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NC0004979_FINAL_Allen_CSA_Figures_2018_20180130
2018 Comprehensive Site Assessment Update January 2018 Allen Steam Electric Plant SynTerra S:\Users\rbarber\FINAL_Allen_CSA_Report_2018.docx FIGURES Note: It is herein noted that Duke Energy is not waiving the right to a compliance boundary(s) to the full extent set out in the law or attempt to impair the Department’s ability to change the compliance boundary(s) in the future, if circumstances warrant. 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL ES1 01/12/2018 01/25/2018 11:17 AM P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\CSM3D\Allen_3D_ES1.dwg FIGURE ES-1 APPROXIMATE EXTENT OF IMPACTS ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS DISCH A R G E C A N A L REESE W I L S O N R DHIGHWAY 273 (SOUTHPOINT RD)LOWER ARMSTRO N G R D VISUAL AID ONLY - DEPICTION NOT TO SCALE DEEP ASH BASIN WASTE BOUNDARY NORTH GENERALIZED GROUNDWATER FLOW DIRECTION APPROXIMATE LANDFILL WASTE BOUNDARY NOTE: 1.OCTOBER, 2016 AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON DECEMBER 7, 2017. AERIAL DATED OCTOBER 8, 2016. 2.STREAMS OBTAINED FROM AMEC FOSTER WHEELER NRTR, MAY 2015. 3.GENERALIZED GROUNDWATER FLOW DIRECTION BASED ON SEPTEMBER 11, 2017 WATER LEVEL DATA. 4.PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY. 5.GENERALIZED AREAL EXTENT OF MIGRATION REPRESENTED BY NCAC 02L EXCEEDANCES OF MULTIPLE CONSTITUENTS (BORON AND ARSENIC) IN MULTIPLE FLOW ZONES. 6.GENERALIZED AREAL EXTENT OF MIGRATION REPRESENTED BY NCAC 02L EXCEEDANCES OF MULTIPLE CONSTITUENTS (BERYLLIUM, NICKEL, SULFATE, AND THALLIUM) IN MULTIPLE FLOW ZONES. A SEPARATE ASSESSMENT IS PLANNED FOR THE COAL PILE AREA. WATER SUPPLY WELL LOCATION SHALLOW DUKE ENERGY PROPERTY BOUNDARY LEGEND BEDROCK AREA OF CONCENTRATION IN GROUNDWATER ABOVE NC2L (SEE NOTE 5) STREAM WITH FLOW DIRECTION MECKLENBURG COUNTYCANAL RD INACTIVE ASH BASIN LAKE WYLIE (CATAWBA RIVER)GASTON COUNTYALLEN PLANT AREA OF CONCENTRATION IN GROUNDWATER ABOVE NC2L POTENTIALLY ATTRIBUTABLE TO THE COAL PILE (SEE NOTE 6)STRUCTURAL FILLASHSTORAGEASHSTORAGESTRUCTURAL FILLRETIRED ASH BASIN ASH LANDFILL ACTIVE ASH BASIN PLANT ALLE N R D COAL PILE SLUICE LINES FIGURE 1-1 2016 USGS TOPOGRAPHIC MAP ALLEN STEAM STATION DUKE ENERGY CORPORATION BELMONT, NORTH CAROLINA BELMONT & W CHARLOTTE NC QUADRANGLES 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY:DATE:JOHN CHASTAIN 1-1 SITE LOC MAP 11/21/2017 01/18/2018 5:33 PM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\DE ALLEN CSAUP FIG 1-1 SITE LOC MAP.dwg CHRIS SUTTELL DUKE ENERGY CAROLINAS 1000 0 1000 2000 GRAPHIC SCALE IN FEET ALLEN STEAM PLANT PARCEL LINE POWER PLANT DISCHARGE CANAL COAL PILE AREA ASH BASIN COMPLIANCE BOUNDARY ASH BASIN WASTE BOUNDARY ACTIVE ASH BASIN INACTIVE ASH BASIN RETIRED ASH BASIN LANDFILL PERMIT NO 3612 CATAWBA RIVER (LAKE WYLIE) NPDES OUTFALL 002 NPDES OUTFALL 001 LANDFILL COMPLIANCE BOUNDARY LANDFILL BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY CONTOUR INTERVAL: MAP DATE: 10 FEET 2016 SOURCE: USGS TOPOGRAPHIC MAP OBTAINED FROM THE USGS STORE AT http://store.usgs.gov/b2c_usgs/b2c/start/%%%28xcm=r3standardpitrex_prd%%%29/.do !( !( POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALPRIMARYPOND 1 PRIMARYPOND 2 PRIMARYPOND 3 STRUCTURALFILL ASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL NPDES O UTFALL001 NPDES O UTFALL002 KI LPECK CTCADELYNCROSSING LN ROWECT B A R R A N D S L N A N N S MIT H L N GLENLIVET CTETTRICK PL SEAMILL RDMALLARANNYRDPEEBLES LNO U T W E L L R D EVANTONLOCH RD H E R MS L E Y R DTIMAHOE LNKINLEY COMMONS LNSELKIRKSHIRE RDLI LYBET LNK E L Y N H I L L S D R B R A C E B R ID G E C T C A R R A D ALE W A Y LY N N P A R K E R L N BUCKLAND RDW IN D Y G A P R DDIXIE RIVER RDHIGHLAND PLCADMAN CTWHITE IBIS CT JOHN DOUGLAS DRD A N A M I C H E L L E C T S H AD Y C RE E K C T MICHAELDOMINICK DRFORESTBAY CTWA RRE NDR LAKEHILL CTIDLEWOODLNA P P L E W O O D P OIN T L N LA K E B R E E Z E LN K E N N E T H WIL S O N L NMITCHELL STH I G H L A N D W A Y 2651REESEWILSONRD EXDG O R DO N LN 2798THE HOTHOLE RDW O O D B E N D D R S O U TH PO IN T D R PENINSULA DRM I D W O O D L N LAKESIDECIR TUCKER RDF A R M R D BELL POST RD B A SIL D R H E A T H E R G L E N L N OLD SPRING RD SHOREWOOD PLT A N G L E W O O D C O V E W I L D L I F E R D L A K E MI S T D R E L LI N G T O N R DWA T E R V I E W D R CYPRUS RD RIVER RUN W I N G P O I N T D RQUIET WATERS RDEGRET RIDGEPLANT ALLEN RD R E E S E W IL S O N R DCANAL RDSOUTHPOINT RDS POINT RDARMSTRONG RDLOWER ARMSTRONG RDNOT ES: 1. IT IS HERE IN NOTED THAT DUKE E NERGY IS NOT WAIVING THE RIGHT TO ACOMPLIANCE BOUNDARY(S ) TO T HE FUL L EXTENT SET OUT IN THE LAW ORATTEMPT TO IMPAIR THE DEPARTMENT'S ABILITY TO CHANGE THE COMPLIANCEBOUNDARY(S) IN THE FUTURE, IF CIRCUMSTANCES WARRANT. 2. PROPERTY BOUNDA RY PROVIDED BY DUKE ENERGY CAROLINAS. 3. NATURAL RESOURCES TECHNICAL REPORT (NRTR) PREPARED BY AMEC FOSTERWHEELER, INC., MAY 29, 2015. 4. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON OCTOBER 11,2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. 5. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATEPLANE COORDINATE SYSTEM FIPS 3200 (NAD83). FIGURE 2-1ALLEN PLANT VICINITY MAPALLEN STEAM STAT IONDUKE ENERGY CAROLINAS, LLCBELMONT, NO RTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Fig02-01 - Plant Vicinity Map.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND FIGURE 2-2 1948 AERIAL PHOTOGRAPH ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:JOHN CHASTAIN FIG 2-2 1948 AERIAL 11/20/2017 01/18/2018 5:11 PM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\DE ALLEN CSAUP HISTORICAL AERIALS.dwg GRAPHIC SCALE 600 IN FEET 0 600 1200 SOURCE: MAY 15, 1948 AERIAL PHOTOGRAPH OBTAINED FROM THE USGS EARTH EXPLORER WEB SITE AT http://earthexplorer.usgs.gov/ ALLEN STEAM PLANT PARCEL LINE FUTURE POWER PLANT FUTURE DISCHARGE CANAL FUTURE COAL PILE AREA DUKE ENERGY CAROLINAS FUTURE ASH BASIN COMPLIANCE BOUNDARY FUTURE ASH BASIN WASTE BOUNDARY FUTURE ACTIVE ASH BASIN FUTURE INACTIVE ASH BASIN CATAWBA RIVER (LAKE WYLIE) "FUTURE" RETIRED ASH BASIN LANDFILL PERMIT NO 3612 FUTURE NPDES OUTFALL 001 FUTURE NPDES OUTFALL 002 FUTURE LANDFILL COMPLIANCE BOUNDARY FUTURE LANDFILL BOUNDARY FUTURE INACTIVE ASH BASIN WASTE BOUNDARY FIGURE 2-3 1973 AERIAL PHOTOGRAPH ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY:DATE:JOHN CHASTAIN FIG 2-3 1973 AERIAL 11/21/2017 01/18/2018 5:12 PM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\DE ALLEN CSAUP HISTORICAL AERIALS.dwg CHRIS SUTTELL GRAPHIC SCALE 600 IN FEET 0 600 1200 SOURCE: MARCH 21, 1973 AERIAL PHOTOGRAPH OBTAINED FROM THE USGS EARTH EXPLORER WEB SITE AT http://earthexplorer.usgs.gov/ POWER PLANT DISCHARGE CANAL COAL PILE AREA ALLEN STEAM PLANT PARCEL LINE FUTURE ASH BASIN COMPLIANCE BOUNDARY FUTURE ASH BASIN WASTE BOUNDARY FUTURE ACTIVE ASH BASIN INACTIVE ASH BASIN DUKE ENERGY CAROLINAS CATAWBA RIVER (LAKE WYLIE) FUTURE NPDES OUTFALL 001 FUTURE NPDES OUTFALL 002 "FUTURE" RETIRED ASH BASIN LANDFILL PERMIT NO 3612 FUTURE LANDFILL COMPLIANCE BOUNDARY FUTURE LANDFILL BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY FIGURE 2-4 2015 AERIAL PHOTOGRAPH ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY:DATE:JOHN CHASTAIN FIG 2-4 2015 AERIAL 11/21/2017 01/18/2018 5:13 PM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\DE ALLEN CSAUP HISTORICAL AERIALS.dwg CHRIS SUTTELL GRAPHIC SCALE 600 IN FEET 0 600 1200 POWER PLANT DISCHARGE CANAL SOURCE: FEBRUARY -MARCH 2015 AERIAL PHOTOGRAPH OBTAINED FROM NC ONE MAP GEOSPATIAL PORTAL AT http://data.nconemap.com/geoportal/catalog/raster/download.page COAL PILE AREA ALLEN STEAM PLANT PARCEL LINE ACTIVE ASH BASIN COMPLIANCE BOUNDARY ACTIVE ASH BASIN WASTE BOUNDARY ACTIVE ASH BASIN INACTIVE ASH BASIN DUKE ENERGY CAROLINAS CATAWBA RIVER (LAKE WYLIE) RETIRED ASH BASIN LANDFILL PERMIT NO 3612 NPDES OUTFALL 001 NPDES OUTFALL 002 LANDFILL COMPLIANCE BOUNDARY LANDFILL BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY SOURCE: 1949 CLOVER USGS TOPOGRAPHIC MAP (1:62500) AND 1949 CHARLOTEE WEST NC TOPOGRAPHIC MAP (1:24000) OBTAINED FROM THE USGS STORE AT http://store.usgs.gov/b2c_usgs/b2c/start/%%%28xcm=r3standardpitrex_prd%%%29/ .do � GRAPHIC SCALE •• 1000 0 1000 ,,,, IN FEET syn:'Cerra 148 RIVER STREET, SUITE 220 111111: GREENVILLE, SOUTH CAROLINA 29601 ____ ....:;. _______ ---I PHONE 864-421-9999 www.synterracorp.com 2000 ������GY DRAWN BY: JOHN CHASTAIN DATE: 11/21/2017 PROJECT MANAGER: CHRIS SUTTELL CAROLINAS LAYOUT: 2-5-1949 USGS TOPO 01/18/2018 5:44 PM P: Duke Ener FIGURE 2-5 1949 USGS TOPOGRAPHIC MAP ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CLOVER SC- NC & CHARLOTEE WEST NC QUADRANGLES FIGURE 2-6 NPDES FLOW DIAGRAM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: DUKE ENERGY PROJECT MANAGER: C. SUTTELL LAYOUT: DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 2- 6 NPDES Flow Diagram.pdf Source Information: Process Flow Diagram Provided by Duke Energy Carolinas, LLC. Condenser Cooling Water Sanitary Waste Coal Handling Sumps Coal Yard Sumps Ash Sluice Water FGD Water Treatment Boiler Boiler Rm Sumps Intake Screen Backwash Ash Basin Turbine Rm Sumps Yard Drainage Sump Landfill Leachate Stormwater FGD WWTS Limestone Stormwater Sump Powerhouse Sump Misc Equip Cooling & Seals Ash Silo Sump Asiatic Clam/Debris Filter Backwash FGD Stormwater Sump Stormwater Outfall 001 649 MGD Outfall 002A Intermittent South Fork River South Fork River Catawba River Catawba River Catawba River Catawba River Catawba River Catawba River Outfall 004 6.5 MGD Outfall 002B (Intermittent) Outfall 003 4.5 MGD Atm Internal Outfall 005 0.5 MGD Outfall 002 18.6 MGD Atm SW-D1 SW-U1 SOURCE NOTES: NOT ALL UTILITIES ARE IDENTIFIED ON THIS DRAWING. THE UTILITIES SHOWN ON THIS DRAWING ARE VISUAL AIDS. THE HORIZONTAL AND VERTICAL LOCATIONS OF THE UTLITIES HAVE NOT BEEN FIELD VERIFIED. ANY UTILITIES SHOWN ARE APPROXIMATE. LEGEND WELL IN DEEP ZONE WELL IN SHALLOW ZONE WELL IN BEDROCK ZONE ABMW-07 WELL IN ASH PORE WATER WELL ABANDONED ASH BASIN COMPLIANCE BOUNDARY PARCEL LINE DUKE ENERGY (APPROXIMATE) ASH BASIN WASTE BOUNDARY WATER SUPPLY WELL SAMPLED WATER SAMPLE LOCATION SAMPLED SURFACE WATER FLOW DIRECTION FIGURE 2-7 SITE LAYOUT ALLEN STEAM STATION 253 PLANT ALLEN RD BELMONT, NORTH CAROLINA DUKE ENERGY CAROLINAS FIG 2-7 (SITE LAYOUT) L. DRAGO JOHN CHASTAIN PROJECT MANAGER: LAYOUT NAME: DRAWN BY: CHECKED BY: C. SUTTELL DATE: DATE: www.synterracorp.com 148 River Street, Suite 220 Greenville, South Carolina 29601 864-421-9999 GRAPHIC SCALE 4002001000200 (IN FEET) AREA OF WETNESS (AOW) SAMPLE LOCATION WATER SUPPLY WELL NOT SAMPLED APPROXIMATE STREAM (NON-JD) TOPOGRAPHY IS BASED ON LIDAR BARE EARTH DATA OBTAINED FROM THE FRIS\NORTH CAROLINA FLOOD RISK INFORMATION SYSTEM AT http://fris.nc.gov/fris/Download.aspx?FIPS=031&ST=NC&user=General%20Public AND A DRAWING TITLED AERIAL TOPOGRAPHIC SURVEY-ALLEN STEAM STATION BY WSP, JOB NUMBER 157002.00 AND DRAWING FILE NAME APRIL 2014_ALLEN_FINAL_10-30-15.DWG SAMPLE LOCATIONS WERE OBTAINED FROM HDR INFORMATION AND MAY BE APPROXIMATE IN SOME CASES. SOIL OR GEOTECHNICAL BORING APPROXIMATE POND OR RESERVOIR (NON-JD) APPROXIMATE EFFLUENT CHANNEL APPROXIMATE ASH BASIN PONDED WATER AB-37SAB-37D AB-36S AB-36D SB-1 AB-35D AB-35S AB-35BR SB-6 SB-2 SB-4 SB-3 AB-2D AB-2 GWA-22S GWA-22D AB-13S AB-13D S-10 OW-18 AB-30SAB-30D AB-28D AB-28S OW-19 OW-12 OW-8 AB-34S AB-34D SB-5 OW-3 AB-39S AB-39D OW-7 AB-33D AB-33S CCR-5DCCR-5 CCR-6DCCR-6 CCR-7D CCR-7S CCR-8D CCR-8S CCR-9S CCR-9D OW-5 S-9 OW-10 AB-32S AB-32D OW-9 OW-20 AB-31D AB-31S AB-29D AB-29S AB-29SL AB-27DAB-27BR AB-27S SW-4 SW-3 GWA-5D GWA-5S GWA-5BRA CCR-11S CCR-11D OW-16 GWA-4D GWA-4S GWA-4BR AB-9D AB-9S SW-7 ANSW-16 CCR-14S CCR-14D AB-26D AB-26S GWA-3D GWA-3S GWA-3BRA SB-9 SW-2 CCR-17S CCR-17D S-5 S-6 S-7 CCR-16D CCR-16S S-8B S-8 ANSW-15 S-4 ANSP002 AB-10D AB-10S ANSP002 S-3 ANWW-2 S-2 CCR-18S CCR-18D AB-22D AB-22BRL AB-22S SW-1 ANSP005 CCR-20SCCR-20D CCR-22S AB-11D CCR-23D CCR-23S GWA-2D GWA-2S GWA-1D GWA-1S GWA-1BR S-1 AB-12S AB-12D GWA-26S AB-5 pH WELL CCR-21D CCR-21S AB-21S AB-21D AB-21SLAB-21BR AB-21BRL SB-8 AB-23BRUAB-23S AB-20S AB-20D GWA-9D GWA-9BR GWA-9S SW-5 AB-4S AB-4D AB-4BR AL49 AL58AL57 AL55 GWA-23D GWA-23S BGSB-GWA-23 AL51 AL56 AL54 AB-24S AB-24D AB-24BRAB-24SL ANWW-3 AB-14D AB-14BR AL59 AL60AL61AL62 AL67 AL68 AL69 AL70 AL71 AL63 AL72 AL73 AL53AL52 AL66 AL65 AL64 SB-7 AB-38D AB-38S AB-38BR GWA-18D GWA-18S CCR-1SCCR-1DA CCR-BG-1S AB-1R AB-1 GWA-17DGWA-17S CCR-2S CCR-2D GWA-8D BG-4D BG-4S BG-4BR AL133 AL1 AL131 BGSB-BG-3 BG-3S BG-2D BG-2S BG-2BRA-2 BGSB-BG-2 GWA-16DGWA-16S AL139 AL3 AL96 AL95 CCR-3DA CCR-3S GWA-7D GWA-7S GWA-6DA GWA-6S CCR-4SA CCR-4DA BGSB-BG-1 AL35 AL101 AL48 AL93 AL94 AL114 AL47 AL142 AL45 AL46 AL37 AL44 AL43AL38 AL36 AL92 AL39 AL50 AL50 GWA-24D AB-25BR AB-25BRU AB-25S AB-25SL AL113 AL121 AL141 AL74 AL100 AL20 AL22 AL34 AL21 AL23 AL33 AL32 AL24AL25 GWA-21DA GWA-21S GWA-21BR AL75 AL76 AL84 AL83 AL82 AL81 AL78 AL77 AL79AL80 GWA-14S GWA-14DA AL31 AL30 AL32-?? AL7 AL123 AL102 AL15 AL14 AL13 AL12 AL136 AL140 AL11 AL10 AL12 AL116 AL117 AL9 AL118 AL8 AL8-? AL4 AL5 GWA-19D GWA-19S AL19 AL18 AL17 AL16 GWA-15D GWA-15S AL6 AL29 AL28 AL110 AL27 AL26 AL130AL115 AL138 AL135 ANWW-4 SW-6 ANWW-1 ANSP001 ANTD001 AB-6AAB-6R AL111 AL108AL85 AL97 AL88 ANFD001 NPDES REGULATED PLANT WATER FEATURE NPDES REGULATED FLOW DIRECTION STAIRS ACTIVE ASH BASIN DISCHARGE TOWER PRIMARY POND 3PRIMARY POND 2PRIMARY POND 1 INACTIVE ASH BASIN ASH STORAGE STRUCTURAL FILL ASH STORAGE INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL-PHASE I PERMIT NO. 3612 WILDLIFE RD FARM RD MILWOOD LN IDELWOOD LNARMST R O N G R D HIGHLAND WAY HEATHER GLENN CT CAMDEN CTHIGHLA N D PLJOHN D O U G L A S D R WARREN DR MITCHELL STMITCHELL STSOUTHPOINT D R RIVER R U N ARMS T R O N G R DLAKE M IST DR RIVE R R U N REESE WI L S O N R D NUTALL OAK LN NUTALL OAK LN WOODBEND DR LAKE HILL CTPLANT A L L E N R D CANAL RD BOAT C LUB RDSOUTHPOINT RDSOUTHPOINT RD (NC HWY 273)STRUCTURAL FILL STRUCTURAL FILL STRUCTURAL FILL POWER PLANT SOUTH POINT FIRE DEPARTMENT EATON CORPORATION SAILAWAY BAY COAL PILE LANDFILL COMPLIANCE BOUNDARY LANDFILL BOUNDARY DORS FILL BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY 1/16/2018 1/16/2018 HOLDING BASIN BG-2BR BG-3D CCR-3D GWA-8S CCR-1D CCR-4D CCR-4S GWA-14D GWA-21D SOUTHPOINT RD (NC HWY 273)SOUTHPOINT RD (NC HWY 273)GWA-26D BG-1D AB-22BR GWA-3BR AB-8 STAIRS 48" HDPE DISCHARGE PIPE CULVERT CULVERT DISCHARGE TOWER HEAD WALL EMERGENCY SPILLWAY PIPES OBSERVATION WELL AT NEW HOLDING BASIN DEWATERING WELL AT NEW HOLDING BASIN GWA-5BR LAKE WYLIE (CATAWBA RIVER ) P-1 PIEZOMETER IN UNKNOWN ZONE (AECOM DATA) OW-15 OW-16 OW-18 OW-17 OW-14 OW-13 OW-22 OW-21PN-2D PN-1D OW-20 OW-12 OW-11 OW-8 OW-10 P-7 P-9 AL39 AL36 GWA-9BR GWA-9D GWA-9S GWA-5BR S-3 SB-7 SW-2 NPDES OUTFALL 002 NPDES OUTFALL 001 CELL 1 CELL 2A CELL 2B OW-5P-1 OW-2 P-3 OW-4 OW-6 RAB ASH LANDFILL WASTE BOUNDARY BASED ON LINER LIMITS RAB ASH LANDFILL COMPLIANCE BOUNDARY RAB ASH LANDFILL WASTE BOUNDARY BASED LINER LIMITS IN THE S&ME DRAWINGS FOR THE RAB ASH LANDFILL PHASE I, PROJECT NUMBER 7235-14-011, DATED 06-16-2015. RETIRED ASH BASIN BG-1S BG-1DA OW-6 OW-5 OW-4 OW-3 OW-2 OW-8 OW-1 OW-7 OW-6 GWA-24SGWA-24BR GWA-24SA GWA-6BR GWA-6D CCR-BG-1D CCR-BG-1DA CCR-11DA CCR-22DA CCR-22D P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\DE ALLEN CSAUP BASE MAP CALL OUTS_1-12-18.dwg GWA-6BRA NOTE: 1.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PIPING OBTAINED FROM DUKE ENERGY, STANTEC, AND SYNTERRA AOW INSPECTION. !(!( !(!( !(!(!(!( !( !(!( !( !(!( !(!( !( !(!( !(!( !(!(&>&>&>!(&>!(!( !(&>!(&>!( !(&>!(!(&>&>!(&>&>!( !(&>!(&>!(&>!(!(&>!(&>!( !(&>&>&>&>&>&>&>&>&>&>&>!( !(&>!(&>&>!( !( !( !( !( !( !( !( !( !( !( !(&>!(!( !(!(&>&>&>!( !(!(!( !( !( !( !( !( !( !(!(!(!(!(!(!(!( !(!(!(!( !(!( !(!(!(!(!(!(!(!( !(!(!( !(!( !(!( !(!( !(!( !(!(!(!( !(!(!( !(!( !(!( !(&>&>&>!(&>!(!(&>!(&>&>!(!(&>&>&>&>!(!(&>&>&>!(!( !(!(&>&>!(!(&>!( !(!( !(!( !(!( !(!( !(!(!(!( !(!( !(!( !(!(!( !(!( !(&>&>&>&>&>&>&>!( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !(!( !( !( !( !( !( !( !( !( ACTIVEASH BASIN INACTIVEASHBASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALSTRUCTURALFILL POWER PLANT ASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL NPDES OUTFALL001 NPDES OUTFALL002 AB-38S/D/BR CCR-20S/D AB-1*/R AB-2/D AB-4*/S/D/BR AB-5 AB-6A/R AB-8* AB-9S/D AB-10S/D AB-11D AB-12S/D AB-13S/D AB-14D/BR AB-21S/SL/BRL AB-22S/D/BR/BRL AB-23S AB-24S/SL/BR AB-25S/SL/BR AB-26S AB-27S/BRAB-28S AB-29S/SLAB-30S AB-31S AB-37S BG-1S/D*/DA BG-3S BG-4S/D/BR CCR-1S/D*/DA CCR-2S/D CCR-3S/D*/DA CCR-4S*/D*/SA/DA CCR-5S/D CCR-6S/D CCR-7S/D CCR-8S/D CCR-9S/D CCR-11S/D*/DA CCR-14S/D CCR-16S/D CCR-17S/D CCR-18S/D CCR-21S/D CCR-22S/D*/DA CCR-23S/D CCR-BG-1S/D*/DA GWA-2S/D GWA-6S/DA/BRA GWA-8S/D GWA-14S/DA GWA-15S GWA-16S/D GWA-17S/D GWA-18S/D GWA-19S/D GWA-21S/D*/DA/BR GWA-22S/D GWA-23S/D GWA-26S/D GWA-24S*/SA/D/BR PH ADJ BLDG BGSB-BG-3 BGSB-GW-8 BGSB-BG-1 BGSB-BG-2 BGSB-GWA-23 BGSB-GWA-26 SB-1 SB-2 SB-3 SB-4 SB-5 SB-6 SB-7 SB-8 SB-9 ANFD001 ANIN001 ANSP001 ANSP002 ANSP003 ANSP005 ANSW-15 ANTD001 ANWW-1 ANWW-2 ANWW-3 ANWW-4 S-8 S-8B S-9 S-10 S-1 S-2 S-3 S-4 S-5S-6 S-7 SW-1 SW-2 SW-3 SW-4 SW-5 SW-6 SW-7 SW-D1 SW-U1 AB-20S/D AB-32S/D AB-33S/D AB-34S/D AB-35S/D/BRAB-36S/D AB-39S/D BG-2S/D GWA-1S/D/BR GWA-3S/BR* GWA-4S/D GWA-5S/D GWA-7S/D GWA-9S/D/BR GWA-14D* GWA-15D AB-37D AB-23BRU AB-24D AB-25BRU AB-26D GWA-3D/BRA AB-31D GWA-4BR GWA-5BR*/BRA GWA-6D*/BR* BG-3D AB-21D/BR AB-30D AB-28D AB-27D AB-29D BG-2BR*/BRA PH WELL CIF WELL QUIET WATERS RD HIGHLAND PLJOHN DOUGLAS DRD A N A M I C H E L L E C T S H A D Y C R E E K C T MICHAELDOMINICK DRB O A T C L U B R D LAKEHILL CTH I G H L A N D W A Y 2651G O RD O N LN 2798THE HOTHOLE RDSUNDERLAND RDW O O D B E N D D R M I D W O O D L N F A R M R D EL L IN GTON RD B A SIL D R H E A T H E R G L E N L NTUCKER RDOLD SPRING RD T A N G L E W O O D C O V E WATERVIEW DR CYPRUS RD SHOREWOOD PLW I L D L I F E R D L A K E MI S T D R RIVER RUN W I N G P O I N T D R EGRET RIDGER E E S E W IL S O N R D PLANTALLEN RD S POINT RDARM STRO NG RD LOWER ARMSTRONG RDCANAL RDSOUTHPOINT RDNOTES:* ABANDONED MONITORING W ELL PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. NATURAL RESOURCES TECHNICAL REPORT (NRTR) PREPARED BY AMEC FOSTERWHEELER, INC., MAY 29, 2015. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). FIGURE 2-8SAMPLE LOCATION MAPALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/29/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Fig02-08 - Sample Location Map.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET !(GROUNDWATER SAMPLE LOCATION !(SOIL SAMPLE LOCATION &>GROUNDWATER AND SOIL SAMPLE LOCATION !(AREA OF WETNESS (AOW) SAMPLE LOCATION &>AOW AND SEDIMENT SAMPLE LOCATION !(WATER SAMPLE LOCATION ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BOUNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND FIGURE 3-1KNOWN SAMPLE OF ASH FOR COMPARISON (SOURCE: DUKE ENERGY 2014) ALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.comDRAWN BY: E. KINSEY PROJECT MANAGER: C. SUTTELL LAYOUT: DATE: JANUARY 2018FILEPATH: P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 3-1 - Known Sample Ash for Comparison.pdfRange (10th percentile – 90th percentile) in bulk composition of fly ash, bottom ash, rock, and soil. (Source: EPRI 2009a) FIGURE 3-2ELEMENTAL COMPOSITION FOR BOTTOM ASH, FLY ASH, SHALE, AND VOLCANIC ASH (SOURCE: EPRI 2009A)ALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINA148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.comDRAWN BY: E. KINSEY PROJECT MANAGER: C. SUTTELLLAYOUT: DATE: JANUARY 2018FILEPATH: P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 3-2 - Elemental Composition Ash.pdf FIGURE 3-3COAL ASH TCLP LEACHATE CONCENTRATION RANGES COMPARED TO REGULATORY LIMITS (SOURCE: EPRI 2010)ALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINA148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.comDRAWN BY: E. KINSEY PROJECT MANAGER: C. SUTTELL LAYOUT: DATE: JANUARY 2018FILEPATH: P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 3-3 - Coal Ash Compared to Regulatory Limits.pdf FIGURE 3-4 PIPER DIAGRAM – ASH PORE WATER ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: T. PLATING PROJECT MANAGER: C. SUTTELL LAYOUT: E. KINSEY DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment \CSAs\2018-01 CSA Update\Final\Figures\Figure 3-4 Piper Ash Pore.pdf Well ID Notes: Pink–Ash Pore Well – Inactive Basin Dark Pink – Ash Pore Well – Active Basin Data with charge balance >10% are omitted from plot. Data included for analysis up to September 2017. Data represent samples with pH < 8.5 and turbidity < 10. Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Generally characteristic of ash pore water I AB-20S J AB-21S K AB-21SL L AB-23S M AB-24S O AB-24SL P AB-25S A AB-25SL B AB-27S C AB-28S D AB-29S E AB-30S A AB-33S G AB-35S H AB-38S !( !( Copyright:© 2013 National Geographic Society, i-cubed FIGURE 4-1USGS MAP WITH WATER SUPPLY WELLSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCDRAWN BY: A. ROBINSONLAYOUT: FIG 1 (SITE LOCATION MAP)PROJECT MANAGER: C. SUTTELL DATE: 01/26/2018 P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Fig04-01 - USGS with Water Supply Map.mxd FIGURE 4-1USGS MAP WITH WATER SUPPLY WELLSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINA INACTIVE ASH BASIN WASTE BOUNDARY NOTES:DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLEUP TO DECEMBER 31, 2015. SOURCE:USGS 24K TOPOGRAPHIC MAP OBTAINED VIA ESRI ARCGIS ONLINE, BELMONT AND CHARLOTTE WEST QUADRANGLES, QUADID 35081B1 AND 35080B8. 1,000 0 1,000 2,000500 GRAPHIC SCALE IN FEET DATE: 01/26/2018 CONTOUR INTERVAL: 10ftMAP DATE: 1987 DUKE ENERGY CAROLINASALLEN PLANT SITE BOUNDARY DRAWN BY: A . ROBINSONPROJECT MANAGER: C. SUTTELLLAYOUT: FIG 1 (SITE LOCATION MAP) ALLEN STEAM STATIONGASTON COUNTY ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLBOUNDARIES ASH BASINCOMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY NPDES OUT FALL002 WATER SUPPLY WELL NPDES OUT FALL001 !( !( ACTIVEASH BASIN RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612INACTIVEASH BASIN ASHSTORAGE ASHSTORAGE CATAWBA RIVER(LAKE WYLIE) STRUCTURALFILLDISCHARGE CANALAL1 AL101 AL103 AL111 AL112 AL115 AL117 AL119 AL120 AL122 AL124AL125 AL126 AL127 AL129 AL130 AL131 AL132 AL133 AL135 AL137 AL138 AL139 AL142 AL3 AL39 AL40 AL41 AL42 AL44 AL45 AL47 AL48 AL5 AL50 AL50 AL85 AL88 AL89 AL90 AL91 AL92 AL93 AL94 AL95 AL96 AL97 AL98 AL99 NPDESOUTFALL 001 NPDESOUTFALL 002 BRECKFIELD CTK I L P E C K C T B A L L Y B A Y D R K E L T ON H I L L L N HERIOT FIELD DR ROWECTLAMOND PTDURNESSDRBEREWICKPARK RDBRIDESWELL LNGLENLIVETCTMALLARANNY RDPEEBLES LNO U T W E L L R D BRIGHT RDEMERAL DPOI NT DRRO C K ISLAND R D QUIET BAY CT W H I T H O R N W A Y SPRINGHOLM DRTIMAHOE LNKINLEY COMMONS LNSELKIRKSHIRE RDL IL Y B E T L N HORTON RDSEDGEBURN DRKELYN HILL S DRBARRANDS LNS H O P T O N R D LANGWELL LNSEAMILL RDEVANTON LOCH RDB R A C E B R ID G E C T CARRADALE WAYHERMSLEY RDLOCHFOOT DR G LENBURN LNLYNN PARKER LNB E R E W IC K C O M M O N S P K W Y GARRISON RDBUCKLAND RDW IN D Y G A P R D DIXIE RIVER RDCADMAN CTWHITE IBIS CT JOHN DOUGLAS DRS H A D YCRE E K C T MICHAEL DOMINICK DRG L A D E S P RIN G C T R E F LE C T IO N P O IN T E B L V DIDLEWOODLNA P P L E W O O D P OIN T L N L A K E B R E E Z E LN K E N N E T H WILS O N L NMITCHELL STH I G H L A N D W A Y 2651G O RDO N LN2798THE HOTHOLE RDSOUTHPOINT DRQUIET W ATERS RD M I D W O O D L N F A R M R D BELL POST RD B A SIL D R HEATHER GLEN LN O L D S P RIN G R D SHOREWOOD PLT A N G L E W O O D C O V E W I L D L I F E R DTUCKER RDL A K E M IS T D R E L L I N GT ON R D WATERVIEW DR C Y P R U S R D RIVER RUN WING POINT DREGRET RIDGEPLANT ALLEN RDCANAL RDR E E S E W IL S O N R DARMSTRONG RDLOW ER ARMSTRONG RDSOUTHPOI NT RDS POINT RDFIGURE 4-2WATER SUPPLY WELL LOCATIONSALLEN STEAM ST AT IONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\M ap_Docs\CSA_Supplement_2\Fig04-02 - Water Supply Map.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET NOTES:WATER SUPPLY WELL ANALYTICAL RESULTS ARE LOCATED IN APPENDIX B, TABLE 1. DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. NATURAL RESOURCES TECHNICAL REPORT (NRTR) PREPARED BY AMEC FOSTERWHEELER, INC., MAY 29, 2015. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON OCTOBER 11, 2017.IMAGE COLLECTED ON OCTOBER 8, 2016. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND WATER SUPPLY WELL SAMPLED WATER SUPPLY WELL NOT SAMPLED ASH BASIN WASTE BOUNDARY INAC TIVE ASH BASIN WASTE BOUNDARY LAN DFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LAN DFILL COMPLIANCE BOUNDARY HALF-MILE RADIUS OF COMPLIANCE BOUNDARY DUKE ENERGY CARO LINAS ALLEN PLANTSITE BOUNDARY <STREAM (AMEC N RTR 2015) WETLAND (AMEC NRTR 2015) SEE INSET AL100AL102 AL11 AL110 AL113 AL114 AL118 AL12 AL121 AL123 AL136 AL14 AL140 AL141 AL15 AL16 AL17 AL19 AL2 AL20 AL21 AL22 AL23 AL24AL25 AL26 AL27 AL28 AL29 AL30 AL31 AL32 AL32 AL33 AL34 AL49AL51 AL52 AL53 AL54 AL55 AL56 AL57 AL58 AL59 AL6 AL60 AL61 AL62 AL63 AL64 AL65 AL66 AL67AL68AL69 AL7 AL70 AL71 AL72AL73 AL74 AL75 AL76 AL77 AL78 AL79 AL8 AL8 AL81 AL82 AL83 AL84 AL9 ACTIVEASH BASIN INACTIVEASHBASIN CADMAN CTRIVER RUN HEATHERGLEN L N A R M S T R O N G R D H I G H L A N D W A Y STATERD 3010S POINT RDSTATE RD 2525S T A T ERD 2 5 2 7 W I L D L I F E R DSTATEHWY 273INSETSCALE: 1" = 550 ' Allen Steam StationProperty Line Lake WylieCatawba RiverAUGUST 2015 5-1G:\Projects\Duke_Energy\Ash_Basin_GW_Assessment\Geologic_Site_Vicinity_Maps\MXDs\Fig_5_2_Allen_Site_Vicinity_Geology_CSA_Report_Map_20150717.mxdDATE FIGURE 5,000 0 5,000 10,000SCALE (FEET) N REGIONAL GEOLOGIC MAP DUKE ENERGY CAROLINAS, LLC ALLEN STEAM STATION GASTON COUNTY, NORTH CAROLINA Notes:Source: Geologic Map of the Charlotte 1° x 2° Quadrangle, North Carolina and South Carolina, 1988, R. Goldsmith, D. J. Milton, and J. W. Horton, Jr., USGS. Metamorphosed quartz diorite and tonalitemqd Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015. o Meta QuartzDiorite Metagranite Pegmatite MetadiabaseMeta QuartzDiorite Pegmatite Metagranite Meta QuartzDiorite PegmatiteMetadiabase Metadiabase MetaQuartzDiorite Meta QuartzDiorite Meta QuartzDiorite Metadiabase Pegmatite MetaQuartz Diorite Meta Quartz Diorite Meta Quartz Diorite Meta QuartzDiorite Meta QuartzDiorite Meta Quartz DioriteMetaQuartz Diorite Meta Quartz DioriteMeta QuartzDiorite Meta QuartzDiorite MetaQuartzDiorite Meta QuartzDiorite Meta QuartzDiorite Meta QuartzDiorite Meta QuartzDiorite Meta QuartzDioriteMeta QuartzDioriteMetaQuartzDiorite Meta Quartz Diorite Meta Quartz DioriteQuartzFragments C DScgb mqd mqd mqd mqd mqd mqd mqd mqd DOgd q Meta QuartzDiorite MetaQuartzDiorite Meta QuartzDiorite MetaQuartzDiorite Quartz Fragments QuartzFragments Meta QuartzDiorite Metadiabase Metagranite Meta QuartzDiorite Meta QuartzDioriteMetaQuartzDiorite MetaQuartzDioriteMetadiabaseMeta Quartz Diorite39 SITE GEOLOGIC MAPDUKE ENERGY CAROLINAS, LLCALLEN STEAM STATION ASH BASINGASTON COUNTY, NORTH CAROLINA DATE FIGURE AUGUST 2015 5-2 NOTES:1. ASH BASIN WASTE BOUNDARIES AND ASH STORAGE AREA BOUNDARIES ARE APPROXIMATE..2. ORTHOPHOTOGRAPHY IS FROM NC ONEMAP GIS ONLINE SERVICE.3. THE COMPLIANCE BOUNDARY IS ESTABLISHED ACCORDING TO THE DEFINITION FOUND IN 15A NCAC 02L.0107(a).4. DUKE ENERGY PROPERTY BOUNDARY WAS SUPPLIED BY DUKE ENERGY REAL ESTATE.5. BASED ON GEOLOGIC MAP OF THE CHARLOTTE 1° X 2° QUADRANGLE, N.C. AND S.C. (GOLDSMITH ET. AL. 1988) AND HDR FIELD RECONNAISSANCE (2004, 2015)6. SERVICE LAYER CREDITS: NC ONEMAP, NC CENTER FOR GEOGRAPHIC INFORMATION AND ANALYSIS, NC 911 BOARD N Legend GEOLOGY (C) Contact Metamorphic Rocks - Southwest ofCharlotte, N.C. rock composed dominantly ofalbite or sodic oligoclase and hedenbergite, withor without amphibole, andradite, orthoclase, andsphene, probably originally metagranodiorite andrelated metagranitoids (mgd) metasomatized inaureole of gabbro (DScgb) and perhaps ofgranodiorite and related granitoids (DOgd) (DOgd) Granodiorite and Related Granitoids -Gray, medium-grained, massive to weaklyfoliated rock; composed mostly of plagioclaseand quartz with lesser amounts of potassium-feldspar and biotite with or without minorhornblende; may include bodies related toSalisbury Plutonic Suite or less recrystallizedphases of metagranodiorite (mgd) (DScgb) Gabbro of Concord Plutonic Suite(Devonian and Silurian) - Gabbro, norite,gabbronorite, and hornblende gabbro; majorminerals are plagioclase, both clinopyroxene andorthopyroxene, and hornblende, biotite, andolivine or quartz; as mapped, may include somemetagabbro (mgb) (mqd) Metamorphosed Quartz Diorite andTonalite - Gray, usually medium- to coarse-grained, generally foliated rock composeddominantly of plagioclase, quartz, biotite,hornblende, and epidote; biotite, hornblende, andepidote commonly associated in clots replacingoriginal mafic phenocrysts; clots may be smearedout, thus defining foliation (q) Quartzite - Commonly contains muscovite(grading into phyllite and schist (ps) wheremuscovite is abundant), andalusite, kyanite, orsillimanite, chloritoid, pyrite (less commonlyhematite), accessory rutile, locally minor gahniteand aluminum phosphates; mostlymetamorphosed, hydrothermally leached andsilicified rock; some may be metamorphosedsandstone OUTCROPPINGS !(Meta Quartz Diorite !(Metadiabase !(Metagranite !(Quartz FragmentsTOP-OF-ROCK AT BORINGS ")Meta Quartz Diorite ")Metadiabase ")Metagranite ")PegmatiteoStrike and Dip CONTACTS - Solid where approximate;dotted where concealed 500 0 500 1,000SCALE (FEET) Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015. 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: EPRI, 2004 PROJECT MANAGER: C. SUTTELL LAYOUT: DATE: JANUARY 2018 P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support \Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 5-3 Piedmont Slope-Aquifer System.pdf FIGURE 5-3 PIEDMONT SLOPE-AQUIFER SYSTEM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA SOURCE: LeGrand, H. (2004). A master conceptual model for hydrogeological site characterization in the Piedmont and Mountain Region of North Carolina: A guidance manual. North Carolina Department of Environment and Natural Resources, Division of Water Quality, Groundwater Section, Raleigh, NC, 55. A A' (NORTH)(SOUTH)GWA-8SGWA-8DBG-4SBG-4DBG-4BRAB-35SAB-35DAB-35BRSB-3SB-4GWA-22SGWA-22DAB-13DGWA-23SGWA-23DGWA-26SGWA-26DDISCHARGE CANAL EL. 570 (APPROXIMATE) ASH STORAGE AREA STRUCTURAL FILL SAPROLITE SAPROLITE SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH ASH ASH PORE WATER FILL TRANSITION ZONE ASH PORE WATER BEDROCKBEDROCK BEDROCK BEDROCK BEDROCK AB-13SCCR-1DACCR-1SAL21AL20AL22AL34AL61AL56IN ACTIVE ASH BASIN ASH PORE WATER ALLEN STEAM STATION SOUTHPOINT ROADASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN (ASH STORAGE/ STRUCTURAL FILL) 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECTAA 1/17/2018 01/29/2018 9:04 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_A-COI.dwg FIGURE 6-1 GENERAL CROSS SECTION A-A' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATIONA'ANOTE: CROSS SECTION A-A' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. SOURCE INFORMATION: NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. CAROLINAS SCALE: AS SHOWN573.23'573.69'576.79'609.83'607.36'621.36'621.43'620.60'632.25'632.81'637.24'637.11'637.89'637.48'636.18'636.22'GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE 597.25'WATER LEVEL SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECTBB 1/28/2018 01/29/2018 9:14 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 6-2 GENERAL CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 100 200 400 HORIZONTAL SCALE: 1" = 400' VERTICAL SCALE: 1" = 80' 5X VERTICAL EXAGGERATION CAROLINAS CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. SOURCE INFORMATION: NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. SCALE: AS SHOWN GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE577.99'583.23'592.37'588.27'597.25'593.54'599.64'613.09'614.16'613.39'618.52'639.16'620.57'637.39'640.10'636.95'636.92'615.70'615.14'615.06'597.25'WATER LEVEL BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ALLUVIUM SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) C C' (WEST)(EAST)GWA-17SGWA-17DGWA-18SGWA-18DAB-38DAB-38SSB-3AB-39DAB-39SAB-33DAB-33SAB-32DAB-32SGWA-5SGWA-5DGWA-5BRASH STORAGE AREA INACTIVE ASH BASIN ASH PORE WATER ASH PORE WATER STRUCTURAL FILL AB-38BRGWA-5BRAAB-1RALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 0 50 100 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL / C. NEWELL XSECTCC 1/28/2018 01/29/2018 9:33 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_C-COI.DWG FIGURE 6-3 GENERAL CROSS SECTION C-C' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS CROSS SECTION LOCATION C' C NOTE: CROSS SECTION C-C' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. SCALE: AS SHOWN615.91'616.65'620.34'622.11'622.03'622.60'623.10'622.62'618.26'617.50'593.54'599.64'583.53'576.29'568.53'570.35'570.27'GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE 597.25'WATER LEVEL D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: C. SUTTELL DATE:ADAM FEIGL/C. NEWELL XSECTDD 1/28/2018 01/29/2018 10:18 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg 0 100 200 400 HORIZONTAL SCALE: 1" = 400' VERTICAL SCALE: 1" = 80' 5X VERTICAL EXAGGERATION SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. CAROLINAS CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. SCALE: AS SHOWN FIGURE 6-4 GENERAL CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA603.21'604.94'626.92'628.65'626.16'626.32'622.57'621.25'620.97'620.57'621.43'620.6'621.36'612.37'611.48'578.04'579.12'571.84'571.61'570.61'GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE 597.25'WATER LEVEL ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: C. SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECTEE 1/28/2018 01/29/2018 10:26 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwgCAROLINAS E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. FIGURE 6-5 GENERAL CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA SCALE: AS SHOWN635.16'635.56'642.92'637.24'637.11'636.17'636.03'637.78'637.96'636.92'636.95'637.39'640.10'583.51'582.04'571.05'573.33'573.56'SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE 597.25'WATER LEVEL FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: SCOTT SPINNER DATE:ADAM FEIGL/ C. NEWELL XSECTFF 1/28/2018 01/29/2018 10:35 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwgCAROLINAS CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. SCALE: AS SHOWN FIGURE 6-6 GENERAL CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA F'F636.04'634.65'638.31'635.83'635.69'635.67'636.93'637.86'636.35'636.54'636.61'636.42'636.20'595.20'600.35'599.49'565.48'565.42'SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE 597.25'WATER LEVEL &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&<AB-38S625.06 AB-4S639.32 AB-20S637.92 AB-21S636.46 AB-21SL636.54 AB-23S637.56 AB-24S635.89 AB-24SL637.44 AB-25S637.47 AB-25SL639.41 AB-27S618.99AB-28S639.89 AB-29S613.19AB-29SL612.97AB-30S617.20 AB-33S600.25 AB-34S612.28 AB-35S620.45AB-36S622.61 AB-37S623.43 AB-39S617.24 GWA -9S638.19 GWA -14S628.75 GWA -24S*638.30 AB-12S639.14 AB-13S638.70 BG-2S589.40 BG-3S607.32 BG-1S635.14 BG-4S576.88 GWA -16S605.00 GWA -19S628.65 GWA -21SNM GWA -22S633.73 GWA -23S638.95 GWA -26S636.39 AB-1R621.55 AB-6A571.69AB-6R572.45 AB-9S571.22 AB-10S566.81 AB-22S595.74 AB-26S620.69 AB-31S578.36 AB-32S582.85 AB-1NM GWA -1S617.29 GWA -2S566.08 GWA -3S572.40 GWA -4S572.39 GWA -5S570.65 GWA -6S597.75 GWA -7S583.35 AB-5637.21 AB-2624.58 GWA -8S608.32 GWA -15S627.26 GWA -8SANMGWA-17S616.98 GWA -18S624.48 GWA -24SANM590620590610600 5 7 5 590 5 7 0 600 638 610 620630580600580575 570580590600610620630580 6 3 8 638ACTIVEASH BASIN RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612INACTIVEASH BASIN ASHSTORAGE ASHSTORAGE CATAW BA RIVER(LAKE WYLIE)WATER ELEVATION565' (APPROX)DISCHARG E CANALW ATER ELEVATIO N 570' (APPROX)STRUCTURALFILL FIGURE 6-7SHALLOW WATER LEVEL MAPMARCH 2017ALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAG ER: C. SUTTELLCHECKED BY: L. DRAGO DAT E: 01 /26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Fig06-07 to 06-12 Water Level Maps_v2.mxd 425 0 425 850212.5 GRAPHIC SCALE IN FEET NOT ES:WAT ER L EVELS COLLECTED MARCH 27, 2017. NM - NOT MEA SURED DURING 2 4-HOUR WATER LEVEL EVENT. NATU RAL RESOURCES T ECHNICAL REPORT (NRTR) PREPARED BY AMEC FOSTERWHEELER, INC., MAY 29, 2015. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFELCT INFORMATION AVAILABLE UPTO DECEMBER 31,2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. ELEVATIONS ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM 88(NAVD 88). AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.IMAGE COLLECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). LE GEND &< MONITORI NG WEL L I N ASH PORE WATERELEVATION IN FEET (NAVD 88) &< MONITORI NG WELLELEVATION IN FEET (NAVD 88) &< BACKGROUND MON ITORING WELLELEVATION IN FEET (NAVD 88) WATER SUPPLY WELL WATER LEVEL CONTO UR IN FEET (NAVD 88) INFERR ED WATER LEVEL CON TOUR IN FEET (NAVD 88)INTERMEDIATE WATER LEVEL CONTOURIN FEET (N AVD 88) <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) ABANDO NED WELLMW-101* GROUND WATER FL OW DIRECTION LANDFILL BOUNDARY ASH BASIN WASTE BOUNDARY DUKE ENERGY CAROL INAS ALLEN PLANTSITE BOUNDARY LANDFILL CO MPLI ANCE BOUNDARY INACTI VE ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DORS FILL S BOUNDARIES &< &< &< &< &< &< &< &< &< &< &< &< &<&<&< &<&< &<&< &< &< &< &< &<&<&< &<&< &< &< &< &<&< &< &< &< &< &< &<&< &< &< &<&< &<&< &< &< &< &< &<&< &< &< &< &< AB-4D639.21 AB-14D627.15 AB-20D637.48 AB-21D636.57 AB-23BRU624.56 AB-24D632.96 AB-25BRU636.84 AB-27D639.70AB-28D629.77 AB-29D614.06AB-30D620.06 AB-33D595.06 AB-34D611.34 AB-35D620.96 AB-36D623.03 AB-37D624.84 AB-38D624.80 AB-39D618.34 BG-1DANM GWA -9D637.72 GWA -14D*627.76GWA-14DANM GWA -19D626.75 GWA -21D*635.57 GWA -21DANM GWA -23D638.81 GWA -24D636.07 BG-2D587.16 AB-12D639.83 AB-13D638.63 BG-3D606.92 BG-1D*635.47 BG-4D574.01 GWA -16D603.30 GWA -22D631.89 GWA -26D636.43 AB-9D569.10 AB-10D566.79 AB-11D611.26 AB-22D600.01 AB-26D584.53 AB-31D579.54 AB-32D577.51 GWA -1D616.75 GWA -2D575.36 GWA -3D574.81 GWA -4D572.05 GWA -5D571.92 GWA -7D577.92 GWA -6D*NM GWA -6DA597.81 AB-2D623.76 GWA -8D610.65 GWA -15D627.22 GWA -17D616.23 GWA -18D624.47590 590600600 590 5 8 0 570 6106205806005806205905805706106306 3 0 63060063863863 86 3 8 638ACTIVEASH BASIN RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612INACTIVEASH BASIN ASHSTORAGE ASHSTORAGE CATAW BA RIVER(LAKE WYLIE)WATER ELEVATION565' (APPROX)DISCHARG E CANALW ATER ELEVATIO N 570' (APPROX)STRUCTURALFILL FIGURE 6-8DEEP WATER LEVEL MAPMARCH 2017ALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAG ER: C. SUTTELLCHECKED BY: L. DRAGO DAT E: 01 /26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Fig06-07 to 06-12 Water Level Maps_v2.mxd 425 0 425 850212.5 GRAPHIC SCALE IN FEET NOT ES:WAT ER L EVELS COLLECTED MARCH 27, 2017. NM - NOT MEA SURED DURING 2 4-HOUR WATER LEVEL EVENT. NATU RAL RESOURCES T ECHNICAL REPORT (NRTR) PREPARED BY AMEC FOSTERWHEELER, INC., MAY 29, 2015. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFELCT INFORMATION AVAILABLE UPTO DECEMBER 31,2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. ELEVATIONS ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM 88(NAVD 88). AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.IMAGE COLLECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). LE GEND &< MONITORI NG WEL L I N ASH PORE WATERELEVATION IN FEET (NAVD 88) &< MONITORI NG WELLELEVATION IN FEET (NAVD 88) &< BACKGROUND MON ITORING WELLELEVATION IN FEET (NAVD 88) WATER SUPPLY WELL WATER LEVEL CONTO UR IN FEET (NAVD 88) INFERR ED WATER LEVEL CON TOUR IN FEET (NAVD 88)INTERMEDIATE WATER LEVEL CONTOURIN FEET (N AVD 88) <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) ABANDO NED WELLMW-101* GROUND WATER FL OW DIRECTION LANDFILL BOUNDARY ASH BASIN WASTE BOUNDARY DUKE ENERGY CAROL INAS ALLEN PLANTSITE BOUNDARY LANDFILL CO MPLI ANCE BOUNDARY INACTI VE ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DORS FILL S BOUNDARIES &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &<&< &< &< &<&< &< AB-21BR636.56 AB-25BR636.71 AB-35BR621.11 AB-14BR627.35 AB-21BRL636.32 AB-24BR636.05 AB-27BRNM AB-38BR613.38 BG-2BR*586.50 BG-2BRA2NM GWA -9BR637.71GWA-24BR634.94 BG-4BR573.63 GWA -21BR634.93 GWA -1BRNM AB-22BR600.31 GWA -6BR*588.81 GWA -3BR*574.57 GWA -3BRANM GWA -4BR571.94 GWA -5BR*571.97 GWA -5BRANM AB-4BR639.22 AB-22BRLNM GWA -6BRANM 5806 2 0600580 580620600580 6 3 0 630 610610590570 570590637 637 ACTIVEASH BASIN RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612INACTIVEASH BASIN ASHSTORAGE ASHSTORAGE CATAW BA RIVER(LAKE WYLIE)WATER ELEVATION565' (APPROX)DISCHARG E CANALW ATER ELEVATIO N 570' (APPROX)STRUCTURALFILL FIGURE 6-9BEDROCK WATER LEVEL MAPMARCH 2017ALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAG ER: C. SUTTELLCHECKED BY: L. DRAGO DAT E: 01 /26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Fig06-07 to 06-12 Water Level Maps_v2.mxd 425 0 425 850212.5 GRAPHIC SCALE IN FEET NOT ES:WAT ER L EVELS COLLECTED MARCH 27, 2017. NM - NOT MEA SURED DURING 2 4-HOUR WATER LEVEL EVENT. NATU RAL RESOURCES T ECHNICAL REPORT (NRTR) PREPARED BY AMEC FOSTERWHEELER, INC., MAY 29, 2015. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFELCT INFORMATION AVAILABLE UPTO DECEMBER 31,2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. ELEVATIONS ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM 88(NAVD 88). AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.IMAGE COLLECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). LE GEND &< MONITORI NG WEL L I N ASH PORE WATERELEVATION IN FEET (NAVD 88) &< MONITORI NG WELLELEVATION IN FEET (NAVD 88) &< BACKGROUND MON ITORING WELLELEVATION IN FEET (NAVD 88) WATER SUPPLY WELL WATER LEVEL CONTO UR IN FEET (NAVD 88) INFERR ED WATER LEVEL CON TOUR IN FEET (NAVD 88)INTERMEDIATE WATER LEVEL CONTOURIN FEET (N AVD 88) <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) ABANDO NED WELLMW-101* GROUND WATER FL OW DIRECTION LANDFILL BOUNDARY ASH BASIN WASTE BOUNDARY DUKE ENERGY CAROL INAS ALLEN PLANTSITE BOUNDARY LANDFILL CO MPLI ANCE BOUNDARY INACTI VE ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DORS FILL S BOUNDARIES &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&< AB-38S623.10 AB-4S637.39 AB-20S637.86 AB-21S636.20 AB-21SL636.42 AB-23S637.80 AB-24S637.96 AB-24SL637.78 AB-25S640.10 AB-25SL637.39 AB-27S639.16AB-28S641.23 AB-29S613.39AB-29SL613.09AB-30S617.74 AB-33S599.64 AB-34S612.37 AB-35S621.36AB-36S620.57 AB-37S621.25 AB-39S617.50 GWA -9S635.67 GWA -14S627.11 GWA -24S*638.31 BG-2S590.34 AB-12S635.88 AB-13S637.11 BG-3S607.05 BG-1S634.71 BG-4S576.79 GWA -16S604.94 GWA -19S628.65 GWA -21S642.92 GWA -22S632.81 GWA -23S637.48 GWA -26S636.18 AB-1R620.34 AB-6A570.76AB-6R571.45 AB-9S570.51 AB-10S565.48AB-22S595.20 AB-26S582.04 AB-31S578.04 AB-32S583.53 AB-1NM GWA -1S615.70 GWA -2S570.81 GWA -3S571.05 GWA -4S571.61 GWA -5S568.53 GWA -6S597.25 GWA -7S583.23 AB-5636.56 AB-2622.06 GWA -8S607.36 GWA -15S626.16 GWA -8SANM GWA -17S616.65 GWA -18S622.03 GWA -24SANM590620590610630 6 0 0 6 4 0 640 610 620580580600 640570580590 600 610620630580590600570ACTIVEASH BASIN RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612INACTIVEASH BASIN ASHSTORAGE ASHSTORAGE CATAW BA RIVER(LAKE WYLIE)WATER ELEVATION565' (APPROX)DISCHARG E CANALW ATER ELEVATIO N 570' (APPROX)STRUCTURALFILL FIGURE 6-10SHALLOW WATER LEVEL MAPSEPTEMBER 2017ALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAG ER: C. SUTTELLCHECKED BY: L. DRAGO DAT E: 01 /26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Fig06-07 to 06-12 Water Level Maps_v2.mxd 425 0 425 850212.5 GRAPHIC SCALE IN FEET NOT ES:WAT ER L EVELS COLLECTED BY SEPTEMBER 11, 2017. NM - NOT MEA SURED DURING 2 4-HOUR WATER LEVEL EVENT. NATU RAL RESOURCES T ECHNICAL REPORT (NRTR) PREPARED BY AMEC FOSTERWHEELER, INC., MAY 29, 2015. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFELCT INFORMATION AVAILABLE UPTO DECEMBER 31,2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. ELEVATIONS ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM 88(NAVD 88). AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.IMAGE COLLECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). LE GEND &< MONITORI NG WEL L I N ASH PORE WATERELEVATION IN FEET (NAVD 88) &< MONITORI NG WELLELEVATION IN FEET (NAVD 88) &< BACKGROUND MON ITORING WELLELEVATION IN FEET (NAVD 88) WATER SUPPLY WELL WATER LEVEL CONTO UR IN FEET (NAVD 88) INFERR ED WATER LEVEL CON TOUR IN FEET (NAVD 88)INTERMEDIATE WATER LEVEL CONTOURIN FEET (N AVD 88) <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) ABANDO NED WELLMW-101* GROUND WATER FL OW DIRECTION LANDFILL BOUNDARY ASH BASIN WASTE BOUNDARY DUKE ENERGY CAROL INAS ALLEN PLANTSITE BOUNDARY LANDFILL CO MPLI ANCE BOUNDARY INACTI VE ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DORS FILL S BOUNDARIES &< &< &< &< &< &< &< &< &< &< &< &< &<&<&< &<&< &<&< &< &< &< &< &<&<&< &<&< &< &< &< &<&< &< &< &< &< &< &<&< &< &< &<&< &<&< &< &< &< &< &<&< &< &< &< &< AB-4D637.55 AB-14D625.17 AB-20D636.93 AB-21D636.61 AB-23BRU622.48 AB-24D636.03 AB-25BRU636.95 AB-27D618.52AB-28D630.01 AB-29D614.16AB-30D620.11 AB-33D593.54 AB-34D611.48 AB-35D620.60AB-36D620.97 AB-37D622.57 AB-38D622.60 AB-39D618.26 BG-1DA635.92 GWA -9D635.69 GWA -14D*NMGWA-14DA628.23 GWA -19D626.92 GWA -21D*NM GWA -21DA635.56 GWA -23D637.89 GWA -24D636.04 BG-2D588.53 AB-12D637.33 AB-13D637.24 BG-3D606.68 BG-1D*NM BG-4D573.69 GWA -16D603.21 GWA -22D632.26 GWA -26D636.22 AB-9D567.81 AB-10D565.42 AB-11D609.50 AB-22D600.35 AB-26D583.51 AB-31D579.12 AB-32D576.29 GWA -1D615.14 GWA -2D573.33 GWA -3D573.33 GWA -4D570.61 GWA -5D570.35 GWA -7D577.99 GWA -6D*NM GWA -6DA592.37 GWA -15D626.32 AB-2D622.23 GWA -8D609.83 GWA -17D615.91 GWA -18D622.11590 5906006005 9 0 6 0 0 5 8 0 570 6306106205806005806205905805706306106 3 7 637 6 3763 7 ACTIVEASH BASIN RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612INACTIVEASH BASIN ASHSTORAGE ASHSTORAGE CATAW BA RIVER(LAKE WYLIE)WATER ELEVATION565' (APPROX)DISCHARG E CANALW ATER ELEVATIO N 570' (APPROX)STRUCTURALFILL FIGURE 6-11DEEP WATER LEVEL MAPSEPTEMBER 2017ALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAG ER: C. SUTTELLCHECKED BY: L. DRAGO DAT E: 01 /26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Fig06-07 to 06-12 Water Level Maps_v2.mxd 425 0 425 850212.5 GRAPHIC SCALE IN FEET NOT ES:WAT ER L EVELS COLLECTED BY SEPTEMBER 11, 2017. NM - NOT MEA SURED DURING 2 4-HOUR WATER LEVEL EVENT. NATU RAL RESOURCES T ECHNICAL REPORT (NRTR) PREPARED BY AMEC FOSTERWHEELER, INC., MAY 29, 2015. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFELCT INFORMATION AVAILABLE UPTO DECEMBER 31,2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. ELEVATIONS ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM 88(NAVD 88). AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.IMAGE COLLECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). LE GEND &< MONITORI NG WEL L I N ASH PORE WATERELEVATION IN FEET (NAVD 88) &< MONITORI NG WELLELEVATION IN FEET (NAVD 88) &< BACKGROUND MON ITORING WELLELEVATION IN FEET (NAVD 88) WATER SUPPLY WELL WATER LEVEL CONTO UR IN FEET (NAVD 88) INFERR ED WATER LEVEL CON TOUR IN FEET (NAVD 88)INTERMEDIATE WATER LEVEL CONTOURIN FEET (N AVD 88) <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) ABANDO NED WELLMW-101* GROUND WATER FL OW DIRECTION LANDFILL BOUNDARY ASH BASIN WASTE BOUNDARY DUKE ENERGY CAROL INAS ALLEN PLANTSITE BOUNDARY LANDFILL CO MPLI ANCE BOUNDARY INACTI VE ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DORS FILL S BOUNDARIES &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &<&< &< &< &<&< &< AB-21BR636.54 AB-25BR636.92 AB-35BR621.43 AB-14BR625.41 AB-21BRL636.35 AB-24BR636.17 AB-27BR620.58 AB-38BR611.11 BG-2BR*NM BG-2BRA2584.31 GWA -9BR635.83GWA-24BR634.65 BG-4BR573.23 GWA -21BR635.16 GWA -1BR615.06 AB-22BR599.49 GWA -6BR*588.27 GWA -3BR*NM GWA -3BRA573.56 GWA -4BR571.84 GWA -5BR*NM GWA -5BRA570.27 AB-4BR638.32 GWA -6BRANM AB-22BRLNM 6 3 0 6 3 0580 580 620600580580620600570570 590590 610610637 637590 590ACTIVEASH BASIN RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612INACTIVEASH BASIN ASHSTORAGE ASHSTORAGE CATAW BA RIVER(LAKE WYLIE)WATER ELEVATION565' (APPROX)DISCHARG E CANALW ATER ELEVATIO N 570' (APPROX)STRUCTURALFILL FIGURE 6-12BEDROCK WATER LEVEL MAPSEPTEMBER 2017ALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAG ER: C. SUTTELLCHECKED BY: L. DRAGO DAT E: 01 /26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Fig06-07 to 06-12 Water Level Maps_v2.mxd 425 0 425 850212.5 GRAPHIC SCALE IN FEET NOT ES:WAT ER L EVELS COLLECTED BY SEPTEMBER 11, 2017. NM - NOT MEA SURED DURING 2 4-HOUR WATER LEVEL EVENT. NATU RAL RESOURCES T ECHNICAL REPORT (NRTR) PREPARED BY AMEC FOSTERWHEELER, INC., MAY 29, 2015. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFELCT INFORMATION AVAILABLE UPTO DECEMBER 31,2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. ELEVATIONS ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM 88(NAVD 88). AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.IMAGE COLLECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). LE GEND &< MONITORI NG WEL L I N ASH PORE WATERELEVATION IN FEET (NAVD 88) &< MONITORI NG WELLELEVATION IN FEET (NAVD 88) &< BACKGROUND MON ITORING WELLELEVATION IN FEET (NAVD 88) WATER SUPPLY WELL WATER LEVEL CONTO UR IN FEET (NAVD 88) INFERR ED WATER LEVEL CON TOUR IN FEET (NAVD 88)INTERMEDIATE WATER LEVEL CONTOURIN FEET (N AVD 88) <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) ABANDO NED WELLMW-101* GROUND WATER FL OW DIRECTION LANDFILL BOUNDARY ASH BASIN WASTE BOUNDARY DUKE ENERGY CAROL INAS ALLEN PLANTSITE BOUNDARY LANDFILL CO MPLI ANCE BOUNDARY INACTI VE ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DORS FILL S BOUNDARIES <<<<<<< < &< &< &< &< &< &< &< &< &< &<&<&< &<&< &<&< &< &< &< &< &<&<&< &<&< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< ACTIVE ASH BASIN INACTIVE ASH BASIN ASH STORAGE ASH STORAGE STRUCTURAL FILL RETIRED ASH BASIN ASH LANDFILL PERMIT NO. 3612 CATAWBA RIVER (LAKE WYLIE) D IS C H A R G E C A N A L POWER PLANT BELL POST RDHIGHLAND PLCADMAN CTJOHN DOUGLAS DRDA N A M I C H E LL E C TSHADYCREEK CTMICHAELDOMINICK DRF O R E S T B A Y C T WARREN DR LAKEHILL CTIDLEWOODLN2651COLCHESTERCTAPPLEWOODPOI NT LNL A K E B R E E Z E L N MITCHELL STH IG H L A N D WAY G O R D O N L N 2798THE HOTHOLE RDW OO D B E ND D R M I D W O O D L N LAKESIDE CIR FA RM R DTUCKER R D BASI L DRH E AT H E R G L E N L NLAKEFRONT DRO L D S P R I N G R D SHOREW OOD PLPENI NSULA DRT A N G L E W O O D C O V E W ILD LI FE R DLAKE MI ST DREGRET RIDG EELLI NGTON RDWATERVI EW DRCYPRUS RD RIVER RUN W I N G P O I N T D RQUIET WATERS RDR E E S E W I L S O N R DLAKE FRONT DRPLANT ALLEN RD S POINT RDCANAL RDSOUTHPOINT RDA R M S T R O N G R D LOW ER ARMSTRONG RDAB-04S to AB-04D -0.006 AB-09S to AB-09D 0.025 AB-10S to AB-10D 0.001 AB-12S to AB-12D -0.019 AB-13S to AB-13D -0.002 AB-20S to AB-20D 0.008 AB-21S to AB-21D -0.003 AB-22S to AB-22D -0.074 AB-23S to AB-23BRU 0.174 AB-24S to AB-24D 0.019 AB-25S to AB-25BRU 0.032 AB-26S to AB-26D -0.014 AB-27S to AB-27D 0.212AB-28S to AB-28D 0.076 AB-29S to AB-29D -0.008 AB-30S to AB-30D -0.019 AB-31S to AB-31D -0.016 AB-32S to AB-32D 0.121 AB-33S to AB-33D 0.067 AB-34S to AB-34D 0.003 AB-35S to AB-35D 0.010 AB-36S to AB-36D -0.005 AB-37S to AB-37D -0.025 AB-38S to AB-38D 0.009 AB-39S to AB-39D -0.016 BG-01S to BG-01DA -0.016 BG-02S to BG-02D 0.037 BG-03S to BG-03D 0.020 BG-04S to BG-04D 0.134 GWA-01S to GWA-01D 0.008 GWA-02S to GWA-02D -0.025 GWA-03S to GWA-03D -0.018 GWA-04S to GWA-04D 0.012 GWA-05S to GWA-05D -0.019 GWA-06S to GWA-06DA 0.054 GWA-07S to GWA-07D 0.046 GWA-08S to GWA-08D -0.035 GWA-09S to GWA-09D 0.000 GWA-14S to GWA-14DA -0.014 GWA-15S to GWA-15D -0.003 GWA-16S to GWA-16D 0.034 GWA-17S to GWA-17D 0.017 GWA-18S to GWA-18D -0.003 GWA-19S to GWA-19D 0.022 GWA-21S to GWA-21DA 0.049 GWA-22S to GWA-22D 0.004 GWA-23S to GWA-23D -0.008 GWA-24S to GWA-24D 0.024 GWA-26S to GWA-26D -0.001 NOTES: WATER LEVELS WERE COLLECTED SEPTEMBER 11, 2017. SURFACE/CONTOUR DATA TRUNCATED AT EXTENT OF SAMPLING DATA. DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON OCTOBER 11, 2017. IMAGE COLLECTED ON OCTOBER 8, 2016. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 6-13 POTENTIAL VERTICAL GRADIENT BETWEEN SHALLOW AND DEEP ZONES ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINADRAWN BY: B. YOUNG PROJECT MANAGER: C. SUTTELL CHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Fig06-13 - Potential Vertical Gradient.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANT SITE BOUNDARY <STREAM (AMEC NRTR 2015) LEGEND POTENTIAL VERTICAL GRADIENT UPWARD: -0.073 DOWNWARD : 0.212 0 POTENTIAL VERTICAL GRADIENT (foot per foot)1 Well ID Potential Vertical Gradient Direction AB-04S to AB-04D -0.006 Upward AB-09S to AB-09D 0.025 Downward AB-10S to AB-10D 0.001 Downward AB-12S to AB-12D -0.019 Upward AB-13S to AB-13D -0.002 Upward AB-20S to AB-20D 0.008 Downward AB-21S to AB-21D -0.003 Upward AB-22S to AB-22D -0.074 Upward AB-23S to AB-23BRU 0.174 Downward AB-24S to AB-24D 0.019 Downward AB-25S to AB-25BRU 0.032 Downward AB-26S to AB-26D -0.014 Upward AB-27S to AB-27D 0.212 Downward AB-28S to AB-28D 0.076 Downward AB-29S to AB-29D -0.008 Upward AB-30S to AB-30D -0.019 Upward AB-31S to AB-31D -0.016 Upward AB-32S to AB-32D 0.121 Downward AB-33S to AB-33D 0.067 Downward AB-34S to AB-34D 0.003 Downward AB-35S to AB-35D 0.010 Downward AB-36S to AB-36D -0.005 Upward AB-37S to AB-37D -0.025 Upward AB-38S to AB-38D 0.009 Downward AB-39S to AB-39D -0.016 Upward BG-01S to BG-01DA -0.016 Upward BG-02S to BG-02D 0.037 Downward BG-03S to BG-03D 0.020 Downward BG-04S to BG-04D 0.134 Downward GWA-01S to GWA-01D 0.008 Downward GWA-02S to GWA-02D -0.025 Upward GWA-03S to GWA-03D -0.018 Upward GWA-04S to GWA-04D 0.012 Downward GWA-05S to GWA-05D -0.019 Upward GWA-06S to GWA-06DA 0.054 Downward GWA-07S to GWA-07D 0.046 Downward GWA-08S to GWA-08D -0.035 Upward GWA-09S to GWA-09D 0.000 Upward GWA-14S to GWA-14DA -0.014 Upward GWA-15S to GWA-15D -0.003 Upward GWA-16S to GWA-16D 0.034 Downward GWA-17S to GWA-17D 0.017 Downward GWA-18S to GWA-18D -0.003 Upward GWA-19S to GWA-19D 0.022 Downward GWA-21S to GWA-21DA 0.049 Downward GWA-22S to GWA-22D 0.004 Downward GWA-23S to GWA-23D -0.008 Upward GWA-24S to GWA-24D 0.024 Downward GWA-26S to GWA-26D -0.001 Upward Shallow to Deep <<<<<<< < &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< ACTIVE ASH BASIN INACTIVE ASH BASIN ASH STORAGE ASH STORAGE STRUCTURAL FILL RETIRED ASH BASIN ASH LANDFILL PERMIT NO. 3612 CATAWBA RIVER (LAKE WYLIE) D IS C H A R G E C A N A L POWER PLANT BELL POST RDHIGHLAND PLCADMAN CTJOHN DOUGLAS DRDA N A M I C H E LL E C TSHADYCREEK CTMICHAELDOMINICK DRF O R E S T B A Y C T WARREN DR LAKEHILL CTIDLEWOODLN2651COLCHESTERCTAPPLEWOODPOI NT LNL A K E B R E E Z E L N MITCHELL STH IG H L A N D WAY G O R D O N L N 2798THE HOTHOLE RDW OO D B E ND D R S O U T H P O IN T D R M I D W O O D L N LAKESIDE CIR FA RM R DTUCKER R D BASI L DRH E AT H E R G L E N L NLAKEFRONT DRO L D S P R I N G R D SHOREW OOD PLPENI NSULA DRT A N G L E W O O D C O V E W ILD LI F E R DLAKE MI ST DREGRET RIDG EELLI NGTON RDWATERVI EW DRCYPRUS RD RIVER RUN W I N G P O I N T D RQUIET WATERS RDR E E S E W I L S O N R DLAKE FRONT DRPLANT ALLEN RD S POINT RDCANAL RDSOUTHPOINT RDA R M S T R O N G R D LOW ER ARMSTRONG RDAB-04S to AB-04BR -0.014 AB-21S to AB-21BR -0.002 AB-22S to AB-22BR -0.038 AB-24S to AB-24BR 0.013 AB-25S to AB-25BR 0.024 AB-27S to AB-27BR 0.109 AB-35S to AB-35BR 0.000 AB-38S to AB-38BR 0.005 BG-02S to BG-02BRA2 0.080 BG-04S to BG-04BR 0.046 GWA-01S to GWA-01BR 0.006 GWA-03S to GWA-03BRA -0.016 GWA-04S to GWA-04BR -0.002 GWA-05S to GWA-05BRA -0.014 GWA-06S to GWA-06BR 0.064 GWA-09S to GWA-09BR -0.001 GWA-21S to GWA-21BR 0.046 GWA-24S to GWA-24BR 0.027 NOTES: WATER LEVELS WERE COLLECTED SEPTEMBER 11, 2017. SURFACE/CONTOUR DATA TRUNCATED AT EXTENT OF SAMPLING DATA. DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON OCTOBER 11, 2017. IMAGE COLLECTED ON OCTOBER 8, 2016. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 6-14 POTENTIAL VERTICAL GRADIENT BETWEEN SHALLOW AND BEDROCK ZONES ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINADRAWN BY: B. YOUNG PROJECT MANAGER: C. SUTTELL CHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Fig06-14 - Potential Vertical Gradient.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANT SITE BOUNDARY <STREAM (AMEC NRTR 2015) LEGEND POTENTIAL VERTICAL GRADIENT UPWARD: -0.073 DOWNWARD : 0.212 0 POTENTIAL VERTICAL GRADIENT (foot per foot)1 Well ID Potential Vertical Gradient Direction AB-04S to AB-04BR -0.014 Upward AB-21S to AB-21BR -0.002 Upward AB-22S to AB-22BR -0.038 Upward AB-24S to AB-24BR 0.013 Downward AB-25S to AB-25BR 0.024 Downward AB-27S to AB-27BR 0.109 Downward AB-35S to AB-35BR 0.000 Upward AB-38S to AB-38BR 0.005 Downward BG-02S to BG-02BRA2 0.080 Downward BG-04S to BG-04BR 0.046 Downward GWA-01S to GWA-01BR 0.006 Downward GWA-03S to GWA-03BRA -0.016 Upward GWA-04S to GWA-04BR -0.002 Upward GWA-05S to GWA-05BRA -0.014 Upward GWA-06S to GWA-06BR 0.064 Downward GWA-09S to GWA-09BR -0.001 Upward GWA-21S to GWA-21BR 0.046 Downward GWA-24S to GWA-24BR 0.027 Downward Shallow to Bedrock <<<<<<< < &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< ACTIVE ASH BASIN INACTIVE ASH BASIN ASH STORAGE ASH STORAGE STRUCTURAL FILL RETIRED ASH BASIN ASH LANDFILL PERMIT NO. 3612 CATAWBA RIVER (LAKE WYLIE) D IS C H A R G E C A N A L POWER PLANT BELL POST RDHIGHLAND PLCADMAN CTJOHN DOUGLAS DRDA N A M I C H E LL E C TSHADYCREEK CTMICHAELDOMINICK DRF O R E S T B A Y C T WARREN DR LAKEHILL CT2651COLCHESTERCTAPPLEWOODPOI NT LNL A K E B R E E Z E L N MITCHELL STHI GH LA N D WAY G O R D O N L N 2798THE HOTHOLE RDW OO D B E ND D R S O U T H P O I N T D R M I D W O O D L N LAKESIDE CIR F A R M R DTUCKER R D BASI L DRH E AT H E R G L E N L NLAKEFRONT DRO L D S P R I N G R D SHOREW OOD PLPENI NSULA DRT A N G L E W O O D C O V E W ILD LI F E R DLAKE MI ST DREGRET RIDG EELLI NGTON RDWATERVI EW DRCYPRUS RD RIVER RUN W I N G P O I N T D RQUIET WATERS RDR E E S E W I L S O N R DLAKE FRONT DRPLANT ALLEN RD S POINT RDCANAL RDSOUTHPOINT RDA R M S T R O N G R D LOW ER ARMSTRONG RDAB-04D to AB-04BR -0.021 AB-14D to AB-14BR -0.003 AB-21D to AB-21BR 0.003 AB-22D to AB-22BR 0.020 AB-24D to AB-24BR -0.003 AB-25BRU to AB-25BR 0.001 AB-27D to AB-27BR -0.028 AB-35D to AB-35BR -0.013 AB-38D to AB-38BR -0.001 BG-02D to BG-02BRA2 0.159 BG-04D to BG-04BR 0.009 GWA-01D to GWA-01BR 0.002 GWA-03D to GWA-03BRA -0.007 GWA-04D to GWA-04BR -0.023 GWA-05D to GWA-05BRA 0.003 GWA-06DA to GWA-06BR 0.079 GWA-09D to GWA-09BR -0.004 GWA-21DA to GWA-21BR 0.019 GWA-24D to GWA-24BR 0.037 NOTES: WATER LEVELS WERE COLLECTED SEPTEMBER 11, 2017. SURFACE/CONTOUR DATA TRUNCATED AT EXTENT OF SAMPLING DATA. DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON OCTOBER 11, 2017. IMAGE COLLECTED ON OCTOBER 8, 2016. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 6-15 POTENTIAL VERTICAL GRADIENT BETWEEN DEEP AND BEDROCK ZONES ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINADRAWN BY: B. YOUNG PROJECT MANAGER: C. SUTTELL CHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Fig06-15 - Potential Vertical Gradient.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANT SITE BOUNDARY <STREAM (AMEC NRTR 2015) LEGEND POTENTIAL VERTICAL GRADIENT UPWARD: -0.073 DOWNWARD : 0.212 0 POTENTIAL VERTICAL GRADIENT (foot per foot)1 Well ID Potential Vertical Gradient Direction AB-04D to AB-04BR -0.021 Upward AB-14D to AB-14BR -0.003 Upward AB-21D to AB-21BR 0.003 Downward AB-22D to AB-22BR 0.020 Downward AB-24D to AB-24BR -0.003 Upward AB-25BRU to AB-25BR 0.001 Downward AB-27D to AB-27BR -0.028 Upward AB-35D to AB-35BR -0.013 Upward AB-38D to AB-38BR -0.001 Upward BG-02D to BG-02BRA2 0.159 Downward BG-04D to BG-04BR 0.009 Downward GWA-01D to GWA-01BR 0.002 Downward GWA-03D to GWA-03BRA -0.007 Upward GWA-04D to GWA-04BR -0.023 Upward GWA-05D to GWA-05BRA 0.003 Downward GWA-06DA to GWA-06BR 0.079 Downward GWA-09D to GWA-09BR -0.004 Upward GWA-21DA to GWA-21BR 0.019 Downward GWA-24D to GWA-24BR 0.037 Downward Deep to Bedrock NOTES: 1.BASE MAP FROM USGS BELMONT N.C.-S.C. AND CHARLOTTE WEST, N.C. 7.5-MINUTE TOPOGRAPHIC QUADRANGLES TOPOGRAPHIC LINEAMENTS AND ROSE DIAGRAM DUKE ENERGY CAROLINAS, LLC ALLEN STEAM STATION ASH BASIN GASTON COUNTY, NORTH CAROLINA DATE AUGUST 2015 FIGURE 6-16 0 NOTES: 1.PHOTOMOSAIC OF RIVERBEND PERFORMED WITH A LIETZ SOKKIA MS-27 MIRROR STEREOSCOPE WITH MAGNIFYING BINOCULAR EYEPIECE 2.AERIAL PHOTOGRAPHY PROVIDED BY DUKE ENERGY (FROM WSP), 9X9 INCH GRAYSCALE CONTACT PRINTS, 1"=600", DATED 04/17/2014 Lineament identified from aerial photography interpretation 1000 2000 3000 Scale in Feet AERIAL PHOTOGRAPHY LINEAMENTS AND ROSE DIAGRAM DUKE ENERGY CAROLINAS, LLC ALLEN STEAM STATION ASH BASIN GASTON COUNTY, NORTH CAROLINA DATE AUGUST 2015 FIGURE 6-17 ! !! ( (( ! ! !! !! ! ! ! ! ! ! ! ! ! ! ! !! ! ! ( ( (( (( ( ( ( ( ( ( ( ( ( ( ( (( ( ( ! ! ! ! ! ! ! < < < < < < < ACTIVE ASH BASIN INACTIVE ASH BASIN CATAWBA RIVER (LAKE WYLIE) D IS C H A R G E C A N A L STRUCTURAL FILL POWER PLANT ASH STORAGE ASH STORAGE RETIRED ASH BASIN ASH LANDFILL PERMIT NO. 3612 STRUCTURAL FILL COI RESULT UNITS PBTV PSRG pH 3.6 j S.U.4.3 - 6.8 NE SULFATE 745 mg/kg 540 NE pH 3.8 j S.U.4.3 - 6.8 NE MANGANESE 1990 mg/kg 1786 65 SELENIUM 3.2 j mg/kg 2.1 2.1 SULFATE 1590 mg/kg 540 NE COI RESULT UNITS PBTV PSRG STRONTIUM 22.1 mg/kg 14.41 NE GWA-06D (88.5-105.5) GWA-06D (28.5-30) GWA-06D (33.5-35) COI RESULT UNITS PBTV PSRG COBALT 56.8 mg/kg 48.6 0.9 COI RESULT UNITS PBTV PSRG COBALT 82.3 mg/kg 48.6 0.9 AB-32S (33.5-35) AB-32S (13.5-15) COI RESULT UNITS PBTV PSRG SELENIUM 2.5 j mg/kg 2.1 2.1 COI RESULT UNITS PBTV PSRG pH 7.1 j S.U.4.3 - 6.8 NE COI RESULT UNITS PBTV PSRG STRONTIUM 17.5 mg/kg 14.41 NE GWA-05D (119-120) GWA-05D (2-4) GWA-05D (83.5-85) COI RESULT UNITS PBTV PSRG STRONTIUM 26.3 mg/kg 14.41 NE GWA-04D (58-65) COI RESULT UNITS PBTV PSRG CHROMIUM 24.2 mg/kg 20.42 3.8 AB-27D (23.5-25) COI RESULT UNITS PBTV PSRG STRONTIUM 25.8 mg/kg 14.41 NE COI RESULT UNITS PBTV PSRG pH 7.1 j S.U.4.3 - 6.8 NE GWA-03BR (147.5-147.5) GWA-03BR (58.5-60) COI RESULT UNITS PBTV PSRG STRONTIUM 14.7 mg/kg 14.41 NE GWA-02D (33.5-35) COI RESULT UNITS PBTV PSRG CHROMIUM 21.7 mg/kg 20.42 3.8 SELENIUM 3.4 j mg/kg 2.1 2.1 COI RESULT UNITS PBTV PSRG SELENIUM 3.5 j mg/kg 2.1 2.1 VANADIUM 136 mg/kg 132.2 6 COI RESULT UNITS PBTV PSRG pH 7.0 j S.U.4.3 - 6.8 NE STRONTIUM 18.1 mg/kg 14.41 NE COI RESULT UNITS PBTV PSRG STRONTIUM 15.3 mg/kg 14.41 NE GWA-01D (13.5-15) GWA-01D (68.5-70) GWA-01D (81-82) GWA-01D (8.5-10) COI RESULT UNITS PBTV PSRG pH 8.1 j S.U.4.3 - 6.8 NE CHROMIUM 22.5 mg/kg 20.42 3.8 MANGANESE 2360 mg/kg 1786 65 STRONTIUM 53.1 mg/kg 14.41 NE AB-25BR (143-143) COI RESULT UNITS PBTV PSRG pH 7.3 j S.U.4.3 - 6.8 NE STRONTIUM 18.5 mg/kg 14.41 NE AB-21BR (156-157)COI RESULT UNITS PBTV PSRG pH 7.0 j S.U.4.3 - 6.8 NE AB-22D (13-14.5) COI RESULT UNITS PBTV PSRG pH 4.0 j S.U.4.3 - 6.8 NE ARSENIC 15.2 mg/kg 3.7 5.8 SELENIUM 3.4 mg/kg 2.1 2.1 SULFATE 1650 mg/kg 540 NE SB-07 (8.5-10) COI RESULT UNITS PBTV PSRG pH 7 S.U.4.3 - 6.8 NE COI RESULT UNITS PBTV PSRG STRONTIUM 18.6 mg/kg 14.41 NE COI RESULT UNITS PBTV PSRG CHROMIUM 112 mg/kg 20.42 3.8 STRONTIUM 93.5 mg/kg 14.41 NE COI RESULT UNITS PBTV PSRG STRONTIUM 37.3 mg/kg 14.41 NE COI RESULT UNITS PBTV PSRG pH 7.5 S.U.4.3 - 6.8 NE STRONTIUM 20.1 mg/kg 14.41 NE GWA-15D (19-21) GWA-15D (29-31) GWA-15D (66-68) GWA-15D (9-11) GWA-15D (1.9-2) COI RESULT UNITS PBTV PSRG pH 8 S.U.4.3 - 6.8 NE AB-35BR (185-185) COI RESULT UNITS PBTV PSRG ARSENIC 39.8 mg/kg 3.7 5.8 SELENIUM 3.7 mg/kg 2.1 2.1 STRONTIUM 101 mg/kg 14.41 NE COI RESULT UNITS PBTV PSRG pH 4.2 S.U.4.3 - 6.8 NE AB-34D (14-14) AB-34D (34-34) COI RESULT UNITS PBTV PSRG pH 7.3 j S.U.4.3 - 6.8 NE STRONTIUM 31.5 mg/kg 14.41 NE AB-39D (53.5-55) COI RESULT UNITS PBTV PSRG pH 7.2 j S.U.4.3 - 6.8 NE GWA-07D (107-123) COI RESULT UNITS PBTV PSRG pH 7.0 j S.U.4.3 - 6.8 NE AB-22D (13-14.5) COI RESULT UNITS PBTV PSRG BARIUM 1420 mg/kg 233 580 COBALT 931 mg/kg 48.6 0.9 MANGANESE 19500 mg/kg 1786 65 MOLYBDENUM 22.7 mg/kg 4.6 NE SELENIUM 5 mg/kg 2.1 2.1 STRONTIUM 34.5 mg/kg 14.41 NE COI RESULT UNITS PBTV PSRG SELENIUM 2.5 j mg/kg 2.1 2.1 AB-25BRU (52.3-53.7) AB-25BRU (62.3-63.7) COI RESULT UNITS PBTV PSRG STRONTIUM 21.6 mg/kg 14.41 NE COI RESULT UNITS PBTV PSRG CHROMIUM 47.7 mg/kg 20.42 3.8 STRONTIUM 37.2 mg/kg 14.41 NE COI RESULT UNITS PBTV PSRG STRONTIUM 16.7 mg/kg 14.41 NE AB-28D (14-15.5) AB-28D (59.9-60.5) AB-28D (69-70.5) COI RESULT UNITS PBTV PSRG STRONTIUM 21.5 mg/kg 14.41 NE pH 7.3 j S.U.4.3 - 6.8 NE STRONTIUM 20 mg/kg 14.41 NE SB-06 (78.5-80) SB-06 (83.5-85) COI RESULT UNITS PBTV PSRG BORON 78.5 j mg/kg 23.4 45 IRON 73400 mg/kg 69316 150 STRONTIUM 46.9 mg/kg 14.41 NE VANADIUM 191 mg/kg 132.2 6 SB-02 (33.5-35) ARSENIC 36 mg/kg 3.7 5.8 STRONTIUM 106 mg/kg 14.41 NE CHROMIUM 20.7 mg/kg 20.42 3.8 SB-08 (33.5-35) SB-08 (43.5-45) STRONTIUM 19.4 mg/kg 14.41 NE SB-09 (53.5-60) COI RESULT UNITS PBTV PSRG pH 6.9 j S.U.4.3 - 6.8 NE STRONTIUM 16.3 mg/kg 14.41 NE AB-37D (20-23) COI RESULT UNITS PBTV PSRG BORON 45.7 mg/kg 23.4 45 CHROMIUM 31.1 mg/kg 20.42 3.8 COI RESULT UNITS PBTV PSRG pH 3.9 S.U.4.3 - 6.8 NE BORON 63.4 mg/kg 23.4 45 CHROMIUM 94.6 mg/kg 20.42 3.8 SELENIUM 4.7 j mg/kg 2.1 2.1 SULFATE 692 mg/kg 540 NE SB-04 (25-26.5) SB-04 (30-31.5) COI RESULT UNITS PBTV PSRG ARSENIC 8.4 mg/kg 3.7 5.8 STRONTIUM 22.5 mg/kg 14.41 NE COI RESULT UNITS PBTV PSRG pH 7.1 j S.U.4.3 - 6.8 NE SELENIUM 7 mg/kg 2.1 2.1 SB-03 (43.5-45) SB-03 (53.5-55) COI RESULT UNITS PBTV PSRG CHROMIUM 47.3 mg/kg 20.42 3.8 COI RESULT UNITS PBTV PSRG CHROMIUM 48.8 mg/kg 20.42 3.8 COI RESULT UNITS PBTV PSRG pH 7.1 S.U.4.3 - 6.8 NE CHROMIUM 28.7 mg/kg 20.42 3.8 STRONTIUM 38.6 mg/kg 14.41 NE GWA-8D (88.5-90) GWA-8D (48.5-50) GWA-08D (38.5-40) COI RESULT UNITS PBTV PSRG pH 7.7 S.U.4.3 - 6.8 NE ARSENIC 10.3 mg/kg 3.7 5.8 SELENIUM 11.6 mg/kg 2.1 2.1 STRONTIUM 63.6 mg/kg 14.41 NE COI RESULT UNITS PBTV PSRG BORON 47.6 mg/kg 23.4 45 CHROMIUM 20.8 mg/kg 20.42 3.8 SB-05 (38.5-40) SB-05 (43.5-45) COI RESULT UNITS PBTV PSRG pH 6.9 j S.U.4.3 - 6.8 NE STRONTIUM 16.3 mg/kg 14.41 NE AB-37D (20-23) COI RESULT UNITS PBTV PSRG pH 7.2 j S.U.4.3 - 6.8 NE ARSENIC 44.5 mg/kg 3.7 5.8 STRONTIUM 176 mg/kg 14.41 NE COI RESULT UNITS PBTV PSRG pH 7 j S.U.4.3 - 6.8 NE STRONTIUM 17.5 mg/kg 14.41 NE COI RESULT UNITS PBTV PSRG pH 7 j S.U.4.3 - 6.8 NE CHROMIUM 103 mg/kg 20.42 3.8 STRONTIUM 52.3 mg/kg 14.41 NE SB-01 (3-5) SB-01 (43.5-45) SB-01 (48.5-50) W HITE IBIS CT DA N A M IC H E L LE C TSHADY CREEK CTMICHAEL DOMINICK DRTU CKERR D G O R D O N L N W OO D B END D R FA R M R D BASI L DRO L D S P R I N G R D SHOREW OOD PLEL LINGTO N RDTANGLEWOOD C O VELAKEMI ST DRW A T E R VIE W D RCYPRUS RDW I N G P O I N T D R EGRET RIDG ECANAL RDARMSTRONG RDLOW ER ARMSTRONG RDS POINT RDNOTES: PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. NATURAL RESOURCES TECHNICAL REPORT (NRTR) PREPARED BY AMEC FOSTER WHEELER, INC., MAY 29, 2015. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON OCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). FIGURE 7-1 POTENTIAL SECONDARY SOURCE SOIL ANALYTICAL RESULTS ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINADRAWN BY: B. YOUNG PROJECT MANAGER: C. SUTTELL CHECKED BY: L. DRAGO DATE: 01/16/2018 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Fig07-01 - Secondary Soil Results.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANT SITE BOUNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND SATURATED SOIL SAMPLE LOCATION AND DEPTH (FEET BELOW GROUND SURFACE)!( MIX OF UNSATURATED AND SATURATED SOIL SAMPLES AT LOCATION AND DEPTH (FEET BELOW GROUND SURFACE) !< UNSATURATED SOIL SAMPLE LOCATION AND DEPTH (FEET BELOW GROUND SURFACE)!( FIGURE 9-1 PIPER DIAGRAM – AOW AND SURFACE WATER ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: T. PLATING PROJECT MANAGER: C. SUTTELL LAYOUT: E. KINSEY DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment \CSAs\2018-01 CSA Update\Final\Figures\Figure 9-1 Piper AOW and SW.pdf Location ID Notes: Orange– Areas of Wetness Purple–Surface Water Green–Ponded Water Within Ash Basin Data with charge balance >10% are omitted from plot. Data included for analysis up to September 2017. Data represent samples with pH < 8.5 and turbidity < 10. Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Generally characteristic of background groundwater conditions Generally characteristic of ash pore water Lake Wylie (Catawba River) Free Water in Ash basin A Active Ponded 1 I ANIN001 B ANSP005 J ANSW-015 C ANTD001 K ANWW-001 L ANWW-003 E ANWW-004 M Pipe-RAB-CMP G S-01 O S-02 H S-03 P S-04 H S-05 A S-06 I S-07 B S-08 J S-08B C S-10 K Tower-0.3m I SW-01 M SW-02 O SW-03 J SW-04 P SW-05 L SW-06 k SW-07 s SW-08 u SW-D1 z SW-U1 FIGURE 10-1 PIPER DIAGRAM – BACKGROUND AND UPGRADIENT WELLS ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: E. KINSEY PROJECT MANAGER: C. SUTTELL LAYOUT: E. KINSEY DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support \Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 10-1 Piper Background and Upgradient.pdf Well ID Notes: Grey– NCDEQ – Accepted background well Black – Proposed additional background well Data with charge balance >10% are omitted from plot. Data included for analysis up to September 2017. Data represent samples with pH < 8.5 and turbidity < 10. Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Generally characteristic of background groundwater conditions GWA-26D GWA-23S AB-12S GWA-21S IAB-12D JAB-12S ABG-01S KBG-02BRA-2 BBG-02D LBG-02S LBG-03D MBG-03S CBG-04BR DBG-04D EBG-04S OGWA-16D PGWA-16S GGWA-19S HGWA-21BR jGWA-21DA IGWA-21S JGWA-23S KGWA-26D LGWA-26S FIGURE 10-2 PIPER DIAGRAM – SHALLOW FLOW LAYER ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: E. KINSEY PROJECT MANAGER: C. SUTTELL LAYOUT: E. KINSEY DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment \CSAs\2018-01 CSA Update\Final\Figures\Figure 10-2 Piper Shallow.pdf Well ID Notes: Blue– Upgradient or sidegradient well Green– Downgradient well Data with charge balance >10% are omitted from plot. Data included for analysis up to September 2017. Data represent samples with pH < 8.5 and turbidity < 10. Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Generally characteristic of background groundwater conditions Generally characteristic of ash pore water I AB-01R I AB-04S I AB-05 J AB-06A K AB-06R L AB-10S M AB-22S O AB-26S P AB-31S C AB-36S D GWA-01S C GWA-02S E GWA-03S G GWA-04S K GWA-07S G GWA-08S L GWA-09S M GWA-14S H GWA-15S I GWA-17S J GWA-18S G GWA-22S FIGURE 10-3 PIPER DIAGRAM – DEEP FLOW LAYER ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: E. KINSEY PROJECT MANAGER: C. SUTTELL LAYOUT: E. KINSEY DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support \Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 10-3 Piper Deep.pdf Well ID Notes: Blue– Upgradient or sidegradient well Green– Downgradient well Data with charge balance >10% are omitted from plot. Data included for analysis up to September 2017. Data represent samples with pH < 8.5 and turbidity < 10. Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Generally characteristic of background groundwater conditions Generally characteristic of ash pore water AAB-02D HAB-09D IAB-10D OAB-11D LAB-13D AAB-14D PAB-20D GAB-22D LAB-26D BAB-27D EAB-29D KAB-30D JAB-32D LAB-33D DAB-34D GAB-36D L AB-38D P AB-39D E GW A-01D O GWA-02D P GWA-03D M GWA-04D O GWA-05D I GWA-07D DGWA-08D CGWA-09D AB-14D kGW A-14DA jGWA-15D pGWA-17D tGWA-18D oGWA-22D lGWA-24D FIGURE 10-4 PIPER DIAGRAM – BEDROCK FLOW LAYER ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: E. KINSEY PROJECT MANAGER: C. SUTTELL LAYOUT: E. KINSEY DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment \CSAs\2018-01 CSA Update\Final\Figures\Figure 10-4 Piper Bedrock.pdf Well ID Notes: Blue– Upgradient or sidegradient well Green– Downgradient well Data with charge balance >10% are omitted from plot. Data included for analysis up to September 2017. Data represent samples with pH < 8.5 and turbidity < 10. Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Generally characteristic of background groundwater conditions Generally characteristic of ash pore water I AB-14BR I AB-21BRL J AB-22BR K AB-24BR L AB-27BR M AB-35BR O AB-38BR P GWA-01BR A GWA-04BR B GWA-05BRA C GWA-06BR D PH ADJ BLDG E PH WELL &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &<&< &<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AB-20.2 9 j AB-6R0.1 2 j AB-10S0.1 jAB-20S*0.74 AB-21S*0.43 j AB-21SL*1.3 AB-22S0.33 j AB-23S*0.28 j AB-24S*0.93 AB-24SL*0.5 j AB-25S*7.6 AB-25SL*0.7 AB-26S0.27 j AB-28S*0.37 j AB-30S*0.55 AB-35S*0.2 7 j AB-38S*0.2 j BG-1S0.1 2 j BG-2S0.48 j BG-3S0.43 j BG-4S0.16 j GWA -8S0.14 jGWA-17S0.11 j GWA -19S0.3 8 j GWA -22S0.14 j GWA -23S0.4 j GWA -26S0.17 j GWA -24SA0.1 2 j AB-1RND AB-4SND AB-5ND AB-6AND AB-9SND AB-12SND AB-13SND AB-27S*ND AB-29S*ND AB-31SND AB-32SND AB-33S*NDAB-34S*ND AB-36SND AB-37S*ND AB-39S*ND CCR-1SND CCR-2SND CCR-3SND CCR-4SAND CCR-5SND CCR-6SND CCR-7SND CCR-8SND CCR-9SND CCR-11SND CCR-14SND CCR-16SND CCR-17SND CCR-18SND CCR-20SND CCR-21SND CCR-22SND CCR-23SND GWA -1SND GWA -2SND GWA -3SND GWA -4SND GWA -5SND GWA -6SND GWA -7SND GWA -9SND GWA -14SND GWA -15SND GWA -16SND GWA -18SND GWA -21SND FIGURE 11-1ISOCONCENTRATION M APANTIMONY IN SHALLOW GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND IMAC CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL ANTIMONY CONCENTRATION (μg/L)1 NOT ES:THE INTERIM MAXIMUM AL LOWABLE CONCENTRATION (IMAC) FOR ANTIMONY IS 1μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.9 μg/L. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &< &< &<&< &<&< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 0.70.71 AB-22D0.2 6 j AB-26D0.59 AB-27D0.29 j AB-32D0.2 2 jAB-33D1.6 AB-37D0.17 j BG-1DA0.15 j BG-4D0.17 j CCR-2D0.25 j CCR-3DA0.4 1 j CCR-4D0.1 j CCR-4DA0.1 7 j CCR-9D0.11 j CCR-14D0.51 CCR-BG-1D1.5 GWA -3D0.2 4 j GWA -5D0.11 j GWA -6DA0.89 GWA -7D0.24 j GWA -9D0.1 3 j GWA -14DA†0.96 GWA -17D0.1 3 j GWA -21DA0.2 4 j GWA -22D0.14 j GWA -26D0.1 6 j AB-2DND AB-4DND AB-9DND AB-10DND AB-11DND AB-12DND AB-13DND AB-14DND AB-20DND AB-29DNDAB-30DND AB-34DND AB-36DND AB-38DND AB-39DND BG-2DND BG-3DND CCR-1DND CCR-1DAND CCR-5DND CCR-6DND CCR-7DND CCR-8DND CCR-11DAND CCR-16DND CCR-17DND CCR-18DND CCR-20DND CCR-21DND CCR-23DND GWA -1DND GWA -2DND GWA -4DND GWA -8DND GWA -15DND GWA -16DND GWA -18DND GWA -24DND FIGURE 11-2ISOCONCENTRATION M APANTIMONY IN DEEP GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND IMAC CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL ANTIMONY CONCENTRATION (μg/L)1 NOT ES:THE INTERIM MAXIMUM AL LOWABLE CONCENTRATION (IMAC) FOR ANTIMONY IS 1μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.7 μg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &< &< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AL142ND 0.5AB-21BRL0.14 j AB-22BR0.15 j AB-27BR0.19 j AB-35BR0.34 j AB-38BR0.12 j BG-2BRA-20.27 j CIF WELL0.67 GWA-5BRA0.2 j GWA-9BR†0.76GWA-24BR0.32 j AB-24BRND BG-4BRND GWA-1BRND GW A-4BRND GW A-6BRND PH WELLND AB-22BRLND GWA-6BRAND AL1ND AL1 01ND AL111ND AL112ND AL115ND AL117ND AL119ND AL120ND AL1 21ND AL124ND AL125ND AL126ND AL127ND AL1 29ND AL1 30ND AL131ND AL1 32ND AL1 33ND AL1 35ND AL1 37ND AL138ND AL139ND AL3ND AL39 WELL BND AL40ND AL41ND AL42ND AL44NDAL45ND AL47ND AL48ND AL5ND AL50 WELL AND AL50 WELL BND AL50 WELL CND AL85ND AL88ND AL89NDAL90ND AL91ND AL92ND AL93ND AL94ND AL96ND AL97ND AL98ND AL99ND AL39 WELL AND NOT ES:THE INTERIM MAXIMUM AL LOWABLE CONCENTRATION (IMAC) FOR ANTIMONY IS 1μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.5 μg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS AND SAMPLE ANALYTICAL RESULTSREFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). WAT ER SUPP LY WELL SAMPL ED BY NCDEQ BE TWEEN FEBRUARY 2015 AND OCTOBER FIGURE 11-3ISOCONCENTRATION M APANTIMONY IN BEDROCK GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND &< &< &< AB-4BR0.2 j AB-14BR0.27 j AL560.12 GWA-21BR0.43 j AL1 00ND AL1 02ND AL11ND AL110ND AL113ND AL114ND AL118ND AL12ND AL1 23ND AL136ND AL14ND AL140ND AL141ND AL15ND AL16ND AL17ND AL19ND AL2ND AL20ND AL21ND AL22ND AL23ND AL24ND AL25ND AL26ND AL27ND AL28ND AL29ND AL30ND AL31ND AL32ND AL33ND AL34ND AL49ND AL51ND AL52ND AL53ND AL54ND AL55ND AL57ND AL58ND AL59ND AL6ND AL60NDAL61NDAL62ND AL63ND AL64NDAL65ND AL66ND AL67ND AL68NDAL69ND AL7ND AL70ND AL71ND AL72ND AL73ND AL74ND AL75ND AL76ND AL77ND AL78NDAL79ND AL8ND AL81ND AL82ND AL83ND AL84ND AL9ND SEE INSET INSETSCALE: 1" = 500 ' IMAC CONTOUR PBTV CONTOUR NOT DETECTED ABOVE REPORTING LIMITND TOTAL ANTIMONY CONCENTRATION (μg/L)1 NOT SAMPLEDNS &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &<&< &<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 0.421010 AB-1R0.11 AB-20.079 j,B AB-4S0.23 AB-50.0 81 j AB-6A0.13 AB-6R0.12 AB-9S0.0 95 j AB-10S0.0 94 j AB-13S0.0 52 j AB-20S*50.5 AB-21S*634 AB-21SL*589 AB-22S0.18 B AB-23S*1030 AB-24S*85.2 AB-24SL*583 AB-25S*155 AB-25SL*807 AB-26S0.1 5 B AB-27S*248AB-28S*31.3 AB-29S*80AB-30S*288 AB-31S0.0 77 j AB-32S0.76 AB-33S*0.12AB-34S*0.45 AB-35S*70.3AB-36S18.9 AB-37S*0.42 AB-38S*303 AB-39S*2.6 BG-1S0.1 BG-2S†0.52 BG-3S0.13 BG-4S0.22 CCR-3S0.3 CCR-4SA88.3 CCR-5S4.7 CCR-6S1.9 CCR-7S0.15 CCR-8S0.62 CCR-9S0.14 CCR-11S0.0 59 j CCR-14S0.0 9 j CCR-16S0.46 CCR-17S0.0 72 j CCR-18S0.37 CCR-21S0.12 GWA -1S0.1 GWA -2S0.0 85 j GWA -3S0.11 GWA -4S0.21 GWA -5S0.23 GWA -6S137 D3 GWA -7S1.7GWA-8S0.13 GWA -9S†0.88 GWA -15S0.18 GWA -16S†0.43 GWA -17S0.22 GWA -18S0.55 GWA -19S0.3 1 B GWA -22S0.36 GWA -23S0.11 GWA -26S0.27 GWA -24SA0.0 69 j AB-8ND AB-12SND CCR-1SND CCR-2SND CCR-20SNDCCR-22SND CCR-23SND GWA -14SND GWA -21SND FIGURE 11-4ISOCONCENTRATION M APARSENIC IN SHALL OW GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL ARSENIC CONCENTRATION (μg/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR ARSENIC IS 10 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.42 μg/L. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &< &< &<&< &<&< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 1.41.4AB-2D0.1 2 B AB-4D0.0 74 j AB-9D0.0 75 j AB-10D0.12 AB-11D0.0 61 j AB-12D0.12 AB-13D0.11 AB-14D0.096 j,B AB-20D0.73 AB-22D0.2 4 B AB-26D0.28 AB-27D9.7 AB-29D0.19AB-30D0.21 AB-32D0.26 AB-33D0.3AB-34D0.19 AB-36D0.32 AB-37D0.27 AB-38D0.22 B AB-39D0.19 BG-1DA0.27 BG-2D0.24 BG-3D0.14 BG-4D0.98 CCR-1D0.57CCR-1DA0.17 CCR-2D0.66 CCR-3DA0.66 CCR-4D0.29 CCR-4DA0.7 CCR-5D0.47 CCR-6D0.13 CCR-7D0.13 CCR-8D0.12 CCR-9D0.0 96 j CCR-11DA0.0 74 j CCR-14D0.19 CCR-16D0.46 CCR-17D0.24 CCR-18D0.14 CCR-20D0.0 67 j CCR-23D0.0 77 j CCR-BG-1D0.4 GWA -1D0.29 GWA -2D0.0 87 j GWA -3D0.31 GWA -4D0.0 84 j GWA -5D0.42 GWA -6DA1.1 GWA -7D0.33 BGWA-8D0.18 GWA -9D0.2 B GWA -14DA0.6 3 j+ GWA -15D0.14 GWA -16D0.16 GWA -17D1.6 GWA -18D0.5 GWA -21DA0.2 GWA -22D0.2 GWA -24D0.24 GWA -26D0.66 CCR-21DND FIGURE 11-5ISOCONCENTRATION M APARSENIC I N DEEP GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL ARSENIC CONCENTRATION (μg/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR ARSENIC IS 10 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 1.4 μg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &<&< &< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AL142ND 0.4 0.4 0.4 AB-21BRL1.8 AB-22BR0.36 B AB-24BR0.26 AB-27BR0.3 AB-35BR0.59 AB-38BR0.28 BG -2BRA-2†0.6 BG-4BR0.31 CIF WELL0.42 GWA-1BR0.46 GW A-4BR0.36 GWA-5BRA1.8 GWA-9BR†0.44 B GW A-24BR†0.66 PH WE LL0.11 j+ AB-22BRL0.39 GWA-6BRA0.16 AL112†1.2 AL115†0.82 AL119†1.2 AL120†1.1 AL125†3.6 AL3 9 WELL B†0.86 AL50 W ELL A†1.5 AL94†2.4 AL97†1.4 AL98†1.84 GW A-6BRND PH ADJ BLDND AL1ND AL1 01ND AL111ND AL117ND AL1 21ND AL1 24ND AL1 26ND AL1 27ND AL129ND AL130ND AL131ND AL132ND AL1 33ND AL1 35ND AL137ND AL138ND AL139ND AL3ND AL40ND AL41ND AL42ND AL44ND AL45ND AL47ND AL48ND AL5ND AL50 WELL BND AL50 WELL CND AL85NDAL88ND AL89ND AL90ND AL91ND AL92ND AL93ND AL96ND AL99ND AL39 WELL AND NOT ES:THE NORTH CAROLINA 2 L FOR ARSENIC IS 10 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.4 μg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS AND SAMPLE ANALYTICAL RESULTSREFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). WAT ER SUPP LY WELL SAMPL ED BY NCDEQ BE TWEEN FEBRUARY 2015 AND OCTOBER2015. FIGURE 11-6ISOCONCENTRATION M APARSENIC IN BEDROCK GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND &< &< &< 0.4 AB-4BR0.24 AB-14BR†1.4 AL2†0.64 AL280.18 AL530.12 AL58†0.82 AL620.12AL760.13 GWA-21BR1.6 AL1 00ND AL1 02ND AL11ND AL110ND AL113ND AL114ND AL118ND AL12ND AL1 23ND AL136ND AL14ND AL140ND AL141ND AL15ND AL16ND AL17ND AL19ND AL20ND AL21ND AL22ND AL23ND AL24ND AL25ND AL26ND AL27ND AL29ND AL30ND AL31ND AL32ND AL33ND AL34ND AL49ND AL51ND AL52ND AL54ND AL55ND AL56ND AL57ND AL59ND AL6ND AL60NDAL61ND AL63ND AL64NDAL65ND AL66ND AL67ND AL68NDAL69ND AL7ND AL70ND AL71ND AL72ND AL73ND AL74ND AL75ND AL77ND AL78NDAL79ND AL8ND AL81ND AL82ND AL83ND AL84ND AL9ND SEE INSET INSETSCALE: 1" = 500 ' NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT DETECTED ABOVE REPORTING LIMITND TOTAL ARSENIC CONCENTRATION (μg/L)1 NOT SAMPLEDNS &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &<&< &<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 0.1270.1274AB-1R0.0 12 j AB-20.12 AB-4S0.0 51 j AB-50.0 63 j AB-6A0.0 17 j AB-6R0.0 11 j AB-10S0.0 26 j AB-13S0.0 71 j AB-20S*0.0 26 j AB-21S*0.0 41 j AB-21SL*0.0 51 j AB-22S0.0 83 j AB-24S*0.019 j,B AB-25S*0.0 17 j AB-25SL*0.0 16 j AB-26S0.0 31 j AB-28S*0.054 j,B AB-29S*0.0 31 j,BAB-30S*0.022 j,B AB-31S0.0 27 j AB-33S*0.0 54 j AB-35S*0.0 27 j AB-36S0.0 62 j AB-38S*0.0 32 j AB-39S*0.0 1 j BG-1S0.0 26 j BG-2S0.0 26 j BG-4S0.0 16 j CCR-1S0.0 67 j CCR-2S0.0 43 j CCR-3S0.11 CCR-4SA34 CCR-5S6.9 CCR-6S0.83 CCR-7S0.12 CCR-8S0.0 64 j CCR-9S0.0 79 j CCR-18S0.93 CCR-20S0.41 CCR-21S2.1 CCR-22S0.18 CCR-23S0.0 47 j GWA -1S0.09 j GWA -2S0.0 88 j GWA -3S0.0 2 j GWA -4S0.04 j GWA -5S0.0 59 j GWA -6S38.6 D3 GWA -7S1.1 GWA -8S0.0 73 j GWA -9S0.11 GWA -14S†0.17 GWA -16S0.0 14 j GWA -17S0.0 18 j GWA -19S0.0 5 j GWA -21S†0.15 GWA -22S0.0 92 j GWA -23S0.0 5 j GWA -26S0.0 15 j GWA -24SA0.0 57 j AB-9SND AB-12SND AB-23S*ND AB-24SL*ND AB-27S*ND AB-32SND AB-34S*ND AB-37S*ND BG-3SND CCR-11SND CCR-14SND CCR-16SND CCR-17SND GWA -15SND GWA -18SND FIGURE 11-7ISOCONCENTRATION M APBERYLLIUM IN SHALLOW GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND IMAC CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL BERYLLIUM CONCENTRATION (μg/L)1 NOT ES:THE INTERIM MAXIMUM AL LOWABLE CONCENTRATION (IMAC) FOR BERYLLIUM IS 4μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.127 μg/L. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &< &< &<&< &<&< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AB-2D0.0 19 j AB-4D0.0 32 j AB-12D0.01 j AB-13D0.0 22 j AB-14D0.16 AB-22D0.0 14 j AB-27D0.0 3 j AB-36D0.0 26 j AB-37D0.0 11 j AB-38D0.0 12 j AB-39D0.14 BG-1DA0.0 14 j BG-2D0.0 11 j BG-4D0.0 18 j GWA -1D0.0 26 j GWA -6DA0.0 13 j GWA -7D0.0 38 j GWA -9D0.0 16 j GWA -14DA0.0 19 j GWA -17D0.0 38 j GWA -21DA0.0 13 j AB-9DND AB-10DND AB-11DND AB-20DND AB-26DND AB-29DNDAB-30DND AB-32DND AB-33DNDAB-34DND BG-3DND CCR-1DNDCCR-1DAND CCR-2DND CCR-3DAND CCR-4DND CCR-4DAND CCR-5DND CCR-6DND CCR-7DND CCR-8DND CCR-9DND CCR-11DAND CCR-14DND CCR-16DND CCR-17DND CCR-18DND CCR-20DND CCR-21DND CCR-23DND CCR-BG-1DND GWA -2DND GWA -3DND GWA -4DND GWA -5DND GWA -8DND GWA -15DND GWA -16DND GWA -18DND GWA -22DND GWA -24DND GWA -26DND FIGURE 11-8ISOCONCENTRATION M APBERYLLIUM IN DEEP GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND IMAC CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL BERYLLIUM CONCENTRATION (μg/L)1 NOT ES:THE INTERIM MAXIMUM AL LOWABLE CONCENTRATION (IMAC) FOR BERYLLIUM IS 4μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.2 μg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &< &< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAWBA RIVER(LAKE W YLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AL1 42ND AB-21BRL0.01 j AB-22BR0.012 j AB-27BR0.014 j BG -2 BRA-20.0 23 j BG -4BR0.016 j CIF WELL0.0 29 j GW A-1BR0.029 j GWA-4BR0.0 37 j GWA-5BRA0.033 j GWA-6BR0.1 j AB-24BRND AB-35BRND AB-38BRND GWA-9BRNDGWA-24BRND PH WELLND AB-22BRLND GWA-6BRAND AL1ND AL1 01ND AL111ND AL112ND AL115ND AL117ND AL119ND AL1 20ND AL121ND AL124ND AL1 25ND AL126ND AL127ND AL129ND AL130ND AL1 31ND AL1 32ND AL133ND AL135ND AL1 37ND AL1 38ND AL1 39ND AL3ND AL39 WELL BND AL40ND AL41ND AL42ND AL44ND AL45ND AL47ND AL48ND AL5ND AL50 WELL AND AL50 WELL BND AL50 WELL CND AL85ND AL88ND AL89NDAL90ND AL91ND AL92ND AL93ND AL94ND AL96ND AL97ND AL98ND AL99ND AL39 WELL AND NOT ES:THE INTERIM MAXIMUM AL LOWABLE CONCENTRATION (IMAC) FOR BERYLLIUM IS 4μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.2 μg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS AND SAMPLE ANALYTICAL RESULTSREFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). FIGURE 11-9ISOCONCENTRATION M APBERYLLIUM IN BEDROCK GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND &< &< &< AB-4BR0.018 j GWA-21BR0.0 12 j AB-14BRND AL1 00ND AL1 02ND AL11ND AL110ND AL113ND AL114ND AL118ND AL12ND AL1 23ND AL136ND AL14ND AL140ND AL141ND AL15ND AL16ND AL17ND AL19ND AL2ND AL20ND AL21ND AL22ND AL23ND AL24ND AL25ND AL26ND AL27ND AL28ND AL29ND AL30ND AL31ND AL32ND AL33ND AL34ND AL49ND AL51ND AL52ND AL53ND AL54ND AL55ND AL56ND AL57ND AL58ND AL59ND AL6ND AL60NDAL61NDAL62ND AL63ND AL64NDAL65ND AL66ND AL67ND AL68NDAL69ND AL7ND AL70ND AL71ND AL72ND AL73ND AL74ND AL75ND AL76ND AL77ND AL78NDAL79ND AL8ND AL81ND AL82ND AL83ND AL84ND AL9ND SEE INSET INSETSCALE: 1" = 500 ' IMAC CONTOUR PBTV CONTOUR NOT DETECTED ABOVE REPORTING LIMITND TOTAL BERYLLIUM CONCENTRATION (μg/L)1 NOT SAMPLEDNS &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &<&< &<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 50 700 AB-4S38.9 j AB-8496 AB-9S701 AB-10S29.1 j AB-13S26.6 j AB-20S*2430 AB-21S*3280 M1 AB-21SL*6950 AB-23S*560 AB-24S*294 AB-24SL*606 AB-25S*1390 AB-25SL*1280 AB-26S1100 AB-27S*516 AB-28S*869 AB-29S*614AB-30S*881 AB-31S1930 AB-33S*778AB-34S*305 AB-35S*926AB-36S87.8 AB-38S*179 AB-39S*135 CCR-3S417 CCR-5S542 CCR-6S686 CCR-7S1990 CCR-8S1570 CCR-9S1240 CCR-11S117 CCR-14S938 CCR-16S1110 CCR-17S1310 CCR-18S51.2 CCR-20S218 CCR-21S1760 GWA -3S363 GWA -4S2180 GWA -9S32.5 j GWA -15S28.4 j AB-1RND AB-2ND AB-5ND AB-6AND AB-6RND AB-12SND AB-22SND AB-32SNDAB-37S*ND BG-1SND BG-2SND BG-3SND BG-4SND CCR-1SND CCR-2SND CCR-4SAND CCR-22SND CCR-23SND GWA -1SND GWA -2SND GWA -5SND GWA -6SND GWA -7SNDGWA-8SND GWA -14SND GWA -16SND GWA -17SND GWA -18SND GWA -19SND GWA -21SND GWA -22SND GWA -23SND GWA -26SND GWA -24SAND FIGURE 11-10ISOCONCENTRATION M APBORON IN SHALLOW GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL BORON CONCENTRATION (μg/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR BORON IS 700 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 50 μg/L. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &< &< &<&< &<&< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 50700700 7 0 0 AB-9D538 AB-13D26.9 j AB-14D†163 AB-22D1540 AB-26D276 AB-27D387 AB-29D322 AB-32D455 AB-33D190 AB-39D84.6 CCR-2D69.2 CCR-4D42.6 jCCR-4DA43.7 j CCR-5D47.7 j CCR-6D33 j CCR-7D709 CCR-8D1290 CCR-9D1980 CCR-11DA1470 CCR-14D571 CCR-16D406 CCR-17D1460 CCR-18D234 CCR-20D382 CCR-21D340 GWA -1D37.6 j GWA -3D94.2 GWA -4D664 GWA -5D606 GWA -6DA36.7 j AB-2DND AB-4DND AB-10DND AB-11DND AB-12DND AB-20DND AB-30DND AB-34DND AB-36DND AB-37DND AB-38DND BG-1DAND BG-2DND BG-3DND BG-4DND CCR-1DND CCR-1DAND CCR-3DAND CCR-23DND CCR-BG-1DND GWA -2DND GWA -7DNDGWA-8DND GWA -9DND GWA -14DAND GWA -15DND GWA -16DND GWA -17DND GWA -18DND GWA -21DAND GWA -22DND GWA -24DND GWA -26DND FIGURE 11-11ISOCONCENTRATION M APBORON IN DEEP GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL BORON CONCENTRATION (μg/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR BORON IS 700 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 50 μg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &<&< &< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AL142ND 50700 700 AB-21BRL26.4 j AB-22BR1550 AB-27BR130 GW A-4BR388 GWA-5BRA923 PH WELL309 AB-22BRL1670 GWA-6BRA30.2 j AL1129.2 AL11538.8 AL11742 AL1197.4 AL1 2015.8 AL1255.6 AL37.1 AL4426.9 AL50 WELL A7 AL50 WELL B5.8 AL50 W ELL C†102 AL945.5 AL978 AB-24BRND AB-35BRND AB-38BRND BG-2BRA-2ND BG-4BRND CIF W ELLND GWA-1BRND GW A-6BRND GWA-9BRNDGWA-24BRND PH ADJ BLDND AL1ND AL101ND AL111ND AL1 21ND AL1 24ND AL1 26ND AL1 27ND AL129ND AL130ND AL131ND AL132ND AL1 33ND AL1 35ND AL137ND AL138ND AL139ND AL39 WELL BND AL40ND AL41ND AL42ND AL45ND AL47ND AL48ND AL5ND AL85NDAL88ND AL89ND AL90ND AL91ND AL92ND AL93ND AL96ND AL98ND AL99ND AL39 WELL AND NOT ES:THE NORTH CAROLINA 2 L FOR BORON IS 700 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 50 μg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS AND SAMPLE ANALYTICAL RESULTSREFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). WAT ER SUPP LY WELL SAMPL ED BY NCDEQ BE TWEEN FEBRUARY 2015 AND OCTOBER2015. FIGURE 11-12ISOCONCENTRATION M APBORON IN BEDROCK GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND &< &< &< AL1 029.5 AL1510.9 AL26.6 AL56†66 AL586.6 AL675.3 AB-4BRND AB-14BRND AL1 00ND AL11ND AL110ND AL113ND AL114ND AL118ND AL12ND AL1 23ND AL136ND AL14ND AL140ND AL141ND AL16ND AL17ND AL19ND AL20ND AL21ND AL22ND AL23ND AL24ND AL25ND AL26ND AL27ND AL28ND AL29ND AL30ND AL31ND AL32ND AL33ND AL34ND AL49ND AL51ND AL52ND AL53ND AL54ND AL55ND AL57ND AL59ND AL6ND AL60NDAL61NDAL62ND AL63ND AL64NDAL65ND AL66ND AL68NDAL69ND AL7ND AL70ND AL71ND AL72ND AL73ND AL74ND AL75ND AL76ND AL77ND AL78NDAL79ND AL8ND AL81ND AL82ND AL83ND AL84ND AL9ND GWA-21BRND SEE INSET INSETSCALE: 1" = 500 ' NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT DETECTED ABOVE REPORTING LIMITND TOTAL BORON CONCENTRATION (μg/L)1 NOT SAMPLEDNS &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &<&< &<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 0.080 . 0 8 0.080.08 2AB-21SL*0.22 AB-31S0.11 AB-33S*0.05 j CCR-3S0.28 CCR-4SA7.7 CCR-5S5.6 CCR-6S0.09 CCR-7S0.0 94 CCR-8S0.0 7 j CCR-14S0.0 75 j CCR-18S0.0 73 j CCR-21S0.74 GWA -4S0.0 75 j GWA -5S0.18 GWA -6S9.3 D3 GWA -7S0.25 GWA -8S0.091 GWA -9S0.0 52 j GWA -19S0.0 55 j GWA -22S0.17 GWA -24SA0.0 31 j AB-1RND AB-2ND AB-4SND AB-5ND AB-6ANDAB-6RND AB-8ND AB-9SND AB-10SND AB-12SND AB-13SND AB-20S*ND AB-21S*ND AB-22SND AB-23S*ND AB-24S*ND AB-24SL*ND AB-25S*ND AB-25SL*ND AB-26SND AB-27S*NDAB-28S*ND AB-29S*NDAB-30S*ND AB-32SND AB-34S*ND AB-35S*NDAB-36SND AB-37S*ND AB-38S*ND AB-39S*ND BG-1SND BG-2SND BG-3SND BG-4SND CCR-1SND CCR-2SND CCR-9SND CCR-11SND CCR-16SND CCR-17SND CCR-20SND CCR-22SND CCR-23SND GWA -1SND GWA -2SND GWA -3SND GWA -14SND GWA -15SND GWA -16SND GWA -17SND GWA -18SND GWA -21SND GWA -23SND GWA -26SND FIGURE 11-13ISOCONCENTRATION M APCADMIUM IN SHALLO W GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL CADMI UM CONCENTRATION (μg/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR CADMIUM IS 2 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.08 µg/L. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &< &< &<&< &<&< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL0.080 .0 8 AB-39D0.0 87 GWA -7D0.28 GWA -22D0.0 67 j AB-2DND AB-4DND AB-9DND AB-10DND AB-11DND AB-12DND AB-13DND AB-14DND AB-20DND AB-22DND AB-26DND AB-27DND AB-29DNDAB-30DND AB-32DND AB-33DNDAB-34DND AB-36DND AB-37DND AB-38DND BG-1DAND BG-2DND BG-3DND BG-4DND CCR-1DND CCR-1DAND CCR-2DND CCR-3DAND CCR-4DND CCR-4DAND CCR-5DND CCR-6DND CCR-7DND CCR-8DND CCR-9DND CCR-11DAND CCR-14DND CCR-16DND CCR-17DND CCR-18DND CCR-20DND CCR-21DND CCR-23DND CCR-BG-1DND GWA -1DND GWA -2DND GWA -3DND GWA -4DND GWA -5DND GWA -6DAND GWA -8DND GWA -9DND GWA -14DAND GWA -15DND GWA -16DND GWA -17DND GWA -18DND GWA -21DAND GWA -24DND GWA -26DND FIGURE 11-14ISOCONCENTRATION M APCADMIUM IN DEEP GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL CADMI UM CONCENTRATION (μg/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR CADMIUM IS 2 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.08 µg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &<&< &< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AL142ND 0.08GWA-9BR†0.14 AB-21BRLND AB-22BRND AB-24BRND AB-27BRND AB-35BRND AB-38BRND BG -2 BRA-2ND BG-4BRND CIF W ELLND GWA-1BRND GW A-4BRND GWA-5BRAND GW A-6BRND GWA-24BRND PH ADJ BLDND PH WELLND AB-22BRLND GWA-6BRAND AL1ND AL1 01ND AL111ND AL112ND AL115ND AL117ND AL119ND AL120ND AL1 21ND AL124ND AL125ND AL126ND AL127ND AL1 29ND AL1 30ND AL131ND AL1 32ND AL1 33ND AL1 35ND AL1 37ND AL138ND AL139ND AL3ND AL39 WELL BND AL40ND AL41ND AL42ND AL44NDAL45ND AL47ND AL48ND AL5ND AL50 WELL AND AL50 WELL BND AL50 WELL CND AL85ND AL88ND AL89NDAL90ND AL91ND AL92ND AL93ND AL94ND AL96ND AL97ND AL98ND AL99ND AL39 WELL AND NOT ES:THE NORTH CAROLINA 2 L FOR CADMIUM IS 2 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.08 µg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS AND SAMPLE ANALYTICAL RESULTSREFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). WAT ER SUPP LY WELL SAMPL ED BY NCDEQ BE TWEEN FEBRUARY 2015 AND OCTOBER2015. FIGURE 11-15ISOCONCENTRATION M APCADMIUM IN BEDROCK GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND &< &< &< 0.08AB-4BR0.53 AB-14BR†0.12 AL1 41†0.092 AL1 00ND AL1 02ND AL11ND AL110ND AL113ND AL114ND AL118ND AL12ND AL1 23ND AL136ND AL14ND AL140ND AL15ND AL16ND AL17ND AL19ND AL2ND AL20ND AL21ND AL22ND AL23ND AL24ND AL25ND AL26ND AL27ND AL28ND AL29ND AL30ND AL31ND AL32ND AL33ND AL34ND AL49ND AL51ND AL52ND AL53ND AL54ND AL55ND AL56ND AL57ND AL58ND AL59ND AL6ND AL60NDAL61NDAL62ND AL63ND AL64NDAL65ND AL66ND AL67ND AL68NDAL69ND AL7ND AL70ND AL71ND AL72ND AL73ND AL74ND AL75ND AL76ND AL77ND AL78NDAL79ND AL8ND AL81ND AL82ND AL83ND AL84ND AL9ND GWA-21BRND SEE INSET INSETSCALE: 1" = 500 ' NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT DETECTED ABOVE REPORTING LIMITND TOTAL CADMI UM CONCENTRATION (μg/L)1 NOT SAMPLEDNS &< &<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&<&<&< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &<&<&< &<&< &<&< &<&< &<&< &<&< &<&<&<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &< &<&<&<&< &<&<&<&< &< &<&<&<&<&<&<&<&< &<&<&<&< &<&<&<&< &<&< &<&< &<&<&<&< &<&<&<&< AB-1R4.6 AB-20.9 5 B AB-4S0.52 AB-58.3 AB-6A12.6 AB-6R10.7 AB-81.3 AB-9S0.4 3 j AB-10S1 AB-13S0.56 AB-20S*0.53 AB-21S*0.1 7 j,BAB-21SL*0.2 4 j,B AB-22S1.7 AB-23S*0.1 9 j AB-24S*0.2 1 j,B AB-24SL*0.2 4 j AB-25S*3.8 AB-25SL*0.2 7 j AB-26S2.4 AB-27S*0.4 4 jAB-28S*0.6 1 B AB-29S*0.3 2 j,BAB-30S*0.1 9 j,B AB-31S1.6 AB-32S0.4 8 jAB-33S*0.3 4 j AB-34S*0.4 9 j AB-35S*0.57 AB-36S0.4 3 j AB-37S*0.64 AB-38S*0.4 j,B AB-39S*0.3 7 j BG-1S0.3 7 j BG-2S9.2 BG-3S3.1 BG-4S0.74 CCR-1S2.1 j+ CCR-2S0.5 CCR-3S0.4 2 j CCR-5S3.2 j CCR-6S1.3 CCR-7S0.2 9 j CCR-8S0.3 5 j CCR-9S0.11 j CCR-11S0.4 7 j CCR-14S0.3 3 j CCR-16S15.9 CCR-17S1 CCR-18S0.68CCR-20S1.6 CCR-21S0.67 CCR-22S0.6 CCR-23S0.3 7 j GWA-1S2.2 GWA-3S0.2 2 j GWA-4S0.66 GWA-5S1.4 GWA-6S6.6 D3 GWA-7S7.5GWA-8S8.6 GWA-9S0.7 B GWA-14S4.8 GWA-15S0.51 GWA-16S0.99 GWA-17S4.5 GWA-18S0.3 9 j GWA-19S1.9 GWA-21S3 GWA-22S0.4 6 j,B GWA-23S1.3 GWA-26S2.8 AB-1R4 AB-20.2 AB-4S0.0 53 j,D* AB-51.5 AB-6A12.7 AB-6R12.3 AB-9S0.052 j,D3 AB-10S0.49 AB-13S0.62 AB-20S*0.0 31 AB-21S*0.41AB-21SL*0.041 j,D3 AB-26S0.29 AB-27S*0.53 AB-31S0.26 AB-32S1.1 AB-36S0.032 AB-37S*0.36 AB-38S*0.0 57 j,D3BG-1S0.16 BG-2S1.3 BG-3S0.28 BG-4S0.22 GWA-1S0.74 GWA-4S0.0 16 j GWA-5S0.0 29 GWA-6S3.1 GWA-7S7 GWA-8S4.2 GWA-9S0.021 j GWA-14S2.8 GWA-15S0.39 GWA-16S0.0 63 GWA-17S3.6 GWA-18S0.17 GWA-19S0.42 GWA-21S1.9 GWA-22S0.05 GWA-23S0.3 3 M1 GWA-26S0.62 AB-12SND CCR-4SAND GWA -2SND AB-22SND AB-24S*ND AB-24SL*ND AB-25S*ND AB-25SL*ND AB-28S*ND AB-29S*ND AB-30S*ND AB-33S*ND AB-34S*NDAB-35S*ND AB-39S*ND GWA -2SND GWA -3SND CCR-1SNS CCR-2SNS CCR-3SNS CCR-4SANS CCR-5SNS CCR-6SNS CCR-7SNS CCR-8SNS CCR-9SNS CCR-11SNS CCR-14SNS CCR-16SNS CCR-17SNS CCR-18SNS CCR-20SNS CCR-21SNS CCR-22SNSCCR-23SNS GWA-24SA1.5 GWA-24SA0.0 2 j ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 10 6 .9 3 6.936.936.93 10 NOT ES:THE NORTH CAROLINA 2 L FOR CHROMIUM IS 10 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 6.93 µg/L. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). FIGURE 11-16ISOCONCENTRATION M APCHROMIUM (VI) AND CHROMIUM (TOTAL) I N SHALLOWGROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/25/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Chromium.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR TOTAL CHROMIUM CONCENTRATION (μg/L)1 CHROMIUM (VI) CONCENTRATION (µg/L)1 CHROMIUM (VI) NOT DETECTED ABOVEREPORTING LIMITND TOTAL CHROMIUM NOT DETECTED ABOVEREPORTING LIMITND CHROMIUM (VI) NOT SAMPLEDNS &< &< &< &< &< &< &<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&<&<&< &<&< &<&< &<&<&<&< &<&< &<&< &<&< &<&<&<&< &<&<&<&< &<&< &<&< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &<&<&<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< AB-2D3.6 AB-4D5.9 AB-9D0.66 AB-10D3.3 AB-11D2.7 AB-12D0.76 AB-13D2 AB-14D3.3 AB-20D1.1 AB-22D3.2 AB-26D2.5 AB-27D0.73 AB-29D0.8 5 BAB-30D0.7 4 B AB-32D4.6AB-33D2.2AB-34D0.95 AB-36D0.4 3 jAB-37D0.86 AB-38D0.3 2 j,B AB-39D0.4 j BG-1DA6.8 BG-2D2.1 BG-3D0.56 BG-4D2.3 CCR-1D0.4 5 j CCR-1DA0.3 7 j CCR-2D0.3 2 j CCR-3DA2.6 CCR-4D0.67 CCR-4DA0.53 CCR-5D0.4 4 j CCR-6D0.2 3 j CCR-7D0.65 CCR-8D0.2 7 j CCR-9D0.2 5 j CCR-11DA0.3 1 j CCR-14D0.82 CCR-16D0.3 8 j CCR-17D0.11 j CCR-18D0.2 6 j CCR-20D0.1 3 j CCR-21D0.2 7 j CCR-23D0.3 2 j CCR-BG-1D1.1 GWA-1D7 GWA-2D1.7 GWA-3D0.78 GWA-4D0.1 9 j GWA-5D0.68 GWA-6DA2.4 GWA-7D15 GWA-8D5.8 GWA-9D1.5 GWA-14DA7.5 GWA-15D1.6 GWA-16D1.1 GWA-17D3.5 GWA-18D1.5 GWA-21DA3.7 GWA-22D†26.9 GWA-24D2.3 GWA-26D0.57 AB-2D2.3 AB-4D5.4 AB-9D0.21 AB-10D2.4 AB-11D2.2 M6 AB-12D0.45 AB-13D1.1 AB-14D2 AB-20D0.94 AB-22D0.0 85 AB-26D0.73 AB-27D0.29 AB-29D0.56 AB-30D0.35 AB-32D0.55 AB-33D0.0 15 j AB-34D0.41AB-36D0.081 AB-37D0.15 AB-38D0.0 29 AB-39D0.062 BG-1DA0.54 BG-2D1 BG-3D0.27 BG-4D0.28 GWA-1D6.8 GWA-2D1.5 GWA-3D0.29 GWA-5D0.038 GWA-6DA0.0 64 j,D* GWA-7D6.2 GWA-8D0.46 GWA-9D0.84 GWA-14DA3.2 GWA-15D1.5 GWA-16D0.46 GWA-17D1.4 GWA-18D1.2 GWA-21DA0.78 GWA-22D0.45 GWA-24D1.3 GWA-26D0.063 GWA -4DND CCR-1DNS CCR-1DANS CCR-2DNS CCR-3DANS CCR-4DNS CCR-4DANS CCR-5DNS CCR-6DNS CCR-7DNS CCR-8DNS CCR-9DNS CCR-11DANS CCR-14DNS CCR-16DNS CCR-17DNS CCR-18DNS CCR-20DNS CCR-21DNS CCR-23DNS CCR-BG-1DNS ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 6.86.810 NOT ES:THE NORTH CAROLINA 2 L FOR CHROMIUM IS 10 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 6.8 µg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). FIGURE 11-17ISOCONCENTRATION M APCHROMIUM (VI) AND CHROMIUM (TOTAL) IN DEEPGROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/25/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Chromium.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR TOTAL CHROMIUM CONCENTRATION (μg/L)1 CHROMIUM (VI) CONCENTRATION (µg/L)1 CHROMIUM (VI) NOT DETECTED ABOVEREPORTING LIMITND TOTAL CHROMIUM NOT DETECTED ABOVEREPORTING LIMITND CHROMIUM (VI) NOT SAMPLEDNS &<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&<&<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&<&<&< &<&<&< &<&< &<&< ACTIVEASH BASIN INACTIVEASHBASIN CATAWBA RIVER(LAKE W YLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AB-21BRL0.3 3 j,B AB-22BR3.2 AB-24BR0.2 1 j AB-27BR0.64 AB-35BR1.8 AB-38BR0.3 2 j,B AL1012.9 AL1111.3 AL1150.63 AL1170.95 AL1191.3 AL1212 AL1241.1 AL1264.4 AL1275 AL1290.63 AL1302.4 AL1311.1 AL1320.98 AL1330.95 AL1352.4 AL1381.4 AL1390.81 AL1420.89 AL31.9 AL39WELL A0.84 AL39WELL B0.85 AL401.1 AL420.89 AL450.89 AL472.6 AL484.4 AL53 AL50WELL C1.8 AL852.6 AL881.4 AL894 AL902.4 AL912.1 AL921.2 AL932.4 AL960.75 AL980.82 AL990.91 BG-2BRA-2†8.9 BG-4BR2 CIF WELL2.9 GWA-1BR2.9 GWA-4BR9 GWA-5BRA2.3 GWA-9BR0.9 7 B GWA-24BR2.2 PH ADJBLDG1.2 PH W ELL0.59 AB-21BRL0.0 089 j AB-22BR0.054 AB-27BR0.015 j AB-35BR0.97 AB-38BR0.012 j AL10.17 AL1010.61 AL1111.1 AL1120.05 AL1150.16 AL1170.15 AL1190.0 56 AL1211.7 AL1241 AL1264.2AL1274.4 AL1290.41 AL1302.4 AL1310.78 AL1320.93 AL1330.72 AL1352.1 AL1370.33 AL1381.2 AL1390.64 AL1420.079 AL31.9 AL39WELL A0.78 AL39WELL B0.18 AL400.19 AL410.12 AL420.72 AL440.17 AL450.69 AL472.2 AL483.8 AL54 AL50WELL A0.21 AL50WELL B0.24 AL50WELL C1.1 AL852.5AL880.82 AL894 AL901.9 AL911.5 AL920.46 AL931.5 AL940.18 AL960.43 AL990.78 BG-2BRA-20.66 BG-4BR0.18 GWA-1BR2.6 GWA-4BR0.0 094 j GWA-5BRA0.036 GWA-6BR0.1 3 j+ GWA-9BR0.23 GWA-24BR0.12 AL1ND AL112ND AL120NDAL125ND AL137ND AL41ND AL44ND AL50WELL AND AL94ND AL97ND GWA -6BRND AB-24BRND AL120ND AL125ND AL97ND AL98ND CIF W ELLND PH WELLND AL50WELL BND GWA-6BRA1.7 GWA-6BRA0.0 095 j AB-22BRL1.3 AB-22BRL0.0 89 PH ADJBLDGNS 5.6NOT ES:THE NORTH CAROLINA 2L FOR CHROMIUM IS 10 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 5.6 µg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFER TO ANALYTICAL DATATABLE NOTES FOR QUALI FIER DEFINITIONS. † CONCENT RATION GREAT ER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRAT ION RANGE FOR SIMILA R PIEDMONT GEOLOGIC SETTINGS. DUETO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS,CONCENTRATION DOES NOT SUGGEST I MPACT FROM THE ASH BASIN. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLERESULTS FOR EA CH WELL. DATA W ITH HIGH TURBIDITY (>10 NTU) OR RESULTS THATINDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEEN REMOVED FROMDATASET. COLLECTION DATES DEPICT ED ON FI GURE RANGE FROM MARCH 2010 TONOVEMBER 2017. DISPLAYED WATER SUPPLY WELL LOCATI ONS AND SAMPLE ANALYTICAL RESULTS REFLECTINFORMATION AVAILAB LE UP TO DECEMBER 31, 2015. PROPERTY BOUNDARY PROVIDE D BY DUKE ENERGY CAROLINAS. AERIAL P HOTOGRAPHY OB TAINED F ROM GOOGLE EARTH PRO ON OCTOBER 11, 2017. AERIALWAS COLLECTED ON OCTOBER 8, 2016. DRAWI NG HAS BEEN SET WIT H A P ROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). WAT ER SUPPLY WELL SAMPLED BY NCDE Q BETW EEN FEBRUARY 2015 AND OCTOBER 2015. FIGURE 11-18ISOCONCENTRATION M APCHROMIUM (VI) AND CHROMIUM (TOTAL) I N BEDROCKGROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/25/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supp lement_2\Allen - Isoconcentration Maps_Chromium_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR &<&< &<&< &<&< AL1022.6 AL260.79 AB-4BR1.2 AB-14BR0.36 j,B AL1 000.71 AL112.6 AL1102.1 AL1132.8 AL1142.7 AL1182.8 AL121.7 AL1232.2 AL1363.3 AL144 AL1402.5 AL1413.9 AL152 AL161.7 AL171.4 AL192.7 AL21.5 AL201.6 AL210.92 AL220.58 AL231.5 AL240.89 AL252.7 AL272 AL282.05 AL292.1 AL303.6 AL312 AL322.4 AL334.2 AL342.6 AL491.2AL510.76 AL520.71 AL534.06 AL543.2 AL552 AL564.5 AL571.2 AL580.63 AL593 AL63.5 AL605.8 AL614.8 AL622.84 AL633.31AL644.4AL660.5 AL670.89 AL682.8AL691.8 AL71.2 AL701.8 AL711.5 AL722.5 AL732.2 AL742.1 AL752.1AL762.62 AL771 AL790.6 AL83.1 AL810.73 AL821.4 AL833.5 AL840.55 AL96 GWA-21BR0.73 AL271.8 AL520.12 AL532.9 AB-4BR0.65 AB-1 4BR0.072 M1 AL1 000.56 AL1 021.4 AL111.6 AL1101.7 AL1132 AL1142.2 AL1182.3 AL121.5 AL1232 AL1362.8 AL145 AL1402.4 AL1 414.4 AL151.8 AL161.8 AL171.1 AL192.6 AL21 AL201.4 AL210.74 AL220.39 AL231.1 AL240.77AL252.3 AL260.55 AL282.05 AL292.2 AL303.5 AL311.7 AL322.7 AL334.1 AL342.3 AL490.9 AL510.43 AL542.9 AL551.5 AL571 AL580.24 AL592.4 AL63.2 AL605.3AL614.6AL622.26AL631.94AL644.3 AL650.25 AL660.38 AL670.62 AL681.8 AL691.2 AL70.97 AL701.6 AL711 AL721.1 AL732.4 AL742 AL751.7 AL762.62 AL770.7 AL780.1 AL790.33 AL83.5 AL810.78 AL820.81 AL833.5 AL840.59 AL95 GWA-21BR0.092 AL78ND AL65ND AL56ND SEE INSET INSETSCALE: 1" = 500 ' TOTAL CHROMIUM CONCENTRATION (μg/L)1 CHROMIUM (VI) CONCENTRATION (µg/L)1 TOTAL CHROMIUM NOT DETECTED ABOVEREPORTING LIMITND CHROMIUM (VI) NOT SAMPLEDNS CHROMIUM (VI) NOT DETECTED ABOVEREPORTING LIMITND &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &<&< &<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 4.34 .3 4.3AB-1R0.12 AB-21.8 AB-4S0.92 AB-50.32 AB-6A0.0 91 jAB-6R0.0 96 j AB-9S7 AB-10S2 AB-13S0.85 AB-20S*3.3 AB-21S*0.8 AB-21SL*1.1 AB-22S32.3 AB-23S*0.29 j AB-24S*0.96 AB-24SL*0.0 48 j,B AB-25S*2.5 AB-25SL*0.0 79 j AB-26S1.2 AB-27S*5.7AB-28S*9.7 AB-29S*25AB-30S*2.4 AB-31S0.18 AB-32S19.7 AB-33S*14.2AB-34S*2 AB-35S*0.1 6 B AB-36S1.5 AB-37S*0.5 AB-38S*2.5 AB-39S*2.7 BG-1S0.0 56 j BG-2S0.43 BG-3S0.12 B BG-4S0.25 CCR-1S9.9 CCR-2S0.32 CCR-3S52.3 CCR-4SA3670 CCR-5S805 CCR-6S34.5 CCR-7S4.5 CCR-8S41.3 CCR-9S14.8 CCR-11S0.35 CCR-14S13.4 CCR-16S2.1 CCR-17S0.8 CCR-18S21.4 CCR-20S11 CCR-21S56.6 CCR-22S3.3 CCR-23S1.2 GWA -1S3 GWA -2S5.9 GWA -3S11.7 GWA -4S5.7 GWA -5S20 GWA -6S3640 D3,M6 GWA -7S74.6 GWA -8S0.62 GWA -9S†9.1 GWA -14S3.5 GWA -15S0.1 2 B GWA -16S0.87 GWA -17S0.17 GWA -18S0.2 GWA -19S0.2 GWA -21S1.6 GWA -22S†17.5 GWA -23S0.56 GWA -26S0.26 GWA -24SA2 AB-12SND FIGURE 11-19ISOCONCENTRATION M APCOBALT I N SHALLOW GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND IMAC CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL COBALT CONCENTRATION (μg/L)1 NOT ES:THE INTERIM MAXIMUM AL LOWABLE CONCENTRATION (IMAC) FOR COBALT IS 1 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 4.3 µg/L. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &< &< &<&< &<&< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 0.50 .5 0.50.5 AB-2D0.0 41 j AB-4D0.0 63 j AB-9D0.0 24 j AB-10D0.0 69 j AB-11D0.0 43 j AB-12D0.14 AB-13D0.16 AB-14D†1.7 AB-20D0.0 22 j AB-22D0.55 AB-26D0.34 AB-27D0.75 AB-29D0.45 AB-30D0.18 AB-32D0.17 AB-33D0.27AB-34D0.089 j,B AB-36D0.1 AB-37D0.24 AB-38D0.79 AB-39D0.16 B BG-1DA0.16 BG-2D0.11 BG-3D0.055 j,B BG-4D0.43 CCR-1D0.26 CCR-1DA0.9 CCR-2D0.64 CCR-3DA0.0 5 j,B CCR-4D0.6 CCR-4DA0.43 CCR-5D0.29 CCR-6D0.11 CCR-7D0.18 CCR-8D0.13 CCR-9D0.2 CCR-11DA1.9 CCR-14D0.14 CCR-16D0.1 CCR-17D0.0 95 j CCR-18D0.32 CCR-20D0.6 CCR-21D0.0 5 j CCR-23D0.36 CCR-BG-1D0.18 GWA -1D0.0 52 j GWA -2D0.0 9 j GWA -3D0.11 GWA -4D0.0 53 j,B GWA -5D0.1 B GWA -6DA0.39 GWA -7D0.12GWA-8D0.4 GWA -9D0.23 GWA -14DA0.25 GWA -15D0.034 j,B GWA -16D0.0 79 j GWA -17D0.38 GWA -18D0.23 GWA -21DA0.11 B GWA -22D0.9 GWA -24D0.23 GWA -26D0.31 FIGURE 11-20ISOCONCENTRATION M APCOBALT IN DEEP GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND IMAC CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL COBALT CONCENTRATION (μg/L)1 NOT ES:THE INTERIM MAXIMUM AL LOWABLE CONCENTRATION (IMAC) FOR COBALT IS 1 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.5 µg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &< &< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AL142ND 0.270.27 0.27 1AB-21BRL0.11 AB-22BR0.18 AB-24BR0.0 72 j,B AB-27BR0.5 AB-35BR0.0 24 j AB-38BR0.18 BG-2BRA-20.15 BG-4BR0.0 72 j CIF W ELL0.42 GWA-1BR0.0 71 j GW A-4BR0.14 GWA-5BRA0.16 GW A-6BR0.88 j GW A-9BR0.069 jGWA-24BR0.2 PH WELL0.064 j AB-22BRL0.18 GWA-6BRA1.6 AL44†1.4 AL1ND AL101ND AL111ND AL112ND AL115ND AL117ND AL119ND AL120ND AL1 21ND AL124ND AL125ND AL1 26ND AL127ND AL1 29ND AL1 30ND AL131ND AL1 32ND AL1 33ND AL135ND AL1 37ND AL1 38ND AL139ND AL3ND AL39 WELL BND AL40ND AL41ND AL42ND AL45ND AL47ND AL48ND AL5ND AL50 WELL AND AL50 WELL BND AL50 WELL CND AL85ND AL88ND AL89NDAL90ND AL91ND AL92ND AL93ND AL94ND AL96ND AL97ND AL98ND AL99ND AL39 WELL AND NOT ES:THE INTERIM MAXIMUM AL LOWABLE CONCENTRATION (IMAC) FOR COBALT IS 1 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.27 µg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS AND SAMPLE ANALYTICAL RESULTSREFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). WAT ER SUPP LY WELL SAMPL ED BY NCDEQ BE TWEEN FEBRUARY 2015 AND OCTOBER2015. FIGURE 11-21ISOCONCENTRATION M APCOBALT I N BEDROCK GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND &< &< &< 0 .2 7 0.27AB-4BR1.7 AB-14BR0.0 12 j AL560.26 AL630.05 GW A-21BR†0.3 AL1 00ND AL1 02ND AL11ND AL110ND AL113ND AL114ND AL118ND AL12ND AL1 23ND AL136ND AL14ND AL140ND AL141ND AL15ND AL16ND AL17ND AL19ND AL2ND AL20ND AL21ND AL22ND AL23ND AL24ND AL25ND AL26ND AL27ND AL28ND AL29ND AL30ND AL31ND AL32ND AL33ND AL34ND AL49ND AL51ND AL52ND AL53ND AL54ND AL55ND AL57ND AL58ND AL59ND AL6ND AL60NDAL61NDAL62NDAL64NDAL65ND AL66ND AL67ND AL68NDAL69ND AL7ND AL70ND AL71ND AL72ND AL73ND AL74ND AL75ND AL76ND AL77ND AL78NDAL79ND AL8ND AL81ND AL82ND AL83ND AL84ND AL9ND SEE INSET INSETSCALE: 1" = 500 ' IMAC CONTOUR PBTV CONTOUR NOT DETECTED ABOVE REPORTING LIMITND TOTAL COBALT CONCENTRATION (μg/L)1 NOT SAMPLEDNS &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &< &<&< &<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL835 8 3 5 835 AB-1R29.8 j AB-2178 AB-4S584 AB-5764 AB-6R140 AB-833.9 AB-9S5550 AB-10S406 AB-12S39 AB-13S27.5 j AB-20S*2340 AB-21S*11500 AB-21SL*1110 AB-22S2700 AB-23S*80.8 AB-24S*2100 AB-24SL*126 AB-25S*416 AB-25SL*78.6 AB-26S595 AB-27S*13100AB-28S*6180 AB-29S*13500AB-30S*4910 AB-31S606 AB-32S32700 AB-33S*41100 AB-34S*108000 AB-35S*49100AB-36S1490 AB-37S*686 AB-38S*26300 AB-39S*55100 BG-1S168 BG-2S227 BG-3S207 BG-4S229 GWA -1S95.5 GWA -2S120 GWA -3S9230 GWA -4S455 GWA -5S1110 GWA -7S152 GWA -8S923 GWA -9S†1130 GWA -14S61.5 GWA -15S40.9 j GWA -16S672 GWA -17S356 GWA -18S101 GWA -19S210 GWA -21S34.9 j GWA -22S315 GWA -23S108 GWA -26S468 GWA -24SA133 B AB-6AND GWA -6SNDCCR-1SNS CCR-2SNS CCR-3SNS CCR-4SANS CCR-5SNS CCR-6SNS CCR-7SNS CCR-8SNS CCR-9SNS CCR-11SNS CCR-14SNS CCR-16SNS CCR-17SNS CCR-18SNSCCR-20SNS CCR-21SNS CCR-22SNS CCR-23SNS FIGURE 11-22ISOCONCENTRATION M APIRON IN SHALLOW GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL IRO N CONCENTRATION (μg/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR IRON IS 300 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 835 µg/L. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 555555555 AB-2D27.1 j AB-4D30.2 j AB-10D39.4 j AB-12D305 AB-13D375 AB-14D282 AB-22D642 AB-26D405 AB-27D1030 AB-32D149 AB-33D446AB-34D164 AB-36D97.4 AB-37D336 AB-38D262 AB-39D29.7 j BG-1DA151 BG-2D94.7 BG-3D59.7 BG-4D171 GWA -2D111 GWA -3D195 GWA -5D126 GWA -6DA721 GWA -8D233 GWA -9D463 GWA -14DA306 GWA -16D102 GWA -17D206 GWA -18D40.8 j GWA -21DA92.9 GWA -22D235 GWA -24D318 GWA -26D88 AB-9DND AB-11DND AB-20DND AB-29DNDAB-30DND GWA -1DND GWA -4DND GWA -7DND GWA -15DND CCR-1DNSCCR-1DANS CCR-2DNS CCR-3DANS CCR-4DNS CCR-4DANS CCR-5DNS CCR-6DNS CCR-7DNS CCR-8DNS CCR-9DNS CCR-11DANS CCR-14DNS CCR-16DNS CCR-17DNS CCR-18DNS CCR-20DNS CCR-21DNS CCR-23DNS CCR-BG-1DNS FIGURE 11-23ISOCONCENTRATION M APIRON IN DEEP GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL IRO N CONCENTRATION (μg/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR IRON IS 300 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 555 µg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &<&< &< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AL1 42†95 8 284284284 300300 AB-21BRL104 AB-22BR454 AB-24BR143 AB-27BR180 AB-35BR31.5 j AB-38BR41.4 j BG-2BRA-2148 BG-4BR74.8 CIF W ELL613 GW A-4BR164 GWA-5BRA363 GW A-6BR60 j+ GW A-9BR69.2 GW A-24BR†436 PH WE LL1160 j AB-22BRL51.6 B GWA-6BRA296 AL115238 AL117118 AL119144 AL1 33273 AL1 3588.6 AL39 WELL B271 AL4770.9 AL575 AL88136 AL90283 AL9167.6 AL9352.3 GWA-1BRND PH ADJ BLDND AL1ND AL101ND AL111ND AL112ND AL120ND AL1 21ND AL124ND AL125ND AL1 26ND AL1 27ND AL1 29ND AL130ND AL131ND AL132ND AL137ND AL1 38ND AL139ND AL3ND AL40ND AL41ND AL42ND AL44ND AL45ND AL48ND AL50 WELL AND AL50 WELL BND AL50 WELL CND AL85ND AL89ND AL92ND AL94ND AL96ND AL97ND AL98ND AL99ND AL39 WELL AND NOT ES:THE NORTH CAROLINA 2 L FOR IRON IS 300 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 284 µg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS AND SAMPLE ANALYTICAL RESULTSREFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). WAT ER SUPP LY WELL SAMPL ED BY NCDEQ BE TWEEN FEBRUARY 2015 AND OCTOBER2015. FIGURE 11-24ISOCONCENTRATION M APIRON IN BEDROCK GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND &< &< &< AL13652.8 AL14058.4 AL1759.3 AL56†92 0 AL660.8 AL6056.9AL63†43 5 AL6885.9AL6975.8 AL7954.9 AL8459.8 GWA-21BR192 AB-4BRND AB-14BRND AL1 00ND AL1 02ND AL11ND AL110ND AL113ND AL114ND AL118ND AL12ND AL1 23ND AL14ND AL141ND AL15ND AL16ND AL19ND AL2ND AL20ND AL21ND AL22ND AL23ND AL24ND AL25ND AL26ND AL27ND AL28ND AL29ND AL30ND AL31ND AL32ND AL33ND AL34ND AL49ND AL51ND AL52ND AL53ND AL54ND AL55ND AL57ND AL58ND AL59ND AL61NDAL62NDAL64NDAL65ND AL66ND AL67ND AL7ND AL70ND AL71ND AL72ND AL73ND AL74ND AL75ND AL76ND AL77ND AL78ND AL8ND AL81ND AL82ND AL83ND AL9ND SEE INSET INSETSCALE: 1" = 500 ' NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT DETECTED ABOVE REPORTING LIMITND TOTAL IRO N CONCENTRATION (μg/L)1 NOT SAMPLEDNS &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &< &<&< &<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 578 578578AB-1R2.8 j AB-251 AB-4S152 AB-520 AB-6A11.2 AB-6R27.7 AB-9S9180 AB-10S770 AB-12S32 AB-13S17.5 AB-20S*209 AB-21S*1190 AB-21SL*218 AB-22S1160 AB-23S*200 AB-24S*527 AB-24SL*53.1 AB-25S*214 AB-25SL*39.1 AB-26S219 AB-27S*2920AB-28S*2390 AB-29S*5390AB-30S*1160 AB-31S41.1 AB-32S5420 AB-33S*7640AB-34S*7120 AB-35S*8290 AB-36S752AB-37S*52.1 AB-38S*1710 AB-39S*4960 BG-1S7.1 BG-2S8.3 BG-3S32.6 BG-4S38 GWA -1S15.8 GWA -2S160 GWA -3S2160 GWA -4S488 GWA -5S4310 GWA -6S166000 GWA -7S333 GWA -8S21.9 GWA -9S†719 GWA -14S30.7 GWA -15S122 GWA -16S†608 GWA -17S8.9 GWA -18S60.6 GWA -19S23.1 GWA -21S157 GWA -22S†625 GWA -23S27.6 GWA -26S22 GWA -24SA143 AB-8ND CCR-1SNS CCR-2SNS CCR-3SNS CCR-4SANS CCR-5SNS CCR-6SNS CCR-7SNS CCR-8SNS CCR-9SNS CCR-11SNS CCR-14SNS CCR-16SNS CCR-17SNS CCR-18SNS CCR-20SNS CCR-21SNS CCR-22SNS CCR-23SNS FIGURE 11-25ISOCONCENTRATION M APMANGANESE IN SHALLOW GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL MANGANESE CONCENTRATION (μg/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR MA NGANESE IS 50 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 578 µg/L. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL60.460.460.4 60.4 AB-4D2.8 j AB-9D4.8 j AB-10D3.2 j AB-12D8.3 AB-13D9.9 AB-14D13.6 AB-20D3.2 j AB-22D153 AB-26D114 AB-27D126 AB-29D7.2AB-30D4.3 j AB-32D16.6 AB-33D59.9AB-34D5.3 AB-36D4.2 j AB-37D8.7 AB-38D70.8 AB-39D25.2 BG-1DA5.7 BG-2D5.4 BG-3D3.4 j BG-4D†154 GWA -1D10 GWA -2D10.8 GWA -3D19.1 GWA -4D14.7 GWA -5D53.1 GWA -6DA433 GWA -7D6.7GWA-8D7.3 GWA -9D26.5 GWA -14DA18.8 GWA -15D4.7 j GWA -16D6.6 GWA -17D81 GWA -18D18.3 GWA -21DA11.5 GWA -22D35.5 GWA -24D17.9 GWA -26D†176 AB-2DND AB-11DND CCR-1DNSCCR-1DANS CCR-2DNS CCR-3DANS CCR-4DNS CCR-4DANS CCR-5DNS CCR-6DNS CCR-7DNS CCR-8DNS CCR-9DNS CCR-11DANS CCR-14DNS CCR-16DNS CCR-17DNS CCR-18DNS CCR-20DNS CCR-21DNS CCR-23DNS CCR-BG-1DNS FIGURE 11-26ISOCONCENTRATION M APMANGANESE IN DEEP GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL MANGANESE CONCENTRATION (μg/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR MA NGANESE IS 50 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 60.4 µg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &<&< &< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AL14221.3 39.1 50AB-21BRL74.1 AB-22BR123 AB-24BR163 AB-27BR324 AB-35BR2.6 j AB-38BR106BG-2BRA-228.8 BG-4BR5.5 CIF WELL101 GWA-1BR6.6 GW A-4BR68 GWA-5BRA53.4 GW A-6BR129 GW A-9BR20.4GWA-24BR34.6 PH WELL17.8 j AB-22BRL6 GWA-6BRA124 AL11.1 AL1016.9 AL1111.2 AL1120.65 AL11523.9 AL1172.6 AL1196.6 AL1208.9 AL1211 AL1256.7 AL1290.87 AL1301.1 AL1 335.2 AL1 353 AL1 394.1 AL30.54 AL39 WELL B8.9 AL401.3 AL449.2 AL450.6 AL472.6 AL482.5 AL88†34 .6 AL908.4 AL910.5 AL920.5 AL935.2 AL975.3 AL986.43 PH ADJ BLDND AL124ND AL126ND AL127ND AL131ND AL1 32ND AL1 37ND AL138ND AL41ND AL42ND AL5ND AL50 WELL AND AL50 WELL BND AL50 WELL CND AL85ND AL89ND AL94ND AL96ND AL99ND AL39 WELL AND NOT ES:THE NORTH CAROLINA 2 L FOR MA NGANESE IS 50 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 39.1 µg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS AND SAMPLE ANALYTICAL RESULTSREFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). WAT ER SUPP LY WELL SAMPL ED BY NCDEQ BE TWEEN FEBRUARY 2015 AND OCTOBER2015. FIGURE 11-27ISOCONCENTRATION M APMANGANESE IN BEDROCK GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND &< &< &< 3 9.1 AB-4BR459 AL1130.66 AL1140.97 AL120.8 AL1 230.74 AL1360.82 AL1402 AL1411.8 AL151.8 AL160.87 AL171.7 AL191.1 AL20.92 AL231.1 AL260.68 AL271.2 AL290.65 AL311.1 AL321.1 AL490.91 AL510.58 AL520.73 AL541.3 AL569.9 AL571.3 AL584.4 AL591.9AL608.6 AL610.57 AL632.74 AL641.6AL663.9 AL670.66 AL682.8AL691.9 AL727.7 AL730.72 AL742.2 AL751 AL761.5 AL770.54 AL781AL790.71 AL825.9 AL816.5 AL821.7 AL831.5 AL8415.7 GW A-21BR†27 8 AB-14BRND AL1 00ND AL1 02ND AL11ND AL110ND AL118ND AL14ND AL20ND AL21ND AL22NDAL24ND AL25ND AL28ND AL30ND AL33ND AL34ND AL53ND AL55ND AL6ND AL62NDAL65ND AL7ND AL70ND AL71ND AL9ND SEE INSET INSETSCALE: 1" = 500 ' NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT DETECTED ABOVE REPORTING LIMITND TOTAL MANGANESE CONCENTRATION (μg/L)1 NOT SAMPLEDNS &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &<&< &<&<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 0.85AB-1R0.1 8 j,B AB-4S0.1 2 j AB-6R0.1 5 j AB-9S0.14 j AB-20S*13.7 AB-21S*317AB-21SL*2950 AB-23S*50.3 AB-24S*9.5 AB-24SL*57.3 AB-25S*180 AB-25SL*157 AB-26S0.12 j AB-27S*3.4AB-28S*3.7 AB-29S*2.6AB-30S*7.1 AB-32S0.1 5 j AB-33S*6.5 AB-35S*4.5AB-36S2.3 AB-37S*0.11 j AB-38S*2.6 AB-39S*0.2 3 j,B BG-2S0.1 3 j,B BG-3S0.31 j BG-4S0.29 j CCR-1S0.1 4 j CCR-8S0.1 2 j CCR-11S4.1 CCR-16S0.28 j GWA -8S0.12 j GWA -9S0.1 4 j GWA -15S0.17 j GWA -16S†8.2 GWA -17S0.4 2 j GWA -18S0.6 8 B GWA -19S0.4 3 j GWA -26S0.83 AB-2ND AB-5ND AB-6AND AB-10SND AB-12SND AB-13SND AB-21S*ND AB-22SND AB-31SND AB-34S*ND BG-1SND CCR-2SND CCR-3SND CCR-4SAND CCR-5SND CCR-6SND CCR-7SND CCR-9SND CCR-14SND CCR-17SND CCR-18SND CCR-20SND CCR-21SND CCR-22SND CCR-23SND GWA -1SND GWA -2SND GWA -3SND GWA -4SND GWA -5SND GWA -6SND GWA -7SND GWA -14SND GWA -21SND GWA -22SND GWA -23SND GWA -24SAND FIGURE 11-28ISOCONCENTRATION M APMOLYBDENUM IN SHALLOW GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND STANDARD CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL MOLYBDENUM C ONCENTRATION (μg/L)1 NOT ES:NO NORTH CA ROL INA 2L OR INTERIM MAXIMUM ALLOWABLE CONCENTRATIONESTABLISHED F OR MOLYBDENUM. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.85 μg/L. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &< &< &<&< &<&< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AB-4D0.13 j AB-9D0.1 9 j AB-12D0.2 5 j,B AB-13D0.94 AB-14D0.22 j AB-20D2.5 B AB-22D1.5 AB-26D1.6 AB-27D16.3 AB-29D0.37 jAB-30D0.1 8 j AB-32D0.73 AB-33D1.4AB-34D0.75 B AB-36D1.5 AB-37D1.6 AB-38D0.56 AB-39D0.1 8 j,B BG-1DA1.9 BG-2D1.3 BG-3D0.2 7 j BG-4D7.7 CCR-1D1.7CCR-1DA1.8 CCR-2D1.5 CCR-3DA3.9 CCR-4D1.3 CCR-4DA1 CCR-5D0.92 CCR-6D0.97 CCR-7D0.6 CCR-8D0.26 j CCR-9D4.3 CCR-11DA0.7 CCR-14D2.8 CCR-16D1.2 CCR-17D0.4 5 j CCR-18D1.2 CCR-20D0.7 CCR-23D0.9 CCR-BG-1D14.4 GWA -1D0.5 GWA -2D0.26 j GWA -3D1.3 GWA -4D0.3 8 j,B GWA -5D0.78 GWA -6DA1.1 GWA -7D0.39 j GWA -8D0.7 GWA -9D1.5 GWA -14DA1.4 GWA -16D0.4 1 j,B GWA -17D1 B GWA -18D0.63 B GWA -21DA1.3 GWA -22D1.4 GWA -24D0.41 j GWA -26D16.3 AB-2DND AB-10DND AB-11DND CCR-21DND GWA -15DND FIGURE 11-29ISOCONCENTRATION M APMOLYBDENUM IN DEEP GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND STANDARD CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL MOLYBDENUM C ONCENTRATION (μg/L)1 NOT ES:NO NORTH CA ROL INA 2L OR INTERIM MAXIMUM ALLOWABLE CONCENTRATIONESTABLISHED F OR MOLYBDENUM. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 30 μg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &< &< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AL142ND 4.7 AB-21BRL11.1 AB-22BR1.5 AB-24BR2.5 AB-27BR3.6 AB-35BR2.4 AB-38BR2.1 BG-2BRA-25.4 BG-4BR2.4 CIF W ELL1.2 GWA-1BR1.1 GW A-4BR1.6 GWA-5BRA3.7 GW A-6BR2.2 j GWA-9BR†9.5 GWA-24BR4.3 AB-22BRL2.5 GWA-6BRA1.9 AL10.63 AL1122.9 AL1152.7 AL1170.68 AL1193.4 AL1203.6 AL1240.56 AL125†7 AL39 WELL B3.7 AL410.69 AL52 AL50 WELL A4.3 AL930.61 AL9 4†5.1 AL9 7†4.7 AL983.95 PH WELLND AL1 01ND AL111ND AL1 21ND AL126ND AL127ND AL1 29ND AL1 30ND AL131ND AL1 32ND AL1 33ND AL1 35ND AL1 37ND AL138ND AL139ND AL3ND AL40ND AL42ND AL44NDAL45ND AL47ND AL48ND AL50 WELL BND AL50 WELL CND AL85ND AL88ND AL89NDAL90ND AL91ND AL92ND AL96ND AL99ND AL39 WELL AND NOT ES:NO NORTH CA ROL INA 2L OR INTERIM MAXIMUM ALLOWABLE CONCENTRATIONESTABLISHED F OR MOLYBDENUM. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 4.7 μg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS AND SAMPLE ANALYTICAL RESULTSREFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). WAT ER SUPP LY WELL SAMPL ED BY NCDEQ BE TWEEN FEBRUARY 2015 AND OCTOBER FIGURE 11-30ISOCONCENTRATION M APMOLYBDENUM IN BEDRO CK GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND &< &< &< AB-4BR4.2 AB-14BR13.6 AL1 000.89 AL1101 AL1130.64 AL1140.64 AL21.2 AL222.2 AL230.54 AL242.5 AL280.95 AL560.24 AL620.45 AL630.27 AL651.1 AL671.2 AL680.63 GWA-21BR7.1 AL1 02ND AL11ND AL118ND AL12ND AL1 23ND AL136ND AL14ND AL140ND AL141ND AL15ND AL16ND AL17ND AL19ND AL20ND AL21ND AL25ND AL26ND AL27ND AL29ND AL30ND AL31ND AL32ND AL33ND AL34ND AL49ND AL51ND AL52ND AL53ND AL54ND AL55ND AL57ND AL58ND AL59ND AL6ND AL60NDAL61NDAL64ND AL66ND AL69ND AL7ND AL70ND AL71ND AL72ND AL73ND AL74ND AL75ND AL76ND AL77ND AL78NDAL79ND AL8ND AL81ND AL82ND AL83ND AL84ND AL9ND SEE INSET INSETSCALE: 1" = 500 ' STANDARD CONTOUR PBTV CONTOUR NOT DETECTED ABOVE REPORTING LIMITND TOTAL MOLYBDENUM C ONCENTRATION (μg/L)1 NOT SAMPLEDNS &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &< &<&< &<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 4 .0 2 4.02 4.02100AB-1R2.5 AB-21.4 AB-4S0.98 AB-54.9 AB-6A1.1 AB-6R2.1 AB-9S0.74 AB-10S0.84 AB-13S2.4 AB-20S*32.4 AB-21S*1.6 AB-21SL*3.7 AB-22S3.8 AB-23S*0.34 j AB-24S*1.8 AB-24SL*0.57 AB-25S*6.4 AB-25SL*1.7 AB-26S3.9 AB-27S*0.75AB-28S*1.9 AB-29S*3.8AB-30S*1.3 AB-31S0.99 AB-32S0.77 AB-33S*1.9 AB-35S*0.57 AB-36S7.4AB-37S*1.3 AB-38S*1.2 BG-1S0.89 BG-2S4.2 BG-3S2.5 BG-4S2.4 GWA -1S0.84 GWA -2S0.82 GWA -4S0.49 j GWA -5S3.6 GWA -6S821 D3 GWA -7S11.1GWA-8S9.5 GWA -9S2.7 GWA -14S5.6 GWA -15S3.6 GWA -16S2.8 GWA -17S2 GWA -18S2.3 GWA -19S2.3 GWA -21S†6.1 GWA -22S2.6 GWA -23S3.9 GWA -26S1 GWA -24SA†4.9 AB-8ND AB-12SND AB-34S*ND AB-39S*ND GWA -3SND CCR-1SNS CCR-2SNS CCR-3SNS CCR-4SANS CCR-5SNS CCR-6SNS CCR-7SNS CCR-8SNS CCR-9SNS CCR-11SNS CCR-14SNS CCR-16SNS CCR-17SNS CCR-18SNS CCR-20SNS CCR-21SNS CCR-22SNS CCR-23SNS FIGURE 11-31ISOCONCENTRATION M APNICKEL IN SHAL LOW GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND NICKEL CONCENTRATION (µg/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR NICKEL IS 100 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 4.02 μg/L. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AB-2D1.6 AB-4D3.2 AB-10D0.56 AB-11D2.8 AB-13D2.1 AB-14D†13.3 AB-22D4.3 AB-26D1.6 AB-27D2 AB-29D3.5 AB-32D3.1 AB-33D1.7AB-34D0.4 7 j AB-36D0.98 AB-38D2.1 AB-39D0.73 BG-1DA3.7 BG-2D0.89 BG-4D1.9 GWA -1D1 GWA -2D0.4 6 j GWA -6DA1.1 GWA -7D5.8 GWA -8D4.1 GWA -9D0.92 GWA -14DA3.5 GWA -16D0.5 j GWA -17D1.4 GWA -18D0.9 GWA -21DA1.9 GWA -22D†20.8 GWA -24D0.71 GWA -26D0.69 AB-9DND AB-12DND AB-20DND AB-30DND AB-37DND BG-3DND GWA -3DND GWA -4DND GWA -5DND GWA -15DND CCR-1DNSCCR-1DANS CCR-2DNS CCR-3DANS CCR-4DNS CCR-4DANS CCR-5DNS CCR-6DNS CCR-7DNS CCR-8DNS CCR-9DNS CCR-11DANS CCR-14DNS CCR-16DNS CCR-17DNS CCR-18DNS CCR-20DNS CCR-21DNS CCR-23DNS CCR-BG-1DNS FIGURE 11-32ISOCONCENTRATION M APNICKEL IN DEEP GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND NICKEL CONCENTRATION (µg/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR NICKEL IS 100 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 8.1 μg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &<&< &< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AL1 420.71 3 .4 3.4AB-21BRL0.61 AB-22BR2.4 AB-24BR1.8 AB-27BR4.2 AB-35BR0.62 AB-38BR1.7 BG-2BRA-24.6 BG-4BR1.7 CIF WELL4.9 GW A-4BR4.3 GWA-5BRA1.3 GWA-9BR0.74GWA-24BR2.1 PH WELL0.46 j AB-22BRL1.9 GWA-6BRA2.1 AL1011.6 AL1110.56 AL1150.89 AL1171.2 AL1190.81 AL441.1 AL50 WELL C1 AL880.62 AL900.72 AL980.6 GWA-1BRND GW A-6BRND PH ADJ BLDND AL1ND AL112ND AL120ND AL1 21ND AL1 24ND AL125ND AL1 26ND AL127ND AL129ND AL130ND AL131ND AL1 32ND AL133ND AL135ND AL1 37ND AL138ND AL139ND AL3ND AL39 WELL BND AL40ND AL41ND AL42ND AL45ND AL47ND AL48ND AL5ND AL50 WELL AND AL50 WELL BND AL85ND AL89ND AL91ND AL92ND AL93ND AL94ND AL96ND AL97ND AL99ND AL39 WELL AND NOT ES:THE NORTH CAROLINA 2 L FOR NICKEL IS 100 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 3.4 μg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS AND SAMPLE ANALYTICAL RESULTSREFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). WAT ER SUPP LY WELL SAMPL ED BY NCDEQ BE TWEEN FEBRUARY 2015 AND OCTOBER2015. FIGURE 11-33ISOCONCENTRATION M APNICKEL IN BEDRO CK GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND &< &< &< AB-4BR1.5 AL1 020.79 AL110.64 AL1181.1 AL1 231.1 AL1360.57 AL1410.58 AL230.51AL250.53AL270.53 AL280.2 AL330.53 AL530.58 AL561.7 AL600.96AL620.42 AL630.81 AL642.6 AL661.2 AL700.57 AL730.66 AL760.45 AL80.7 AL810.95 AL820.71 AL831.3 GWA-21BR0.66 AB-14BRND AL1 00ND AL110ND AL113ND AL114ND AL12ND AL14ND AL140ND AL15ND AL16ND AL17ND AL19ND AL2ND AL20ND AL21ND AL22NDAL24ND AL26ND AL29ND AL30ND AL31ND AL32ND AL34ND AL49ND AL51ND AL52ND AL54ND AL55ND AL57ND AL58ND AL59ND AL6ND AL61NDAL65ND AL67ND AL68NDAL69ND AL7ND AL71ND AL72NDAL74ND AL75ND AL77ND AL78NDAL79ND AL84ND AL9ND SEE INSET INSETSCALE: 1" = 500 ' NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT DETECTED ABOVE REPORTING LIMITND NICKEL CONCENTRATION (µg/L)1 NOT SAMPLEDNS &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &<&< &<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AB-1R6.3 AB-24.7 AB-4S6.0 AB-54.5 AB-6A6.1 AB-6R6.5 AB-86.1 AB-9S6.2 AB-10S6.1 AB-12S4.8 AB-13S5.5 AB-20S*6.6 AB-21S*6.7 AB-21SL*7.8 AB-22S5.1 AB-23S*8.4 AB-24S*6.9 AB-24SL*7.5 AB-25S*6.2 AB-25SL*8.4 AB-26S5.6 AB-27S*6.6AB-28S*5.3 AB-29S*5.2AB-30S*7.6 AB-31S5.8 AB-32S5.3 AB-33S*6.3AB-34S*6.4 AB-35S*6.5 AB-36S5.8 AB-37S*6.1 AB-38S*7.0 AB-39S*6.5 BG-1S5.8 BG-2S6.0 BG-3S6.3 BG-4S5.5 CCR-1S5.1 CCR-2S5.6 CCR-3S5.2 CCR-4SA3.6 CCR-5S4.1 CCR-6S2.8 CCR-7S5.3 CCR-8S5.2 CCR-9S4.9 CCR-11S6.3 CCR-14S4.8 CCR-16S6.6 CCR-17S6.2 CCR-18S4.5 CCR-20S4.8 CCR-21S4.9 CCR-22S4.7 CCR-23S5.4 GWA -1S5.0 GWA -2S5.1 GWA -3S5.9 GWA -4S5.4 GWA -5S5.4 GWA -6S3.6 GWA -7S4.1GWA-8S6.0 GWA -9S5.2 GWA -14S4.3 GWA -15S5.9 GWA -16S6.4 GWA -17S5.5 GWA -18S7.3 GWA -19S5.9 GWA -21S4.8 GWA -22S5.1 GWA -23S4.6 GWA -26S7.0 GWA -24SA5.5 FIGURE 11-34ISOCONCENTRATION M APpH IN SHALLO W GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND pH CONCENTRATION (S.U.)1 NOT ES:THE NORTH CAROLINA 2 L FOR pH IS 6.5-8.5 S.U. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 5.2 - 7.5 S.U. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &< &< &<&< &<&< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AB-2D6.5 AB-4D6.1 AB-9D6.6 AB-10D6.1 AB-11D6.0 AB-12D6.5 AB-13D6.2 AB-14D4.9 AB-20D7.7 AB-22D6.2 AB-26D7.9 AB-27D6.4 AB-29D5.7AB-30D6.6 AB-32D6.8 AB-33D7.4AB-34D7.0 AB-36D7.5 AB-37D7.0 AB-38D6.2 AB-39D5.9 BG-1DA7.4 BG-2D7.1 BG-3D6.4 BG-4D7.0 CCR-1D7.2CCR-1DA6.1 CCR-2D6.8 CCR-3DA7.1 CCR-4D4.6 CCR-4DA6.7 CCR-5D6.9 CCR-6D6.9 CCR-7D7.8 CCR-8D6.5 CCR-9D7.5 CCR-11DA6.6 CCR-14D8.4 CCR-16D6.9 CCR-17D7.1 CCR-18D6.4 CCR-20D6.8 CCR-21D6.5 CCR-23D6.8 CCR-BG-1D7.5 GWA -1D6.7 GWA -2D6.7 GWA -3D7.7 GWA -4D6.8 GWA -5D6.8 GWA -6DA7.3 GWA -7D6.4GWA-8D6.6 GWA -9D6.8 GWA -14D4.7GWA-14DA7.7 GWA -15D6.2 GWA -16D6.2 GWA -17D6.8 GWA -18D6.8 GWA -21DA7.4 GWA -22D6.7 GWA -24D7.5 GWA -26D7.4 FIGURE 11-35ISOCONCENTRATION M APpH IN D EEP GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND pH CONCENTRATION (S.U.)1 NOT ES:THE NORTH CAROLINA 2 L FOR pH IS 6.5-8.5 S.U. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 6.7 - 8.4 S.U. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &<&< &< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AL1426.6 AB-21BRL8.4 AB-22BR7.7 AB-24BR7.4 AB-27BR7.5 AB-35BR7.6 AB-38BR6.7 BG-2BRA-27.5 BG-4BR7.2 CIF W ELL6.7 GWA-1BR7.2 GW A-4BR8.3 GWA-5BRA7.9 GW A-6BR6.9 GW A-9BR7.5GWA-24BR8.3 PH ADJ BLD6.6 PH WELL6.1 AB-22BRL7.0 GWA-6BRA6.7 AL16.9 AL1016.6 AL1116.6 AL112†7.8 AL115†7.6 AL1176.4 AL1197.4 AL1208.1 AL1216.9 AL1246.6 AL1258.5 AL1266.9 AL1276.8 AL1296.4 AL1306.4 AL1 316.9 AL1 326.3 AL1 337.0 AL1 356.5 AL1 376.7 AL1386.6 AL1 396.3 AL36.6 AL39 WELL B8.1 AL406.2 AL416.5 AL426.5 AL445.8 AL456.7 AL476.4 AL486.6 AL56.8 AL50 WELL A7.1 AL50 WELL B6.6 AL50 WELL C6.1 AL856.7 AL886.4 AL896.8AL906.5 AL917.1 AL926.3 AL936.7 AL9 4†7.7 AL966.7 AL978.0 AL988.0 AL996.6 AL39 WELL A6.2 NOT ES:THE NORTH CAROLINA 2 L FOR pH IS 6.5-8.5 S.U. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 7.5 - 7.8 S.U. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS AND SAMPLE ANALYTICAL RESULTSREFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). WAT ER SUPP LY WELL SAMPL ED BY NCDEQ BE TWEEN FEBRUARY 2015 AND OCTOBER2015. FIGURE 11-36ISOCONCENTRATION M APpH IN B EDROCK GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND &< &< &< AB-4BR6.5 AB-14BR8.2 AL1 007.2 AL1 026.4 AL116.5 AL1106.8 AL1136.9 AL1146.9 AL1186.4 AL126.1 AL1 236.3 AL1366.2 AL145.9 AL1406.2 AL1416.8 AL156.3 AL166.4 AL176.5 AL196.4 AL27.0 AL206.8 AL216.9 AL227.4 AL237.0 AL247.3 AL256.3 AL266.7 AL276.5 AL287.0 AL296.6 AL306.5 AL316.3 AL326.2 AL336.5 AL346.7 AL496.8 AL516.3 AL526.3 AL536.3 AL546.2 AL556.5 AL565.8 AL576.5 AL586.7 AL596.6 AL66.5 AL606.4AL616.5AL626.6 AL636.0 AL646.1AL656.6 AL666.4 AL677.4 AL686.7AL696.5 AL76.9 AL706.5 AL716.5 AL726.5 AL736.5 AL746.3 AL756.8 AL766.4 AL776.4 AL786.1AL796.3 AL86.4 AL816.3 AL826.3 AL836.2 AL846.8 AL96.2 GWA-21BR8.2 SEE INSET INSETSCALE: 1" = 500 ' NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT DETECTED ABOVE REPORTING LIMITND pH CONCENTRATION (S.U.)1 NOT SAMPLEDNS &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &<&< &<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 0.50.50.50.5 0.5 20 AB-1R2.3 AB-4S0.4 1 j AB-6A0.57 AB-10S0.48 jAB-20S*49.1 AB-21S*0.63 AB-23S*0.24 j AB-26S0.32 j AB-28S*17.3 AB-35S*0.6AB-36S0.32 j BG-2S†1.8 CCR-2S0.44 j CCR-3S2.3 CCR-4SA526 CCR-5S41.7 CCR-6S5.7 CCR-7S0.8 CCR-8S1.2 CCR-9S0.85 CCR-11S1.2 CCR-14S0.6 CCR-16S0.62 CCR-18S3.3 CCR-20S0.53 CCR-21S0.72 GWA -4S0.6 GWA -6S765 D3 GWA -7S14.1 GWA -19S0.3 4 j GWA -22S0.38 j AB-2ND AB-5ND AB-6RND AB-8ND AB-9SND AB-12SND AB-13SND AB-21SL*ND AB-22SND AB-24S*ND AB-24SL*ND AB-25S*ND AB-25SL*ND AB-27S*ND AB-29S*NDAB-30S*ND AB-31SND AB-32SND AB-33S*ND AB-34S*NDAB-37S*ND AB-38S*ND AB-39S*ND BG-1SND BG-3SND BG-4SND CCR-1SND CCR-17SND CCR-22SND CCR-23SND GWA -1SND GWA -2SND GWA -3SND GWA -5SND GWA -8SND GWA -9SND GWA -14SND GWA -15SND GWA -16SND GWA -17SND GWA -18SND GWA -21SND GWA -23SND GWA -26SND GWA -24SAND FIGURE 11-37ISOCONCENTRATION M APSELENIUM IN SHALLOW GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND SELENIUM CONCENTRATION (µg/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR SELENIUM IS 20 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS SET AT REPORTING LIMIT OF 0.5μg/L. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &< &< &<&< &<&< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 0.5 AB-9D2.2 AB-12D†0.8 AB-14D0.4 7 j AB-22D0.34 j AB-26D0.44 j AB-27D2.4 AB-32D0.4 3 j AB-33D0.66 AB-39D3.3 CCR-3DA0.34 j CCR-8D0.37 j CCR-11DA0.37 j GWA -4D1.6 GWA -7D6.6 GWA -18D0.3 6 j GWA -24D0.3 5 j AB-2DND AB-4DND AB-10DND AB-11DND AB-13DND AB-20DND AB-29DNDAB-30DND AB-34DND AB-36DND AB-37DND AB-38DND BG-1DAND BG-2DND BG-3DND BG-4DND CCR-1DNDCCR-1DAND CCR-2DND CCR-4DND CCR-4DAND CCR-5DND CCR-6DND CCR-7DND CCR-9DND CCR-14DND CCR-16DND CCR-17DND CCR-18DND CCR-20DND CCR-21DND CCR-23DND CCR-BG-1DND GWA -1DND GWA -2DND GWA -3DND GWA -5DND GWA -6DAND GWA -8DND GWA -9DND GWA -14DAND GWA -15DND GWA -16DND GWA -17DND GWA -21DAND GWA -22DND GWA -26DND FIGURE 11-38ISOCONCENTRATION M APSELENIUM IN DEEP GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND SELENIUM CONCENTRATION (µg/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR SELENIUM IS 20 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS SET AT REPORTING LIMIT OF 0.5μg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &<&< &< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AL142ND 0 .5 GW A-4BR2.2 AL112†0.71 AL117†1.8 AL3 9 WELL B†1.6 AL50 W ELL A†0.66 AL94†1.7 AB-21BRLND AB-22BRND AB-24BRND AB-27BRND AB-35BRND AB-38BRND BG-2BRA-2ND BG-4BRND CIF W ELLND GWA-1BRND GWA-5BRAND GW A-6BRND GW A-9BRNDGWA-24BRND PH ADJ BLDND PH WELLND AB-22BRLND GWA-6BRAND AL1ND AL101ND AL111ND AL115ND AL119ND AL120ND AL1 21ND AL1 24ND AL1 25ND AL1 26ND AL1 27ND AL129ND AL130ND AL131ND AL132ND AL1 33ND AL1 35ND AL137ND AL138ND AL139ND AL3ND AL40ND AL41ND AL42ND AL44ND AL45ND AL47ND AL48ND AL5ND AL50 WELL BND AL50 WELL CND AL85NDAL88ND AL89ND AL90ND AL91ND AL92ND AL93ND AL96ND AL97ND AL98ND AL99ND AL39 WELL AND NOT ES:THE NORTH CAROLINA 2 L FOR SELENIUM IS 20 μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS SET AT REPORTING LIMIT OF 0.5μg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS AND SAMPLE ANALYTICAL RESULTSREFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). WAT ER SUPP LY WELL SAMPL ED BY NCDEQ BE TWEEN FEBRUARY 2015 AND OCTOBER FIGURE 11-39ISOCONCENTRATION M APSELENIUM IN BEDROCK GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND &< &< &< AL2†0.66 AL630.25AL65†0.52 AB-4BRND AB-14BRND AL1 00ND AL1 02ND AL11ND AL110ND AL113ND AL114ND AL118ND AL12ND AL1 23ND AL136ND AL14ND AL140ND AL141ND AL15ND AL16ND AL17ND AL19ND AL20ND AL21ND AL22ND AL23ND AL24ND AL25ND AL26ND AL27ND AL28ND AL29ND AL30ND AL31ND AL32ND AL33ND AL34ND AL49ND AL51ND AL52ND AL53ND AL54ND AL55ND AL56ND AL57ND AL58ND AL59ND AL6ND AL60NDAL61NDAL62NDAL64ND AL66ND AL67ND AL68NDAL69ND AL7ND AL70ND AL71ND AL72ND AL73ND AL74ND AL75ND AL76ND AL77ND AL78NDAL79ND AL8ND AL81ND AL82ND AL83ND AL84ND AL9ND GWA-21BRND SEE INSET INSETSCALE: 1" = 500 ' NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT DETECTED ABOVE REPORTING LIMITND SELENIUM CONCENTRATION (µg/L)1 NOT SAMPLEDNS &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &< &<&< &<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 286 AB-1R473 AB-23.9 j AB-4S40.2 AB-516.9 AB-6A206 AB-6R211 AB-9S158 AB-10S216 AB-13S53.8 AB-20S*2130 AB-21S*3490 AB-21SL*1770 AB-22S54.1 AB-23S*560 AB-24S*850 AB-24SL*714 AB-25S*1570 AB-25SL*1720 AB-26S212 AB-27S*1030AB-28S*1600 AB-29S*456AB-30S*1400 AB-31S268 AB-32S37.3AB-33S*3380AB-34S*1360 AB-35S*1820AB-36S604 AB-37S*130 AB-38S*977 AB-39S*281BG-1S30.2 BG-2S188 BG-3S263 BG-4S263 GWA -1S9 GWA -2S31.4 GWA -3S84.4 GWA -4S356 GWA -5S32.2 GWA -6S1670 GWA -7S18.4 GWA -8S411 GWA -9S60.7 GWA -14S5.3 GWA -15S157 GWA -16S199 GWA -17S97.2 GWA -18S178 GWA -19S119 GWA -21S24.6 GWA -22S6.7 GWA -23S5.1 GWA -26S69.9 GWA -24SA11 AB-12SND CCR-1SNS CCR-2SNS CCR-3SNS CCR-4SANS CCR-5SNS CCR-6SNS CCR-7SNS CCR-8SNS CCR-9SNS CCR-11SNS CCR-14SNS CCR-16SNS CCR-17SNS CCR-18SNS CCR-20SNS CCR-21SNS CCR-22SNS CCR-23SNS FIGURE 11-40ISOCONCENTRATION M APSTRONTIUM IN SHALLOW GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND STANDARD CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND STRONTIUM CONCENTRATION (µg/L)1 NOT ES:NO NORTH CA ROL INA 2L OR INTERIM MAXIMUM ALLOWABLE CONCENTRATIONESTABLISHED F OR STRONTIUM. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 286 µg/L. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 2002 0 0 AB-2D102 AB-4D176 AB-9D322 AB-10D205 AB-11D114 AB-12D158 AB-13D198 AB-14D57.1 AB-20D117 AB-22D380 AB-26D223 AB-27D523 AB-29D226AB-30D171 AB-32D201 AB-33D266 AB-34D132AB-36D111 AB-37D145 AB-38D368 AB-39D454 BG-1DA106 BG-2D†202 BG-3D†229 BG-4D†251 GWA -1D246 GWA -2D141 GWA -3D123 GWA -4D249 GWA -5D714 GWA -6DA868 GWA -7D526 GWA -8D254 GWA -9D109 GWA -14DA144 GWA -15D268 GWA -16D105 GWA -17D212 GWA -18D143 GWA -21DA118 GWA -22D†257 GWA -24D93.6 GWA -26D86.5 CCR-1DNS CCR-1DANS CCR-2DNS CCR-3DANS CCR-4DNS CCR-4DANS CCR-5DNS CCR-6DNS CCR-7DNS CCR-8DNS CCR-9DNS CCR-11DANS CCR-14DNS CCR-16DNS CCR-17DNS CCR-18DNS CCR-20DNS CCR-21DNS CCR-23DNS CCR-BG-1DNS FIGURE 11-41ISOCONCENTRATION M APSTRONTIUM IN DEEP GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND STANDARD CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND STRONTIUM CONCENTRATION (µg/L)1 NOT ES:NO NORTH CA ROL INA 2L OR INTERIM MAXIMUM ALLOWABLE CONCENTRATIONESTABLISHED F OR STRONTIUM. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 200 µg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &< &< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AL1 42†12 5 106106AB-21BRL90.5 AB-22BR272 AB-24BR106 AB-27BR146 AB-35BR128 AB-38BR395 BG -2BRA-2†18 1 BG-4BR98.5 CIF W ELL91.3 GWA-1BR223 GW A-4BR134 GWA-5BRA178 GW A-6BR696 GWA-9BR90GWA-24BR96.6 PH WELL778 AB-22BRL317 GWA-6BRA617 AL1†12 4 AL10172.5 AL111†120 AL112†18 7 AL115†3400 AL117†46 3 AL119†129 AL120†162 AL12167.1 AL124†198 AL125†111 AL126†118 AL127†13 0 AL129†22 5 AL130†10 6 AL1 3159.5 AL132†234 AL1 3389.9 AL135†180 AL137†155 AL138†21 5 AL1 3981.4 AL380.2 AL39 W ELL B†124 AL4068.5 AL4147.2 AL4280.3 AL4431.8AL4577 AL4 7†276 AL48†15 8 AL5†110 AL50 WELL A91.4 AL50 WELL B62.9 AL5 0 WELL C†13 3 AL8569.2 AL8883.2 AL8 9†113 AL9 0†142 AL9 1†127 AL92†12 5 AL9381.8 AL9 4†131 AL9 6†123 AL97†112 AL9834 AL99†12 1 AL39 WELL A103 NOT ES:NO NORTH CA ROL INA 2L OR INTERIM MAXIMUM ALLOWABLE CONCENTRATIONESTABLISHED F OR STRONTIUM. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 106 μg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS AND SAMPLE ANALYTICAL RESULTSREFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). WAT ER SUPP LY WELL SAMPL ED BY NCDEQ BE TWEEN FEBRUARY 2015 AND OCTOBER FIGURE 11-42ISOCONCENTRATION M APSTRONTIUM IN BEDROCK GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND &< &< &< 106 AB-4BR278 AB-14BR81.6 AL100†161 AL102†116 AL11†15 3 AL110†11 0 AL113†16 9 AL114†162 AL118†18 3 AL12†28 6 AL1 23†173 AL136†37 8 AL14†36 0 AL1 40†18 9 AL141104 AL1 5†227 AL1 6†128 AL1 7†168 AL1 9†233 AL2†14 2 AL20†16 0 AL2 1†158 AL22†10 9 AL2 3†110 AL2480.7 AL25†24 0 AL2 6†187 AL2 7†221 AL2875 AL2986.4 AL3 0†220 AL3190 AL3 2†157 AL33†12 7 AL3 4†146 AL49†14 1 AL51†34 6 AL5 2†232 AL53†14 2 AL5 4†251 AL55†13 1 AL56†23 0 AL5 7†205 AL58†20 3 AL5 9†183 AL694 AL60†31 7 AL6 1†208 AL62†20 5AL63†27 4 AL6 4†424 AL6 5†180 AL66†30 6 AL6 7†132 AL68†18 2AL69†219 AL7†18 0 AL7 0†265 AL7 1†256 AL7 2†265 AL73†18 1 AL7 4†293 AL7582 AL76†10 9 AL7 7†238 AL7886.1 AL79†15 7 AL8†237 AL81†22 8 AL8 2†392 AL8 3†289 AL84†18 5 AL9†300 GW A-21BR†15 4 SEE INSET INSETSCALE: 1" = 500 ' STANDARD CONTOUR PBTV CONTOUR NOT DETECTED ABOVE REPORTING LIMITND STRONTIUM CONCENTRATION (µg/L)1 NOT SAMPLEDNS &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &<&< &<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 3.643.643 . 6 4 3.642 5 0 AB-1R219 AB-20.6 1 j AB-4S8.1 AB-51.3 AB-6A28.6 AB-6R26.3 AB-831 AB-9S38.4 AB-10S17.3 AB-12S0.16 AB-20S*214 AB-21S*75.8 AB-21SL*140 AB-22S2.2AB-23S*9.9 00001 AB-24S*20.1 AB-24SL*20.6 AB-25S*62.4 AB-25SL*59.5 AB-26S72.6 AB-27S*21.1AB-28S*132 AB-29S*44.5AB-30S*46.7 AB-31S118 AB-32S2.7 AB-33S*383AB-34S*164 AB-35S*234AB-36S18.5 AB-37S*2.3 AB-38S*13.4 AB-39S*0.9 8 j BG-1S0.5 4 j BG-3S0.76 j BG-4S0.72 j CCR-1S2.1 CCR-2S1.3 CCR-3S115 CCR-4SA1810 M6 CCR-5S684 CCR-6S1320 CCR-7S164 CCR-8S165 CCR-9S157 CCR-11S81.9 CCR-14S51.8 CCR-16S111 CCR-17S45.2 CCR-18S121 CCR-20S15.6 CCR-21S18.1 CCR-22S3.4 CCR-23S0.9 j GWA -3S35.3 GWA -4S146 GWA -5S3.7 GWA -6S1790 GWA -7S108 GWA -8S1.2 GWA -9S†21.1 GWA -15S10.9 GWA -16S1.2 GWA -17S5.4 GWA -18S2 GWA -19S0.7 6 j GWA -21S1.1 GWA -22S1.3 GWA -23S1.2 GWA -26S1 AB-13SND BG-2SND GWA -1SND GWA -2SND GWA -14SND GWA -24SAND FIGURE 11-43ISOCONCENTRATION M APSULFATE IN SHALLOW GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND SULFATE CONCENTRATION (mg/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR SULFATE IS 250 mg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 3.64 mg/L. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &< &< &<&< &<&< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL16.2250 AB-2D0.6 6 j AB-4D2 AB-9D46.4 AB-10D23.7 AB-11D0.57 j AB-12D4.2 AB-13D0.68 j AB-14D†27.1 AB-20D4.7 AB-22D43.3 AB-26D32.9 AB-27D67 AB-29D45.8 AB-30D25.2 AB-32D23.5 AB-33D6.5AB-34D1.6 AB-36D4 AB-37D2.7 AB-38D15.5 AB-39D32.5 BG-1DA1.6 BG-2D1.1 BG-3D0.7 6 j BG-4D1.9 CCR-1D25.4CCR-1DA1.3 CCR-2D15.6 CCR-3DA10.1 CCR-4D161 CCR-4DA169 CCR-5D47 CCR-6D4.9 CCR-7D87.7 CCR-8D88.5 CCR-9D157 CCR-11DA85.6 CCR-14D43.5 CCR-16D39.3 CCR-17D44.3 CCR-18D55.3 CCR-20D37.6 CCR-21D35.3 CCR-23D1.8 CCR-BG-1D0.57 j GWA -1D11.2 GWA -2D4.7 GWA -3D9.4 GWA -4D61.2 GWA -5D30 GWA -6DA270 M6 GWA -7D105GWA-8D1.3 GWA -9D2.7 GWA -14DA6.3 GWA -15D4.5 GWA -16D0.88 j GWA -17D2.6 GWA -18D1.7 GWA -21DA2.3 GWA -22D1.1 GWA -24D2.2 GWA -26D7.3 FIGURE 11-44ISOCONCENTRATION M APSULFATE IN DEEP GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND SULFATE CONCENTRATION (mg/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR SULFATE IS 250 mg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 16.2 mg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &<&< &< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AL142ND 2.9 AB-21BRL12.1 AB-22BR22 AB-24BR3.4 AB-27BR33.6 AB-35BR2.8 AB-38BR17.8BG-2BRA-2†7.3 BG-4BR2.3 GWA-1BR12.7 GW A-4BR41.4 GWA-5BRA56.1 GW A-6BR137 GWA-9BR†8.1 GW A-24BR†8.2 PH ADJ BLD20 PH WELL49.2 AB-22BRL40 GWA-6BRA124 AL1112.8 AL112†6.5 AL115†373 AL117†38 .3 AL119†5.6 AL120†11.2 AL1 242.6 AL125†6.9 AL1 262.1 AL1292.8 AL1 322.1 AL1352.1 AL137†4.6 AL1 392.7 AL3 9 WELL B†6.5 AL4 8†4 AL51.11 AL50 W ELL A†5.9 AL50 W ELL C†4.9 AL912 AL9 4†5.4 AL97†7 AL98†14 CIF W ELLND AL1ND AL101ND AL1 21ND AL127ND AL1 30ND AL1 31ND AL1 33ND AL1 38ND AL3ND AL40ND AL41ND AL42ND AL44ND AL45ND AL47ND AL50 WELL BND AL85ND AL88ND AL89ND AL90ND AL92ND AL93ND AL96ND AL99ND AL39 WELL AND NOT ES:THE NORTH CAROLINA 2 L FOR SULFATE IS 250 mg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 2.9 mg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS AND SAMPLE ANALYTICAL RESULTSREFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). WAT ER SUPP LY WELL SAMPL ED BY NCDEQ BE TWEEN FEBRUARY 2015 AND OCTOBER2015. FIGURE 11-45ISOCONCENTRATION M APSULFATE IN BEDROCK GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND &< &< &< 2 . 9 AB-4BR5.7 AB-14BR5.8 AL1 002.8 AL112.2 AL1102 AL1132.2 AL1142.3 AL12†4.5 AL1 362.1AL14†6.9 AL1402.8 AL1 5†4.6 AL172.1 AL2†3 AL202.1 AL212.2 AL22†3.2 AL232.2 AL24†3.8 AL262.5 AL342.2 AL492.6 AL512 AL5 4†3.8 AL552.5 AL58†4.3 AL62.1 AL61†3.3AL63†6AL65†3.2 AL6 7†3.3 AL682.7AL702.7 AL772.5 AL792.1 AL822.1 AL8 3†3.9 AL91.22 GWA-21BR2 AL1 02ND AL118ND AL1 23ND AL141ND AL16ND AL19ND AL25NDAL27ND AL28ND AL29ND AL30ND AL31ND AL32ND AL33ND AL52ND AL53ND AL56ND AL57ND AL59NDAL60ND AL62ND AL64ND AL66ND AL69ND AL7ND AL71ND AL72ND AL73ND AL74ND AL75ND AL76ND AL78ND AL8ND AL81ND AL84ND SEE INSET INSETSCALE: 1" = 500 ' NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT DETECTED ABOVE REPORTING LIMITND SULFATE CONCENTRATION (mg/L)1 NOT SAMPLEDNS &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &<&< &<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 0.1 0 .1 0.10.10.10.2 AB-20.0 23 j AB-4S0.0 53 j AB-50.0 32 j AB-9S0.0 25 j AB-20S*0.19 AB-21S*0.0 63 j AB-21SL*0.0 42 j AB-22S0.0 35 j AB-24S*0.0 46 j AB-25S*0.18 AB-28S*0.33 AB-29S*0.0 52 jAB-30S*0.0 44 j AB-32S0.0 21 j AB-33S*0.0 92 j AB-36S0.13 AB-38S*0.11 BG-1S0.0 17 j BG-2S0.0 24 j CCR-1S0.0 36 j CCR-2S0.0 2 j CCR-3S0.0 89 j CCR-4SA1.9 j CCR-5S2.1 CCR-6S3.1 CCR-8S0.1 CCR-9S0.0 89 j CCR-11S0.0 76 j CCR-14S0.0 68 j CCR-16S0.0 36 j CCR-17S0.11 CCR-18S0.0 34 j CCR-20S0.0 26 j CCR-21S0.17 CCR-22S0.0 68 j GWA -1S0.0 35 j GWA -2S0.0 22 j GWA -3S0.0 27 j GWA -4S0.0 73 j GWA -5S0.1 4 B GWA -6S1.5 D3,B GWA -7S0.11 GWA -8S0.0 64 j GWA -9S0.0 63 j GWA -14S0.0 41 j GWA -19S0.0 34 j GWA -21S0.0 22 j GWA -22S0.0 96 j GWA -23S0.0 32 j AB-1RND AB-6AND AB-6RND AB-10SND AB-12SND AB-13SND AB-23S*ND AB-24SL*ND AB-25SL*ND AB-26SND AB-27S*ND AB-31SND AB-34S*ND AB-35S*ND AB-37S*ND AB-39S*ND BG-3SND BG-4SND CCR-7SND CCR-23SND GWA -15SND GWA -16SND GWA -17SND GWA -18SND GWA -26SND GWA -24SAND FIGURE 11-46ISOCONCENTRATION M APTHALLIUM IN SHALL OW GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND IMAC CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL THALLIUM CONCENTRATION (μg/L)1 NOT ES:THE INTERIM MAXIMUM AL LOWABLE CONCENTRATION (IMAC) FOR THALLIUM IS 0.2μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.1 µg/L. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &< &< &<&< &<&< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AB-30D0.0 16 j AB-36D0.0 35 j AB-39D0.089 j,B CCR-4DA0.0 55 j CCR-17D0.0 21 j GWA -1D0.0 22 j GWA -7D0.0 61 j GWA -14DA0.0 34 j GWA -17D0.0 54 j GWA -22D0.0 17 j AB-2DND AB-4DND AB-9DND AB-10DND AB-11DND AB-12DND AB-13DND AB-14DND AB-20DND AB-22DND AB-26DND AB-27DND AB-29DND AB-32DND AB-33DNDAB-34DND AB-37DND AB-38DND BG-1DAND BG-2DND BG-3DND BG-4DND CCR-1DNDCCR-1DAND CCR-2DND CCR-3DAND CCR-4DND CCR-5DND CCR-6DND CCR-7DND CCR-8DND CCR-9DND CCR-11DAND CCR-14DND CCR-16DND CCR-18DND CCR-20DND CCR-21DND CCR-23DND CCR-BG-1DND GWA -2DND GWA -3DND GWA -4DND GWA -5DND GWA -6DAND GWA -8DND GWA -9DND GWA -15DND GWA -16DND GWA -18DND GWA -21DAND GWA -24DND GWA -26DND FIGURE 11-47ISOCONCENTRATION M APTHALLIUM IN DEEP GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND IMAC CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL THALLIUM CONCENTRATION (μg/L)1 NOT ES:THE INTERIM MAXIMUM AL LOWABLE CONCENTRATION (IMAC) FOR THALLIUM IS 0.2μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.1 µg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &< &< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AL142ND BG-2BRA-20.02 j CIF WELL0.0 33 j GW A-1BR0.047 j AB-21BRLND AB-22BRND AB-24BRND AB-27BRND AB-35BRND AB-38BRND BG-4BRND GWA-4BRND GWA-5BRAND GW A-6BRND GW A-9BRNDGWA-24BRND PH WELLND AB-22BRLND GWA-6BRAND AL1ND AL1 01ND AL111ND AL112ND AL115ND AL117ND AL119ND AL120ND AL1 21ND AL124ND AL125ND AL126ND AL127ND AL1 29ND AL1 30ND AL131ND AL1 32ND AL1 33ND AL1 35ND AL1 37ND AL138ND AL139ND AL3ND AL39 WELL BND AL40ND AL41ND AL42ND AL44NDAL45ND AL47ND AL48ND AL5ND AL50 WELL AND AL50 WELL BND AL50 WELL CND AL85ND AL88ND AL89NDAL90ND AL91ND AL92ND AL93ND AL94ND AL96ND AL97ND AL98ND AL99ND AL39 WELL AND NOT ES:THE INTERIM MAXIMUM AL LOWABLE CONCENTRATION (IMAC) FOR THALLIUM IS 0.2μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.1 µg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS AND SAMPLE ANALYTICAL RESULTSREFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). WAT ER SUPP LY WELL SAMPL ED BY NCDEQ BE TWEEN FEBRUARY 2015 AND OCTOBER FIGURE 11-48ISOCONCENTRATION M APTHALLIUM IN BEDROCK GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND &< &< &< AB-4BR0.022 j AL56†0.057 AB-14BRND AL1 00ND AL1 02ND AL11ND AL110ND AL113ND AL114ND AL118ND AL12ND AL1 23ND AL136ND AL14ND AL140ND AL141ND AL15ND AL16ND AL17ND AL19ND AL2ND AL20ND AL21ND AL22ND AL23ND AL24ND AL25ND AL26ND AL27ND AL28ND AL29ND AL30ND AL31ND AL32ND AL33ND AL34ND AL49ND AL51ND AL52ND AL53ND AL54ND AL55ND AL57ND AL58ND AL59ND AL6ND AL60NDAL61NDAL62ND AL63ND AL64NDAL65ND AL66ND AL67ND AL68NDAL69ND AL7ND AL70ND AL71ND AL72ND AL73ND AL74ND AL75ND AL76ND AL77ND AL78NDAL79ND AL8ND AL81ND AL82ND AL83ND AL84ND AL9ND GWA-21BRND SEE INSET INSETSCALE: 1" = 500 ' IMAC CONTOUR PBTV CONTOUR NOT DETECTED ABOVE REPORTING LIMITND TOTAL THALLIUM CONCENTRATION (μg/L)1 NOT SAMPLEDNS &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &<&< &<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL181 181 500 AB-1R400 AB-4S76 AB-6A115AB-6R115 AB-8146 AB-9S131 AB-10S103 AB-12S29 AB-13S44 AB-20S*690 AB-21S*568 AB-21SL*359 AB-22S42 AB-23S*98.00001 AB-24S*129 AB-24SL*118 AB-25S*238 AB-25SL*234 AB-26S148 AB-27S*230 AB-28S*397 AB-29S*171 AB-30S*219 AB-31S210 AB-32S36 D6AB-33S*838 AB-34S*417 AB-35S*677AB-36S152 AB-37S*82 D6 AB-38S*168 AB-39S*171 BG-2S134 BG-3S111 BG-4S112 CCR-1S32 CCR-3S252 CCR-4SA2650 CCR-5S1160 CCR-6S2390 CCR-7S265 CCR-8S290 CCR-9S274 CCR-11S253 CCR-14S132 CCR-16S332 CCR-17S188 CCR-18S213 CCR-20S112 CCR-21S209 CCR-22S45 CCR-23S47 GWA -1S54 GWA -3S104 GWA -4S256 GWA -5S47 GWA -6S2670 GWA -7S175GWA-8S231 GWA -9S87 GWA -14S27 GWA -15S107 GWA -16S75 GWA -17S60 GWA -18S86 GWA -19S61 GWA -26S53 GWA -24SA37 D6 AB-2ND AB-5ND BG-1SND CCR-2SND GWA -2SND GWA -21SND GWA -22SND GWA -23SND FIGURE 11-49ISOCONCENTRATION M APTOTAL DISSOLVED SOLIDS I N SHALLOWGROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL DISSOLVED SO LIDS CONCENTRATION (mg/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR TOTAL DISSOLVED SOLIDS IS 500 mg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 181 mg/L. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &< &< &<&< &<&< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 1 2 6500AB-2D77 AB-4D104 AB-9D179 AB-10D130 AB-11D86 AB-12D104 AB-13D103 AB-14D101 AB-20D97 D6 AB-22D240 AB-26D153 AB-27D212 AB-29D160AB-30D137 AB-32D139AB-33D126 AB-34D94 AB-36D101 AB-37D112 AB-38D172 AB-39D216 BG-1DA81 BG-2D113 BG-3D111 BG-4D†150 CCR-1D165 CCR-1DA114 CCR-2D301 CCR-3DA201 CCR-4D423CCR-4DA401 CCR-5D203 CCR-6D109 CCR-7D189 CCR-8D189 CCR-9D303 CCR-11DA167 CCR-14D158 CCR-16D161 CCR-17D278 CCR-18D248 CCR-20D255 CCR-21D276 CCR-23D124 CCR-BG-1D†127 GWA -1D161 GWA -2D85 GWA -3D126 GWA -4D177 GWA -5D128 GWA -6DA629 GWA -7D278 GWA -8D101 GWA -9D73 D6 GWA -14DA115 GWA -15D†147 GWA -16D73 GWA -17D110 GWA -18D81 GWA -21DA115 GWA -22D†162 GWA -24D89 GWA -26D102 FIGURE 11-50ISOCONCENTRATION M APTOTAL DISSOLVED SOLIDS IN DEEP GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL DISSOLVED SO LIDS CONCENTRATION (mg/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR TOTAL DISSOLVED SOLIDS IS 500 mg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 126 mg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &<&< &< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AL142105 1471 4 7 147 AB-21BRL127 AB-22BR261 AB-24BR83 AB-27BR154 AB-35BR100 AB-38BR194 BG-2BRA-2121 BG-4BR115 CIF W ELL65 GWA-1BR151 GW A-4BR164 GWA-5BRA177 GW A-6BR357 GWA-9BR108GWA-24BR110 PH ADJ BLD308 PH WELL314 AB-22BRL275 GWA-6BRA363 AL1100 AL10140 AL111109 AL112144 AL115†67 5 AL117†25 4 AL119114 AL120128 AL12173 AL124133 AL12597 AL126103 AL127109 AL129†18 2 AL130110 AL1 3175 AL1 32133 AL1 3399 AL1 35107 AL1 37101 AL138†16 0 AL1 3981 AL383 AL39 WELL B139 AL4064 AL4149 AL4262 AL4463 AL4574 AL4 7†229 AL48109 AL588 AL50 WELL A125 AL50 WELL B78 AL50 WELL C96 AL8567 AL8863 AL8975AL90101 AL9198 AL9290 AL9398 AL94124 AL9690 AL97102 AL98†17 3 AL99105 AL39 WELL A77 NOT ES:THE NORTH CAROLINA 2 L FOR TOTAL DISSOLVED SOLIDS IS 500 mg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 147 mg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS AND SAMPLE ANALYTICAL RESULTSREFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). WAT ER SUPP LY WELL SAMPL ED BY NCDEQ BE TWEEN FEBRUARY 2015 AND OCTOBER2015. FIGURE 11-51ISOCONCENTRATION M APTOTAL DISSOLVED SOLIDS I N BEDROCKGROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND &< &< &< 147AB-4BR152 AB-14BR113 GW A-21BR†14 8 AL100†150 AL1 02109 AL11118 AL110110 AL113108 AL114128 AL118107 AL12146 AL1 23†160 AL136†23 3 AL14†21 4 AL1 40†15 1 AL14198 AL1 5†156 AL16116 AL17130 AL1 9†157 AL2114 AL20134 AL21119 AL22133 AL2394 AL24107 AL25143 AL2 6†147 AL2 7†166 AL28†15 2 AL29100 AL30122 AL3170 AL32100 AL33116 AL34108 AL49117 AL51†17 8 AL5 2†158 AL5375 AL54145 AL55125 AL56140 AL57123 AL58137 AL5999 AL686 AL60†19 7 AL6 1†148 AL62108AL63†20 4 AL6 4†233 AL6 5†165 AL66†16 0 AL6 7†159 AL6 8†160AL69141 AL7119 AL7 0†162 AL7 1†149 AL72132 AL73133 AL7 4†168 AL7599 AL7687 AL7 7†157 AL7870AL79104 AL8132 AL81137 AL8 2†223 AL8 3†228 AL84134 AL9†165 SEE INSET INSETSCALE: 1" = 500 ' NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT DETECTED ABOVE REPORTING LIMITND TOTAL DISSOLVED SO LIDS CONCENTRATION (mg/L)1 NOT SAMPLEDNS &< &< &< &< &< &< &< &< &< &< &< &< &< &<&<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &<&< &<&< &< &< &<&< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 1.391 . 3 9 1.39 1.39 CCR-1S0.028 AB-32S0.032 BG-2S0.0 83 BG-3S0.1 77 AB-12S0.2 099 GWA -1S0.2 458 BG-1S0.2 832 AB-1R0.3 066 GWA -6S0.3 412 AB-25SL*0.355 AB-25S*0.3 746 CCR-3S0.39 CCR-8S0.3 91 CCR-6S0.398 AB-22S0.4 232 AB-6A0.4 24 CCR-7S0.4 304 CCR-22S0.4 58 CCR-16S0.51 CCR-11S0.545 GWA -21S0.582 GWA -16S0.6 25 AB-13S0.65 GWA -8S0.6 59 CCR-BG-1S0.663 CCR-17S0.667 AB-4S0.6 873 CCR-14S0.691 GWA -18S0.694 AB-6R0.695 AB-26S0.7 19 GWA -26S0.7 75 AB-33S*0.87 CCR-21S0.875 CCR-9S0.876 GWA -3S0.895 CCR-18S0.927 GWA -4S0.9 32 AB-10S0.9 73 CCR-23S0.9 75 GWA -23S0.977 AB-31S0.9 849 GWA -17S1.007 CCR-2S1.0 36 GWA -22S1.0 59 AB-21SL*1.1 42 AB-9S1.2 35 CCR-4SA1.252 GWA -19S1.256 AB-35S*1.277 GWA -2S1.305 GWA -9S1.333 BG-4S1.3 57 AB-51.49 CCR-20S1.49 AB-21S*1.5 25 CCR-5S1.632 GWA -7S2.035 GWA -5S2.465 AB-2NS AB-8NS AB-20S*NS AB-23S*NS AB-24S*NS AB-24SL*NS AB-27S*NSAB-28S*NS AB-29S*NSAB-30S*NS AB-34S*NS AB-36SNS AB-37S*NS AB-38S*NS AB-39S*NS GWA -14SNS GWA -15SNS GWA -24SANS FIGURE 11-52ISOCONCENTRATION M APTOTAL RADIUM IN SHALLOW GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL RADIUM CONCENTRATION (pCi/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR TOTAL RADIUM IS 5 pCi/L PROVISIONAL BACKGROUND THRESHOLD VALUE IS 1.39 pCi/L. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &<&< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &< &< &<&< &< &< &< &< &< &< &< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 0.613 0.613 0.613 0.613 CCR-1D-0.219 CCR-5D-0.0138 GWA -3D0.1 786 CCR-6D0.2 533 CCR-20D0.294 AB-10D0.2 94 CCR-16D0.2 963 AB-12D0.3 187 CCR-18D0.3 35 GWA -9D0.343 CCR-11DA0.3 52 BG-4D0.3 95 AB-4D0.403 BG-3D0.4 077 CCR-7D0.414 AB-13D0.427 AB-9D0.4 754 GWA -1D0.529 AB-14D0.5 3811 GWA -17D0.545 CCR-3DA0.5 48 GWA -21DA0.5 58 CCR-4D0.56 CCR-23D0.61 CCR-17D0.6 101 GWA -26D†0.6 47 GWA -5D0.648 CCR-BG-1DA0.683 GWA -22D†0.683 AB-22D0.69 CCR-9D0.6 976 CCR-14D0.7 06 GWA -16D†0.741 AB-33D0.7 42 BG-1DA†0.745 AB-32D0.7 59 CCR-4DA0.776 GWA -18D0.799 GWA -23D0.82 CCR-8D0.8 43 BG-2D†0.854 CCR-BG-1D0.866 CCR-21D0.901 CCR-1DA1.0 55 GWA -6DA1.055 GWA -24D†1.103 GWA -2D1.111 CCR-2D1.2 15 AB-26D1.2 38 AB-11D1.2 56 GWA -4D1.342 GWA -7D1.61 AB-2DNS AB-20DNS AB-27DNS AB-29DNSAB-30DNS AB-34DNS AB-36DNS AB-37DNS AB-38DNS AB-39DNS GWA -8DNS GWA -14DA†NS GWA -15DNS FIGURE 11-53ISOCONCENTRATION M APTOTAL RADIUM IN DEEP GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL RADIUM CONCENTRATION (pCi/L)1 NOT ES:THE NORTH CAROLINA 2 L FOR TOTAL RADIUM IS 5 pCi/L PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.613 pCi/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &<&< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 1.1BG-4BR0.1 088 AB-27BR0.1124 AB-35BR0.1424 BG-2BRA-20.17 GWA-5BRA0.2256 GW A-6BR0.296 GW A-1BR0.338 AB-38BR0.624 AB-24BR0.661 AB-21BRL0.777 GWA-4BR0.7 976 GWA-9BR0.976GWA-24BR1.005 PH WELL1.16 AB-22BR1.218 GWA-6BRA0.956 AL1NS AL1 01NS AL111NS AL112NS AL115NS AL117NS AL119NS AL120NS AL121NS AL124NS AL1 25NS AL126NSAL127NS AL1 29NS AL1 30NS AL1 31NS AL1 32NS AL133NS AL1 35NS AL1 37NS AL1 38NS AL1 39NS AL142NS AL3NS AL39 W ELLA NS AL39 W ELLB NS AL40NS AL41NS AL42NS AL44NS AL45NS AL47NS AL48NS AL5NS AL5 0 WELLA NS AL50 W ELLB NS AL50 W ELLC NS AL85NSAL88NS AL89NS AL90NS AL91NS AL92NS AL93NS AL94NS AL96NS AL97NS AL98NSAL99NS AB-22BRLNS NOT ES:THE NORTH CAROLINA 2 L FOR TOTAL RADIUM IS 5 pCi/L PROVISIONAL BACKGROUND THRESHOLD VALUE IS 1.1 pCi/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS AND SAMPLE ANALYTICAL RESULTSREFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). WAT ER SUPP LY WELL SAMPL ED BY NCDEQ BE TWEEN FEBRUARY 2015 AND OCTOBER2015. FIGURE 11-54ISOCONCENTRATION M APTOTAL RADIUM IN BEDRO CK GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND &< &< &< AB-4BR0.9 24 GWA-21BR1.052 AB-14BR†1.112 AL1 00NS AL1 02NS AL11NS AL110NS AL113NS AL114NS AL118NS AL12NS AL1 23NS AL136NS AL14NS AL140NS AL141NS AL15NS AL16NS AL17NS AL19NS AL2NS AL20NS AL21NS AL22NS AL23NS AL24NS AL25NS AL26NS AL27NS AL28NS AL29NS AL30NS AL31NS AL32NS AL33NS AL34NS AL49NS AL51NS AL52NS AL53NS AL54NS AL55NS AL56NS AL57NS AL58NS AL59NS AL6NS AL60NSAL61NSAL62NS AL63NS AL64NSAL65NS AL66NS AL67NS AL68NSAL69NS AL7NS AL70NS AL71NS AL72NS AL73NS AL74NS AL75NS AL76NS AL77NS AL78NSAL79NS AL8NS AL81NS AL82NS AL83NS AL84NS AL9NS SEE INSET INSETSCALE: 1" = 500 ' NORTH CAROLINA 2L CONTOUR PBTV CONTOUR NOT DETECTED ABOVE REPORTING LIMITND TOTAL RADIUM CONCENTRATION (pCi/L)1 NOT SAMPLEDNS &< &< &< &< &< &< &< &< &<&< &< &< &<&< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &<&< &< &< &< &<&< &<&< &<&< &< &< &<&< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 0.0020.002 AB-33S*0.00061 GWA -6S0.0 061 AB-25S*0.0 096AB-25SL*0.0 147 AB-21S*0.0 161 AB-21SL*0.0 387 AB-22S0.0 00067 j GWA -16S0.000069 j GWA -7S0.0 00092 j AB-35S*0.0 0037 j AB-1RND AB-4SND AB-5ND AB-6AND AB-6RND AB-9SND AB-10SND AB-12SND AB-13SND AB-26SND AB-31SND AB-32SND BG-1SND BG-2SND BG-3SND BG-4SND GWA -1SND GWA -2SND GWA -3SND GWA -4SND GWA -5SND GWA -8SND GWA -9SND GWA -17SND GWA -18SND GWA -19SND GWA -21SND GWA -22SND GWA -23SND GWA -26SND AB-2NS AB-8NS AB-20S*NS AB-23S*NS AB-24S*NS AB-24SL*NS AB-27S*NSAB-28S*NS AB-29S*NSAB-30S*NS AB-34S*NS AB-36SNS AB-37S*NS AB-38S*NS AB-39S*NS CCR-1SNS CCR-2SNS CCR-3SNS CCR-4SANS CCR-5SNS CCR-6SNS CCR-7SNS CCR-8SNS CCR-9SNS CCR-11SNS CCR-14SNS CCR-16SNS CCR-17SNS CCR-18SNS CCR-20SNS CCR-21SNS CCR-22SNS CCR-23SNS GWA -14SNS GWA -15SNS GWA -24SANS FIGURE 11-55ISOCONCENTRATION M APTOTAL URANIUM IN SHALLOW GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND FEDERAL MCL CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL URANIUM CONCENTRATION (μg/mL)1 NOT ES:THE FE DERAL MAXIMUM CONTAMINANT LEVEL (MCL) FOR TOTAL URANIUM IS 0.03μg/mL PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.002 μg/mL. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &<&< &<&< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 0.00050.00050 .0 0 0 5 BG-4D0.00052 GWA -23D0.0 0052 AB-26D0.0 0064 GWA -17D0.0 0071 GWA -6DA0.0 016 GWA -9D0.000067 j GWA -26D0.0 00072 j GWA -5D0.000075 jAB-32D0.0 0011 j BG-2D0.0 0011 j AB-9D0.0 0013 j GWA -4D0.0 0016 j AB-12D0.0 0019 j BG-1DA0.0002 j GWA -21DA0.0 0023 j GWA -1D0.0 0024 j GWA -22D0.0 0025 j AB-33D0.0 0035 j GWA -3D0.0 0035 j AB-22D0.0 0039 j GWA -7D0.0 0039 j AB-4DND AB-10DND AB-11DND AB-13DND AB-14DND BG-3DND GWA -2DND GWA -16DND GWA -18DND GWA -24DND AB-2DNS AB-20DNS AB-27DNS AB-29DNSAB-30DNS AB-34DNS AB-36DNS AB-37DNS AB-38DNS AB-39DNS GWA -8DNS GWA -14DA†NS GWA -15DNS CCR-1DNSCCR-1DANS CCR-2DNS CCR-3DANS CCR-4DNS CCR-4DANS CCR-5DNS CCR-6DNS CCR-7DNS CCR-8DNS CCR-9DNS CCR-11DANS CCR-14DNS CCR-16DNS CCR-17DNS CCR-18DNS CCR-20DNS CCR-21DNS CCR-23DNS CCR-BG-1DNS GWA -14DNS FIGURE 11-56ISOCONCENTRATION M APTOTAL URANIUM IN DEEP GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND FEDERAL MCL CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL URANIUM CONCENTRATION (μg/mL)1 NOT ES:THE FE DERAL MAXIMUM CONTAMINANT LEVEL (MCL) FOR TOTAL URANIUM IS 0.03μg/mL PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.0005 μg/mL. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 0.0004 0 . 0 0 0 4 0.0004 0.0004GW A-4BR0.00056 GWA-5BRA0.00057 AB-21BRL0.0015 GWA-1BR0.0 015 AB-38BR0.0 016 AB-27BR0.00013 j GWA-9BR0.00017 j AB-35BR0.00018 j AB-24BR0.00028 j GWA-24BR0.0003 j BG-4BR0.00031 j AB-22BR0.00034 j BG-2BRA-20.00044 j GWA-6BR0.0018 j GWA-6BRA0.0 013 PH WELLND AL1NS AL1 01NS AL111NS AL112NS AL115NS AL117NS AL119NS AL120NS AL121NS AL124NS AL1 25NS AL126NSAL127NS AL1 29NS AL1 30NS AL1 31NS AL1 32NS AL133NS AL1 35NS AL1 37NS AL1 38NS AL1 39NS AL142NS AL3NS AL39 W ELLA NS AL39 W ELLB NS AL40NS AL41NS AL42NS AL44NS AL45NS AL47NS AL48NS AL5NS AL5 0 WELLA NS AL50 W ELLB NS AL50 W ELLC NS AL85NSAL88NS AL89NS AL90NS AL91NS AL92NS AL93NS AL94NS AL96NS AL97NS AL98NSAL99NS AB-22BRLNS NOT ES:THE FE DERAL MAXIMUM CONTAMINANT LEVEL (MCL) FOR TOTAL URANIUM IS 0.03μg/mL PROVISIONAL BACKGROUND THRESHOLD VALUE IS 0.0004 μg/mL. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS AND SAMPLE ANALYTICAL RESULTSREFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). WAT ER SUPP LY WELL SAMPL ED BY NCDEQ BE TWEEN FEBRUARY 2015 AND OCTOBER FIGURE 11-57ISOCONCENTRATION M APTOTAL URANIUM IN BEDROCK GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND &< &< &< AB-14BR0.00051 GWA-21BR0.0 009 AB-4BR0.0 0022 j AL1 00NS AL1 02NS AL11NS AL110NS AL113NS AL114NS AL118NS AL12NS AL1 23NS AL136NS AL14NS AL140NS AL141NS AL15NS AL16NS AL17NS AL19NS AL2NS AL20NS AL21NS AL22NS AL23NS AL24NS AL25NS AL26NS AL27NS AL28NS AL29NS AL30NS AL31NS AL32NS AL33NS AL34NS AL49NS AL51NS AL52NS AL53NS AL54NS AL55NS AL56NS AL57NS AL58NS AL59NS AL6NS AL60NSAL61NSAL62NS AL63NS AL64NSAL65NS AL66NS AL67NS AL68NSAL69NS AL7NS AL70NS AL71NS AL72NS AL73NS AL74NS AL75NS AL76NS AL77NS AL78NSAL79NS AL8NS AL81NS AL82NS AL83NS AL84NS AL9NS SEE INSET INSETSCALE: 1" = 500 ' FEDERAL MCL CONTOUR PBTV CONTOUR NOT DETECTED ABOVE REPORTING LIMITND TOTAL URANIUM CONCENTRATION (μg/mL)1 NOT SAMPLEDNS &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &< &<&< &<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL 5 .3 5.3 AB-1R2.1 AB-20.44 AB-4S1.8 AB-52.7 AB-6A4.4 AB-6R3.8 AB-10S0.91 AB-13S0.74 AB-20S*5.7 AB-21S*7.8 AB-21SL*4.6 AB-22S1.4 AB-23S*5.1 AB-24S*11.1 AB-24SL*2.7 AB-25S*35.2 AB-25SL*6.1 AB-26S1.7 AB-27S*0.68AB-28S*0.52 AB-29S*2.3AB-30S*9.2 AB-31S2 AB-32S0.5 3 B AB-33S*0.42 BAB-34S*0.1 2 j AB-35S*0.97AB-36S1.4 AB-37S*9.1 AB-38S*1.3 AB-39S*0.72 BG-1S0.83 BG-2S†7.5 BG-3S2.9 BG-4S2.1 GWA -1S0.46 GWA -3S0.1 5 j,B GWA -4S0.61 GWA -5S1.8 GWA -7S0.35 BGWA-8S4 GWA -9S0.77 GWA -14S0.27 j GWA -15S4.4 GWA -16S1.8 GWA -17S2.3 GWA -18S5 GWA -19S1 GWA -22S0.78 GWA -23S0.33 GWA -26S3.2 GWA -24SA0.4 B AB-9SND AB-12SND GWA -2SND GWA -6SND GWA -21SND CCR-1SNS CCR-2SNS CCR-3SNS CCR-4SANS CCR-5SNS CCR-6SNS CCR-7SNS CCR-8SNS CCR-9SNS CCR-11SNS CCR-14SNS CCR-16SNS CCR-17SNS CCR-18SNS CCR-20SNS CCR-21SNS CCR-22SNS CCR-23SNS FIGURE 11-58ISOCONCENTRATION M APVANADIUM IN SHALLOW GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND IMAC CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL VANADIUM CONCENTRATION (μg/L)1 NOT ES:THE INTERIM MAXIMUM AL LOWABLE CONCENTRATION (IMAC) FOR VANADIUM IS 0.3μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 5.3 µg/L. DASHED CONTOURS WHERE INFERRED. * ASH P ORE WATER DATA US ED TO INFER GROUNDWATER CONCENTRATIONS IN THEABSENCE OF SHAL LOW FLOW ZONE DATA. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &<&< &<&< &<&<&< &< &< &<&<&<&< &< &< &< &< &< &<&< &< &< &< &< POWER PLANT ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL9.69.69.69.69 .6 AB-4D4.8 AB-9D6.6 AB-10D4.7 AB-11D1.7 AB-12D4.3 AB-13D6 AB-14D1.1 AB-22D15.3 AB-26D6.2 AB-32D7.8 AB-33D5 BG-1DA†11 BG-2D9.2 BG-3D6.6 BG-4D7.4 GWA -1D8.4 GWA -2D4.4 GWA -3D9.2 GWA -4D4.3 GWA -5D7.9 GWA -6DA1.2 GWA -7D8.5 GWA -9D6.2 GWA -16D8.2 GWA -17D4.9 GWA -18D9.6 GWA -21DA†15.3 GWA -22D†11 GWA -24D†13.3 GWA -26D4.3 AB-20D11.3 AB-27D10.4 AB-29D7.3 AB-34D11.9AB-37D10 AB-2DNS AB-30DNS AB-36DNS AB-38DNS AB-39DNS CCR-1DNS CCR-1DANS CCR-2DNS CCR-3DANS CCR-4DNS CCR-4DANS CCR-5DNS CCR-6DNS CCR-7DNS CCR-8DNS CCR-9DNS CCR-11DANS CCR-14DNS CCR-16DNS CCR-17DNS CCR-18DNS CCR-20DNS CCR-21DNS CCR-23DNS CCR-BG-1DNS GWA -8DNS GWA -14DNSGWA-14DANS GWA -15DNS FIGURE 11-59ISOCONCENTRATION M APVANADIUM IN DEEP GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CSA_Supplement_2\Allen - Isoconcentration Maps.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND IMAC CONTOUR PBTV CONTOUR NOT SAMPLEDNS NOT DETECTED ABOVE REPORTING LIMITND TOTAL VANADIUM CONCENTRATION (μg/L)1 NOT ES:THE INTERIM MAXIMUM AL LOWABLE CONCENTRATION (IMAC) FOR VANADIUM IS 0.3μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 9.6 µg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS REFLECT INFORMATION AVAILABLE UPTO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &< &< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL AL1424.9 AB-21BRL2.3 AB-22BR1.7 AB-24BR8.1 AB-27BR1.3 AB-35BR7.2 AB-38BR4.3 BG-2BRA-29.9 BG-4BR9.9 CIF W ELL1.4 GWA-1BR10.1 GW A-4BR5.7 GWA-5BRA3.7 GW A-6BR4.3 GW A-9BR9.8GWA-24BR9.3 PH WELL3.4 AB-22BRL4.9 GWA-6BRA5.1 AL16.3 AL1014 AL11110.4 AL1124 AL1155.3 AL1175.4 AL1193.1 AL121†13.1 AL1249.3 AL126†12 AL12710.6 AL1296.8 AL1307.9 AL1 317.9 AL1 327.8 AL1 337.4 AL1 357 AL1 376.5 AL1386.4 AL1 395.4 AL37.7 AL39 W ELL B†12.7 AL403.4 AL413.5 AL423.6 AL455.3 AL473.6 AL486.1 AL5†14 AL50 WELL A5.5 AL50 WELL B6.7 AL50 WELL C3.7 AL859.6 AL8 9†12AL905.5 AL9 1†12.2 AL925.1 AL939.7 AL9 4†24.9 AL965.9 AL980.25 AL997.1 AL39 WELL A2.9 AL120ND AL125ND AL44ND AL88ND AL97ND NOT ES:THE INTERIM MAXIMUM AL LOWABLE CONCENTRATION (IMAC) FOR VANADIUM IS 0.3μg/L. PROVISIONAL BACKGROUND THRESHOLD VALUE IS 10.8 µg/L. DASHED CONTOURS WHERE INFERRED. DATA PRESENT ED MAY INCLUDE LAB-QUALIFIE D RESULTS. REFER TO ANALYTICALDATA TABLE NOTES FOR QUAL IFIER DEFINITIONS. † CONCENT RAT ION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THEBACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGICSETTINGS. DUE TO GROUNDW AT ER FL OW DIRE CTION AND OTHER CONSTITUENTMIGRATION PATTERNS, CONCENT RAT ION DOES NOT SUGGEST IMPACT FROM THEASH BASIN. CONCE NTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALIDSAMPLE RESULTS FOR EACH W ELL. DATA W IT H HIGH TURBIDITY (>10 NTU) ORRESULTS THAT INDICATE GROUT CONTAMINATION OF THE WELL (PH>9) HAVE BEENREMOVED FROM DATA SET. COLL ECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 20 10 TO NOVEMBER 2017. DISPL AYE D WATER SUPPLY WEL L LOCATIONS AND SAMPLE ANALYTICAL RESULTSREFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83). WAT ER SUPP LY WELL SAMPL ED BY NCDEQ BE TWEEN FEBRUARY 2015 AND OCTOBER FIGURE 11-60ISOCONCENTRATION M APVANADIUM IN BEDROCK GROUNDWATERALLEN STEAM STATIONDUKE ENERGY CAROLI NAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/26/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supplement_2\Allen - Isoconcentration Maps_Bedrock.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<MONI TORING WELL IN ASH PORE WATER &<BACKG ROUND MON ITORING WELL &<ABANDO NED MONITORING WELL WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND &< &< &< AB-4BR3.6 AB-14BR†15 .9 AL100†12.8 AL1 029 AL115.2 AL110†11 .3 AL113†11 .4 AL11410.5 AL11810.6 AL122.4 AL1 237.6 AL1364.5 AL142 AL1404.7 AL1 41†12 .8 AL154.8 AL164.2 AL177.8 AL194.5 AL29.9 AL20†12 AL2 1†12.6 AL228.9 AL2 3†13.4 AL24†12 .5 AL255.3 AL267.6 AL274.2 AL28†13 AL296.8 AL305.8 AL312.9 AL322.7 AL336.4 AL3410.1 AL49†12 .6 AL512.4 AL523.4 AL534.3 AL544.4 AL557.5 AL567.6 AL578.3 AL58†12 .2 AL5 9†17.1 AL66.4 AL609 AL6 1†13.6 AL62†11 .2 AL637.02 AL642.8AL656 AL665.3 AL6 7†13.3 AL6 8†15.4AL698.4 AL7†10 .9 AL709.4AL719.2 AL725.1 AL739.3 AL745.8 AL7 5†13.8 AL768.34 AL778.6 AL782.1AL794.4 AL88.5 AL812.2 AL824.7 AL839 AL848.2 AL97 GW A-21BR†15 .9 SEE INSET INSETSCALE: 1" = 500 ' IMAC CONTOUR PBTV CONTOUR NOT DETECTED ABOVE REPORTING LIMITND TOTAL VANADIUM CONCENTRATION (μg/L)1 NOT SAMPLEDNS FIGURE 11-61 NOTES CONCENTRATION VERSUS DISTANCE FROM SOURCE ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA Note: Wells used for each graph in Figures 11-68 to 11-71 are consistent and are as follows: Source Area Surficial Zone: AB-39S Transition Zone: AB-39D Roughly 650’ to 850’ from Source Area Surficial Zone: GWA-6S, GWA-7S Transition Zone: GWA-06DA, GWA-7D Bedrock: GWA-06BRA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: E. YURKOVICH PROJECT MANAGER: C. SUTTELL LAYOUT: DATE: NOVEMBER 2017 P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Figures\Section 11\COI vs Distance LEGEND Standard (2L), (IMAC), (MCL) Shallow Deep Bedrock Note: Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non -detect analytical results are plotted at the corresponding reporting limit. Note: Wells used for each graph in Figures 11-72 to 11-75 are consistent and are as follows: Source Area Surficial Zone: AB-25S Roughly 850’ to 1060’ from Source Area Surficial Zone: AB-26S, GWA-03S Transition Zone: AB-26D, GWA-03D Note: Wells used for each graph in Figures 11-76 to 11-79 are consistent and are as follows: Source Area Surficial Zone: AB-21S Transition Zone: AB-21D Roughly 1910’ to 2335’ from Source Area Surficial Zone: AB-22S, AB-10S Transition Zone: AB-22D, AB-10D Bedrock Zone: AB-22BR, AB-22BRL FIGURE 11-62 CONCENTRATION VERSUS DISTANCE FROM SOURCE – ANTIMONY, ARSENIC, BERYLLIUM, BORON, CADMIUM, AND CHROMIUM COAL PILE TRANSECT (SHEET 1 OF 4) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: E. YURKOVICH PROJECT MANAGER: C. SUTTELL LAYOUT: DATE: NOVEMBER 2017 P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Figures\Section 11\COI vs Distance LEGEND Standard (2L), (IMAC), (MCL) Shallow Deep Bedrock Note: Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non -detect analytical results are plotted at the corresponding reporting limit. Coal Pile Transect FIGURE 11-63 CONCENTRATION VERSUS DISTANCE FROM SOURCE – HEX CHROMIUM, COBALT, IRON, MANGANESE, MOLYBDENUM, AND NICKEL COAL PILE TRANSECT (SHEET 2 OF 4) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: E. YURKOVICH PROJECT MANAGER: C. SUTTELL LAYOUT: DATE: NOVEMBER 2017 P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Figures\Section 11\COI vs Distance LEGEND Standard (2L), (IMAC), (MCL) Shallow Deep Bedrock Note: Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non -detect analytical results are plotted at the corresponding reporting limit. Coal Pile Transect FIGURE 11-64 CONCENTRATION VERSUS DISTANCE FROM SOURCE – pH, SELENIUM, STRONTIUM, SULFATE, THALLIUM, AND TDS COAL PILE TRANSECT (SHEET 3 OF 4) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: E. YURKOVICH PROJECT MANAGER: C. SUTTELL LAYOUT: DATE: NOVEMBER 2017 P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Figures\Section 11\COI vs Distance LEGEND 15 Standard (2L), (IMAC), (MCL) Shallow Deep Bedrock Note: Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non -detect analytical results are plotted at the corresponding reporting limit. Coal Pile Transect FIGURE 11-65 NOTE AND CONCENTRATION VERSUS DISTANCE FROM SOURCE – TOTAL RADIUM, TOTAL URANIUM, AND VANADIUM COAL PILE TRANSECT ALLEN STEAM STATION (SHEET 4 OF 4) DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: E. YURKOVICH PROJECT MANAGER: C. SUTTELL LAYOUT: DATE: NOVEMBER 2017 P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Figures\Section 11\COI vs Distance LEGEND 15 Standard (2L), (IMAC), (MCL) Shallow Deep Bedrock Note: Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non -detect analytical results are plotted at the corresponding reporting limit. Note: Wells used for each graph in Figures 11-68 to 11-71 are consistent and are as follows: Source Area Surficial Zone: AB-39S Transition Zone: AB-39D Roughly 650’ to 850’ from Source Area Surficial Zone: GWA-6S, GWA-7S Transition Zone: GWA-06DA, GWA-7D Bedrock: GWA-06BRA Coal Pile Transect FIGURE 11-66 CONCENTRATION VERSUS DISTANCE FROM SOURCE – ANTIMONY, ARSENIC, BERYLLIUM, BORON, CADMIUM, AND CHROMIUM NORTHERN ACTIVE ASH BASIN TRANSECT (SHEET 1 OF 4) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: E. YURKOVICH PROJECT MANAGER: C. SUTTELL LAYOUT: DATE: NOVEMBER 2017 P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Figures\Section 11\COI vs Distance LEGEND Standard (2L), (IMAC), (MCL) Shallow Deep Bedrock Note: Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non -detect analytical results are plotted at the corresponding reporting limit. Northern Active Ash Basin Transect FIGURE 11-67 CONCENTRATION VERSUS DISTANCE FROM SOURCE – HEX CHROMIUM, COBALT, IRON, MANGANESE, MOLYBDENUM, AND NICKEL NORTHERN ACTIVE ASH BASIN TRANSECT (SHEET 2 OF 4) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: E. YURKOVICH PROJECT MANAGER: C. SUTTELL LAYOUT: DATE: NOVEMBER 2017 P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Figures\Section 11\COI vs Distance LEGEND Standard (2L), (IMAC), (MCL) Shallow Deep Bedrock Note: Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non -detect analytical results are plotted at the corresponding reporting limit. Northern Active Ash Basin Transect FIGURE 11-68 CONCENTRATION VERSUS DISTANCE FROM SOURCE – pH, SELENIUM, STRONTIUM, SULFATE, THALLIUM, AND TDS NORTHERN ACTIVE ASH BASIN TRANSECT (SHEET 3 OF 4) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: E. YURKOVICH PROJECT MANAGER: C. SUTTELL LAYOUT: DATE: NOVEMBER 2017 P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Figures\Section 11\COI vs Distance LEGEND 15 Standard (2L), (IMAC), (MCL) Shallow Deep Bedrock Note: Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non -detect analytical results are plotted at the corresponding reporting limit. Northern Active Ash Basin Transect FIGURE 11-69 NOTE AND CONCENTRATION VERSUS DISTANCE FROM SOURCE – TOTAL RADIUM, TOTAL URANIUM, AND VANADIUM NORTHERN ACTIVE ASH BASIN TRANSECT ALLEN STEAM STATION (SHEET 4 OF 4) DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: E. YURKOVICH PROJECT MANAGER: C. SUTTELL LAYOUT: DATE: NOVEMBER 2017 P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Figures\Section 11\COI vs Distance LEGEND 15 Standard (2L), (IMAC), (MCL) Shallow Deep Bedrock Note: Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non -detect analytical results are plotted at the corresponding reporting limit. Note: Wells used for each graph in Figures 11-72 to 11-75 are consistent and are as follows: Source Area Surficial Zone: AB-25S Roughly 850’ to 1060’ from Source Area Surficial Zone: AB-26S, GWA-03S Transition Zone: AB-26D, GWA-03D Northern Active Ash Basin Transect FIGURE 11-70 CONCENTRATION VERSUS DISTANCE FROM SOURCE – ANTIMONY, ARSENIC, BERYLLIUM, BORON, CADMIUM, AND CHROMIUM SOUTHERN ACTIVE ASH BASIN TRANSECT (SHEET 1 OF 4) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: E. YURKOVICH PROJECT MANAGER: C. SUTTELL LAYOUT: DATE: NOVEMBER 2017 P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Figures\Section 11\COI vs Distance LEGEND Standard (2L), (IMAC), (MCL) Shallow Deep Bedrock Note: Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non -detect analytical results are plotted at the corresponding reporting limit. Southern Active Ash Basin Transect FIGURE 11-71 CONCENTRATION VERSUS DISTANCE FROM SOURCE – HEX CHROMIUM, COBALT, IRON, MANGANESE, MOLYBDENUM, AND NICKEL SOUTHERN ACTIVE ASH BASIN TRANSECT (SHEET 2 OF 4) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: E. YURKOVICH PROJECT MANAGER: C. SUTTELL LAYOUT: DATE: NOVEMBER 2017 P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Figures\Section 11\COI vs Distance LEGEND Standard (2L), (IMAC), (MCL) Shallow Deep Bedrock Note: Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non -detect analytical results are plotted at the corresponding reporting limit. Southern Active Ash Basin Transect FIGURE 11-72 CONCENTRATION VERSUS DISTANCE FROM SOURCE – pH, SELENIUM, STRONTIUM, SULFATE, THALLIUM, AND TDS SOUTHERN ACTIVE ASH BASIN TRANSECT (SHEET 3 OF 4) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: E. YURKOVICH PROJECT MANAGER: C. SUTTELL LAYOUT: DATE: NOVEMBER 2017 P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Figures\Section 11\COI vs Distance LEGEND 15 Standard (2L), (IMAC), (MCL) Shallow Deep Bedrock Note: Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non -detect analytical results are plotted at the corresponding reporting limit. Southern Active Ash Basin Transect FIGURE 11-73 NOTE AND CONCENTRATION VERSUS DISTANCE FROM SOURCE – TOTAL RADIUM, TOTAL URANIUM, AND VANADIUM SOUTHERN ACTIVE ASH BASIN TRANSECT ALLEN STEAM STATION (SHEET 4 OF 4) DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: E. YURKOVICH PROJECT MANAGER: C. SUTTELL LAYOUT: DATE: NOVEMBER 2017 P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Figures\Section 11\COI vs Distance LEGEND 15 Standard (2L), (IMAC), (MCL) Shallow Deep Bedrock Note: Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non -detect analytical results are plotted at the corresponding reporting limit. Note: Wells used for each graph in Figures 11-76 to 11-79 are consistent and are as follows: Source Area Surficial Zone: AB-21S Transition Zone: AB-21D Roughly 1910’ to 2335’ from Source Area Surficial Zone: AB-22S, AB-10S Transition Zone: AB-22D, AB-10D Bedrock Zone: AB-22BR, AB-22BRL Southern Active Ash Basin Transect SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/C. NEWELL XSECT-ANTIMONY 1/28/2018 01/29/2018 9:15 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-74 ANTIMONY ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. CAROLINAS SCALE: AS SHOWN 0.24j CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <0.5 <5 D3 0.89 <5 <0.5 <0.5 0.37j 0.19j <0.5 0.29j 7.6 0.7 <0.5 <0.5 <0.5 NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR ANTIMONY IS 1 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR ANTIMONY IS 0.876 μg/L WITHIN THE SHALLOW, 0.69 μg/L DEEP, 0.5 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. <5 <5 <5 <5 0.17j <0.5 <0.51.6 1 <10 SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/C. NEWELL XSECT-ANTIMONY 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-75 ANTIMONY ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <0.5 <0.5 0.38j 0.17j <0.5 <0.5 <0.5 0.34j 0.27j <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR ANTIMONY IS 1 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR ANTIMONY IS 0.876 μg/L WITHIN THE SHALLOW, 0.69 μg/L DEEP, 0.5 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION 140 CONCENTRATION IN μg/L GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/C. NEWELL XSECT-ANTIMONY 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-76 ANTIMONY ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <0.5 0.24j 0.43j <0.5 <0.5 <0.5 0.93 0.5j 0.7 7.6 0.27j 0.59 0.24j <0.5 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR ANTIMONY IS 1 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR ANTIMONY IS 0.876 μg/L WITHIN THE SHALLOW, 0.69 μg/L DEEP, 0.5 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION 140 CONCENTRATION IN μg/L GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/C. NEWELL XSECT-ANTIMONY 1/28/2018 01/29/2018 10:36 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-77 ANTIMONY ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <0.5 0.32j 0.13j <0.5 <0.5 0.74 1.3 0.43j 0.14j 0.33j 0.26j 0.15j 0.12j 0.76 0.1j <0.5 <0.5 †сKEEdZd/KE'ZdZd,EhZZEd^/d^W/&/Wdshdt/d,/Ed,<'ZKhEKEEdZd/KEZE'&KZ SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. † F'F SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR ANTIMONY IS 1 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR ANTIMONY IS 0.876 μg/L WITHIN THE SHALLOW, 0.69 μg/L DEEP, 0.5 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION 140 CONCENTRATION IN μg/L GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-ARSENIC 1/28/2018 01/29/2018 9:16 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-78 ARSENIC ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN 0.33B CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 1.7 1.1 <1 0.3 0.12 0.19 80 0.3 248 9.7 155 807 0.1 0.29 0.46 0.16 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR ARSENIC IS 10 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR ARSENIC IS 0.42 μg/L WITHIN THE SHALLOW, 1.4 μg/L DEEP, 0.4 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 137 D3 4.788.3 .47 0.13 1.9 0.7 <0.1 10 0.12 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-ARSENIC 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-79 ARSENIC ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 0.43 0.16 0.31 B 0.27 0.42 18.9 0.32 0.59 70.3 0.077j 0.36 0.084j 0.21 0.14 0.18 0.45 0.19 10 † = CONCENTRATION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THE BACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. † SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR ARSENIC IS 10 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR ARSENIC IS 0.42 μg/L WITHIN THE SHALLOW, 1.4 μg/L DEEP, 0.4 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-ARSENIC 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-80 ARSENIC ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <0.1 0.2 1.6 0.052j 0.11 0.26 85.2 583 807 155 0.15 B 0.28 0.31 0.11 † SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR ARSENIC IS 10 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR ARSENIC IS 0.42 μg/L WITHIN THE SHALLOW, 1.4 μg/L DEEP, 0.4 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION † = CONCENTRATION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THE BACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-ARSENIC 1/28/2018 01/29/2018 2:55 PM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-81 ARSENIC ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 0.24 0.66 0.2 B 0.88 0.73 50.5 589 634 1.8 0.24 B 0.36 B 0.069j 0.44 B 0.39 0.18 B 0.094j 0.12† † SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR ARSENIC IS 10 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR ARSENIC IS 0.42 μg/L WITHIN THE SHALLOW, 1.4 μg/L DEEP, 0.4 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION † = CONCENTRATION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THE BACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-BERYLLIUM 1/28/2018 01/29/2018 9:16 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-82 BERYLLIUM ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN 0.038j CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 1.1 38.6 D3 0.013j 0.1j <0.1 0.054j <0.1 0.031 j,B 0.014j <0.1 0.03j 0.017j 0.016j 0.09j 0.026j 0.029j SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR BERYLLIUM IS 4 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR BERYLLIUM IS 0.127 μg/L WITHIN THE SHALLOW, 0.2 μg/L DEEP, 0.1 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 4 <0.1 <0.1 <0.1 .836.934 2.1 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-BERYLLIUM 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-83 BERYLLIUM ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 0.014j <0.1 0.05j <0.1 0.011j 0.062j 0.026j <0.1 0.027j 0.027j 0.037j <0.1 0.04j <0.1 <0.1<0.1 <0.1 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR BERYLLIUM IS 4 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR BERYLLIUM IS 0.127 μg/L WITHIN THE SHALLOW, 0.2 μg/L DEEP, 0.1 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-BERYLLIUM 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-84 BERYLLIUM ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 0.15 0.013j 0.012j 0.071j 0.022j <0.1 0.019j, B 0.016j 0.017j 0.031j <0.1 <0.1 0.02j <0.1 † SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR BERYLLIUM IS 4 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR BERYLLIUM IS 0.127 μg/L WITHIN THE SHALLOW, 0.2 μg/L DEEP, 0.1 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION † = CONCENTRATION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THE BACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-BERYLLIUM 1/28/2018 01/29/2018 10:36 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-85 BERYLLIUM ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <0.1 <0.1 0.016j 0.11 <0.1 0.026j 0.051j 0.041j 0.01j 0.014j 0.012j 0.057j <0.1 0.083j 0.026j <0.1 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR BERYLLIUM IS 4 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR BERYLLIUM IS 0.127 μg/L WITHIN THE SHALLOW, 0.2 μg/L DEEP, 0.1 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-BORON 1/28/2018 01/29/2018 9:16 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-86 BORON ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <50 36.7j <50 190 778 322 614 130 516 387 1390 1280 <50 37.6j <50 30.2j <50 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR BORON IS 700 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR BORON IS 50 μg/L WITHIN THE SHALLOW, 50 μg/L DEEP, 50 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. <1000 542 686 43.7j 47.7j 33j 1760 340 <2500 D3 700 700 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-BORON 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-87 BORON ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <50 <50 <50 <50 <50 87.8 <50 <50 926 1930 388 664 2180 305 <50 <50 28 Mj SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR BORON IS 700 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR BORON IS 50 μg/L WITHIN THE SHALLOW, 50 μg/L DEEP, 50 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION 700 ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-BORON 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-88 BORON ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <50 26.6j 26.9j <50 294 1280 1390 1100 276 94.2 363 606 <50 <50 <50 <50 28 72 108 700 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR BORON IS 700 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR BORON IS 50 μg/L WITHIN THE SHALLOW, 50 μg/L DEEP, 50 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-BORON 1/28/2018 01/29/2018 10:36 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-89 BORON ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <50 <50 <50 32.5j <50 2430 6950 3280 M1 26.4j 1540 1550 <50 1670 <50 29.1j <50 <50 28.6 700 70 0 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR BORON IS 700 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR BORON IS 50 μg/L WITHIN THE SHALLOW, 50 μg/L DEEP, 50 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-CADMIUM 1/28/2018 01/29/2018 9:16 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-90 CADMIUM ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN 0.28 CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 0.25 9.3 D3 <0.08 <0.8 <0.08 0.05j <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR CADMIUM IS 2 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR CADMIUM IS 0.08 μg/L WITHIN THE SHALLOW, 0.08 μg/L DEEP, 0.08 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 7.7 5.10 <0.08 <0.08 <0.08 <0.08 0.74 0.09 2 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-CADMIUM 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-91 CADMIUM ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <0.08 0.055j <0.08 0.11 <0.08 0.075j <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08<0.08 <0.08 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR CADMIUM IS 2 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR CADMIUM IS 0.08 μg/L WITHIN THE SHALLOW, 0.08 μg/L DEEP, 0.08 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-CADMIUM 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-92 CADMIUM ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR CADMIUM IS 2 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR CADMIUM IS 0.08 μg/L WITHIN THE SHALLOW, 0.08 μg/L DEEP, 0.08 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-CADMIUM 1/28/2018 01/29/2018 10:36 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-93 CADMIUM ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <0.08 <0.08 <0.08 0.052j 0.22 <0.08 <0.08 <0.08 0.031j 0.14 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 <0.08 † NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR CADMIUM IS 2 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR CADMIUM IS 0.08 μg/L WITHIN THE SHALLOW, 0.08 μg/L DEEP, 0.08 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION †сKEEdZd/KE'ZdZd,EhZZEd^/d^W/&/Wdshdt/d,/Ed,<'ZKhEKEEdZd/KEZE'&KZ SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-CHROMIUM 1/28/2018 01/29/2018 9:16 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-94 CHROMIUM ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN 15 CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 7.5 6.6 D3 2.4 <5 2.2 0.34j 0.85B 0.32j,B 0.64 0.44j 0.73 3.8 0.27j 2.2 7 2.9 1.7 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR CHROMIUM IS 10 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR CHROMIUM IS 6.927 μg/L WITHIN THE SHALLOW, 6.8 μg/L DEEP, 5.6 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. <10 3.2j 1.3 0.23j 0.44j0.53 0.67 0.27j10 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-CHROMIUM 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-95 CHROMIUM ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 0.99 1.1 1.9 0.86 0.64 0.43j 1.8 0.57 1.6 9 0.19j 0.66 0.43j 0.51 1.6 0.49j 0.95 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR CHROMIUM IS 10 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR CHROMIUM IS 6.927 μg/L WITHIN THE SHALLOW, 6.8 μg/L DEEP, 5.6 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-CHROMIUM 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-96 CHROMIUM ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 3 3.7 0.73 0.56 2 0.21j 0.21j, B 0.27j 3.8 2.4 2.5 0.78 0.22j 0.24j SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR CHROMIUM IS 10 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR CHROMIUM IS 6.927 μg/L WITHIN THE SHALLOW, 6.8 μg/L DEEP, 5.6 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-CHROMIUM 1/28/2018 01/29/2018 10:36 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-97 CHROMIUM ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 2.3 2.2 1.5 0.7 B 1.1 0.53 0.17j, B 0.33j, B 3.2 3.2 1.5 0.97 B 1.3 1.7 1 3.3 0.24j, B SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR CHROMIUM IS 10 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR CHROMIUM IS 6.927 μg/L WITHIN THE SHALLOW, 6.8 μg/L DEEP, 5.6 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-CHROMIUM VI 1/28/2018 01/29/2018 9:16 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-98 CHROMIUM VI ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN 6.2 CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 7 3.1 0.064j,D3,M1 0.13j+ 0.015j <0.25 D3 0.56 <0.25 D3 0.015j 0.53 0.29 <0.025 0.74 6.8 2.6 0.0095j <0.025 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR CHROMIUM VI IS 10 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR CHROMIUM VI IS 7.742 μg/L WITHIN THE SHALLOW, 1.2 μg/L DEEP, 0.23 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-CHROMIUM VI 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-99 CHROMIUM VI ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 0.063 0.46 0.42 0.15 0.36 0.032 0.081 0.97 <0.12 D3 0.26 0.0094j <0.025 0.016j 1.5 0.391 <0.5 0.41 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR CHROMIUM VI IS 10 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR CHROMIUM VI IS 7.742 μg/L WITHIN THE SHALLOW, 1.2 μg/L DEEP, 0.23 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-CHROMIUM VI 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-100 CHROMIUM VI ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 3 3.7 0.73 0.56 0.21j 0.21j, B 0.27j 3.8 2.4 0.78 0.22j 0.24j 2 2.5 †сKEEdZd/KE'ZdZd,EhZZEd^/d^W/&/Wdshdt/d,/Ed,<'ZKhEKEEdZd/KEZE'&KZ SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. † † † SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR CHROMIUM VI IS 10 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR CHROMIUM VI IS 7.742 μg/L WITHIN THE SHALLOW, 1.2 μg/L DEEP, 0.23 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-CHROMIUM VI 1/28/2018 01/29/2018 10:36 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-101 CHROMIUM VI ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 1.3 0.12 0.84 0.021j 0.94 0.031 0.041j, D3 0.41 0.0089j 0.085 0.054 0.020j 0.23 0.089 <0.12 D3 0.49 2.4† † †сKEEdZd/KE'ZdZd,EhZZEd^/d^W/&/Wdshdt/d,/Ed,<'ZKhEKEEdZd/KEZE'&KZ SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR CHROMIUM VI IS 10 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR CHROMIUM VI IS 7.742 μg/L WITHIN THE SHALLOW, 1.2 μg/L DEEP, 0.23 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-COBALT 1/28/2018 01/29/2018 9:16 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-102 COBALT ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN 0.12 CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 74.6 3640 D3,M6 0.39 0.88j 0.27 14.2 0.45 25 0.5 5.7 0.75 2.5 0.079j 3 0.052j 0.071j 1.6 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR COBALT IS 1 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR COBALT IS 4.338 μg/L WITHIN THE SHALLOW, 0.5 μg/L DEEP, 0.27 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 3670 805 34.5 0.43 0.29 0.11 56.6 0.05j 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE 1 SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-COBALT 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-103 COBALT ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 0.87 0.079j 0.2 0.24 0.5 1.5 0.1 0.16 B 0.024 j 0.678 0.14 <0.053 j, B 5.7 0.12 0.034 j, B 2 0.089 j, B SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR COBALT IS 1 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR COBALT IS 4.338 μg/L WITHIN THE SHALLOW, 0.5 μg/L DEEP, 0.27 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-COBALT 1/28/2018 01/29/2018 2:51 PM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-104 COBALT ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 1.6 0.11 B 0.3 0.85 0.16 0.072j, B 0.96 0.079j 2.5 1.2 0.34 0.11 11.7 0.048j, B †=CONCENTRATION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THE BACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. † SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR COBALT IS 1 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR COBALT IS 4.338 μg/L WITHIN THE SHALLOW, 0.5 μg/L DEEP, 0.27 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-COBALT 1/28/2018 01/29/2018 10:36 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-105 COBALT ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 0.23 0.2 0.23 9.1 0.022j 3.3 1.1 0.8 0.11 0.55 0.18 2.0 0.069j 0.18 32.3 2 0.069j † 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION †=CONCENTRATION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THE BACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR COBALT IS 1 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR COBALT IS 4.338 μg/L WITHIN THE SHALLOW, 0.5 μg/L DEEP, 0.27 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-IRON 1/28/2018 01/29/2018 9:16 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-106 IRON ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN <50 CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 152 <2500 D3 721 60j+ 446 41100 <50 13500 180 13100 1030 416 78.6 95.5 <50 <50 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR IRON IS 300 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR IRON IS 834.8 μg/L WITHIN THE SHALLOW, 555 μg/L DEEP, 284 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 296 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-IRON 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-107 IRON ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 672 102 210 336 686 1490 97.4 31.5j 49100 606 164 <50 455 40.9 j <50 10800 164 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR IRON IS 300 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR IRON IS 834.8 μg/L WITHIN THE SHALLOW, 555 μg/L DEEP, 284 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-IRON 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-108 IRON ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 34.9j 92.9 192 27.5j 375 143 2100 78.6 416 595 405 195 9230 126 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR IRON IS 300 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR IRON IS 834.8 μg/L WITHIN THE SHALLOW, 555 μg/L DEEP, 284 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-IRON 1/28/2018 01/29/2018 10:36 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-109 IRON ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 318 436 463 1130 <50 2340 1110 11500 104 642 454 133 69.2 51.6 2700 406 39.4j 30 0 †сKEEdZd/KE'ZdZd,EhZZEd^/d^W/&/Wdshdt/d,/Ed,<'ZKhEKEEdZd/KEZE'&KZ SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. † † SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR IRON IS 300 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR IRON IS 834.8 μg/L WITHIN THE SHALLOW, 555 μg/L DEEP, 284 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION INFERRED 2L STANDARD SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-MANGANESE 1/28/2018 01/29/2018 2:47 PM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-110 MANGANESE ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN 6.7 CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 333 166000 433 129 59.9 7640 7.2 5390 324 2920 126 214 39.1 15.8 10 6.6 124 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR MANGANESE IS 50 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR MANGANESE IS 577.9 μg/L WITHIN THE SHALLOW, 60.4 μg/L DEEP, 39.1 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015.50140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) (HATCHES TOWARD DECLINING CONCENTRATIONS) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION50 D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-MANGANESE 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-111 MANGANESE ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 608 6.6 23.1 8.7 52.1 752 4.2j 2.6j 8290 41.1 68 14.7 488 122 4.7j 7120 5.3 50 † SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR MANGANESE IS 50 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR MANGANESE IS 577.9 μg/L WITHIN THE SHALLOW, 60.4 μg/L DEEP, 39.1 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION †= CONCENTRATION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THE BACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-MANGANESE 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-112 MANGANESE ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 157 11.5 278 17.5 9.9 163 527 39.1 214 219 114 19.1 2160 53.1 † 50 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR MANGANESE IS 50 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR MANGANESE IS 577.9 μg/L WITHIN THE SHALLOW, 60.4 μg/L DEEP, 39.1 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION †= CONCENTRATION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THE BACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-MANGANESE 1/28/2018 01/29/2018 10:36 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-113 MANGANESE ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 17.9 34.6 26.5 719 3.2j 209 218 1190 123 143 20.4 6.0 1160 770 3.2j 454 74.1 † 50 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR MANGANESE IS 50 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR MANGANESE IS 577.9 μg/L WITHIN THE SHALLOW, 60.4 μg/L DEEP, 39.1 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION †= CONCENTRATION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THE BACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-MOLYBDENUM 1/28/2018 01/29/2018 9:16 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-114 MOLYBDENUM ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN 0.39j CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <0.5 <5 D3 1.1 2.2j 1.4 6.5 0.37j 2.6 3.6 3.4 16.3 180 157 <0.5 0.5 1.1 1.9 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR MOLYBDENUM IS NOT ESTABLISHED. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR MOLYBDENUM IS 0.849 μg/L WITHIN THE SHALLOW, 30.2 μg/L DEEP, 4.7 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 1 0.97 0.92 <10 <0.5 <0.5 <0.5 <0.5 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-MOLYBDENUM 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-115 MOLYBDENUM ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 8.2 0.41j, B 0.43j 1.6 0.11j 2.3 1.5 2.4 4.5 <0.5 1.6 0.38j, B <0.5 0.17j <0.5 <0.5 0.758 † SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR MOLYBDENUM IS NOT ESTABLISHED. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR MOLYBDENUM IS 0.849 μg/L WITHIN THE SHALLOW, 30.2 μg/L DEEP, 4.7 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION †сKEEdZd/KE'ZdZd,EhZZEd^/d^W/&/Wdshdt/d,/Ed,<'ZKhEKEEdZd/KEZE'&KZ SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-MOLYBDENUM 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-116 MOLYBDENUM ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <0.5 1.3 7.1 <0.5 0.94 2.5 9.5 157 180 0.12j 1.6 1.3 <0.5 57.3 † SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR MOLYBDENUM IS NOT ESTABLISHED. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR MOLYBDENUM IS 0.849 μg/L WITHIN THE SHALLOW, 30.2 μg/L DEEP, 4.7 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION †сKEEdZd/KE'ZdZd,EhZZEd^/d^W/&/Wdshdt/d,/Ed,<'ZKhEKEEdZd/KEZE'&KZ SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-MOLYBDENUM 1/28/2018 01/29/2018 2:55 PM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-117 MOLYBDENUM ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 0.41j 4.3 1.5 2.5B 13.7 2950 <5 M1 11.1 1.5 1.5 9.5 2.5 <0.5 <0.5 <0.5 0.14j † SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR MOLYBDENUM IS NOT ESTABLISHED. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR MOLYBDENUM IS 0.849 μg/L WITHIN THE SHALLOW, 30.2 μg/L DEEP, 4.7 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION †сKEEdZd/KE'ZdZd,EhZZEd^/d^W/&/Wdshdt/d,/Ed,<'ZKhEKEEdZd/KEZE'&KZ SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-NICKEL 1/28/2018 01/29/2018 9:16 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-118 NICKEL ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN 5.8 CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 11.1 821 D3 1.1 <5 1.7 1.9 3.5 3.8 4.2 0.75 2 6.4 1.7 0.84 1 <0.5 2.1 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR NICKEL IS 100 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR NICKEL IS 4.024 μg/L WITHIN THE SHALLOW, 8.1 μg/L DEEP, 3.4 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 100 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-NICKEL 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-119 NICKEL ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 2.8 0.5j 2.3 <0.5 1.3 7.4 0.98 0.62 0.57 0.99 4.3 <0.5 0.49j 3.6 <0.5 <0.5 0.47j SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR NICKEL IS 100 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR NICKEL IS 4.024 μg/L WITHIN THE SHALLOW, 8.1 μg/L DEEP, 3.4 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-NICKEL 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-120 NICKEL ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 6.1 1.9 0.66 2.4 2.1 1.8 1.8 1.7 6.4 3.9 1.6 <0.5 <0.5 0.57 † = CONCENTRATION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THE BACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. † SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR NICKEL IS 100 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR NICKEL IS 4.024 μg/L WITHIN THE SHALLOW, 8.1 μg/L DEEP, 3.4 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-NICKEL 1/28/2018 01/29/2018 10:36 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-121 NICKEL ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 0.71 2.1 0.92 2.7 <0.5 32.4 3.7 1.6 0.61 4.3 2.4 4.9 0.74 1.9 3.8 0.84 0.56 † † = CONCENTRATION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THE BACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR NICKEL IS 100 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR NICKEL IS 4.024 μg/L WITHIN THE SHALLOW, 8.1 μg/L DEEP, 3.4 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-PH 1/28/2018 01/29/2018 9:16 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-122 pH ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN 6.4 CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 4.1 3.6 7.3 6.9 7.4 6.3 5.7 5.2 7.5 6.6 6.4 6.2 8.4 5.0 6.7 7.2 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. 140 CONCENTRATION IN S.U. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 3.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 4.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-PH 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-123 pH ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 6.4 6.2 5.9 7.0 6.1 5.8 7.5 7.6 6.5 5.8 8.3 6.8 5.4 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. 140 CONCENTRATION IN S.U. NOTES 1. DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2. ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 3. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 4. DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-PH 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-124 pH ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 4.8 7.4 8.2 5.5 6.2 7.4 6.9 8.4 6.2 5.6 7.9 7.7 5.9 7.5 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. 140 CONCENTRATION IN S.U. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 3.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 4.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-PH 1/28/2018 01/29/2018 10:36 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-125 pH ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 7.5 8.3 6.8 5.2 7.7 6.6 7.8 6.7 8.4 6.2 7.7 7.5 5.1 6.1 6.1 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. 140 CONCENTRATION IN S.U. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 3.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 4.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-RADIUM 1/28/2018 01/29/2018 9:16 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-126 RADIUM ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN 1.61 CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 2.035 0.3412 1.055 0.296 0.87 0.3746 0.355 0.2458 0.529 0.338 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE FEDERAL MCL FOR RADIUM IS 5 pCi/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR RADIUM IS 1.386 pCi/L WITHIN THE SHALLOW, 0.613 pCi/L DEEP, 1.103 pCi/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 1.632 0.398 -0.138 0.2533 0.875 0.9010.776 0.956 0.742 140 CONCENTRATION IN pCi/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-RADIUM 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-127 RADIUM ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 0.1424 1.277 0.7976 1.342 0.932 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE FEDERAL MCL FOR RADIUM IS 5 pCi/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR RADIUM IS 1.386 pCi/L WITHIN THE SHALLOW, 0.613 pCi/L DEEP, 1.103 pCi/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN pCi/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-RADIUM 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-128 RADIUM ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 0.582 0.558 1.052 0.65 0.427 0.355 0.3746 0.1786 0.895 0.661 0.719 1.238 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE FEDERAL MCL FOR RADIUM IS 5 pCi/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR RADIUM IS 1.386 pCi/L WITHIN THE SHALLOW, 0.613 pCi/L DEEP, 1.103 pCi/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN pCi/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-RADIUM 1/28/2018 01/29/2018 10:36 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-129 RADIUM ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 1.103 0.343 1.333 1.142 1.525 0.777 0.069j 0.976 0.094j 0.12 †сKEEdZd/KE'ZdZd,EhZZEd^/d^W/&/Wdshdt/d,/Ed,<'ZKhEKEEdZd/KEZE'&KZ SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. † 0.69 1.218 0.4232 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE FEDERAL MCL FOR RADIUM IS 5 pCi/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR RADIUM IS 1.386 pCi/L WITHIN THE SHALLOW, 0.613 pCi/L DEEP, 1.103 pCi/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN pCi/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-SELENIUM 1/28/2018 01/29/2018 9:16 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-130 SELENIUM ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 14.1 765 0.66 <0.5 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR SELENIUM IS 20 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR SELENIUM IS 0.5 μg/L WITHIN THE SHALLOW, 0.5 μg/L DEEP, 0.5 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. <0.5 <0.5 <0.5 0.72 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 2.4 <0.5 <0.5 <0.5<0.5 526 41.7 5.7 <0.5 <0.56.6 20 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-SELENIUM 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-131 SELENIUM ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <0.5 <0.5 0.34j <0.5 0.32j <0.5 <0.5 0.6 <0.5 2.2 1.6 0.6<0.5 <0.5 <0.5 <0.5 <0.5 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR SELENIUM IS 20 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR SELENIUM IS 0.5 μg/L WITHIN THE SHALLOW, 0.5 μg/L DEEP, 0.5 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-SELENIUM 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-132 SELENIUM ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <0.5 <0.5 <0.5 0.32j 0.44j <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR SELENIUM IS 20 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR SELENIUM IS 0.5 μg/L WITHIN THE SHALLOW, 0.5 μg/L DEEP, 0.5 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-SELENIUM 1/28/2018 01/29/2018 10:36 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-133 SELENIUM ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 0.35j <0.5 49.1 <0.5 0.63 <0.5 0.34j <0.5 <0.5 <0.5 0.48j <0.5 <0.5 <0.5 <0.5 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR SELENIUM IS 20 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR SELENIUM IS 0.5 μg/L WITHIN THE SHALLOW, 0.5 μg/L DEEP, 0.5 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-STRONTIUM 1/28/2018 01/29/2018 9:16 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-134 STRONTIUM ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN 526 CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 18.4 1670 868 696 266 3380 1570 1720 9 246 223 617 456 226 1030 523 146 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR STRONTIUM IS NOT ESTABLISHED. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR STRONTIUM IS 286 μg/L WITHIN THE SHALLOW, 200 μg/L DEEP, 106 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) (HATCHES TOWARD DECLINING CONCENTRATIONS) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-STRONTIUM 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-135 STRONTIUM ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 199 105 119 145 130 604 111 128 1820 268 134 249 356 157 268 1360 132 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR STRONTIUM IS NOT ESTABLISHED. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR STRONTIUM IS 286 μg/L WITHIN THE SHALLOW, 200 μg/L DEEP, 106 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-STRONTIUM 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-136 STRONTIUM ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 24.6 118 154 53.8 198 106 850 1720 1570 212 223 123 84.4 714 † = CONCENTRATION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THE BACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. † SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR STRONTIUM IS NOT ESTABLISHED. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR STRONTIUM IS 286 μg/L WITHIN THE SHALLOW, 200 μg/L DEEP, 106 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-STRONTIUM 1/28/2018 01/29/2018 10:36 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-137 STRONTIUM ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 93.6 96.6 109 60.7 117 2130 1770 3490 90.5 380 272 11.0 90 317 54.1 216 205 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR STRONTIUM IS NOT ESTABLISHED. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR STRONTIUM IS 286 μg/L WITHIN THE SHALLOW, 200 μg/L DEEP, 106 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-SULFATE 1/28/2018 01/29/2018 9:16 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-138 SULFATE ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN 105 CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 108 1790 137 6.5 383 45.8 44.5 33.6 21.1 67 62.4 59.5 124 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR SULFATE IS 250 mg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR SULFATE IS 3.641 mg/L WITHIN THE SHALLOW, 16.2 mg/L DEEP, 2.9 mg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. <1 11.2 12.7270 M6 250 1860 M6 684 169 48 4.9 1320 35.3 18.1 140 CONCENTRATION IN mg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-SULFATE 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-139 SULFATE ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 1.2 0.88j 0.76j 2.7 2.3 18.5 4 2.8 234 118 41.4 61.2 146 10.9 4.5 164 1.6 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR SULFATE IS 250 mg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR SULFATE IS 3.641 mg/L WITHIN THE SHALLOW, 16.2 mg/L DEEP, 2.9 mg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN mg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-SULFATE 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-140 SULFATE ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 1.1 2.3 2 <1 0.68j 3.4 20.1 59.5 62.4 72.6 9.4 35.3 20.6 32.9 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR SULFATE IS 250 mg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR SULFATE IS 3.641 mg/L WITHIN THE SHALLOW, 16.2 mg/L DEEP, 2.9 mg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN mg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-SULFATE 1/28/2018 01/29/2018 10:36 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-141 SULFATE ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 2.2 8.2 2.7 21.1 214 140 75.8 12.1 43.3 22 8.1 40 2.2 17.3 23.7† † † NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR SULFATE IS 250 mg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR SULFATE IS 3.641 mg/L WITHIN THE SHALLOW, 16.2 mg/L DEEP, 2.9 mg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN mg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION †сKEEdZd/KE'ZdZd,EhZZEd^/d^W/&/Wdshdt/d,/Ed,<'ZKhEKEEdZd/KEZE'&KZ SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-THALLIUM 1/28/2018 01/29/2018 9:16 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-142 THALLIUM ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN 0.061j CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 0.11 1.5 D3, B <0.1 <1 <0.1 0.092j <0.1 0.052j <0.1 <0.1 <0.1 0.18 <0.1 0.035j 0.022j 0.047j SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA (IMAC) FOR THALLIUM IS 0.2 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR THALLIUM IS 0.1 μg/L WITHIN THE SHALLOW, 0.1 μg/L DEEP, 0.1 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 0.2 <0.1 <0.1 1.9 2.1 3.1 0.17 <0.1 0.055j 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-THALLIUM 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-143 THALLIUM ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <0.1 <0.1 0.034j <0.1 0.13 0.035j <0.1 <0.1 <0.1 <0.1 <0.1 0.073j<0.1 <0.1 <0.1 <0.1 <0.1 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA (IMAC) FOR THALLIUM IS 0.2 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR THALLIUM IS 0.1 μg/L WITHIN THE SHALLOW, 0.1 μg/L DEEP, 0.1 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-THALLIUM 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-144 THALLIUM ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 0.022j <0.1 <0.1 <0.1 <0.1 0.046j <0.1 0.18 <0.1 <0.1 0.027j <0.1 <0.1 <0.1 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA (IMAC) FOR THALLIUM IS 0.2 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR THALLIUM IS 0.1 μg/L WITHIN THE SHALLOW, 0.1 μg/L DEEP, 0.1 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-THALLIUM 1/28/2018 01/29/2018 10:36 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-145 THALLIUM ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <0.1 0.063j <0.1 0.19 0.042j 0.063j <0.1 <0.1 <0.1 0.035j <0.1 <0.1 <0.1 <0.1 <0.1 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA (IMAC) FOR THALLIUM IS 0.2 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR THALLIUM IS 0.1 μg/L WITHIN THE SHALLOW, 0.1 μg/L DEEP, 0.1 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-TDS 1/28/2018 01/29/2018 9:16 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-146 TOTAL DISSOLVED SOLIDS ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN 278 CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 175 2670 629 357 126 838 160 171 154 230 212 238 234 54 161 151 363 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR TDS IS 500 mg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR TDS IS 180.957 mg/L WITHIN THE SHALLOW, 126 mg/L DEEP, 147 mg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 209 276 109 239011602650 203401 500 140 CONCENTRATION IN mg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) INFERRED 2L STANDARD GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-TDS 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-147 TOTAL DISSOLVED SOLIDS ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 75 73 61 112 82 D6 152 101 100 677 210 164 177 256 107 147 417 94 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR TDS IS 500 mg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR TDS IS 180.957 mg/L WITHIN THE SHALLOW, 126 mg/L DEEP, 147 mg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN mg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-TDS 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-148 TOTAL DISSOLVED SOLIDS ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <25 115 148 44 103 83 129 234 238 148 153 126 104 118 † = CONCENTRATION GREATER THAN CURRENT SITE SPECIFIC PBTV BUT WITHIN THE BACKGROUND CONCENTRATION RANGE FOR SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. † SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1. DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2. THE NORTH CAROLINA 2L FOR TDS IS 500 mg/L. 3. PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR TDS IS 180.957 mg/L WITHIN THE SHALLOW, 126 mg/L DEEP, 147 mg/L BEDROCK FLOW LAYERS. 4. ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6. DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN mg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-TDS 1/28/2018 01/29/2018 10:36 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-149 TOTAL DISSOLVED SOLIDS ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 89 110 73 D6 87 97 D6 690 359 568 127 240 261 37 108 275 42 103 130 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA 2L FOR TDS IS 500 mg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR TDS IS 180.957 mg/L WITHIN THE SHALLOW, 126 mg/L DEEP, 147 mg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN mg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-URANIUM 1/28/2018 01/29/2018 9:16 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-150 URANIUM ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN 0.00039j CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 0.000092j 0.0061 0.0016 0.0018j 0.00035j 0.00061 0.0096 0.0147 <0.0005 0.00024j 1.3 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE FEDERAL MCL FOR URANIUM IS 0.03 μg/L . 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR URANIUM IS 0.001937 μg/L WITHIN THE SHALLOW, 0.0005 μg/L DEEP, 0.00039 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 0.0015 140 CONCENTRATION IN μg/mL INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-URANIUM 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-151 URANIUM ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 0.00018j 0.00037j 0.00056 0.00016j <0.0005 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE FEDERAL MCL FOR URANIUM IS 0.03 μg/L . 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR URANIUM IS 0.001937 μg/L WITHIN THE SHALLOW, 0.0005 μg/L DEEP, 0.00039 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/mL INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-URANIUM 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-152 URANIUM ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <0.0005 0.00023j 0.0009 <0.0005 0.0147 0.0096 0.00035j <0.0005 <0.0005 0.00028 <0.0005 †сKEEdZd/KE'ZdZd,EhZZEd^/d^W/&/Wdshdt/d,/Ed,<'ZKhEKEEdZd/KEZE'&KZ SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. † 0.00064 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE FEDERAL MCL FOR URANIUM IS 0.03 μg/L . 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR URANIUM IS 0.001937 μg/L WITHIN THE SHALLOW, 0.0005 μg/L DEEP, 0.00039 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/mL INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-URANIUM 1/28/2018 01/29/2018 10:36 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-153 URANIUM ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <0.0005 6.7E-05j 0.0387 0.0161 0.0015 0.00017j <0.0005 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE FEDERAL MCL FOR URANIUM IS 0.03 μg/L . 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR URANIUM IS 0.001937 μg/L WITHIN THE SHALLOW, 0.0005 μg/L DEEP, 0.00039 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/mL INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION SAPROLITE SAPROLITE SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH PORE WATER FILL ASH B B' (NORTH)(SOUTH) RETIRED ASH BASIN ASH LANDFILL ASH BASIN PRIMARY POND 2 GWA-7SGWA-7DGWA-6SGWA-6DAGWA-6BRAB-33SAB-33DAB-29SLAB-29DAB-29SAB-27DAB-27SAB-25SAB-25SLAB-25BRUAB-25BRASH GWA-1SGWA-1DGWA-1BRAB-27BRGWA-6BRACCR-4SACCR-4DACCR-5SCCR-5DCCR-6SCCR-6DCCR-21SCCR-21DINACTIVE ASH BASIN BEDROCK BEDROCK BEDROCK ASH ASH PORE WATER ASH PORE WATER TRANSITION ZONE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL)RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) ACTIVE ASH BASIN INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-VANADIUM 1/28/2018 01/29/2018 9:16 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_B-COI.dwg FIGURE 11-154 VANADIUM ANALYTICAL RESULTS CROSS SECTION B-B' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CAROLINAS SCALE: AS SHOWN 8.5 CROSS SECTION LOCATIONB'BNOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 0.35 B <3 D3 1.2 4.3 5 0.42 B 7.3 2.3 1.3 0.68 10.4 35.2 6.1 0.46 8.4 10.1 5.1 SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA (IMAC) FOR VANADIUM IS 0.3 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR VANADIUM IS 5.33 μg/L WITHIN THE SHALLOW, 9.6 μg/L DEEP, 10.8 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION D D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE SAPROLITE ASH ASH ASH PORE WATER FILL FILL FILL CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.) ASH PORE WATER TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK ALLUVIUMGWA-16SGWA-16DGWA-19SGWA-19DAB-37DAB-37SAB-36DAB-36SSB-1AB-35SAB-35DAB-35BRSB-6AB-31DAB-31SGWA-4SGWA-4DSTRUCTURAL FILLASH STORAGE AREA RETIRED ASH BASIN ASH LANDFILL GWA-4BRBEDROCK GWA-15DGWA-15SAB-34SAB-34DAL19AL8AL4AL5AL117ASH PORE WATER INACTIVE ASH BASIN SOUTH POINT ROADALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) D'D ACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-VANADIUM 1/28/2018 01/29/2018 10:24 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_D-COI.dwg FIGURE 11-155 VANADIUM ANALYTICAL RESULTS CROSS SECTION D-D' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 125 250 500 HORIZONTAL SCALE: 1" = 500' VERTICAL SCALE: 1" = 100' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 1.8 8.2 1 10 9.1 1.4 8 7.2 0.97 2 5.7 4.3 0.61 44 4.9 11.9 0.12j SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA (IMAC) FOR VANADIUM IS 0.3 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR VANADIUM IS 5.33 μg/L WITHIN THE SHALLOW, 9.6 μg/L DEEP, 10.8 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L INFERRED PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN E E'(WEST) (EAST) CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-21SGWA-21DGWA-21BRAB-13DAB-13SAB-24SAB-24DAB-24SLAB-25SAB-25SLAB-25BRUAB-25BRAB-26DAB-26SGWA-3SGWA-3DGWA-3BRSAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE FILL ASH ASH PORE WATER ASH PORE WATER BEDROCK BEDROCK BEDROCK PRIMARY POND 2PRIMARY POND 1 PRIMARY POND 3 ASH BASIN GWA-21DAAB-24BRGWA-3BRAASHAL59AL72AL73AL74 SAPROLITE 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-VANADIUM 1/28/2018 01/29/2018 10:28 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_E-COI.dwg FIGURE 11-156 VANADIUM ANALYTICAL RESULTS CROSS SECTION E-E' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION E'E CROSS SECTION LOCATION NOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. <0.3 15.3 0.74 6 8.1 11.1 6.1 35.2 1.7 6.2 9.2 0.15j,B 2.7 15.9 †сKEEdZd/KE'ZdZd,EhZZEd^/d^W/&/Wdshdt/d,/Ed,<'ZKhEKEEdZd/KEZE'&KZ SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. † † SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA (IMAC) FOR VANADIUM IS 0.3 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR VANADIUM IS 5.33 μg/L WITHIN THE SHALLOW, 9.6 μg/L DEEP, 10.8 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION FILL F F' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE ASH PORE WATER ASH PORE WATER FILL ASH ASH CATAWBA RIVER (LAKE WYLIE) EL. 565' (APPROX.)GWA-24SGWA-24DGWA-24BRAB-20SAB-20DAB-21SAB-21DAB-21SLAB-21BRAB-22SAB-22DAB-10SAB-10DGWA-9SGWA-9DASH BASIN ASH WATER IN BASINAB-21BRLGWA-24SAAB-22BRAB-22BRLGWA-9BRAL47SAPROLITE ALLEN STEAM STATION SOUTHPOINT ROAD(ASH STORAGE/ STRUCTURAL FILL) ACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL ARMS T R O N G R O A D PLANT ALLEN ROAD CANAL ROAD CATAWBA RIVER (LAKE WYLIE) INACTIVE ASH BASIN 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY: CHRIS SUTTELL DATE:ADAM FEIGL/ C. NEWELL XSECT-VANADIUM 1/28/2018 01/29/2018 10:36 AM P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\XSEC\Cross Sections\Allen_XSects_F-COI.dwg FIGURE 11-157 VANADIUM ANALYTICAL RESULTS CROSS SECTION F-F' ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA CAROLINAS SCALE: AS SHOWN 0 80 160 320 HORIZONTAL SCALE: 1" = 320' VERTICAL SCALE: 1" = 64' 5X VERTICAL EXAGGERATION F'F CROSS SECTION LOCATION NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. 13.3 9.3 6.2 0.77 11.3 5.7 4.6 7.8 2.3 15.3 1.7 0.40 9.8 4.9 1.4 0.91 4.7 † †сKEEdZd/KE'ZdZd,EhZZEd^/d^W/&/Wdshdt/d,/Ed,<'ZKhEKEEdZd/KEZE'&KZ SIMILAR PIEDMONT GEOLOGIC SETTINGS. DUE TO GROUNDWATER FLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS, CONCENTRATION DOES NOT SUGGEST IMPACT FROM THE ASH BASIN. SOURCE INFORMATION: ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON SEPTEMBER 11, 2017. 2.THE NORTH CAROLINA (IMAC) FOR VANADIUM IS 0.3 μg/L. 3.PROVISIONAL BACKGROUND THRESHOLD VALUE (PBTV) FOR VANADIUM IS 5.33 μg/L WITHIN THE SHALLOW, 9.6 μg/L DEEP, 10.8 μg/L BEDROCK FLOW LAYERS. 4.ALL VERTICAL ELEVATIONS ARE MEASURED IN FEET, NORTH AMERICA VERTICAL DATUM (NAVD) OF 1988. 5.CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOST RECENT VALID SAMPLE RESULTS FOR EACH WELL. DATA WITH HIGH TURBIDITY (>10 NTU) OR RESULTS THAT INDICATE POTENTIAL GROUT CONTAMINATION OF THE WELL (PH>8.5) HAVE BEEN REMOVED FROM DATASET. COLLECTION DATES DEPICTED ON FIGURE RANGE FROM MARCH 2010 TO NOVEMBER 2017. 6.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. 140 CONCENTRATION IN μg/L GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-22D GWA-22S AB-35S WELL IN TRANSITION ZONE WELL IN ALLUVIUM/SAPROLITE WELL IN BEDROCK WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BEDROCK TRANSITION ZONE ALLUVIUM FILL AL34 WATER SUPPLY WELL - (DEPTH UNKNOWN) SAPROLITE SHALLOW ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP ZONE FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION &< &< &< &< &<&< &< &<&< &< &< &< &<&<&< &< &< &< &< &< &< &< !( LAKE WYLIE ALLEN STEAM STATION COAL PILE INACTIVE ASH BASIN S-9 GWA-6S/D/DA/BR GWA-7S/D AB-33S/D CP-6S/D CP-5S/D CP-4S/D CP-3S/D CP-2S/D CP-1S/D CCR-9S/D CCR-8S/DCCR-7S/DCCR-6S/D CCR-5S/D CCR-4S/D 600 610 6 2 0 5906 3 0 6406505 8 0 570 660600600 57 0 6105906205 8 0 610 580 590 580580 590 6305906105 8 0 610 6005906 3 0 6205 9 0 6405905905 8 0 610Figure 11-158PROPOSED COAL PILE ASSESSMENT SAMPLE LOCATIONSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/18/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\MISC\ALLEN_PropCoalPile_AssessmentWells.mxd 80 0 80 16040 GRAPHIC SCALE IN FEET NOTES:COAL PILE ASSESSMENT IS A SEPARATE ASSESSMENT. A WORKPLAN FOR THIS ASSESSMENT WAS PROVIDED ON 01/12/2018 PROPOSED WELL AND BORING LOCATIONS ARE APPROXIMATEAND MAY BE ADJUSTED BASED ON ACCESSIBILITY AND FIELDCONDITIONS. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM WSP, APRIL2014. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTHCAROLINA STATE PLANE COORDINATE SYSTEM FIPS 3200(NAD83/2011). LEGEND &<PROPOSED COAL PILE ASSESSMENT SOILBORING AND MONITORING WELL LOCATION &<EXISTING CCR RULE MONITORING WELLLOCATION (APPROXIMATE) &<EXISTING CAMA GROUNDWATERMONITORING WELL LOCATION !(AOW AND SEDIMENT SAMPLE LOCATION APPROXIMATE EXTENT OF COAL PILESTORAGE AREA WASTE BOUNDARY DUKE ENERGY PLANT BOUNDARY TOPOGRAPHIC CONTOURS (10' INTERVAL) TOPOGRAPHIC CONTOURS (2' INTERVAL) SW-D1 SW-U1 AL8-? MAP SOURCE NOTES: NOT ALL UTILITIES ARE IDENTIFIED ON THIS DRAWING. THE UTILITIES SHOWN ON THIS DRAWING ARE VISUAL AIDS. THE HORIZONTAL AND VERTICAL LOCATIONS OF THE UTLITIES HAVE NOT BEEN FIELD VERIFIED. ANY UTILITIES SHOWN ARE APPROXIMATE. LEGEND WELL IN DEEP ZONE WELL IN SHALLOW ZONE WELL IN BEDROCK ZONE ABMW-07 WELL IN ASH PORE WATER WELL ABANDONED ASH BASIN COMPLIANCE BOUNDARY PARCEL LINE DUKE ENERGY (APPROXIMATE) ASH BASIN WASTE BOUNDARY WATER SUPPLY WELL SAMPLED BY DEQ WATER SAMPLE LOCATION SAMPLED BY DEQ FIGURE 11-159 SOLID PHASE - GROUNDWATER INTERACTION DATA MAP ALLEN STEAM STATION 253 PLANT ALLEN RD BELMONT, NORTH CAROLINA DUKE ENERGY CAROLINAS FIG 11-159 ( GW INTERACTION) L. DRAGO C. NEWELL PROJECT MANAGER: LAYOUT NAME: DRAWN BY: CHECKED BY: C. SUTTELL DATE: DATE: www.synterracorp.com 148 River Street, Suite 220 Greenville, South Carolina 29601 864-421-9999 GRAPHIC SCALE 4002001000200 (IN FEET) AREA OF WETNESS (AOW) SAMPLE LOCATION WATER SUPPLY WELL NOT SAMPLED BY DEQ APPROXIMATE STREAM (NON-JD) TOPOGRAPHY IS BASED ON LIDAR BARE EARTH DATA OBTAINED FROM THE FRIS\NORTH CAROLINA FLOOD RISK INFORMATION SYSTEM AT http://fris.nc.gov/fris/Download.aspx?FIPS=031&ST=NC&user=General%20Public AND A DRAWING TITLED AERIAL TOPOGRAPHIC SURVEY-ALLEN STEAM STATION BY WSP, JOB NUMBER 157002.00 AND DRAWING FILE NAME APRIL 2014_ALLEN_FINAL_10-30-15.DWG SAMPLE LOCATIONS WERE OBTAINED FROM HDR INFORMATION AND MAY BE APPROXIMATE IN SOME CASES. SOIL OR GEOTECHNICAL BORING APPROXIMATE POND OR RESERVOIR (NON-JD) APPROXIMATE EFFLUENT CHANNEL APPROXIMATE ASH BASIN PONDED WATER AB-37S AB-37D AB-36S AB-36D SB-1 AB-35D AB-35S AB-35BR SB-6 SB-2 SB-4 SB-3 AB-2D AB-2 GWA-22S GWA-22D AB-13S AB-13D S-10 OW-18 AB-30S AB-30D AB-28D AB-28S OW-19 OW-12 OW-8 AB-34S AB-34D SB-5 OW-3 AB-39S AB-39D OW-7 AB-33D AB-33S CCR-5DCCR-5 CCR-6DCCR-6 CCR-7D CCR-7S CCR-8D CCR-8S CCR-9S CCR-9D OW-5 S-9 OW-10 AB-32S AB-32D OW-9 OW-20 AB-31D AB-31S AB-29D AB-29S AB-29SL AB-27DAB-27BR AB-27S SW-4 SW-3 GWA-5D GWA-5S GWA-5BRA CCR-11S CCR-11D CCR-11DA OW-16 GWA-4D GWA-4S GWA-4BR AB-9DAB-9S SW-7 ANSW-16 CCR-14S CCR-14D AB-26D AB-26S GWA-3D GWA-3S GWA-3BRA SB-9 SW-2 CCR-17S CCR-17D S-5 S-6 S-7 CCR-16D CCR-16S S-8B S-8 ANSW-15 S-4 ANSP002 AB-10D AB-10S ANSP002 S-3 ANWW-2 S-2 CCR-18S CCR-18D AB-22D AB-22BRL AB-22S SW-1 ANSP005 CCR-20SCCR-20D CCR-22S CCR-22DA AB-11D CCR-23D CCR-23S GWA-2D GWA-2S GWA-1D GWA-1S GWA-1BR S-1 AB-12S AB-12D GWA-26S AB-5 pH WELL CCR-21D CCR-21S AB-21S AB-21D AB-21SLAB-21BR AB-21BRL SB-8 AB-23BRUAB-23S AB-20S AB-20D GWA-9D GWA-9BR GWA-9S SW-5 AB-4S AB-4D AB-4BR AL49 AL58AL57 AL55 GWA-23D GWA-23S BGSB-GWA-23 AL51 AL56 AL54 AB-24S AB-24D AB-24BRAB-24SL ANWW-3 AB-14D AB-14BR AL59 AL60AL61AL62 AL67 AL68 AL69 AL70 AL71 AL63 AL72 AL73 AL53AL52 AL66 AL65 AL64 SB-7 AB-38D AB-38S AB-38BR GWA-18D GWA-18S CCR-1SCCR-1DA CCR-BG-1SCCR-BG-1D AB-1R AB-1 GWA-17DGWA-17S CCR-2S CCR-2D GWA-8D GWA-8SA BG-4D BG-4S BG-4BR AL133 AL1 AL131 BGSB-BG-3 BG-3S BG-2D BG-2S BG-2BRA-2 BGSB-BG-2 GWA-16DGWA-16S AL139 AL3 AL96 AL95 BGSB-BG-1 BG-1S AL35 AL101 AL48 AL93 AL94 AL114 AL47 AL142 AL45 AL46 AL37 AL44 AL43AL38 AL36 AL39 AL50 GWA-24D GWA-24SGWA-24BR AB-25BR AB-25BRU AB-25S AB-25SL AL113 AL121 AL141 AL74 AL100 AL20 AL22 AL34 AL21 AL23 AL33 AL32 AL24AL25 GWA-21DA GWA-21S GWA-21BR AL75 AL76 AL84 AL83 AL82 AL81 AL78 AL77 AL79AL80 GWA-14S GWA-14DA AL31 AL30 AL32-?? AL7 AL123 AL102 AL15 AL14 AL13 AL12 AL136 AL140 AL11 AL10 AL12 AL116 AL117 AL9 AL118 AL8 AL4 AL5 GWA-19D GWA-19S AL19 AL18 AL17 AL16 GWA-15D GWA-15S AL6 AL29 AL28 AL110 AL27 AL26 AL130AL115 AL138 AL135 ANWW-4 SW-6 ANWW-1 ANSP001 ANTD001 AB-6AAB-6R AL111 AL108AL85 AL97 AL88 ANFD001 NPDES REGULATED PLANT WATER FEATURE NPDES REGULATED FLOW DIRECTION STAIRS ACTIVE ASH BASIN DISCHARGE TOWER PRIMARY POND 3 PRIMARY POND 2 PRIMARY POND 1 INACTIVE ASH BASIN ASH STORAGE STRUCTURAL FILL ASH STORAGE INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL-PHASE I PERMIT NO. 3612 WILDLIFE RD FARM RD MILWOOD LN IDELWOOD LNARMST R O N G R D HIGHLAND WAY HEATHER GLENN CT CAMDEN CTHIGHLA N D PLJOHN D O U G L A S D R WARREN DR MITCHELL STMITCHELL STSOUTHPOINT D R RIVER R U N ARMS T R O N G R DLAKE M IST DR RIVE R R U N REESE WI L S O N R D NUTALL OAK LN NUTALL OAK LN WOODBEND DR PLANT A L L E N R D CANAL RD BOAT C LUB RDSOUTHPOINT RDSOUTHPOINT RD (NC HWY 273)STRUCTURAL FILL STRUCTURAL FILL STRUCTURAL FILL POWER PLANT SOUTH POINT FIRE DEPARTMENT EATON CORPORATION SAILAWAY BAY LANDFILL COMPLIANCE BOUNDARY LANDFILL BOUNDARY DORS FILL BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY 1/27/2018 1/27/2018 OW-6 OW-5 OW-4 OW-3 OW-2 OW-8 OW-1 HOLDING BASIN BG-2BR BG-3D GWA-8S CCR-1D GWA-14D GWA-21D SOUTHPOINT RD (NC HWY 273)SOUTHPOINT RD (NC HWY 273)GWA-26D BG-1D GWA-1BR GWA-3BR AB-8 STAIRS 48" HDPE DISCHARGE PIPE CULVERT CULVERT DISCHARGE TOWER HEAD WALL EMERGENCY SPILLWAY PIPES OW-5 OBSERVATION WELL AT NEW HOLDING BASIN DEWATERING WELL AT NEW HOLDING BASIN GWA-5BR LAKE WYLIE (CATAWBA RIVER ) P-1 PIEZOMETER IN UNKNOWN ZONE (AECOM DATA) OW-15 OW-16 OW-18 OW-17 OW-14 OW-13 OW-22 OW-21PN-2D PN-1D OW-20 OW-12 OW-11 OW-8 OW-10 P-7 P-9 AL39 AL36 GWA-9BR GWA-9D GWA-9S GWA-5BR S-3 SB-7 SW-2 NPDES OUTFALL 002 NPDES OUTFALL 001 CELL 1 CELL 2A CELL 2B OW-5P-1 OW-2 P-3 OW-4 OW-6 RAB ASH LANDFILL WASTE BOUNDARY BASED ON LINER LIMITS RAB ASH LANDFILL COMPLIANCE BOUNDARY RAB ASH LANDFILL WASTE BOUNDARY BASED LINER LIMITS IN THE S&ME DRAWINGS FOR THE RAB ASH LANDFILL PHASE I, PROJECT NUMBER 7235-14-011, DATED 06-16-2015. RETIRED ASH BASIN GENERALIZED GROUNDWATER FLOW DIRECTION GEOCHEMICAL TRANSECT WITH NAME AREA OF CONCENTRATION IN GROUNDWATER ABOVE NC2L (SEE NOTE 1.) EAST TRANSECT ACTIVE ASH BASIN- SOUTH TRANSECT AB-21SL*/AB-21AB-21D/ AB-21BR/ AB-21BRL AB-22S/ AB-22D/ AB-22BR/ AB-22BRL AB-10S/AB-10D ACTIVE ASH BASIN- NORTH TRANSECT AB-24S*/ AB-24D/ AB-24BR AB-26S / AB-26D GWA-3S / GWA-3BRA ACTIVE ASH BASIN-NORTH TRANSECT ACTIVE A S H B A S I N - S O U T H T R A N S E C T INACTIVE ASH BASIN TRANSECT AB-35BR AB-34D AB-32S/AB-32D GWA-5S/GWA-5D/GWA-5BRA COAL PILE/ASH STORAGE AREA TRANSECT AB-39S*/AB-39D GWA-6S/GWA-6DA/GWA-6BR GWA-7S/GWA-7D INACTIVE ASH BA S I N T R A N S E C T COAL PILE/ ASH STORAGE TRANSECT SOIL/WATER PAIR SAMPLE LOCATION (ft bgs): Identifies a soil sample taken for total metals or TOC analysis within a corresponding monitoring well screened interval. CONDUCTIVITY (ft/day): Hydraulic conductivity of the identified flow zone measured in a corresponding monitoring well. HYDROUS FERROUS OXIDE (mg/kg): Identifies a soil sample taken for HFO; note that the sample ID may not match the well ID at all locations. Bold text identifies samples taken within the corresponding screened interval. SORPTION COEFFICIENT (mL/g): Geomean of the batch sorption coefficient (Kd) for the indicated list of constituents. Bold text identifies samples taken within the corresponding screened interval. Color code identifies aquifer material. Nomenclature for Sample ID: Boring Location (sample interval in ft bgs). Note that while boring location may be given a suffix (S,SL, D, BR), the sample interval or depth of that the soil sample determines the flow zone. * = These sample intervals are within the soil portion of this soil/ash pore well rather than the ash itself. Sources Notes: Total metals analysis for solid phase soil samples taken from Appendix B, Table 4 of CSA Update, 2018. Hydraulic conductivity values taken from Table 6-12 of CSA Update 2018. HFO values are from the Soil Sorption Evaluation Report (Langley, W.G. & Oza, S., 31 Oct. 2015) and Appendix C of CSA Update, 2018. Batch sorption Kd values were taken from the linear isotherm (So = 0) values from the Addendum to Soil Sorption Evaluation (Langley, W.G. & Dongwook, K., 2 Feb. 2016) and Appendix C of CSA Update,2018. TABLE KEY POTENTIAL ALTERNATIVE SOURCE AREA OF IMPACT BASED ON GROUNDWATER CONCENTRATION OF CADMIUM, COBALT, NICKEL, SELENIUM, AND THALLIUM CCR-3DA CCR-3S GWA-7D GWA-7S GWA-6DA GWA-6S GWA-6BRGWA-6D CCR-4SA CCR-4DA COAL PILE OW-7 CCR-3D CCR-4D CCR-4S NOTES: 1.GENERALIZED AREAL EXTENT OF MIGRATION REPRESENTED BY NCAC 02L EXCEEDANCES OF MULTIPLE CONSTITUENTS (BORON AND ARSENIC) IN MULTIPLE FLOW ZONES. 2.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. GWA-24SA CCR-BG-1DA CCR-22D BG-1DA AB-22BR GWA-6BRA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\DE ALLEN CSAUP-FIGURE 11-159.dwg PIPING OBTAINED FROM DUKE ENERGY, STANTEC, AND SYNTERRA AOW INSPECTION. TRANSECT TITLE RED SAMPLE ID INDICATES THAT AN HFO SAMPLE IS PROPOSED TO BE COLLECTED FOR SOIL WITHIN THE SCREENED INTERVAL. DATA NOTES: NA=NOT ANALYZED IDNA=ISOTHERM DATA NOT AVAILABLE &< &<&< &<&<&< &< &<&< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&<&<&<&< &<&<&< &<&< &<&<&<&<&<&<&<&<&<&< &<&<&<&<&< &<&<&<&<&< &<&< &<&< &<&< &<&< &<&<&<&<&<&<&< &<&<&<&<&< &<&< &<&<&< &<&< &<&<&< &<&<&<&<&<&< &<&< &<&< &<&<&<&<&<&<&<&< &<&< &<&< &<&< &<&< &<&< &<&<&<&< &<&< &<&< &< &<&<&< &<&< &<&<&< &<&<&< &<&<&< &<&< &<&<&<&<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &<&< &<&<&< &<&< &<&< &<&< &<&< &< ") ") ") ") ") ") ") &<&< &< &< ") ") &< &< ACTIVEASH BASIN INACTIVEASHBASIN CATAW BA RIVER(LAKE WYLIE)DISCHARGE CANALSTRUCTURALFILL ASHSTORAGE ASHSTORAGE RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 STRUCTURALFILL EXPOSUREAREA 2 EXPOSUREAREA 4 EXPOSUREAREA 3 EXPOSUREAREA 1 AB-1R AB-2/D AB-4S/D/BR AB-5 AB-6A/R AB-9S/D AB-10S/D AB-11D AB-12S/D AB-13S/D AB-14D/BR AB-20S/D AB-21S/SL/D/BR/BRL AB-22S/D/BR/BRL AB-23S/BRU AB-24S/SL/D/BR AB-25S/SL/BR/BRU AB-26S/D AB-27S/D/BR AB-28S/D AB-29S/SL/DAB-30S/D AB-31S/D AB-32S/D AB-33S/D AB-34S/D AB-35S/D/BRAB-36S/D AB-37S/D AB-38S/D/BR AB-39S/D BG-1S/DA BG-2S/D/BRA2 BG-3S/D CCR-1S/DA CCR-2S/D CCR-3S/DA CCR-4SA/DA CCR-5S/D CCR-6S/D CCR-7S/D CCR-8S/D CCR-9S/D CCR-11S/DA CCR-14S/D CCR-16S/D CCR-17S/D CCR-18S/D CCR-20S/DCCR-21S/D CCR-22S/DA CCR-23S/D CCR-BG-1S/DA GWA-1S/D/BR GWA-2S/D GWA-3S/D/BRA GWA-4S/D/BR GWA-5S/D/BRA GWA-6S/DA/BRA GWA-7S/DGWA-8S/D GWA-9S/D/BR GWA-14S/DA GWA-15S/D GWA-16S/D GWA-17S/D GWA-18S/D GWA-19S/D GWA-21S/DA/BR GWA-22S/D GWA-23S/D GWA-26S/D GWA-24SA/D/BR PH ADJBLDG SW-5 SW-D1 SW-1 SW-2 SW-3 SW-7 SW-4 SW-6 SW-U1 BG-4S/D/BR CIF WELL PH WELLHIGHLAND PLCADMAN CTJOHN DOUGLAS DRD A N AMICHELLE C T S H A D Y C RE E K C T B O A T C L U B R D MICHAELDOMINICK DRWA RRE NDR LAKEHILL CTBELL POST RDBASIL DRTUCKER RDLA K E B R E E Z E L N ELLINGTON RD MITCHELL STH IG H L A N D W A Y 2651REESEWILSONRD EXD2798THE HOTHOLE RDSUNDERLAND RDWATERVIEW DR W O O D B E N D D R T A N G L E W O O D C O V E F A R M R D H E A T H E R G L E N L N OLD SPRING RD SHOREWOOD PLW I L D L I F E R D L A K E MI S T D R WIN G P OINT D R RIVER RUN EGRET RIDGER E E S E WIL S O N R D P L A N T A L L E N R D ARMSTRONG RDLO W ER A RM STRO NG RDS POINT RDC A NA L R D SOUTHPOI NT RDNOT ES:1. GENERALIZED AREAL E XTENT OF MIGRATION REPRESENTED BY NCAC 02LEXCEEDANCES OF MULTIPLE CONSTITUENTS (BORON AND ARSENIC) IN MULTIPLEFLOW ZONES. 2. GENERALIZED AREAL E XTENT OF MIGRATION REPRESENTED BY NCAC 02LEXCEEDANCES OF MULTIPLE CONSTITUENTS (B ERYLLIUM, NICKEL, SULFATE, ANDTHALLIUM) IN MULTIPLE FLOW ZONES . A SEPARATE ASSESSMENT IS PLANNED FORTHE COAL PIL E AREA. FOUR EXPOSURE AREAS HAVE BEEN DEVELOPED BY HDR TO EVALUATEECOLOGICAL EXPOSURE TO SURFACE WATER, SEDIMENT, SEDIMENT AND AREAS OFWETNESS (AOW ). THE EXPOSURE AREAS CONSIDER ECOLOGICAL HABITATS, NEARBYWATER BODIES, AND WET AREAS. NATU RAL RESOURCES T ECHNICAL REPORT (NRTR) PREPARED BY AMEC FOSTERWHEELER, INC., MAY 29, 2015. PROPERT Y BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGL E EARTH PRO ON OCTOBER 11, 2017.AERIAL WAS COL LECTED ON OCTOBER 8, 2016. DRAW ING HAS BEEN S ET WIT H A PROJECT ION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83).FIGURE 12-1HUMAN HEALTH ANDECOLOGICAL EXPOSURE AREASALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/25/2018 148 R IVER STRE ET, SUITE 220GREENVILLE, S OUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Du ke En erg y P ro g re ss.1026\0 0 GIS BA SE DATA\Alle n \M ap_Do cs\CS A_Supp leme nt_2\Fig12-01 - Human Health and Ecological Exposure Areas.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET &<MONI TORING WELL &<BACKG ROUND MON ITORING WELL ")WATER SAMPLE LOCATION EXPOSUR E AREA 1 EXPOSUR E AREA 2 EXPOSUR E AREA 3 EXPOSUR E AREA 4 AREA OF C ONCENTRATION IN GROUNDWATERABOVE NC2L (SEE NOTE 1) AREA OF C ONCENTRATION IN GROUNDWATERABOVE NC2L POTENTIALLY ATTRIBUTABLE TOTHE CO AL PI LE (SEE NOTE 2) ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLEN PLANTSITE BO UNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-1 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT ANTIMONY ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:1µg/L, PBTV:0.9µg/L) Deep (IMAC Std:1µg/L, PBTV:0.7µg/L) Bedrock (IMAC Std:1µg/L, PBTV:0.5µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-2 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT ANTIMONY ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:1µg/L, PBTV:0.9µg/L) Deep (IMAC Std:1µg/L, PBTV:0.7µg/L) Bedrock (IMAC Std:1µg/L, PBTV:0.5µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-3 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT ANTIMONY ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:1µg/L, PBTV:0.9µg/L) Deep (IMAC Std:1µg/L, PBTV:0.7µg/L) Bedrock (IMAC Std:1µg/L, PBTV:0.5µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-4 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT ANTIMONY ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:1µg/L, PBTV:0.9µg/L) Deep (IMAC Std:1µg/L, PBTV:0.7µg/L) Bedrock (IMAC Std:1µg/L, PBTV:0.5µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value AB-22BRL Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-5 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT ARSENIC ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:10µg/L, PBTV:0.42µg/L) Deep (2L Std:10µg/L, PBTV:1.4µg/L) Bedrock (2L Std:10µg/L, PBTV:0.4µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-6 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT ARSENIC ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:10µg/L, PBTV:0.42µg/L) Deep (2L Std:10µg/L, PBTV:1.4µg/L) Bedrock (2L Std:10µg/L, PBTV:0.4µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-7 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT ARSENIC ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:10µg/L, PBTV:0.42µg/L) Deep (2L Std:10µg/L, PBTV:1.4µg/L) Bedrock (2L Std:10µg/L, PBTV:0.4µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-8 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT ARSENIC ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:10µg/L, PBTV:0.42µg/L) Deep (2L Std:10µg/L, PBTV:1.4µg/L) Bedrock (2L Std:10µg/L, PBTV:0.4µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value AB-22BRL Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-9 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT BERYLLIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:4µg/L, PBTV:0.127µg/L) Deep (IMAC Std:4µg/L, PBTV:0.2µg/L) Bedrock (IMAC Std:4µg/L, PBTV:0.1µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-10 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT BERYLLIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:4µg/L, PBTV:0.127µg/L) Deep (IMAC Std:4µg/L, PBTV:0.2µg/L) Bedrock (IMAC Std:4µg/L, PBTV:0.1µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-11 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT BERYLLIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:4µg/L, PBTV:0.127µg/L) Deep (IMAC Std:4µg/L, PBTV:0.2µg/L) Bedrock (IMAC Std:4µg/L, PBTV:0.1µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-12 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT BERYLLIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:4µg/L, PBTV:0.127µg/L) Deep (IMAC Std:4µg/L, PBTV:0.2µg/L) Bedrock (IMAC Std:4µg/L, PBTV:0.1µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value AB-22BRL Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-13 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT BORON ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:700µg/L, PBTV:50µg/L) Deep (2L Std:700µg/L, PBTV:50µg/L) Bedrock (2L Std:700µg/L, PBTV:50µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. •Data presented includes data with pH > 8.5 S.U. and Turbidity > 10 NTU Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-14 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT BORON ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:700µg/L, PBTV:50µg/L) Deep (2L Std:700µg/L, PBTV:50µg/L) Bedrock (2L Std:700µg/L, PBTV:50µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. •Data presented includes data with pH > 8.5 S.U. and Turbidity > 10 NTU Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-15 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT BORON ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:700µg/L, PBTV:50µg/L) Deep (2L Std:700µg/L, PBTV:50µg/L) Bedrock (2L Std:700µg/L, PBTV:50µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. •Data presented includes data with pH > 8.5 S.U. and Turbidity > 10 NTU Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-16 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT BORON ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:700µg/L, PBTV:50µg/L) Deep (2L Std:700µg/L, PBTV:50µg/L) Bedrock (2L Std:700µg/L, PBTV:50µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. •Data presented includes data with pH > 8.5 S.U. and Turbidity > 10 NTU Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value AB-22BRL Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-17 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT CADMIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:2µg/L, PBTV:0.08µg/L) Deep (2L Std:2µg/L, PBTV:0.08µg/L) Bedrock (2L Std:2µg/L, PBTV:0.08µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-18 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT CADMIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:2µg/L, PBTV:0.08µg/L) Deep (2L Std:2µg/L, PBTV:0.08µg/L) Bedrock (2L Std:2µg/L, PBTV:0.08µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-19 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT CADMIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:2µg/L, PBTV:0.08µg/L) Deep (2L Std:2µg/L, PBTV:0.08µg/L) Bedrock (2L Std:2µg/L, PBTV:0.08µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-20 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT CADMIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:2µg/L, PBTV:0.08µg/L) Deep (2L Std:2µg/L, PBTV:0.08µg/L) Bedrock (2L Std:2µg/L, PBTV:0.08µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value AB-22BRL Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-21 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT CHROMIUM & CHROMIUM (VI) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:10µg/L, PBTV:6.93µg/L, 7.7µg/L) Deep (2L Std:10µg/L, PBTV:6.8µg/L, 1.2µg/L) Bedrock (2L Std:10µg/L, PBTV:5.6µg/L, 0.23µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard (Cr) Provisional Background Threshold Value (Cr) Chromium (VI) Provisional Background Threshold Value (Cr (VI)) Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-22 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT CHROMIUM & CHROMIUM (VI) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:10µg/L, PBTV:6.93µg/L, 7.7µg/L) Deep (2L Std:10µg/L, PBTV:6.8µg/L, 1.2µg/L) Bedrock (2L Std:10µg/L, PBTV:5.6µg/L, 0.23µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard (Cr) Provisional Background Threshold Value (Cr) Chromium (VI) Provisional Background Threshold Value (Cr (VI)) Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-23 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT CHROMIUM & CHROMIUM (VI) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:10µg/L, PBTV:6.93µg/L, 7.7µg/L) Deep (2L Std:10µg/L, PBTV:6.8µg/L, 1.2µg/L) Bedrock (2L Std:10µg/L, PBTV:5.6µg/L, 0.23µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Provisional Background Threshold Value (Cr (VI)) Chromium (VI) Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard (Cr) Provisional Background Threshold Value (Cr) Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-24 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT CHROMIUM & CHROMIUM (VI) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:10µg/L, PBTV:6.93µg/L, 7.7µg/L) Deep (2L Std:10µg/L, PBTV:6.8µg/L, 1.2µg/L) Bedrock (2L Std:10µg/L, PBTV:5.6µg/L, 0.23µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Provisional Background Threshold Value (Cr (VI)) Chromium (VI) Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard (Cr) Provisional Background Threshold Value (Cr) Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: DECEMBER 2017 FIGURE 14-25 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT COBALT ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:1µg/L, PBTV:4.3µg/L) Deep (IMAC Std:1µg/L, PBTV:0.5µg/L) Bedrock (IMAC Std:1µg/L, PBTV:0.27µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: DECEMBER 2017 FIGURE 14-26 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT COBALT ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:1µg/L, PBTV:4.3µg/L) Deep (IMAC Std:1µg/L, PBTV:0.5µg/L) Bedrock (IMAC Std:1µg/L, PBTV:0.27µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: DECEMBER 2017 FIGURE 14-27 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT COBALT ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:1µg/L, PBTV:4.3µg/L) Deep (IMAC Std:1µg/L, PBTV:0.5µg/L) Bedrock (IMAC Std:1µg/L, PBTV:0.27µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: DECEMBER 2017 FIGURE 14-28 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT COBALT ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:1µg/L, PBTV:4.3µg/L) Deep (IMAC Std:1µg/L, PBTV:0.5µg/L) Bedrock (IMAC Std:1µg/L, PBTV:0.27µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value AB-22BRL Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-29 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT IRON ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:300µg/L, PBTV:835µg/L) Deep (2L Std:300µg/L, PBTV:555µg/L) Bedrock (2L Std:300µg/L, PBTV:284µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-30 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT IRON ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:300µg/L, PBTV:835µg/L) Deep (2L Std:300µg/L, PBTV:555µg/L) Bedrock (2L Std:300µg/L, PBTV:284µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-31 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT IRON ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:300µg/L, PBTV:835µg/L) Deep (2L Std:300µg/L, PBTV:555µg/L) Bedrock (2L Std:300µg/L, PBTV:284µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-32 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT IRON ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:300µg/L, PBTV:835µg/L) Deep (2L Std:300µg/L, PBTV:555µg/L) Bedrock (2L Std:300µg/L, PBTV:284µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value AB-22BRL Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-33 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT MANGANESE ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:50µg/L, PBTV:578µg/L) Deep (2L Std:50µg/L, PBTV:60.4µg/L) Bedrock (2L Std:50µg/L, PBTV:39.1µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-34 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT MANGANESE ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:50µg/L, PBTV:578µg/L) Deep (2L Std:50µg/L, PBTV:60.4µg/L) Bedrock (2L Std:50µg/L, PBTV:39.1µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-35 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT MANGANESE ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:50µg/L, PBTV:578µg/L) Deep (2L Std:50µg/L, PBTV:60.4µg/L) Bedrock (2L Std:50µg/L, PBTV:39.1µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-36 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT MANGANESE ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:50µg/L, PBTV:578µg/L) Deep (2L Std:50µg/L, PBTV:60.4µg/L) Bedrock (2L Std:50µg/L, PBTV:39.1µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value AB-22BRL Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-37 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT MOLYBDENUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:NE, PBTV:0.85µg/L) Deep (2L Std:NE, PBTV:30.2µg/L) Bedrock (2L Std:NE, PBTV:4.7µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-38 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT MOLYBDENUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:NE, PBTV:0.85µg/L) Deep (2L Std:NE, PBTV:30.2µg/L) Bedrock (2L Std:NE, PBTV:4.7µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-39 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT MOLYBDENUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:NE, PBTV:0.85µg/L) Deep (2L Std:NE, PBTV:30.2µg/L) Bedrock (2L Std:NE, PBTV:4.7µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-40 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT MOLYBDENUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:NE, PBTV:0.85µg/L) Deep (2L Std:NE, PBTV:30.2µg/L) Bedrock (2L Std:NE, PBTV:4.7µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value AB-22BRL Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-41 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT NICKEL ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:100µg/L, PBTV:4.02µg/L) Deep (2L Std:100µg/L, PBTV:8.1µg/L) Bedrock (2L Std:100µg/L, PBTV:3.4µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-42 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT NICKEL ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:100µg/L, PBTV:4.02µg/L) Deep (2L Std:100µg/L, PBTV:8.1µg/L) Bedrock (2L Std:100µg/L, PBTV:3.4µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-43 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT NICKEL ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:100µg/L, PBTV:4.02µg/L) Deep (2L Std:100µg/L, PBTV:8.1µg/L) Bedrock (2L Std:100µg/L, PBTV:3.4µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-44 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT NICKEL ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:100µg/L, PBTV:4.02µg/L) Deep (2L Std:100µg/L, PBTV:8.1µg/L) Bedrock (2L Std:100µg/L, PBTV:3.4µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value AB-22BRL Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-45 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT pH ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:6.5-8.5 S.U., PBTV:5.2-7.5 S.U.) Deep (2L Std:6.5-8.5 S.U., PBTV:6.7-8.4 S.U.) Bedrock (2L Std:6.5-8.5 S.U., PBTV:7.5-7.8 S.U.) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-46 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT pH ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:6.5-8.5S.U., PBTV:5.2-7.5S.U.) Deep (2L Std:6.5-8.5S.U., PBTV:6.7-8.4S.U.) Bedrock (2L Std:6.5-8.5S.U., PBTV:7.5-7.8S.U.) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-47 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT pH ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:6.5-8.5S.U., PBTV:5.2-7.5S.U.) Deep (2L Std:6.5-8.5S.U., PBTV:6.7-8.4S.U.) Bedrock (2L Std:6.5-8.5S.U., PBTV:7.5-7.8S.U.) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-48 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT pH ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:6.5-8.5S.U., PBTV:5.2-7.5S.U.) Deep (2L Std:6.5-8.5S.U., PBTV:6.7-8.4S.U.) Bedrock (2L Std:6.5-8.5S.U., PBTV:7.5-7.8S.U.) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value AB-22BRL Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-49 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT RADIUM (TOTAL) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (MCL Std:5pCi/L, PBTV:1.39pCi/L) Deep (MCL Std:5pCi/L, PBTV:0.613pCi/L) Bedrock (MCL Std:5pCi/L, PBTV:1.1pCi/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water MCL Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-50 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT RADIUM (TOTAL) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (MCL Std:5pCi/L, PBTV:1.39pCi/L) Deep (MCL Std:5pCi/L, PBTV:0.613pCi/L) Bedrock (MCL Std:5pCi/L, PBTV:1.1pCi/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water MCL Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-51 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT RADIUM (TOTAL) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (MCL Std:5pCi/L, PBTV:1.39pCi/L) Deep (MCL Std:5pCi/L, PBTV:0.613pCi/L) Bedrock (MCL Std:5pCi/L, PBTV:1.1pCi/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water MCL Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-52 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT RADIUM (TOTAL) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (MCL Std:5pCi/L, PBTV:1.39pCi/L) Deep (MCL Std:5pCi/L, PBTV:0.613pCi/L) Bedrock (MCL Std:5pCi/L, PBTV:1.1pCi/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water MCL Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-53 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT SELENIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:20µg/L, PBTV:0.5µg/L) Deep (2L Std:20µg/L, PBTV:0.5µg/L) Bedrock (2L Std:20µg/L, PBTV:0.5µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-54 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT SELENIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:20µg/L, PBTV:0.5µg/L) Deep (2L Std:20µg/L, PBTV:0.5µg/L) Bedrock (2L Std:20µg/L, PBTV:0.5µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-55 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT SELENIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:20µg/L, PBTV:0.5µg/L) Deep (2L Std:20µg/L, PBTV:0.5µg/L) Bedrock (2L Std:20µg/L, PBTV:0.5µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-56 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT SELENIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:20µg/L, PBTV:0.5µg/L) Deep (2L Std:20µg/L, PBTV:0.5µg/L) Bedrock (2L Std:20µg/L, PBTV:0.5µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value AB-22BRL Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-57 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT STRONTIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:NE, PBTV:286µg/L) Deep (2L Std:NE, PBTV:200µg/L) Bedrock (2L Std:NE, PBTV:106µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-58 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT STRONTIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:NE, PBTV:286µg/L) Deep (2L Std:NE, PBTV:200µg/L) Bedrock (2L Std:NE, PBTV:106µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-59 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT STRONTIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:NE, PBTV:286µg/L) Deep (2L Std:NE, PBTV:200µg/L) Bedrock (2L Std:NE, PBTV:106µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-60 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT STRONTIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:NE, PBTV:286µg/L) Deep (2L Std:NE, PBTV:200µg/L) Bedrock (2L Std:NE, PBTV:106µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value AB-22BRL Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C, SUTTELL DATE: JANUARY 2018 FIGURE 14-61 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT SULFATE ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:250mg/L, PBTV:3.64mg/L) Deep (2L Std:250mg/L, PBTV:16.2mg/L) Bedrock (2L Std:250mg/L, PBTV:2.9mg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. •Data presented includes data with pH > 8.5 S.U. and Turbidity > 10 NTU Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C, SUTTELL DATE: JANUARY 2018 FIGURE 14-62 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT SULFATE ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:250mg/L, PBTV:3.64mg/L) Deep (2L Std:250mg/L, PBTV:16.2mg/L) Bedrock (2L Std:250mg/L, PBTV:2.9mg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. •Data presented includes data with pH > 8.5 S.U. and Turbidity > 10 NTU Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C, SUTTELL DATE: JANUARY 2018 FIGURE 14-63 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT SULFATE ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:250mg/L, PBTV:3.64mg/L) Deep (2L Std:250mg/L, PBTV:16.2mg/L) Bedrock (2L Std:250mg/L, PBTV:2.9mg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. •Data presented includes data with pH > 8.5 S.U. and Turbidity > 10 NTU Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C, SUTTELL DATE: JANUARY 2018 FIGURE 14-64 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT SULFATE ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:250mg/L, PBTV:3.64mg/L) Deep (2L Std:250mg/L, PBTV:16.2mg/L) Bedrock (2L Std:250mg/L, PBTV:2.9mg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. •Data presented includes data with pH > 8.5 S.U. and Turbidity > 10 NTU Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value AB-22BRL Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-65 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT THALLIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:0.2µg/L, PBTV:0.1µg/L) Deep (IMAC Std:0.2µg/L, PBTV:0.1µg/L) Bedrock (IMAC Std:0.2µg/L, PBTV:0.1µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-66 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT THALLIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:0.2µg/L, PBTV:0.1µg/L) Deep (IMAC Std:0.2µg/L, PBTV:0.1µg/L) Bedrock (IMAC Std:0.2µg/L, PBTV:0.1µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-67 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT THALLIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:0.2µg/L, PBTV:0.1µg/L) Deep (IMAC Std:0.2µg/L, PBTV:0.1µg/L) Bedrock (IMAC Std:0.2µg/L, PBTV:0.1µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-68 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT THALLIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:0.2µg/L, PBTV:0.1µg/L) Deep (IMAC Std:0.2µg/L, PBTV:0.1µg/L) Bedrock (IMAC Std:0.2µg/L, PBTV:0.1µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value AB-22BRL Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-69 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT TOTAL DISSOLVED SOLIDS ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:500mg/L, PBTV:181mg/L) Deep (2L Std:500mg/L, PBTV:126mg/L) Bedrock (2L Std:500mg/L, PBTV:147mg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-70 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT TOTAL DISSOLVED SOLIDS ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:500mg/L, PBTV:181mg/L) Deep (2L Std:500mg/L, PBTV:126mg/L) Bedrock (2L Std:500mg/L, PBTV:147mg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-71 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT TOTAL DISSOLVED SOLIDS ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:500mg/L, PBTV:181mg/L) Deep (2L Std:500mg/L, PBTV:126mg/L) Bedrock (2L Std:500mg/L, PBTV:147mg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-72 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT TOTAL DISSOLVED SOLIDS ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (2L Std:500mg/L, PBTV:181mg/L) Deep (2L Std:500mg/L, PBTV:126mg/L) Bedrock (2L Std:500mg/L, PBTV:147mg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available AB-22BRL 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-73 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT URANIUM (TOTAL) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (MCL Std:0.03µg/mL, PBTV:0.002µg/mL) Deep (MCL Std:0.03µg/mL, PBTV:0.0005µg/mL) Bedrock (MCL Std:0.03µg/mL, PBTV:0.0004µg/mL) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water MCL Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-74 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT URANIUM (TOTAL) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (MCL Std:0.03µg/mL, PBTV:0.002µg/mL) Deep (MCL Std:0.03µg/mL, PBTV:0.0005µg/mL) Bedrock (MCL Std:0.03µg/mL, PBTV:0.0004µg/mL) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water MCL Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-75 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT URANIUM (TOTAL) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (MCL Std:0.03µg/mL, PBTV:0.002µg/mL) Deep (MCL Std:0.03µg/mL, PBTV:0.0005µg/mL) Bedrock (MCL Std:0.03µg/mL, PBTV:0.0004µg/mL) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water MCL Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-76 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT URANIUM (TOTAL) ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (MCL Std:0.03µg/mL, PBTV:0.002µg/mL) Deep (MCL Std:0.03µg/mL, PBTV:0.0005µg/mL) Bedrock (MCL Std:0.03µg/mL, PBTV:0.0004µg/mL) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water MCL Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-77 TIME VERSUS CONCENTRATION COAL PILE/ASH STORAGE AREA TRANSECT VANADIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:0.3µg/L, PBTV:5.3µg/L) Deep (IMAC Std:0.3µg/L, PBTV:9.6µg/L) Bedrock (IMAC Std:0.3µg/L, PBTV:10.8µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-78 TIME VERSUS CONCENTRATION INACTIVE ASH BASIN TRANSECT VANADIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:0.3µg/L, PBTV:5.3µg/L) Deep (IMAC Std:0.3µg/L, PBTV:9.6µg/L) Bedrock (IMAC Std:0.3µg/L, PBTV:10.8µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-79 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – NORTH TRANSECT VANADIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:0.3µg/L, PBTV:5.3µg/L) Deep (IMAC Std:0.3µg/L, PBTV:9.6µg/L) Bedrock (IMAC Std:0.3µg/L, PBTV:10.8µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available Information Not Available 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PREPARED BY: L. DRAGO CHECKED BY: C. SUTTELL PROJECT MANAGER: C. SUTTELL DATE: JANUARY 2018 FIGURE 14-80 TIME VERSUS CONCENTRATION ACTIVE ASH BASIN – SOUTH TRANSECT VANADIUM ALLEN STEAM STATION DUKE ENERGY CAROLINAS, LLC BELMONT, NORTH CAROLINA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Figures\Figure 14-1 to 14-80 Time Series Shallow (IMAC Std:0.3µg/L, PBTV:5.3µg/L) Deep (IMAC Std:0.3µg/L, PBTV:9.6µg/L) Bedrock (IMAC Std:0.3µg/L, PBTV:10.8µg/L) Notes: •Concentration scale may vary due to well specific concentration. Scales are equal where possible for ease of interpretation. •Data presented may include lab-qualified results. Refer to analytical data table notes for qualifier definitions. Non-detect analytical results are plotted at the corresponding reporting limit. Source Downgradient - Distance + Shallow Deep Bedrock Ash Pore Water IMAC 15 NCAC 2L Standard Provisional Background Threshold Value Information Not Available Information Not Available AB-22BRL &< &<&< &<&<&< &< &<&< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&<&< &<&<&< &< &<&<&<&<&<&<&< &<&<&< &< &<&<&<&< &< &<&< &<&< &<&< &<&<&<&<&<&< &<&<&<&<&< &< &< &<&<&< &<&< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&<&< &<&<&< &<&<&<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&< !( !( !( !( !( !( !( !( !( !( !( !(!( !( !( !( !( ") ") ") ") ") ") ") !( !( &< &< &< ") ") ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-1RND AB-20.29 j AB-2DND AB-4BR0.2 j AB-4DND AB-4SND AB-5ND AB-6AND AB-6R0.12 j AB-9DND AB-9SND AB-10DNDAB-10S0.1 j AB-11DND AB-12DND AB-12SND AB-13DND AB-13SND AB-14BR0.27 j AB-21S0.43 j AB-21SL1.3 AB-22BR0.15 j AB-22D0.26 j AB-24BRND AB-24S0.93 AB-25SL0.7 AB-26S0.27 j AB-27BR0.19 jAB-28S0.37 j AB-30DND AB-30S0.55 AB-31SND AB-32D0.22 j AB-32SND AB-33D1.6 AB-33SND AB-34DND AB-34SND AB-35BR0.34 j AB-35S0.27 j AB-36DND AB-37D0.17 j AB-37SND AB-38BR0.12 j AB-38DND AB-38S0.2 j AB-39SND BG-1S0.12 j BG-2DNDBG-2S0.48 j BG-3DND BG-3S0.43 j BG-4BRND BG-4S0.16 j GWA-1BRNDGWA-1DND GWA-1SND GWA-2DND GWA-2SND GWA-3D0.24 j GWA-3SND GWA-4DND GWA-4SND GWA-5SND GWA-6BRND GWA-6DA0.89 GWA-6SND GWA-7D0.24 j GWA-7SND GWA-8DND GWA-8S0.14 j GWA-9BR0.76 GWA-9D0.13 j GWA-9SND GWA-14SND GWA-15DND GWA-15SND GWA-16DND GWA-16SND GWA-17D0.13 j GWA-18DND GWA-19S0.38 j GWA-21SND GWA-22S0.14 j GWA-23S0.4 j GWA-24DND GWA-26S0.17 j ANSW -15ND S-1ND S-2ND S-3ND S-4ND S-6ND S-8ND S-8BND S-10ND SW -10.3 j SW -20.33 j SW -30.31 j SW -40.3 j SW -5ND SW -60.34 j S-9ND AB-8NS AB-25S7.6 AB-27D0.29 j AB-27SND ANWW-40.41 j SW -70.33 j AB-14DND AB-20S0.74 AB-22S0.33 j AB-29DND AB-29SND AB-36SND AB-39DND GWA-5D0.11 j GWA-17S0.11 j GWA-18SND GWA-22D0.14 j GWA-26D0.16 j AB-20DND AB-21BRL0.14 j AB-23S0.28 j AB-24SL0.5 j AB-26D0.59 BG-1DA0.15 j BG-2BRA-20.27 j BG-4D0.17 j GWA-4BRND GWA-5BRA0.2 j GWA-14DA0.96 GWA-21BR0.43 j GWA-21DA0.24 j GWA-24BR0.32 j ANIN0010.24 j ANSP005ND ANTD001ND ANWW-10.4 j ANWW-30.23 j S-5ND S-7ND ANWW-20.27 jPH ADJBLDG NS AB-1NS SW -D10.33 j SW -U10.42 j FIGURE 14-81GROUNDWATER CONCENTRATIONTREND ANALYSIS -ANTIMONY IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:ANTIMONY CONCENTRATION IS MEASURED IN μg/L AND THE IMACSTANDARD IS 1 μg/L. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). &< &<&< &<&<&< &< &<&< &< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&<&< &<&<&< &< &<&<&<&<&<&<&< &<&<&< &< &<&<&<&< &< &<&< &<&< &<&< &<&<&<&<&<&< &<&<&<&<&< &< &< &<&<&< &<&< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&<&< &<&<&< &<&<&<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&< &< !( !( !( !( !( !( !( !( !( !( !( !(!( !( !( !( !( ") ") ") ") ") ") ") !( !( &< ") ") ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-1R0.11 AB-20.079 j,B AB-2D0.12 B AB-4BR0.24 AB-4D0.074 j AB-4S0.23 AB-50.081 j AB-6A0.13 AB-6R0.12 AB-8ND AB-9D0.075 j AB-9S0.095 j AB-10D0.12AB-10S0.094 j AB-11D0.061 j AB-12D0.12 AB-12SND AB-13D0.11 AB-13S0.052 j AB-14BR1.4 AB-21S634AB-21SL589 AB-22BR0.36 B AB-22D0.24 B AB-24BR0.26 AB-24S85.2 AB-25SL807 AB-26S0.15 B AB-27BR0.3AB-28S31.3 AB-30D0.21 AB-30S288 AB-31S0.077 j AB-32D0.26 AB-32S0.76 AB-33D0.3 AB-33S0.12 AB-34D0.19 AB-34S0.45 AB-35BR0.59 AB-35S70.3 AB-36D0.32 AB-37D0.27 AB-37S0.42 AB-38BR0.28 AB-38D0.22 B AB-38S303 AB-39S2.6 BG-1S0.1 BG-2D0.24BG-2S0.52 BG-3D0.14 BG-3S0.13 BG-4BR0.31 BG-4S0.22 GWA-1BR0.46GWA-1D0.29 GWA-1S0.1 GWA-2D0.087 j GWA-2S0.085 j GWA-3D0.31 GWA-3S0.11 GWA-4D0.084 j GWA-4S0.21 GWA-5S0.23 GWA-6BRND GWA-6DA1.1 GWA-6S137 D3 GWA-7D0.33 B GWA-7S1.7 GWA-8D0.18 GWA-8S0.13 GWA-9BR0.44 B GWA-9D0.2 B GWA-9S0.88 GWA-14SND GWA-15D0.14 GWA-15S0.18 GWA-16D0.16 GWA-16S0.43 GWA-17D1.6 GWA-18D0.5 GWA-19S0.31 B GWA-21SND GWA-22S0.36 GWA-23S0.11 GWA-24D0.24 GWA-26S0.27 ANSW -155 ANWW-40.55 S-20.12 S-3ND S-4ND S-8ND S-8BND S-10ND SW -15.1 SW -25.4 SW -30.8 SW -40.91 SW -50.75 SW -60.52 S-9ND AB-25S155 AB-27D9.7 AB-27S248 S-10.98 SW -70.64 AB-14D0.096 j,B AB-20S50.5 AB-22S0.18 B AB-29D0.19 AB-29S80 AB-36S18.9 AB-39D0.19 GWA-5D0.42 GWA-17S0.22 GWA-18S0.55 GWA-22D0.2 GWA-26D0.66 S-6ND AB-20D0.73 AB-21BRL1.8 AB-23S1030 AB-24SL583 AB-26D0.28 BG-1DA0.27 BG-2BRA-20.6 BG-4D0.98 GWA-4BR0.36 GWA-5BRA1.8 GWA-14DA0.63 j+ GWA-21BR1.6 GWA-21DA0.2 GWA-24BR0.66 PH ADJBLDG ND ANIN0010.5 j ANSP005ND ANTD001ND ANWW-10.59 ANWW-30.63 S-50.066 j S-70.063 j ANWW-23.7 AB-1NS SW -D10.81 SW -U10.53 FIGURE 14-82GROUNDWATER CONCENTRATIONTREND ANALYSIS -ARSENIC IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:ARS ENIC CONCENTRATION IS MEASURED IN μg/L AND THE NCAC 02LSTANDARD IS 10 μg/L. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). &< &<&< &<&<&< &< &<&< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&<&< &<&<&< &< &<&<&<&<&<&<&< &<&<&< &< &<&<&<&< &< &<&< &<&< &<&< &<&<&<&<&<&< &<&<&<&<&< &< &< &<&<&< &<&< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&<&< &<&<&< &<&<&<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&< !( !( !( !( !( !( !( !( !( !( !( ") ") ") ") ") ") ") !( !( !( !( !( !( !( !( &< &< &< ") ") ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-1R0.012 j AB-20.12 AB-2D0.019 j AB-4BR0.018 j AB-4D0.032 j AB-4S0.051 j AB-50.063 j AB-6A0.017 j AB-6R0.011 j AB-9DND AB-9SND AB-10DNDAB-10S0.026 j AB-11DND AB-12D0.01 j AB-12SND AB-13D0.022 j AB-13S0.071 j AB-14BRND AB-14D0.16 AB-20S0.026 j AB-21S0.041 j AB-21SL0.051 j AB-22D0.014 j AB-22S0.083 j AB-24BRND AB-24S0.019 j,B AB-25S0.017 j AB-25SL0.016 j AB-26S0.031 j AB-27BR0.014 j AB-27D0.03 j AB-27SND AB-28S0.054 j,B AB-29DNDAB-30DND AB-30S0.022 j,B AB-31S0.027 j AB-32DND AB-32SND AB-33DND AB-33S0.054 j AB-34DND AB-34SND AB-35BRND AB-35S0.027 j AB-36D0.026 j AB-36S0.062 j AB-37D0.011 j AB-37SND AB-38BRND AB-38D0.012 j AB-38S0.032 j AB-39D0.14AB-39S0.01 j BG-1S0.026 j BG-2D0.011 jBG-2S0.026 j BG-3DND BG-3SND BG-4BR0.016 jBG-4S0.016 j GWA-1BR0.029 j GWA-1D0.026 j GWA-1S0.09 j GWA-2DND GWA-2S0.088 j GWA-3DND GWA-3S0.02 j GWA-4DND GWA-4S0.04 j GWA-5DND GWA-5S0.059 j GWA-6BR0.1 j GWA-6DA0.013 j GWA-6S38.6 D3 GWA-7D0.038 j GWA-7S1.1 GWA-8DND GWA-8S0.073 j GWA-9BRND GWA-9D0.016 j GWA-9S0.11 GWA-14S0.17 GWA-15DND GWA-15SND GWA-16DND GWA-16S0.014 j GWA-17D0.038 jGWA-17S0.018 j GWA-18DND GWA-18SND GWA-19S0.05 j GWA-21S0.15 GWA-22DND GWA-23S0.05 j GWA-24DND GWA-26DND GWA-26S0.015 j ANSW -150.011 j ANWW-40.024 j S-10.094 j S-20.056 j SW -20.055 j SW -30.022 j SW -40.94 SW -6ND SW -70.017 j,B S-9ND S-3NS S-4NS S-8NS S-8BNS S-10NS AB-22BR0.012 j GWA-22S0.092 j SW -51.8 AB-29S0.031 j,B SW -10.026 j AB-20DND AB-21BRL0.01 j AB-23SND AB-24SLND AB-26DND BG-1DA0.014 j BG-2BRA-20.023 j BG-4D0.018 j GWA-4BR0.037 j GWA-5BRA0.033 j GWA-14DA0.019 j GWA-21BR0.012 j GWA-21DA0.013 j GWA-24BRND ANIN001ND ANSP005ND ANTD001ND ANWW-10.037 j ANWW-3ND S-5ND S-7ND ANWW-2ND S-6NS AB-8NS PH ADJBLDG NS AB-1NS SW -D10.013 j,B SW -U1<0.1 FIGURE 14-83GROUNDWATER CONCENTRATIONTREND ANALYSIS -BERYLLIUM IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:BERYLLIUM CONCENTRATION IS MEASURED IN μg/L AND THE IMACSTANDARD IS 4 μg/L. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). &< &<&< &<&<&< &< &<&< &< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&<&< &<&<&< &< &<&<&<&<&<&<&< &<&<&< &< &<&<&<&< &< &<&< &<&< &<&< &<&<&<&<&<&< &<&<&<&<&< &< &< &<&<&< &<&< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&<&< &<&<&< &<&<&<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&< &< !( !( !( !( !( !( !( !( !( !( !( !(!( !( !( !( !( ") ") ") ") ") ") ") !( !( &< ") ") ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-1RND AB-2ND AB-2DND AB-4BRND AB-4DND AB-4S38.9 j AB-5ND AB-6AND AB-6RND AB-8496 AB-9D538 AB-9S701 AB-10DNDAB-10S29.1 j AB-11DND AB-12DND AB-12SND AB-13D26.9 j AB-13S26.6 j AB-14BRND AB-14D163 AB-21S3280 M1 AB-21SL6950 AB-22D1540 AB-22SND AB-24BRND AB-24S294 AB-25SL1280 AB-27S516 AB-28S869 AB-29D322AB-30DND AB-30S881 AB-31S1930 AB-32D455 AB-32SND AB-33D190 AB-33S778 AB-34DND AB-34S305 AB-35BRND AB-35S926 AB-36DNDAB-36S87.8 AB-37DND AB-37SND AB-38BRND AB-38DND AB-39D84.6AB-39S135 BG-1SND BG-2DNDBG-2SND BG-3DND BG-3SND BG-4BRND BG-4SND GWA-1BRND GWA-1D37.6 j GWA-1SND GWA-2DND GWA-2SND GWA-3S363 GWA-4D664 GWA-4S2180 GWA-5D606 GWA-5SND GWA-6BRNDGWA-6SND GWA-7DND GWA-7SND GWA-8DND GWA-8SND GWA-9BRND GWA-9DND GWA-9S32.5 j GWA-14SND GWA-15DND GWA-15S28.4 j GWA-16DND GWA-16SND GWA-17DNDGWA-17SND GWA-18DND GWA-18SND GWA-19SND GWA-21SND GWA-22DND GWA-22SND GWA-23SND GWA-24DND GWA-26DND GWA-26SND ANWW-457.4 S-1ND S-61150 SW -355.6 SW -4107 SW -660.3 AB-26S1100 AB-27BR130 AB-38S179 S-2818 S-3841 S-4923 S-8423 S-8B1330 S-10887 SW -7120 AB-20S2430 AB-22BR1550 AB-25S1390 AB-27D387 AB-29S614 GWA-3D94.2 GWA-6DA36.7 j ANSW -15500 SW -1921 SW -21030SW-51140 S-91160 AB-20DND AB-21BRL26.4 j AB-23S560 AB-24SL606 AB-26D276 BG-1DAND BG-2BRA-2ND BG-4DND GWA-4BR388 GWA-5BRA923 GWA-14DAND GWA-21BRND GWA-21DAND GWA-24BRND PH ADJBLDG ND ANIN00155 ANSP005370 ANTD0011200 ANWW-155.5 ANWW-359 S-51000 S-7780 ANWW-21900 AB-1NS SW -D1383 SW -U160.5 FIGURE 14-84GROUNDWATER CONCENTRATIONTREND ANALYSIS -BORON IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:BORON CONCENTRATION IS MEASURED IN μg/L AND THE NCAC 02LSTANDARD IS 700 μg/L. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). &< &<&< &<&<&< &< &<&< &< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&<&< &<&<&< &< &<&<&<&<&<&<&< &<&<&< &< &<&<&<&< &< &<&< &<&< &<&< &<&<&<&<&<&< &<&<&<&<&< &< &< &<&<&< &<&< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&<&< &<&<&< &<&<&<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&< &< !( !( !( !( !( !( !( !( !( !( !( !(!( !( !( !( !( ") ") ") ") ") ") ") !( !( &< ") ") ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-1RND AB-2ND AB-2DND AB-4DND AB-4SND AB-5ND AB-6AND AB-6RND AB-8ND AB-9DND AB-9SND AB-10DNDAB-10SND AB-11DND AB-12DND AB-12SND AB-13DND AB-13SND AB-14BR0.12 AB-14DND AB-20SND AB-21SND AB-22BRND AB-22DNDAB-22SND AB-24BRND AB-24SND AB-25SND AB-25SLND AB-26SND AB-27BRND AB-27DND AB-27SND AB-28SND AB-29DNDAB-30DND AB-30SND AB-32DND AB-32SND AB-33DND AB-33S0.05 j AB-34DND AB-34SND AB-35BRND AB-35SND AB-36DNDAB-36SND AB-37DND AB-37SND AB-38BRND AB-38DND AB-38SND AB-39D0.087AB-39SND BG-1SND BG-2DNDBG-2SND BG-3DND BG-3SND BG-4BRND BG-4SND GWA-1BRNDGWA-1DND GWA-1SND GWA-2DND GWA-2SND GWA-3DND GWA-3SND GWA-4DND GWA-4S0.075 j GWA-5DND GWA-5S0.18 GWA-6BRND GWA-6DAND GWA-7D0.28 GWA-7S0.25 GWA-8DND GWA-8S0.091 GWA-9BR0.14 GWA-9DND GWA-9S0.052 j GWA-14SND GWA-15DND GWA-15SND GWA-16DND GWA-16SND GWA-17DNDGWA-17SND GWA-18DND GWA-18SND GWA-19S0.055 j GWA-21SND GWA-22D0.067 j GWA-22S0.17 GWA-23SND GWA-24DND GWA-26DND GWA-26SND ANSW -15ND ANTD001ND ANWW-1ND ANWW-3ND ANWW-4ND S-1ND S-2ND S-3ND S-4ND S-6ND S-8ND S-8BND S-10ND SW -1ND SW -3ND SW -50.19 SW -6ND SW -7ND S-9ND AB-4BR0.53 SW-40.55 AB-21SL0.22 AB-29SND AB-31S0.11 GWA-6S9.3 D3 SW -20.058 j AB-20DND AB-21BRLND AB-23SND AB-24SLND AB-26DND BG-1DAND BG-2BRA-2ND BG-4DND GWA-4BRND GWA-5BRAND GWA-14DAND GWA-21BRND GWA-21DAND GWA-24BRND PH ADJBLDG ND ANIN001ND ANSP005ND S-50.13 S-7ND ANWW-20.067 j AB-1NS SW -D1<0.08 SW -U1<0.08 FIGURE 14-85GROUNDWATER CONCENTRATIONTREND ANALYSIS -CADMIUM IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:CAD MIU M CONCENTRATION IS MEASURED IN μg/L AND THE NCAC02L STANDARD IS 2 μg/L. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). &< &<&< &<&<&< &< &<&< &<&< &<&< &< &< &<&< &<&< &<&< &<&<&< &<&<&< &<&<&<&<&<&<&< &<&<&< &< &<&<&<&< &< &<&< &<&< &<&< &<&<&<&<&<&< &<&<&<&<&< &< &< &<&<&< &<&< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&<&< &<&<&< &<&<&<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&< !( !( !( !( !( !( !( !( !( !( ") ") ") ") ") ") ") !( !( !( !( !( !( !( !( !( &< &< &< ") ") ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-1R4 AB-20.2 AB-2D2.3 AB-4BR0.65 AB-51.5 AB-6R12.3 AB-9D0.21 AB-9S0.052 j,D3 AB-10D2.4 AB-10S0.49 AB-12D0.45 AB-13D1.1 AB-13S0.62 AB-20S0.031 AB-21S0.41 AB-21SL0.041 j,D3 AB-22BR0.054 AB-22D0.085AB-22SND AB-24BRND AB-24SND AB-25SND AB-25SLND AB-27BR0.015 j AB-27D0.29 AB-27S0.53 AB-28SND AB-29D0.56AB-30D0.35 AB-30SND AB-31S0.26 AB-32S1.1 AB-33SND AB-34D0.41 AB-34SND AB-35SND AB-36D0.081AB-36S0.032 AB-37D0.15 AB-37S0.36 AB-38BR0.012 j AB-38D0.029 AB-38S0.057 j,D3 AB-39D0.062AB-39SND BG-1S0.16 BG-2D1BG-2S1.3 BG-3D0.27 BG-3S0.28 BG-4BR0.18 BG-4S0.22 GWA-1BR2.6GWA-1S0.74 GWA-2D1.5 GWA-2SND GWA-3D0.29 GWA-3SND GWA-4DND GWA-4S0.016 j GWA-5D0.038 GWA-5S0.029 GWA-6DA0.064 j,D* GWA-6S3.1 GWA-7D6.2 GWA-7S7 GWA-8D0.46 GWA-8S4.2 GWA-9D0.84 GWA-9S0.021 j GWA-14S2.8 GWA-15D1.5 GWA-15S0.39 GWA-16D0.46 GWA-16S0.063 GWA-17S3.6 GWA-18D1.2 GWA-18S0.17 GWA-19S0.42 GWA-21S1.9 GWA-22D0.45 GWA-22S0.05 GWA-23S0.33 M1 GWA-26D0.063 GWA-26S0.62 S-20.031 SW -10.016 j SW -4ND SW -5ND SW -60.029 S-90.017 j S-3NS S-4NS S-8NSS-8BNS S-10NS AB-14BR0.072 M1 AB-14D2 AB-32D0.55 GWA-9BR0.23 GWA-17D1.4 GWA-24D1.3 SW -20.037 SW -70.055 AB-6A12.7 AB-29SND AB-35BR0.97 GWA-1D6.8 S-10.3 SW -30.053 AB-4D5.4 AB-4S0.053 j,D* AB-11D2.2 M6 AB-20D0.94 AB-21BRL0.0089 j AB-24SLND AB-26D0.73 AB-26S0.29 AB-33D0.015 j BG-1DA0.54 BG-2BRA-20.66 BG-4D0.28 GWA-4BR0.0094 j GWA-5BRA0.036 GWA-6BR0.13 j+ GWA-14DA3.2 GWA-21BR0.092 GWA-21DA0.78 GWA-24BR0.12 ANIN0010.018 j ANSP0050.033 ANSW -15ND ANTD001ND ANWW-10.061 ANWW-40.068 S-50.041 S-7ND ANWW-20.137 j- ANWW-3NS S-6NS AB-1NS AB-8NS PH ADJBLDG NS SW -D10.028 SW -U10.03 FIGURE 14-86GROUNDWATER CONCENTRATIONTREND ANALYSIS -CHROMIUM (VI) IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:CH ROMIUM (VI) CONCENTRATION IS MEASURED IN μg/L AND THENCAC 02L STANDARD IS NOT ESTABLISHED. THE NCAC 02LSTANDARD FOR TOTAL CHROMIUM IS 10 μg/L ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA &< &<&< &<&<&< &< &<&< &< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&<&< &<&<&< &< &<&<&<&<&<&<&< &<&<&< &< &<&<&<&< &< &<&< &<&< &<&< &<&<&<&<&<&< &<&<&<&<&< &< &< &<&<&< &<&< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&<&< &<&<&< &<&<&<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&< &< !( !( !( !( !( !( !( !( !( !( !( !(!( !( !( !( !( ") ") ") ") ") ") ") !( !( &< ") ") ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-1R4.6 AB-20.95 B AB-2D3.6 AB-4BR1.2 AB-4D5.9 AB-4S0.52 AB-58.3 AB-6R10.7 AB-81.3 AB-9D0.66 AB-9S0.43 j AB-10D3.3 AB-10S1 AB-11D2.7 AB-12D0.76 AB-12SND AB-13D2 AB-13S0.56 AB-14BR0.36 j,B AB-20S0.53 AB-21S0.17 j,B AB-21SL0.24 j,B AB-22BR3.2 AB-22D3.2AB-22S1.7 AB-24BR0.21 j AB-24S0.21 j,B AB-25S3.8 AB-25SL0.27 j AB-26S2.4 AB-27S0.44 j AB-28S0.61 B AB-29D0.85 B AB-29S0.32 j,BAB-30D0.74 B AB-30S0.19 j,B AB-31S1.6 AB-32D4.6 AB-32S0.48 j AB-33D2.2 AB-33S0.34 j AB-34D0.95 AB-34S0.49 j AB-35BR1.8 AB-35S0.57 AB-36D0.43 j AB-36S0.43 jAB-37D0.86 AB-37S0.64 AB-38D0.32 j,B AB-38S0.4 j,B AB-39D0.4 jAB-39S0.37 j BG-1S0.37 j BG-2D2.1BG-2S9.2 BG-3D0.56 BG-3S3.1 BG-4BR2 BG-4S0.74 GWA-1BR2.9GWA-1D7 GWA-1S2.2 GWA-2D1.7 GWA-2SND GWA-3D0.78 GWA-3S0.22 j GWA-4D0.19 j GWA-4S0.66 GWA-5D0.68 GWA-5S1.4 GWA-6BRND GWA-6DA2.4 GWA-6S6.6 D3 GWA-7D15 GWA-7S7.5 GWA-8D5.8 GWA-8S8.6 GWA-9BR0.97 B GWA-9D1.5 GWA-9S0.7 B GWA-14S4.8 GWA-15D1.6 GWA-15S0.51 GWA-16D1.1 GWA-16S0.99 GWA-17D3.5 GWA-18D1.5 GWA-18S0.39 j GWA-19S1.9 GWA-21S3 GWA-22D26.9 GWA-22S0.46 j,B GWA-23S1.3 GWA-26D0.57 GWA-26S2.8 S-12.8 S-3ND S-4ND S-8BND S-10ND SW -1ND SW -20.28 j SW -30.28 j,B SW -60.19 j SW -70.3 j S-9ND AB-14D3.3 GWA-17S4.5 GWA-24D2.3 ANSW -150.38 j ANWW-40.47 j AB-6A12.6 AB-27BR0.64 AB-27D0.73 AB-38BR0.32 j,B S-20.31 j,B S-6ND S-8ND SW -40.95 SW -50.23 j,B AB-20D1.1 AB-21BRL0.33 j,B AB-23S0.19 j AB-24SL0.24 j AB-26D2.5 BG-1DA6.8 BG-2BRA-28.9 BG-4D2.3 GWA-4BR9 GWA-5BRA2.3 GWA-14DA7.5 GWA-21BR0.73 GWA-21DA3.7 GWA-24BR2.2 PH ADJBLDG 1.2 ANIN0010.23 j ANSP005ND ANTD001ND ANWW-10.56 B ANWW-30.5 S-50.2 j S-70.15 j ANWW-20.37 j AB-1NS SW -D10.29 j SW -U10.33 j FIGURE 14-87GROUNDWATER CONCENTRATIONTREND ANALYSIS -CHROMIUM (TOTAL) IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:CH ROMIUM (TOTAL) CONCENTRATION IS MEASURED IN μg/L ANDTHE NC AC 02L STANDARD IS 10 μg/L. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). &< &<&< &<&<&< &< &<&< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&<&< &<&<&< &< &<&<&<&<&<&<&< &<&<&< &< &<&<&<&< &< &<&< &<&< &<&< &<&<&<&<&<&< &<&<&<&<&< &< &< &<&<&< &<&< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&<&< &<&<&< &<&<&<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&< !( !( !( !( !( !( !( !( !( !( !( ") ") ") ") ") ") ") !( !( !( !( !( !( !( !( &< &< &< ") ") ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-1R0.12 AB-21.8 AB-2D0.041 j AB-4BR1.7 AB-4D0.063 j AB-4S0.92 AB-50.32 AB-6R0.096 j AB-9D0.024 j AB-9S7 AB-10S2 AB-11D0.043 j AB-12D0.14 AB-12SND AB-13D0.16 AB-13S0.85 AB-14BR0.012 j AB-20S3.3 AB-21S0.8 AB-22D0.55 AB-22S32.3 AB-24BR0.072 j,B AB-24S0.96 AB-25S2.5 AB-25SL0.079 j AB-27BR0.5 AB-27D0.75 AB-29D0.45AB-30S2.4 AB-31S0.18 AB-32D0.17 AB-32S19.7 AB-33D0.27 AB-33S14.2 AB-34D0.089 j,B AB-34S2 AB-35BR0.024 j AB-35S0.16 B AB-36D0.1AB-36S1.5 AB-37D0.24 AB-37S0.5 AB-38D0.79 AB-39S2.7 BG-1S0.056 j BG-2D0.11BG-2S0.43 BG-3D0.055 j,B BG-3S0.12 B BG-4BR0.072 j GWA-1BR0.071 j GWA-1D0.052 j GWA-1S3 GWA-2S5.9 GWA-3D0.11 GWA-3S11.7 GWA-4D0.053 j,B GWA-4S5.7 GWA-5D0.1 B GWA-5S20 GWA-6BR0.88 j GWA-6DA0.39 GWA-6S3640 D3,M6 GWA-7D0.12 GWA-7S74.6 GWA-8D0.4 GWA-8S0.62 GWA-9BR0.069 j GWA-9D0.23 GWA-9S9.1 GWA-14S3.5 GWA-15D0.034 j,B GWA-15S0.12 B GWA-16D0.079 j GWA-16S0.87 GWA-17D0.38GWA-17S0.17 GWA-18D0.23 GWA-19S0.2 GWA-22D0.9 GWA-22S17.5 GWA-23S0.56 GWA-24D0.23 GWA-26S0.26 S-13.5 S-20.37 SW -60.086 j SW -70.17 S-8BNS S-10NS AB-6A0.091 j AB-21SL1.1 AB-29S25 GWA-26D0.31 ANWW-40.44 SW -11.3 SW -30.065 j,B SW -425.2 SW -586.6 S-90.95 j AB-10D0.069 j AB-14D1.7 AB-22BR0.18 AB-26S1.2 AB-27S5.7 AB-28S9.7 AB-30D0.18 AB-38BR0.18 AB-38S2.5 AB-39D0.16 B BG-4S0.25 GWA-2D0.09 j GWA-18S0.2 GWA-21S1.6 ANSW -150.46 SW -21.4 S-3NS S-4NS S-8NS AB-20D0.022 j AB-21BRL0.11 AB-23S0.29 j AB-24SL0.048 j,B AB-26D0.34 BG-1DA0.16 BG-2BRA-20.15 BG-4D0.43 GWA-4BR0.14 GWA-5BRA0.16 GWA-14DA0.25 GWA-21BR0.3 GWA-21DA0.11 B GWA-24BR0.2 ANIN001ND ANSP0051.4 ANTD0010.74 j ANWW-10.21 ANWW-30.16 j S-535.4 S-77.6 ANWW-20.63 S-6NS AB-1NS AB-8NS PH ADJBLDG NS SW -D10.2 SW -U10.12 FIGURE 14-88GROUNDWATER CONCENTRATIONTREND ANALYSIS -COBALT IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:COBALT CONCENTRATION IS MEASURED IN μg/L AND THE IMACSTANDARD IS 1 μg/L. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). &< &<&< &<&<&< &< &<&< &< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&<&< &<&<&< &< &<&<&<&<&<&<&< &<&<&< &< &<&<&<&< &< &<&< &<&< &<&< &<&<&<&<&<&< &<&<&<&<&< &< &< &<&<&< &<&< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&<&< &<&<&< &<&<&<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&< &< !( !( !( !( !( !( !( !( !( !( !( !(!( !( !( !( !( ") ") ") ") ") ") ") !( !( &< ") ") ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-1R29.8 j AB-2178 AB-2D27.1 j AB-4BRND AB-4D30.2 j AB-4S584 AB-5764 AB-6AND AB-6R140 AB-833.9 AB-9DND AB-9S5550 AB-10S406 AB-11DND AB-12D305 AB-12S39 AB-13D375 AB-13S27.5 j AB-14BRND AB-14D282 AB-22BR454 AB-22D642AB-22S2700 AB-24BR143 AB-24S2100 AB-25SL78.6 AB-26S595 AB-27BR180AB-28S6180 AB-30S4910 AB-32D149 AB-32S32700 AB-33D446 AB-34D164 AB-34S108000 AB-35BR31.5 j AB-35S49100 AB-36D97.4 AB-37D336 AB-37S686 AB-38BR41.4 j AB-38D262 AB-38S26300 AB-39D29.7 jAB-39S55100 BG-1S168 BG-2D94.7BG-2S227 BG-3D59.7 BG-3S207 GWA-1BRNDGWA-1DND GWA-1S95.5 GWA-2D111 GWA-2S120 GWA-3S9230 GWA-4DND GWA-4S455 GWA-5D126 GWA-5S1110 GWA-6DA721 GWA-6SND GWA-7DND GWA-7S152 GWA-8D233 GWA-8S923 GWA-9BR69.2 GWA-9D463 GWA-9S1130 GWA-14S61.5 GWA-15DND GWA-15S40.9 j GWA-16D102 GWA-16S672 GWA-17D206GWA-17S356 GWA-18D40.8 j GWA-19S210 GWA-21S34.9 j GWA-23S108 GWA-24D318 GWA-26D88 GWA-26S468 SW -7333 AB-21S11500AB-21SL1110 AB-25S416 AB-27D1030 AB-27S13100 AB-29S13500 AB-31S606 AB-33S41100 ANWW-4515 S-19700 S-819 SW -1126 SW -350.4 SW-44620 SW -58080 S-991.7 AB-10D39.4 j AB-20S2340 AB-29DNDAB-30DND AB-36S1490 BG-4BR74.8 BG-4S229 GWA-3D195 GWA-6BR60 j+GWA-18S101 GWA-22D235 GWA-22S315 ANSW -15150 S-2137 S-3221 S-4147 S-6188 S-8B178 S-1027 SW -2121 SW -6178 AB-20DND AB-21BRL104 AB-23S80.8 AB-24SL126 AB-26D405 BG-1DA151 BG-2BRA-2148 BG-4D171 GWA-4BR164 GWA-5BRA363 GWA-14DA306 GWA-21BR192 GWA-21DA92.9 GWA-24BR436 PH ADJBLDG ND ANIN001150 ANSP005160 ANTD00179 ANWW-1441 ANWW-3270 S-5ND S-7110 ANWW-259 AB-1NS SW -D1256 SW -U1202 FIGURE 14-89GROUNDWATER CONCENTRATIONTREND ANALYSIS -IRON IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:IRON CONCENTRATION IS MEASURED IN μg/L AND THE NCAC 02LSTANDARD IS 300 μg/L. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). &< &<&< &<&<&< &< &<&< &< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&<&< &<&<&< &< &<&<&<&<&<&<&< &<&<&< &< &<&<&<&< &< &<&< &<&< &<&< &<&<&<&<&<&< &<&<&<&<&< &< &< &<&<&< &<&< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&<&< &<&<&< &<&<&<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&< &< !( !( !( !( !( !( !( !( !( !( !( !(!( !( !( !( !( ") ") ") ") ") ") ") !( !( &< ") ") ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-2DND AB-4BR459 AB-4S152 AB-520 AB-6A11.2 AB-6R27.7 AB-8ND AB-9S9180 AB-11DND AB-12D8.3 AB-12S32 AB-13D9.9 AB-13S17.5 AB-14BRND AB-21S1190AB-21SL218 AB-22BR123 AB-24BR163 AB-24S527 AB-25SL39.1 AB-27D126 AB-27S2920 AB-30S1160 AB-31S41.1 AB-32D16.6 AB-32S5420 AB-33S7640 AB-34D5.3 AB-34S7120 AB-35BR2.6 j AB-35S8290 AB-37D8.7 AB-37S52.1 AB-38BR106 AB-38D70.8 AB-38S1710 AB-39D25.2AB-39S4960 BG-1S7.1 BG-2D5.4BG-2S8.3 BG-3D3.4 j BG-3S32.6 GWA-1BR6.6GWA-1D10 GWA-2D10.8 GWA-2S160 GWA-4D14.7 GWA-4S488 GWA-5D53.1 GWA-5S4310 GWA-7D6.7 GWA-7S333 GWA-8S21.9 GWA-9BR20.4 GWA-9D26.5 GWA-9S719 GWA-14S30.7 GWA-15D4.7 j GWA-15S122 GWA-16D6.6 GWA-16S608 GWA-17D81 GWA-18D18.3 GWA-19S23.1 GWA-21S157 GWA-23S27.6 GWA-24D17.9 GWA-26D176 GWA-26S22 ANSW -15160 S-62600 SW -761.5 AB-10S770AB-22S1160 AB-27BR324 GWA-3D19.1 GWA-6DA433 ANWW-4164 S-11150 S-103120 SW-4522 SW -511400 S-9442 AB-1R2.8 j AB-251 AB-4D2.8 j AB-9D4.8 j AB-10D3.2 j AB-14D13.6 AB-20S209 AB-22D153 AB-25S214 AB-26S219 AB-28S2390 AB-29D7.2 AB-29S5390AB-30D4.3 j AB-33D59.9 AB-36D4.2 j AB-36S752 BG-4BR5.5 BG-4S38 GWA-1S15.8 GWA-3S2160 GWA-6BR129GWA-6S166000 GWA-8D7.3 GWA-17S8.9 GWA-18S60.6 GWA-22D35.5 GWA-22S625 S-265.1 S-3137 S-4104 S-8ND SW -169.9 SW -291.2 SW -39.9 SW -631.4 AB-20D3.2 j AB-21BRL74.1 AB-23S200 AB-24SL53.1 AB-26D114 BG-1DA5.7 BG-2BRA-228.8 BG-4D154 GWA-4BR68 GWA-5BRA53.4 GWA-14DA18.8 GWA-21BR278 GWA-21DA11.5 GWA-24BR34.6 PH ADJBLDG ND ANIN00112 ANSP0054.1 j ANTD001290 ANWW-153.9 ANWW-346 S-51400 S-7430 S-8BND ANWW-287 AB-1NS SW -D144.9 SW -U144.3 FIGURE 14-90GROUNDWATER CONCENTRATIONTREND ANALYSIS -MANGANESE IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:MANGANESE CONCENTRATION IS MEASURED IN μg/L AND THE NCAC02L STANDARD IS 50 μg/L. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). &< &<&< &<&<&< &< &<&< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&<&<&< &<&<&< &< &<&<&<&<&<&<&< &<&<&< &< &<&<&<&< &< &<&< &<&< &<&< &<&<&<&<&<&< &<&<&<&<&< &< &< &<&<&< &<&< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&<&< &<&<&< &<&<&<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&< !( !( !( !( !( !( !( !( !( !( !( !(!( !( !( !( !( ") ") ") ") ") ") ") !( !( &< &< &< ") ") ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-1R0.18 j,B AB-2ND AB-2DND AB-4BR4.2 AB-4D0.13 j AB-4S0.12 j AB-5ND AB-6AND AB-6R0.15 j AB-9D0.19 j AB-9S0.14 j AB-10DNDAB-10SND AB-11DND AB-12D0.25 j,B AB-12SND AB-13D0.94 AB-13SND AB-14BR13.6 AB-21SND AB-21S317 AB-21SL2950 AB-22SND AB-24S9.5 AB-25SL157 AB-27BR3.6 AB-27S3.4 AB-28S3.7 AB-30S7.1 AB-31SND AB-32D0.73 AB-32S0.15 j AB-33S6.5 AB-34D0.75 B AB-34SND AB-35BR2.4 AB-35S4.5 AB-37S0.11 j AB-38BR2.1 AB-38D0.56 AB-38S2.6 AB-39D0.18 j,BAB-39S0.23 j,B BG-1SND BG-2D1.3BG-2S0.13 j,B BG-3D0.27 j BG-3S0.31 j GWA-1BR1.1GWA-1D0.5 GWA-1SND GWA-2D0.26 j GWA-2SND GWA-3SND GWA-4SND GWA-5D0.78 GWA-5SND GWA-6BR2.2 jGWA-6SND GWA-7D0.39 j GWA-7SND GWA-8S0.12 j GWA-9BR9.5 GWA-9D1.5 GWA-9S0.14 j GWA-14SND GWA-15DND GWA-15S0.17 j GWA-16D0.41 j,B GWA-16S8.2 GWA-17D1 B GWA-18D0.63 B GWA-21SND GWA-22D1.4 GWA-22SND GWA-23SND GWA-26S0.83 S-1ND S-2ND S-3ND S-4ND S-6ND S-81.34 S-8BND S-10ND SW -70.46 j,B AB-27D16.3 GWA-3D1.3 SW-42.2 SW -5ND AB-14D0.22 j AB-20S13.7 AB-22BR1.5 AB-22D1.5 AB-24BR2.5 AB-25S180 AB-26S0.12 j AB-29D0.37 j AB-29S2.6AB-30D0.18 j AB-33D1.4 AB-36D1.5AB-36S2.3 AB-37D1.6 BG-4BR2.4 BG-4S0.29 j GWA-4D0.38 j,B GWA-6DA1.1 GWA-8D0.7 GWA-17S0.42 j GWA-18S0.68 B GWA-19S0.43 j GWA-24D0.41 j GWA-26D16.3 ANSW -1513.8 ANWW-40.33 j SW -19.1 SW -28.9 SW -30.54 SW -60.37 j,B S-915.2 AB-20D2.5 B AB-21BRL11.1 AB-23S50.3 AB-24SL57.3 AB-26D1.6 BG-1DA1.9 BG-2BRA-25.4 BG-4D7.7 GWA-4BR1.6 GWA-5BRA3.7 GWA-14DA1.4 GWA-21BR7.1 GWA-21DA1.3 GWA-24BR4.3 ANIN0010.4 j ANSP0051.6 j ANTD00112.4 ANWW-10.33 j ANWW-30.41 j S-5ND S-7ND ANWW-25.2 AB-1NS AB-8NS PH ADJBLDG NS SW -D10.89 B SW -U10.3 j,B FIGURE 14-91GROUNDWATER CONCENTRATIONTREND ANALYSIS -MOLYBDENUM IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:MOLY BDENUM CONCENTRATION IS MEASURED IN μg/L AND THENCAC 02L STANDARD IS NOT ESTABLISHED. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). &< &<&< &<&<&< &< &<&< &< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&<&< &<&<&< &< &<&<&<&<&<&<&< &<&<&< &< &<&<&<&< &< &<&< &<&< &<&< &<&<&<&<&<&< &<&<&<&<&< &< &< &<&<&< &<&< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&<&< &<&<&< &<&<&<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&< &< !( !( !( !( !( !( !( !( !( !( !( !(!( !( !( !( !( ") ") ") ") ") ") ") !( !( &< ") ") ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-1R2.5 AB-21.4 AB-2D1.6 AB-4BR1.5 AB-4S0.98 AB-6A1.1 AB-6R2.1 AB-8ND AB-9DND AB-9S0.74 AB-10D0.56AB-10S0.84 AB-11D2.8 AB-12DND AB-12SND AB-13D2.1 AB-13S2.4 AB-14D13.3 AB-21S1.6AB-21SL3.7 AB-22BR2.4 AB-22D4.3AB-22S3.8 AB-24BR1.8 AB-24S1.8 AB-25S6.4 AB-25SL1.7 AB-26S3.9 AB-27BR4.2 AB-27S0.75 AB-28S1.9 AB-29D3.5AB-30DND AB-30S1.3 AB-31S0.99 AB-32D3.1 AB-32S0.77 AB-33D1.7 AB-33S1.9 AB-34D0.47 j AB-34SND AB-35BR0.62 AB-35S0.57 AB-36D0.98AB-36S7.4 AB-37DND AB-38BR1.7 AB-38D2.1 AB-38S1.2 AB-39D0.73AB-39SND BG-1S0.89 BG-2D0.89BG-2S4.2 BG-3DND BG-3S2.5 BG-4BR1.7 BG-4S2.4 GWA-1BRNDGWA-1D1 GWA-1S0.84 GWA-2D0.46 j GWA-2S0.82 GWA-3DND GWA-3SND GWA-4DND GWA-4S0.49 j GWA-5DND GWA-5S3.6 GWA-6BRND GWA-6DA1.1 GWA-6S821 D3 GWA-7D5.8 GWA-7S11.1 GWA-8D4.1 GWA-8S9.5 GWA-9D0.92 GWA-9S2.7 GWA-14S5.6 GWA-15DND GWA-15S3.6 GWA-16D0.5 j GWA-16S2.8 GWA-17D1.4GWA-17S2 GWA-18D0.9 GWA-18S2.3 GWA-19S2.3 GWA-21S6.1 GWA-22S2.6 GWA-23S3.9 GWA-24D0.71 GWA-26S1 ANSW -150.64 S-21.6 SW -22.8 SW -3ND SW -6ND SW -7ND S-9ND AB-54.9 AB-20S32.4 AB-27D2 AB-29S3.8 AB-37S1.3 GWA-22D20.8 ANWW-40.48 j S-11.1 S-41.25 S-63.02 S-8B5.4 SW-428.8 SW -586.3 AB-4D3.2 AB-14BRND GWA-9BR0.74 GWA-26D0.69 S-3ND S-81.05 S-106.18 SW -12.4 AB-20DND AB-21BRL0.61 AB-23S0.34 j AB-24SL0.57 AB-26D1.6 BG-1DA3.7 BG-2BRA-24.6 BG-4D1.9 GWA-4BR4.3 GWA-5BRA1.3 GWA-14DA3.5 GWA-21BR0.66 GWA-21DA1.9 GWA-24BR2.1 PH ADJBLDG ND ANIN0011.1 ANSP005ND ANTD001ND ANWW-1ND ANWW-30.3 j S-59.1 S-70.99 ANWW-22.6 AB-1NS SW -D1<0.5 SW -U1<0.5 FIGURE 14-92GROUNDWATER CONCENTRATIONTREND ANALYSIS -NICKEL IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:NIC KEL CONCENTRATION IS MEASURED IN μg/L AND THE NCAC 02LSTANDARD IS 100 μg/L. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). &< &<&< &<&<&< &< &<&< &< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&<&< &<&<&< &< &<&<&<&<&<&<&< &<&<&< &< &<&<&<&< &< &<&< &<&< &<&< &<&<&<&<&<&< &<&<&<&<&< &< &< &<&<&< &<&< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&<&< &<&<&< &<&<&<&< &<&<&< &<&<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&< &<!( !( !( !( !( !( !( !( !( !(!( !( !( !( !( ") ") ") ") ") ") ") !( !( !( !( &< ") ") ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-1R6.3 AB-2D6.5 AB-4BR6.5 AB-4D6.1 AB-4S6.0 AB-54.5 AB-6A6.1 AB-6R6.5 AB-86.1 AB-9D6.6 AB-9S6.2 AB-10D6.1AB-10S6.1 AB-11D6.0 AB-12D6.5 AB-12S4.8 AB-13D6.2 AB-13S5.5 AB-14BR8.2 AB-14D4.9 AB-20S6.6 AB-21S6.7 AB-22D6.2 AB-22S5.1 AB-24BR7.4 AB-25S6.2 AB-25SL8.4 AB-26S5.6 AB-27BR7.5 AB-27D6.4 AB-27S6.6 AB-28S5.3 AB-30D6.6 AB-30S7.6 AB-31S5.8 AB-32D6.8 AB-33D7.4 AB-33S6.3 AB-34D7.0 AB-34S6.4 AB-35BR7.6 AB-35S6.5 AB-36S5.8 AB-37D7.0 AB-37S6.1 AB-38BR6.7 AB-38D6.2 AB-38S7.0 AB-39D5.9AB-39S6.5 BG-1S5.8 BG-2D7.1BG-2S6.0 BG-3D6.4 BG-4S5.5 GWA-1D6.7 GWA-2D6.7 GWA-2S5.1 GWA-3D7.7 GWA-3S5.9 GWA-4D6.8 GWA-4S5.4 GWA-5S5.4 GWA-6BR6.9GWA-6S3.6 GWA-7D6.4 GWA-8D6.6 GWA-8S6.0 GWA-9D6.8 GWA-9S5.2 GWA-14S4.3 GWA-15D6.2 GWA-15S5.9 GWA-16D6.2 GWA-16S6.4 GWA-17D6.8 GWA-18D6.8 GWA-18S7.3 GWA-22D6.7 GWA-24D7.5 GWA-26S7.0 S-37.8 S-47.9 S-88.0 SW -17.0 SW -26.8 SW -37.4 SW -67.4 AB-22BR7.7 S-16.9 AB-24.7 AB-21SL7.8 AB-24S6.9 AB-29D5.7 AB-29S5.2 AB-32S5.3 AB-36D7.5 BG-3S6.3 BG-4BR7.2 GWA-1BR7.2 GWA-1S5.0 GWA-5D6.8 GWA-6DA7.3 GWA-7S4.1 GWA-9BR7.5 GWA-17S5.5 GWA-19S5.9 GWA-21S4.8 GWA-22S5.1 GWA-23S4.6 GWA-26D7.4 ANSW -157.2 ANWW-47.5 S-27.0 S-64.2 S-8B6.7 S-105.7 SW -46.5 SW -55.5 SW -77.4 S-97.0 AB-20D7.7 AB-21BRL8.4 AB-23S8.4 AB-24SL7.5 AB-26D7.9 BG-1DA7.4 BG-2BRA-27.5 BG-4D7.0 GWA-4BR8.3 GWA-5BRA7.9 GWA-14D4.7GWA-14DA7.7 GWA-21BR8.2 GWA-21DA7.4 GWA-24BR8.3 PH ADJBLDG 6.6 ANSP0056.45 ANTD0017.3 ANWW-17.2 S-56.7 S-75.8 ANWW-26.5 ANIN001NS ANWW-3NS AB-1NS SW -D17.2 SW -U17.0 FIGURE 14-93GROUNDWATER CONCENTRATIONTREND ANALYSIS -pH IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:pH CONCENTRATION IS MEASURED IN S.U. AND THE NCAC02LSTANDARD IS A RANGE OF 6.5 - 8.5 S.U. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). &< &<&< &<&<&< &< &<&< &< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&<&< &<&<&< &< &<&<&<&<&<&<&< &<&<&< &< &<&<&<&< &< &<&< &<&< &<&< &<&<&<&<&<&< &<&<&<&<&< &< &< &<&<&< &<&< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&<&< &<&<&< &<&<&<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&< &< !( !( !( !( !( !( !( !( !( !( !( !(!( !( !( !( !( ") ") ") ") ") ") ") !( !( &< ") ") ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-2ND AB-2DND AB-4BRND AB-4DND AB-4S0.41 j AB-5ND AB-6A0.57 AB-6RND AB-8ND AB-9SND AB-10DNDAB-10S0.48 j AB-11DND AB-12D0.8 AB-12SND AB-13DND AB-13SND AB-14BRND AB-14D0.47 j AB-20S49.1 AB-21S0.63AB-21SLND AB-22BRND AB-22D0.34 jAB-22SND AB-24BRND AB-24SND AB-25SND AB-25SLND AB-26S0.32 j AB-27BRND AB-27D2.4 AB-27SND AB-28S17.3 AB-29DND AB-29SNDAB-30DND AB-30SND AB-31SND AB-32D0.43 j AB-32SND AB-33D0.66 AB-33SND AB-34DND AB-34SND AB-35BRNDAB-35S0.6 AB-36DNDAB-36S0.32 j AB-37DND AB-37SND AB-38BRND AB-38DND AB-38SND AB-39D3.3AB-39SND BG-1SND BG-2DND BG-3DND BG-3SND BG-4BRND BG-4SND GWA-1BRNDGWA-1DND GWA-1SND GWA-2DND GWA-2SND GWA-3DND GWA-3SND GWA-4D1.6 GWA-4S0.6 GWA-5DND GWA-5SND GWA-6BRND GWA-6DAND GWA-6S765 D3 GWA-7D6.6 GWA-7S14.1 GWA-8DND GWA-8SND GWA-9BRND GWA-9DND GWA-9SND GWA-14SND GWA-15DND GWA-15SND GWA-16DND GWA-16SND GWA-17DNDGWA-17SND GWA-18D0.36 j GWA-18SND GWA-19S0.34 j GWA-21SND GWA-22DND GWA-22S0.38 j GWA-23SND GWA-24D0.35 j GWA-26DND GWA-26SND ANSW -15ND ANWW-40.32 j S-11.2 S-20.45 j S-3ND S-4ND S-6ND S-8ND S-8BND S-10ND SW -11.1 SW -21.1 SW -3ND SW -41.4 SW -53 SW -6ND SW -7ND S-9ND AB-1R2.3BG-2S1.8 AB-9D2.2 AB-20DND AB-21BRLND AB-23S0.24 j AB-24SLND AB-26D0.44 j BG-1DAND BG-2BRA-2ND BG-4DND GWA-4BR2.2 GWA-5BRAND GWA-14DAND GWA-21BRND GWA-21DAND GWA-24BRND PH ADJBLDG ND ANIN001ND ANSP005ND ANTD001ND ANWW-1ND ANWW-3ND S-50.52 S-7ND ANWW-20.94 AB-1NS SW -D1<0.5 SW -U1<0.5 FIGURE 14-94GROUNDWATER CONCENTRATIONTREND ANALYSIS -SELENIUM IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:SELENIUM CONCENTRATION IS MEASURED IN μg/L AND THE NCAC02L STANDARD IS 20 μg/L. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). &< &<&< &<&<&< &< &<&< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&<&< &<&<&< &< &<&<&<&<&<&<&< &<&<&< &< &<&<&<&< &< &<&< &<&< &<&< &<&<&<&<&<&< &<&<&<&<&< &< &< &<&<&< &<&< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&<&< &<&<&< &<&<&<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&< !( !( !( !( !( !( !( !( !( !( !( ") ") ") ") ") ") ") !( !( &< &< &< ") ") !( !( !( !( !( !( ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-1R473 AB-23.9 j AB-2D102 AB-4BR278 AB-4D176 AB-4S40.2 AB-516.9 AB-6A206 AB-9D322 AB-9S158 AB-10D205 AB-11D114 AB-12D158 AB-12SND AB-13D198 AB-13S53.8 AB-14BR81.6 AB-21S3490AB-21SL1770 AB-22D380 AB-22S54.1 AB-24BR106 AB-24S850 AB-26S212 AB-27BR146 AB-27D523AB-28S1600 AB-29D226 AB-29S456AB-30D171 AB-31S268 AB-32D201 AB-32S37.3 AB-34D132 AB-35BR128 AB-35S1820 AB-36S604 AB-37D145 AB-38BR395 AB-38D368 AB-39D454AB-39S281 BG-1S30.2 BG-2D202BG-2S188 BG-3D229 BG-3S263 BG-4BR98.5 BG-4S263 GWA-1BR223GWA-1D246 GWA-1S9 GWA-2D141 GWA-2S31.4 GWA-3S84.4 GWA-4D249 GWA-4S356 GWA-5D714 GWA-5S32.2 GWA-6BR696GWA-6S1670 GWA-7S18.4 GWA-8D254 GWA-8S411 GWA-9D109 GWA-9S60.7 GWA-14S5.3 GWA-15D268 GWA-15S157 GWA-16D105 GWA-16S199 GWA-17D212 GWA-18S178 GWA-21S24.6 GWA-22D257 GWA-23S5.1 GWA-24D93.6 GWA-26D86.5 GWA-26S69.9 ANWW-440 SW -2162 SW -330.2 SW -474.6 SW -630.2 S-9NS AB-6R211 AB-10S216 AB-27S1030 AB-30S1400 AB-33D266 AB-33S3380 AB-34S1360AB-37S130 AB-38S977 GWA-6DA868 GWA-7D526 ANSW -15860 S-193.1 SW -52730 S-3NS S-4NS S-8NS AB-14D57.1 AB-20S2130 AB-22BR272 AB-25S1570 AB-25SL1720 AB-36D111 GWA-3D123 GWA-9BR90 GWA-17S97.2 GWA-18D143 GWA-19S119 GWA-22S6.7 ANTD0011700 S-276.3 SW -1144 SW -742.2 S-91880 AB-20D117 AB-21BRL90.5 AB-23S560 AB-24SL714 AB-26D223 BG-1DA106 BG-2BRA-2181 BG-4D251 GWA-4BR134 GWA-5BRA178 GWA-14DA144 GWA-21BR154 GWA-21DA118 GWA-24BR96.6 ANIN00136 ANSP005140 ANWW-131 ANWW-337 S-5200 S-7190 ANWW-2310 AB-1NS AB-8NS PH ADJBLDG NS SW -D160.8 SW -U134.5 S-6NS S-8BNS FIGURE 14-95GROUNDWATER CONCENTRATIONTREND ANALYSIS -STRONTIUM IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:STRON TIUM CONCENTRATION IS MEASURED IN μg/L AND THE NCAC02L STANDARD IS NOT ESTABLISHED. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). &< &<&< &<&<&< &< &<&< &< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&<&< &<&<&< &< &<&<&<&<&<&<&< &<&<&< &< &<&<&<&< &< &<&< &<&< &<&< &<&<&<&<&<&< &<&<&<&<&< &< &< &<&<&< &<&< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&<&< &<&<&< &<&<&<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&< &< !( !( !( !( !( !( !( !( !( !( !( !(!( !( !( !( !( ") ") ") ") ") ") ") !( !( &< ") ") ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-20.61 j AB-2D0.66 j AB-4BR5.7 AB-4D2 AB-4S8.1 AB-51.3 AB-6R26.3 AB-9S38.4 AB-10D23.7 AB-11D0.57 j AB-12D4.2 AB-12S0.16 AB-13D0.68 j AB-13SND AB-14BR5.8 AB-14D27.1 AB-20S214 AB-21S75.8AB-21SL140 AB-22D43.3 AB-24BR3.4 AB-24S20.1 AB-25SL59.5 AB-26S72.6 AB-27D67 AB-27S21.1 AB-28S132 AB-29D45.8AB-30D25.2 AB-30S46.7 AB-31S118 AB-32D23.5 AB-32S2.7 AB-33D6.5 AB-33S383 AB-34S164 AB-35BR2.8AB-35S234 AB-36D4 AB-36S18.5 AB-37D2.7 AB-37S2.3 AB-38BR17.8 AB-38D15.5 AB-38S13.4 AB-39S0.98 j BG-1S0.54 j BG-2D1.1 BG-4BR2.3 GWA-1BR12.7GWA-1D11.2 GWA-1SND GWA-2D4.7 GWA-2SND GWA-3S35.3 GWA-4D61.2 GWA-4S146 GWA-5D30 GWA-6BR137 GWA-6DA270 M6 GWA-6S1790 GWA-7S108 GWA-8D1.3 GWA-9D2.7 GWA-9S21.1 GWA-14SND GWA-15D4.5 GWA-16D0.88 j GWA-16S1.2 GWA-17D2.6 GWA-18D1.7 GWA-18S2 GWA-19S0.76 j GWA-21S1.1 GWA-22D1.1 GWA-22S1.3 GWA-24D2.2 GWA-26S1 ANWW-47.7 S-11.3 S-216.9 S-433 S-880 SW -244 SW -64.7 S-9215 AB-1R219 AB-6A28.6 AB-831 AB-9D46.4 AB-10S17.3 AB-27BR33.6 AB-39D32.5 GWA-7D105 ANSW -1550.6 S-330 S-665 S-8B220 S-10110 SW-463.4 SW -5666 SW -76.3 AB-22BR22 AB-22S2.2 AB-25S62.4 AB-29S44.5 AB-34D1.6 BG-2SND BG-3D0.76 j BG-3S0.76 j BG-4S0.72 j GWA-3D9.4 GWA-5S3.7 GWA-8S1.2 GWA-9BR8.1 GWA-15S10.9 GWA-17S5.4 GWA-23S1.2 GWA-26D7.3 SW -143.4 SW -35 AB-20D4.7 AB-21BRL12.1 AB-23S9.900001 AB-24SL20.6 AB-26D32.9 BG-1DA1.6 BG-2BRA-27.3 BG-4D1.9 GWA-4BR41.4 GWA-5BRA56.1 GWA-14DA6.3 GWA-21BR2 GWA-21DA2.3 GWA-24BR8.2 PH ADJBLDG 20 ANIN0014.5 ANSP00598.9 ANTD001235 ANWW-14.3 ANWW-34.7 S-550.1 S-772.3 ANWW-276.8 AB-1NS SW -D111.7 SW -U14.5 FIGURE 14-96GROUNDWATER CONCENTRATIONTREND ANALYSIS -SULFATE IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:SULFATE CONCENTRATION IS MEASURED IN mg/L AND THE NCAC02L STANDARD IS 250 mg/L. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). &< &<&< &<&<&< &< &<&< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&<&< &<&<&< &< &<&<&<&<&<&<&< &<&<&< &< &<&<&<&< &< &<&< &<&< &<&< &<&<&<&<&<&< &<&<&<&<&< &< &< &<&<&< &<&< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&<&< &<&<&< &<&<&<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&< !( !( !( !( !( !( !( !( !( !( !( !(!( !( !( !( !( ") ") ") ") ") ") ") !( !( &< &< &< ") ") ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-1RND AB-20.023 j AB-2DND AB-4BR0.022 j AB-4DND AB-4S0.053 j AB-50.032 j AB-6AND AB-6RND AB-9DND AB-9S0.025 j AB-10DNDAB-10SND AB-11DND AB-12DND AB-12SND AB-13DND AB-13SND AB-14BRND AB-14DND AB-21S0.063 j AB-21SL0.042 j AB-22BRND AB-22DNDAB-22S0.035 j AB-24BRND AB-24S0.046 j AB-25S0.18 AB-25SLND AB-26SND AB-27BRND AB-27DNDAB-28S0.33 AB-29DNDAB-30D0.016 j AB-30S0.044 j AB-31SND AB-32DND AB-32S0.021 j AB-33DND AB-33S0.092 j AB-34DND AB-34SND AB-35BRND AB-35SND AB-36D0.035 jAB-36S0.13 AB-37DND AB-37SND AB-38BRND AB-38DND AB-38S0.11 AB-39D0.089 j,BAB-39SND BG-1S0.017 j BG-2DNDBG-2S0.024 j BG-3DND BG-3SND BG-4BRND BG-4SND GWA-1BR0.047 j GWA-1D0.022 j GWA-1S0.035 j GWA-2DND GWA-2S0.022 j GWA-3DND GWA-3S0.027 j GWA-4DND GWA-4S0.073 j GWA-5DND GWA-5S0.14 B GWA-6BRND GWA-6DAND GWA-6S1.5 D3,B GWA-7D0.061 j GWA-7S0.11 GWA-8DND GWA-8S0.064 j GWA-9BRND GWA-9DND GWA-14S0.041 j GWA-15DND GWA-15SND GWA-16DND GWA-16SND GWA-17D0.054 jGWA-17SND GWA-18DND GWA-18SND GWA-19S0.034 j GWA-21S0.022 j GWA-22D0.017 j GWA-22S0.096 j GWA-23S0.032 j GWA-24DND GWA-26DND GWA-26SND ANSW -150.025 j ANWW-4ND S-10.037 j S-20.057 j S-3ND S-4ND S-60.31 S-8ND S-8BND S-10ND SW -20.11 SW -30.048 j SW -40.11 SW -50.24 SW -6ND SW -7ND S-9ND GWA-9S0.063 j SW -10.075 j AB-20S0.19 AB-27SND AB-29S0.052 j AB-20DND AB-21BRLND AB-23SND AB-24SLND AB-26DND BG-1DAND BG-2BRA-20.02 j BG-4DND GWA-4BRND GWA-5BRAND GWA-14DA0.034 j GWA-21BRND GWA-21DAND GWA-24BRND ANIN001ND ANSP005ND ANTD001ND ANWW-10.044 j ANWW-3ND S-50.087 j S-70.027 j ANWW-20.11 AB-1NS AB-8NS PH ADJBLDG NS SW -D10.019 j,B SW -U1<0.1 FIGURE 14-97GROUNDWATER CONCENTRATIONTREND ANALYSIS -THALLIUM IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:TH ALLIUM CONCENTRATION IS MEASURED IN μg/L AND THE IMACSTANDARD IS 0.2 μg/L. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). &< &<&< &<&<&< &< &<&< &< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&<&< &<&<&< &< &<&<&<&<&<&<&< &<&<&< &< &<&<&<&< &< &<&< &<&< &<&< &<&<&<&<&<&< &<&<&<&<&< &< &< &<&<&< &<&< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&<&< &<&<&< &<&<&<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&< &< !( !( !( !( !( !( !( !( !( !( !( !(!( !( !( !( !( ") ") ") ") ") ") ") !( !( &< ") ") ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-2ND AB-2D77 AB-4BR152 AB-4D104 AB-4S76 AB-5ND AB-6A115 AB-6R115 AB-8146 AB-9D179AB-9S131 AB-10D130AB-10S103 AB-11D86 AB-12D104 AB-12S29 AB-13D103 AB-13S44 AB-14BR113 AB-14D101 AB-21S568AB-21SL359 AB-22BR261 AB-22D240AB-22S42 AB-24S129 AB-26S148 AB-27BR154 AB-27S230AB-28S397 AB-29D160AB-30D137 AB-30S219 AB-31S210 AB-32D139 AB-34D94 AB-34S417 AB-35BR100AB-35S677 AB-36D101 AB-36S152 AB-37D112 AB-37S82 D6 AB-38BR194 AB-38D172 AB-39D216AB-39S171 BG-1SND BG-2D113BG-2S134 BG-3D111 BG-3S111 BG-4BR115 BG-4S112 GWA-1BR151GWA-1S54 GWA-2D85 GWA-2SND GWA-3D126 GWA-3S104 GWA-4D177 GWA-4S256 GWA-5D128 GWA-5S47 GWA-6BR357 GWA-6DA629 GWA-6S2670 GWA-7D278 GWA-7S175 GWA-8D101 GWA-8S231 GWA-9D73 D6GWA-9S87 GWA-14S27 GWA-15D147 GWA-15S107 GWA-17D110 GWA-18D81 GWA-18S86 GWA-21SND GWA-22D162 GWA-22SND GWA-24D89 GWA-26S53 S-3300 S-4320 S-8330 SW -1157 SW -475 SW -657 SW -760 S-9526 AB-1R400 AB-33S838 AB-38S168 GWA-1D161 ANSW -15231 S-6300 S-8B350 SW -2167SW-51020 AB-20S690 AB-24BR83 AB-25S238 AB-25SL234 AB-27D212 AB-29S171 AB-32S36 D6 AB-33D126 GWA-9BR108 GWA-16D73 GWA-16S75 GWA-17S60 GWA-19S61 GWA-23SND GWA-26D102 ANWW-442 S-175 S-2103 S-10180 SW -338 AB-20D97 D6 AB-21BRL127 AB-23S98.00001 AB-24SL118 AB-26D153 BG-1DA81 BG-2BRA-2121 BG-4D150 GWA-4BR164 GWA-5BRA177 GWA-14DA115 GWA-21BR148 GWA-21DA115 GWA-24BR110 PH ADJBLDG 308 ANIN001ND ANSP005366 ANTD001569 ANWW-141 ANWW-359 S-5249 S-7179 ANWW-2582 AB-1NS SW -D192 SW -U152 FIGURE 14-98GROUNDWATER CONCENTRATIONTREND ANALYSIS -TOTAL DISSOLVED SOLIDS IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:TOTAL DISSOLVED SOLIDS (TDS) CONCENTRATION IS MEASURED INmg/L AND THE NCAC 02L STANDARD IS 500 mg/L. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< !( !( !( !( !( !( !( !( !( !( !( ") ") ") ") ") ") ") !( !( ") !( !( !( !( !( !( ") &<&< &<&< &< &<&< &<&< &< &<&<&<&< &<&< &<&<&<&< &<&<&<&< &< &<&< &<&< ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 BG-4BR0.1088 GWA-1S0.2458 BG-1S0.2832 AB-1R0.3066 AB-12D0.3187 GWA-6S0.3412 BG-3D0.4077 AB-22S0.4232 AB-6A0.424 AB-13D0.427 AB-9D0.4754 GWA-17D0.545 GWA-21S0.582 GWA-16S0.625 GWA-5D0.648 AB-13S0.65 GWA-8S0.659 AB-24BR0.661 GWA-22D0.683 AB-22D0.69 GWA-18S0.694 GWA-16D0.741 GWA-26S0.775 BG-2D0.854 AB-33S0.87 GWA-3S0.895 AB-4BR0.924 GWA-4S0.932 AB-10S0.973 GWA-9BR0.976 GWA-23S0.977 GWA-17S1.007 GWA-6DA1.055 GWA-24D1.103 AB-14BR1.112 GWA-19S1.256 GWA-4D1.342 AB-51.49 GWA-7S2.035 GWA-5S2.465 BG-2S0.083 AB-38BR0.624 GWA-26D0.647 AB-32D0.759 GWA-18D0.799 AB-31S0.9849 AB-9S1.235 GWA-2S1.305 BG-4S1.357 AB-27BR0.1124 BG-3S0.177 AB-12S0.2099 AB-10D0.294 GWA-1BR0.338 AB-32S0.032 AB-35BR0.1424 BG-2BRA-20.17 GWA-3D0.1786 GWA-5BRA0.2256 GWA-6BR0.296 GWA-9D0.343 AB-25SL0.355 AB-25S0.3746 BG-4D0.395 AB-4D0.403 GWA-1D0.529 AB-14D0.53811 GWA-21DA0.558 AB-4S0.6873 AB-6R0.695 AB-26S0.719 AB-33D0.742 BG-1DA0.745 AB-21BRL0.777 GWA-4BR0.7976 GWA-23D0.82 GWA-24BR1.005 GWA-21BR1.052 GWA-22S1.059 GWA-2D1.111 AB-21SL1.142 AB-22BR1.218 AB-26D1.238 AB-11D1.256 AB-35S1.277 GWA-9S1.333 AB-21S1.525 GWA-7D1.61 AB-1NS AB-8NS PH ADJBLDG NS ANIN001NS ANSP005NS ANSW -15NS ANTD001NS ANWW-1NS ANWW-3NS ANWW-4NS S-1NS S-2NS S-5NS S-7NS SW -1NS SW -2NS SW -3NS SW -4NS SW -5NS SW -6NS SW -7NS ANWW-2NS S-9NS SW -U1NS S-3NS S-4NS S-6NS S-8NSS-8BNS S-10NS SW -D1NS AB-2NS AB-2DNS AB-20DNS AB-20SNS AB-23SNS AB-24SNS AB-24SLNS AB-27DNS AB-27SNS AB-28SNS AB-29DNS AB-29SNSAB-30DNS AB-30SNS AB-34DNS AB-34SNS AB-36DNSAB-36SNS AB-37DNS AB-37SNS AB-38DNS AB-38SNS AB-39DNSAB-39SNS GWA-8DNS GWA-14DANS GWA-14SNS GWA-15DNS GWA-15SNS FIGURE 14-99GROUNDWATER CONCENTRATIONTREND ANALYSIS -TOTAL RADIUM IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:TOTAL RADIUM CONCENTRATION IS MEASURED IN pCi/L AND THENCAC 02L STANDARD IS 5^ pCi/L. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). &< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &<&< &< &<&< &< &<&< &< &<&< &< &< &<&< &< &< &< &< &< &< &<&< &< &< &<&< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( !( !( !( !( !( !( !( !( !( ") ") ") ") ") ") ") !( !( ") !( !( !( !( !( !( ") &<&< &<&< &< &<&< &<&< &< &<&<&<&< &<&< &<&<&<&< &<&<&<&< &< &<&< &<&< ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-14BR0.00051 AB-33S0.00061 GWA-17D0.00071 AB-38BR0.0016 GWA-6DA0.0016 GWA-6S0.0061 AB-1RND AB-5ND AB-6AND AB-9SND AB-10DNDAB-10SND AB-12SND AB-13DND AB-13SND AB-31SND AB-32SND BG-1SND BG-2SND BG-3DND BG-3SND BG-4SND GWA-1SND GWA-2SND GWA-3SND GWA-4SND GWA-5SND GWA-8SND GWA-16DND GWA-17SND GWA-18DND GWA-18SND GWA-19SND GWA-21SND GWA-23SND GWA-24DND GWA-26SND AB-22S0.000067 j GWA-16S0.000069 j GWA-26D0.000072 j GWA-7S0.000092 j AB-32D0.00011 j BG-2D0.00011 j AB-9D0.00013 j AB-27BR0.00013 j GWA-4D0.00016 j GWA-9BR0.00017 j AB-12D0.00019 j GWA-22D0.00025 j AB-24BR0.00028 j BG-4BR0.00031 j AB-22D0.00039 j GWA-1BR0.0015 GWA-5D0.000075 j AB-4BR0.00022 j BG-4D0.00052 GWA-23D0.00052 GWA-4BR0.00056 GWA-5BRA0.00057 AB-26D0.00064 GWA-21BR0.0009 AB-21BRL0.0015 AB-25S0.0096 AB-25SL0.0147 AB-21S0.0161 AB-21SL0.0387 AB-4DND AB-4SND AB-6RND AB-11DND AB-14DND AB-26SND GWA-2DND GWA-9SND GWA-22SND GWA-9D0.000067 j AB-35BR0.00018 j BG-1DA0.0002 j GWA-21DA0.00023 j GWA-1D0.00024 j GWA-24BR0.0003 j AB-22BR0.00034 j AB-33D0.00035 j GWA-3D0.00035 j AB-35S0.00037 j GWA-7D0.00039 j BG-2BRA-20.00044 j GWA-6BR0.0018 j AB-1NS AB-8NS PH ADJBLDG NS S-3NS S-4NS S-6NS S-8NS S-8BNS S-10NS SW -D1NS FIGURE 14-100GROUNDWATER CONCENTRATIONTREND ANALYSIS -TOTAL URANIUM IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:TOTAL URANIUM CONCENTRATION IS MEASURED IN μg/mL AND THENCAC 02L STANDARD IS 0.03 μg/mL. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). &< &<&< &<&<&< &< &<&< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&<&< &<&<&< &< &<&<&<&<&<&<&< &<&<&< &< &<&<&<&< &< &<&< &<&< &<&< &<&<&<&<&<&< &<&<&<&<&< &< &< &<&<&< &<&< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&<&< &<&<&< &<&<&<&< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&< !( !( !( !( !( !( !( !( !( !( !( ") ") ") ") ") ") ") !( !( &< &< &< ") !( !( !( !( !( !( ") ACTIVEASH BASIN INACTIVEASH BASIN CATAWBA RIVER(LAKE WYLIE)DISCHARGE CANALASHSTORAGE ASHSTORAGE STRUCTURALFILL RETIRED ASH BASINASH LANDFILLPERMIT NO. 3612 AB-1R2.1 AB-20.44 AB-2D7.3 AB-4BR3.6 AB-4D4.8 AB-52.7 AB-6A4.4 AB-6R3.8 AB-9D6.6 AB-9SND AB-10D4.7AB-10S0.91 AB-11D1.7 AB-12D4.3 AB-12SND AB-13D6 AB-13S0.74 AB-14D1.1 AB-20S5.7 AB-22D15.3 AB-22S1.4 AB-24BR8.1 AB-24S11.1 AB-25S35.2 AB-26S1.7 AB-27D10.4AB-28S0.52 AB-29D7.3AB-30D12.3 AB-31S2 AB-32D7.8 AB-32S0.53 B AB-33D5 AB-33S0.42 B AB-34D11.9 AB-34S0.12 j AB-35BR7.2 AB-35S0.97 AB-36D8 AB-37D10 AB-37S9.1 AB-38BR4.3 AB-38D3.4 AB-38S1.3 AB-39D2.3AB-39S0.72 BG-1S0.83 BG-2D9.2BG-2S7.5 BG-3D6.6 BG-4BR9.9 BG-4S2.1 GWA-1S0.46 GWA-2D4.4 GWA-2SND GWA-3S0.15 j,B GWA-4D4.3 GWA-4S0.61 GWA-5D7.9 GWA-5S1.8 GWA-6BR4.3 GWA-6DA1.2 GWA-6SND GWA-7D8.5 GWA-7S0.35 B GWA-8D7.1 GWA-8S4 GWA-9D6.2 GWA-9S0.77 GWA-14S0.27 j GWA-15D4.9 GWA-15S4.4 GWA-16D8.2 GWA-16S1.8 GWA-17D4.9GWA-17S2.3 GWA-18D9.6 GWA-18S5 GWA-19S1 GWA-21SND GWA-23S0.33 GWA-24D13.3 SW -20.75 B SW -31.4 SW -61.4 SW -71.6 S-9ND S-3NS S-4NS S-8NS S-8BNS S-10NS AB-4S1.8 AB-14BR15.9 AB-21S7.8 AB-30S9.2 AB-36S1.4 GWA-3D9.2 GWA-9BR9.8 GWA-22D11 GWA-22S0.78 GWA-26D4.3 ANWW-42.4 S-110.8 SW -10.79 B SW -5ND AB-21SL4.6 AB-22BR1.7 AB-25SL6.1 AB-27BR1.3 AB-27S0.68 AB-29S2.3 BG-3S2.9 GWA-1BR10.1 GWA-1D8.4 GWA-26S3.2 ANSW -150.19 j S-20.16 j SW -45.9 AB-20D11.3 AB-21BRL2.3 AB-23S5.1 AB-24SL2.7 AB-26D6.2 BG-1DA11 BG-2BRA-29.9 BG-4D7.4 GWA-4BR5.7 GWA-5BRA3.7 GWA-14DA11.7 GWA-21BR15.9 GWA-21DA15.3 GWA-24BR9.3 ANIN0011 ANSP005ND ANTD001ND ANWW-11.7 ANWW-31.4 S-50.13 j S-70.14 j ANWW-20.86 j AB-1NS AB-8NS PH ADJBLDG NS SW -U11.3 S-6NS SW -D1NS FIGURE 14-101GROUNDWATER CONCENTRATIONTREND ANALYSIS -VANADIUM IN ALL FLOW LAYERS AND AOWSALLEN STEAM STATIONDUKE ENERGY CAROLINAS, LLCBELMONT, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: C. SUTTELLCHECKED BY: L. DRAGO DATE: 01/24/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Allen\Map_Docs\CSA_Supplement_2\Allen - Groundwater Concentration Trend Analysis.mxd 350 0 350 700175 GRAPHIC SCALE IN FEET &<MONITORING W ELL &<BACKGROUND MONITORING W ELL &<ABANDONED MONITORING W ELL !(AOW SAMPLE LOCATION ")WATER SAMPLE LOCATION WATER SUPPLY W ELL ASH BASIN WASTE BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY LANDFILL BOUNDARY DORS FILLS BOUNDARIES ASH BASIN COMPLIANCE BOUNDARY LANDFILL COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS ALLENPLANT SITE BOUNDARY <ST REAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) LEGEND DECREASING CONCENTRATION OVER TIME1 INCREASING CONCENTRATION OVER TIME1 STABLE CONCENTRATION OVER TIME1 UNKNOWN CONCENTRATION OVER TIME1 NOTES:VAN AD IUM CONCENTRATION IS MEASURED IN μg/L AND THE IMACSTANDARD IS 0.3 μg/L. ND = NON-DETECT NS = N OT SAMPLED GR OUN DWATER CONCENTRATIONS REPORTED ARE FROMSEPTEMBER 2017 SAMPLING EVENT. TH E DETERMINATION OF CONCENTRATION TRENDS OVER TIME AREGENERALIZED BASED ON AVAILABLE DATA AND WERE NOTSTATISTICALLY DETERMINED. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFERTO AN ALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DIS PLAYED WATER WELL LOCATIONS REFLECT INFORMATIONAVAILABLE UP TO DECEMBER 31, 2015. PROPE RTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AER IAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONOCTOBER 11, 2017. AERIAL WAS COLLECTED ON OCTOBER 8, 2016. DR AWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83). SW-D1 SW-U1 SOURCE NOTES: NOT ALL UTILITIES ARE IDENTIFIED ON THIS DRAWING. THE UTILITIES SHOWN ON THIS DRAWING ARE VISUAL AIDS. THE HORIZONTAL AND VERTICAL LOCATIONS OF THE UTLITIES HAVE NOT BEEN FIELD VERIFIED. ANY UTILITIES SHOWN ARE APPROXIMATE. LEGEND WELL IN DEEP ZONE WELL IN SHALLOW ZONE WELL IN BEDROCK ZONE ABMW-07 WELL IN ASH PORE WATER WELL ABANDONED ASH BASIN COMPLIANCE BOUNDARY PARCEL LINE DUKE ENERGY (APPROXIMATE) ASH BASIN WASTE BOUNDARY WATER SUPPLY WELL SAMPLED WATER SAMPLE LOCATION SAMPLED SURFACE WATER FLOW DIRECTION FIGURE 14-102 COMPREHENSIVE SOLIDS DATA ALLEN STEAM STATION 253 PLANT ALLEN RD BELMONT, NORTH CAROLINA DUKE ENERGY CAROLINAS FIG 14-102 (SOIL-SED) L. DRAGO JOHN CHASTAIN PROJECT MANAGER: LAYOUT NAME: DRAWN BY: CHECKED BY: C. SUTTELL DATE: DATE: www.synterracorp.com 148 River Street, Suite 220 Greenville, South Carolina 29601 864-421-9999 GRAPHIC SCALE 4002001000200 (IN FEET) AREA OF WETNESS (AOW) SAMPLE LOCATION WATER SUPPLY WELL NOT SAMPLED APPROXIMATE STREAM (NON-JD) TOPOGRAPHY IS BASED ON LIDAR BARE EARTH DATA OBTAINED FROM THE FRIS\NORTH CAROLINA FLOOD RISK INFORMATION SYSTEM AT http://fris.nc.gov/fris/Download.aspx?FIPS=031&ST=NC&user=General%20Public AND A DRAWING TITLED AERIAL TOPOGRAPHIC SURVEY-ALLEN STEAM STATION BY WSP, JOB NUMBER 157002.00 AND DRAWING FILE NAME APRIL 2014_ALLEN_FINAL_10-30-15.DWG SAMPLE LOCATIONS WERE OBTAINED FROM HDR INFORMATION AND MAY BE APPROXIMATE IN SOME CASES. SOIL OR GEOTECHNICAL BORING APPROXIMATE POND OR RESERVOIR (NON-JD) APPROXIMATE EFFLUENT CHANNEL APPROXIMATE ASH BASIN PONDED WATER AB-37SAB-37D AB-36S AB-36D SB-1 AB-35D AB-35S AB-35BR SB-6 SB-2 SB-4 SB-3 AB-2D AB-2 GWA-22S GWA-22D AB-13S AB-13D S-10 OW-18 AB-30SAB-30D AB-28D AB-28S OW-19 OW-12 OW-8 AB-34S AB-34D SB-5 OW-3 AB-39S AB-39D OW-7 AB-33D AB-33S CCR-5DCCR-5 CCR-6DCCR-6 CCR-7D CCR-7S CCR-8D CCR-8S CCR-9S CCR-9D OW-5 S-9 OW-10 AB-32S AB-32D OW-9 OW-20 AB-31D AB-31S AB-29D AB-29S AB-29SL AB-27DAB-27BR AB-27S SW-4 SW-3 GWA-5D GWA-5S GWA-5BRA CCR-11S CCR-11D OW-16 GWA-4D GWA-4S GWA-4BR AB-9D AB-9S SW-7 ANSW-16 CCR-14S CCR-14D AB-26D AB-26S GWA-3D GWA-3S GWA-3BRA SB-9 SW-2 CCR-17S CCR-17D S-5 S-6 S-7 CCR-16D CCR-16S S-8B S-8 ANSW-15 S-4 ANSP002 AB-10D AB-10S ANSP002 S-3 ANWW-2 S-2 CCR-18S CCR-18D AB-22D AB-22BRL AB-22S SW-1 ANSP005 CCR-20SCCR-20D CCR-22S AB-11D CCR-23D CCR-23S GWA-2D GWA-2S GWA-1D GWA-1S GWA-1BR S-1 AB-12S AB-12D GWA-26S AB-5 pH WELL CCR-21D CCR-21S AB-21S AB-21D AB-21SLAB-21BR AB-21BRL SB-8 AB-23S AB-20S AB-20D GWA-9D GWA-9BR GWA-9S SW-5 AB-4S AB-4D AB-4BR AL49 AL58AL57 AL55 GWA-23D GWA-23S BGSB-GWA-23 AL51 AL56 AL54 AB-24S AB-24D AB-24BRAB-24SL ANWW-3 AB-14D AB-14BR AL59 AL60AL61AL62 AL67 AL68 AL69 AL70 AL71 AL63 AL72 AL73 AL53AL52 AL66 AL65 AL64 SB-7 AB-38D AB-38S AB-38BR GWA-18D GWA-18S CCR-1SCCR-1DA CCR-BG-1S AB-1R AB-1 GWA-17DGWA-17S CCR-2S CCR-2D GWA-8D BG-4D BG-4S BG-4BR AL133 AL1 AL131 BGSB-BG-3 BG-3S BG-2D BG-2S BG-2BRA-2 BGSB-BG-2 GWA-16DGWA-16S AL139 AL3 AL96 AL95 CCR-3DA CCR-3S GWA-7D GWA-7S GWA-6DA GWA-6S CCR-4SA CCR-4DA BGSB-BG-1 AL35 AL101 AL48 AL93 AL94 AL114 AL47 AL142 AL45 AL46 AL37 AL44 AL43AL38 AL36 AL92 AL39 AL50 AL50 GWA-24D AB-25BR AB-25S AB-25SL AL113 AL121 AL141 AL74 AL100 AL20 AL22 AL34 AL21 AL23 AL33 AL32 AL24AL25 GWA-21DA GWA-21S GWA-21BR AL75 AL76 AL84 AL83 AL82 AL81 AL78 AL77 AL79AL80 GWA-14S GWA-14DA AL31 AL30 AL32-?? AL7 AL123 AL102 AL15 AL14 AL13 AL12 AL136 AL140 AL11 AL10 AL12 AL116 AL117 AL9 AL118 AL8 AL8-? AL4 AL5 GWA-19D GWA-19S AL19 AL18 AL17 AL16 GWA-15D GWA-15S AL6 AL29 AL28 AL110 AL27 AL26 AL130AL115 AL138 AL135 ANWW-4 SW-6 ANWW-1 ANSP001 ANTD001 AB-6AAB-6R AL111 AL108AL85 AL97 AL88 ANFD001 NPDES REGULATED PLANT WATER FEATURE NPDES REGULATED FLOW DIRECTION STAIRS ACTIVE ASH BASIN DISCHARGE TOWER PRIMARY POND 3PRIMARY POND 2PRIMARY POND 1 INACTIVE ASH BASIN ASH STORAGE STRUCTURAL FILL ASH STORAGE INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL-PHASE I PERMIT NO. 3612 WILDLIFE RD FARM RD MILWOOD LN IDELWOOD LNARMST R O N G R D HIGHLAND WAY HEATHER GLENN CT CAMDEN CTHIGHLA N D PLJOHN D O U G L A S D R WARREN DR MITCHELL STMITCHELL STSOUTHPOINT D R RIVER R U N ARMS T R O N G R DLAKE M IST DR RIVE R R U N REESE WI L S O N R D NUTALL OAK LN NUTALL OAK LN WOODBEND DR LAKE HILL CTPLANT A L L E N R D CANAL RD BOAT C LUB RDSOUTHPOINT RDSOUTHPOINT RD (NC HWY 273)STRUCTURAL FILL STRUCTURAL FILL STRUCTURAL FILL POWER PLANT SOUTH POINT FIRE DEPARTMENT EATON CORPORATION SAILAWAY BAY COAL PILE LANDFILL COMPLIANCE BOUNDARY LANDFILL BOUNDARY DORS FILL BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY 1/16/2018 1/16/2018 HOLDING BASIN BG-2BR BG-3D CCR-3D GWA-8S CCR-1D CCR-4D CCR-4S GWA-14D GWA-21D SOUTHPOINT RD (NC HWY 273)SOUTHPOINT RD (NC HWY 273)GWA-26D BG-1D AB-22BR GWA-3BR AB-8 STAIRS 48" HDPE DISCHARGE PIPE CULVERT CULVERT DISCHARGE TOWER HEAD WALL EMERGENCY SPILLWAY PIPES OBSERVATION WELL AT NEW HOLDING BASIN DEWATERING WELL AT NEW HOLDING BASIN GWA-5BR LAKE WYLIE (CATAWBA RIVER ) PIEZOMETER IN COMPETENT BEDROCK ZONE P-1 PIEZOMETER IN UNKNOWN ZONE (AECOM DATA) OW-15 OW-16 OW-18 OW-17 OW-14 OW-13 OW-22 OW-21PN-2D PN-1D OW-20 OW-12 OW-11 OW-8 OW-10 P-7 P-9 AL39 AL36 GWA-9BR GWA-9D GWA-9S GWA-5BR S-3 SB-7 SW-2 NPDES OUTFALL 002 NPDES OUTFALL 001 CELL 1 CELL 2A CELL 2B OW-5P-1 OW-2 P-3 OW-4 OW-6 RAB ASH LANDFILL WASTE BOUNDARY BASED ON LINER LIMITS RAB ASH LANDFILL COMPLIANCE BOUNDARY RAB ASH LANDFILL WASTE BOUNDARY BASED LINER LIMITS IN THE S&ME DRAWINGS FOR THE RAB ASH LANDFILL PHASE I, PROJECT NUMBER 7235-14-011, DATED 06-16-2015. RETIRED ASH BASIN AB-20D (3-5): Ash: pH=6.6 j, As=19.6, Sb=<3.8, Ba=244, Be=1.4, B=10.5, Cd=<0.46, Cl=<368, Cr=11.3, Co=5.8, Fe=3940, Mn=38, Mo=1.9, Ni=9.8, Se=2.7 j, Sr=73.3, SO4=<368, Tl=<3.8, V=26.5 AB-20D (28.5-30): Surficial: pH=5.4 j, As=<3.6, Sb=<3.6, Ba=47.1, Be=0.26 j, B=<18, Cd=<0.43, Cl=<341, Cr=9.6, Co=4.4, Fe=25600, Mn=300, Mo=<0.72, Ni=0.75, Se=<3.6, Sr=1.3, SO4=<341, Tl=<3.6, V=71.6 AB-20D (38.5-40): Surficial: pH=5.9 j, As=<3.2, Sb=<3.2, Ba=138, Be=0.45 j, B=<31.9, Cd=<0.38, Cl=<311, Cr=3.6, Co=12.3, Fe=20100, Mn=1140, Mo=<0.64, Ni=2.8, Se=<3.2, Sr=19.3, SO4=<311, Tl=<3.2, V=59.8 AB-20S (18.5-20): Ash: pH=7.3 j, As=24.4, Sb=<4.2, Ba=241, Be=1.6, B=14, Cd=<0.5, Cl=<399, Cr=7.5, Co=5.6, Fe=3710, Mn=32.2, Mo=1.1, Ni=9.6, Se=9.9, Sr=84.2, SO4=<399, Tl=<4.2, V=27.4 AB-21BR (156-157): Bedrock: pH=7.3 j, As=<5.1, Sb=<5.1, Ba=94.9, Be=<0.25, B=<12.6, Cd=<0.61, Cl=<267, Cr=2.5, Co=8.8, Fe=20000, Mn=563, Mo=<2.5, Ni=1 j, Se=<5.1, Sr=18.5, SO4=<267, Tl=<5.1, V=35.5 AB-21D (3-5): Ash: pH=7.1, As=30, Sb=<3.9, Ba=199, Be=2.8, B=23.5, Cd=<0.47, Cl=<396, Cr=16.3, Co=9.4, Fe=5000, Mn=32.5, Mo=<3.9, Ni=17.8, Se=9.2, Sr=136, SO4=<396, Tl=<7.8, V=45 AB-21D (23.5-25): Ash: pH=8, As=26.7, Sb=<4.3, Ba=318, Be=3.1, B=31.7, Cd=<0.52, Cl=<427, Cr=17.1, Co=9.5, Fe=6400, Mn=43.3, Mo=<4.3, Ni=17.8, Se=5.4, Sr=136, SO4=<427, Tl=<8.7, V=41.4 AB-21D (43.5-50): Ash: pH=7.9, As=52.6, Sb=<4.5, Ba=290, Be=3.4, B=46.9, Cd=<0.54, Cl=<439, Cr=22.4, Co=13, Fe=6370, Mn=43.2, Mo=4.1 j, Ni=24.4, Se=6.2, Sr=200, SO4=<439, Tl=<8.9, V=57.8 AB-21D (58.5-60): Surficial: pH=6.2, As=<3.7, Sb=<3.7, Ba=108, Be=0.41, B=20, Cd=<0.45, Cl=<369, Cr=7.3, Co=10.9, Fe=19200, Mn=524, Mo=<3.7, Ni=9, Se=<3.7, Sr=19.5, SO4=<369, Tl=<3.7, V=50.8 AB-21D (64-65.5): Surficial: pH=6.8, As=<3.6, Sb=<3.6, Ba=83.7, Be=0.38, B=<18.1, Cd=<0.43, Cl=<349, Cr=4.7, Co=6.1, Fe=16700, Mn=468, Mo=<3.6, Ni=4.6, Se=<3.6, Sr=14.6, SO4=<349, Tl=<3.6, V=42.7 AB-22D (13-14.5): Surficial: pH=7.0 j, As=<8.1, Sb=<8.1, Ba=106, Be=<0.4, B=<20.2, Cd=<0.97, Cl=<405, Cr=6.6, Co=6.4 j, Fe=29700, Mn=332, Mo=<4, Ni=3.5, Se=<8.1, Sr=2.7 j, SO4=<405, Tl=<8.1, V=85.1 AB-22D (33-34.5): Surficial: pH=5.7 j, As=<9.3, Sb=<9.3, Ba=160, Be=0.34 j, B=<23.3, Cd=<1.1, Cl=<464, Cr=12.5, Co=16.5, Fe=34800, Mn=1600, Mo=<4.7, Ni=9, Se=<9.3, Sr=7.1, SO4=<464, Tl=<9.3, V=93.3 AB-22D (60-62): Surficial: pH=NA, As=NA, Sb=NA, Ba=NA, Be=NA, B=NA, Cd=NA, Cl=NA, Cr=NA, Co=NA, Fe=NA, Mn=NA, Mo=NA, Ni=NA, Se=NA, Sr=NA, SO4=NA, Tl=NA, V=NA AB-23BRU (3-5): Ash: pH=6.9, As=35.7, Sb=<3.8, Ba=442, Be=3, B=23.6, Cd=<0.46, Cl=<376, Cr=14.7, Co=12.8, Fe=4510, Mn=39, Mo=1.4, Ni=18.4, Se=4.2, Sr=176, SO4=<376, Tl=<3.8, V=58.4 AB-23BRU (18.5-20): Ash: pH=8, As=42.7, Sb=<3.3, Ba=181, Be=1.4, B=12.7, Cd=0.22 j, Cl=<317, Cr=10.7, Co=5.2, Fe=3580, Mn=28.8, Mo=1.1, Ni=9, Se=<3.3, Sr=155, SO4=<317, Tl=<3.3, V=36.2 AB-23BRU (28.5-30): Surficial: pH=7, As=5.8, Sb=<3.6, Ba=192, Be=0.46, B=27, Cd=<0.43, Cl=<337, Cr=3.8, Co=15, Fe=22500, Mn=708, Mo=<0.72, Ni=3.2, Se=1.9 j, Sr=19.1, SO4=<337, Tl=<3.6, V=64.8 AB-23BRU (33.5-35): Surficial: pH=8.4, As=2.3 j, Sb=<3.4, Ba=151, Be=0.3 j, B=26.7, Cd=<0.41, Cl=<337, Cr=2, Co=8.4, Fe=19500, Mn=435, Mo=<0.68, Ni=2, Se=2.4 j, Sr=2.9, SO4=<337, Tl=<3.4, V=72.5 AB-24D (3-5): Ash: pH=7.6, As=48.9, Sb=<3.6, Ba=218, Be=2.4, B=24.7, Cd=0.26 j, Cl=<354, Cr=14.9, Co=11.9, Fe=5210, Mn=40.9, Mo=1.8, Ni=16.6, Se=6.1, Sr=134, SO4=312 j, Tl=<3.6, V=59.9 AB-24D (20-21.5): Ash: pH=7.6, As=53.2, Sb=<4, Ba=329, Be=3, B=31.8, Cd=<0.48, Cl=<379, Cr=15.4, Co=12.6, Fe=5320, Mn=35.3, Mo=1.6, Ni=18.8, Se=4.2, Sr=133, SO4=<379, Tl=<4, V=56.1 AB-24D (24-25.5): Ash: pH=7.8, As=47, Sb=<3.4, Ba=273, Be=1.7, B=17.6, Cd=0.96, Cl=<353, Cr=15, Co=7.2, Fe=5590, Mn=51.3, Mo=1.3, Ni=12.5, Se=2.9 j, Sr=176, SO4=<353, Tl=<3.4, V=43.3 AB-24D (45-46.5): Surficial: pH=5.3, As=<3.3, Sb=<3.3, Ba=42.2, Be=0.16, B=12.6, Cd=<0.39, Cl=<323, Cr=4.3, Co=2.7 j, Fe=15900, Mn=53, Mo=<0.66, Ni=2.1, Se=<3.3, Sr=4.8, SO4=<323, Tl=<3.3, V=58.6 AB-24D (55-56.5): Surficial: pH=6.7, As=<3.3, Sb=<3.3, Ba=106, Be=0.54, B=11.7, Cd=<0.4, Cl=<337, Cr=3.1, Co=8.9, Fe=15400, Mn=596, Mo=<0.67, Ni=14, Se=<3.3, Sr=23.7, SO4=<337, Tl=<3.3, V=50.3 AB-25BR (143-143): Bedrock: pH=8.1 j, As=<5.6, Sb=<5.6, Ba=318, Be=0.23 j, B=<14, Cd=<0.67, Cl=<266, Cr=22.5, Co=26.4, Fe=20500, Mn=2360, Mo=<2.8, Ni=35, Se=<5.6, Sr=53.1, SO4=<266, Tl=<5.6, V=44.2 AB-25BRU (52.3-53.7): Surficial: pH=6.8 j, As=3.2, Sb=<3.1, Ba=1420, Be=1.3, B=<62.3, Cd=1.2, Cl=<308, Cr=11.7, Co=931, Fe=24300, Mn=19500, Mo=22.7, Ni=27.5, Se=5, Sr=34.5, SO4=<308, Tl=<3.1, V=69.9 AB-25BRU (62.3-63.7): Surficial: pH=5.6 j, As=<3.5, Sb=<3.5, Ba=237, Be=0.82, B=<17.7, Cd=<0.43, Cl=<341, Cr=2.7, Co=10.9, Fe=15900, Mn=573, Mo=<0.71, Ni=2.8, Se=2.5 j, Sr=12.6, SO4=<341, Tl=<3.5, V=42.9 AB-25SL (3-4.5): Ash: pH=7.9 j, As=32.3, Sb=<3.4, Ba=219, Be=2.1, B=14.8, Cd=<0.4, Cl=<327, Cr=11.4, Co=9.4, Fe=4930, Mn=43.6, Mo=1.3, Ni=13.1, Se=10.6, Sr=108, SO4=186 j, Tl=<3.4, V=47.2 AB-25SL (13-14.5): Ash: pH=7.9 j, As=23.3, Sb=<3.8, Ba=261, Be=1.6, B=14.7, Cd=<0.46, Cl=<399, Cr=10.7, Co=7.2, Fe=5150, Mn=48.6, Mo=1.7, Ni=11, Se=8.7, Sr=90.3, SO4=211 j, Tl=<3.8, V=35.1 AB-25SL (38-44.5): Ash: pH=8.4 j, As=25.9, Sb=<3.4, Ba=258, Be=0.9, B=7.9, Cd=<0.41, Cl=<330, Cr=8, Co=5.2, Fe=8430, Mn=98.9, Mo=1.2, Ni=7.4, Se=<3.4, Sr=113, SO4=<330, Tl=<3.4, V=27.4 AB-26D (13.5-15): Surficial: pH=5.5 j, As=<6.4, Sb=<6.4, Ba=46.4, Be=<0.32, B=<16, Cd=<0.77, Cl=<320, Cr=15.9, Co=14.9, Fe=33800, Mn=800, Mo=<3.2, Ni=4.8, Se=<6.4, Sr=2 j, SO4=<320, Tl=<6.4, V=76.5 AB-26D (33.5-35): Surficial: pH=5.6 j, As=<6.2, Sb=<6.2, Ba=180 j, Be=0.35, B=<15.5, Cd=<0.74, Cl=<322, Cr=7.4 j, Co=14.2, Fe=28100, Mn=890 j, Mo=<3.1, Ni=5.1, Se=<6.2, Sr=2.4 j, SO4=<322, Tl=<6.2, V=69.8 AB-26D (95-105): Surficial: pH=NA, As=NA, Sb=NA, Ba=NA, Be=NA, B=NA, Cd=NA, Cl=NA, Cr=NA, Co=NA, Fe=NA, Mn=NA, Mo=NA, Ni=NA, Se=NA, Sr=NA, SO4=NA, Tl=NA, V=NA AB-27D (3-5): Ash: pH=7.3, As=58.3, Sb=<10.5, Ba=415, Be=3.2, B=14.6 j, Cd=<1.3, Cl=<521, Cr=29.6, Co=13.4, Fe=15900, Mn=90.4, Mo=3.1 j, Ni=35.4, Se=<10.5, Sr=350, SO4=<521, Tl=<10.5, V=124 AB-27D (8.5-10): Surficial: pH=5.3, As=<6.4, Sb=<6.4, Ba=47.3, Be=0.52, B=<16.1, Cd=<0.77, Cl=<325, Cr=13.9, Co=5 j, Fe=43900, Mn=280, Mo=<3.2, Ni=2.5, Se=<6.4, Sr=4, SO4=<325, Tl=<6.4, V=101 AB-27D (18.5-20): Surficial: pH=5.6, As=<6.8, Sb=<6.8, Ba=160, Be=0.61, B=<17, Cd=<0.82, Cl=<346, Cr=10.6, Co=14.9, Fe=41500, Mn=658, Mo=<3.4, Ni=6.8, Se=<6.8, Sr=5.8, SO4=<346, Tl=<6.8, V=104 AB-27D (23.5-25): Surficial: pH=5.3, As=<7, Sb=<7, Ba=33.7 j+, Be=0.21, B=<17.6, Cd=<0.85, Cl=<341, Cr=24.2, Co=4.8 j, Fe=43500 j-, Mn=203 j+, Mo=<0.7, Ni=2.3, Se=<7, Sr=2.2, SO4=<341, Tl=<7, V=100 AB-27D (28.5-30.5): Surficial: pH=NA, As=NA, Sb=NA, Ba=NA, Be=NA, B=NA, Cd=NA, Cl=NA, Cr=NA, Co=NA, Fe=NA, Mn=NA, Mo=NA, Ni=NA, Se=NA, Sr=NA, SO4=NA, Tl=NA, V=NA AB-28D (3-5): Ash: pH=7.7 j, As=33.5, Sb=<7.1, Ba=200, Be=2.3, B=17.8, Cd=<0.85, Cl=<356, Cr=15.6, Co=9.7, Fe=11800, Mn=84.7, Mo=<3.5, Ni=15.6, Se=<7.1, Sr=132, SO4=239 j, Tl=<7.1, V=63.9 AB-28D (14-15.5): Surficial: pH=6.8 j, As=<6.8, Sb=<6.8, Ba=76.3, Be=0.36, B=<16.9, Cd=<0.81, Cl=<323, Cr=16, Co=6 j, Fe=39100, Mn=275, Mo=<3.4, Ni=2.2, Se=<6.8, Sr=21.6, SO4=<323, Tl=<6.8, V=85 AB-28D (59.9-60.5): Surficial: pH=5.9 j, As=<7.4, Sb=<7.4, Ba=119, Be=0.64, B=<18.4, Cd=<0.88, Cl=<369, Cr=47.7, Co=10.1, Fe=21400, Mn=290, Mo=<3.7, Ni=17.2, Se=<7.4, Sr=37.2, SO4=<369, Tl=<7.4, V=28.6 AB-28D (69-70.5): Surficial: pH=6.5 j, As=<6.7, Sb=<6.7, Ba=138, Be=0.3 j, B=<16.7, Cd=<0.8, Cl=<321, Cr=4.4, Co=9.7, Fe=18900, Mn=228, Mo=<3.3, Ni=3.5, Se=<6.7, Sr=16.7, SO4=<321, Tl=<6.7, V=38.3 AB-29D (5-6.5): Ash: pH=6.4 j, As=18.7, Sb=<7.8, Ba=159, Be=0.91, B=<19.6, Cd=<0.94, Cl=<377, Cr=13.1, Co=8.1, Fe=18100, Mn=249, Mo=<3.9, Ni=8.5, Se=4.5 j, Sr=52, SO4=<377, Tl=<7.8, V=49.8 AB-29D (20-21.5): Ash: pH=8.1 j, As=41.3, Sb=<7.7, Ba=289, Be=1.7, B=15.3 j, Cd=<0.92, Cl=<379, Cr=16.7, Co=5.4 j, Fe=6400, Mn=58.1, Mo=<3.9, Ni=10.7, Se=4.5 j, Sr=187, SO4=<379, Tl=<7.7, V=31.9 AB-29D (45-46.5): Ash: pH=9.1 j, As=105, Sb=<7.4, Ba=784, Be=4.3, B=46.3, Cd=0.64 j, Cl=<376, Cr=32.6, Co=16.9, Fe=18600, Mn=156, Mo=2.6 j, Ni=26.2, Se=11.9, Sr=634, SO4=395, Tl=<7.4, V=101 AB-29D (45-46.5): Ash: pH=9.1 j, As=105, Sb=<7.4, Ba=784, Be=4.3, B=46.3, Cd=0.64 j, Cl=<376, Cr=32.6, Co=16.9, Fe=18600, Mn=156, Mo=2.6 j, Ni=26.2, Se=11.9, Sr=634, SO4=395, Tl=<7.4, V=101 AB-29D (60-66.5): Ash: pH=NA, As=11.3, Sb=<5.9, Ba=173, Be=0.72, B=23.5 j+, Cd=<0.71, Cl=<6.1, Cr=5.8, Co=7.8, Fe=16600, Mn=491 j+, Mo=<2.9, Ni=6.1, Se=<5.9, Sr=75, SO4=<300, Tl=<5.9, V=41.4 AB-30D (3-5): Ash: pH=7.5, As=<2.7, Sb=<2.7, Ba=146, Be=<0.27, B=19.5, Cd=<0.32, Cl=<266, Cr=17.7, Co=11.9, Fe=17000, Mn=182, Mo=<2.7, Ni=21, Se=<2.7, Sr=54.8, SO4=1070, Tl=<2.7, V=45 AB-30D (24-25.5): Ash: pH=7.5, As=41.2, Sb=<3.8, Ba=387, Be=2.7, B=26.9, Cd=<0.45, Cl=<360, Cr=26.5, Co=7.4, Fe=10600, Mn=141, Mo=<3.8, Ni=16.5, Se=5.2, Sr=218, SO4=<360, Tl=<3.8, V=52.7 AB-30D (34-35.5): Ash: pH=7.4, As=<6.9, Sb=<3.5, Ba=117, Be=0.52, B=40.1, Cd=<0.42, Cl=<336, Cr=9.2, Co=10.7, Fe=37400, Mn=527, Mo=<3.5, Ni=6.6, Se=<6.9, Sr=14, SO4=<336, Tl=<3.5, V=91.1 AB-30D (39-40.5): Ash: pH=6.1, As=<3, Sb=<3, Ba=158, Be=0.53, B=23.2, Cd=<0.37, Cl=<317, Cr=3.9, Co=12.6, Fe=19800, Mn=784, Mo=<3, Ni=6.8, Se=<3, Sr=10.5, SO4=<317, Tl=<6.1, V=49.7 AB-31D (13.5-15): Surficial: pH=NA, As=<5.9, Sb=<5.9, Ba=60.1, Be=0.26 j, B=37, Cd=<0.71, Cl=<292, Cr=12.7, Co=8.7, Fe=47600, Mn=350 j+, Mo=<3, Ni=2.6, Se=<5.9, Sr=3.5, SO4=170 j, Tl=<5.9, V=67.8 AB-31D (33.5-35): Surficial: pH=NA, As=<6.6, Sb=<6.6, Ba=69.9, Be=0.44, B=13.7 j, Cd=<0.79, Cl=<337, Cr=13, Co=14.6, Fe=15400, Mn=297 j+, Mo=<3.3, Ni=4.9, Se=<6.6, Sr=3.1 j, SO4=<337, Tl=<6.6, V=42.5 AB-32S (13.5-15): Surficial: pH=6.5 j, As=3.4 j+, Sb=<6.4, Ba=117, Be=0.96, B=23.7 j+, Cd=<0.76, Cl=<301, Cr=17.2, Co=56.8, Fe=34300, Mn=952, Mo=<3.2, Ni=6, Se=<6.4, Sr=5.6, SO4=<301, Tl=<6.4, V=80.7 AB-32S (33.5-35): Surficial: pH=6.1 j, As=<30.7, Sb=<6.1, Ba=97.9, Be=0.66, B=20 j+, Cd=<0.74, Cl=<297, Cr=14.5, Co=82.3, Fe=26800, Mn=822, Mo=<3.1, Ni=10.4, Se=<6.1, Sr=4.2, SO4=<297, Tl=<6.1, V=77.8 AB-32S (50-55): Surficial: pH=NA, As=NA, Sb=NA, Ba=NA, Be=NA, B=NA, Cd=NA, Cl=NA, Cr=NA, Co=NA, Fe=NA, Mn=NA, Mo=NA, Ni=NA, Se=NA, Sr=NA, SO4=NA, Tl=NA, V=NA AB-33D (3-5): Ash: pH=6.6 j, As=45.7, Sb=<7.6, Ba=292, Be=2.6, B=21.1 j+, Cd=<0.91, Cl=<375, Cr=18.1, Co=8.7, Fe=9060, Mn=56.8, Mo=<3.8, Ni=19.2, Se=<7.6, Sr=214, SO4=<375, Tl=<7.6, V=51 AB-33D (8.5-20): Ash: pH=6.1 j, As=10.9, Sb=<7.3, Ba=159, Be=0.64, B=17.1 j+, Cd=<0.88, Cl=<359, Cr=13, Co=<7.3, Fe=18900, Mn=211, Mo=<3.7, Ni=6.3, Se=<7.3, Sr=50.8, SO4=333 j, Tl=<7.3, V=29.2 AB-33D (23.5-25): Ash: pH=6.5 j, As=<6.7, Sb=<6.7, Ba=159, Be=0.31 j, B=28.1 j+, Cd=<0.8, Cl=<332, Cr=6.8, Co=7.6, Fe=35300, Mn=436, Mo=<3.3, Ni=8.5, Se=<6.7, Sr=45.4, SO4=207 j, Tl=<6.7, V=76.7 AB-33D (28.5-30): Ash: pH=6.3 j, As=<7.7, Sb=<7.7, Ba=120, Be=0.39, B=25.2 j+, Cd=<0.92, Cl=<376, Cr=4.4, Co=7.1 j, Fe=32400, Mn=398, Mo=<3.8, Ni=5.9, Se=<7.7, Sr=48.7, SO4=238 j, Tl=<7.7, V=74.2 AB-34D (3-5): Ash: pH=5.4, As=25.1, Sb=<2.8, Ba=157, Be=1.1, B=17, Cd=<0.34, Cl=<282, Cr=9.7, Co=3.9, Fe=8430, Mn=63.2, Mo=1.1, Ni=8.2, Se=4.9, Sr=108, SO4=3220, Tl=<2.8, V=33.8 AB-34D (14-14): Surficial: pH=6.8, As=39.8, Sb=<3.5, Ba=220, Be=1.7, B=18.5, Cd=<0.41, Cl=<349, Cr=14.9, Co=5.8, Fe=5090, Mn=58.1, Mo=0.6 j, Ni=10.4, Se=3.7, Sr=101, SO4=193 j, Tl=<3.5, V=39.9 AB-34D (34-34): Surficial: pH=4.2, As=<3.5, Sb=<3.5, Ba=105, Be=0.36 j, B=17.9 j, Cd=<0.41, Cl=<339, Cr=2.4 j, Co=18.4, Fe=11100, Mn=1150, Mo=<6.9, Ni=7.1, Se=<3.5, Sr=2.8, SO4=255 j, Tl=<3.5, V=37.2 AB-34D (44-44): Surficial: pH=5.3, As=<3.4, Sb=<3.4, Ba=206, Be=0.62, B=19.6 j, Cd=<0.41, Cl=<339, Cr=13.6, Co=12, Fe=13100, Mn=888, Mo=<6.8, Ni=9.9, Se=<3.4, Sr=13.2, SO4=<339, Tl=<3.4, V=42.7 AB-35BR (185-185): Bedrock: pH=8, As=1.5 j, Sb=<2.5, Ba=14.1, Be=0.071, B=2 j, Cd=<0.31, Cl=<260, Cr=0.42, Co=<2.5, Fe=2130, Mn=54.9, Mo=<0.51, Ni=<0.25, Se=2 j, Sr=7.2, SO4=<260, Tl=<2.5, V=2.7 AB-35D (3-5): Ash: pH=6.4 j, As=45.3, Sb=<1.3, Ba=409 j-, Be=1.7, B=9.7, Cd=<0.16, Cl=<325, Cr=8.4, Co=5.4, Fe=4980 j+, Mn=49.5 j+, Mo=1.6, Ni=9.6, Se=14.1, Sr=92.7, SO4=<325, Tl=<1.3, V=28.6 AB-35D (53.5-55): Ash: pH=7.6, As=14.8, Sb=<1.7, Ba=145, Be=0.83, B=11.7, Cd=<0.2, Cl=<416, Cr=6.7, Co=2.7, Fe=4070 j+, Mn=44.4, Mo=<0.84, Ni=5.9, Se=2.5, Sr=72.1, SO4=<416, Tl=<1.7, V=15.2 AB-35D (63.5-65): Ash: pH=5.7, As=<1.3, Sb=<1.3, Ba=81.4, Be=<0.39, B=24.7, Cd=<0.16, Cl=<316, Cr=11.3, Co=5.2, Fe=40000 j+, Mn=264, Mo=<0.65, Ni=2.5, Se=<1.3, Sr=3.5, SO4=<316, Tl=<1.3, V=88.2 AB-35D (73.5-75): Ash: pH=6.3, As=<1.2, Sb=<1.2, Ba=105, Be=0.41, B=10.4, Cd=<0.15, Cl=<314, Cr=1.9, Co=7.6, Fe=12600 j+, Mn=556, Mo=<0.62, Ni=3.9, Se=<1.2, Sr=16.2, SO4=<314, Tl=<1.2, V=29.9 AB-36D (3-5): Ash: pH=5.7, As=8.7 j+, Sb=<7.2, Ba=153 j+, Be=0.37, B=<18, Cd=<0.86, Cl=<340, Cr=5.3, Co=<7.2, Fe=11700, Mn=71.3, Mo=<3.6, Ni=5.2, Se=<7.2, Sr=34.5, SO4=<340, Tl=<7.2, V=18.3 AB-36D (8.5-10): Ash: pH=6.5, As=5.7 j, Sb=<8.1, Ba=105, Be=0.26 j, B=<20.2, Cd=<0.97, Cl=<400, Cr=3.7, Co=<8.1, Fe=8100, Mn=53.9, Mo=<4, Ni=3.8, Se=<8.1, Sr=25.5, SO4=<400, Tl=<8.1, V=13.4 AB-36D (18.5 - 20): Ash: pH=6.8, As=<6.8, Sb=<6.8, Ba=57, Be=0.36, B=<16.9, Cd=<0.81, Cl=<336, Cr=19.5, Co=14.1, Fe=14300, Mn=181, Mo=<3.4, Ni=9.8, Se=<6.8, Sr=39, SO4=<336, Tl=<6.8, V=39.3 AB-36D (28.5-30): Ash: pH=7, As=<5.8, Sb=<5.8, Ba=660, Be=0.8, B=<14.5, Cd=<0.7, Cl=<282, Cr=77, Co=20.2, Fe=25400, Mn=548, Mo=<2.9, Ni=93.4, Se=<5.8, Sr=88.7, SO4=<282, Tl=<5.8, V=58.6 AB-36S (23-25): Surficial: pH=NA, As=NA, Sb=NA, Ba=NA, Be=NA, B=NA, Cd=NA, Cl=NA, Cr=NA, Co=NA, Fe=NA, Mn=NA, Mo=NA, Ni=NA, Se=NA, Sr=NA, SO4=NA, Tl=NA, V=NA AB-37D (3-5): Ash: pH=6.1 j, As=6.6 j, Sb=<7.7, Ba=251, Be=0.4, B=<19.4, Cd=<0.93, Cl=<393, Cr=7.5, Co=<7.7, Fe=31400, Mn=210, Mo=<3.9, Ni=10, Se=<7.7, Sr=35.8, SO4=<393, Tl=<7.7, V=5.2 j AB-37D (10-11.5): Ash: pH=5.2 j, As=<6.5, Sb=<6.5, Ba=23.6, Be=0.35, B=<16.2, Cd=<0.78, Cl=<328, Cr=10.5, Co=9.6, Fe=11800, Mn=128, Mo=<3.2, Ni=2.1, Se=<6.5, Sr=5.1, SO4=<328, Tl=<6.5, V=51.9 AB-37D (20-23): Surficial: pH=6.9 j, As=<6.2, Sb=<6.2, Ba=112, Be=0.16 j, B=<15.4, Cd=<0.74, Cl=<294, Cr=4.7, Co=5.8 j, Fe=15000, Mn=360, Mo=<3.1, Ni=3.1, Se=<6.2, Sr=16.3, SO4=<294, Tl=<6.2, V=38.5 AB-38D (3-5): Ash: pH=6.0 j, As=11.6, Sb=<9.2, Ba=205, Be=0.55, B=<22.9, Cd=<1.1, Cl=<441, Cr=5.7, Co=<9.2, Fe=6820, Mn=54.5, Mo=<4.6, Ni=7, Se=<9.2, Sr=66, SO4=<441, Tl=<9.2, V=9.4 AB-38D (9-10.5): Ash: pH=6.2 j, As=10.5, Sb=<9.4, Ba=172, Be=0.5, B=<23.4, Cd=<1.1, Cl=<455, Cr=5.1, Co=<9.4, Fe=4010, Mn=35.2, Mo=<4.7, Ni=4.9, Se=<9.4, Sr=59.3, SO4=<455, Tl=<9.4, V=8 j AB-38D (19-20.5): Ash: pH=6.3 j, As=<8, Sb=<8, Ba=209, Be=0.45, B=<20.1, Cd=<0.96, Cl=<412, Cr=7.4, Co=<8, Fe=12700, Mn=200, Mo=<4, Ni=<2, Se=<8, Sr=15.6, SO4=<412, Tl=<8, V=36.7 AB-38D (24-25.5): Ash: pH=6.7 j, As=<6.9, Sb=<6.9, Ba=172, Be=0.31 j, B=<17.3, Cd=<0.83, Cl=<335, Cr=5.3, Co=13.9, Fe=18300, Mn=925, Mo=<3.5, Ni=6.8, Se=<6.9, Sr=14.1, SO4=<335, Tl=<6.9, V=41.4 AB-39D (53.5-55): Surficial: pH=7.3 j, As=<7.4, Sb=<7.4, Ba=206, Be=0.43, B=<18.5, Cd=<0.89, Cl=<365, Cr=3.5, Co=17, Fe=27800, Mn=632, Mo=<3.7, Ni=<1.8, Se=<7.4, Sr=31.5, SO4=<365, Tl=<7.4, V=72.8 AB-39S (4-6): Ash: pH=6, As=32.3, Sb=<7.2, Ba=272, Be=1.4, B=<18, Cd=<0.86, Cl=<341, Cr=11.7, Co=10.2, Fe=17700, Mn=205, Mo=<3.6, Ni=10.8, Se=9.4, Sr=68.6, SO4=<341, Tl=<7.2, V=58.2 AB-39S (40-40): Ash: pH=7.6, As=28, Sb=<6.8, Ba=200, Be=1.1, B=<17, Cd=<0.81, Cl=<332, Cr=11.5, Co=3.8 j, Fe=7600, Mn=45.8, Mo=<3.4, Ni=8.1, Se=4.4 j, Sr=76.5, SO4=216 j, Tl=<6.8, V=25.7 AB-39S (45-45): Surficial: pH=8, As=66.4, Sb=<8.3, Ba=420, Be=2.6, B=17 j, Cd=<0.99, Cl=<431, Cr=25.7, Co=9.5, Fe=13100, Mn=89.4, Mo=<4.2, Ni=17.4, Se=5.7 j, Sr=269, SO4=<431, Tl=<8.3, V=57.8 BG-1D (1-2): Surficial: pH=5.8, As=<6.3, Sb=<6.3, Ba=20.5, Be=<0.32, B=<15.8, Cd=<0.76, Cl=<305, Cr=15.2, Co=13.3, Fe=35100, Mn=340, Mo=<3.2, Ni=2.2, Se=<6.3, Sr=3.3, SO4=<305, Tl=<6.3, V=78.1 BG-1D (9-10.5): Surficial: pH=5.5, As=<6.8, Sb=<6.8, Ba=42.8, Be=0.61, B=<16.9, Cd=<0.81, Cl=<357, Cr=4.6, Co=<6.8, Fe=53600, Mn=293, Mo=<3.4, Ni=<1.7, Se=<6.8, Sr=<3.4, SO4=<357, Tl=<6.8, V=143 BG-1D (19-20.5): Surficial: pH=5.3, As=<6.2, Sb=<6.2, Ba=46.2, Be=0.36, B=<15.5, Cd=<0.74, Cl=<304, Cr=14.7, Co=14.5, Fe=27600, Mn=436, Mo=<3.1, Ni=1.8, Se=<6.2, Sr=<3.1, SO4=<304, Tl=<6.2, V=68.1 BG-1D (45-50): Surficial: pH=5.7 j, As=<7.6, Sb=<7.6, Ba=203, Be=0.91, B=23.4 j+, Cd=<0.92, Cl=<363, Cr=6.2, Co=18.7, Fe=33600, Mn=1060, Mo=<3.8, Ni=5.3, Se=<7.6, Sr=10.1, SO4=<363, Tl=<7.6, V=79.3 BG-1D (56-57): Surficial: pH=6.2 j, As=<7.2, Sb=<7.2, Ba=219 j+, Be=1.6, B=48.2 j-, Cd=<0.86, Cl=<363, Cr=5.6 j-, Co=28.7 j-, Fe=51900 j-, Mn=805 j+, Mo=<3.6, Ni=12, Se=4.3 j+, Sr=27.4, SO4=<363, Tl=<7.2, V=116 j+ BG-1D (84-85.5): Surficial: pH=6.3, As=<6.1, Sb=<6.1, Ba=269, Be=1, B=<15.4, Cd=<0.74, Cl=<308, Cr=19.9, Co=17, Fe=35600, Mn=537, Mo=<3.1, Ni=16.8, Se=<6.1, Sr=62.8, SO4=<308, Tl=<6.1, V=68.1 BG-2D (1-2.5): Surficial: pH=5 j, As=<8.7, Sb=<8.7, Ba=216, Be=0.38 j, B=<21.8, Cd=<1, Cl=<423, Cr=6.7, Co=5.6 j, Fe=51300, Mn=627, Mo=<4.4, Ni=<2.2, Se=<6.5, Sr=3.9 j, SO4=<423, Tl=<8.7, V=81.6 BG-2D (8.5-10): Surficial: pH=5.4 j, As=<6.4, Sb=<6.4, Ba=208, Be=0.35, B=<16.1, Cd=<0.77, Cl=<315, Cr=3.1, Co=9.7, Fe=23100, Mn=587, Mo=<3.2, Ni=1.4 j, Se=<4.8, Sr=5.5, SO4=<315, Tl=<6.4, V=49 BG-2D (18-20): Surficial: pH=6 j, As=<7, Sb=<7, Ba=233, Be=0.95, B=<17.6, Cd=<0.84, Cl=<336, Cr=2.7, Co=19.4, Fe=32400, Mn=1340, Mo=<3.5, Ni=<1.8, Se=<5.3, Sr=16.7, SO4=<336, Tl=<7, V=77.5 BG-2D (48.5-50): Surficial: pH=6.5 j, As=<6.4, Sb=<6.4, Ba=141, Be=0.34, B=<16.1, Cd=<0.77, Cl=<304, Cr=<1.6, Co=10, Fe=16300, Mn=426, Mo=<3.2, Ni=<1.6, Se=<4.8, Sr=21.3, SO4=<304, Tl=<6.4, V=36.8 BG-2D (111-112): Bedrock: pH=NA, As=<5.2, Sb=<5.2, Ba=176, Be=<0.26, B=14.4, Cd=<0.63, Cl=NA, Cr=2.8, Co=15.6, Fe=19000, Mn=339, Mo=<2.6, Ni=3.8, Se=<5.2, Sr=16.5, SO4=NA, Tl=<5.2, V=47.8 BG-2S (48.5-50): Surficial: pH=6.5 j, As=<6.1, Sb=<6.1, Ba=161, Be=0.36, B=<15.1, Cd=<0.73, Cl=<294, Cr=1.9, Co=6.6, Fe=18200, Mn=574, Mo=<3, Ni=1.7, Se=<4.5, Sr=21.3, SO4=<294, Tl=<6.1, V=32.3 BG-2S (58.5-60): Surficial: pH=6.8 j, As=<7.3, Sb=<7.3, Ba=118, Be=0.43, B=<18.3, Cd=<0.88, Cl=<352, Cr=43.9, Co=18.3, Fe=25800, Mn=468, Mo=<3.7, Ni=25.1, Se=<5.5, Sr=40.5, SO4=<352, Tl=<7.3, V=49.2 BG-2S (66-68): Surficial: pH=6.5 j, As=<6.4, Sb=<6.4, Ba=146, Be=0.58, B=<16.1, Cd=<0.77, Cl=<312, Cr=58.1, Co=20.5, Fe=31400, Mn=522, Mo=<3.2, Ni=29.2, Se=<4.8, Sr=50, SO4=<312, Tl=<6.4, V=59.1 BG-3D (1-2.5): Surficial: pH=5.1 j, As=<3.4, Sb=<1.4, Ba=229, Be=0.85, B=<17.2, Cd=0.11 j, Cl=<345, Cr=30.9, Co=19.8, Fe=24900, Mn=712, Mo=<3.4, Ni=53.5, Se=2.3 j, Sr=12, SO4=<345, Tl=<1.4, V=48.5 BG-3D (13.5-15): Surficial: pH=5.4 j, As=<3, Sb=<1.2, Ba=109, Be=<0.36, B=<3, Cd=0.35, Cl=<311, Cr=1.7, Co=28.5, Fe=13600, Mn=962, Mo=<0.6, Ni=2.1, Se=<3, Sr=1.5, SO4=<311, Tl=<1.2, V=40.9 BG-3D (18.5-20): Surficial: pH=6.9 j, As=<1.2, Sb=<1.2, Ba=26.3, Be=0.071 j, B=<3, Cd=<0.14, Cl=<291, Cr=7.6, Co=3.9, Fe=6400, Mn=172, Mo=0.69, Ni=0.78, Se=<1.2, Sr=1.3, SO4=<291, Tl=<1.2, V=15.3 BG-3D (62-64): Surficial: pH=6.4 j, As=<3, Sb=<3, Ba=168, Be=0.26 j, B=13.4, Cd=<0.36, Cl=<295, Cr=1, Co=8.8, Fe=17800, Mn=524, Mo=<0.6, Ni=1.8, Se=<3, Sr=15.5, SO4=<295, Tl=<3, V=45.9 BG-3D (78.5-80): Surficial: pH=6.6 j, As=<3.4, Sb=<3.4, Ba=146, Be=0.3 j, B=14.6, Cd=<0.4, Cl=<326, Cr=1.5, Co=8.2, Fe=17200, Mn=397, Mo=<0.67, Ni=2.2, Se=<3.4, Sr=18.3, SO4=<326, Tl=<3.4, V=54 BG-3D (83-85): Surficial: pH=7.5 j, As=0.68 j, Sb=<1.2, Ba=130j, Be=0.16, B=<2.9, Cd=<0.14, Cl=<297, Cr=1.6, Co=6.7, Fe=12300, Mn=376 j, Mo=<0.59, Ni=0.93, Se=<1.2, Sr=17.3, SO4=<297, Tl=<1.2, V=34.5j BGSB-BG-1 (4-5): Surficial: pH=5.46, As=1.9 B, Sb=<0.53, Ba=18, Be=0.61, B=<2.8, Cd=<0.027, Cl=<12, Cr=8.7, Co=1.9, Fe=41000, Mn=170, Mo=<2.2, Ni=4.4, Se=0.59 j, Sr=1 j, SO4=<12, Tl=0.14, V=91 BGSB-BG-1 (14-15): Surficial: pH=5.28, As=1 B, Sb=<0.57, Ba=89, Be=0.97, B=<2.5, Cd=0.064, Cl=<12, Cr=3.4, Co=43, Fe=20000, Mn=740, Mo=<2, Ni=3.7, Se=0.34 j, Sr=1.4, SO4=<12, Tl=0.43, V=73 BGSB-BG-1 (24-25): Surficial: pH=5.99, As=0.94 B, Sb=<0.59, Ba=180, Be=1.8, B=<6.8, Cd=0.038, Cl=<14, Cr=17, Co=53, Fe=58000, Mn=1700, Mo=<5.4, Ni=22, Se=0.49 j, Sr=1.5 j, SO4=<14, Tl=0.31, V=130 BGSB-BG-2 (4-5): Surficial: pH=5.36, As=1.5 B,M, Sb=0.12 j,M, Ba=120, Be=0.91 M, B=<3.2 M, Cd=<0.031, Cl=7 j, Cr=6.9, Co=8.8, Fe=40000 M, Mn=400, Mo=<2.5 M, Ni=5.9, Se=0.5 j, Sr=6.2, SO4=<13 M, Tl=0.26, V=93 M BGSB-BG-2 (14-15): Surficial: pH=5.36, As=0.7 B, Sb=0.25 j, Ba=190, Be=0.55, B=<2.9, Cd=<0.026, Cl=2.5 j, Cr=2.8, Co=13, Fe=20000, Mn=620, Mo=<2.3, Ni=2.7, Se=<1.4, Sr=9, SO4=<12 M, Tl=0.27, V=57 BGSB-BG-2 (24-25): Surficial: pH=5.21, As=0.78 B, Sb=<0.56, Ba=190, Be=1.1, B=<2.8, Cd=0.02 j, Cl=4.6 j, Cr=2.6, Co=12, Fe=18000, Mn=570, Mo=<2.3, Ni=2.7, Se=<1.5, Sr=14, SO4=<12, Tl=0.29, V=72 BGSB-BG-3 (4-5): Surficial: pH=5.07, As=1.7 B, Sb=<0.61, Ba=180, Be=1.9, B=<17, Cd=0.045, Cl=<14, Cr=71, Co=59, Fe=52000, Mn=1200, Mo=<14, Ni=67, Se=0.6 j, Sr=6.2 j, SO4=<14, Tl=0.33, V=88 BGSB-BG-3 (24-25): Surficial: pH=5.33, As=0.9 B, Sb=<0.55, Ba=120, Be=0.81, B=<2.8, Cd=<0.028, Cl=<12, Cr=2.3, Co=17, Fe=17000, Mn=400, Mo=<2.2, Ni=2.6, Se=0.34 j, Sr=2.9, SO4=<12, Tl=0.3, V=66 BGSB-BG-3 (34-35): Surficial: pH=5.82, As=0.96 B, Sb=<0.56, Ba=180, Be=0.9, B=<5.6, Cd=0.036, Cl=<11, Cr=2.3, Co=11, Fe=18000, Mn=820, Mo=<4.5, Ni=1.9 j, Se=0.3 j, Sr=17, SO4=<11, Tl=0.21, V=67 BGSB-GWA-23 (4-5): Surficial: pH=4.82, As=1.9 B, Sb=<0.54, Ba=22, Be=0.54, B=<2.7, Cd=<0.027, Cl=<13, Cr=7.1, Co=1.9, Fe=26000, Mn=110, Mo=<2.2, Ni=3.5, Se=0.5 j, Sr=0.81 j, SO4=<13, Tl=0.14, V=77 BGSB-GWA-23 (14-15): Surficial: pH=5.17, As=1.1 B, Sb=<0.67, Ba=76, Be=0.9, B=<2.7, Cd=<0.033, Cl=<14, Cr=1.3, Co=28, Fe=13000, Mn=410, Mo=<2.2, Ni=4.3, Se=<1.7, Sr=0.67 j, SO4=<14, Tl=0.19, V=54 BGSB-GWA-23 (21-22): Surficial: pH=5.29, As=0.82 B, Sb=<0.6, Ba=100, Be=0.85, B=<6.1, Cd=<0.03, Cl=<13, Cr=2.5, Co=12, Fe=18000, Mn=590, Mo=<4.9, Ni=2.5 j, Se=0.35 j, Sr=0.99 j, SO4=<13, Tl=0.28, V=53 GWA-1D (8.5-10): Surficial: pH=5.5 j, As=<6.7, Sb=<6.7, Ba=37.5, Be=0.3 j, B=<16.7, Cd=<0.8, Cl=<328, Cr=21.7, Co=<6.7, Fe=40100, Mn=186, Mo=<3.3, Ni=<1.7, Se=3.4 j, Sr=<3.3, SO4=<328, Tl=<6.7, V=104 GWA-1D (13.5-15): Surficial: pH=5.3 j, As=<8.8, Sb=<8.8, Ba=126, Be=0.74, B=<21.9, Cd=<1.1, Cl=<415, Cr=10.2, Co=7.4 j, Fe=37300, Mn=410, Mo=<4.4, Ni=2.5, Se=3.5 j, Sr=<4.4, SO4=<415, Tl=<8.8, V=136 GWA-1D (68.5-70): Bedrock: pH=7.0 j, As=<6.9, Sb=<6.9, Ba=158, Be=0.39, B=<17.3, Cd=<0.83, Cl=<337, Cr=18.3, Co=8.9, Fe=16400, Mn=551, Mo=<3.5, Ni=12.3, Se=<5.2, Sr=18.1, SO4=<337, Tl=<6.9, V=40.7 GWA-1D (81-82): Bedrock: pH=NA, As=<5.4, Sb=<5.4, Ba=115, Be=<0.27, B=13.9, Cd=<0.65, Cl=NA, Cr=5, Co=8.2, Fe=18200, Mn=412, Mo=<2.7, Ni=4.7, Se=<5.4, Sr=15.3, SO4=NA, Tl=<5.4, V=46.3 GWA-1S (18-20): Surficial: pH=NA, As=NA, Sb=NA, Ba=NA, Be=NA, B=NA, Cd=NA, Cl=NA, Cr=NA, Co=NA, Fe=NA, Mn=NA, Mo=NA, Ni=NA, Se=NA, Sr=NA, SO4=NA, Tl=NA, V=NA GWA-2D (13.5-15): Surficial: pH=5.6, As=<8.1, Sb=<8.1, Ba=246, Be=0.77, B=<20.2, Cd=<0.98, Cl=<415, Cr=7, Co=8.2, Fe=40600, Mn=433, Mo=<4, Ni=6, Se=<8.1, Sr=5.8, SO4=<415, Tl=<8.1, V=59.6 GWA-2D (23.5-25): Surficial: pH=5.9, As=<6.8, Sb=<6.8, Ba=218, Be=0.74, B=<16.3, Cd=<0.81, Cl=<333, Cr=7, Co=10, Fe=28100, Mn=482, Mo=<3.3, Ni=5.7, Se=<6.8, Sr=10.2, SO4=<333, Tl=<6.8, V=54.7 GWA-2D (33.5-35): Surficial: pH=6.1, As=<6.3, Sb=<6.3, Ba=222, Be=0.72, B=<15.4, Cd=<0.75, Cl=<320, Cr=4.2, Co=10.2, Fe=23000, Mn=496, Mo=<3.1, Ni=4.5, Se=<6.3, Sr=14.7, SO4=<320, Tl=<6.3, V=52.9 GWA-3BR (8.5-10): Surficial: pH=5.3 j, As=<7.3, Sb=<7.3, Ba=81.4, Be=0.27 j, B=<18.3, Cd=<0.88, Cl=<360, Cr=5.7, Co=12.7, Fe=23700, Mn=309, Mo=<3.7, Ni=2.1, Se=<7.3, Sr=10.5, SO4=<360, Tl=<7.3, V=64.2 GWA-3BR (13.5-15): Surficial: pH=5.4 j, As=<6.5, Sb=<6.5, Ba=69.2, Be=0.31 j, B=<16.2, Cd=<0.78, Cl=<329, Cr=3.5, Co=7.9, Fe=18700, Mn=468, Mo=<3.2, Ni=<1.6, Se=<6.5, Sr=9.2, SO4=<329, Tl=<6.5, V=45.3 GWA-3BR (58.5-60): Surficial: pH=6.7 j, As=<6.3, Sb=<6.3, Ba=80.2, Be=0.19 j, B=<15.7, Cd=<0.75, Cl=<303, Cr=1.9, Co=5.2 j, Fe=13800, Mn=451, Mo=<3.1, Ni=1.4 j, Se=<6.3, Sr=25.8, SO4=<303, Tl=<6.3, V=30.5 GWA-3BR (147.5-147.5): Bedrock: pH=7.1 j, As=<6, Sb=<6, Ba=32 j+, Be=<0.06, B=4.3 j+, Cd=<0.72, Cl=<299, Cr=0.63, Co=3.9 j-, Fe=8180 j-, Mn=213 j+, Mo=<0.6, Ni=0.8, Se=<6, Sr=6.2 j+, SO4=<299, Tl=<6, V=16.1 j+ GWA-4D (58-65): Surficial: pH=6.7 j, As=<5.8, Sb=<5.8, Ba=112, Be=0.21 j, B=17.4, Cd=<0.7, Cl=<279, Cr=6.6, Co=9.1, Fe=21000, Mn=531, Mo=<2.9, Ni=4.2, Se=<5.8, Sr=26.3, SO4=<279, Tl=<5.8, V=50.4 GWA-4S (6.5-8.5): Surficial: pH=5.1 j, As=5.5 j, Sb=<6.5, Ba=34.5, Be=0.71, B=26.7, Cd=<0.78, Cl=<323, Cr=18.6, Co=6.2 j, Fe=44200, Mn=156, Mo=<3.3, Ni=6.6, Se=<6.5, Sr=3 j, SO4=<323, Tl=<6.5, V=107 GWA-4S (8-10): Surficial: pH=6.0 j, As=<7.4, Sb=<7.4, Ba=121, Be=0.43, B=19.3, Cd=<0.89, Cl=<377, Cr=14.1, Co=9.3, Fe=24600, Mn=622, Mo=<3.7, Ni=3.8, Se=<7.4, Sr=5.8, SO4=<377, Tl=<7.4, V=73 RAB ASH LANDFILL COMPLIANCE BOUNDARY GWA-5D (2-4): Surficial: pH=5.7 j, As=<6.2, Sb=<6.2, Ba=143, Be=0.75, B=<15.5, Cd=<0.74, Cl=<292, Cr=9.5, Co=16.2, Fe=24200, Mn=578, Mo=<3.1, Ni=6.2, Se=2.5 j, Sr=7, SO4=489, Tl=<6.2, V=70.8 GWA-5D (13.5-15): Surficial: pH=5.4 j, As=<6.4, Sb=<6.4, Ba=49.5, Be=0.28 j, B=<16, Cd=<0.77, Cl=<302, Cr=10.6, Co=4.7 j, Fe=25800, Mn=226, Mo=<3.2, Ni=1.2 j, Se=<4.8, Sr=<3.2, SO4=171 j, Tl=<6.4, V=54.9 GWA-5D (83.5-85): Surficial: pH=7.1 j, As=<6.2, Sb=<6.2, Ba=79.1, Be=<0.31, B=<15.6, Cd=<0.75, Cl=<295, Cr=3.1, Co=5.2 j, Fe=14000, Mn=301, Mo=<3.1, Ni=1.1 j, Se=<4.7, Sr=13.7, SO4=<295, Tl=<6.2, V=33.9 GWA-5D (119-120): Bedrock: pH=NA, As=<5.3, Sb=<5.3, Ba=169, Be=<0.27, B=17.3, Cd=<0.64, Cl=NA, Cr=1.7, Co=12, Fe=24200, Mn=506, Mo=<2.7, Ni=1.7, Se=<5.3, Sr=17.5, SO4=NA, Tl=<5.3, V=65 GWA-5S (24-26): Surficial: pH=NA, As=NA, Sb=NA, Ba=NA, Be=NA, B=NA, Cd=NA, Cl=NA, Cr=NA, Co=NA, Fe=NA, Mn=NA, Mo=NA, Ni=NA, Se=NA, Sr=NA, SO4=NA, Tl=NA, V=NA GWA-6D (28.5-30): Surficial: pH=3.6 j, As=2.1 j, Sb=<3.4, Ba=145, Be=0.41, B=15.7, Cd=<0.4, Cl=<332, Cr=2.3, Co=21.7, Fe=18600, Mn=1350, Mo=<0.67, Ni=6.3, Se=1.8 j, Sr=7.9, SO4=745, Tl=<3.4, V=56.4 GWA-6D (33.5-35): Surficial: pH=3.8 j, As=3.1 j, Sb=<3.7, Ba=155, Be=0.94, B=28.5, Cd=<0.45, Cl=<373, Cr=3.6, Co=39.5, Fe=30700, Mn=1990, Mo=<0.75, Ni=6.5, Se=3.2 j, Sr=9.8, SO4=1590, Tl=<3.7, V=95.3 GWA-6D (88.5-105.5): Surficial: pH=6.2 j, As=<3, Sb=<3, Ba=176, Be=<0.36, B=14.2, Cd=<0.36, Cl=<283, Cr=3.6, Co=8.4, Fe=17500, Mn=370, Mo=<0.59, Ni=3.8, Se=<3, Sr=22.1, SO4=<283, Tl=<3, V=53.7 GWA-6BR (129-130): Bedrock: pH=6.8 j, As=<4.9, Sb=<4.9, Ba=188, Be=<0.25, B=<12.4, Cd=<0.59, Cl=<248, Cr=2.2, Co=8.9, Fe=20200, Mn=603, Mo=<2.5, Ni=0.95 j, Se=<4.9, Sr=13.8, SO4=<248, Tl=<4.9, V=41.8 GWA-7D (22-23.5): Surficial: pH=4.7 j, As=0.69 j, Sb=<1.3, Ba=130, Be=0.26, B=<3.3, Cd=<0.16, Cl=<332, Cr=1.1, Co=17.4, Fe=13500, Mn=1020, Mo=<0.66, Ni=1, Se=1.1 j, Sr=1.5, SO4=<332, Tl=<1.3, V=33 GWA-7D (32-33.5): Surficial: pH=5.7 j, As=0.82 j, Sb=<1.4, Ba=153, Be=0.28 j, B=<3.6, Cd=<0.17, Cl=<355, Cr=1.2, Co=12.1, Fe=15500, Mn=1280, Mo=<0.71, Ni=1.2, Se=0.85 j, Sr=2.7, SO4=<355, Tl=<1.4, V=40 GWA-7D (107-123): Surficial: pH=7.2 j, As=0.77 j, Sb=<1.2, Ba=98.8, Be=0.19, B=<2.9, Cd=<0.14, Cl=<288, Cr=3.4, Co=7, Fe=13400, Mn=450, Mo=<0.58, Ni=1.2, Se=<1.2, Sr=14.3, SO4=<288, Tl=<1.2, V=35.6 GWA-8D (38.5-40): Surficial: pH=6.2, As=<3.7, Sb=<1.5, Ba=136, Be=1.3, B=41.3, Cd=<0.18, Cl=<372, Cr=47.3, Co=32.6, Fe=44300 j+, Mn=1190, Mo=<0.75, Ni=20.8, Se=<3.7, Sr=<7.5, SO4=<372, Tl=<1.5, V=90 GWA-8D (48.5-50): Surficial: pH=5.9, As=<3.6, Sb=<1.5, Ba=211, Be=1.5, B=42.5, Cd=<0.18, Cl=<375, Cr=48.8, Co=39.8, Fe=43000 j+, Mn=1280, Mo=<7.3, Ni=50.6, Se=<3.6, Sr=<7.3, SO4=<375, Tl=<1.5, V=89.9 GWA-8D (88.5-90): Surficial: pH=7.1, As=<1.2, Sb=<1.2, Ba=205, Be=0.42, B=14.3, Cd=<0.14, Cl=<312, Cr=28.7, Co=14.7, Fe=19300 j+, Mn=350, Mo=<0.6, Ni=31, Se=<1.2, Sr=38.6, SO4=<312, Tl=<1.2, V=50.6 GWA-9S (4-6): Surficial: pH=9.1 j, As=<7.2, Sb=<7.2, Ba=202, Be=0.53, B=<18.1, Cd=<0.87, Cl=<363, Cr=2.6, Co=12.7, Fe=25600, Mn=652, Mo=<3.6, Ni=2.1, Se=<7.2, Sr=17, SO4=<363, Tl=<7.2, V=63.3 GWA-9S (14-16): Surficial: pH=4.9 j, As=<7.5, Sb=<7.5, Ba=223, Be=0.63, B=<18.7, Cd=<0.9, Cl=<365, Cr=2.7, Co=14.2, Fe=29200, Mn=755, Mo=<3.7, Ni=1.8 j, Se=<7.5, Sr=18.1, SO4=<365, Tl=<7.5, V=71.7 GWA-9S (72-74): Surficial: pH=6.4 j, As=<6.3, Sb=<6.3, Ba=186, Be=0.26 j, B=<15.6, Cd=<0.75, Cl=<300, Cr=10.2, Co=21.8, Fe=30800, Mn=1390, Mo=<3.1, Ni=24.2, Se=<6.3, Sr=52.2, SO4=<300, Tl=<6.3, V=69.8 GWA-14D (0-2): Surficial: pH=6.8, As=<7.2, Sb=<7.2, Ba=17.3, Be=<0.36, B=<18, Cd=<0.86, Cl=<355, Cr=18.6, Co=<7.2, Fe=40400, Mn=186, Mo=<3.6, Ni=4, Se=<7.2, Sr=5.1, SO4=<355, Tl=<7.2, V=101 GWA-14D (10-12): Surficial: pH=5.1, As=<9.2, Sb=<9.2, Ba=84.3, Be=<0.46, B=<23.1, Cd=<1.1, Cl=<437, Cr=4.9, Co=5.7 j, Fe=34700, Mn=501, Mo=<4.6, Ni=5.1, Se=<9.2, Sr=<4.6, SO4=<437, Tl=<9.2, V=89.8 GWA-14D (18-20): Surficial: pH=5.3, As=<7.1, Sb=<7.1, Ba=206, Be=0.39, B=<17.8, Cd=<0.85, Cl=<358, Cr=7.6, Co=20.7, Fe=30400, Mn=454, Mo=<3.6, Ni=5, Se=<7.1, Sr=<3.6, SO4=<358, Tl=<7.1, V=85.5 GWA-14D (28-30): Surficial: pH=5.1, As=<8.5, Sb=<8.5, Ba=257, Be=0.49, B=<21.2, Cd=<1, Cl=<422, Cr=2.4, Co=25.7, Fe=26400, Mn=753, Mo=<4.2, Ni=6.8, Se=<8.5, Sr=2.2 j, SO4=<422, Tl=<8.5, V=66.4 GWA-14D (83-85): Surficial: pH=6.8, As=<7.3, Sb=<7.3, Ba=144, Be=0.26 j, B=<18.1, Cd=<0.87, Cl=<350, Cr=4.1, Co=7.4, Fe=18900, Mn=554, Mo=<3.6, Ni=6.5, Se=<7.3, Sr=14.8, SO4=<350, Tl=<7.3, V=43.1 GWA-15D (1.9-2): Surficial: pH=7, As=<7.2, Sb=<7.2, Ba=55.9, Be=<0.36, B=<18, Cd=<0.86, Cl=<374, Cr=10.1, Co=3.8 j, Fe=22400, Mn=302, Mo=<3.6, Ni=3.6, Se=<7.2, Sr=6.2, SO4=<374, Tl=<7.2, V=57.4 GWA-15D (9-11): Surficial: pH=6, As=<6, Sb=<6, Ba=45.9, Be=0.78, B=<15.1, Cd=<0.72, Cl=<308, Cr=17, Co=6.3, Fe=21400, Mn=131, Mo=<3, Ni=12.8, Se=<6, Sr=18.6, SO4=<308, Tl=<6, V=112 GWA-15D (19-21): Surficial: pH=6.6, As=<6.8, Sb=<6.8, Ba=124, Be=0.46, B=<17.1, Cd=<0.82, Cl=<344, Cr=112, Co=23.4, Fe=24400, Mn=536, Mo=<3.4, Ni=95.1, Se=<6.8, Sr=93.5, SO4=<344, Tl=<6.8, V=42.3 GWA-15D (29-31): Surficial: pH=6.8, As=<10.7, Sb=<10.7, Ba=244, Be=0.33 j, B=<26.8, Cd=<1.3, Cl=<540, Cr=6.6, Co=14.2, Fe=35100, Mn=1070, Mo=<5.4, Ni=10.5, Se=<10.7, Sr=37.3, SO4=<540, Tl=<10.7, V=90.5 GWA-15D (66-68): Surficial: pH=7.5, As=<6.2, Sb=<6.2, Ba=115, Be=<0.31, B=<15.4, Cd=<0.74, Cl=<301, Cr=4.1, Co=7.5, Fe=19200, Mn=569, Mo=<3.1, Ni=3.6, Se=<6.2, Sr=20.1, SO4=<301, Tl=<6.2, V=38.7 SB-1 (3-5): Surficial: pH=7.2 j, As=44.5, Sb=<1.4, Ba=243 j-, Be=1.6, B=10.1, Cd=0.27, Cl=<357, Cr=11.8, Co=5.2, Fe=4320 j+, Mn=41.2 j+, Mo=1.1, Ni=9.8, Se=2, Sr=176, SO4=<357, Tl=<1.4, V=40.2 SB-1 (33.5-35): Ash: pH=7.1 j, As=22.2, Sb=<2, Ba=105 j-, Be=0.36, B=<5, Cd=<0.24, Cl=<489, Cr=3.5, Co=2.1, Fe=4890 j+, Mn=32.4 j+, Mo=<1, Ni=4.8, Se=2.3, Sr=39.9, SO4=<489, Tl=<2, V=9.8 SB-1 (33.5-35): Ash: pH=7.1 j, As=22.2, Sb=<2, Ba=105 j-, Be=0.36, B=<5, Cd=<0.24, Cl=<489, Cr=3.5, Co=2.1, Fe=4890 j+, Mn=32.4 j+, Mo=<1, Ni=4.8, Se=2.3, Sr=39.9, SO4=<489, Tl=<2, V=9.8 SB-1 (33.5-35): Ash: pH=7.1 j, As=22.2, Sb=<2, Ba=105 j-, Be=0.36, B=<5, Cd=<0.24, Cl=<489, Cr=3.5, Co=2.1, Fe=4890 j+, Mn=32.4 j+, Mo=<1, Ni=4.8, Se=2.3, Sr=39.9, SO4=<489, Tl=<2, V=9.8 SB-2 (18.5-20): Surficial: pH=5.5, As=<7, Sb=<3.5, Ba=215, Be=0.61, B=40.7, Cd=<0.84, Cl=<345, Cr=3.8, Co=30.1, Fe=39800, Mn=1640, Mo=<7, Ni=3.2 j, Se=<7, Sr=1.2, SO4=<345, Tl=<3.5, V=87.3 SB-2 (23.5-25): Surficial: pH=5.3, As=<3.2, Sb=<3.2, Ba=119, Be=0.21 j, B=4.8, Cd=<0.38, Cl=<311, Cr=3.4, Co=7.2, Fe=5060, Mn=455, Mo=<0.63, Ni=1.8, Se=<3.2, Sr=3.5, SO4=<311, Tl=<3.2, V=13.2 SB-2 (33.5-35): Surficial: pH=5.6, As=<3.6, Sb=<3.6, Ba=183, Be=2, B=78.5 j, Cd=<0.43, Cl=<357, Cr=5.2, Co=24.6, Fe=73400, Mn=800, Mo=<3.6, Ni=28.7, Se=<3.6, Sr=46.9, SO4=<357, Tl=<3.6, V=191 SB-3 (3-5): Ash: pH=6.9, As=44.8, Sb=<3.1, Ba=244, Be=1.5, B=15.3, Cd=0.26 j, Cl=<306, Cr=12.9, Co=6.6, Fe=6800, Mn=59.3, Mo=1.5, Ni=11.6, Se=3.7, Sr=158, SO4=<306, Tl=<3.1, V=43.9 SB-3 (33.5-35): Ash: pH=7.4, As=26.8, Sb=<3.4, Ba=275, Be=1.5, B=7.2, Cd=<0.41, Cl=<340, Cr=15.1, Co=8, Fe=10900, Mn=115, Mo=0.73, Ni=12.3, Se=3.7, Sr=148, SO4=<340, Tl=<3.4, V=43.6 SB-3 (43.5-45): Surficial: pH=6.3, As=8.4, Sb=<3.6, Ba=108, Be=0.67, B=21.2 j, Cd=<0.44, Cl=<355, Cr=7.4, Co=9.8, Fe=11700, Mn=285, Mo=<7.3, Ni=3.5 j, Se=<3.6, Sr=22.5, SO4=<355, Tl=<3.6, V=49 SB-3 (53.5-55): Surficial: pH=7.1, As=5.7, Sb=<3.2, Ba=105, Be=0.63, B=17.7 j, Cd=<0.4, Cl=<324, Cr=<3.2, Co=2.7 j, Fe=15700, Mn=375, Mo=<6.5, Ni=<3.2, Se=7, Sr=13, SO4=<324, Tl=<3.2, V=38.4 SB-4 (3-5): Ash: pH=7.2, As=30.3, Sb=<3.2, Ba=286, Be=1.4, B=12.5, Cd=<0.38, Cl=<316, Cr=6.5, Co=5, Fe=4600, Mn=43.6, Mo=2, Ni=8.8, Se=10.5, Sr=64.7, SO4=<316, Tl=<3.2, V=24.3 SB-4 (10-11): Ash: pH=7.2, As=50.7, Sb=<3.3, Ba=559, Be=2.4, B=8.5, Cd=<0.4, Cl=<333, Cr=10, Co=7.7, Fe=8560, Mn=72.3, Mo=1.5, Ni=11.8, Se=19.2, Sr=113, SO4=<333, Tl=<3.3, V=30.8 SB-4 (25-26.5): Surficial: pH=6, As=<3.7, Sb=<3.7, Ba=36.5, Be=0.47, B=45.7, Cd=<0.44, Cl=<367, Cr=31.1, Co=7.9, Fe=46600, Mn=476, Mo=<7.4, Ni=4.6, Se=<3.7, Sr=0.6 j, SO4=<367, Tl=<3.7, V=70 SB-4 (30-31.5): Surficial: pH=3.9, As=<8.8, Sb=<4.4, Ba=188, Be=0.94, B=63.4, Cd=<1.1, Cl=<434, Cr=94.6, Co=38, Fe=61700, Mn=1710, Mo=<8.8, Ni=35.4, Se=4.7 j, Sr=13.6, SO4=692, Tl=<4.4, V=97.8 SB-5 (3-5): Ash: pH=5.7, As=20.8, Sb=<2.9, Ba=236, Be=1.1, B=18.6, Cd=<0.35, Cl=<294, Cr=8.3, Co=8.2, Fe=10800, Mn=202, Mo=1.5, Ni=7.7, Se=5.3, Sr=58.7, SO4=177 j, Tl=<2.9, V=49.1 SB-5 (38.5-40): Surficial: pH=7.7, As=10.3, Sb=<3.1, Ba=144, Be=0.64, B=4.6, Cd=<0.37, Cl=<307, Cr=6.2, Co=3.2, Fe=6240, Mn=35, Mo=1.1, Ni=6.9, Se=11.6, Sr=63.6, SO4=<307, Tl=<3.1, V=20.1 SB-5 (43.5-45): Surficial: pH=5.5, As=2 j, Sb=<3.3, Ba=6.5, Be=<0.39, B=47.6, Cd=<0.39, Cl=<326, Cr=20.8, Co=<3.3, Fe=45700, Mn=121, Mo=<6.6, Ni=<3.3, Se=<3.3, Sr=2.6, SO4=<326, Tl=<3.3, V=101 SB-5 (53.5-55): Surficial: pH=5.5, As=<3.9, Sb=<3.9, Ba=143, Be=0.49, B=34 j, Cd=<0.47, Cl=<383, Cr=5.2, Co=34.4, Fe=23200, Mn=1300, Mo=<7.8, Ni=3.6 j, Se=<3.9, Sr=0.95, SO4=<383, Tl=<3.9, V=78.3 SB-6 (3-5): Ash: pH=5.6 j, As=32.3, Sb=<1.3, Ba=358 j-, Be=1.6, B=7.7, Cd=<0.16, Cl=<308, Cr=9.6, Co=5.4, Fe=8310 j+, Mn=93.5 j+, Mo=2.2, Ni=9.7, Se=13.8, Sr=74.3, SO4=<308, Tl=<1.3, V=34.9 SB-6 (68.5-70): Ash: pH=7.4 j, As=2.1, Sb=<1.4, Ba=36.4 j-, Be=0.25, B=<3.6, Cd=<0.17, Cl=<348, Cr=16.7, Co=2.3, Fe=23700 j+, Mn=53.4 j+, Mo=<0.72, Ni=1.1, Se=<1.4, Sr=11.6, SO4=<348, Tl=<1.4, V=58.2 SB-6 (78.5-80): Surficial: pH=6.5 j, As=<1.2, Sb=<1.2, Ba=46.1 j-, Be=0.23, B=<3, Cd=<0.15, Cl=<306, Cr=4.7, Co=2, Fe=5720 j+, Mn=29.1 j+, Mo=<0.61, Ni=0.7, Se=<1.2, Sr=21.5, SO4=<306, Tl=<1.2, V=22.2 SB-6 (83.5-85): Surficial: pH=7.3 j, As=1.9, Sb=<1.2, Ba=130 j-, Be=0.43, B=<3.1, Cd=<0.15, Cl=<321, Cr=3.5, Co=10.8, Fe=20200 j+, Mn=407 j+, Mo=<0.62, Ni=3.1, Se=<1.2, Sr=20, SO4=<321, Tl=<1.2, V=61.5 SB-7 (8.5-10): Surficial: pH=4.0 j, As=15.2, Sb=<3.2, Ba=96.4, Be=<0.64, B=<32, Cd=<0.38, Cl=<314, Cr=7.6, Co=6.5, Fe=43000, Mn=407, Mo=0.37 j, Ni=2.7, Se=3.4, Sr=13.5, SO4=1650, Tl=<3.2, V=43.8 SB-7 (13.5-15): Surficial: pH=4.9 j, As=<3.3, Sb=<3.3, Ba=143, Be=0.4 j, B=<32.6, Cd=<0.39, Cl=<341, Cr=3.9, Co=12.6, Fe=18800, Mn=784, Mo=<0.65, Ni=2.1, Se=<3.3, Sr=1.8, SO4=<341, Tl=<3.3, V=47.6 SB-8 (3-5): Ash: pH=6.3, As=36.1, Sb=<8.2, Ba=229, Be=2.8, B=19.7 j, Cd=<0.98, Cl=<410, Cr=14.9, Co=9.6, Fe=5990, Mn=31.9, Mo=<4.1, Ni=18.1, Se=<8.2, Sr=174, SO4=<410, Tl=<8.2, V=51.1 SB-8 (28.5-30): Ash: pH=8, As=36.7, Sb=<6.6, Ba=224, Be=1.6, B=13.4 j, Cd=<0.79, Cl=<337, Cr=13.6, Co=5.8 j, Fe=7500, Mn=49.8, Mo=<3.3, Ni=11.5, Se=<6.6, Sr=161, SO4=<337, Tl=<6.6, V=39.1 SB-08 (33.5-35): Surficial: pH=5.3, As=36, Sb=<7.7, Ba=189, Be=1.3, B=10.7 j, Cd=<0.93, Cl=<369, Cr=13.7, Co=7.6 j, Fe=19300, Mn=157, Mo=<3.9, Ni=9.7, Se=<7.7, Sr=106, SO4=187 j, Tl=<7.7, V=61.2 SB-8 (43.5-45): Surficial: pH=5.7, As=<8.1, Sb=<8.1, Ba=194, Be=1.1, B=<20.2, Cd=<0.97, Cl=<398, Cr=20.7, Co=29.4, Fe=31800, Mn=1040, Mo=<4, Ni=13.9, Se=<8.1, Sr=8.6, SO4=<398, Tl=<8.1, V=81.7 SB-9 (3-5): Ash: pH=6.6, As=36.8, Sb=<7.3, Ba=206, Be=2.3, B=20, Cd=<0.87, Cl=<379, Cr=15, Co=9, Fe=5430, Mn=33.7, Mo=2.6 j, Ni=14.8, Se=17.8, Sr=109, SO4=<379, Tl=<7.3, V=49.4 SB-9 (38.5-45): Ash: pH=8.2, As=29.4, Sb=<7.3, Ba=220, Be=1.6, B=11 j, Cd=<0.88, Cl=<359, Cr=13.8, Co=5.6 j, Fe=6110, Mn=63.2, Mo=<3.7, Ni=10.8, Se=<7.3, Sr=183, SO4=<359, Tl=<7.3, V=43.1 SB-9 (53.5-60): Surficial: pH=5.5, As=<7.7, Sb=<7.7, Ba=129, Be=0.4, B=<19.3, Cd=<0.93, Cl=<378, Cr=3.9, Co=14.8, Fe=21800, Mn=855, Mo=3.8 j, Ni=7.5, Se=<7.7, Sr=19.4, SO4=<378, Tl=<7.7, V=55.5 SB-9 (63.5-65): Surficial: pH=4.8, As=<7.8, Sb=<7.8, Ba=102, Be=0.45, B=<19.4, Cd=<0.93, Cl=<381, Cr=2.7, Co=10.7, Fe=22000, Mn=554, Mo=<3.9, Ni=3.9, Se=<7.8, Sr=10.3, SO4=<381, Tl=<7.8, V=51.3 S-1: pH=6.6 j, As=<7.1, Sb=<7.1, Ba=40.6, Be=<0.35, B=<17.7, Cd=<0.85, Cl=<341, Cr=10.4, Co=6.5 j, Fe=14200, Mn=330, Mo=<3.5, Ni=1.9, Se=<7.1, Sr=3.8, SO4=<341, Tl=<7.1, V=41.1 S-2: pH=5.6 j, As=<10.3, Sb=<10.3, Ba=126, Be=0.44 j, B=18.3 j, Cd=<1.2, Cl=<524, Cr=16.4, Co=30.1, Fe=26500, Mn=824, Mo=<5.2, Ni=14.9, Se=<10.3, Sr=13.5, SO4=<524, Tl=<10.3, V=47.6 S-3: pH=6.7 j, As=<12.9, Sb=<12.9, Ba=92, Be=<0.65, B=<32.4, Cd=<1.6, Cl=<614, Cr=6.8, Co=13.4, Fe=16600, Mn=310, Mo=<6.5, Ni=5.2, Se=<12.9, Sr=14.2, SO4=<614, Tl=<12.9, V=46 S-4: pH=6.6 j, As=<15, Sb=<15, Ba=98.7, Be=<0.75, B=20.5 j, Cd=<1.8, Cl=<707, Cr=14.8, Co=16.1, Fe=25400, Mn=1510, Mo=<7.5, Ni=11.9, Se=<15, Sr=25.8, SO4=<707, Tl=<15, V=65.3 S-5: pH=5.4 j, As=<6.8, Sb=<6.8, Ba=12.5, Be=<0.34, B=<17.1, Cd=<0.82, Cl=<332, Cr=6.4, Co=5.4 j, Fe=6420, Mn=119, Mo=<3.4, Ni=1.4 j, Se=<6.8, Sr=<3.4, SO4=<332, Tl=<6.8, V=20.2 S-6: pH=5.8 j, As=<6.5, Sb=<6.5, Ba=32.5, Be=<0.33, B=<16.3, Cd=<0.78, Cl=<321, Cr=5.8, Co=5.2 j, Fe=4520, Mn=162, Mo=<3.3, Ni=<1.6, Se=<6.5, Sr=1.7 j, SO4=<321, Tl=<6.5, V=11.1 S-7: pH=6.2 j, As=<6.8, Sb=<6.8, Ba=65.7, Be=<0.34, B=<17.1, Cd=<0.82, Cl=<362, Cr=3.8, Co=5.4 j, Fe=6680, Mn=293, Mo=<3.4, Ni=<1.7, Se=<6.8, Sr=4.5, SO4=<362, Tl=<6.8, V=19.5 BG-1S BG-1DA OW-6 OW-5 OW-4 OW-3 OW-2 OW-8 OW-1 OW-7 OW-6 AB-23BRU AB-25BRU GWA-24SGWA-24BR GWA-24SA GWA-6BRGWA-6D CCR-BG-1D CCR-BG-1DA CCR-11DA CCR-22DA CCR-22D DATA NOTES: DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFER TO ANALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DATA SHOWN ON MAP IS THE MOST RECENT DATA AVAILABLE THROUGH Q2 2017. NA=NOT ANALYZED NM=NOT MEASURED SOIL OR SEDIMENT ID (INTERVAL IN ft. bgs): FLOW LAYER, pH (S.U.), As=Arsenic (mg/kg): Ba=Barium (mg/kg): B= Boron (mg/kg): Cr (VI)=Hexavalent Chromium (mg/kg): Cr=Total Chromium (mg/kg): Co=Cobalt (mg/kg): Fe=Iron (mg/kg): Mn=Manganese (mg/kg): Mo=Molybdenum (mg/kg): Ni=Nickel (mg/L): Sb=Antimony(mg/kg): Sr=Strontium (mg/kg): SO4=Sulfate (mg/kg): Tl=Thallium (mg/kg): V=Vanadium (mg/kg) SOIL AND SEDIMENT KEY BLUE COLOR DENOTES THAT THIS SEDIMENT LOCATION HAS CORRESPONDING SURFACE WATER DATA. GREEN COLOR DENOTES THAT THIS SOIL LOCATION HAS CORRESPONDING GROUNDWATER DATA. BLACK COLOR DENOTES THAT THIS SOIL LOCATION DOES NOT HAVE CORRESPONDING GROUNDWATER DATA HFO=HYDROXIDE PHASES OF IRON KD=DISTRIBUTION COEFFICIENT GWA-6BRA P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\DE ALLEN CSAUP BASE MAP CALL OUTS_1-12-18.dwg NOTE: 1.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. PIPING OBTAINED FROM DUKE ENERGY, STANTEC, AND SYNTERRA AOW INSPECTION. SW-D1 SW-U1 NPDES OUTFALL 001 OW-1 SOURCE NOTES: NOT ALL UTILITIES ARE IDENTIFIED ON THIS DRAWING. THE UTILITIES SHOWN ON THIS DRAWING ARE VISUAL AIDS. THE HORIZONTAL AND VERTICAL LOCATIONS OF THE UTLITIES HAVE NOT BEEN FIELD VERIFIED. ANY UTILITIES SHOWN ARE APPROXIMATE. LEGEND WELL IN DEEP ZONE WELL IN SHALLOW ZONE WELL IN BEDROCK ZONE ABMW-07 WELL IN ASH PORE WATER WELL ABANDONED ASH BASIN COMPLIANCE BOUNDARY PARCEL LINE DUKE ENERGY (APPROXIMATE) ASH BASIN WASTE BOUNDARY WATER SUPPLY WELL SAMPLED WATER SAMPLE LOCATION SAMPLED SURFACE WATER FLOW DIRECTION FIGURE 14-103 COMPREHENSIVE GROUNDWATER DATA (SHEET 1 OF 2) ALLEN STEAM STATION 253 PLANT ALLEN RD BELMONT, NORTH CAROLINA DUKE ENERGY CAROLINAS FIG 14-103 (GROUNDWATER) L. DRAGO JOHN CHASTAIN PROJECT MANAGER: LAYOUT NAME: DRAWN BY: CHECKED BY: C. SUTTELL DATE: DATE: www.synterracorp.com 148 River Street, Suite 220 Greenville, South Carolina 29601 864-421-9999 GRAPHIC SCALE 4002001000200 (IN FEET) AREA OF WETNESS (AOW) SAMPLE LOCATION WATER SUPPLY WELL NOT SAMPLED APPROXIMATE STREAM (NON-JD) TOPOGRAPHY IS BASED ON LIDAR BARE EARTH DATA OBTAINED FROM THE FRIS\NORTH CAROLINA FLOOD RISK INFORMATION SYSTEM AT http://fris.nc.gov/fris/Download.aspx?FIPS=031&ST=NC&user=General%20Public AND A DRAWING TITLED AERIAL TOPOGRAPHIC SURVEY-ALLEN STEAM STATION BY WSP, JOB NUMBER 157002.00 AND DRAWING FILE NAME APRIL 2014_ALLEN_FINAL_10-30-15.DWG SAMPLE LOCATIONS WERE OBTAINED FROM HDR INFORMATION AND MAY BE APPROXIMATE IN SOME CASES. SOIL OR GEOTECHNICAL BORING APPROXIMATE POND OR RESERVOIR (NON-JD) APPROXIMATE EFFLUENT CHANNEL APPROXIMATE ASH BASIN PONDED WATER SB-1 AB-35D SB-6 SB-2 SB-4 SB-3 S-10 OW-18 AB-28D OW-19 OW-12 OW-8 SB-5 OW-3 OW-7 OW-5 S-9 OW-10 OW-9 OW-20 AB-31D AB-29SL SW-4 SW-3 OW-16 SW-7 ANSW-16 GWA-3BRA SB-9 SW-2 S-5 S-6 S-7 S-8B S-8 ANSW-15 S-4 ANSP002 ANSP002 S-3 ANWW-2 S-2 SW-1 ANSP005 S-1 pH WELL AB-21D SB-8 SW-5 AL49 AL58AL57 AL55 GWA-23DBGSB-GWA-23 AL51 AL56 AL54 AB-24D ANWW-3 AL59 AL60AL61AL62 AL67 AL68 AL69 AL70 AL71 AL63 AL72 AL73 AL53AL52 AL66 AL65 AL64 SB-7 AB-1 AL133 AL1 AL131 BGSB-BG-3 BGSB-BG-2 AL139 AL3 AL96 AL95 BGSB-BG-1 AL35 AL101 AL48 AL93 AL94 AL114 AL47 AL142 AL45 AL46 AL37 AL44 AL43AL38 AL36 AL92 AL39 AL50 AL50 AB-25BR AL113 AL121 AL141 AL74 AL100 AL20 AL22 AL34 AL21 AL23 AL33 AL32 AL24AL25 AL75 AL76 AL84 AL83 AL82 AL81 AL78 AL77 AL79AL80 AL31 AL30 AL32-?? AL7 AL123 AL102 AL15 AL14 AL13 AL12 AL136 AL140 AL11 AL10 AL12 AL116 AL117 AL9 AL118 AL8 AL8-? AL4 AL5 GWA-19D AL19 AL18 AL17 AL16 AL6 AL29 AL28 AL110 AL27 AL26 AL130AL115 AL138 AL135 ANWW-4 SW-6 ANWW-1 ANSP001 ANTD001 AL111 AL108AL85 AL97 AL88 ANFD001 NPDES REGULATED PLANT WATER FEATURE NPDES REGULATED FLOW DIRECTION STAIRS ACTIVE ASH BASIN DISCHARGE TOWER PRIMARY POND 3 PRIMARY POND 2PRIMARY POND 1 INACTIVE ASH BASIN ASH STORAGE STRUCTURAL FILL ASH STORAGE INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL-PHASE I PERMIT NO. 3612 WILDLIFE RD FARM RD MILWOOD LN IDELWOOD LNARMST R O N G R D HIGHLAND WAY HEATHER GLENN CT CAMDEN CTHIGHLA N D PLJOHN D O U G L A S D R WARREN DR MITCHELL STMITCHELL STSOUTHPOINT DRRIVER R U N ARMS T R O N G R DLAKE M IST DR RIVE R R U N REESE WI L S O N R D NUTALL OAK LN NUTALL OAK LN WOODBEND DR LAKE HILL CTPLANT A L L E N R D CANAL RD BOAT C LUB RDSOUTHPOINT RDSOUTHPOINT RD (NC HWY 273)STRUCTURAL FILL STRUCTURAL FILL STRUCTURAL FILL POWER PLANT SOUTH POINT FIRE DEPARTMENT EATON CORPORATION SAILAWAY BAY COAL PILE LANDFILL COMPLIANCE BOUNDARY LANDFILL BOUNDARY DORS FILL BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY 1/15/2018 1/15/2018 OW-2 HOLDING BASIN BG-2BR CCR-4S GWA-21D SOUTHPOINT RD (NC HWY 273)SOUTHPOINT RD (NC HWY 273)BG-1D GWA-3BR STAIRS 48" HDPE DISCHARGE PIPE CULVERT CULVERT DISCHARGE TOWER HEAD WALL EMERGENCY SPILLWAY PIPES OBSERVATION WELL AT NEW HOLDING BASIN DEWATERING WELL AT NEW HOLDING BASIN GWA-5BR LAKE WYLIE (CATAWBA RIVER ) PIEZOMETER IN COMPETENT BEDROCK ZONE P-1 PIEZOMETER IN UNKNOWN ZONE (AECOM DATA) OW-15 OW-16 OW-18 OW-17 OW-14 OW-13 OW-22 OW-21PN-2D PN-1D OW-20 OW-12 OW-11 OW-8 OW-10 P-7 P-9 AL39 AL36 GWA-9BR GWA-9D GWA-9S GWA-5BR S-3 SB-7 SW-2 NPDES OUTFALL 002 CELL 1 CELL 2A CELL 2B OW-5P-1 OW-2 P-3 OW-4 OW-6 RAB ASH LANDFILL WASTE BOUNDARY BASED ON LINER LIMITS RAB ASH LANDFILL COMPLIANCE BOUNDARY RAB ASH LANDFILL WASTE BOUNDARY BASED LINER LIMITS IN THE S&ME DRAWINGS FOR THE RAB ASH LANDFILL PHASE I, PROJECT NUMBER 7235-14-011, DATED 06-16-2015. RETIRED ASH BASIN AB-1R (53.29-73.29): pH=6.3, Eh=324, k=NM, As=0.11, Sb=<0.5, Ba=40.6, Be=0.012 j, B=<50, Cd=<0.08, Cl=1.2, Cr=4.6, Cr (IV)=4, Co=0.12, Fe=29.8 j, Mn=2.8 j, Mo=0.18 j,B, Ni=2.5, Se=2.3, Sr=473, SO4=219, Tl=<0.1, TDS=400, V=2.1, Ra=NA, U=NA AB-2 (7.04-22.04): pH=4.7, Eh=317, k=0.000219, As=0.079 j,B, Sb=0.29 j, Ba=33.5, Be=0.12, B=<50, Cd=<0.08, Cl=2.8, Cr=0.95 B, Cr (IV)=0.2, Co=1.8, Fe=178, Mn=51, Mo=<0.5, Ni=1.4, Se=<0.5, Sr=3.9 j, SO4=0.61 j, Tl=0.023 j, TDS=<25, V=0.44, Ra=NA, U=NA AB-2D (68.13-73.13): pH=6.5, Eh=329, k=0.005, As=0.12 B, Sb=<0.5, Ba=26.8, Be=0.019 j, B=<50, Cd=<0.08, Cl=1.9, Cr=3.6, Cr (IV)=2.3, Co=0.041 j, Fe=27.1 j, Mn=<5, Mo=<0.5, Ni=1.6, Se=<0.5, Sr=102, SO4=0.66 j, Tl=<0.1, TDS=77, V=7.3, Ra=NA, U=NA AB-4D (47.19-52.19): pH=6.1, Eh=407, k=0.000624, As=0.074 j, Sb=<0.5, Ba=28.6, Be=0.032 j, B=<50, Cd=<0.08, Cl=4.9, Cr=5.9, Cr (IV)=5.4, Co=0.063 j, Fe=30.2 j, Mn=2.8 j, Mo=0.13 j, Ni=3.2, Se=<0.5, Sr=176, SO4=2, Tl=<0.1, TDS=104, V=4.8, Ra=0.403, U=<0.0005 AB-4S (14.94-29.94): pH=6, Eh=206, k=NM, As=0.23, Sb=<0.5, Ba=27, Be=0.051 j, B=38.9 j, Cd=<0.08, Cl=4.2, Cr=0.52, Cr (IV)=0.053 j,D3,M1,R1, Co=0.92, Fe=584, Mn=152, Mo=0.12 j, Ni=0.98, Se=0.41 j, Sr=40.2, SO4=8.1, Tl=0.053 j, TDS=76, V=1.8, Ra=0.6873, U=<0.0005 AB-4BR (82.96-87.96): pH=6.5, Eh=369, k=0.00385154903902313, As=0.24, Sb=0.2 j, Ba=78.7, Be=0.018 j, B=<50, Cd=0.53, Cl=13.8, Cr=1.2, Cr (IV)=0.65, Co=1.7, Fe=<50, Mn=459, Mo=4.2, Ni=1.5, Se=<0.5, Sr=278, SO4=5.7, Tl=0.022 j, TDS=152, V=3.6, Ra=0.924, U=0.00022 j AB-5 (29.92-44.92): pH=4.5, Eh=407, k=0.00079, As=0.081 j, Sb=<0.5, Ba=31.1, Be=0.063 j, B=<50, Cd=<0.08, Cl=2.7, Cr=8.3, Cr (IV)=1.5, Co=0.32, Fe=764, Mn=20, Mo=<0.5, Ni=4.9, Se=<0.5, Sr=16.9, SO4=1.3, Tl=0.032 j, TDS=<25, V=2.7, Ra=NA, U=NA AB-6A (33.22-36.22): pH=6.1, Eh=195, k=0.0000579, As=0.13, Sb=<0.5, Ba=37, Be=0.017 j, B=<50, Cd=<0.08, Cl=13.8, Cr=12.6, Cr (IV)=12.7, Co=0.091 j, Fe=<50, Mn=11.2, Mo=<0.5, Ni=1.1, Se=0.57, Sr=206, SO4=28.6, Tl=<0.1, TDS=115, V=4.4, Ra=0.424, U=<0.0005 AB-6R (38.9-41.9): pH=6.5, Eh=292, k=0.0000281, As=0.12, Sb=0.12 j, Ba=31, Be=0.011 j, B=<50, Cd=<0.08, Cl=8.2, Cr=10.7, Cr (IV)=12.3, Co=0.096 j, Fe=140, Mn=27.7, Mo=0.15 j, Ni=2.1, Se=<0.5, Sr=211, SO4=26.3, Tl=<0.1, TDS=115, V=3.8, Ra=0.695, U=<0.0005 AB-8 (32.2-37.2): pH=6.08, Eh=NM, k=0.000661, As=<1, Sb=NA, Ba=98.4, Be=NA, B=496, Cd=<1, Cl=9.2, Cr=1.3, Cr (IV)=NA, Co=NA, Fe=33.9, Mn=<5, Mo=NA, Ni=<1, Se=<1, Sr=NA, SO4=31, Tl=NA, TDS=146, V=NA, Ra=NA, U=NA AB-9D (117.93-122.93): pH=6.6, Eh=316, k=NM, As=0.075 j, Sb=<0.5, Ba=27.5, Be=<0.1, B=538, Cd=<0.08, Cl=8.5, Cr=0.66, Cr (IV)=0.21, Co=0.024 j, Fe=<50, Mn=4.8 j, Mo=0.19 j, Ni=<0.5, Se=2.2, Sr=322, SO4=46.4, Tl=<0.1, TDS=179, V=6.6, Ra=0.4754, U=0.00013 j AB-9S (7.7-22.7): pH=6.2, Eh=210, k=NM, As=0.095 j, Sb=<0.5, Ba=158, Be=<0.1, B=701, Cd=<0.08, Cl=9.1, Cr=0.43 j, Cr (IV)=0.052 j,D3, Co=7, Fe=5550, Mn=9180, Mo=0.14 j, Ni=0.74, Se=<0.5, Sr=158, SO4=38.4, Tl=0.025 j, TDS=131, V=<0.3, Ra=1.235, U=<0.0005 AB-10D (60.06-65.06): pH=6.1, Eh=313, k=NM, As=0.12, Sb=<0.5, Ba=38.5, Be=<0.1, B=<50, Cd=<0.08, Cl=8.1, Cr=3.3, Cr (IV)=2.4, Co=0.069 j, Fe=39.4 j, Mn=3.2 j, Mo=<0.5, Ni=0.56, Se=<0.5, Sr=205, SO4=23.7, Tl=<0.1, TDS=130, V=4.7, Ra=NA, U=NA AB-10S (5.4-20.4): pH=6.1, Eh=212, k=NM, As=0.094 j, Sb=0.1 j, Ba=62.8, Be=0.026 j, B=29.1 j, Cd=<0.08, Cl=16.8, Cr=1, Cr (IV)=0.49, Co=2, Fe=406, Mn=770, Mo=<0.5, Ni=0.84, Se=0.48 j, Sr=216, SO4=17.3, Tl=<0.1, TDS=103, V=0.91, Ra=NA, U=NA AB-11D (17.68-22.68): pH=6, Eh=310, k=NM, As=0.061 j, Sb=<0.5, Ba=40.3, Be=<0.1, B=<50, Cd=<0.08, Cl=6.2, Cr=2.7, Cr (IV)=2.2 M6, Co=0.043 j, Fe=<50, Mn=<5, Mo=<0.5, Ni=2.8, Se=<0.5, Sr=114, SO4=0.57 j, Tl=<0.1, TDS=86, V=1.7, Ra=1.256, U=<0.0005 AB-12D (93.04-98.04): pH=6.5, Eh=321, k=NM, As=0.12, Sb=<0.5, Ba=41.5, Be=0.01 j, B=<50, Cd=<0.08, Cl=5.1, Cr=0.76, Cr (IV)=0.45, Co=0.14, Fe=305, Mn=8.3, Mo=0.25 j,B, Ni=<0.5, Se=0.8, Sr=158, SO4=4.2, Tl=<0.1, TDS=104, V=4.3, Ra=NA, U=NA AB-12S (10.1-25.1): pH=4.8, Eh=507, k=NM, As=<1, Sb=<1, Ba=36, Be=<1, B=<50, Cd=<1, Cl=3, Cr=<5, Cr (IV)=NA, Co=<1, Fe=39, Mn=32, Mo=<1, Ni=<5, Se=<1, Sr=<5, SO4=0.16, Tl=<0.2, TDS=29, V=<0.3, Ra=NA, U=NA AB-13D (69.65-74.65): pH=6.2, Eh=380, k=NM, As=0.11, Sb=<0.5, Ba=43.2, Be=0.022 j, B=26.9 j, Cd=<0.08, Cl=10.2, Cr=2, Cr (IV)=1.1, Co=0.16, Fe=375, Mn=9.9, Mo=0.94, Ni=2.1, Se=<0.5, Sr=198, SO4=0.68 j, Tl=<0.1, TDS=103, V=6, Ra=0.427, U=<0.0005 AB-13S (8.74-23.74): pH=5.5, Eh=291, k=NM, As=0.052 j, Sb=<0.5, Ba=43.5, Be=0.071 j, B=26.6 j, Cd=<0.08, Cl=11.4, Cr=0.56, Cr (IV)=0.62, Co=0.85, Fe=27.5 j, Mn=17.5, Mo=<0.5, Ni=2.4, Se=<0.5, Sr=53.8, SO4=<1, Tl=<0.1, TDS=44, V=0.74, Ra=0.65, U=<0.0005 AB-14BR (93.3-98.3): pH=8.2, Eh=177, k=0.000229721570602327, As=1.4, Sb=0.27 j, Ba=10.8, Be=<0.1, B=<50, Cd=0.12, Cl=3, Cr=0.36 j,B, Cr (IV)=0.072 M1, Co=0.012 j, Fe=<50, Mn=<5, Mo=13.6, Ni=<0.5, Se=<0.5, Sr=81.6, SO4=5.8, Tl=<0.1, TDS=113, V=15.9, Ra=NA, U=NA AB-14D (21.74-31.74): pH=4.9, Eh=530, k=NM, As=0.096 j,B, Sb=<0.5, Ba=53.8, Be=0.16, B=163, Cd=<0.08, Cl=9.7, Cr=3.3, Cr (IV)=2, Co=1.7, Fe=282, Mn=13.6, Mo=0.22 j, Ni=13.3, Se=0.47 j, Sr=57.1, SO4=27.1, Tl=<0.1, TDS=101, V=1.1, Ra=NA, U=NA AB-20D (127.7-132.7): pH=7.7, Eh=272, k=0.0210784676862432, As=0.73, Sb=<0.5, Ba=14.2, Be=<0.1, B=<50, Cd=<0.08, Cl=3.1, Cr=1.1, Cr (IV)=0.94, Co=0.022 j, Fe=<50, Mn=3.2 j, Mo=2.5 B, Ni=<0.5, Se=<0.5, Sr=117, SO4=4.7, Tl=<0.1, TDS=97 D6, V=11.3, Ra=NA, U=NA AB-20S (7.68-22.68): pH=6.6, Eh=195, k=0.00178, As=50.5, Sb=0.74, Ba=61.8, Be=0.026 j, B=2430, Cd=<0.08, Cl=4.2, Cr=0.53, Cr (IV)=0.031, Co=3.3, Fe=2340, Mn=209, Mo=13.7, Ni=32.4, Se=49.1, Sr=2130, SO4=214, Tl=0.19, TDS=690, V=5.7, Ra=NA, U=NA AB-21SL (37.58-47.58): pH=7.8, Eh=20, k=0.0000883, As=589, Sb=1.3, Ba=255, Be=0.051 j, B=6950, Cd=0.22, Cl=14.3, Cr=0.24 j,B, Cr (IV)=0.041 j,D3, Co=1.1, Fe=1110, Mn=218, Mo=2950, Ni=3.7, Se=<0.5, Sr=1770, SO4=140, Tl=0.042 j, TDS=359, V=4.6, Ra=1.142, U=0.0387 AB-21S (8.59-23.59): pH=6.7, Eh=72, k=0.00228, As=634, Sb=0.43 j, Ba=419, Be=0.041 j, B=3280 M1, Cd=<0.08, Cl=61.8, Cr=0.17 j,B, Cr (IV)=0.41, Co=0.8, Fe=11500, Mn=1190, Mo=<5 M1, Ni=1.6, Se=0.63, Sr=3490, SO4=75.8, Tl=0.063 j, TDS=568, V=7.8, Ra=1.525, U=0.0161 AB-22BR (203.03-208.03): pH=7.7, Eh=-18, k=NM, As=0.36 B, Sb=0.15 j, Ba=19.9, Be=0.012 j, B=1550, Cd=<0.08, Cl=20, Cr=3.2, Cr (IV)=0.054, Co=0.18, Fe=454, Mn=123, Mo=1.5, Ni=2.4, Se=<0.5, Sr=272, SO4=22, Tl=<0.1, TDS=261, V=1.7, Ra=NA, U=NA AB-22D (159.7-164.7): pH=6.2, Eh=236, k=0.00194380657473937, As=0.24 B, Sb=0.26 j, Ba=80.5, Be=0.014 j, B=1540, Cd=<0.08, Cl=19.6, Cr=3.2, Cr (IV)=0.085, Co=0.55, Fe=642, Mn=153, Mo=1.5, Ni=4.3, Se=0.34 j, Sr=380, SO4=43.3, Tl=<0.1, TDS=240, V=15.3, Ra=NA, U=NA AB-22S (84.73-99.73): pH=5.1, Eh=389, k=0.00000504, As=0.18 B, Sb=0.33 j, Ba=62.8, Be=0.083 j, B=<50, Cd=<0.08, Cl=9.6, Cr=1.7, Cr (IV)=<0.12 D3, Co=32.3, Fe=2700, Mn=1160, Mo=<0.5, Ni=3.8, Se=<0.5, Sr=54.1, SO4=2.2, Tl=0.035 j, TDS=42, V=1.4, Ra=NA, U=NA AB-23S (28.23-43.23): pH=8.38, Eh=142, k=0.00323, As=1030, Sb=0.28 j, Ba=60, Be=<0.2, B=560, Cd=<0.08, Cl=7.9, Cr=0.19 j, Cr (IV)=NA, Co=0.29 j, Fe=80.8, Mn=200, Mo=50.3, Ni=0.34 j, Se=0.24 j, Sr=560, SO4=9.9, Tl=<0.1, TDS=98, V=5.1, Ra=NA, U=NA AB-24S (7.97-22.97): pH=6.9, Eh=119, k=0.0357, As=85.2, Sb=0.93, Ba=359, Be=0.019 j,B, B=294, Cd=<0.08, Cl=8.5, Cr=0.21 j,B, Cr (IV)=<0.12 D3, Co=0.96, Fe=2100, Mn=527, Mo=9.5, Ni=1.8, Se=<0.5, Sr=850, SO4=20.1, Tl=0.046 j, TDS=129, V=11.1, Ra=NA, U=NA AB-24SL (28.4-38.4): pH=7.5, Eh=163, k=0.000422, As=583, Sb=0.5 j, Ba=123, Be=<0.1, B=606, Cd=<0.08, Cl=7, Cr=0.24 j, Cr (IV)=<0.025, Co=0.048 j,B, Fe=126, Mn=53.1, Mo=57.3, Ni=0.57, Se=<0.5, Sr=714, SO4=20.6, Tl=<0.1, TDS=118, V=2.7, Ra=NA, U=NA AB-24BR (156.22-161.22): pH=7.4, Eh=141, k=NM, As=0.26, Sb=<0.5, Ba=21.4, Be=<0.1, B=<50, Cd=<0.08, Cl=2.2, Cr=0.21 j, Cr (IV)=<0.025, Co=0.072 j,B, Fe=143, Mn=163, Mo=2.5, Ni=1.8, Se=<0.5, Sr=106, SO4=3.4, Tl=<0.1, TDS=83, V=8.1, Ra=NA, U=NA AB-25S (7.76-22.76): pH=6.2, Eh=190, k=0.00079, As=155, Sb=7.6, Ba=128, Be=0.017 j, B=1390, Cd=<0.08, Cl=7.1, Cr=3.8, Cr (IV)=<0.025, Co=2.5, Fe=416, Mn=214, Mo=180, Ni=6.4, Se=<0.5, Sr=1570, SO4=62.4, Tl=0.18, TDS=238, V=35.2, Ra=0.3746, U=0.0096 AB-25SL (32.52-47.52): pH=8.4, Eh=121, k=0.000339, As=807, Sb=0.7, Ba=156, Be=0.016 j, B=1280, Cd=<0.08, Cl=6.9, Cr=0.27 j, Cr (IV)=<0.025, Co=0.079 j, Fe=78.6, Mn=39.1, Mo=157, Ni=1.7, Se=<0.5, Sr=1720, SO4=59.5, Tl=<0.1, TDS=234, V=6.1, Ra=0.355, U=0.0147 AB-26D (191.37-196.37): pH=7.9, Eh=162, k=3.86917226290068E-05, As=0.28, Sb=0.59, Ba=27.8, Be=<0.1, B=276, Cd=<0.08, Cl=5.4, Cr=2.5, Cr (IV)=0.73, Co=0.34, Fe=405, Mn=114, Mo=1.6, Ni=1.6, Se=0.44 j, Sr=223, SO4=32.9, Tl=<0.1, TDS=153, V=6.2, Ra=NA, U=NA AB-26S (84.82-94.82): pH=5.6, Eh=318, k=0.0000297, As=0.15 B, Sb=0.27 j, Ba=125, Be=0.031 j, B=1100, Cd=<0.08, Cl=8.9, Cr=2.4, Cr (IV)=0.29, Co=1.2, Fe=595, Mn=219, Mo=0.12 j, Ni=3.9, Se=0.32 j, Sr=212, SO4=72.6, Tl=<0.1, TDS=148, V=1.7, Ra=NA, U=NA AB-27D (110.2-115.2): pH=6.4, Eh=86, k=0.00035, As=9.7, Sb=0.29 j, Ba=65.8, Be=0.03 j, B=387, Cd=<0.08, Cl=6.7, Cr=0.73, Cr (IV)=0.29, Co=0.75, Fe=1030, Mn=126, Mo=16.3, Ni=2, Se=2.4, Sr=523, SO4=67, Tl=<0.1, TDS=212, V=10.4, Ra=NA, U=NA AB-27S (7.72-22.72): pH=6.6, Eh=115, k=0.0000385, As=248, Sb=<0.5, Ba=343, Be=<0.1, B=516, Cd=<0.08, Cl=6.6, Cr=0.44 j, Cr (IV)=0.53, Co=5.7, Fe=13100, Mn=2920, Mo=3.4, Ni=0.75, Se=<0.5, Sr=1030, SO4=21.1, Tl=<0.1, TDS=230, V=0.68, Ra=NA, U=NA AB-27BR (182.61-187.61): pH=7.5, Eh=70, k=NM, As=0.3, Sb=0.19 j, Ba=6.1, Be=0.014 j, B=130, Cd=<0.08, Cl=6.9, Cr=0.64, Cr (IV)=0.015 j, Co=0.5, Fe=180, Mn=324, Mo=3.6, Ni=4.2, Se=<0.5, Sr=146, SO4=33.6, Tl=<0.1, TDS=154, V=1.3, Ra=NA, U=NA OW-13 AB-28S (4.84-19.84): pH=5.3, Eh=205, k=0.0000158, As=31.3, Sb=0.37 j, Ba=88.8, Be=0.054 j,B, B=869, Cd=<0.08, Cl=12.4, Cr=0.61 B, Cr (IV)=<0.12 D3, Co=9.7, Fe=6180, Mn=2390, Mo=3.7, Ni=1.9, Se=17.3, Sr=1600, SO4=132, Tl=0.33, TDS=397, V=0.52, Ra=NA, U=NA AB-30S (4.75-19.75): pH=7.6, Eh=13, k=0.000249, As=288, Sb=0.55, Ba=339, Be=0.022 j,B, B=881, Cd=<0.08, Cl=9.2, Cr=0.19 j,B, Cr (IV)=<0.12 D3, Co=2.4, Fe=4910, Mn=1160, Mo=7.1, Ni=1.3, Se=<0.5, Sr=1400, SO4=46.7, Tl=0.044 j, TDS=219, V=9.2, Ra=NA, U=NA AB-30D (137.85-142.85): pH=6.6, Eh=249, k=0.000690591934502569, As=0.21, Sb=<0.5, Ba=44.7, Be=<0.1, B=<50, Cd=<0.08, Cl=4, Cr=0.74 B, Cr (IV)=0.35, Co=0.18, Fe=<50, Mn=4.3 j, Mo=0.18 j, Ni=<0.5, Se=<0.5, Sr=171, SO4=25.2, Tl=0.016 j, TDS=137, V=12.3, Ra=NA, U=NA AB-29D (112.37-117.37): pH=5.7, Eh=249, k=0.000897, As=0.19, Sb=<0.5, Ba=47.5, Be=<0.1, B=322, Cd=<0.08, Cl=6.3, Cr=0.85 B, Cr (IV)=0.56, Co=0.45, Fe=<50, Mn=7.2, Mo=0.37 j, Ni=3.5, Se=<0.5, Sr=226, SO4=45.8, Tl=<0.1, TDS=160, V=7.3, Ra=NA, U=NA AB-29S (4.86-19.86): pH=5.2, Eh=193, k=0.00442, As=80, Sb=<0.5, Ba=206, Be=0.031 j,B, B=614, Cd=<0.08, Cl=7.6, Cr=0.32 j,B, Cr (IV)=<0.25 D3, Co=25, Fe=13500, Mn=5390, Mo=2.6, Ni=3.8, Se=<0.5, Sr=456, SO4=44.5, Tl=0.052 j, TDS=171, V=2.3, Ra=NA, U=NA AB-31S (57.8-72.8): pH=5.8, Eh=402, k=0.000635, As=0.077 j, Sb=<0.5, Ba=25.8, Be=0.027 j, B=1930, Cd=0.11, Cl=8.8, Cr=1.6, Cr (IV)=0.26, Co=0.18, Fe=606, Mn=41.1, Mo=<0.5, Ni=0.99, Se=<0.5, Sr=268, SO4=118, Tl=<0.1, TDS=210, V=2, Ra=NA, U=NA AB-32D (119.77-124.77): pH=6.8, Eh=283, k=0.000486062958884958, As=0.26, Sb=0.22 j, Ba=46.7, Be=<0.1, B=455, Cd=<0.08, Cl=5.1, Cr=4.6, Cr (IV)=0.55, Co=0.17, Fe=149, Mn=16.6, Mo=0.73, Ni=3.1, Se=0.43 j, Sr=201, SO4=23.5, Tl=<0.1, TDS=139, V=7.8, Ra=NA, U=NA AB-33S (23.04-38.04): pH=6.3, Eh=80, k=0.00491, As=0.12, Sb=<0.5, Ba=27.4, Be=0.054 j, B=778, Cd=0.05 j, Cl=7.3, Cr=0.34 j, Cr (IV)=<0.25 D3, Co=14.2, Fe=41100, Mn=7640, Mo=6.5, Ni=1.9, Se=<0.5, Sr=3380, SO4=383, Tl=0.092 j, TDS=838, V=0.42 B, Ra=0.87, U=0.00061 AB-33D (119.12-124.12): pH=7.4, Eh=179, k=3.86046577500695E-05, As=0.3, Sb=1.6, Ba=50.7, Be=<0.1, B=190, Cd=<0.08, Cl=2.3, Cr=2.2, Cr (IV)=0.015 j, Co=0.27, Fe=446, Mn=59.9, Mo=1.4, Ni=1.7, Se=0.66, Sr=266, SO4=6.5, Tl=<0.1, TDS=126, V=5, Ra=0.742, U=0.00035 j AB-34D (137.76-142.76): pH=7, Eh=182, k=0.000966456413916324, As=0.19, Sb=<0.5, Ba=27.9, Be=<0.1, B=<50, Cd=<0.08, Cl=1.9, Cr=0.95, Cr (IV)=0.41, Co=0.089 j,B, Fe=164, Mn=5.3, Mo=0.75 B, Ni=0.47 j, Se=<0.5, Sr=132, SO4=1.6, Tl=<0.1, TDS=94, V=11.9, Ra=NA, U=N AB-34S (19.72-34.72): pH=6.4, Eh=128, k=0.02906, As=0.45, Sb=<0.5, Ba=48.7, Be=<0.1, B=305, Cd=<0.08, Cl=12.6, Cr=0.49 j, Cr (IV)=<0.5 D3, Co=2, Fe=108000, Mn=7120, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=1360, SO4=164, Tl=<0.1, TDS=417, V=0.12 j, Ra=NA, U=NA AB-35BR (184.81-189.81): pH=7.6, Eh=277, k=0.0000926, As=0.59, Sb=0.34 j, Ba=23.1, Be=<0.1, B=<50, Cd=<0.08, Cl=2.7, Cr=1.8, Cr (IV)=0.97, Co=0.024 j, Fe=31.5 j, Mn=2.6 j, Mo=2.4, Ni=0.62, Se=<0.5, Sr=128, SO4=2.8, Tl=<0.1, TDS=100, V=7.2, Ra=0.1424, U=0.00018 j AB-35S (37.85-52.85): pH=6.5, Eh=99, k=0.00223, As=70.3, Sb=0.27 j, Ba=78.6, Be=0.027 j, B=926, Cd=<0.08, Cl=5.3, Cr=0.57, Cr (IV)=<0.12 D3, Co=0.16 B, Fe=49100, Mn=8290, Mo=4.5, Ni=0.57, Se=0.6, Sr=1820, SO4=234, Tl=<0.1, TDS=677, V=0.97, Ra=1.277, U=0.00037 j AB-36S (8.09-18.09): pH=5.8, Eh=166, k=0.001, As=18.9, Sb=<0.5, Ba=303, Be=0.062 j, B=87.8, Cd=<0.08, Cl=7.2, Cr=0.43 j, Cr (IV)=0.032, Co=1.5, Fe=1490, Mn=752, Mo=2.3, Ni=7.4, Se=0.32 j, Sr=604, SO4=18.5, Tl=0.13, TDS=152, V=1.4, Ra=NA, U=NA AB-36D (95.66-100.66): pH=7.5, Eh=174, k=0.00121, As=0.32, Sb=<0.5, Ba=47.4, Be=0.026 j, B=<50, Cd=<0.08, Cl=2.4, Cr=0.43 j, Cr (IV)=0.081, Co=0.1, Fe=97.4, Mn=4.2 j, Mo=1.5, Ni=0.98, Se=<0.5, Sr=111, SO4=4, Tl=0.035 j, TDS=101, V=8, Ra=NA, U=NA AB-37D (63.2-68.2): pH=7, Eh=288, k=0.00171, As=0.27, Sb=0.17 j, Ba=34.4, Be=0.011 j, B=<50, Cd=<0.08, Cl=5.4, Cr=0.86, Cr (IV)=0.15, Co=0.24, Fe=336, Mn=8.7, Mo=1.6, Ni=<0.5, Se=<0.5, Sr=145, SO4=2.7, Tl=<0.1, TDS=112, V=10, Ra=NA, U=NA AB-37S (6.13-21.13): pH=6.1, Eh=201, k=0.00704, As=0.42, Sb=<0.5, Ba=29.3, Be=<0.1, B=<50, Cd=<0.08, Cl=3.9, Cr=0.64, Cr (IV)=0.36, Co=0.5, Fe=686, Mn=52.1, Mo=0.11 j, Ni=1.3, Se=<0.5, Sr=130, SO4=2.3, Tl=<0.1, TDS=82 D6, V=9.1, Ra=NA, U=NA AB-38D (70.79-75.79): pH=6.2, Eh=297, k=0.00174, As=0.22 B, Sb=<0.5, Ba=110, Be=0.012 j, B=<50, Cd=<0.08, Cl=3.8, Cr=0.32 j,B, Cr (IV)=0.029, Co=0.79, Fe=262, Mn=70.8, Mo=0.56, Ni=2.1, Se=<0.5, Sr=368, SO4=15.5, Tl=<0.1, TDS=172, V=3.4, Ra=NA, U=NA AB-38S (12.97-27.97): pH=7, Eh=142, k=0.000367, As=303, Sb=0.2 j, Ba=261, Be=0.032 j, B=179, Cd=<0.08, Cl=1.9, Cr=0.4 j,B, Cr (IV)=0.057 j,D3, Co=2.5, Fe=26300, Mn=1710, Mo=2.6, Ni=1.2, Se=<0.5, Sr=977, SO4=13.4, Tl=0.11, TDS=168, V=1.3, Ra=NA, U=NA AB-38BR (104.23-109.23): pH=6.7, Eh=184, k=NM, As=0.28, Sb=0.12 j, Ba=86.3, Be=<0.1, B=<50, Cd=<0.08, Cl=4.5, Cr=0.32 j,B, Cr (IV)=0.012 j, Co=0.18, Fe=41.4 j, Mn=106, Mo=2.1, Ni=1.7, Se=<0.5, Sr=395, SO4=17.8, Tl=<0.1, TDS=194, V=4.3, Ra=NA, U=NA AB-39D (85.98-90.98): pH=5.9, Eh=218, k=0.0027683222355788, As=0.19, Sb=<0.5, Ba=184, Be=0.14, B=84.6, Cd=0.087, Cl=13.6, Cr=0.4 j, Cr (IV)=0.062, Co=0.16 B, Fe=29.7 j, Mn=25.2, Mo=0.18 j,B, Ni=0.73, Se=3.3, Sr=454, SO4=32.5, Tl=0.089 j,B, TDS=216, V=2.3, Ra=NA, U=NA AB-39S (33.05-48.05): pH=6.5, Eh=164, k=0.000228, As=2.6, Sb=<0.5, Ba=253, Be=0.01 j, B=135, Cd=<0.08, Cl=10.8, Cr=0.37 j, Cr (IV)=<0.25 D3, Co=2.7, Fe=55100, Mn=4960, Mo=0.23 j,B, Ni=<0.5, Se=<0.5, Sr=281, SO4=0.98 j, Tl=<0.1, TDS=171, V=0.72, Ra=NA, U=NA BG-1DA (134.27-139.27): pH=7.4, Eh=266, k=NM, As=0.27, Sb=0.15 j, Ba=17.4, Be=0.014 j, B=<50, Cd=<0.08, Cl=2.7, Cr=6.8, Cr (IV)=0.54, Co=0.16, Fe=151, Mn=5.7, Mo=1.9, Ni=3.7, Se=<0.5, Sr=106, SO4=1.6, Tl=<0.1, TDS=81, V=11, Ra=0.745, U=0.0002 j BG-1S (42.73-57.73): pH=5.8, Eh=384, k=0.000027, As=0.1, Sb=0.12 j, Ba=38.5, Be=0.026 j, B=<50, Cd=<0.08, Cl=2.2, Cr=0.37 j, Cr (IV)=0.16, Co=0.056 j, Fe=168, Mn=7.1, Mo=<0.5, Ni=0.89, Se=<0.5, Sr=30.2, SO4=0.54 j, Tl=0.017 j, TDS=<25, V=0.83, Ra=0.2832, U=<0.0005 BG-2BRA-2 (130.35-140.35): pH=7.5, Eh=412, k=NM, As=0.6, Sb=0.27 j, Ba=20.4, Be=0.023 j, B=<50, Cd=<0.08, Cl=2.8, Cr=8.9, Cr (IV)=0.66, Co=0.15, Fe=148, Mn=28.8, Mo=5.4, Ni=4.6, Se=<0.5, Sr=181, SO4=7.3, Tl=0.02 j, TDS=121, V=9.9, Ra=0.17, U=0.00044 j BG-2D (109.89-114.89): pH=7.1, Eh=326, k=0.000148783466823434, As=0.24, Sb=<0.5, Ba=52, Be=0.011 j, B=<50, Cd=<0.08, Cl=2.3 M1, Cr=2.1, Cr (IV)=1, Co=0.11, Fe=94.7, Mn=5.4, Mo=1.3, Ni=0.89, Se=<0.5, Sr=202, SO4=1.1, Tl=<0.1, TDS=113, V=9.2, Ra=0.854, U=0.00011 j BG-2S (55.9-70.9): pH=6, Eh=295, k=0.0000538, As=0.52, Sb=0.48 j, Ba=15.6, Be=0.026 j, B=<50, Cd=<0.08, Cl=8.1, Cr=9.2, Cr (IV)=1.3, Co=0.43, Fe=227, Mn=8.3, Mo=0.13 j,B, Ni=4.2, Se=1.8, Sr=188, SO4=<1, Tl=0.024 j, TDS=134, V=7.5, Ra=0.083, U=<0.0005 BG-3D (95.45-100.45): pH=6.4, Eh=289, k=0.00014068119988115, As=0.14, Sb=<0.5, Ba=88.6, Be=<0.1, B=<50, Cd=<0.08, Cl=2.6, Cr=0.56, Cr (IV)=0.27, Co=0.055 j,B, Fe=59.7, Mn=3.4 j, Mo=0.27 j, Ni=<0.5, Se=<0.5, Sr=229, SO4=0.76 j, Tl=<0.1, TDS=111, V=6.6, Ra=NA, U=NA BG-3S (72.68-87.68): pH=6.3, Eh=325, k=0.0000578, As=0.13, Sb=0.43 j, Ba=56.6, Be=<0.1, B=<50, Cd=<0.08, Cl=1.8, Cr=3.1, Cr (IV)=0.28, Co=0.12 B, Fe=207, Mn=32.6, Mo=0.31 j, Ni=2.5, Se=<0.5, Sr=263, SO4=0.76 j, Tl=<0.1, TDS=111, V=2.9, Ra=NA, U=NA BG-4D (108.79-113.79): pH=7, Eh=250, k=9.30578529732983E-05, As=0.98, Sb=0.17 j, Ba=89.6, Be=0.018 j, B=<50, Cd=<0.08, Cl=1.6, Cr=2.3, Cr (IV)=0.28, Co=0.43, Fe=171, Mn=154, Mo=7.7, Ni=1.9, Se=<0.5, Sr=251, SO4=1.9, Tl=<0.1, TDS=150, V=7.4, Ra=0.395, U=0.00052 BG-4S (81.3-96.3): pH=5.5, Eh=381, k=0.0000411, As=0.22, Sb=0.16 j, Ba=66, Be=0.016 j, B=<50, Cd=<0.08, Cl=1.6, Cr=0.74, Cr (IV)=0.22, Co=0.25, Fe=229, Mn=38, Mo=0.29 j, Ni=2.4, Se=<0.5, Sr=263, SO4=0.72 j, Tl=<0.1, TDS=112, V=2.1, Ra=1.357, U=<0.0005 BG-4BR (163.07-168.07): pH=7.2, Eh=297, k=0.000239357703030423, As=0.31, Sb=<0.5, Ba=11.3, Be=0.016 j, B=<50, Cd=<0.08, Cl=1.6, Cr=2, Cr (IV)=0.18, Co=0.072 j, Fe=74.8, Mn=5.5, Mo=2.4, Ni=1.7, Se=<0.5, Sr=98.5, SO4=2.3, Tl=<0.1, TDS=115, V=9.9, Ra=0.1088, U=0.00031 j GWA-1BR (119.65-124.65): pH=7.2, Eh=288, k=0.0000072, As=0.46, Sb=<0.5, Ba=43.4, Be=0.029 j, B=<50, Cd=<0.08, Cl=13.1, Cr=2.9, Cr (IV)=2.6, Co=0.071 j, Fe=<50, Mn=6.6, Mo=1.1, Ni=<0.5, Se=<0.5, Sr=223, SO4=12.7, Tl=0.047 j, TDS=151, V=10.1, Ra=0.338, U=0.0015GWA-1D (80.85-85.85): pH=6.7, Eh=250, k=0.00106, As=0.29, Sb=<0.5, Ba=45.7, Be=0.026 j, B=37.6 j, Cd=<0.08, Cl=20.7, Cr=7, Cr (IV)=6.8, Co=0.052 j, Fe=<50, Mn=10, Mo=0.5, Ni=1, Se=<0.5, Sr=246, SO4=11.2, Tl=0.022 j, TDS=161, V=8.4, Ra=0.529, U=0.00024 j GWA-1S (7.74-22.74): pH=5, Eh=523, k=0.00233, As=0.1, Sb=<0.5, Ba=97.5, Be=0.09 j, B=<50, Cd=<0.08, Cl=19, Cr=2.2, Cr (IV)=0.74, Co=3, Fe=95.5, Mn=15.8, Mo=<0.5, Ni=0.84, Se=<0.5, Sr=9, SO4=<1, Tl=0.035 j, TDS=54, V=0.46, Ra=0.2458, U=<0.0005 AB-22BRL (243-248): pH=7.0, Eh=252, As=0.39, Sb=<0.5, Be=<0.1, B=1670, Cd=<0.08, Cr=1.3, Cr (IV)=0.089, Co=0.18, Fe=51.6 B, Mn=6, Mo=2.5, Ni=1.9, Se=<0.5, Sr=317, SO4=40, Tl=<0.1, TDS=275, V=4.9, Ra=NA, U=NA GWA-2D (120.39-125.39): pH=6.7, Eh=280, k=0.00106996588730669, As=0.087 j, Sb=<0.5, Ba=54, Be=<0.1, B=<50, Cd=<0.08, Cl=5.5, Cr=1.7, Cr (IV)=1.5, Co=0.09 j, Fe=111, Mn=10.8, Mo=0.26 j, Ni=0.46 j, Se=<0.5, Sr=141, SO4=4.7, Tl=<0.1, TDS=85, V=4.4, Ra=1.111, U=<0.0005 GWA-2S (12.91-27.91): pH=5.1, Eh=379, k=0.000246, As=0.085 j, Sb=<0.5, Ba=46.7, Be=0.088 j, B=<50, Cd=<0.08, Cl=5.1, Cr=<0.5, Cr (IV)=<0.025, Co=5.9, Fe=120, Mn=160, Mo=<0.5, Ni=0.82, Se=<0.5, Sr=31.4, SO4=<1, Tl=0.022 j, TDS=<25, V=<0.3, Ra=1.305, U=<0.0005 GWA-3D (141.83-146.83): pH=7.7, Eh=142, k=0.000149890626791671, As=0.31, Sb=0.24 j, Ba=8.4, Be=<0.1, B=94.2, Cd=<0.08, Cl=3.5, Cr=0.78, Cr (IV)=0.29, Co=0.11, Fe=195, Mn=19.1, Mo=1.3, Ni=<0.5, Se=<0.5, Sr=123, SO4=9.4, Tl=<0.1, TDS=126, V=9.2, Ra=0.1786, U=0.00035 j GWA-3S (13-28): pH=5.9, Eh=225, k=0.000419, As=0.11, Sb=<0.5, Ba=28.2, Be=0.02 j, B=363, Cd=<0.08, Cl=11, Cr=0.22 j, Cr (IV)=<0.12 D3, Co=11.7, Fe=9230, Mn=2160, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=84.4, SO4=35.3, Tl=0.027 j, TDS=104, V=0.15 j,B, Ra=0.895, U=<0.0005 GWA-4D (94.85-99.85): pH=6.8, Eh=203, k=0.00257, As=0.084 j, Sb=<0.5, Ba=22.6, Be=<0.1, B=664, Cd=<0.08, Cl=8.2, Cr=0.19 j, Cr (IV)=<0.025, Co=0.053 j,B, Fe=<50, Mn=14.7, Mo=0.38 j,B, Ni=<0.5, Se=1.6, Sr=249, SO4=61.2, Tl=<0.1, TDS=177, V=4.3, Ra=1.342, U=0.00016 j GWA-4S (6.78-21.78): pH=5.4, Eh=337, k=0.00292, As=0.21, Sb=<0.5, Ba=49.6, Be=0.04 j, B=2180, Cd=0.075 j, Cl=10, Cr=0.66, Cr (IV)=0.016 j, Co=5.7, Fe=455, Mn=488, Mo=<0.5, Ni=0.49 j, Se=0.6, Sr=356, SO4=146, Tl=0.073 j, TDS=256, V=0.61, Ra=0.932, U=<0.0005 GWA-4BR (147-152): pH=8.3, Eh=41, k=NM, As=0.36, Sb=<0.5, Ba=<5, Be=0.037 j, B=388, Cd=<0.08, Cl=7, Cr=9, Cr (IV)=0.0094 j, Co=0.14, Fe=164, Mn=68, Mo=1.6, Ni=4.3, Se=2.2, Sr=134, SO4=41.4, Tl=<0.1, TDS=164, V=5.7, Ra=0.7976, U=0.00056 GWA-5D (110.85-115.85): pH=6.8, Eh=245, k=0.000141, As=0.42, Sb=0.11 j, Ba=123, Be=<0.1, B=606, Cd=<0.08, Cl=5.9, Cr=0.68, Cr (IV)=0.038, Co=0.1 B, Fe=126, Mn=53.1, Mo=0.78, Ni=<0.5, Se=<0.5, Sr=714, SO4=30, Tl=<0.1, TDS=128, V=7.9, Ra=0.648, U=0.000075 j GWA-5S (11.63-26.63): pH=5.4, Eh=286, k=0.00007257, As=0.23, Sb=<0.5, Ba=85.7, Be=0.059 j, B=<50, Cd=0.18, Cl=8.8, Cr=1.4, Cr (IV)=0.029, Co=20, Fe=1110, Mn=4310, Mo=<0.5, Ni=3.6, Se=<0.5, Sr=32.2, SO4=3.7, Tl=0.14 B, TDS=47, V=1.8, Ra=2.465, U=<0.0005 GWA-5BRA (138-143): pH=7.9, Eh=50, k=NM, As=1.8, Sb=0.2 j, Ba=12.9, Be=0.033 j, B=923, Cd=<0.08, Cl=7, Cr=2.3, Cr (IV)=0.036, Co=0.16, Fe=363, Mn=53.4, Mo=3.7, Ni=1.3, Se=<0.5, Sr=178, SO4=56.1, Tl=<0.1, TDS=177, V=3.7, Ra=0.2256, U=0.00057 GWA-6S (25.31-40.31): pH=3.6, Eh=621, k=0.000543, As=137 D3, Sb=<5 D3, Ba=<250 D3, Be=38.6 D3, B=<2500 D3, Cd=9.3 D3, Cl=3.1, Cr=6.6 D3, Cr (IV)=3.1, Co=3640 D3,M6, Fe=<2500 D3, Mn=166000, Mo=<5 D3, Ni=821 D3, Se=765 D3, Sr=1670, SO4=1790, Tl=1.5 D3,B, TDS=2670, V=<3 D3, Ra=0.3412, U=0.0061 GWA-6BR (171.5-176.5): pH=6.9, Eh=340, k=0.0000307, As=<1, Sb=<5, Ba=122, Be=0.1 j, B=<50, Cd=<0.8, Cl=4.3, Cr=<5, Cr (IV)=0.13 j+, Co=0.88 j, Fe=60 j+, Mn=129, Mo=2.2 j, Ni=<5, Se=<5, Sr=696, SO4=137, Tl=<1, TDS=357, V=4.3, Ra=0.296, U=0.0018 j GWA-6DA (121.67-126.67): pH=7.3, Eh=-41, k=6.62254143059898E-05, As=1.1, Sb=0.89, Ba=72.8, Be=0.013 j, B=36.7 j, Cd=<0.08, Cl=3.9, Cr=2.4, Cr (IV)=0.064 j,D3,M1, Co=0.39, Fe=721, Mn=433, Mo=1.1, Ni=1.1, Se=<0.5, Sr=868, SO4=270 M6, Tl=<0.1, TDS=629, V=1.2, Ra=1.055, U=0.0016 GWA-7S (17.65-32.65): pH=4.1, Eh=574, k=0.000182, As=1.7, Sb=<0.5, Ba=63.6, Be=1.1, B=<50, Cd=0.25, Cl=3.4, Cr=7.5, Cr (IV)=7, Co=74.6, Fe=152, Mn=333, Mo=<0.5, Ni=11.1, Se=14.1, Sr=18.4, SO4=108, Tl=0.11, TDS=175, V=0.35 B, Ra=2.035, U=0.000092 j GWA-7D (134.58-139.58): pH=6.4, Eh=244, k=0.00189831504234677, As=0.33 B, Sb=0.24 j, Ba=99.2, Be=0.038 j, B=<50, Cd=0.28, Cl=2.7, Cr=15, Cr (IV)=6.2, Co=0.12, Fe=<50, Mn=6.7, Mo=0.39 j, Ni=5.8, Se=6.6, Sr=526, SO4=105, Tl=0.061 j, TDS=278, V=8.5, Ra=1.61, U=0.00039 j GWA-8D (122.58-127.58): pH=6.6, Eh=325, k=0.000504570748260341, As=0.18, Sb=<0.5, Ba=185, Be=<0.1, B=<50, Cd=<0.08, Cl=2.8, Cr=5.8, Cr (IV)=0.46, Co=0.4, Fe=233, Mn=7.3, Mo=0.7, Ni=4.1, Se=<0.5, Sr=254, SO4=1.3, Tl=<0.1, TDS=101, V=7.1, Ra=NA, U=NA GWA-8S (46.45-61.45): pH=6, Eh=333, k=NM, As=0.13, Sb=0.14 j, Ba=231, Be=0.073 j, B=<50, Cd=0.091, Cl=67.4, Cr=8.6, Cr (IV)=4.2, Co=0.62, Fe=923, Mn=21.9, Mo=0.12 j, Ni=9.5, Se=<0.5, Sr=411, SO4=1.2, Tl=0.064 j, TDS=231, V=4, Ra=NA, U=NA GWA-9D (111.26-116.26): pH=6.8, Eh=286, k=0.00180991712517452, As=0.2 B, Sb=0.13 j, Ba=25.8, Be=0.016 j, B=<50, Cd=<0.08, Cl=3.7, Cr=1.5, Cr (IV)=0.84, Co=0.23, Fe=463, Mn=26.5, Mo=1.5, Ni=0.92, Se=<0.5, Sr=109, SO4=2.7, Tl=<0.1, TDS=73 D6, V=6.2, Ra=0.343, U=6.7E-05 j GWA-9S (8.93-23.93): pH=5.2, Eh=312, k=0.000275, As=0.88, Sb=<0.5, Ba=32.4, Be=0.11, B=32.5 j, Cd=0.052 j, Cl=9.6, Cr=0.7 B, Cr (IV)=0.021 j, Co=9.1, Fe=1130, Mn=719, Mo=0.14 j, Ni=2.7, Se=<0.5, Sr=60.7, SO4=21.1, Tl=0.063 j, TDS=87, V=0.77, Ra=1.333, U=<0.0005 GWA-9BR (144-149): pH=7.5, Eh=196, k=NM, As=0.44 B, Sb=0.76, Ba=22.4, Be=<0.1, B=<50, Cd=0.14, Cl=3.9, Cr=0.97 B, Cr (IV)=0.23, Co=0.069 j, Fe=69.2, Mn=20.4, Mo=9.5, Ni=0.74, Se=<0.5, Sr=90, SO4=8.1, Tl=<0.1, TDS=108, V=9.8, Ra=0.976, U=0.00017 j GWA-14DA (103.99-108.99): pH=7.7, Eh=156, k=NM, As=0.63 j+, Sb=0.96, Ba=30.8, Be=0.019 j, B=<50, Cd=<0.08, Cl=3.1, Cr=7.5, Cr (IV)=3.2, Co=0.25, Fe=306, Mn=18.8, Mo=1.4, Ni=3.5, Se=<0.5, Sr=144, SO4=6.3, Tl=0.034 j, TDS=115, V=11.7, Ra=NA, U=NA GWA-14S (18.77-33.77): pH=4.3, Eh=564, k=0.00103, As=<0.1, Sb=<0.5, Ba=99, Be=0.17, B=<50, Cd=<0.08, Cl=4, Cr=4.8, Cr (IV)=2.8, Co=3.5, Fe=61.5, Mn=30.7, Mo=<0.5, Ni=5.6, Se=<0.5, Sr=5.3, SO4=<1, Tl=0.041 j, TDS=27, V=0.27 j, Ra=NA, U=NA GWA-14D (108.7-113.7): pH=4.7, Eh=482, k=0.00010095336547139, As=NA, Sb=NA, Ba=NA, Be=NA, B=NA, Cd=NA, Cl=NA, Cr=NA, Cr (IV)=NA, Co=NA, Fe=NA, Mn=NA, Mo=NA, Ni=NA, Se=NA, Sr=NA, SO4=NA, Tl=NA, TDS=NA, V=NA, Ra=NA, U=NA GWA-15D (84.28-89.28): pH=6.2, Eh=262, k=0.000391931460844878, As=0.14, Sb=<0.5, Ba=74.9, Be=<0.1, B=<50, Cd=<0.08, Cl=13.8, Cr=1.6, Cr (IV)=1.5, Co=0.034 j,B, Fe=<50, Mn=4.7 j, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=268, SO4=4.5, Tl=<0.1, TDS=147, V=4.9, Ra=NA, U=NA GWA-15S (16.66-31.66): pH=5.9, Eh=401, k=0.000727, As=0.18, Sb=<0.5, Ba=27.9, Be=<0.1, B=28.4 j, Cd=<0.08, Cl=4.3, Cr=0.51, Cr (IV)=0.39, Co=0.12 B, Fe=40.9 j, Mn=122, Mo=0.17 j, Ni=3.6, Se=<0.5, Sr=157, SO4=10.9, Tl=<0.1, TDS=107, V=4.4, Ra=NA, U=NA GWA-16S (48.22-63.22): pH=6.4, Eh=228, k=0.000243, As=0.43, Sb=<0.5, Ba=32.4, Be=0.014 j, B=<50, Cd=<0.08, Cl=2, Cr=0.99, Cr (IV)=0.063, Co=0.87, Fe=672, Mn=608, Mo=8.2, Ni=2.8, Se=<0.5, Sr=199, SO4=1.2, Tl=<0.1, TDS=75, V=1.8, Ra=NA, U=NA GWA-16D (101.49-111.49): pH=6.2, Eh=365, k=0.000840039284795658, As=0.16, Sb=<0.5, Ba=26.2, Be=<0.1, B=<50, Cd=<0.08, Cl=1.9, Cr=1.1, Cr (IV)=0.46, Co=0.079 j, Fe=102, Mn=6.6, Mo=0.41 j,B, Ni=0.5 j, Se=<0.5, Sr=105, SO4=0.88 j, Tl=<0.1, TDS=73, V=8.2, Ra=NA, U=NA GWA-17S (71.71-86.71): pH=5.5, Eh=372, k=0.0000282, As=0.22, Sb=0.11 j, Ba=30, Be=0.018 j, B=<50, Cd=<0.08, Cl=1.2, Cr=4.5, Cr (IV)=3.6, Co=0.17, Fe=356, Mn=8.9, Mo=0.42 j, Ni=2, Se=<0.5, Sr=97.2, SO4=5.4, Tl=<0.1, TDS=60, V=2.3, Ra=1.007, U=<0.0005 GWA-17D (117.38-127.38): pH=6.8, Eh=291, k=0.000563324879620988, As=1.6, Sb=0.13 j, Ba=55.4, Be=0.038 j, B=<50, Cd=<0.08, Cl=2.1, Cr=3.5, Cr (IV)=1.4, Co=0.38, Fe=206, Mn=81, Mo=1 B, Ni=1.4, Se=<0.5, Sr=212, SO4=2.6, Tl=0.054 j, TDS=110, V=4.9, Ra=0.545, U=0.00071 GWA-18S (57.66-72.66): pH=7.3, Eh=293, k=0.000332, As=0.55, Sb=<0.5, Ba=26.3, Be=<0.1, B=<50, Cd=<0.08, Cl=3.5, Cr=0.39 j, Cr (IV)=0.17, Co=0.2, Fe=101, Mn=60.6, Mo=0.68 B, Ni=2.3, Se=<0.5, Sr=178, SO4=2, Tl=<0.1, TDS=86, V=5, Ra=NA, U=NA GWA-18D (89.54-94.54): pH=6.8, Eh=206, k=0.0863151319294595, As=0.5, Sb=<0.5, Ba=34.4, Be=<0.1, B=<50, Cd=<0.08, Cl=2.3, Cr=1.5, Cr (IV)=1.2, Co=0.23, Fe=40.8 j, Mn=18.3, Mo=0.63 B, Ni=0.9, Se=0.36 j, Sr=143, SO4=1.7, Tl=<0.1, TDS=81, V=9.6, Ra=NA, U=NA GWA-19S (41.87-56.87): pH=5.9, Eh=430, k=0.00000747, As=0.31 B, Sb=0.38 j, Ba=55.8, Be=0.05 j, B=<50, Cd=0.055 j, Cl=2, Cr=1.9, Cr (IV)=0.42, Co=0.2, Fe=210, Mn=23.1, Mo=0.43 j, Ni=2.3, Se=0.34 j, Sr=119, SO4=0.76 j, Tl=0.034 j, TDS=61, V=1, Ra=NA, U=NA GWA-21DA (177-182): pH=7.4, Eh=175, k=NM, As=0.2, Sb=0.24 j, Ba=9.1, Be=0.013 j, B=<50, Cd=<0.08, Cl=3.9, Cr=3.7, Cr (IV)=0.78, Co=0.11 B, Fe=92.9, Mn=11.5, Mo=1.3, Ni=1.9, Se=<0.5, Sr=118, SO4=2.3, Tl=<0.1, TDS=115, V=15.3, Ra=0.558, U=0.00023 jGWA-21S (25.88-40.88): pH=4.8, Eh=269, k=0.0000811, As=<0.1, Sb=<0.5, Ba=79.6, Be=0.15, B=<50, Cd=<0.08, Cl=4.4, Cr=3, Cr (IV)=1.9, Co=1.6, Fe=34.9 j, Mn=157, Mo=<0.5, Ni=6.1, Se=<0.5, Sr=24.6, SO4=1.1, Tl=0.022 j, TDS=<25, V=<0.3, Ra=0.582, U=<0.0005 GWA-21BR (201.67-206.67): pH=8.2, Eh=240, k=2.29504858336376E-05, As=1.6, Sb=0.43 j, Ba=17.1, Be=0.012 j, B=<50, Cd=<0.08, Cl=4.9, Cr=0.73, Cr (IV)=0.092, Co=0.3, Fe=192, Mn=278, Mo=7.1, Ni=0.66, Se=<0.5, Sr=154, SO4=2, Tl=<0.1, TDS=148, V=15.9, Ra=1.052, U=0.0009 GWA-22D (180-185): pH=6.7, Eh=285, k=0.000111398608608905, As=0.2, Sb=0.14 j, Ba=40, Be=<0.1, B=<50, Cd=0.067 j, Cl=2.3, Cr=26.9, Cr (IV)=0.45, Co=0.9, Fe=235, Mn=35.5, Mo=1.4, Ni=20.8, Se=<0.5, Sr=257, SO4=1.1, Tl=0.017 j, TDS=162, V=11, Ra=NA, U=NA GWA-22S (24.87-39.87): pH=5.1, Eh=365, k=0.0000118, As=0.36, Sb=0.14 j, Ba=81.6, Be=0.092 j, B=<50, Cd=0.17, Cl=1.9, Cr=0.46 j,B, Cr (IV)=0.05, Co=17.5, Fe=315, Mn=625, Mo=<0.5, Ni=2.6, Se=0.38 j, Sr=6.7, SO4=1.3, Tl=0.096 j, TDS=<25, V=0.78, Ra=NA, U=NA GWA-23S (23.05-38.05): pH=4.6, Eh=496, k=0.00000883, As=0.11, Sb=0.4 j, Ba=38.8, Be=0.05 j, B=<50, Cd=<0.08, Cl=3.2, Cr=1.3, Cr (IV)=0.33 M1, Co=0.56, Fe=108, Mn=27.6, Mo=<0.5, Ni=3.9, Se=<0.5, Sr=5.1, SO4=1.2, Tl=0.032 j, TDS=<25, V=0.33, Ra=0.977, U=<0.0005 GWA-24D (122.95-127.95): pH=7.5, Eh=234, k=0.000324423457844836, As=0.24, Sb=<0.5, Ba=28.4, Be=<0.1, B=<50, Cd=<0.08, Cl=2.4, Cr=2.3, Cr (IV)=1.3, Co=0.23, Fe=318, Mn=17.9, Mo=0.41 j, Ni=0.71, Se=0.35 j, Sr=93.6, SO4=2.2, Tl=<0.1, TDS=89, V=13.3, Ra=1.103, U=<0.0005 GWA-24BR (160.49-165.39): pH=8.3, Eh=-16, k=6.61540354022338E-05, As=0.66, Sb=0.32 j, Ba=19.1, Be=<0.1, B=<50, Cd=<0.08, Cl=5.7, Cr=2.2, Cr (IV)=0.12, Co=0.2, Fe=436, Mn=34.6, Mo=4.3, Ni=2.1, Se=<0.5, Sr=96.6, SO4=8.2, Tl=<0.1, TDS=110, V=9.3, Ra=NA, U=NA GWA-26S (45.44-70.44): pH=7, Eh=354, k=0.0000571, As=0.27, Sb=0.17 j, Ba=13.2, Be=0.015 j, B=<50, Cd=<0.08, Cl=1.9, Cr=2.8, Cr (IV)=0.62, Co=0.26, Fe=468, Mn=22, Mo=0.83, Ni=1, Se=<0.5, Sr=69.9, SO4=1, Tl=<0.1, TDS=53, V=3.2, Ra=0.775, U=<0.0005 GWA-26D (114.85-129.85): pH=7.4, Eh=183, k=0.000366584669619448, As=0.66, Sb=0.16 j, Ba=14.8, Be=<0.1, B=<50, Cd=<0.08, Cl=4.7, Cr=0.57, Cr (IV)=0.063, Co=0.31, Fe=88, Mn=176, Mo=16.3, Ni=0.69, Se=<0.5, Sr=86.5, SO4=7.3, Tl=<0.1, TDS=102, V=4.3, Ra=0.647, U=0.000072 j CCR-1S (17.98-32.98): pH=5.1, Eh=511, k=NM, As=<0.1, Sb=<0.5, Ba=40.9, Be=0.067 j, B=<50, Cd=<0.08, Cl=1.5, Cr=2.1 j+, Co=9.9, Mo=0.14 j, Se=<0.5, SO4=2.1, Tl=0.036 j, TDS=32, Ra=0.028 CCR-1DA (80.95-85.95): pH=6.1, Eh=243, k=NM, As=0.17, Sb=<0.5, Ba=65.2, Be=<0.1, B=<50, Cd=<0.08, Cl=2.3, Cr=0.37 j, Co=0.9, Mo=1.8, Se=<0.5, SO4=1.3, Tl=<0.1, TDS=114, Ra=1.055 CCR-1D (87.35-92.35): pH=7.2, Eh=154, k=NM, As=0.57, Sb=<0.5, Ba=99.4, Be=<0.1, B=<50, Cd=<0.08, Cl=3.2, Cr=0.45 j, Co=0.26, Mo=1.7, Se=<0.5, SO4=25.4, Tl=<0.1, TDS=165, Ra=-0.219 CCR-2S (16.23-31.23): pH=5.6, Eh=290, k=NM, As=<0.1, Sb=<0.5, Ba=28, Be=0.043 j, B=<50, Cd=<0.08, Cl=3.4, Cr=0.5, Co=0.32, Mo=<0.5, Se=0.44 j, SO4=1.3, Tl=0.02 j, TDS=<25, Ra=1.036 CCR-2D (125.71-130.71): pH=6.8, Eh=123, k=NM, As=0.66, Sb=0.25 j, Ba=142, Be=<0.1, B=69.2, Cd=<0.08, Cl=5.4, Cr=0.32 j, Co=0.64, Mo=1.5, Se=<0.5, SO4=15.6, Tl=<0.1, TDS=301, Ra=1.215 CCR-3DA (117.92-122.92): pH=7.1, Eh=262, k=NM, As=0.66, Sb=0.41 j, Ba=14.6, Be=<0.1, B=<50, Cd=<0.08, Cl=6.8, Cr=2.6, Co=0.05 j,B, Mo=3.9, Se=0.34 j, SO4=10.1, Tl=<0.1, TDS=201, Ra=0.548 CCR-3D (114.63-119.63): pH=12.8, Eh=31, k=NM, As=0.098 j, Sb=<0.5, Ba=893, Be=<0.1, B=<50, Cd=<0.08, Cl=3.5, Cr=0.61, Co=0.031 j, Mo=4.8, Se=0.34 j, SO4=0.91 j, Tl=<0.1, TDS=1120, Ra=3.42 CCR-3S (26.75-41.75): pH=5.2, Eh=301, k=NM, As=0.3, Sb=<0.5, Ba=19.4, Be=0.11, B=417, Cd=0.28, Cl=8.7, Cr=0.42 j, Co=52.3, Mo=<0.5, Se=2.3, SO4=115, Tl=0.089 j, TDS=252, Ra=0.39 CCR-4DA (131.83-136.83): pH=6.7, Eh=193, k=NM, As=0.7, Sb=0.17 j, Ba=124, Be=<0.1, B=43.7 j, Cd=<0.08, Cl=4.9, Cr=0.53, Co=0.43, Mo=1, Se=<0.5, SO4=169, Tl=0.055 j, TDS=401, Ra=0.776 CCR-4D (146.3-151.3): pH=11.5, Eh=-36, k=NM, As=0.25, Sb=0.21 j, Ba=174, Be=<0.1, B=39.3 j, Cd=<0.08, Cl=4.3, Cr=1.5, Co=0.32, Mo=2.2, Se=0.33 j, SO4=148, Tl=<0.1, TDS=342, Ra=1.132 CCR-4SA (23.29-38.29): pH=3.6, Eh=609, k=NM, As=88.3, Sb=<10, Ba=<100 D3, Be=34, B=<1000 D3, Cd=7.7, Cl=6.4, Cr=<10, Co=3670, Mo=<10, Se=526, SO4=1810 M6, Tl=1.9 j, TDS=2650, Ra=1.252 CCR-5D (123.71-128.71): pH=6.9, Eh=226, k=NM, As=0.47, Sb=<0.5, Ba=19.1, Be=<0.1, B=47.7 j, Cd=<0.08, Cl=3.4, Cr=0.44 j, Co=0.29, Mo=0.92, Se=<0.5, SO4=47, Tl=<0.1, TDS=203, Ra=-0.0138 CCR-5S (14.54-29.54): pH=4.1, Eh=479, k=NM, As=4.7, Sb=<0.5, Ba=15.3, Be=6.9, B=542, Cd=5.6, Cl=6.4, Cr=3.2 j, Co=805, Mo=<0.5, Se=41.7, SO4=684, Tl=2.1, TDS=1160, Ra=1.632 CCR-6D (127.65-132.65): pH=6.9, Eh=112, k=NM, As=0.13, Sb=<0.5, Ba=41.9, Be=<0.1, B=33 j, Cd=<0.08, Cl=2, Cr=0.23 j, Co=0.11, Mo=0.97, Se=<0.5, SO4=4.9, Tl=<0.1, TDS=109, Ra=0.2533 CCR-6S (8.77-23.77): pH=2.8, Eh=635, k=NM, As=1.9, Sb=<0.5, Ba=20.8, Be=0.83, B=686, Cd=0.09, Cl=4.7, Cr=1.3, Co=34.5, Mo=<0.5, Se=5.7, SO4=1320, Tl=3.1, TDS=2390, Ra=0.398 CCR-7D (131.6-136.6): pH=7.8, Eh=164, k=NM, As=0.13, Sb=<0.5, Ba=32.7, Be=<0.1, B=709, Cd=<0.08, Cl=5, Cr=0.65, Co=0.18, Mo=0.6, Se=<0.5, SO4=87.7, Tl=<0.1, TDS=189, Ra=0.414 CCR-7S (7.71-22.71): pH=5.3, Eh=429, k=NM, As=0.15, Sb=<0.5, Ba=19.8, Be=0.12, B=1990, Cd=0.094, Cl=9.4, Cr=0.29 j, Co=4.5, Mo=<0.5, Se=0.8, SO4=164, Tl=<0.1, TDS=265, Ra=0.4304 CCR-8D (123.65-128.65): pH=6.5, Eh=41, k=NM, As=0.12, Sb=<0.5, Ba=3.7 j, Be=<0.1, B=1290, Cd=<0.08, Cl=7, Cr=0.27 j, Co=0.13, Mo=0.26 j, Se=0.37 j, SO4=88.5, Tl=<0.1, TDS=189, Ra=0.843 CCR-8S (7.67-22.67): pH=5.2, Eh=386, k=NM, As=0.62, Sb=<0.5, Ba=21.9, Be=0.064 j, B=1570, Cd=0.07 j, Cl=10.5, Cr=0.35 j, Co=41.3, Mo=0.12 j, Se=1.2, SO4=165, Tl=0.1, TDS=290, Ra=0.391 CCR-9S (7.38-22.38): pH=4.9, Eh=372, k=NM, As=0.14, Sb=<0.5, Ba=13.6, Be=0.079 j, B=1240, Cd=<0.08, Cl=9.6, Cr=0.11 j, Co=14.8, Mo=<0.5, Se=0.85, SO4=157, Tl=0.089 j, TDS=274, Ra=0.876 CCR-9D (94.75-99.75): pH=7.5, Eh=-13, k=NM, As=0.096 j, Sb=0.11 j, Ba=30.9, Be=<0.1, B=1980, Cd=<0.08, Cl=9.2, Cr=0.25 j, Co=0.2, Mo=4.3, Se=<0.5, SO4=157, Tl=<0.1, TDS=303, Ra=0.6976 CCR-11DA (88.59-93.59): pH=6.6, Eh=218, k=NM, As=0.074 j, Sb=<0.5, Ba=61.3, Be=<0.1, B=1470, Cd=<0.08, Cl=7.8, Cr=0.31 j, Co=1.9, Mo=0.7, Se=0.37 j, SO4=85.6, Tl=<0.1, TDS=167, Ra=0.352 CCR-11D (112.74-117.74): pH=12.9, Eh=224, k=NM, As=0.13, Sb=0.22 j, Ba=1640, Be=<0.1, B=28.4 j, Cd=<0.08, Cl=2.6, Cr=3.8, Co=0.11, Mo=5.2, Se=<0.5, SO4=<1, Tl=<0.1, TDS=1800, Ra=11.36 CCR-11S (10.78-25.78): pH=6.3, Eh=284, k=NM, As=0.059 j, Sb=<0.5, Ba=60.6, Be=<0.1, B=117, Cd=<0.08, Cl=3.2, Cr=0.47 j, Co=0.35, Mo=4.1, Se=1.2, SO4=81.9, Tl=0.076 j, TDS=253, Ra=0.545 CCR-14S (13.19-28.19): pH=4.8, Eh=281, k=NM, As=0.09 j, Sb=<0.5, Ba=46.5, Be=<0.1, B=938, Cd=0.075 j, Cl=9.1, Cr=0.33 j, Co=13.4, Mo=<0.5, Se=0.6, SO4=51.8, Tl=0.068 j, TDS=132, Ra=1.063 CCR-14D (124.71-129.71): pH=8.4, Eh=63, k=NM, As=0.19, Sb=0.51, Ba=25, Be=<0.1, B=571, Cd=<0.08, Cl=7.5, Cr=0.82, Co=0.14, Mo=2.8, Se=<0.5, SO4=43.5, Tl=<0.1, TDS=158, Ra=0.706 CCR-16S (13.74-28.74): pH=6.6, Eh=268, k=NM, As=0.46, Sb=<0.5, Ba=82.2, Be=<0.1, B=1110, Cd=<0.08, Cl=18.2, Cr=15.9, Co=2.1, Mo=0.28 j, Se=0.62, SO4=111, Tl=0.036 j, TDS=332, Ra=0.51 CCR-16D (70.69-75.69): pH=6.9, Eh=157, k=NM, As=0.46, Sb=<0.5, Ba=4.2 j, Be=<0.1, B=406, Cd=<0.08, Cl=6.6, Cr=0.38 j, Co=0.1, Mo=1.2, Se=<0.5, SO4=39.3, Tl=<0.1, TDS=161, Ra=0.2963 CCR-17S (16.06-31.06): pH=6.2, Eh=441, k=NM, As=0.072 j, Sb=<0.5, Ba=55.2, Be=<0.1, B=1310, Cd=<0.08, Cl=26.6, Cr=1, Co=0.8, Mo=<0.5, Se=<0.5, SO4=45.2, Tl=0.11, TDS=188, Ra=0.667 CCR-17D (93.37-98.37): pH=7.1, Eh=146, k=NM, As=0.24, Sb=<0.5, Ba=<5, Be=<0.1, B=1460, Cd=<0.08, Cl=11.7, Cr=0.11 j, Co=0.095 j, Mo=0.45 j, Se=<0.5, SO4=44.3, Tl=0.021 j, TDS=278, Ra=0.6101 CCR-18D (188.13-193.13): pH=6.4, Eh=-19, k=NM, As=0.14, Sb=<0.5, Ba=79.2, Be=<0.1, B=234, Cd=<0.08, Cl=53, Cr=0.26 j, Co=0.32, Mo=1.2, Se=<0.5, SO4=55.3, Tl=<0.1, TDS=248, Ra=0.335 CCR-18S (12.21-27.21): pH=4.5, Eh=559, k=NM, As=0.37, Sb=<0.5, Ba=20.8, Be=0.93, B=51.2, Cd=0.073 j, Cl=22.3, Cr=0.68, Co=21.4, Mo=<0.5, Se=3.3, SO4=121, Tl=0.034 j, TDS=213, Ra=0.927 CCR-20S (11.74-26.74): pH=4.8, Eh=423, k=NM, As=<0.1, Sb=<0.5, Ba=78.8, Be=0.41, B=218, Cd=<0.08, Cl=41, Cr=1.6, Co=11, Mo=<0.5, Se=0.53, SO4=15.6, Tl=0.026 j, TDS=112, Ra=1.49 CCR-20D (180.99-185.99): pH=6.8, Eh=219, k=NM, As=0.067 j, Sb=<0.5, Ba=42.2, Be=<0.1, B=382, Cd=<0.08, Cl=66.2, Cr=0.13 j, Co=0.6, Mo=0.7, Se=<0.5, SO4=37.6, Tl=<0.1, TDS=255, Ra=0.294 CCR-21S (21.35-36.35): pH=4.9, Eh=280, k=NM, As=0.12, Sb=<0.5, Ba=567, Be=2.1, B=1760, Cd=0.74, Cl=109, Cr=0.67, Co=56.6, Mo=<0.5, Se=0.72, SO4=18.1, Tl=0.17, TDS=209, Ra=0.875 CCR-21D (149.22-154.22): pH=6.5, Eh=-21, k=NM, As=<0.1, Sb=<0.5, Ba=118, Be=<0.1, B=340, Cd=<0.08, Cl=48.5, Cr=0.27 j, Co=0.05 j, Mo=<0.5, Se=<0.5, SO4=35.3, Tl=<0.1, TDS=276, Ra=0.901 CCR-22S (23.45-38.45): pH=4.7, Eh=345, k=NM, As=<0.1, Sb=<0.5, Ba=115, Be=0.18, B=<50, Cd=<0.08, Cl=13.7, Cr=0.6, Co=3.3, Mo=<0.5, Se=<0.5, SO4=3.4, Tl=0.068 j, TDS=45, Ra=0.458 CCR-22DA (165.91-170.91): pH=8.9, Eh=110, k=NM, As=2.1, Sb=0.39 j, Ba=3.5 j, Be=0.025 j, B=<50, Cd=<0.08, Cl=8.8, Cr=1.9, Co=0.054 j, Mo=8.1, Se=<0.5, SO4=13.9, Tl=0.024 j, TDS=150, Ra=0.642 CCR-23S (21.04-36.04): pH=5.4, Eh=303, k=NM, As=<0.1, Sb=<0.5, Ba=73.6, Be=0.047 j, B=<50, Cd=<0.08, Cl=4.7, Cr=0.37 j, Co=1.2, Mo=<0.5, Se=<0.5, SO4=0.9 j, Tl=<0.1, TDS=47, Ra=0.975 CCR-23D (119.11-124.11): pH=6.8, Eh=138, k=NM, As=0.077 j, Sb=<0.5, Ba=7.5, Be=<0.1, B=<50, Cd=<0.08, Cl=2.9, Cr=0.32 j, Co=0.36, Mo=0.9, Se=<0.5, SO4=1.8, Tl=<0.1, TDS=124, Ra=0.61 AL131 (UNK-UNK): pH=6.9, Eh=384, k=NM, As=<0.5, Sb=<0.5, Ba=25.4, Be=<0.2, B=<5, Cd=<0.08, Cl=2.3, Cr=1.1, Cr (IV)=0.78, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=59.5, SO4=<2, Tl=<0.1, TDS=75, V=7.9, Ra=NA, U=NA AL131 (UNK-UNK): pH=6.9, Eh=384, k=NM, As=<0.5, Sb=<0.5, Ba=25.4, Be=<0.2, B=<5, Cd=<0.08, Cl=2.3, Cr=1.1, Cr (IV)=0.78, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=59.5, SO4=<2, Tl=<0.1, TDS=75, V=7.9, Ra=NA, U=NA AL1 (UNK-UNK): pH=6.9, Eh=368, k=NM, As=<0.5, Sb=<0.5, Ba=24.6, Be=<0.2, B=<5, Cd=<0.08, Cl=5.1, Cr=<0.5, Cr (IV)=0.17, Co=<0.5, Fe=<50, Mn=1.1, Mo=0.63, Ni=<0.5, Se=<0.5, Sr=124, SO4=<2, Tl=<0.1, TDS=100, V=6.3, Ra=NA, U=NA AL133 (UNK-UNK): pH=7, Eh=314, k=NM, As=<0.5, Sb=<0.5, Ba=20.1, Be=<0.2, B=<5, Cd=<0.08, Cl=3.1, Cr=0.95, Cr (IV)=0.72, Co=<0.5, Fe=273, Mn=5.2, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=89.9, SO4=<2, Tl=<0.1, TDS=99, V=7.4, Ra=NA, U=NA AL88 (UNK-UNK): pH=6.4, Eh=392, k=NM, As=<0.5, Sb=<0.5, Ba=23.6, Be=<0.2, B=<5, Cd=<0.08, Cl=2.1, Cr=1.4, Cr (IV)=0.82, Co=<0.5, Fe=136, Mn=34.6, Mo=<0.5, Ni=0.62, Se=<0.5, Sr=83.2, SO4=<2, Tl=<0.1, TDS=63, V=<1, Ra=NA, U=NA AL85 (UNK-UNK): pH=6.7, Eh=425, k=NM, As=<0.5, Sb=<0.5, Ba=13, Be=<0.2, B=<5, Cd=<0.08, Cl=1.4, Cr=2.6, Cr (IV)=2.5, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=69.2, SO4=<2, Tl=<0.1, TDS=67, V=9.6, Ra=NA, U=NA AL97 (UNK-UNK): pH=8, Eh=243, k=NM, As=1.4, Sb=<0.5, Ba=6.2, Be=<0.2, B=8, Cd=<0.08, Cl=1.8, Cr=<0.5, Cr (IV)=<0.03, Co=<0.5, Fe=<50, Mn=5.3, Mo=4.7, Ni=<0.5, Se=<0.5, Sr=112, SO4=7, Tl=<0.1, TDS=102, V=<1, Ra=NA, U=NA AL111 (UNK-UNK): pH=6.6, Eh=336, k=NM, As=<0.5, Sb=<0.5, Ba=26.2, Be=<0.2, B=<5, Cd=<0.08, Cl=2.4, Cr=1.3, Cr (IV)=1.1, Co=<0.5, Fe=<50, Mn=1.2, Mo=<0.5, Ni=0.56, Se=<0.5, Sr=120, SO4=2.8, Tl=<0.1, TDS=109, V=10.4, Ra=NA, U=NA OW-6 OW-5 OW-4 OW-3 OW-2 OW-8 OW-7 OW-6 AB-23BRU AB-25BRU GWA-24S GWA-6D CCR-BG-1D CCR-22D DATA NOTES: DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFER TO ANALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DATA SHOWN ON MAP IS THE MOST RECENT DATA AVAILABLE THROUGH Q3 2017. NA=NOT ANALYZED NM=NOT MEASURED DATA IS EXCLUDED FOR THE WELLS WITH A MEASURED TURBIDITY GREATER THAN 10 NTU's AND /OR HIGH pH VALUES THAT MAY INDICATE POSSIBLE GROUT INTRUSION INTO THE WELL SCREEN. Well ID (SCREENED INTERVAL IN ft. bgs): pH (S.U.), Eh (mV), k= hydraulic conductivity (ft/day) As=Arsenic (ug/L): Ba=Barium (ug/L): B=Boron (ug/L): Be=Beryllium(ug/L): Cd=Cadmium(ug/L): Cl=Chloride (mg/L): Cr=Total Chromium (ug/L): Cr (VI)=Hexavalent Chromium (ug/L):Co=Cobalt (ug/L): Fe=Iron (ug/L): Mn=Manganese (ug/L): Mo=Molybdenum(ug/L): Ni=Nickel (ug/L): Sb=Antimony(ug/L): Ra= Radium Se=Selenium(ug/L): Sr=Strontium (ug/L): SO4=Sulfate (mg/L): Tl=Thallium (ug/L): TDS=Total Dissolved Solids (mg/L): V=Vanadium (ug/L): U=Uranium (ug/L) WELL KEY P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\DE ALLEN CSAUP BASE MAP CALL OUTS_1-12-18.dwg AB-21BRL (226.19-231.19): pH=8.4, Eh=27, k=NM, As=1.8, Sb=0.14 j, Ba=4.5 j, Be=0.01 j, B=26.4 j, Cd=<0.08, Cl=4.6, Cr=0.33 j,B, Cr (IV)=0.0089 j, Co=0.11, Fe=104, Mn=74.1, Mo=11.1, Ni=0.61, Se=<0.5, Sr=90.5, SO4=12.1, Tl=<0.1, TDS=127, V=2.3, Ra=0.777, U=0.0015 GWA-24SA (33-48): pH=5.5, Eh=393, As=0.069 j, Sb=0.12 j, Be=0.057 j, B=<50, Cd=0.031 j, Cr=1.5, Cr (IV)=0.02 j, Co=2, Fe=133 B, Mn=143, Mo=<0.5, Ni=4.9, Se=<0.5, Sr=11, SO4=<1, Tl=<0.1, TDS=37 D6, V=0.4 B, Ra=NA, U=NA CCR-BG-1S (24.8-39.8): pH=6.1, Eh=274, As=<0.1, Sb=<0.5, Be=0.027 j, B=<50, Cd=<0.08, Cr=0.42 j, Cr (IV)=NA, Co=5.7, Fe=NA, Mn=NA, Mo=<0.5, Ni=NA, Se=<0.5, Sr=NA, SO4=2, Tl=0.067 j, TDS=<25, V=NA, Ra=0.663, U=NA CCR-BG-1DA (UNK-UNK): pH=7.3, Eh=11, As=0.3, Sb=0.6, Be=<0.1, B=<50, Cd=<0.08, Cr=0.6, Cr (IV)=NA, Co=0.24, Fe=NA, Mn=NA, Mo=10.5, Ni=NA, Se=<0.5, Sr=NA, SO4=<1, Tl=<0.1, TDS=130, V=NA, Ra=0.683, U=NA GWA-6BRA (185-190): pH=6.7, Eh=261, As=0.16, Sb=<0.5, Be=<0.1, B=30.2 j, Cd=<0.08, Cr=1.7, Cr (IV)=0.0095 j, Co=1.6, Fe=296, Mn=124, Mo=1.9, Ni=2.1, Se=<0.5, Sr=617, SO4=124, Tl=<0.1, TDS=363, V=5.1, Ra=0.956, U=0.0013 AB-32S (54.64-69.64): pH=5.3, Eh=138, k=0.00000289, As=0.76, Sb=<0.5, Ba=18.2, Be=<0.1, B=<50, Cd=<0.08, Cl=9, Cr=0.48 j, Cr (IV)=1.1, Co=19.7, Fe=32700, Mn=5420, Mo=0.15 j, Ni=0.77, Se=<0.5, Sr=37.3, SO4=2.7, Tl=0.021 j, TDS=36 D6, V=0.53 B, Ra=NA, U=NA PH WELL (UNK-UNK): pH=6.1, Eh=260, k=NM, As=0.11 j+, Sb=<0.5, Ba=187, Be=<0.1, B=309, Cd=<0.08, Cl=88.2, Cr=0.59, Cr (IV)=<0.025, Co=0.064 j, Fe=1160 j, Mn=17.8 j, Mo=<0.5, Ni=0.46 j, Se=<0.5, Sr=778, SO4=49.2, Tl=<0.1, TDS=314, V=3.4, Ra=NA, U=NA NOTE: 1.DISPLAYED WATER SUPPLY WELL LOCATIONS (AND SAMPLE ANALYTICAL RESULTS) REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015.PIPING OBTAINED FROM DUKE ENERGY, STANTEC, AND SYNTERRA AOW INSPECTION. AB-21BR FIGURE 14-104 COMPREHENSIVE GROUNDWATER DATA (SHEET 2 OF 2) ALLEN STEAM STATION 253 PLANT ALLEN RD BELMONT, NORTH CAROLINA DUKE ENERGY CAROLINAS FIG 14-104 (GROUNDWATER-PG2) L. DRAGO JOHN CHASTAIN PROJECT MANAGER: LAYOUT NAME: DRAWN BY: CHECKED BY: C. SUTTELL DATE: DATE: www.synterracorp.com 148 River Street, Suite 220 Greenville, South Carolina 29601 864-421-9999 GRAPHIC SCALE 240120600240 (IN FEET) 1/16/2018 1/16/2018 AL100 (UNK-UNK): pH=7.2, Eh=485, k=NM, As=<0.5, Sb=<0.5, Ba=8.1, Be=<0.2, B=<5, Cd=<0.08, Cl=4.5, Cr=0.71, Cr (IV)=0.56, Co=<0.5, Fe=<50, Mn=<0.5, Mo=0.89, Ni=<0.5, Se=<0.5, Sr=161, SO4=2.8, Tl=<0.1, TDS=150, V=12.8, Ra=NA, U=NA AL101 (UNK-UNK): pH=6.6, Eh=373, k=NM, As=<0.5, Sb=<0.5, Ba=10.5, Be=<0.2, B=<5, Cd=<0.08, Cl=2.2, Cr=2.9, Cr (IV)=0.61, Co=<0.5, Fe=<50, Mn=6.9, Mo=<0.5, Ni=1.6, Se=<0.5, Sr=72.5, SO4=<0.002, Tl=<0.1, TDS=40, V=4, Ra=NA, U=NA AL102 (UNK-UNK): pH=6.4, Eh=431, k=NM, As=<0.5, Sb=<0.5, Ba=44.9, Be=<0.2, B=9.5, Cd=<0.08, Cl=5.7, Cr=2.6, Cr (IV)=1.4, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=0.79, Se=<0.5, Sr=116, SO4=<2, Tl=<0.1, TDS=109, V=9, Ra=NA, U=NA AL11 (UNK-UNK): pH=6.5, Eh=408, k=NM, As=<0.5, Sb=<0.5, Ba=34.1, Be=<0.2, B=<5, Cd=<0.08, Cl=3.7, Cr=2.6, Cr (IV)=1.6, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=0.64, Se=<0.5, Sr=153, SO4=2.2, Tl=<0.1, TDS=118, V=5.2, Ra=NA, U=NA AL110 (UNK-UNK): pH=6.8, Eh=431, k=NM, As=<0.5, Sb=<0.5, Ba=16.5, Be=<0.2, B=<5, Cd=<0.08, Cl=4.4, Cr=2.1, Cr (IV)=1.7, Co=<0.5, Fe=<50, Mn=<0.5, Mo=1, Ni=<0.5, Se=<0.5, Sr=110, SO4=2, Tl=<0.1, TDS=110, V=11.3, Ra=NA, U=NA AL113 (UNK-UNK): pH=6.9, Eh=968, k=NM, As=<0.5, Sb=<0.5, Ba=30.5, Be=<0.2, B=<5, Cd=<0.08, Cl=5.3, Cr=2.8, Cr (IV)=2, Co=<0.5, Fe=<50, Mn=0.66, Mo=0.64, Ni=<0.5, Se=<0.5, Sr=169, SO4=2.2, Tl=<0.1, TDS=108, V=11.4, Ra=NA, U=NA AL114 (UNK-UNK): pH=6.9, Eh=980, k=NM, As=<0.5, Sb=<0.5, Ba=26.1, Be=<0.2, B=<5, Cd=<0.08, Cl=5, Cr=2.7, Cr (IV)=2.2, Co=<0.5, Fe=<50, Mn=0.97, Mo=0.64, Ni=<0.5, Se=<0.5, Sr=162, SO4=2.3, Tl=<0.1, TDS=128, V=10.5, Ra=NA, U=NA AL115 (UNK-UNK): pH=7.6, Eh=518, k=NM, As=0.82, Sb=<0.5, Ba=19.9, Be=<0.2, B=38.8, Cd=<0.08, Cl=19.1, Cr=0.63, Cr (IV)=0.16, Co=<0.5, Fe=238, Mn=23.9, Mo=2.7, Ni=0.89, Se=<0.5, Sr=3400, SO4=373, Tl=<0.1, TDS=675.0001, V=5.3, Ra=NA, U=NA AL117 (UNK-UNK): pH=6.4, Eh=397, k=NM, As=<0.5, Sb=<0.5, Ba=179, Be=<0.2, B=42, Cd=<0.08, Cl=11.7, Cr=0.95, Cr (IV)=0.15, Co=<0.5, Fe=118, Mn=2.6, Mo=0.68, Ni=1.2, Se=1.8, Sr=463, SO4=38.3, Tl=<0.1, TDS=254, V=5.4, Ra=NA, U=NA AL118 (UNK-UNK): pH=6.4, Eh=430, k=NM, As=<0.5, Sb=<0.5, Ba=49, Be=<0.2, B=<5, Cd=<0.08, Cl=3, Cr=2.8, Cr (IV)=2.3, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=1.1, Se=<0.5, Sr=183, SO4=<2, Tl=<0.1, TDS=107, V=10.6, Ra=NA, U=NA AL119 (UNK-UNK): pH=7.4, Eh=362, k=NM, As=1.2, Sb=<0.5, Ba=9.2, Be=<0.2, B=7.4, Cd=<0.08, Cl=1.8, Cr=1.3, Cr (IV)=0.056, Co=<0.5, Fe=144, Mn=6.6, Mo=3.4, Ni=0.81, Se=<0.5, Sr=129, SO4=5.6, Tl=<0.1, TDS=114, V=3.1, Ra=NA, U=NA AL12 (UNK-UNK): pH=6.1, Eh=464, k=NM, As=<0.5, Sb=<0.5, Ba=58.2, Be=<0.2, B=<5, Cd=<0.08, Cl=8.4, Cr=1.7, Cr (IV)=1.5, Co=<0.5, Fe=<50, Mn=0.8, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=286, SO4=4.5, Tl=<0.1, TDS=146, V=2.4, Ra=NA, U=NA AL121 (UNK-UNK): pH=6.9, Eh=354, k=NM, As=<0.5, Sb=<0.5, Ba=11.8, Be=<0.2, B=<5, Cd=<0.08, Cl=2.2, Cr=2, Cr (IV)=1.7, Co=<0.5, Fe=<50, Mn=1, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=67.1, SO4=<2, Tl=<0.1, TDS=73, V=13.1, Ra=NA, U=NA AL123 (UNK-UNK): pH=6.3, Eh=440, k=NM, As=<0.5, Sb=<0.5, Ba=74.6, Be=<0.2, B=<5, Cd=<0.08, Cl=11.2, Cr=2.2, Cr (IV)=2, Co=<0.5, Fe=<50, Mn=0.74, Mo=<0.5, Ni=1.1, Se=<0.5, Sr=173, SO4=<2, Tl=<0.1, TDS=160, V=7.6, Ra=NA, U=NA AL126 (UNK-UNK): pH=6.9, Eh=399, k=NM, As=<0.5, Sb=<0.5, Ba=26.2, Be=<0.2, B=<5, Cd=<0.08, Cl=2.2, Cr=4.4, Cr (IV)=4.2, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=118, SO4=2.1, Tl=<0.1, TDS=103, V=12, Ra=NA, U=NA AL127 (UNK-UNK): pH=6.8, Eh=357, k=NM, As=<0.5, Sb=<0.5, Ba=17, Be=<0.2, B=<5, Cd=<0.08, Cl=2.3, Cr=5, Cr (IV)=4.4, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=130, SO4=<2, Tl=<0.1, TDS=109, V=10.6, Ra=NA, U=NA AL130 (UNK-UNK): pH=6.4, Eh=378, k=NM, As=<0.5, Sb=<0.5, Ba=43.4, Be=<0.2, B=<5, Cd=<0.08, Cl=2, Cr=2.4, Cr (IV)=2.4, Co=<0.5, Fe=<50, Mn=1.1, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=106, SO4=<2, Tl=<0.1, TDS=110, V=7.9, Ra=NA, U=NA AL135 (UNK-UNK): pH=6.5, Eh=394, k=NM, As=<0.5, Sb=<0.5, Ba=48.8, Be=<0.2, B=<5, Cd=<0.08, Cl=4.1, Cr=2.4, Cr (IV)=2.1, Co=<0.5, Fe=88.6, Mn=3, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=180, SO4=2.1, Tl=<0.1, TDS=107, V=7, Ra=NA, U=NA AL136 (UNK-UNK): pH=6.2, Eh=432, k=NM, As=<0.5, Sb=<0.5, Ba=117, Be=<0.2, B=<5, Cd=<0.08, Cl=21.7, Cr=3.3, Cr (IV)=2.8, Co=<0.5, Fe=52.8, Mn=0.82, Mo=<0.5, Ni=0.57, Se=<0.5, Sr=378, SO4=2.1, Tl=<0.1, TDS=233, V=4.5, Ra=NA, U=NA AL138 (UNK-UNK): pH=6.6, Eh=349, k=NM, As=<0.5, Sb=<0.5, Ba=51.4, Be=<0.2, B=<5, Cd=<0.08, Cl=10.8, Cr=1.4, Cr (IV)=1.2, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=215, SO4=<2, Tl=<0.1, TDS=160, V=6.4, Ra=NA, U=NA AL139 (UNK-UNK): pH=6.3, Eh=353, k=NM, As=<0.5, Sb=<0.5, Ba=19.4, Be=<0.2, B=<5, Cd=<0.08, Cl=2.1, Cr=0.81, Cr (IV)=0.64, Co=<0.5, Fe=<50, Mn=4.1, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=81.4, SO4=2.7, Tl=<0.1, TDS=81, V=5.4, Ra=NA, U=NA AL14 (UNK-UNK): pH=5.9, Eh=418, k=NM, As=<5, Sb=<1, Ba=96, Be=<1, B=<100, Cd=<0.1, Cl=22.3, Cr=4, Cr (IV)=5, Co=<1, Fe=<50, Mn=<5, Mo=<5, Ni=<5, Se=<5, Sr=360, SO4=6.920001, Tl=<0.1, TDS=214, V=2, Ra=NA, U=NA AL140 (UNK-UNK): pH=6.2, Eh=398, k=NM, As=<0.5, Sb=<0.5, Ba=45.4, Be=<0.2, B=<5, Cd=<0.08, Cl=12.2, Cr=2.5, Cr (IV)=2.4, Co=<0.5, Fe=58.4, Mn=2, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=189, SO4=2.8, Tl=<0.1, TDS=151, V=4.7, Ra=NA, U=NA AL141 (UNK-UNK): pH=6.8, Eh=363, k=NM, As=<0.5, Sb=<0.5, Ba=22.5, Be=<0.2, B=<5, Cd=0.092, Cl=2.1, Cr=3.9, Cr (IV)=4.4, Co=<0.5, Fe=<50, Mn=1.8, Mo=<0.5, Ni=0.58, Se=<0.5, Sr=104, SO4=<2, Tl=<0.1, TDS=98, V=12.8, Ra=NA, U=NA AL142 (UNK-UNK): pH=6.6, Eh=253, k=NM, As=<0.5, Sb=<0.5, Ba=23.7, Be=<0.2, B=<5, Cd=<0.08, Cl=5, Cr=0.89, Cr (IV)=0.079, Co=<0.5, Fe=958, Mn=21.3, Mo=<0.5, Ni=0.71, Se=<0.5, Sr=125, SO4=<2, Tl=<0.1, TDS=105, V=4.9, Ra=NA, U=NA AL15 (UNK-UNK): pH=6.3, Eh=368, k=NM, As=<0.5, Sb=<0.5, Ba=50.4, Be=<0.2, B=10.9, Cd=<0.08, Cl=7.7, Cr=2, Cr (IV)=1.8, Co=<0.5, Fe=<50, Mn=1.8, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=227, SO4=4.6, Tl=<0.1, TDS=156, V=4.8, Ra=NA, U=NA AL16 (UNK-UNK): pH=6.4, Eh=397, k=NM, As=<0.5, Sb=<0.5, Ba=16, Be=<0.2, B=<5, Cd=<0.08, Cl=4.7, Cr=1.7, Cr (IV)=1.8, Co=<0.5, Fe=<50, Mn=0.87, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=128, SO4=<2, Tl=<0.1, TDS=116, V=4.2, Ra=NA, U=NA AL17 (UNK-UNK): pH=6.5, Eh=565, k=NM, As=<0.5, Sb=<0.5, Ba=30, Be=<0.2, B=<5, Cd=<0.08, Cl=4.3, Cr=1.4, Cr (IV)=1.1, Co=<0.5, Fe=59.3, Mn=1.7, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=168, SO4=2.1, Tl=<0.1, TDS=130, V=7.8, Ra=NA, U=NA AL19 (UNK-UNK): pH=6.4, Eh=448, k=NM, As=<0.5, Sb=<0.5, Ba=51.3, Be=<0.2, B=<5, Cd=<0.08, Cl=7.7, Cr=2.7, Cr (IV)=2.6, Co=<0.5, Fe=<50, Mn=1.1, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=233, SO4=<2, Tl=<0.1, TDS=157, V=4.5, Ra=NA, U=NA AL20 (UNK-UNK): pH=6.8, Eh=367, k=NM, As=<0.5, Sb=<0.5, Ba=20, Be=<0.2, B=<5, Cd=<0.08, Cl=3.1, Cr=1.6, Cr (IV)=1.4, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=160, SO4=2.1, Tl=<0.1, TDS=134, V=12, Ra=NA, U=NA AL21 (UNK-UNK): pH=6.9, Eh=496, k=NM, As=<0.5, Sb=<0.5, Ba=22.5, Be=<0.2, B=<5, Cd=<0.08, Cl=2.5, Cr=0.92, Cr (IV)=0.74, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=158, SO4=2.2, Tl=<0.1, TDS=119, V=12.6, Ra=NA, U=NA AL22 (UNK-UNK): pH=7.4, Eh=338, k=NM, As=<0.5, Sb=<0.5, Ba=1.2, Be=<0.2, B=<5, Cd=<0.08, Cl=3.8, Cr=0.58, Cr (IV)=0.39, Co=<0.5, Fe=<50, Mn=<0.5, Mo=2.2, Ni=<0.5, Se=<0.5, Sr=109, SO4=3.2, Tl=<0.1, TDS=133, V=8.9, Ra=NA, U=NA AL23 (UNK-UNK): pH=7, Eh=478, k=NM, As=<0.5, Sb=<0.5, Ba=14.8, Be=<0.2, B=<5, Cd=<0.08, Cl=2, Cr=1.5, Cr (IV)=1.1, Co=<0.5, Fe=<50, Mn=1.1, Mo=0.54, Ni=0.51, Se=<0.5, Sr=110, SO4=2.2, Tl=<0.1, TDS=94, V=13.4, Ra=NA, U=NA AL24 (UNK-UNK): pH=7.3, Eh=375, k=NM, As=<0.5, Sb=<0.5, Ba=1.7, Be=<0.2, B=<5, Cd=<0.08, Cl=2.4, Cr=0.89, Cr (IV)=0.77, Co=<0.5, Fe=<50, Mn=<0.5, Mo=2.5, Ni=<0.5, Se=<0.5, Sr=80.7, SO4=3.8, Tl=<0.1, TDS=107, V=12.5, Ra=NA, U=NA AL25 (UNK-UNK): pH=6.3, Eh=425, k=NM, As=<0.5, Sb=<0.5, Ba=75.1, Be=<0.2, B=<5, Cd=<0.08, Cl=4.5, Cr=2.7, Cr (IV)=2.3, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=0.53, Se=<0.5, Sr=240, SO4=<2, Tl=<0.1, TDS=143, V=5.3, Ra=NA, U=NA AL26 (UNK-UNK): pH=6.7, Eh=553, k=NM, As=<0.5, Sb=<0.5, Ba=44.7, Be=<0.2, B=<5, Cd=<0.08, Cl=8.8, Cr=0.79, Cr (IV)=0.55, Co=<0.5, Fe=<50, Mn=0.68, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=187, SO4=2.5, Tl=<0.1, TDS=147, V=7.6, Ra=NA, U=NA AL27 (UNK-UNK): pH=6.5, Eh=377, k=NM, As=<0.5, Sb=<0.5, Ba=50.1, Be=<0.2, B=<5, Cd=<0.08, Cl=10.9, Cr=2, Cr (IV)=1.8, Co=<0.5, Fe=<50, Mn=1.2, Mo=<0.5, Ni=0.53, Se=<0.5, Sr=221, SO4=<2, Tl=<0.1, TDS=166, V=4.2, Ra=NA, U=NA AL28 (UNK-UNK): pH=7.03, Eh=NM, k=NM, As=0.18, Sb=<0.4, Ba=14.8, Be=<0.11, B=<20, Cd=<0.06, Cl=2, Cr=2.05, Cr (IV)=2.05, Co=<0.03, Fe=<25, Mn=<0.84, Mo=0.95, Ni=0.2, Se=<0.16, Sr=75, SO4=<5, Tl=<0.06, TDS=152, V=13, Ra=NA, U=NA AL29 (UNK-UNK): pH=6.6, Eh=418, k=NM, As=<0.5, Sb=<0.5, Ba=23.6, Be=<0.2, B=<5, Cd=<0.08, Cl=2.8, Cr=2.1, Cr (IV)=2.2, Co=<0.5, Fe=<50, Mn=0.65, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=86.4, SO4=<2, Tl=<0.1, TDS=100, V=6.8, Ra=NA, U=NA AL3 (UNK-UNK): pH=6.6, Eh=405, k=NM, As=<0.5, Sb=<0.5, Ba=16.7, Be=<0.2, B=7.1, Cd=<0.08, Cl=2.1, Cr=1.9, Cr (IV)=1.9, Co=<0.5, Fe=<50, Mn=0.54, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=80.2, SO4=<2, Tl=<0.1, TDS=83, V=7.7, Ra=NA, U=NA AL30 (UNK-UNK): pH=6.5, Eh=506, k=NM, As=<0.5, Sb=<0.5, Ba=54.7, Be=<0.2, B=<5, Cd=<0.08, Cl=13.2, Cr=3.6, Cr (IV)=3.5, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=220, SO4=<2, Tl=<0.1, TDS=122, V=5.8, Ra=NA, U=NA AL31 (UNK-UNK): pH=6.3, Eh=364, k=NM, As=<0.5, Sb=<0.5, Ba=38.5, Be=<0.2, B=<5, Cd=<0.08, Cl=2.3, Cr=2, Cr (IV)=1.7, Co=<0.5, Fe=<50, Mn=1.1, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=90, SO4=<2, Tl=<0.1, TDS=70, V=2.9, Ra=NA, U=NA AL32 (UNK-UNK): pH=6.2, Eh=472, k=NM, As=<0.5, Sb=<0.5, Ba=44.8, Be=<0.2, B=<5, Cd=<0.08, Cl=1.5, Cr=2.4, Cr (IV)=2.7, Co=<0.5, Fe=<50, Mn=1.1, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=157, SO4=<2, Tl=<0.1, TDS=100, V=2.7, Ra=NA, U=NA AL33 (UNK-UNK): pH=6.5, Eh=508, k=NM, As=<0.5, Sb=<0.5, Ba=15.1, Be=<0.2, B=<5, Cd=<0.08, Cl=1.9, Cr=4.2, Cr (IV)=4.1, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=0.53, Se=<0.5, Sr=127, SO4=<2, Tl=<0.1, TDS=116, V=6.4, Ra=NA, U=NA AL34 (UNK-UNK): pH=6.7, Eh=499, k=NM, As=<0.5, Sb=<0.5, Ba=27.6, Be=<0.2, B=<5, Cd=<0.08, Cl=1.9, Cr=2.6, Cr (IV)=2.3, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=146, SO4=2.2, Tl=<0.1, TDS=108, V=10.1, Ra=NA, U=NA AL39 WELL A (UNK-UNK): pH=6.2, Eh=519, k=NM, As=<0.5, Sb=<0.5, Ba=9.7, Be=<0.2, B=<5, Cd=<0.08, Cl=7, Cr=0.84, Cr (IV)=0.78, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=103, SO4=<2, Tl=<0.1, TDS=77, V=2.9, Ra=NA, U=NA AL39 WELL B (UNK-UNK): pH=8.1, Eh=383, k=NM, As=0.86, Sb=<0.5, Ba=1.1, Be=<0.2, B=<5, Cd=<0.08, Cl=4.2, Cr=0.85, Cr (IV)=0.18, Co=<0.5, Fe=271, Mn=8.9, Mo=3.7, Ni=<0.5, Se=1.6, Sr=124, SO4=6.5, Tl=<0.1, TDS=139, V=12.7, Ra=NA, U=NA AL40 (UNK-UNK): pH=6.2, Eh=446, k=NM, As=<0.5, Sb=<0.5, Ba=10.9, Be=<0.2, B=<5, Cd=<0.08, Cl=2.3, Cr=1.1, Cr (IV)=0.19, Co=<0.5, Fe=<50, Mn=1.3, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=68.5, SO4=<2, Tl=<0.1, TDS=64, V=3.4, Ra=NA, U=NA AL41 (UNK-UNK): pH=6.5, Eh=388, k=NM, As=<0.5, Sb=<0.5, Ba=5.8, Be=<0.2, B=<5, Cd=<0.08, Cl=1.4, Cr=<0.5, Cr (IV)=0.12, Co=<0.5, Fe=<50, Mn=<0.5, Mo=0.69, Ni=<0.5, Se=<0.5, Sr=47.2, SO4=<2, Tl=<0.1, TDS=49, V=3.5, Ra=NA, U=NA AL44 (UNK-UNK): pH=5.8, Eh=435, k=NM, As=<0.5, Sb=<0.5, Ba=70.9, Be=<0.2, B=26.9, Cd=<0.08, Cl=11, Cr=<0.5, Cr (IV)=0.17, Co=1.4, Fe=<50, Mn=9.2, Mo=<0.5, Ni=1.1, Se=<0.5, Sr=31.8, SO4=<2, Tl=<0.1, TDS=63, V=<1, Ra=NA, U=NA AL45 (UNK-UNK): pH=6.7, Eh=406, k=NM, As=<0.5, Sb=<0.5, Ba=12.7, Be=<0.2, B=<5, Cd=<0.08, Cl=1.7, Cr=0.89, Cr (IV)=0.69, Co=<0.5, Fe=<50, Mn=0.6, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=77, SO4=<2, Tl=<0.1, TDS=74, V=5.3, Ra=NA, U=NA AL47 (UNK-UNK): pH=6.4, Eh=445, k=NM, As=<0.5, Sb=<0.5, Ba=74, Be=<0.2, B=<5, Cd=<0.08, Cl=15.1, Cr=2.6, Cr (IV)=2.2, Co=<0.5, Fe=70.9, Mn=2.6, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=276, SO4=<2, Tl=<0.1, TDS=229, V=3.6, Ra=NA, U=NA AL48 (UNK-UNK): pH=6.6, Eh=366, k=NM, As=<0.5, Sb=<0.5, Ba=35.8, Be=<0.2, B=<5, Cd=<0.08, Cl=5.8, Cr=4.4, Cr (IV)=3.8, Co=<0.5, Fe=<50, Mn=2.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=158, SO4=4, Tl=<0.1, TDS=109, V=6.1, Ra=NA, U=NA AL49 (UNK-UNK): pH=6.8, Eh=415, k=NM, As=<0.5, Sb=<0.5, Ba=36.7, Be=<0.2, B=<5, Cd=<0.08, Cl=4.2, Cr=1.2, Cr (IV)=0.9, Co=<0.5, Fe=<50, Mn=0.91, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=141, SO4=2.6, Tl=<0.1, TDS=117, V=12.6, Ra=NA, U=NA AL5 (UNK-UNK): pH=6.8, Eh=388, k=NM, As=<5, Sb=<1, Ba=20, Be=<1, B=<100, Cd=<0.1, Cl=2.44, Cr=3, Cr (IV)=4, Co=<1, Fe=75, Mn=<5, Mo=2, Ni=<5, Se=<5, Sr=110, SO4=1.11, Tl=<0.1, TDS=88, V=14, Ra=NA, U=NA AL50 WELL A (UNK-UNK): pH=7.1, Eh=393, k=NM, As=1.5, Sb=<0.5, Ba=3.7, Be=<0.2, B=7, Cd=<0.08, Cl=3.9, Cr=<0.5, Cr (IV)=0.21, Co=<0.5, Fe=<50, Mn=<0.5, Mo=4.3, Ni=<0.5, Se=0.66, Sr=91.4, SO4=5.9, Tl=<0.1, TDS=125, V=5.5, Ra=NA, U=NA AL50 WELL B (UNK-UNK): pH=6.6, Eh=450, k=NM, As=<0.5, Sb=<0.5, Ba=12, Be=<0.2, B=5.8, Cd=<0.08, Cl=1.6, Cr=<0.5, Cr (IV)=0.24, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=62.9, SO4=<2, Tl=<0.1, TDS=78, V=6.7, Ra=NA, U=NA AL50 WELL C (UNK-UNK): pH=6.1, Eh=412, k=NM, As=<0.5, Sb=<0.5, Ba=33.5, Be=<0.2, B=102, Cd=<0.08, Cl=8.4, Cr=1.8, Cr (IV)=1.1, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=1, Se=<0.5, Sr=133, SO4=4.9, Tl=<0.1, TDS=96, V=3.7, Ra=NA, U=NA AL51 (UNK-UNK): pH=6.3, Eh=471, k=NM, As=<0.5, Sb=<0.5, Ba=35.3, Be=<0.2, B=<5, Cd=<0.08, Cl=14.2, Cr=0.76, Cr (IV)=0.43, Co=<0.5, Fe=<50, Mn=0.58, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=346, SO4=2, Tl=<0.1, TDS=178, V=2.4, Ra=NA, U=NA AL52 (UNK-UNK): pH=6.3, Eh=394, k=NM, As=<0.5, Sb=<0.5, Ba=26.5, Be=<0.2, B=<5, Cd=<0.08, Cl=8.8, Cr=0.71, Cr (IV)=0.12, Co=<0.5, Fe=<50, Mn=0.73, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=232, SO4=<2, Tl=<0.1, TDS=158, V=3.4, Ra=NA, U=NA AL53 (UNK-UNK): pH=6.31, Eh=NM, k=NM, As=0.12, Sb=<0.4, Ba=25.5, Be=<0.11, B=<20, Cd=<0.06, Cl=5, Cr=4.06, Cr (IV)=2.9, Co=<0.03, Fe=<15, Mn=<0.84, Mo=<0.11, Ni=0.58, Se=<0.16, Sr=142, SO4=<5, Tl=<0.06, TDS=75, V=4.3, Ra=NA, U=NA AL54 (UNK-UNK): pH=6.2, Eh=472, k=NM, As=<0.5, Sb=<0.5, Ba=22.8, Be=<0.2, B=<5, Cd=<0.08, Cl=15.7, Cr=3.2, Cr (IV)=2.9, Co=<0.5, Fe=<50, Mn=1.3, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=251, SO4=3.8, Tl=<0.1, TDS=145, V=4.4, Ra=NA, U=NA AL55 (UNK-UNK): pH=6.5, Eh=433, k=NM, As=<0.5, Sb=<0.5, Ba=27.2, Be=<0.2, B=<5, Cd=<0.08, Cl=4.6, Cr=2, Cr (IV)=1.5, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=131, SO4=2.5, Tl=<0.1, TDS=125, V=7.5, Ra=NA, U=NA AL56 (UNK-UNK): pH=5.8, Eh=375, k=NM, As=<1, Sb=0.12, Ba=93, Be=<1, B=66, Cd=<1, Cl=7.3, Cr=4.5, Cr (IV)=<10, Co=0.26, Fe=920, Mn=9.9, Mo=0.24, Ni=1.7, Se=<1, Sr=230, SO4=<1, Tl=0.057, TDS=140, V=7.6, Ra=NA, U=NA AL57 (UNK-UNK): pH=6.5, Eh=445, k=NM, As=<0.5, Sb=<0.5, Ba=67, Be=<0.2, B=<5, Cd=<0.08, Cl=3.3, Cr=1.2, Cr (IV)=1, Co=<0.5, Fe=<50, Mn=1.3, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=205, SO4=<2, Tl=<0.1, TDS=123, V=8.3, Ra=NA, U=NA AL58 (UNK-UNK): pH=6.7, Eh=313, k=NM, As=0.82, Sb=<0.5, Ba=29.2, Be=<0.2, B=6.6, Cd=<0.08, Cl=7.4, Cr=0.63, Cr (IV)=0.24, Co=<0.5, Fe=<50, Mn=4.4, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=203, SO4=4.3, Tl=<0.1, TDS=137, V=12.2, Ra=NA, U=NA AL59 (UNK-UNK): pH=6.6, Eh=403, k=NM, As=<0.5, Sb=<0.5, Ba=32.8, Be=<0.2, B=<5, Cd=<0.08, Cl=3.3, Cr=3, Cr (IV)=2.4, Co=<0.5, Fe=<50, Mn=1.9, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=183, SO4=<2, Tl=<0.1, TDS=99, V=17.1, Ra=NA, U=NA AL6 (UNK-UNK): pH=6.5, Eh=508, k=NM, As=<0.5, Sb=<0.5, Ba=30, Be=<0.2, B=<5, Cd=<0.08, Cl=3, Cr=3.5, Cr (IV)=3.2, Co=<0.5, Fe=60.8, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=94, SO4=2.1, Tl=<0.1, TDS=86, V=6.4, Ra=NA, U=NA AL60 (UNK-UNK): pH=6.4, Eh=400, k=NM, As=<0.5, Sb=<0.5, Ba=64.9, Be=<0.2, B=<5, Cd=<0.08, Cl=14.6, Cr=5.8, Cr (IV)=5.3, Co=<0.5, Fe=56.9, Mn=8.6, Mo=<0.5, Ni=0.96, Se=<0.5, Sr=317, SO4=<2, Tl=<0.1, TDS=197, V=9, Ra=NA, U=NA AL61 (UNK-UNK): pH=6.5, Eh=387, k=NM, As=<0.5, Sb=<0.5, Ba=29.2, Be=<0.2, B=<5, Cd=<0.08, Cl=8.9, Cr=4.8, Cr (IV)=4.6, Co=<0.5, Fe=<50, Mn=0.57, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=208, SO4=3.3, Tl=<0.1, TDS=148, V=13.6, Ra=NA, U=NA AL62 (UNK-UNK): pH=6.63, Eh=NM, k=NM, As=0.12, Sb=<0.4, Ba=25.3, Be=<0.11, B=<20, Cd=<0.06, Cl=7, Cr=2.84, Cr (IV)=2.26, Co=<0.03, Fe=<15, Mn=<0.84, Mo=0.45, Ni=0.42, Se=<0.16, Sr=205, SO4=<5, Tl=<0.06, TDS=108, V=11.2, Ra=NA, U=NA AL63 (UNK-UNK): pH=6.04, Eh=NM, k=NM, As=<0.08, Sb=<0.5, Ba=43.8, Be=<0.11, B=<20, Cd=<0.06, Cl=15, Cr=3.31, Cr (IV)=1.94, Co=0.05, Fe=435, Mn=2.74, Mo=0.27, Ni=0.81, Se=0.25, Sr=274, SO4=6, Tl=<0.06, TDS=204, V=7.02, Ra=NA, U=NA AL64 (UNK-UNK): pH=6.1, Eh=429, k=NM, As=<0.5, Sb=<0.5, Ba=68.1, Be=<0.2, B=<5, Cd=<0.08, Cl=37.9, Cr=4.4, Cr (IV)=4.3, Co=<0.5, Fe=<50, Mn=1.6, Mo=<0.5, Ni=2.6, Se=<0.5, Sr=424, SO4=<2, Tl=<0.1, TDS=233, V=2.8, Ra=NA, U=NA AL65 (UNK-UNK): pH=6.6, Eh=405, k=NM, As=<0.5, Sb=<0.5, Ba=8.9, Be=<0.2, B=<5, Cd=<0.08, Cl=10.7, Cr=<0.5, Cr (IV)=0.25, Co=<0.5, Fe=<50, Mn=<0.5, Mo=1.1, Ni=<0.5, Se=0.52, Sr=180, SO4=3.2, Tl=<0.1, TDS=165, V=6, Ra=NA, U=NA AL66 (UNK-UNK): pH=6.4, Eh=466, k=NM, As=<0.5, Sb=<0.5, Ba=47.6, Be=<0.2, B=<5, Cd=<0.08, Cl=8.8, Cr=0.5, Cr (IV)=0.38, Co=<0.5, Fe=<50, Mn=3.9, Mo=<0.5, Ni=1.2, Se=<0.5, Sr=306, SO4=<2, Tl=<0.1, TDS=160, V=5.3, Ra=NA, U=NA AL67 (UNK-UNK): pH=7.4, Eh=400, k=NM, As=<0.5, Sb=<0.5, Ba=3.8, Be=<0.2, B=5.3, Cd=<0.08, Cl=6.3, Cr=0.89, Cr (IV)=0.62, Co=<0.5, Fe=<50, Mn=0.66, Mo=1.2, Ni=<0.5, Se=<0.5, Sr=132, SO4=3.3, Tl=<0.1, TDS=159, V=13.3, Ra=NA, U=NA AL68 (UNK-UNK): pH=6.7, Eh=345, k=NM, As=<0.5, Sb=<0.5, Ba=12.5, Be=<0.2, B=<5, Cd=<0.08, Cl=8.3, Cr=2.8, Cr (IV)=1.8, Co=<0.5, Fe=85.9, Mn=2.8, Mo=0.63, Ni=<0.5, Se=<0.5, Sr=182, SO4=2.7, Tl=<0.1, TDS=160, V=15.4, Ra=NA, U=NAAL69 (UNK-UNK): pH=6.5, Eh=407, k=NM, As=<0.5, Sb=<0.5, Ba=40, Be=<0.2, B=<5, Cd=<0.08, Cl=3.8, Cr=1.8, Cr (IV)=1.2, Co=<0.5, Fe=75.8, Mn=1.9, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=219, SO4=<2, Tl=<0.1, TDS=141, V=8.4, Ra=NA, U=NA AL7 (UNK-UNK): pH=6.9, Eh=360, k=NM, As=<0.5, Sb=<0.5, Ba=18.8, Be=<0.2, B=<5, Cd=<0.08, Cl=3.7, Cr=1.2, Cr (IV)=0.97, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=180, SO4=<2, Tl=<0.1, TDS=119, V=10.9, Ra=NA, U=NA AL70 (UNK-UNK): pH=6.5, Eh=467, k=NM, As=<0.5, Sb=<0.5, Ba=48.3, Be=<0.2, B=<5, Cd=<0.08, Cl=8.9, Cr=1.8, Cr (IV)=1.6, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=0.57, Se=<0.5, Sr=265, SO4=2.7, Tl=<0.1, TDS=162, V=9.4, Ra=NA, U=NA AL71 (UNK-UNK): pH=6.5, Eh=476, k=NM, As=<0.5, Sb=<0.5, Ba=35.8, Be=<0.2, B=<5, Cd=<0.08, Cl=9.5, Cr=1.5, Cr (IV)=1, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=256, SO4=<2, Tl=<0.1, TDS=149, V=9.2, Ra=NA, U=NA AL72 (UNK-UNK): pH=6.5, Eh=375, k=NM, As=<0.5, Sb=<0.5, Ba=30, Be=<0.2, B=<5, Cd=<0.08, Cl=9, Cr=2.5, Cr (IV)=1.1, Co=<0.5, Fe=<50, Mn=7.7, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=265, SO4=<2, Tl=<0.1, TDS=132, V=5.1, Ra=NA, U=NA AL73 (UNK-UNK): pH=6.5, Eh=380, k=NM, As=<0.5, Sb=<0.5, Ba=34.4, Be=<0.2, B=<5, Cd=<0.08, Cl=4.8, Cr=2.2, Cr (IV)=2.4, Co=<0.5, Fe=<50, Mn=0.72, Mo=<0.5, Ni=0.66, Se=<0.5, Sr=181, SO4=<2, Tl=<0.1, TDS=133, V=9.3, Ra=NA, U=NA AL74 (UNK-UNK): pH=6.3, Eh=383, k=NM, As=<0.5, Sb=<0.5, Ba=51.1, Be=<0.2, B=<5, Cd=<0.08, Cl=10.9, Cr=2.1, Cr (IV)=2, Co=<0.5, Fe=<50, Mn=2.2, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=293, SO4=<2, Tl=<0.1, TDS=168, V=5.8, Ra=NA, U=NA AL75 (UNK-UNK): pH=6.8, Eh=373, k=NM, As=<0.5, Sb=<0.5, Ba=11.8, Be=<0.2, B=<5, Cd=<0.08, Cl=2.5, Cr=2.1, Cr (IV)=1.7, Co=<0.5, Fe=<50, Mn=1, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=82, SO4=<2, Tl=<0.1, TDS=99, V=13.8, Ra=NA, U=NA AL76 (UNK-UNK): pH=6.41, Eh=NM, k=NM, As=0.13, Sb=<0.4, Ba=11.9, Be=<0.11, B=<20, Cd=<0.06, Cl=2, Cr=2.62, Cr (IV)=2.62, Co=<0.03, Fe=<25, Mn=1.5, Mo=<0.12, Ni=0.45, Se=<0.16, Sr=109, SO4=<5, Tl=<0.06, TDS=87, V=8.34, Ra=NA, U=NA AL77 (UNK-UNK): pH=6.4, Eh=469, k=NM, As=<0.5, Sb=<0.5, Ba=49, Be=<0.2, B=<5, Cd=<0.08, Cl=7.7, Cr=1, Cr (IV)=0.7, Co=<0.5, Fe=<50, Mn=0.54, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=238, SO4=2.5, Tl=<0.1, TDS=157, V=8.6, Ra=NA, U=NA AL78 (UNK-UNK): pH=6.1, Eh=436, k=NM, As=<0.5, Sb=<0.5, Ba=26, Be=<0.2, B=<5, Cd=<0.08, Cl=2.9, Cr=<0.5, Cr (IV)=0.1, Co=<0.5, Fe=<50, Mn=1, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=86.1, SO4=<2, Tl=<0.1, TDS=70, V=2.1, Ra=NA, U=NA AL79 (UNK-UNK): pH=6.3, Eh=388, k=NM, As=<0.5, Sb=<0.5, Ba=24.8, Be=<0.2, B=<5, Cd=<0.08, Cl=6.5, Cr=0.6, Cr (IV)=0.33, Co=<0.5, Fe=54.9, Mn=0.71, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=157, SO4=2.1, Tl=<0.1, TDS=104, V=4.4, Ra=NA, U=NA AL8 (UNK-UNK): pH=6.4, Eh=451, k=NM, As=<0.5, Sb=<0.5, Ba=53, Be=<0.2, B=<5, Cd=<0.08, Cl=4.5, Cr=3.1, Cr (IV)=3.5, Co=<0.5, Fe=<50, Mn=25.9, Mo=<0.5, Ni=0.7, Se=<0.5, Sr=237, SO4=<2, Tl=<0.1, TDS=132, V=8.5, Ra=NA, U=NA AL81 (UNK-UNK): pH=6.3, Eh=391, k=NM, As=<0.5, Sb=<0.5, Ba=30.2, Be=<0.2, B=<5, Cd=<0.08, Cl=7.9, Cr=0.73, Cr (IV)=0.78, Co=<0.5, Fe=<50, Mn=6.5, Mo=<0.5, Ni=0.95, Se=<0.5, Sr=228, SO4=<2, Tl=<0.1, TDS=137, V=2.2, Ra=NA, U=NA AL82 (UNK-UNK): pH=6.3, Eh=478, k=NM, As=<0.5, Sb=<0.5, Ba=69.5, Be=<0.2, B=<5, Cd=<0.08, Cl=14.3, Cr=1.4, Cr (IV)=0.81, Co=<0.5, Fe=<50, Mn=1.7, Mo=<0.5, Ni=0.71, Se=<0.5, Sr=392, SO4=2.1, Tl=<0.1, TDS=223, V=4.7, Ra=NA, U=NA AL83 (UNK-UNK): pH=6.2, Eh=405, k=NM, As=<0.5, Sb=<0.5, Ba=42.1, Be=<0.2, B=<5, Cd=<0.08, Cl=15.3, Cr=3.5, Cr (IV)=3.5, Co=<0.5, Fe=<50, Mn=1.5, Mo=<0.5, Ni=1.3, Se=<0.5, Sr=289, SO4=3.9, Tl=<0.1, TDS=228, V=9, Ra=NA, U=NA AL84 (UNK-UNK): pH=6.8, Eh=386, k=NM, As=<0.5, Sb=<0.5, Ba=23.5, Be=<0.2, B=<5, Cd=<0.08, Cl=6.6, Cr=0.55, Cr (IV)=0.59, Co=<0.5, Fe=59.8, Mn=15.7, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=185, SO4=<2, Tl=<0.1, TDS=134, V=8.2, Ra=NA, U=NA AL89 (UNK-UNK): pH=6.8, Eh=397, k=NM, As=<0.5, Sb=<0.5, Ba=25.7, Be=<0.2, B=<5, Cd=<0.08, Cl=1.8, Cr=4, Cr (IV)=4, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=113, SO4=<2, Tl=<0.1, TDS=75, V=12, Ra=NA, U=NA AL9 (UNK-UNK): pH=6.2, Eh=464, k=NM, As=<5, Sb=<1, Ba=54, Be=<1, B=<100, Cd=<0.1, Cl=8.06, Cr=6, Cr (IV)=5, Co=<1, Fe=<50, Mn=<5, Mo=<5, Ni=<5, Se=<5, Sr=300, SO4=1.22, Tl=<0.1, TDS=165, V=7, Ra=NA, U=NA AL90 (UNK-UNK): pH=6.5, Eh=399, k=NM, As=<0.5, Sb=<0.5, Ba=43.7, Be=<0.2, B=<5, Cd=<0.08, Cl=4.5, Cr=2.4, Cr (IV)=1.9, Co=<0.5, Fe=283, Mn=8.4, Mo=<0.5, Ni=0.72, Se=<0.5, Sr=142, SO4=<2, Tl=<0.1, TDS=101, V=5.5, Ra=NA, U=NA AL92 (UNK-UNK): pH=6.3, Eh=412, k=NM, As=<0.5, Sb=<0.5, Ba=22.5, Be=<0.2, B=<5, Cd=<0.08, Cl=5.3, Cr=1.2, Cr (IV)=0.46, Co=<0.5, Fe=<50, Mn=0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=125, SO4=<2, Tl=<0.1, TDS=90, V=5.1, Ra=NA, U=NA AL93 (UNK-UNK): pH=6.7, Eh=377, k=NM, As=<0.5, Sb=<0.5, Ba=20.4, Be=<0.2, B=<5, Cd=<0.08, Cl=2.5, Cr=2.4, Cr (IV)=1.5, Co=<0.5, Fe=52.3, Mn=5.2, Mo=0.61, Ni=<0.5, Se=<0.5, Sr=81.8, SO4=<2, Tl=<0.1, TDS=98, V=9.7, Ra=NA, U=NA AL94 (UNK-UNK): pH=7.7, Eh=423, k=NM, As=2.4, Sb=<0.5, Ba=6.1, Be=<0.2, B=5.5, Cd=<0.08, Cl=3.1, Cr=<0.5, Cr (IV)=0.18, Co=<0.5, Fe=<50, Mn=<0.5, Mo=5.1, Ni=<0.5, Se=1.7, Sr=131, SO4=5.4, Tl=<0.1, TDS=124, V=24.9, Ra=NA, U=NA AL139 AL96 EATON CORPORATION SAILAWAY BAY AL3 AL95 AL4 AL5 AL121 AL12 AL116 AL117 AL8 AL8 AL10 AL9 AL118 AL19 AL18 AL17 AL11 AL16 AL96 (UNK-UNK): pH=6.7, Eh=373, k=NM, As=<0.5, Sb=<0.5, Ba=37.7, Be=<0.2, B=<5, Cd=<0.08, Cl=3.3, Cr=0.75, Cr (IV)=0.43, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=123, SO4=<2, Tl=<0.1, TDS=90, V=5.9, Ra=NA, U=NA AL100 AL20 AL22 AL34 AL21 AL23 AL33 AL24 AL25 AL31 AL30 AL32-?? AL7 AL123 AL102 AL15 AL14 AL13 AL12 AL136 AL140 AL6 AL29 AL28 AL110 AL27 AL26 MITCHELL STAL32 AL113 AL130AL115 AL138 AL135 AL67 AL68 AL70 AL71 AL72 AL73 AL141 AL74AL75 AL84 AL69 AL114 AL76 AL83 AL60 AL61 AL62 AL63 AL65 AL64 AL59 AL56 AL54AL53 AL52 AL66 AL82 AL77 AL58AL57 AL55 AL51 AL81 AL78 AL79 AL80 AL49 AL35 AL101 AL48 AL93 AL94 AL47 AL142 AL45 AL46 AL37 AL44 AL36 AL43AL38 AL92 AL39 AL50 AL50 AL12 (UNK-UNK): pH=6.1, Eh=464, k=NM, As=<0.5, Sb=<0.5, Ba=58.2, Be=<0.2, B=<5, Cd=<0.08, Cl=8.4, Cr=1.7, Cr (IV)=1.5, Co=<0.5, Fe=<50, Mn=0.8, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=286, SO4=4.5, Tl=<0.1, TDS=146, V=2.4, Ra=NA, U=NA SOURCE NOTES: NOT ALL UTILITIES ARE IDENTIFIED ON THIS DRAWING. THE UTILITIES SHOWN ON THIS DRAWING ARE VISUAL AIDS. THE HORIZONTAL AND VERTICAL LOCATIONS OF THE UTLITIES HAVE NOT BEEN FIELD VERIFIED. ANY UTILITIES SHOWN ARE APPROXIMATE. LEGEND WELL IN DEEP ZONE WELL IN SHALLOW ZONE WELL IN BEDROCK ZONE ABMW-07 WELL IN ASH PORE WATER WELL ABANDONED ASH BASIN COMPLIANCE BOUNDARY PARCEL LINE DUKE ENERGY (APPROXIMATE) ASH BASIN WASTE BOUNDARY WATER SUPPLY WELL SAMPLED WATER SAMPLE LOCATION SAMPLED SURFACE WATER FLOW DIRECTION AREA OF WETNESS (AOW) SAMPLE LOCATION WATER SUPPLY WELL NOT SAMPLED APPROXIMATE STREAM (NON-JD) TOPOGRAPHY IS BASED ON LIDAR BARE EARTH DATA OBTAINED FROM THE FRIS\NORTH CAROLINA FLOOD RISK INFORMATION SYSTEM AT http://fris.nc.gov/fris/Download.aspx?FIPS=031&ST=NC&user=General%20Public AND A DRAWING TITLED AERIAL TOPOGRAPHIC SURVEY-ALLEN STEAM STATION BY WSP, JOB NUMBER 157002.00 AND DRAWING FILE NAME APRIL 2014_ALLEN_FINAL_10-30-15.DWG SAMPLE LOCATIONS WERE OBTAINED FROM HDR INFORMATION AND MAY BE APPROXIMATE IN SOME CASES. SOIL OR GEOTECHNICAL BORING APPROXIMATE POND OR RESERVOIR (NON-JD) APPROXIMATE EFFLUENT CHANNEL APPROXIMATE ASH BASIN PONDED WATER NPDES REGULATED PLANT WATER FEATURE NPDES REGULATED FLOW DIRECTION LANDFILL COMPLIANCE BOUNDARY LANDFILL BOUNDARY DORS FILL BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY OBSERVATION WELL AT NEW HOLDING BASIN DEWATERING WELL AT NEW HOLDING BASIN P-1 PIEZOMETER IN UNKNOWN ZONE (AECOM DATA) AL39 AL36 GWA-9BR GWA-9D GWA-9S GWA-5BR S-3 SB-7 SW-2 RAB ASH LANDFILL WASTE BOUNDARY BASED LINER LIMITS IN THE S&ME DRAWINGS FOR THE RAB ASH LANDFILL PHASE I, PROJECT NUMBER 7235-14-011, DATED 06-16-2015. OW-6 DATA NOTES: DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFER TO ANALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DATA SHOWN ON MAP IS THE MOST RECENT DATA AVAILABLE THROUGH Q3 2017. NA=NOT ANALYZED NM=NOT MEASURED DATA IS EXCLUDED FOR THE WELLS WITH A MEASURED TURBIDITY GREATER THAN 10 NTU's AND /OR HIGH pH VALUES THAT MAY INDICATE POSSIBLE GROUT INTRUSION INTO THE WELL SCREEN. Well ID (SCREENED INTERVAL IN ft. bgs): pH (S.U.), Eh (mV), k= hydraulic conductivity (ft/day) As=Arsenic (ug/L): Ba=Barium (ug/L): B=Boron (ug/L): Be=Beryllium(ug/L): Cd=Cadmium(ug/L): Cl=Chloride (mg/L): Cr=Total Chromium (ug/L): Cr (VI)=Hexavalent Chromium (ug/L):Co=Cobalt (ug/L): Fe=Iron (ug/L): Mn=Manganese (ug/L): Mo=Molybdenum(ug/L): Ni=Nickel (ug/L): Sb=Antimony(ug/L): Ra= Radium Se=Selenium(ug/L): Sr=Strontium (ug/L): SO4=Sulfate (mg/L): Tl=Thallium (ug/L): TDS=Total Dissolved Solids (mg/L): V=Vanadium (ug/L): U=Uranium (ug/L) WELL KEY WARREN DR RIVER R U N SOUTHPOINT RD (NC HWY 273)P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\DE ALLEN CSAUP BASE MAP CALL OUTS_1-12-18.dwg INSET "A" SCALE: 1"=150' SEE INSET "A" FOR CONTINUATION AL86 AL87 AL104 AL107 AL105 AL106 AL109 AL108 AL111 AL119 AL126 AL127 AL90 AL88 AL89 AL85 AL41 AL40 AL132 (UNK-UNK): pH=6.3, Eh=431, k=NM, As=<0.5, Sb=<0.5, Ba=21.4, Be=<0.2, B=<5, Cd=<0.08, Cl=2.2, Cr=0.98, Cr (IV)=0.93, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=234, SO4=2.1, Tl=<0.1, TDS=133, V=7.8, Ra=NA, U=NA AL132 AL124 (UNK-UNK): pH=6.6, Eh=410, k=NM, As=<0.5, Sb=<0.5, Ba=29, Be=<0.2, B=<5, Cd=<0.08, Cl=5.1, Cr=1.1, Cr (IV)=1, Co=<0.5, Fe=<50, Mn=<0.5, Mo=0.56, Ni=<0.5, Se=<0.5, Sr=198, SO4=2.6, Tl=<0.1, TDS=133, V=9.3, Ra=NA, U=NA AL124 AL111 (UNK-UNK): pH=6.6, Eh=336, k=NM, As=<0.5, Sb=<0.5, Ba=26.2, Be=<0.2, B=<5, Cd=<0.08, Cl=2.4, Cr=1.3, Cr (IV)=1.1, Co=<0.5, Fe=<50, Mn=1.2, Mo=<0.5, Ni=0.56, Se=<0.5, Sr=120, SO4=2.8, Tl=<0.1, TDS=109, V=10.4, Ra=NA, U=NA AL98 (UNK-UNK): pH=8.01, Eh=NM, k=NM, As=1.84, Sb=<0.4, Ba=9.37, Be=<0.11, B=<20, Cd=<0.06, Cl=1, Cr=0.82, Cr (IV)=<5, Co=<0.03, Fe=<25, Mn=6.43, Mo=3.95, Ni=0.6, Se=<0.16, Sr=34, SO4=14, Tl=<0.06, TDS=173, V=0.25, Ra=NA, U=NA AL98 AL99 (UNK-UNK): pH=6.6, Eh=443, k=NM, As=<0.5, Sb=<0.5, Ba=4, Be=<0.2, B=<5, Cd=<0.08, Cl=2.1, Cr=0.91, Cr (IV)=0.78, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=121, SO4=<2, Tl=<0.1, TDS=105, V=7.1, Ra=NA, U=NA AL99 AL120 (UNK-UNK): pH=8.1, Eh=84, k=NM, As=1.1, Sb=<0.5, Ba=7, Be=<0.2, B=15.8, Cd=<0.08, Cl=3.1, Cr=<0.5, Cr (IV)=<0.03, Co=<0.5, Fe=<50, Mn=8.9, Mo=3.6, Ni=<0.5, Se=<0.5, Sr=162, SO4=11.2, Tl=<0.1, TDS=128, V=<1, Ra=NA, U=NA AL120 AL125 (UNK-UNK): pH=8.5, Eh=39, k=NM, As=3.6, Sb=<0.5, Ba=0.77, Be=<0.2, B=5.6, Cd=<0.08, Cl=2.3, Cr=<0.5, Cr (IV)=<0.03, Co=<0.5, Fe=<50, Mn=6.7, Mo=7, Ni=<0.5, Se=<0.5, Sr=111, SO4=6.9, Tl=<0.1, TDS=97, V=<1, Ra=NA, U=NA AL125 AL91 AL88 (UNK-UNK): pH=6.4, Eh=392, k=NM, As=<0.5, Sb=<0.5, Ba=23.6, Be=<0.2, B=<5, Cd=<0.08, Cl=2.1, Cr=1.4, Cr (IV)=0.82, Co=<0.5, Fe=136, Mn=34.6, Mo=<0.5, Ni=0.62, Se=<0.5, Sr=83.2, SO4=<2, Tl=<0.1, TDS=63, V=<1, Ra=NA, U=NA AL85 (UNK-UNK): pH=6.7, Eh=425, k=NM, As=<0.5, Sb=<0.5, Ba=13, Be=<0.2, B=<5, Cd=<0.08, Cl=1.4, Cr=2.6, Cr (IV)=2.5, Co=<0.5, Fe=<50, Mn=<0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=69.2, SO4=<2, Tl=<0.1, TDS=67, V=9.6, Ra=NA, U=NA AL97 AL97 (UNK-UNK): pH=8, Eh=243, k=NM, As=1.4, Sb=<0.5, Ba=6.2, Be=<0.2, B=8, Cd=<0.08, Cl=1.8, Cr=<0.5, Cr (IV)=<0.03, Co=<0.5, Fe=<50, Mn=5.3, Mo=4.7, Ni=<0.5, Se=<0.5, Sr=112, SO4=7, Tl=<0.1, TDS=102, V=<1, Ra=NA, U=NA AL91 (UNK-UNK): pH=7.1, Eh=450, k=NM, As=<0.5, Sb=<0.5, Ba=8.1, Be=<0.2, B=<5, Cd=<0.08, Cl=1.5, Cr=2.1, Cr (IV)=1.5, Co=<0.5, Fe=67.6, Mn=0.5, Mo=<0.5, Ni=<0.5, Se=<0.5, Sr=127, SO4=2, Tl=<0.1, TDS=98, V=12.2, Ra=NA, U=NA NOTE: 1.DISPLAYED WATER SUPPLY WELL LOCATIONS (AND SAMPLE ANALYTICAL RESULTS) REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015. SEE INSET "A" FOR CONTINUATION SEE INSET "A" SEE INSET "A" LOCATION MAP PIPING OBTAINED FROM DUKE ENERGY, STANTEC, AND SYNTERRA AOW INSPECTION. SW-D1 SW-U1 SOURCE NOTES: NOT ALL UTILITIES ARE IDENTIFIED ON THIS DRAWING. THE UTILITIES SHOWN ON THIS DRAWING ARE VISUAL AIDS. THE HORIZONTAL AND VERTICAL LOCATIONS OF THE UTLITIES HAVE NOT BEEN FIELD VERIFIED. ANY UTILITIES SHOWN ARE APPROXIMATE. LEGEND WELL IN DEEP ZONE WELL IN SHALLOW ZONE WELL IN BEDROCK ZONE ABMW-07 WELL IN ASH PORE WATER WELL ABANDONED ASH BASIN COMPLIANCE BOUNDARY PARCEL LINE DUKE ENERGY (APPROXIMATE) ASH BASIN WASTE BOUNDARY WATER SUPPLY WELL SAMPLED WATER SAMPLE LOCATION SAMPLED SURFACE WATER FLOW DIRECTION FIGURE 14-105 COMPREHENSIVE SURFACE WATER AND AREA OF WETNESS ALLEN STEAM STATION 253 PLANT ALLEN RD BELMONT, NORTH CAROLINA DUKE ENERGY CAROLINAS FIG 14-105 (WATER AND AOW) LEE DRAGO JOHN CHASTAIN PROJECT MANAGER: LAYOUT NAME: DRAWN BY: CHECKED BY: CHRIS SUTTELL DATE: DATE: www.synterracorp.com 148 River Street, Suite 220 Greenville, South Carolina 29601 864-421-9999 GRAPHIC SCALE 4002001000200 (IN FEET) AREA OF WETNESS (AOW) SAMPLE LOCATION WATER SUPPLY WELL NOT SAMPLED APPROXIMATE STREAM (NON-JD) TOPOGRAPHY IS BASED ON LIDAR BARE EARTH DATA OBTAINED FROM THE FRIS\NORTH CAROLINA FLOOD RISK INFORMATION SYSTEM AT http://fris.nc.gov/fris/Download.aspx?FIPS=031&ST=NC&user=General%20Public AND A DRAWING TITLED AERIAL TOPOGRAPHIC SURVEY-ALLEN STEAM STATION BY WSP, JOB NUMBER 157002.00 AND DRAWING FILE NAME APRIL 2014_ALLEN_FINAL_10-30-15.DWG SAMPLE LOCATIONS WERE OBTAINED FROM HDR INFORMATION AND MAY BE APPROXIMATE IN SOME CASES. SOIL OR GEOTECHNICAL BORING APPROXIMATE POND OR RESERVOIR (NON-JD) APPROXIMATE EFFLUENT CHANNEL APPROXIMATE ASH BASIN PONDED WATER AB-37SAB-37D AB-36S AB-36D SB-1 AB-35D AB-35S AB-35BR SB-6 SB-2 SB-4 SB-3 AB-2D AB-2 GWA-22S GWA-22D AB-13S AB-13D S-10 OW-18 AB-30SAB-30D AB-28D AB-28S OW-19 OW-12 OW-8 AB-34S AB-34D SB-5 OW-3 AB-39S AB-39D OW-7 AB-33D AB-33S CCR-5DCCR-5 CCR-6DCCR-6 CCR-7D CCR-7S CCR-8D CCR-8S CCR-9S CCR-9D OW-5 S-9 OW-10 AB-32S AB-32D OW-9 OW-20 AB-31D AB-31S AB-29D AB-29S AB-29SL AB-27DAB-27BR AB-27S SW-4 SW-3 GWA-5D GWA-5S GWA-5BRA CCR-11S CCR-11D OW-16 GWA-4D GWA-4S GWA-4BR AB-9D AB-9S SW-7 ANSW-16 CCR-14S CCR-14D AB-26D AB-26S GWA-3D GWA-3S GWA-3BRA SB-9 SW-2 CCR-17S CCR-17D S-5 S-6 S-7 CCR-16D CCR-16S S-8B S-8 ANSW-15 S-4 ANSP002 AB-10D AB-10S ANSP002 S-3 ANWW-2 S-2 CCR-18S CCR-18D AB-22D AB-22BRL AB-22S SW-1 ANSP005 CCR-20SCCR-20D CCR-22S AB-11D CCR-23D CCR-23S GWA-2D GWA-2S GWA-1D GWA-1S GWA-1BR S-1 AB-12S AB-12D GWA-26S AB-5 pH WELL CCR-21D CCR-21S AB-21S AB-21D AB-21SLAB-21BR AB-21BRL SB-8 AB-23S AB-20S AB-20D GWA-9D GWA-9BR GWA-9S SW-5 AB-4S AB-4D AB-4BR AL49 AL58AL57 AL55 GWA-23D GWA-23S BGSB-GWA-23 AL51 AL56 AL54 AB-24S AB-24D AB-24BRAB-24SL ANWW-3 AB-14D AB-14BR AL59 AL60AL61AL62 AL67 AL68 AL69 AL70 AL71 AL63 AL72 AL73 AL53AL52 AL66 AL65 AL64 SB-7 AB-38D AB-38S AB-38BR GWA-18D GWA-18S CCR-1SCCR-1DA CCR-BG-1S AB-1R AB-1 GWA-17DGWA-17S CCR-2S CCR-2D GWA-8D BG-4D BG-4S BG-4BR AL133 AL1 AL131 BGSB-BG-3 BG-3S BG-2D BG-2S BG-2BRA-2 BGSB-BG-2 GWA-16DGWA-16S AL139 AL3 AL96 AL95 CCR-3DA CCR-3S GWA-7D GWA-7S GWA-6DA GWA-6S CCR-4SA CCR-4DA BGSB-BG-1 AL35 AL101 AL48 AL93 AL94 AL114 AL47 AL142 AL45 AL46 AL37 AL44 AL43AL38 AL36 AL92 AL39 AL50 AL50 GWA-24D AB-25BR AB-25S AB-25SL AL113 AL121 AL141 AL74 AL100 AL20 AL22 AL34 AL21 AL23 AL33 AL32 AL24AL25 GWA-21DA GWA-21S GWA-21BR AL75 AL76 AL84 AL83 AL82 AL81 AL78 AL77 AL79AL80 GWA-14S GWA-14DA AL31 AL30 AL32-?? AL7 AL123 AL102 AL15 AL14 AL13 AL12 AL136 AL140 AL11 AL10 AL12 AL116 AL117 AL9 AL118 AL8 AL8-? AL4 AL5 GWA-19D GWA-19S AL19 AL18 AL17 AL16 GWA-15D GWA-15S AL6 AL29 AL28 AL110 AL27 AL26 AL130AL115 AL138 AL135 ANWW-4 SW-6 ANWW-1 ANSP001 ANTD001 AB-6AAB-6R AL111 AL108AL85 AL97 AL88 ANFD001 NPDES REGULATED PLANT WATER FEATURE NPDES REGULATED FLOW DIRECTION STAIRS ACTIVE ASH BASIN DISCHARGE TOWER PRIMARY POND 3PRIMARY POND 2PRIMARY POND 1 INACTIVE ASH BASIN ASH STORAGE STRUCTURAL FILL ASH STORAGE INACTIVE ASH BASIN RETIRED ASH BASIN ASH LANDFILL-PHASE I PERMIT NO. 3612 WILDLIFE RD FARM RD MILWOOD LN IDELWOOD LNARMST R O N G R D HIGHLAND WAY HEATHER GLENN CT CAMDEN CTHIGHLA N D PLJOHN D O U G L A S D R WARREN DR MITCHELL STMITCHELL STSOUTHPOINT D R RIVER R U N ARMS T R O N G R DLAKE M IST DR RIVE R R U N REESE WI L S O N R D NUTALL OAK LN NUTALL OAK LN WOODBEND DR LAKE HILL CTPLANT A L L E N R D CANAL RD BOAT C LUB RDSOUTHPOINT RDSOUTHPOINT RD (NC HWY 273)STRUCTURAL FILL STRUCTURAL FILL STRUCTURAL FILL POWER PLANT SOUTH POINT FIRE DEPARTMENT EATON CORPORATION SAILAWAY BAY COAL PILE LANDFILL COMPLIANCE BOUNDARY LANDFILL BOUNDARY DORS FILL BOUNDARY INACTIVE ASH BASIN WASTE BOUNDARY 1/16/2018 1/16/2018 HOLDING BASIN BG-2BR BG-3D CCR-3D CCR-1D CCR-4D CCR-4S GWA-14D GWA-21D SOUTHPOINT RD (NC HWY 273)SOUTHPOINT RD (NC HWY 273)GWA-26D BG-1D AB-22BR GWA-3BR AB-8 STAIRS 48" HDPE DISCHARGE PIPE CULVERT CULVERT DISCHARGE TOWER HEAD WALL EMERGENCY SPILLWAY PIPES OBSERVATION WELL AT NEW HOLDING BASIN DEWATERING WELL AT NEW HOLDING BASIN GWA-5BR CCR-11SA LAKE WYLIE (CATAWBA RIVER ) P-1 PIEZOMETER IN UNKNOWN ZONE (AECOM DATA) OW-15 OW-16 OW-18 OW-17 OW-14 OW-13 OW-22 OW-21PN-2D PN-1D OW-20 OW-12 OW-11 OW-8 OW-10 P-7 P-9 AL39 AL36 GWA-9BR GWA-9D GWA-9S GWA-5BR S-3 SB-7 SW-2 NPDES OUTFALL 002 NPDES OUTFALL 001 CELL 1 CELL 2A CELL 2B OW-5P-1 OW-2 P-3 OW-4 OW-6 RAB ASH LANDFILL WASTE BOUNDARY BASED ON LINER LIMITS RAB ASH LANDFILL COMPLIANCE BOUNDARY RAB ASH LANDFILL WASTE BOUNDARY BASED LINER LIMITS IN THE S&ME DRAWINGS FOR THE RAB ASH LANDFILL PHASE I, PROJECT NUMBER 7235-14-011, DATED 06-16-2015. RETIRED ASH BASIN SW-1: pH=7, Eh=292.2, As=5.1, Sb=0.3 j, Ba=55.8, Be=0.026 j, B=921, Cd=<0.08, Cl=37.9, Cr=0.016 j, Cr (IV)=<0.5, Co=1.3, Fe=126, Mn=69.9, Mo=9.1, Ni=2.4, Se=1.1, Sr=144, SO4=43.4, Tl=0.075 j, TDS=157, V=0.79 B ANSP005: pH=6.45, Eh=370.7, As=<1, Sb=<5, Ba=52, Be=<1, B=370, Cd=<0.8, Cl=6.7, Cr=<5, Cr (IV)=0.033, Co=1.4, Fe=160, Mn=4.1 j, Mo=1.6 j, Ni=<5, Se=<5, Sr=140, SO4=98.9, Tl=<1, TDS=366, V=<3 ANTD001: pH=7.3, Eh=309.5, As=<1, Sb=<5, Ba=17, Be=<1, B=1200, Cd=<0.8, Cl=9.5, Cr=<5, Cr (IV)=<0.03, Co=0.74 j, Fe=79, Mn=290, Mo=12.4, Ni=<5, Se=<5, Sr=1700, SO4=235, Tl=<1, TDS=569, V=<3 ANSW-15: pH=7.2, Eh=327.8, As=5, Sb=<0.5, Ba=140, Be=0.011 j+, B=500, Cd=<0.08, Cl=7, Cr=0.38 j+, Cr (IV)=<0.03, Co=0.46, Fe=150, Mn=160, Mo=13.8, Ni=0.64, Se=<0.5, Sr=860, SO4=50.6, Tl=0.025 j, TDS=231 j+, V=0.19 j SW-7: pH=7.4, Eh=303.1, As=0.64, Sb=0.33 j, Ba=16.4, Be=0.017 j,B, B=120, Cd=<0.08, Cl=8.6, Cr=0.055, Cr (IV)=0.3 j, Co=0.17, Fe=333, Mn=61.5, Mo=0.46 j,B, Ni=<0.5, Se=<0.5, Sr=42.2, SO4=6.3, Tl=<0.1, TDS=60, V=1.6 SW-6: pH=7.4, Eh=300, As=0.52, Sb=0.34 j, Ba=10.6, Be=<0.1, B=60.3, Cd=<0.08, Cl=7, Cr=0.029, Cr (IV)=0.19 j, Co=0.086 j, Fe=178, Mn=31.4, Mo=0.37 j,B, Ni=<0.5, Se=<0.5, Sr=30.2, SO4=4.7, Tl=<0.1, TDS=57, V=1.4 SW-3: pH=7.4, Eh=303, As=0.8, Sb=0.31 j, Ba=24.5, Be=0.022 j, B=55.6, Cd=<0.08, Cl=6.2, Cr=0.053, Cr (IV)=0.28 j,B, Co=0.065 j,B, Fe=50.4, Mn=9.9, Mo=0.54, Ni=<0.5, Se=<0.5, Sr=30.2, SO4=5, Tl=0.048 j, TDS=38, V=1.4 SW-5: pH=5.5, Eh=530, As=0.75, Sb=<0.5, Ba=159, Be=1.8, B=1140, Cd=0.19, Cl=4.7, Cr=<0.25 D3, Cr (IV)=0.23 j,B, Co=86.6, Fe=8080, Mn=11400, Mo=<0.5, Ni=86.3, Se=3, Sr=2730, SO4=666, Tl=0.24, TDS=1020, V=<0.3 SW-2: pH=6.8, Eh=281, As=5.4, Sb=0.33 j, Ba=62.7, Be=0.055 j, B=1030, Cd=0.058 j, Cl=38.9, Cr=0.037, Cr (IV)=0.28 j, Co=1.4, Fe=121, Mn=91.2, Mo=8.9, Ni=2.8, Se=1.1, Sr=162, SO4=44, Tl=0.11, TDS=167, V=0.75 B SW-4: pH=6.5, Eh=270, As=0.91, Sb=0.3 j, Ba=19.6, Be=0.94, B=107, Cd=0.55, Cl=9.5, Cr=<0.12 D3 M1, Cr (IV)=0.95, Co=25.2, Fe=4620, Mn=522, Mo=2.2, Ni=28.8, Se=1.4, Sr=74.6, SO4=63.4, Tl=0.11, TDS=75, V=5.9 ANSW-16: pH=7.7, Eh=306.1, As=0.18, Sb=<0.5, Ba=28, Be=<0.1, B=<50, Cd=<0.08, Cl=2.5, Cr=0.21 j, Cr (IV)=0.074, Co=0.057 j+, Fe=34 j, Mn=11, Mo=0.21 j, Ni=<0.5, Se=<0.5, Sr=65, SO4=6.6, Tl=0.02 j, TDS=94, V=0.41 ANWW-1: pH=7.2, Eh=307.6, As=0.59, Sb=0.4 j, Ba=14.7, Be=0.037 j, B=55.5, Cd=<0.08, Cl=6.3, Cr=0.56 B, Cr (IV)=0.061, Co=0.21, Fe=441, Mn=53.9, Mo=0.33 j, Ni=<0.5, Se=<0.5, Sr=31, SO4=4.3, Tl=0.044 j, TDS=41, V=1.7 ANWW-3: pH=7.82, Eh=300.2, As=0.63, Sb=0.23 j, Ba=14, Be=<0.2, B=59, Cd=<0.08, Cl=6.5, Cr=0.5, Cr (IV)=NA, Co=0.16 j, Fe=270, Mn=46, Mo=0.41 j, Ni=0.3 j, Se=<0.5, Sr=37, SO4=4.7, Tl=<0.1, TDS=59, V=1.4 ANWW-4: pH=7.5, Eh=295.5, As=0.55, Sb=0.41 j, Ba=16.8, Be=0.024 j, B=57.4, Cd=<0.08, Cl=6.4, Cr=0.47 j, Cr (IV)=0.068, Co=0.44, Fe=515, Mn=164, Mo=0.33 j, Ni=0.48 j, Se=0.32 j, Sr=40, SO4=7.7, Tl=<0.1, TDS=42, V=2.4 ANWW-2: pH=NM, Eh=NM, As=NA, Sb=NA, Ba=NA, Be=NA, B=NA, Cd=NA, Cl=NA, Cr=NA, Cr (IV)=NA, Co=NA, Fe=NA, Mn=NA, Mo=NA, Ni=NA, Se=NA, Sr=NA, SO4=NA, Tl=NA, TDS=NA, V=NA S-1: pH=6.9, Eh=220.7, As=0.98, Sb=<0.5, Ba=108, Be=0.094 j, B=<50, Cd=<0.08, Cl=4.7, Cr=2.8, Cr (IV)=0.3, Co=3.5, Fe=9700, Mn=1150, Mo=<0.5, Ni=1.1, Se=1.2, Sr=93.1, SO4=1.3, Tl=0.037 j, TDS=75, V=10.8 S-2: pH=7, Eh=284.8, As=0.12, Sb=<0.5, Ba=91.4, Be=0.056 j, B=818, Cd=<0.08, Cl=47.8, Cr=0.31 j,B, Cr (IV)=0.031, Co=0.37, Fe=137, Mn=65.1, Mo=<0.5, Ni=1.6, Se=0.45 j, Sr=76.3, SO4=16.9, Tl=0.057 j, TDS=103, V=0.16 j S-3: pH=7.8, Eh=363, As=<1, Sb=<1, Ba=57, Be=NA, B=841, Cd=<1, Cl=51, Cr=<1, Cr (IV)=NA, Co=NA, Fe=221, Mn=137, Mo=<1, Ni=<1, Se=<1, Sr=NA, SO4=30, Tl=<0.2, TDS=300, V=NA S-4: pH=7.9, Eh=361, As=<1, Sb=<1, Ba=57, Be=NA, B=923, Cd=<1, Cl=60, Cr=<1, Cr (IV)=NA, Co=NA, Fe=147, Mn=104, Mo=<1, Ni=1.25, Se=<1, Sr=NA, SO4=33, Tl=<0.2, TDS=320, V=NA S-5: pH=6.7, Eh=355, As=0.066 j, Sb=<0.5, Ba=210, Be=<0.1, B=1000, Cd=0.13, Cl=63.8, Cr=0.2 j, Cr (IV)=0.041, Co=35.4, Fe=<50, Mn=1400, Mo=<0.5, Ni=9.1, Se=0.52, Sr=200, SO4=50.1, Tl=0.087 j, TDS=249, V=0.13 j S-6: pH=4.2, Eh=508, As=<1, Sb=<1, Ba=324, Be=NA, B=1150, Cd=<1, Cl=79, Cr=<1, Cr (IV)=NA, Co=NA, Fe=188, Mn=2600, Mo=<1, Ni=3.02, Se=<1, Sr=NA, SO4=65, Tl=0.31, TDS=300, V=NA S-7: pH=5.8, Eh=391, As=0.063 j, Sb=<0.5, Ba=72, Be=<0.1, B=780, Cd=<0.08, Cl=8.3, Cr=0.15 j, Cr (IV)=<0.03, Co=7.6, Fe=110, Mn=430, Mo=<0.5, Ni=0.99, Se=<0.5, Sr=190, SO4=72.3, Tl=0.027 j, TDS=179, V=0.14 j S-8B: pH=6.7, Eh=372, As=<1, Sb=<1, Ba=55, Be=NA, B=1330, Cd=<1, Cl=17, Cr=<1, Cr (IV)=NA, Co=NA, Fe=178, Mn=<5, Mo=<1, Ni=5.4, Se=<1, Sr=NA, SO4=220, Tl=<0.2, TDS=350, V=NA S-8: pH=8, Eh=372, As=<1, Sb=<1, Ba=55, Be=NA, B=423, Cd=<1, Cl=7.3, Cr=<1, Cr (IV)=NA, Co=NA, Fe=19, Mn=<5, Mo=1.34, Ni=1.05, Se=<1, Sr=NA, SO4=80, Tl=<0.2, TDS=330, V=NA S-9: pH=7, Eh=350.9, As=NA, Sb=NA, Ba=NA, Be=NA, B=NA, Cd=NA, Cl=NA, Cr=NA, Cr (IV)=NA, Co=NA, Fe=NA, Mn=NA, Mo=NA, Ni=NA, Se=NA, Sr=NA, SO4=NA, Tl=NA, TDS=NA, V=NA S-10: pH=5.7, Eh=444, As=<1, Sb=<1, Ba=49, Be=NA, B=887, Cd=<1, Cl=8.8, Cr=<1, Cr (IV)=NA, Co=NA, Fe=27, Mn=3120, Mo=<1, Ni=6.18, Se=<1, Sr=NA, SO4=110, Tl=<0.2, TDS=180, V=NA BG-1S BG-1DA OW-6 OW-5 OW-4 OW-3 OW-2 OW-8 OW-1 OW-7 OW-6 AB-23BRU AB-25BRU GWA-24SGWA-24BR GWA-24SA GWA-6BR GWA-6D CCR-BG-1D CCR-BG-1DA CCR-11DA CCR-22DA CCR-22D DATA NOTES: DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFER TO ANALYTICAL DATA TABLE NOTES FOR QUALIFIER DEFINITIONS. DATA SHOWN ON MAP IS THE MOST RECENT DATA AVAILABLE THROUGH Q3 2017. NA=NOT ANALYZED NM=NOT MEASURED Sample ID: pH (S.U.), Eh (mV), As=Arsenic (ug/L): Ba=Barium (ug/L): B=Boron (ug/L): Be=Beryllium(ug/L): Cd=Cadmium(ug/L): Cl=Chloride (mg/L): Cr=Total Chromium (ug/L): Co=Cobalt (ug/L): Fe=Iron (ug/L): Mn=Manganese (ug/L): Mo=Molybdenum(ug/L): Ni=Nickel (ug/L): Sb=Antimony(ug/L): Se=Selenium(ug/L): Sr=Strontium (ug/L): SO4=Sulfate (mg/L): Tl=Thallium (ug/L): TDS=Total Dissolved Solids (mg/L): V=Vanadium (ug/L) SAMPLE KEY P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\DWG\DE ALLEN CSAUP BASE MAP CALL OUTS_1-12-18.dwg GWA-8S GWA-6BRA SW-D1: pH=7.2, Eh=320.5, As=0.81, Sb=0.33 j, Ba=21.4, Be=0.013 j,B, B=383, Cd=<0.08, Cl=17.5, Cr=0.028, Cr (IV)=0.29 j, Co=0.2, Fe=256, Mn=44.9, Mo=0.89 B, Ni=<0.5, Se=<0.5, Sr=60.8, SO4=11.7, Tl=0.019 j,B, TDS=92, V=1.4 SW-U1: pH=7, Eh=333.2, As=0.53, Sb=0.42 j, Ba=13.3, Be=<0.1, B=60.5, Cd=<0.08, Cl=7.1, Cr=0.03, Cr (IV)=0.33 j, Co=0.12, Fe=202, Mn=44.3, Mo=0.3 j,B, Ni=<0.5, Se=<0.5, Sr=34.5, SO4=4.5, Tl=<0.1, TDS=52, V=1.3 NOTE: 1.DISPLAYED WATER SUPPLY WELL LOCATIONS REFLECT INFORMATION AVAILABLE UP TO DECEMBER 31, 2015.PIPING OBTAINED FROM DUKE ENERGY, STANTEC, AND SYNTERRA AOW INSPECTION.