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HomeMy WebLinkAboutNC0005088_FINAL_CSA_Figures_201801312018 Comprehensive Site Assessment Report January 2018 Cliffside Steam Station SynTerra 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: SCOTT SPINNER DATE:ADAM FEIGL ES1 10/09/2017 01/23/2018 4:39 PM P:\Duke Energy Progress.1026\00 GIS BASE DATA\Cliffside\Mapdocs\CSA_Supplement_2\CSM3D\Cliff_3D_ES1_v2.dwg FIGURE ES-1 APPROXIMATE EXTENT OF IMPACTS CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA VISUAL AID ONLY - DEPICTION NOT TO SCALE CAROLINAS TRANSITION ZONE NORTH ASH BASIN WASTE BOUNDARY GENERALIZED GROUNDWATER FLOW DIRECTION APPROXIMATE LANDFILL AND ASH STORAGE WASTE BOUNDARIES 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 IN MULTIPLE FLOW ZONES. WATER SUPPLY WELL LOCATION DUKE ENERGY PROPERTY BOUNDARY LEGEND AREA OF CONCENTRATION IN GROUNDWATER ABOVE NC2L (SEE NOTE 5) STREAM WITH FLOW DIRECTION BROAD RIVER HIG H W A Y 221 ALT CCP LANDFILL DUKE POWER RD SURFICIAL M C C R A W R D WHEL C H E L R D BEDROCK BROAD R I V E R SUC K C R E E K UNIT 6 UNIT 5 CLIFFSIDE STEAM STATION UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREAUNIT 5 INACTIVE ASH BASIN ACTIVE ASH BASIN 01/19/2018 11:44 AM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\DE CLIFFSIDE CSAUP USGS.dwg FIGURE 1-1 SITE LOCATION MAP CLIFFSIDE STEAM STATION MOORESBORO, NORTH CAROLINA BOILING SPRINGS NC & CHESNEE SC QUADRANGLE CLIFFSIDE STEAM STATION PARCEL LINE ACTIVE ASH BASIN WASTE BOUNDARY SOURCE: 2017 CHESNEE (1:24000) AND 2016 BOILING SPRINGS (1:24000)USGS TOPOGRAPHIC MAPS OBTAINED FROM THE USGS STORE AT http://store.usgs.gov/b2c_usgs/b2c/start/%%%28xcm=r3standardpitrex_prd%%%29/.do UNITS 1-4 INACTIVE ASH BASIN WASTE BOUNDARY UNIT 5 INACTIVE ASH BASIN WASTE BOUNDARY CCP LANDFILL WASTE BOUNDARY 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 1-1 SITE LOC MAP 12/7/2017 SCOTT SPINNER DUKE ENERGY CAROLINAS 1000 0 1000 2000 GRAPHIC SCALE IN FEET FIGURE 2-1SITE VICINITY MAPCLIFFSIDE ST EAM STAT IONDUKE ENERGY CAROLINAS, LLCMOORESBORO, NORT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAG ER: S. SPINNERCHECKED BY: M. YOUNGBLOOD 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\Cliffsid e \Mapdo cs\CSA_Supplement_2\CLIFFSIDE_SiteVicinity_201711.mxd 400 0 400 800200 GRAPHIC SCALE IN FEET UNIT 5INACTIVEASH BASIN UNITS 1-4INACTIVEASH BASIN ACTIVE ASH BASIN BROAD RIVER H I G H WA Y 2 2 1 A L T CCPLANDFILL LEGEND ASH BASIN WASTE BOUNDARYINACTIVE ASH BASIN WASTE BOUNDARYASH BASIN COMPLIANCE BOUNDARYLANDFILL BOUNDARYASH STORAGE BOUNDARYLANDFILL COMPLIANCE BOUNDARYDUKE ENERGY CLIFFSIDE PLANT BOUNDARY NOT ES: 1) 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 CIRCUMS TANCES WARRANT. 2) AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EART H PRO AND IS DATED OCTOBER 8, 2016. D U K E P O W E R R O A D UNIT 6 UNIT 5 ASH STORAGE AREA FIGURE 2-2 1959 USGS TOPOGRAPHIC MAP CLIFFSIDE STEAM SATION MOORESBORO, NORTH CAROLINA COWPENS, SC-NC TOPOGRAPHIC MAP SOURCE: 1959 BOILING SPRINGS S.C.-N.C. (1:62500) USGS TOPOGRAPHIC MAPS OBTAINED FROM THE USGS STORE AT http://store.usgs.gov/b2c_usgs/b2c/start/%%%28xcm=r3standardpitrex_prd%%%29/.do S U C K C R E E K EARLIEST HIGH RESOLUTION USGS TOPOGRAPHIC MAP OF THIS AREA IS THE 1971 BOILING SPRINGS, NC (1:24,000). SEE FIGURE 2-3. 01/19/2018 11:42 AM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\DE CLIFFSIDE CSAUP USGS.dwg CLIFFSIDE STEAM STATION PARCEL LINE ACTIVE ASH BASIN WASTE BOUNDARY CCP LANDFILL WASTE BOUNDARY 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY:DATE:JOHN CHASTAIN 2-2 1959 USGS 11/21/2017 SCOTT SPINNER DUKE ENERGY CAROLINAS 1000 0 1000 2000 GRAPHIC SCALE IN FEET SUCK CREE K UNITS 1-4 INACTIVE ASH BASIN WASTE BOUNDARY UNIT 5 INACTIVE ASH BASIN WASTE BOUNDARY 01/19/2018 11:40 AM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\DE CLIFFSIDE CSAUP USGS.dwg FIGURE 2-3 1971 USGS TOPOGRAPHIC MAP CLIFFSIDE STEAM STATION MOORESBORO, NORTH CAROLINA CHESNEE SC QUADRANGLE SOURCE: 1971 CHESNEE (1:24000) USGS TOPOGRAPHIC MAP OBTAINED FROM THE USGS STORE AT http://store.usgs.gov/b2c_usgs/b2c/start/%%%28xcm=r3standardpitrex_prd%%%29/.do CLOSEST HIGH RESOLUTION USGS TOPOGRAPHIC MAP OF THIS AREA IS THE 1983 CHESNEE, SC (1:24,000). SEE FIGURE 2-2. BROAD RIVER CLIFFSIDE STEAM STATION PARCEL LINE ACTIVE ASH BASIN WASTE BOUNDARY CCP LANDFILL WASTE BOUNDARY 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com PROJECT MANAGER: LAYOUT: DRAWN BY:DATE:JOHN CHASTAIN 2-3 1971 USGS 11/21/2017 SCOTT SPINNER DUKE ENERGY CAROLINAS 1000 0 1000 2000 GRAPHIC SCALE IN FEET UNITS 1-4 INACTIVE ASH BASIN WASTE BOUNDARY UNIT 5 INACTIVE ASH BASIN WASTE BOUNDARY Intake Rack Evaporative Logs Unit 8 Cooling Tower 4.7 mgd 0.8 mgd 0.4 mgd Ash Basin 0.4 mgd Miscellaneous Waste Streams Unit 8 Bottom Ash 8FC Unit 6 Plant Make Up Water City Water Sanitary 3.6 mgd Outfall 004 9.97 mgd Outfall 002 12.87 mgd Outfall 002A Intermittent Multiple Intermittent Stormwater Discharges 0.1 mgd 2.6 mgd Station Sumps 0.3 mgd 0.8 mgd 1.1 mgd Evaporative Loss Unit 5 Condenser Cooling Water Ash Sluice for Unit 5 Stormwater Station Sumps Evaporative Loss Unit 8 Dry FGD Unit 8 FGD 1.8 mgd 0.3 mgd Evaporative Loss Solid Waste Disposal 0.8 mgd LEGEND Projected New Operations 2012- Tan Raw Water Pump FGD Makeup Unit 6 FGD WFGD Wastewater Treatment Systems Traveling Screen Wash Water B R O A D R I V E R FIGURE 2-8 NPDES WATER FLOW DIAGRAM CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: DUKE ENERGY PROJECT MANAGER: S. SPINNER LAYOUT: DATE: DECEMBER 2017 FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures Source: NPDES Permit NC0005088, March 1, 2011 Unit 6 Cooling Towers Unit 6 Makeup Water Storage Tank Yard Drainage Basin FIGURE 2-9NPDES WATER FLOW DIAGRAM POST OUTFALL 005 OPERATIONCLIFFSIDE STEAM STATIONDUKE ENERGY CAROLINAS, LLCMOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.comDRAWN BY: DUKE ENERGY PROJECT MANAGER: S. SPINNERLAYOUT: DATE: DECEMBER 2017FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\FiguresSource: Duke NPDES permit renewal application submitted to NCDEQ on January 28, 2015 Source: HDR, Comprehensive Site Assessment Report Cliffside Steam Station Ash Basin, August 18, 2015. Source: HDR, Comprehensive Site Assessment Report Cliffside Steam Station Ash Basin, August 18, 2015 Source: HDR, Comprehensive Site Assessment Report Cliffside Steam Station Ash Basin, August 18, 2015 FIGURE 3-4 PIPER DIAGRAM ̶ ASH PORE WATER ACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: A. ALBERT PROJECT MANAGER: S. SPINNER LAYOUT: A. ALBERT DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\PIPERS\Piper Diagram - Ash Pore Water Groundwater_ Active Ash Basin.pptx Well ID % Difference Notes: Pink– Ash pore water monitoring well Gray– Background monitoring 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, for background monitoring wells only, 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. B AB-03S 3.489 K AB-03SL 0.974 A AB-04S 1.288 I AB-04SL 3.853 L AB-05S 0.909 P AB-06S 1.802 H GWA-30S 1.993 J MW -32D 8.180 Generally characteristic of areas in or near central active ash basin Generally characteristic of central deeper area in active ash basin Generally characteristic of background conditions AB-4S AB-4SL GWA-24BR 6.114 MW -22BR 0.674 MW -22DR 2.135 MW -24DR 4.468 L L O A FIGURE 3-5 PIPER DIAGRAM ̶ ASH PORE WATER UNITS 1- 4 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: A. ALBERT PROJECT MANAGER: S. SPINNER LAYOUT: A. ALBERT DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\PIPERS\Piper Diagram - Ash Pore Water Groundwater.pptx Well ID % Difference Notes: Pink– Ash pore water monitoring well Gray– Background monitoring 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, for background monitoring wells only, 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. . O IB-01S 9.343 K IB-02S-SL 2.352 J IB-04S/SL 6.090 H GWA-30S 1.993 J MW -32D 8.180 Generally characteristic of deeper areas in Units 1-4 Inactive ash basin Generally characteristic of background conditions Generally characteristic of shallower area in Units 1-4 Inactive ash basin IB-04S/SL H I O G GWA-24BR 6.114 MW -22BR 0.674 MW -22DR 2.135 MW -24DR 4.468 FIGURE 3-6 PIPER DIAGRAM ̶ ASH PORE WATER UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: A. ALBERT PROJECT MANAGER: S. SPINNER LAYOUT: A. ALBERT DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\PIPERS\Piper Diagram - Ash Pore Water Groundwater_ Unit 5.pptx Well ID % Difference Notes: Pink– Ash pore water monitoring well Gray– Background monitoring 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, for background monitoring wells only, 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. J U5-07S 4.227 I U5-07SL 8.286 H GWA-30S 1.993 J MW -32D 8.180 Generally characteristic of background conditions Generally characteristic of deeper area in central Unit 5 Inactive ash basin Generally characteristic of shallower area in central Unit 5 Inactive ash basin U5-7SL U5-7S GWA-30BR 4.031 MW -32BR 4.842 M D Copyright:© 2013 National Geographic Society, i-cubed FIGURE 4-1USGS MAP WITH WATER SUPPLY WELLSCLIFFSIDE STEAM STATIONDUKE ENERGY CAROLINAS, LLCDRAWN BY: A. ROBINSONPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/25/2018 P:\Duke Energy Progress.1026\00 GIS BASE DATA\Cliffside\Mapdocs\CSA_Supplement_2\Fig04-01 USGS Water Supply Wells.mxd FIGURE 4-1USGS MAP WITH WATER SUPPLY WELLSCLIFFSIDE STEAM STATIONDUKE ENERGY CAROLINAS, LLCMOORESBORO, NORTH CAROLINA 1,000 0 1,000 2,000500 IN FEET GRAPHIC SCALEDATE: 2017-07-13CONTOUR INTERVAL: 10ftMAP DATE: 1987 CLIFFSIDE STEAM STATIONRUTHERFORD COUNTY DRAWN BY: A . ROBINSONCHECKED BY: M. YOUNGBLOODPROJECT MANAGER: S. SPINNER SOURCE:USGS 24K TOPOGRAPHIC MAP OBTAINED VIA ESRI ARCGIS ONLINE, BOILING SPRINGS SOUTH AND CHESNEE QUADRANGLES, QUADID 3508186 AND 3508187. SAMPLED WATER SUPPLY WELL NOT SAMPLED WATER SUPPLY WELL ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY LANDFILL WASTE BOUNDARY ASH STORAGE AREA WASTE BOUNDARY DUKE ENERGY CAROLINAS CLIFFSIDE PLANT SITE BOUNDARY LEGEND <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< <<< <<<<<<<< < ACTIVEASH BASIN UNIT 5INACTIVEASH BASIN B R O A D R IVER SUCK CREEK BROAD RIVER CCPLANDFILL ASHSTORAGE ASHSTORAGE UNITS 1-4INACTIVEASH BASIN STATE RD 1193 V I N E W O O D D R OSPREY LNMCCOMBS RDSTATE RD 1189STATERD 1209PROSPECT CHURCH RDF O X P L STATE RD 1207WOOD RDSTATERD 1210BARNS RDSTATE RD 2503RIVER FRONT DRP R O S P E C T C H U R C H R D W H E L C H E L R D MCCRAW RD STATE R D 1002 STATERD 1192LAKE HOUSER RDSTATE RD 1209STATE RD 1995 WESTON DRC O U N T R Y MIS T D R B OJONES RD HANEY DR OLDFIELD RDKIR B Y R D LIONEL STS T A T E R D 2 1 0 9 WATERLOO RDHIN E S R D G REEN A CRES RD CAMEO DR H IN E S R DSTATERD 2102 STATERD 1995STATE R D 2117 FERRY RD COBB RDSTATERD 2101 BALLENGER RD STATERD 1976C H E S T E R FIE L D R D DUKE PO W ER RD STATE RD 1002 OLD US HWY 221ASTATE RD 1993U S H W Y 221 A L T C9-A C5 C10 2800Riverfront C1-3 C1-2 C3 C1 2801Riverfront C8 C7 C23 C17 C24-1 C16 C11 C15 C4-3C19 C9-B C8-Spring 105 Downriver C26 C-1002 C-1006 C25 C2968Riverfront FIGURE 4-2WATER SUPPLY WELL LOCATIONSCLIFFSIDE STEAM ST AT IONDUKE ENERGY CAROLINAS, LLCMOORESBORO, NORT H CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: S. SPINNERCHECKED BY: M .YOUNGBLOOD DATE: 01/23/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Cliffside\Mapdocs\CSA_Supplement_2\Fig04-02 Cliffside - Water Supply Map.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET NOTES:WATER SUPPLY WELL ANALYTICAL RESULTS ARE LOCATED ON TABLE 4-3. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON SEPTEMBER 26,2017. AERIAL WAS COLLECTED ON APRIL 1, 2017. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). AT THE TIME OF COMPLETION OF RECEPTOR SURVEYS THE UNIT 5 INACTIVE ASHBASIN AND UNITS 1-4 INACTIVE ASH BASIN WERE ASSUMED TO HAVE COMPLIANCEBOUNDARIES. LEGEND WATER SUPPLY WELL SAMPLED BY NCDEQ (2015)OR BY D UKE ENERGY (2017) WATER SUPPLY WELL NOT SAMPLED ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY LANDFILL / ASH STORAGE AREA BOUNDARY HALF-MILE RADIUS OF COMPLIANCE BOUNDARY DUKE ENERGY CARO LINAS CLIFFSIDE PLANTSITE BOUNDARY <STREAM (AMEC N RTR 2015) FIGURE 4-3 PIPER DIAGRAM ̶ WATER SUPPLY WELLS ACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: A. ALBERT PROJECT MANAGER: S. SPINNER LAYOUT: A. ALBERT DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\PIPERS\Piper Diagram - Water Supply Well Active Ash Basin.pptx Well ID % Difference Notes: Blue– Water Supply Well Purple– Bedrock monitoring well Pink– Ash pore water monitoring well Gray– Background bedrock monitoring 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. J C-1002 6.268 O C-1006 7.866 P C-1007 9.881 I MW -24DR 4.468 J MW -32BR 4.842 K BG-01BR 9.194 P GWA-21BR 8.114 J MW -20DR 9.746 A AB-04S 1.316 P AB-04SL 3.853 C AB-05S 0.909 AB-06S 1.802 D GWA-20BR 19.261 Generally characteristic of areas in or near central active ash basin Generally characteristic of central deeper area in active ash basin Generally characteristic of background conditions FIGURE 4-4 PIPER DIAGRAM ̶ WATER SUPPLY WELLS UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: A. ALBERT PROJECT MANAGER: S. SPINNER LAYOUT: A. ALBERT DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\PIPERS\Piper Diagram - Water Supply Well Unit 5 Inactive.pptx Well ID % Difference Notes: Blue– Water Supply Well Purple– Bedrock monitoring well Pink– Ash pore water monitoring well Gray– Background bedrock monitoring 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. . J C-1002 6.268 O C-1006 7.866 P C-1007 9.881 K GWA-31BR 8.803 J MW -38BR 1.340 M U5-02BR 1.007 A U5-07S 4.277 D U5-07SL 8.286 Generally characteristic of deeper area in central Unit 5 Inactive ash basin U5-7SL Generally characteristic of shallower area in central Unit 5 Inactive ash basin U5-7S Generally characteristic of background conditions GWA-30BR 4.031 MW -32BR 4.842 K P Broad River Cliffside Steam StationProperty Line REGIONAL GEOLOGIC MAPDUKE ENERGY CAROLINAS, LLCCLIFFSIDE STEAM STATION AUGUST 2015 5-1G:\Projects\Duke_Energy\Ash_Basin_GW_Assessment\Geologic_Site_Vicinity_Maps\MXDs\Fig_5_2_Cliffside_Site_Vicinity_Geology_Map_20150716.mxdDATE FIGURE 5,000 0 5,000 10,000SCALE (FEET) N CLEVELAND AND RUTHERFORD COUNTIES, NORTH CAROLINA OCsg - Granite of Sandy Mush CZbg - Biotite gneiss CZss - Sillimanite-mica schist 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. Source: HDR, Comprehensive Site Assessment Report Cliffside Steam Station Ash Basin, August 18, 2015 ooooooooooo oo oo oooo ooooo oooooooo ooo oo oooFIBR O A D R I V E R 18 10 22 18 2023 22 27 24 117 1821 8511 10 14 7 22 18 31 27 24 11 22 22 16 GneissGneiss Gneiss SchistSchistSchist Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Schist Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss GneissGneiss GneissGneiss Gneiss GneissGneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Schist Gneiss Gneiss Gneiss GneissGneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss Gneiss GneissGneiss Gneiss Gneiss Gneiss Gneiss Gneiss CZbg CZbg CZbg CZbg CZbg CZss CZss CZss CZss CZss CZss CZss CZss OCsg OCsg OCtg OCtg SITE GEOLOGIC MAPDUKE ENERGY CAROLINAS, LLCCLIFFSIDE STEAM STATION ASH BASINCLEVELAND AND RUTHERFORD COUNTIES, 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. HYDROGRAPHY WAS OBTAINED FROM USGS 7.5-MINUTE SERIES TOPOGRAPHIC MAPS CHESNEE, NC-SC, AND BOILING SPRINGS SOUTH, NC-SC.5. DUKE ENERGY PROPERTY BOUNDARY WAS SUPPLIED BY DUKE ENERGY REAL ESTATE.6. BASED ON GEOLOGIC MAP OF THE CHARLOTTE 1' x 2' QUADRANGLE, NORTH CAROLINA AND SOUTH CAROLINA (GOLDSMITH, MILTON, AND THORTON, 1988)7. SERVICE LAYER CREDITS: NC ONEMAP, NC CENTER FOR GEOGRAPHIC INFORMATION AND ANALYSIS, NC 911 BOARD N Legend Geology (OCsg) Granite of Sandy Mush - Light-gray,inequigranular, gneissic biotite monzogranitecontaining conspicuous microcline megacrysts upto 2 cm long; probably cogenetic with TolucaGranite (OCtg); garnet is common accessory (OCtg) Toluca Granite - Light-gray, medium-grained, weakly to well-foliated biotitemonzogranite and subordinate granodiorite;garnet, monazite, and muscovite are commonaccessories; forms masses generallyconformable with regional foliation (CZbg) Biotite Gneiss - Predominantly gray todark gray, fine to medium grained with somecoarse grained zones, thinly to medium bandedand consists of quartz, plagioclase, biotite, andminor amounts of muscovite and a few garnets;some zones are thickly banded; subordinatewhite mica schist zone noted (CZss) Sillimanite Schist - Gray to light gray, fineto medium grained and has subordinate zones ofbiotite gneiss Outcroppings Gneiss SchistTop-of-Rock at Borings Gneiss Quartzite Schist F Anticline I Anticline - OverturnedoStrike and Dip - Foliation and Joints Contacts - Solid where approximate; dotted whereconcealed DUKE ENERGY PROPERTY BOUNDARY ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY ASH BASIN COMPLIANCE BOUNDARYCOINCIDENT WITH DUKE ENERGYPROPERTY BOUNDARYooooooooooo o ooooFIGneiss GneissGneiss Gneiss GneissGneiss Gneiss Gneiss Gneiss Gneiss Gneiss CZbg 8 4 3 10 9 7652 1 3 2 1,000 0 1,000 2,000 SCALE (FEET) Source: HDR, Comprehensive Site Assessment Report Cliffside Steam Station Ash Basin, August 18, 2015 5-3 Source: HDR, Comprehensive Site Assessment Report Cliffside Steam Station Ash Basin, August 18, 2015 !(!( !(!( !(!( !(!( !(!( !(!( !(!( !( !( !(!( !(!( !( !( !( !( !( !( !( !( !( !(!( !(!( !(!(!( !(!(!( !(!( !(!( !( !( !(!( !(!(!( !(!(!(!(!(!( !( !(!(!(!( !( !( !(!( !(!( !( !( !( !(!( !( !( !( !(!( !(!( !(!( !(!( !(!( !( !(!( !( !( !( !( !(!( !(!( !( !(!(!( !(!( !(!( !( !(!( !(!(!( !( !(!(!(!( !(!( !(!( !( !( !(!( !(!(!( !(!( !( !( !(!( !(!(!(!( !(!( !( !( !(!( !(!( !( !(!( !(!( !(!( !(!(!( !(!( !( !( !(!( !(!(!(!( !(!( !(!( !(!( !(!( !( !(!(!( !( !(!( !(!( !(!(!( !( !( !(!( !(!( !(!( !(!( !(!( !(!( !(!( !( !( !(!( !(!( !( !( !( !( !( !( !( !( !( !( !(!( !(!( !(!(!(!( !(!(!( !(!(!( !(!( !( !(!( !( !( !( !(!( !(!(!( !(!( !(!(!( !( !( !( !(!( !(!( !(!( !(!( !(!(!( !(!(!(!(!(!(!( !( !(!(!(!( !( !( !(!( !(!( !( !( !( !(!( !( !( !( !(!( !(!( !(!( !(!( !(!( !( !(!(!( !( !( !(!( !( !( !(!( !(!( !(!(!( !(!(!( !(!( !(!(!( !( !(!(!( !(!(!( !( !(!(!(!( !(!( !(!( !( !( !(!( !(!(!( !( !(!( !(!( !(!( !(!(!( !(!( !( !( !( !(!(!( !(!(!(!(!( !(!( !(!( !(!( !(!( !(!( !(!(!( !(!( !(!( !(!( !(!(!( !( !( !( !( !( !( !(!( !( !( !( !( !( !( !(!(!( !( !( !( !(!(!( !(!( !( !(!( !( !( !( !( !(!( !( !( !( !( !( !(!( !(!( !(!( !( !( !(!( !(!( !(!( !( !( !(!( !(!( !(!( !( !( !(!( !(!( !( !( !( !(!(!(!( !( !( !(!( !( !(!( !( !( !(!(!(!(!( !(!( !( !(!( !(!( !(!( !(!( !(!( !(!( !( !(!(!(!(!(!( !(!( !(!( !( !(!( GWA-31D/BRA GWA-27DA/BR CLP-4 CLP-3 U5-3S/SA/D AS-1SB/DGWA-40S GWA-46D !(GWA-51D GWA-56S/D CCR-IB-3S/D CCR-12S/D CCR-13D CCR-15D U5-2S-SL CCR-CCP-1D CCR-CCP-2D CCR-CCP-3S/DA CCR-CCP-5S/D CCR-CCP-4D CCR-CCP-6S/D CCR-CCP-7D CCR-CCP-9S/D CCR-CCP-10S/DA CCR-CCP-11S/DCCR-CCP-15S/D CCR-CCP-14D CCR-CCP-13D CCR-CCP-12S/D CCR-U5-10S/D CCR-U5-9S CCR-U5-8S/D CCR-U5-1D CCR-U5-2DCCR-U5-3S/D CCR-U5-4S/D CCR-U5-5D CCR-U5-6S/D CCR-11S/D CCR-14D CCR-8D CCR-7S/D CCR-4D CCR-5D CCR-16S/D CCPMW-1S/D AB-6BR AB-2S/D/BRO AB-3S/SL/SLA/I/BRUA AB-4S/SL/D/BR AB-5S/BR/BRU AS-4S/D BG-1BR CCPMW-2S/D CCPMW-3S/D CCPMW-4 CCPMW-5 CCPMW-6S/D CCPTW-1S/D CCPTW-2 CLMW-1 CLMW-3S/D CLMW-6 GWA-11S/BRU GWA-20S/D/BR GWA-24S/D/BRGWA-45S/D GWA-47D GWA-48BR IB-1S/D MW-7D MW-8S/D MW-10S/D GWA-4S/D GWA-6S/D GWA-14S/D/BR GWA-25S/D GWA-26S/D GWA-30S/BRU/BR GWA-32D/BR GWA-34S GWA-35S/D GWA-36S/D GWA-37S/D GWA-38S/D GWA-42S MW-21D/BR MW-22DR/BR MW-24D/DR MW-34S/BRU MW-36S/BRU MW-38S/D/BR MW-40S/BRU MW-42S/DA GWA-2S/BRU/BR U5-1S/D U5-2S-SL-A/D/BR U5-4S/D/BR/BRA U5-6S/D U5-7S/SL/D U5-8S/D/BR GWA-10S/D MW-30S/D/DA MW-32S/D/BR IB-2S-SL/AL/I/BRU IB-4S-SL/D/BRGWA-3D GWA-5S/BRU GWA-13BR GWA-23D GWA-27D GWA-31BR MW-42D GWA-1BRU U5-5D/BR BG-1S/D/BRA BG-2D AB-6S/D AB-3BRU GWA-33S/D/BR MW-23S/D/DR GWA-44S/D/BR GWA-43S/D GWA-39S FIGURE 6-1CROSS S ECTION L OCAT ION MAPCLIFFSIDE STEAM ST ATIONDUKE EN ERGY CAROLINAS, LLCMOORESBORO, NORTH CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/26/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\CLIFFSIDE_XSectLoc_2018JAN.mxd 400 0 400 800200 GRAP HIC S CALE IN FEET UNIT 5ASH BASIN UNITS 1-4INACTIVE BASIN ASH BASIN BROAD RIVER P IN E H A LL R O A D C LIF F SI D E H I G H WA Y CCPLANDFILL LEGEND !(MONITORING W E LL LOCAT ION !(ABAN D ON ED MON ITO RING WELL LOCATIONASH BASIN WAST E BOUNDARYINACTIVE ASH B ASIN WAST E BOUNDARYLANDFILL BOUNDARYASH STORAGE BOUNDARYPLANT SIT E BOUNDARY NOTES: 1) SAMPL E LOCATION S WERE DERIVED FROM VARIOUS SOURCES AND ARE A MIX OF SURVEY ED AND APPROXIMATE LOCATIONS. THEREFORE, SAMPLE L OCATIONS A RE TO BE DEEMED APPROXIMATE. 2) AERIAL P HOTOGRAPHY OB TAINE D FR OM GOOGLE EARTH PRO AND IS DATED OCTOBER 8, 2016. D U K E P OW E R R O A D !(!( !(!( !( !( !(!( !( !(!(!(!( !(!(!( !(!(!( !( !( !( !(!( !( !( !(!(!( !(!( !(!( !( !( !(!( !( !(!( !(!( !(!( !(!( !(!( !(!( !(!( !( !( !(!( !(!( !( !( !( !( !( !( !( !( !( !( !(!( !(!( !(!(!(!( !(!(!( !(!(!( !(!( !( !(!( !( !( !( !(!( !(!(!( !(!( !(!(!( !( !( !( !(!( !(!( !(!( !(!( !(!(!( !(!(!(!( !(!(!( !( !( !( !(!( !(!( !( !( !(!( !( !( !( !(!( !(!( !(!( !(!( !(!( !( !(!(!( !( !( !(!( !( !( !(!( !(!( !(!(!( !(!(!( !(!( !(!(!( !( !(!(!( !(!(!( !( !(!( !(!( !(!( !(!( !( !( !(!( !(!(!( !( !(!( !(!( !(!( !(!(!( !(!( !( !( !( !(!(!( !(!( !(!(!( !(!( !(!( !(!( !(!( !(!( !(!(!( !(!( !(!( !(!( !(!(!( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !(!(!( !( !( !( !(!(!( !(!( !( !(!( !( !( !( !( !(!( !(!( !( !( !(!( !(!( !( !(!( !( GWA-29 D/BRA GWA-29BR GWA-12S/BRU CLMW-02 MW-0 2DAAS-2 S/D/BR AS-7S/D/BRA AB-7BR CLP-1 AS-5 S/BRU/BR AS-3 BRU AS-6 S/D/BRA AB-1S /D/BRO CLMW-5S/D GWA-28S/BRU/BR MW-25DR MW-11S/D/DA/BRO GWA-21 S/BRU/BR MW-4D CLMW-4 CLP-2 MW-20D/DR GWA-22 S/BRU MW-02D AS-6BR !(AS-8S/D CCR-1S/D !(GWA-54 S/D/BRO CCR-3BR IB-3S/D SEE INSET INS ET1" = 500' B R O A D R I V E R AA'B' B CC'D D 'EE'F' F G G'I I'H'HJJ' K' KL'LMM' AB-6SAB-6DAB-6BRAB-4SAB-4DAB-4BRAB-4SLAB-1SAB-1DGWA-21SGWA-21BRGWA-21BRUGWA-25SGWA-25DCLMW-6SAPROLITE ALLUVIUM FILL TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK BROAD RIVER ASH PORE WATER ASH PORE WATER ASH ASHWATER IN BASIN WATER IN BASIN WATER IN BASIN SAPROLITE A A' (SOUTH)(NORTH) ACTIVE ASH BASIN MW-10DMW-10SCCR-4DSAPROLITE TRANSITION ZONE D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTAA 12/8/2017 01/29/2018 2:35 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_A-M_5xVE.dwg FIGURE 6-2 GENERAL CROSS SECTION A-A' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 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. GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-25D GWA-25S AB-4SL LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION BEDROCK SOURCE INFORMATION: SHALLOW FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON AUGUST 2017. 2.NM - NOT MEASURED DURING 24-HOUR WATER LEVEL EVENT. 3.ELEVATIONS ARE REFERENCES TO THE NORTH AMERICAN VERTICAL DATUM 1988 (NAVD 88) ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. TRANSITION ZONE CAROLINAS ALLUVIUM FILL SAPROLITE768.69'768.66'765.03'764.08'758.13'764.23'761.78'757.37'762.22'762.03'758.07'758.25'733.48'711.24'659.08'670.99'654.5' MW-102S WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER ABANDONED WELL/ GEOTECHNICAL BORING 780.00'WATER LEVEL NMBELOW PUMP GWA-32BRGWA-32DGWA-10DGWA-10SGWA-11SGWA-11BRUIB-3DIB-3SGWA-29DGWA-29BRGWA-21SGWA-21BRGWA-22SB B' (WEST)(EAST) SUCK CREEKSAPROLITE SAPROLITE ALLUVIUM ALLUVIUM ALLUVIUM FILL SAPROLITE TRANSITION ZONE FILL BEDROCK BEDROCK BEDROCK BEDROCK COAL PILE AREA ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN AS-2SAS-2DGWA-21BRUTRANSITION ZONETRANSITION ZONE GWA-29BRAAS-2BRGWA-22BRUD U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTBB 12/8/2017 01/29/2018 2:35 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_A-M_5xVE.dwg FIGURE 6-3 GENERAL CROSS SECTION B-B' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 90 180 360 HORIZONTAL SCALE: 1" = 360' VERTICAL SCALE: 1" = 72' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION B' B NOTE: CROSS SECTION B-B' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. CAROLINAS GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-25D GWA-25S AB-4SL WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION BEDROCK SOURCE INFORMATION: SHALLOW FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON AUGUST 2017. 2.NM - NOT MEASURED DURING 24-HOUR WATER LEVEL EVENT. 3.ELEVATIONS ARE REFERENCES TO THE NORTH AMERICAN VERTICAL DATUM 1988 (NAVD 88) 4 . GROUNDWATER SURFACE ELEVATION AND DEPTHS REPRESENT PRE-EXCAVATION CONDITIONS. GROUNDWATER GAUGED PRE-EXCAVATION ON AUGUST 27, 2015. ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. ABANDONED WELL/ GEOTECHNICAL BORING TRANSITION ZONE ALLUVIUM FILL SAPROLITE666.72'664.96'658.88'658.95'657.33'657.24'661.92'656.13'658.06'665.62'672.19'670.99'659.08'653.38'655.45'MW-102S 780.00'WATER LEVEL DRY671.22 (NOTE 4)660.06 (NOTE 4) IB-4S-SLMW-23DRGWA-33BRGWA-33DGWA-33SGWA-13BRIB-4BRIB-4DGWA-11BRUGWA-11SGWA-43DGWA-44SGWA-44DGWA-44BRGWA-45DGWA-45SUNITS 1-4 INACTIVE ASH BASIN BROAD RIVER C C' (SOUTH)(NORTH) FILL ALLUVIUM TRANSITION ZONE TRANSITION ZONE SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK TRANSITION ZONE SAPROLITE ASH PORE WATER ASHMW-23SMW-23DGWA-43SD U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTCC 12/8/2017 01/29/2018 2:35 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_A-M_5xVE.dwg FIGURE 6-4 GENERAL CROSS SECTION C-C' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 50 100 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATIONC'CNOTE: CROSS SECTION C-C' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. CAROLINAS GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-25D GWA-25S AB-4SL LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION BEDROCK SOURCE INFORMATION: SHALLOW FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. TRANSITION ZONE ALLUVIUM FILL SAPROLITE751.35'760.35'723.59'726.01'732.16'716.14'715.48'715.03'714.80'704.78'715.19'714.60'696.16'657.24'657.33'655.0' MW-102S WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER ABANDONED WELL/ GEOTECHNICAL BORING 780.00'WATER LEVEL NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON AUGUST 2017. 2.NM - NOT MEASURED DURING 24-HOUR WATER LEVEL EVENT. 3.ELEVATIONS ARE REFERENCES TO THE NORTH AMERICAN VERTICAL DATUM 1988 (NAVD 88) 4 . GROUNDWATER SURFACE ELEVATION AND DEPTHS REPRESENT PRE-EXCAVATION CONDITIONS. GROUNDWATER GAUGED PRE-EXCAVATION ON AUGUST 27, 2015.696.65688.30 (NOTE 4)684.03 (NOTE 4)686.63 (NOTE 4) U5-2DU5-2BRU5-2S-SL-AU5-6DU5-6SGWA-4DGWA-4SMW-40SMW-40BRUGWA-1BRUD D' (WEST)(EAST) SAPROLITE SAPROLITE SAPROLITEBEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE FILL FILL ASH ASH PORE WATER ASH PORE WATER UNIT 5 INACTIVE ASH BASIN ASH U5-2S-SLD U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTDD 12/8/2017 01/29/2018 2:35 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_A-M_5xVE.dwg FIGURE 6-5 GENERAL CROSS SECTION D-D' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 60 120 240 HORIZONTAL SCALE: 1" = 240' VERTICAL SCALE: 1" = 48' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION D' D NOTE: CROSS SECTION D-D' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. CAROLINAS GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-25D GWA-25S AB-4SL LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION BEDROCK SHALLOW FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION TRANSITION ZONE ALLUVIUM FILL SAPROLITE 705.56'706.91'767.20'725.49'722.40'731.40'714.09'713.99'703.49'701.64'MW-102S WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER ABANDONED WELL/ GEOTECHNICAL BORING 780.00'WATER LEVEL SOURCE INFORMATION: NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON AUGUST 2017. 2.NM - NOT MEASURED DURING 24-HOUR WATER LEVEL EVENT. 3.ELEVATIONS ARE REFERENCES TO THE NORTH AMERICAN VERTICAL DATUM 1988 (NAVD 88) ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016.NM U5-1DU5-1SU5-4DU5-4SU5-4BRGWA-2BRUGWA-2SE E' (SOUTHWEST)(NORTHEAST) BROAD RIVER SAPROLITE SAPROLITEBEDROCK ASH PORE WATER ASH FILL FILL UNIT 5 INACTIVE ASH BASIN GWA-2BRTRANSITION ZONE TRANSITION ZONEGWA-35SGWA-35DBEDROCK D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTEE 12/8/2017 01/29/2018 2:35 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_A-M_5xVE.dwg FIGURE 6-6 GENERAL CROSS SECTION E-E' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATIONE'ENOTE: CROSS SECTION E-E' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. CAROLINAS GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-25D GWA-25S AB-4SL LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION BEDROCK SHALLOW FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION TRANSITION ZONE ALLUVIUM FILL SAPROLITE 671.01'669.44669.58668.53'668.45'753.20'753.21'698.82'649.17'698.26'MW-102S 655.0' WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER ABANDONED WELL/ GEOTECHNICAL BORING 780.00'WATER LEVEL SOURCE INFORMATION: NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON AUGUST 2017. 2.NM - NOT MEASURED DURING 24-HOUR WATER LEVEL EVENT. 3.ELEVATIONS ARE REFERENCES TO THE NORTH AMERICAN VERTICAL DATUM 1988 (NAVD 88) ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. AS-2SAS-2DAS-6SAS-6DAS-6BRMW-21BRBEDROCK BEDROCK SAPROLITE SAPROLITE SAPROLITE WATER IN BASIN ASH PORE WATER F F' (WEST)(EAST) ASH STORAGE AREA ACTIVE ASH BASIN TRANSITION ZONEAS-2BRMW-21DAS-6BRATRANSITION ZONE SUCK CREEK D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTFF 12/8/2017 01/29/2018 2:35 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_A-M_5xVE.dwg FIGURE 6-7 GENERAL CROSS SECTION F-F' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION F' F NOTE: CROSS SECTION F-F' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. CAROLINAS GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-25D GWA-25S AB-4SL LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION BEDROCK SHALLOW FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP 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 TRANSITION ZONE ALLUVIUM FILL SAPROLITE665.62'672.19'658.07'721.59'764.30'722.09'763.54'769.80'WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER ABANDONED WELL/ GEOTECHNICAL BORING 780.00'WATER LEVEL SOURCE INFORMATION: NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON AUGUST 2017. 2.NM - NOT MEASURED DURING 24-HOUR WATER LEVEL EVENT. 3.ELEVATIONS ARE REFERENCES TO THE NORTH AMERICAN VERTICAL DATUM 1988 (NAVD 88) ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. ~742.00' ~664.00'NM GWA-10SGWA-10DIB-1DIB-1SIB-2IIB-2S-SLIB-2BRUIB-4S-SLIB-4BRIB-4DGWA-12SGWA-12BRUG G' (NORTHWEST)(SOUTHEAST) SAPROLITE SAPROLITE SAPROLITEASH ASH ASH PORE WATER ALLUVIUM FILL TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK FILL UNITS 1-4 INACTIVE ASH BASIN IB-2ALD U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTGG 12/8/2017 01/29/2018 2:36 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_A-M_5xVE.dwg FIGURE 6-8 GENERAL CROSS SECTION G-G' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 40 80 160 HORIZONTAL SCALE: 1" = 160' VERTICAL SCALE: 1" = 32' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION G' G NOTE: CROSS SECTION G-G' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. CAROLINAS GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-25D GWA-25S AB-4SL LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION BEDROCK SHALLOW FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION TRANSITION ZONE ALLUVIUM FILL SAPROLITE658.88'658.95'681.16'690.68'MW-102S WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER ABANDONED WELL/ GEOTECHNICAL BORING 780.00'WATER LEVEL664.52 (NOTE 4)666.20 (NOTE 4)667.22 (NOTE 4)670.53 (NOTE 4)670.73 (NOTE 4)673.01 (NOTE 4)686.63 (NOTE 4)688.30 (NOTE 4)684.03 (NOTE 4)SOURCE INFORMATION: NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON AUGUST 2017. 2.NM - NOT MEASURED DURING 24-HOUR WATER LEVEL EVENT. 3.ELEVATIONS ARE REFERENCES TO THE NORTH AMERICAN VERTICAL DATUM 1988 (NAVD 88) 4 . GROUNDWATER SURFACE ELEVATION AND DEPTHS REPRESENT PRE-EXCAVATION CONDITIONS. GROUNDWATER GAUGED PRE-EXCAVATION ON AUGUST 27, 2015. ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. GWA-38SGWA-38DGWA-14SGWA-14DIB-2IIB-2S-SLIB-2BRUGWA-11SGWA-11BRUBEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE SAPROLITE SAPROLITE ALLUVIUM FILL ASH ASH PORE WATER FILL BROAD RIVER UNITS 1-4 INACTIVE ASH BASIN H H' (SOUTHWEST)(NORTHEAST)GWA-14BRIB-2ALD U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTHH 12/8/2017 01/29/2018 2:36 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_A-M_5xVE.dwg FIGURE 6-9 GENERAL CROSS SECTION H-H' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION H' H NOTE: CROSS SECTION H-H' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. CAROLINAS GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-25D GWA-25S AB-4SL LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION BEDROCK SHALLOW FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION TRANSITION ZONE ALLUVIUM FILL SAPROLITE703.98'NM676.83'NM672.63'657.24'657.33'MW-102S 655.0' WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER ABANDONED WELL/ GEOTECHNICAL BORING 780.00'WATER LEVEL SOURCE INFORMATION: NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON AUGUST 2017. 2.NM - NOT MEASURED DURING 24-HOUR WATER LEVEL EVENT. 3.ELEVATIONS ARE REFERENCES TO THE NORTH AMERICAN VERTICAL DATUM 1988 (NAVD 88) 4 . GROUNDWATER SURFACE ELEVATION AND DEPTHS REPRESENT PRE-EXCAVATION CONDITIONS. GROUNDWATER GAUGED PRE-EXCAVATION ON AUGUST 27, 2015. ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016.670.73 (NOTE 4)675.01 (NOTE 4)670.53 (NOTE 4)667.22 (NOW 4) AS-4SAS-4DAS-7SAS-7DAS-7BRMW-2DACLMW-02I I' (NORTHWEST)(SOUTHEAST) BEDROCK BEDROCK SAPROLITE SAPROLITE TRANSITION ZONE TRANSITION ZONE ALLUVIUM ASH ASH ASH PORE WATER FILL FILL ASH STORAGE AREA AS-7BRAMW-2DD U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTII 12/8/2017 01/29/2018 2:36 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_A-M_5xVE.dwg FIGURE 6-10 GENERAL CROSS SECTION I-I' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION I' I NOTE: CROSS SECTION I-I' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. CAROLINAS GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-25D GWA-25S AB-4SL LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION BEDROCK SHALLOW FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION TRANSITION ZONE ALLUVIUM FILL SAPROLITE 762.22'761.78'688.65'695.62'704.91'709.03'688.41'MW-102S WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER ABANDONED WELL/ GEOTECHNICAL BORING 780.00'WATER LEVEL 693.40SOURCE INFORMATION: NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON AUGUST 2017. 2.NM - NOT MEASURED DURING 24-HOUR WATER LEVEL EVENT. 3.ELEVATIONS ARE REFERENCES TO THE NORTH AMERICAN VERTICAL DATUM 1988 (NAVD 88) ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. CLMW-1AS-1SBAS-1DAS-7SAS-7DAS-7BRAS-2SAS-2DSAPROLITE SAPROLITE ASH PORE WATER ASH ASH ASH FILL FILL FILL TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK J J' (SOUTH)(NORTH) ASH STORAGE AREA AS-2BRAS-7BRABROAD RIVER D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTJJ 12/8/2017 01/29/2018 2:36 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_A-M_5xVE.dwg FIGURE 6-11 GENERAL CROSS SECTION J-J' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATIONJ'JNOTE: CROSS SECTION J-J' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. CAROLINAS GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-25D GWA-25S AB-4SL LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION BEDROCK SHALLOW FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION TRANSITION ZONE ALLUVIUM FILL SAPROLITE 750.80'728.47'729.65'688.65'704.91'709.03'658.07'665.62'672.19'695.62'MW-102S WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER ABANDONED WELL/ GEOTECHNICAL BORING 780.00'WATER LEVEL SOURCE INFORMATION: NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON AUGUST 2017. 2.NM - NOT MEASURED DURING 24-HOUR WATER LEVEL EVENT. 3.ELEVATIONS ARE REFERENCES TO THE NORTH AMERICAN VERTICAL DATUM 1988 (NAVD 88) ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. ~656.00 GWA-39SGWA-20SGWA-20DAB-2SAB-2DAB-3SAB-3BRUAB-3BRAB-3IAB-3SLAB-4SAB-4BRAB-4SLAB-4DGWA-24SGWA-24DGWA-24BRASH PORE WATER ASH ASH ASH PORE WATER ASH PORE WATER ASH FILL SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE ACTIVE ASH BASIN K K' (WEST) (EAST) FILL FILL FILL GWA-20BRSUCK CREEK AB-3BRUAAB-3SLAAB-2BRO(UNKNOWN CONSTRUCTION)D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTKK 12/8/2017 01/29/2018 2:36 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_A-M_5xVE.dwg FIGURE 6-12 GENERAL CROSS SECTION K-K' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 60 120 240 HORIZONTAL SCALE: 1" = 240' VERTICAL SCALE: 1" = 48' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION K' K NOTE: CROSS SECTION K-K' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. CAROLINAS GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-25D GWA-25S AB-4SL LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION BEDROCK SHALLOW FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION TRANSITION ZONE ALLUVIUM FILL SAPROLITE719.30723.00'727.10'727.54742.59'743.24'684.50'761.18'762.77'762.64'762.22'762.03'757.37'761.78'774.70'773.23'MW-102S 758.43'WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER ABANDONED WELL/ GEOTECHNICAL BORING 780.00'WATER LEVELNM NMNMDRYSOURCE INFORMATION: NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON AUGUST 2017. 2.NM - NOT MEASURED DURING 24-HOUR WATER LEVEL EVENT. 3.ELEVATIONS ARE REFERENCES TO THE NORTH AMERICAN VERTICAL DATUM 1988 (NAVD 88) ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016. U5-8SU5-8BRU5-7DU5-7SLU5-7SU5-5DGWA-3DGWA-37DGWA-37SL L' (SOUTH)(NORTH) SAPROLITE SAPROLITE SAPROLITE ASH PORE WATER ASH ASH FILL FILL FILL FILL BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE UNIT 5 INACTIVE ASH BASIN U5-8DU5-5BRCCR-U5-5DBROAD RIVER D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTLL 12/8/2017 01/29/2018 2:36 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_A-M_5xVE.dwg FIGURE 6-13 GENERAL CROSS SECTION L-L' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION L-L' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. CAROLINAS GENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-25D GWA-25S AB-4SL LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION BEDROCK SHALLOW FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION TRANSITION ZONE ALLUVIUM FILL SAPROLITELL'760.54'761.82'760.40'698.75'703.79'695.82'668.26'672.01'MW-102S WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER ABANDONED WELL/ GEOTECHNICAL BORING 780.00'WATER LEVEL SOURCE INFORMATION: NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON AUGUST 2017. 2.NM - NOT MEASURED DURING 24-HOUR WATER LEVEL EVENT. 3.ELEVATIONS ARE REFERENCES TO THE NORTH AMERICAN VERTICAL DATUM 1988 (NAVD 88) 4 . GROUNDWATER SURFACE ELEVATION AND DEPTHS REPRESENT PRE-EXCAVATION CONDITIONS. GROUNDWATER GAUGED PRE-EXCAVATION ON AUGUST 27, 2015. ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016.736.63 (NOTE 4)735.20 (NOTE 4)737.73 (NOTE 4)NM~666.00' U5-1DU5-1SU5-2DU5-2SLU5-2BRU5-3DFILL FILL ASH ASH PORE WATER TRANSITION ZONE TRANSITION ZONE SAPROLITE BEDROCK BEDROCK SAPROLITE UNIT 5 INACTIVE ASH BASIN M M' (SOUTHWEST)(NORTHEAST)GWA-35DGWA-35SU5-2SLABROAD RIVER D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTMM 12/8/2017 01/29/2018 2:36 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_A-M_5xVE.dwg FIGURE 6-14 GENERAL CROSS SECTION M-M' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION M-M' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. CAROLINASM'MGENERALIZED WATER TABLE ASH ASH PORE WATER GWA-21BR GWA-25D GWA-25S AB-4SL LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION BEDROCK SHALLOW FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION DEEP FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION BEDROCK FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION ASH FLOW LAYER GROUNDWATER WELL WATER LEVEL ELEVATION TRANSITION ZONE ALLUVIUM FILL SAPROLITE753.21'753.20'731.40'NM725.49'722.40'668.45'668.53'MW-102S 780.00'WATER LEVEL WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER ABANDONED WELL/ GEOTECHNICAL BORING SOURCE INFORMATION: NOTES 1.DEPTH TO GROUNDWATER GAUGED IN MONITORING WELLS ON AUGUST 2017. 2.NM - NOT MEASURED DURING 24-HOUR WATER LEVEL EVENT. 3.ELEVATIONS ARE REFERENCES TO THE NORTH AMERICAN VERTICAL DATUM 1988 (NAVD 88) ORIGINAL CROSS SECTION BASE OBTAINED FROM HDR, CSA SUPPLEMENT 2, DATED AUGUST 2016.NM~666.00' &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &<&< &< &< &< &< &< &< &<&<&< &< &< &< &<&< &<&< &< &< &< &< &<&< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &<&<&<&< AB-3S762.52GWA-42SNM GWA-39SNM GWA-40SNM GWA-20S727.72 MW-8S729.87 AB-2S743.48 ASH BASIN UNIT 5INACTIVEASH BASIN UNITS 1-4INACTIVEASH BASIN B R O A D R I V E R SUCK CREEK CCP LANDFILL ASHSTORAGE AB-1S733.57 AB-3I762.60AB-3SL762.56 AB-4S761.69 AB-4SL762.02 AB-5S763.7 AB-6S763.74 AS-2S672.14 AS-4S738.91 AS-5S701.64 AS-6S721.76AS-7S709.39 BG-1S774.12 GWA-10S660.75 GWA-11S660.19 GWA-12S691.2 GWA-14S685.79 GWA-21S658.08 GWA-22S655.46 GWA-24S772.32 GWA-25S768.31 GWA-26S762.78 GWA-28S719.44GWA-2S671.3 GWA-30S781.28 GWA-33S715.48 GWA-34SNM GWA-35SNM GWA-36SNM GWA-37SNM GWA-38SNM GWA-43SNM GWA-44SNM GWA-45SNM GWA-4S706.68 GWA-5S754.69 GWA-6S769.01 IB-1S*666.2 IB-2AL*667.22 IB-2I*670.53 IB-2SL*670.73 IB-3S*671.22 IB-4SL*684.03 MW-23SNM MW-34S720.61 U5-1S754.99 U5-2SL*NM U5-2SLA735.12 U5-3S*NM U5-3SA*715.73 U5-4S698.73 U5-6S713.93 U5-7S*737.93 U5-7SL*736.63 U5-8S761.89 MW-30S790.60 MW-32S806.69 MW-36S664.54 MW-38S666.28 MW-40S701.13 MW-42S773.47 AS-1SBNM CCPMW -1SNM CLMW -1751.02 CLMW -2688.83 CLMW-3D726.31 CLMW-3S726.35 CLMW-4*654.93 CLMW-5S736.35 CLMW -6764.71 MW-10S758.09 MW-11S737.48 CLMW-5DNM CCPMW -2SNM CCPMW -3SNM CCPMW -6SNM CCPTW -1SNM CCPTW -2NM CLP-1NM CLP-2NM CLP-3NM CLP-4NM WESTONDRCO UNTRY MIST DR B O JONES RD B A L L E N G E R R D WATERLOO RDH IN E S R DCOBB RDUS HWY 221 ALTDUKE POWER RD OLD US HWY 221A7707 7 0 800 790 780 750 740 660 760 770760 7 5 0740 680 670 690 700 730 720 7 1 0 FIGURE 6-15SHALLOW WATER LEVEL MAP -AUGUST 27, 2015DUKE ENERGY CAROLINAS, LLCCLIFFSIDE STEAM STATIONMOORESBORO, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: S. SPINNERCHECKED BY: M .YOUNGBLOOD 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\Cliffside\Mapdocs\CSA_Supplement_2\Fig06-15 Shallow Water Level - August 2015_v2.mxd 425 0 425 850212.5 GRAPHIC SCALE IN FEET NOTES: NM - NOT MEASURED DURING 24-HOUR W ATER LEVEL EVENT. * INDICATES ABANDONED W ELL. NATURAL RESOURCES TECHNICAL REPORT (NRTR) PREPARED BY AMEC FOSTERWHEELER, INC., JUNE 19, 2015 ELEVATIONS ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM 88(NAVD 88). AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON SEPTEMBER 26,2017. IMAGE COLLECTED ON APRIL 1, 2017. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND &< MONITORING WELL IN ASH PORE W ATERELEVATION IN FEET (NAVD 88) &< MONITORING W ELLELEVATION IN FEET (NAVD 88) &< BACKGROUND MONITORING W ELLELEVATION IN FEET (NAVD 88) WATER SUPPLY W ELL WATER LEVEL CONTOUR IN FEET (NAVD 88) INFERRED WATER LEVEL CONTOUR IN FEET (NAVD 88) <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) GROUNDWATER FLOW DIRECTION ASH BASIN WASTE BOUNDARY DUKE ENERGY CAROLINAS CLIFFSIDE PLANTSITE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY LANDFILL / ASH STORAGE AREA BOUNDARY &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &<&< &< &< &< &< &< &< &<&<&< &< &< &< &<&< &<&< &< &< &< &< &<&< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &<&<&<&< GWA-42S715.76 GWA-40S717.25 GWA-39S719.26 MW-8S729.98 GWA-20S726.87 AB-2S742.55 ASH BASIN UNIT 5INACTIVEASH BASIN UNITS 1-4INACTIVEASH BASIN B R O A D R I V E R SUCK CREEK CCP LANDFILL ASHSTORAGE AB-1S733.47 AB-3I761.03 AB-3S762.01 AB-3SL761.98 AB-4S761.72 AB-4SL761.93 AB-5S763.80 AB-6S764.25 AS-2S672.27 AS-4S742.71 AS-5S701.51 AS-6S721.93AS-7S708.72 BG-1S774.30 GWA-10S659.77 GWA-11S658.18 GWA-12S680.50 GWA-14S679.42 GWA-21S660.81 GWA-22S656.68 GWA-24SBELOW PUMP GWA-25S768.90 GWA-26S763.11 GWA-28S719.79GWA-2S671.06 GWA-30S781.05 GWA-33S717.03 GWA-34S702.01 GWA-35S668.60 GWA-36S700.55 GWA-37S668.17 GWA-38S706.46 GWA-43S716.53 GWA-44S723.26 GWA-45S760.19 GWA-4S707.27 GWA-5S755.32 GWA-6S768.44 IB-1S*NM IB-2AL*NM IB-2I*NM IB-2SL*NM IB-3S*667.80 IB-4SL*NM MW-23S716.86 MW-34S720.56 U5-1S753.49 U5-2SL*NM U5-2SLA731.27 U5-3S*NM U5-3SA*NM U5-4S698.59 U5-6S713.93 U5-7S*NM U5-7SL*NM U5-8S763.33 MW-30S789.69 MW-32SBELOW PUMP MW-36S666.14 MW-38S667.02 MW-40S702.16 MW-42S772.57 AS-1SB729.40 CLMW -1750.37 CLMW -2688.42 CLMW-3S725.52 CLMW-4*NM CLMW-5S736.57 CLMW -6746.75 MW-10S758.15 MW-11S742.83 CLMW-5DNM CCPMW -2SNM CCPMW -3SNM CCPMW -6SNM CCPTW -1SNM CCPTW -2NM CLP-1NM CLP-2NM CLP-3NMCLP-4NM CCPMW -1SNM CLMW-3D726.31 WESTONDRCO UNTRY MIST DR B O JONES RD B A L L E N G E R R D WATERLOO RDH IN E S R DCOBB RDUS HWY 221 ALTDUKE POWER RD OLD US HWY 221A7 7 0 7 9 0 780 750 740 660 7 6 0 770760 740750670 6 8 0 6 9 0 710 7 0 0 730 720 FIGURE 6-16SHALLOW WATER LEVEL MAP -FEBRUARY 10, 2017DUKE ENERGY CAROLINAS, LLCCLIFFSIDE STEAM STATIONMOORESBORO, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: S. SPINNERCHECKED BY: M .YOUNGBLOOD 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\Cliffside\Mapdocs\CSA_Supplement_2\Fig06-16 Shallow Water Level - February 2017_v2.mxd 425 0 425 850212.5 GRAPHIC SCALE IN FEET NOTES: NM - NOT MEASURED DURING 24-HOUR W ATER LEVEL EVENT. * INDICATES ABANDONED W ELL. NATURAL RESOURCES TECHNICAL REPORT (NRTR) PREPARED BY AMEC FOSTERWHEELER, INC., JUNE 19, 2015 ELEVATIONS ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM 88(NAVD 88). AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON SEPTEMBER 26,2017. IMAGE COLLECTED ON APRIL 1, 2017. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND &< MONITORING WELL IN ASH PORE W ATERELEVATION IN FEET (NAVD 88) &< MONITORING W ELLELEVATION IN FEET (NAVD 88) &< BACKGROUND MONITORING W ELLELEVATION IN FEET (NAVD 88) WATER SUPPLY W ELL WATER LEVEL CONTOUR IN FEET (NAVD 88) INFERRED WATER LEVEL CONTOUR IN FEET (NAVD 88) <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) GROUNDWATER FLOW DIRECTION ASH BASIN WASTE BOUNDARY DUKE ENERGY CAROLINAS CLIFFSIDE PLANTSITE BOUNDARY LANDFILL / ASH STORAGE AREA BOUNDARY ASH BASIN COMPLIANCE BOUNDARY &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &<&< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &< &< ASH BASIN SUCK CREEK MW-8D726.83 GWA-20D722.78 AB-2D733.00 UNIT 5INACTIVEASH BASIN UNITS 1-4INACTIVEASH BASIN B R O A D R I V E R CCP LANDFILL ASHSTORAGE CLMW-4*654.93 GWA-11S AB-1D710.85 AB-3BRU*762.56 AB-4D762.22 AB-5BRU763.97 AB-6D763.83 AS-1D729.26 AS-2D665.27 AS-3BRU704.26 AS-4D744.74 AS-5BRU699.15 AS-6D722 AS-7D704.65 BG-1D774.17 BG-2D797.6 GWA-10D661.29 GWA-11BRU660.44 GWA-12BRU683.1 GWA-14D685.44 GWA-1BRU767.18 GWA-21BRU658.08 GWA-22DNM GWA-23D761.35 GWA-24D774.54 GWA-25D768.34 GWA-26D762.4 GWA-27DA755.96 GWA-28BRU715.24 GWA-29D655.10 GWA-2BRU669.61 GWA-30DNM GWA-31D741.11 GWA-32D664.68 GWA-33D715.07 GWA-35DNM GWA-36DNM GWA-37DNM GWA-38DNM GWA-3D695.75 GWA-43DNM GWA-44DNM GWA-45DNM GWA-46DNM GWA-47DNM GWA-4D705.53 GWA-5BRU753.38 GWA-6D768.75 IB-1D*664.52 IB-2BRU*675.01 IB-3D*660.06 IB-4D*686.63 U5-1D754.59 U5-2D725.62 U5-3D*713.90 U5-4D691.89 U5-5DNM U5-6D714.05 U5-7D*735.20 U5-8D760.39 MW-30D789.46 MW-32D809.35 MW-34BRU720.45 MW-36BRU664.31 MW-38D667.36 MW-40BRU703.56 MW-42D*773.53 GWA-22BRU652.21 GWA-30BRU778.29 AB-3BRUANM GWA-27D*NM MW-42DANM MW-24D794.89 MW-20D658.03 MW-21D770.36 MW-23D715.81 MW-2DANM MW-10D758.25 MW-11D720.55MW-2D*NM MW-4D655.77 CCPMW -2DNM CCPMW -3DNM CCPTW -1DNM MW-7DNM WESTONDRCO UNTRY MIST DR B O JONES RD B A L L E N G E R R D WATERLOO RDH IN E S R DCOBB RDUS HWY 221 ALTDUKE POWER RD OLD US HWY 221A780 800 780660 760 760680 700 720 7 4 0 FIGURE 6-17DEEP WATER LEVEL MAP -AUGUST 27, 2015DUKE ENERGY CAROLINAS, LLCCLIFFSIDE STEAM STATIONMOORESBORO, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: S. SPINNERCHECKED BY: M .YOUNGBLOOD 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\Cliffside\Mapdocs\CSA_Supplement_2\Fig06-17 Deep Water Level - August 2015_v2.mxd 425 0 425 850212.5 GRAPHIC SCALE IN FEET NOTES:NM - NOT MEASURED DURING 24-HOUR W ATER LEVEL EVENT. * INDICATES ABANDONED W ELL. NATURAL RESOURCES TECHNICAL REPORT (NRTR) PREPARED BY AMEC FOSTERWHEELER, INC., JUNE 19, 2015 ELEVATIONS ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM 88(NAVD 88). AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON SEPTEMBER 26,2017. IMAGE COLLECTED ON APRIL 1, 2017. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND &< MONITORING WELL IN ASH PORE W ATERELEVATION IN FEET (NAVD 88) &< MONITORING W ELLELEVATION IN FEET (NAVD 88) &<BACKGROUND MONITORING W ELLELEVATION IN FEET (NAVD 88) WATER SUPPLY W ELL WATER LEVEL CONTOUR IN FEET (NAVD 88) INFERRED WATER LEVEL CONTOUR IN FEET (NAVD 88) <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) GROUNDWATER FLOW DIRECTION ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY LANDFILL / ASH STORAGE AREA BOUNDARY DUKE ENERGY CAROLINAS CLIFFSIDE PLANTSITE BOUNDARY &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &<&< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &< &< ASH BASIN MW-8D726.03 GWA-20D723.11 AB-2D731.34 UNIT 5INACTIVEASH BASIN UNITS 1-4INACTIVEASH BASIN B R O A D R I V E R SUCK CREEK CCP LANDFILL ASHSTORAGE CLMW-4*NM AB-1D712.04 AB-3BRU*761.97 AB-4D762.11 AB-5BRU764.30 AB-6D764.60 AS-1D728.20 AS-2D665.85 AS-3BRU704.18 AS-4D744.67 AS-5BRU693.77 AS-6D721.74 AS-7D704.97 BG-1D774.58 BG-2D795.05 GWA-10D659.84 GWA-11BRU657.99 GWA-12BRU681.48 GWA-14D678.71 GWA-1BRU765.58 GWA-21BRU659.56 GWA-22DNM GWA-23D761.25 GWA-24D772.72 GWA-25D768.98 GWA-26D763.62 GWA-27DA755.48 GWA-28BRU715.84 GWA-29D655.50 GWA-2BRU669.56 GWA-31D737.41 GWA-32D665.15 GWA-33D716.38 GWA-35D668.50 GWA-36D702.15 GWA-37D672.19 GWA-38D704.20 GWA-3D696.38 GWA-43D706.23 GWA-44D724.04 GWA-45D751.47 GWA-46DNM GWA-47D754.83 GWA-4D706.31 GWA-5BRU753.72 GWA-6D768.25 IB-1D*NM IB-2BRU*NM IB-3D*659.36 IB-4D*NM U5-1D753.33 U5-2D731.43 U5-3D*NM U5-4D700.20 U5-5D703.83 U5-6D714.39 U5-7D*NM U5-8D761.37 MW-30D788.90 MW-32D805.20 MW-34BRU717.85 MW-36BRU665.05 MW-38D667.91 MW-40BRU703.95 MW-42D*772.11 GWA-22BRU652.79 GWA-30BRU778.70 AB-3BRUANM GWA-27D*NM MW-42DANM MW-24D794.92 MW-20D657.88 MW-21D769.80 MW-23D716.26 MW-2DA693.32 MW-10D757.33 MW-11D721.96 MW-4DNM CCPMW -2DNM CCPMW -3DNM CCPTW -1DNM MW-7DNM GWA-30DNM MW-2D*NM WESTONDRCO UNTRY MIST DR B O JONES RD B A L L E N G E R R D WATERLOO RDH IN E S R DCOBB RDUS HWY 221 ALTDUKE POWER RD OLD US HWY 221A780800 78 0 660 680 700 720 740 760 FIGURE 6-18DEEP WATER LEVEL MAP -FEBRUARY 10, 2017DUKE ENERGY CAROLINAS, LLCCLIFFSIDE STEAM STATIONMOORESBORO, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: S. SPINNERCHECKED BY: M .YOUNGBLOOD 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\Cliffside\Mapdocs\CSA_Supplement_2\Fig06-18 Deep Water Level - February 2017_v2.mxd 425 0 425 850212.5 GRAPHIC SCALE IN FEET NOTES:NM - NOT MEASURED DURING 24-HOUR W ATER LEVEL EVENT. * INDICATES ABANDONED W ELL. NATURAL RESOURCES TECHNICAL REPORT (NRTR) PREPARED BY AMEC FOSTERWHEELER, INC., JUNE 19, 2015 ELEVATIONS ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM 88(NAVD 88). AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON SEPTEMBER 26,2017. IMAGE COLLECTED ON APRIL 1, 2017. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND &< MONITORING WELL IN ASH PORE W ATERELEVATION IN FEET (NAVD 88) &< MONITORING W ELLELEVATION IN FEET (NAVD 88) &<BACKGROUND MONITORING W ELLELEVATION IN FEET (NAVD 88) WATER SUPPLY W ELL WATER LEVEL CONTOUR IN FEET (NAVD 88) INFERRED WATER LEVEL CONTOUR IN FEET (NAVD 88) <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) GROUNDWATER FLOW DIRECTION ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY LANDFILL / ASH STORAGE AREA BOUNDARY DUKE ENERGY CAROLINAS CLIFFSIDE PLANTSITE BOUNDARY &< &< &< &< &< &< &<&< &< &< &< &< &< &<&< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< ASH BASINGWA-20BRNMUNIT 5INACTIVEASH BASIN UNITS 1-4INACTIVEASH BASIN B R O A D R I V E R SUCK CREEK CCP LANDFILL ASHSTORAGE CCPMW -1DNM AS-7S AB-3BRNM AB-4BR757.86 AB-5BRNM AB-6BR758.70 AS-2BRNM AS-5BR702.8 AS-6BR*729.61 AS-7BR*NM BG-1BR*773.96 GWA-13BR704.82 GWA-14BRNM GWA-21BR670.25 GWA-24BRNMGWA-27BRNM GWA-28BR709.73 GWA-29BR*650.28 GWA-2BRNM GWA-30BR770.95 GWA-31BR*705.92 GWA-31BRANM GWA-32BR666.83 GWA-33BR705.23 GWA-44BRNM IB-4BR*688.3 MW-21BR764.51 MW-22BR779.24 MW-38BRNM U5-2BRNM U5-4BRNM U5-5BRNM U5-8BRNM MW-32BR808.64 AS-6BRANM AS-7BRANM BG-1BRANM GWA-29BRANM GWA-48BRNM U5-4BRANM MW-24DR799.39 MW-20DRNM MW-22DR781.17 MW-23DR716.96 MW-25DR654.32 MW-2D-A693.74 CCPMW -4NM CCPMW -5NM CCPMW -6DNM CO UNTRY MIST DR B O JONES RD B A L L E N G E R R D WATERLOO RDH IN E S R DCOBB RDUS HWY 221 ALTDUKE POWER RD OLD US HWY 221A800 760 680 760720 FIGURE 6-19BEDROCK WATER LEVEL MAP -AUGUST 27, 2015DUKE ENERGY CAROLINAS, LLCCLIFFSIDE STEAM STATIONMOORESBORO, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: S. SPINNERCHECKED BY: M .YOUNGBLOOD 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\Cliffside\Mapdocs\CSA_Supplement_2\Fig06-19 Bedrock Water Level - August 2015_v2.mxd 425 0 425 850212.5 GRAPHIC SCALE IN FEET LEGEND &< MONITORING WELL IN ASH PORE W ATERELEVATION IN FEET (NAVD 88) &< MONITORING W ELLELEVATION IN FEET (NAVD 88) &< BACKGROUND MONITORING W ELLELEVATION IN FEET (NAVD 88) WATER SUPPLY W ELL WATER LEVEL CONTOUR IN FEET (NAVD 88) INFERRED WATER LEVEL CONTOUR IN FEET (NAVD 88) <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) GROUNDWATER FLOW DIRECTION ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY LANDFILL / ASH STORAGE AREA BOUNDARY DUKE ENERGY CAROLINAS CLIFFSIDE PLANTSITE BOUNDARY NOTES:NM - NOT MEASURED DURING 24-HOUR W ATER LEVEL EVENT. * INDICATES ABANDONED W ELL. NATURAL RESOURCES TECHNICAL REPORT (NRTR) PREPARED BY AMEC FOSTERWHEELER, INC., JUNE 19, 2015 ELEVATIONS ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM 88(NAVD 88). AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON SEPTEMBER 26,2017. IMAGE COLLECTED ON APRIL 1, 2017. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). &< &< &< &< &< &< &<&< &< &< &< &< &< &<&< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< ASH BASIN GWA-20BR727.12 UNIT 5INACTIVEASH BASIN UNITS 1-4INACTIVEASH BASIN B R O A D R I V E R SUCK CREEK CCP LANDFILL ASHSTORAGE CCPMW -1DNM AB-3BR675.12 AB-4BR757.33 AB-5BRNM AB-6BR758.70 AS-2BR657.44 AS-5BR702.28 AS-6BR*728.54 AS-7BR*696.85 BG-1BR*774.41 GWA-13BR698.83 GWA-14BR678.85 GWA-21BR670.40 GWA-24BR773.63GWA-27BR756.84 GWA-28BR710.51 GWA-29BR*657.42 GWA-2BR669.61 GWA-30BR771.69 GWA-31BR*NM GWA-31BRA710.41 GWA-32BR667.31 GWA-33BR699.50 GWA-44BR731.71 IB-4BR*NM MW-21BR763.73 MW-22BR777.15 MW-38BR666.02 U5-2BR722.23 U5-4BR658.81 U5-5BR698.06 U5-8BR761.28 MW-32BR805.56 AS-6BRANM AS-7BRANM BG-1BRANM GWA-29BRANM GWA-48BR771.86 U5-4BRANM MW-24DR798.64 MW-20DR665.38 MW-22DR776.48 MW-23DR716.90 MW-25DR654.99 MW-2D-A693.32 CCPMW -4NM CCPMW -5NM CCPMW -6DNM CO UNTRY MIST DR B O JONES RD B A L L E N G E R R D WATERLOO RDH IN E S R DCOBB RDUS HWY 221 ALTDUKE POWER RD OLD US HWY 221A800 780 760 760680 720 FIGURE 6-20BEDROCK WATER LEVEL MAP -FEBRUARY 10, 2017DUKE ENERGY CAROLINAS, LLCCLIFFSIDE STEAM STATIONMOORESBORO, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: S. SPINNERCHECKED BY: M .YOUNGBLOOD 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\Cliffside\Mapdocs\CSA_Supplement_2\Fig06-20 Bedrock Water Level - February 2017_v2.mxd 425 0 425 850212.5 GRAPHIC SCALE IN FEET NOTES:NM - NOT MEASURED DURING 24-HOUR W ATER LEVEL EVENT. * INDICATES ABANDONED W ELL. NATURAL RESOURCES TECHNICAL REPORT (NRTR) PREPARED BY AMEC FOSTERWHEELER, INC., JUNE 19, 2015 ELEVATIONS ARE REFERENCED TO THE NORTH AMERICAN VERTICAL DATUM 88(NAVD 88). AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON SEPTEMBER 26,2017. IMAGE COLLECTED ON APRIL 1, 2017. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND &< MONITORING WELL IN ASH PORE W ATERELEVATION IN FEET (NAVD 88) &< MONITORING W ELLELEVATION IN FEET (NAVD 88) &< BACKGROUND MONITORING W ELLELEVATION IN FEET (NAVD 88) WATER SUPPLY W ELL WATER LEVEL CONTOUR IN FEET (NAVD 88) INFERRED WATER LEVEL CONTOUR IN FEET (NAVD 88) <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) GROUNDWATER FLOW DIRECTION ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY LANDFILL / ASH STORAGE AREA BOUNDARY DUKE ENERGY CAROLINAS CLIFFSIDE PLANTSITE BOUNDARY <<<<<<<<<<<<<<<<<<<<<<<<<<<<<< <<< <<<<<<<< < &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<BROAD RI V E RSUCK CREEK AB-04D to AB-04BR 0.098 AB-05BRU to AB-05BR 0.05 AB-06D to AB-06BR 0.195 AS-05BRU to AS-05BR 2.768 GWA-21BRU to GWA-21BR -0.294 GWA-24D to GWA-24BR -0.048 GWA-28BRU to GWA-28BR 0.165 GWA-31D to GWA-31BRA 0.108 GWA-32D to GWA-32BR -0.068 GWA-33D to GWA-33BR 0.305 GWA-44D to GWA-44BR -0.255 U5-02D to U5-02BR 0.123 U5-08D to U5-08BR -0.003 MW-21D to MW-21BR 0.09 MW-22DR to MW-22BR -0.012 MW-23DR to MW-23D 0.015 MW-24DR to MW-24D -0.112 MW-32D to MW-32BR -0.044 U5-04BRA to U5-04BR 2.41 UNITS 1-4 INACTIVE ASH BASIN ACTIVE ASH BASIN UNIT 5 INACTIVE ASH BASIN CCP LANDFILL ASH STORAGE RIVER FRONT D RMCCOMBS RDFOX PL PRO SPEC T CH U R C H RDWOOD RDPR O SPEC T C H U R C H R D M C C R A W R DCAMEO DRW ESTO N D R WATERLOO RDCHESTERFIELD RD DUKE POWER RD<<<<<<<<<<<<<<<<<<<<<<<<<< <<< <<<<<<<< <&< &< &< &<&< &< &< &< &<&< &< &< &< &< &< &< &<&< &< &< &< &< &< &< &<&< &< &< &< &< &<&< &< &< &< &< &<&< &< &< &< &< &< &< &< B R O A D RIV E R SUCK CREEK AS-02S to AS-02D 0.186 AS-04S to AS-04D -0.274 AS-05S to AS-05BRU 0.094 AS-06S to AS-06D 0.005 AS-07S to AS-07D 0.085 BG-01S to BG-01D -0.004 GWA-10S to GWA-10D -0.002 GWA-11S to GWA-11BRU 0.005 GWA-12S to GWA-12BRU 0.399 GWA-14S to GWA-14D -0.201 GWA-20S to GWA-20D 0.265 GWA-22S to GWA-22BRU 0.149 GWA-25S to GWA-25D -0.001 GWA-26S to GWA-26D -0.013 GWA-28S to GWA-28BRU 0.154 GWA-33S to GWA-33D 0.032 GWA-35S to GWA-35D 0.002 GWA-36S to GWA-36D 0.026 GWA-37S to GWA-37D -0.075 GWA-38S to GWA-38D 0.187 GWA-43S to GWA-43D 0.318 GWA-44S to GWA-44D -0.084 GWA-45S to GWA-45D 0.245 GWA-04S to GWA-04D 0.062 GWA-05S to GWA-05BRU 0.083 GWA-06S to GWA-06D 0.055 MW-23S to MW-23DR 0.021 MW-34S to MW-34BRU 0.003 U5-01S to U5-01D 0.001 U5-02S/SL to U5-02D 0.296 U5-04S to U5-04D 0.014 U5-06S to U5-06D -0.007 U5-08S to U5-08D 0.023 MW-20DR to MW-20D -0.32 MW-23DR to MW-23D 0.015 MW-30S to MW-30D 0.017 MW-36S to MW-36BRU 0.027 MW-38S to MW-38D -0.032 MW-40S to MW-40BRU -0.082 CLMW-03S to CLMW-03D 0.001 CLMW-05S to CLMW-05D 0.64 MW-10S to MW-10D -0.018 MW-11S to MW-11D 0.911 MW-08S to MW-08D 0.192 AS-01S to AS-01D 0.067 UNITS 1-4 INACTIVE ASH BASIN ACTIVE ASH BASIN UNIT 5 INACTIVE ASH BASIN CCP LANDFILL ASH STORAGE FOX PL PRO SPECT CHURCH RDPRO SPEC T CH UR C H R D WOOD RDM C C R A W R DWESTON DRB O J O N E S R D WATERLOO RDOLD US HWY 221AK IR B Y R DDUKE P OWE R RDNOTES: WATER LEVELS WERE COLLECTED AUGUST, 2017. SURFACE/CONTOUR DATA TRUNCATED AT EXTENT OF SAMPLING DATA. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON SEPTEMBER 27, 2017. AERIAL WAS COLLECTED ON JUNE13, 2016. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 6-23 POTENTIAL VERTICAL GRADIENT BETWEEN SHALLOW, DEEP, AND BEDROCK ZONES CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINADRAWN BY: B. YOUNG PROJECT MANAGER: S. SPINNER CHECKED BY: M. YOUNGBLOOD DATE: 01/23/2018 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\Cliffside\Mapdocs\CSA_Supplement_2\Fig06-23 Cliffside - Potential Vertical Gradient.mxd 600 0 600 1,200300 GRAPHIC SCALE IN FEET &<MONITORING WELL WATER SUPPLY WELL ASH BASIN BOUNDARY LANDFILL / ASH STORAGE AREA BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY CAROLINAS CLIFFSIDE PLANT SITE BOUNDARY <STREAM (AMEC NRTR 2015) LEGEND POTENTIAL VERTICAL GRADIENT UPWARD: -0.320 (foot per foot) DOWNWARD: 2.77 (foot per foot) 0 POTENTIAL VERTICAL GRADIENT UPWARD: -0.320 (foot per foot) DOWNWARD: 2.77 (foot per foot) 0 POTENTIAL VERTICAL GRADIENT (foot per foot)1 Well ID Potential Vertical Gradient Direction AS-01S to AS-01D 0.067 Downward AS-02S to AS-02D 0.186 Downward AS-04S to AS-04D -0.274 Upward AS-05S to AS-05BRU 0.094 Downward AS-06S to AS-06D 0.005 Downward AS-07S to AS-07D 0.085 Downward BG-01S to BG-01D -0.004 Upward CLMW-03S to CLMW-03D 0.001 Downward CLMW-05S to CLMW-05D 0.640 Downward GWA-04S to GWA-04D 0.062 Downward GWA-05S to GWA-05BRU 0.083 Downward GWA-06S to GWA-06D 0.055 Downward GWA-10S to GWA-10D -0.002 Upward GWA-11S to GWA-11BRU 0.005 Downward GWA-12S to GWA-12BRU 0.399 Downward GWA-14S to GWA-14D -0.201 Upward GWA-20S to GWA-20D 0.265 Downward GWA-22S to GWA-22BRU 0.149 Downward GWA-25S to GWA-25D -0.001 Upward GWA-26S to GWA-26D -0.013 Upward GWA-28S to GWA-28BRU 0.154 Downward GWA-33S to GWA-33D 0.032 Downward GWA-35S to GWA-35D 0.002 Downward GWA-36S to GWA-36D 0.026 Downward GWA-37S to GWA-37D -0.075 Upward GWA-38S to GWA-38D 0.187 Downward GWA-43S to GWA-43D 0.318 Downward GWA-44S to GWA-44D -0.084 Upward GWA-45S to GWA-45D 0.245 Downward MW-08S to MW-08D 0.192 Downward MW-10S to MW-10D -0.018 Upward MW-11S to MW-11D 0.911 Downward MW-20DR to MW-20D -0.320 Upward MW-23DR to MW-23D 0.015 Downward MW-23S to MW-23DR 0.021 Downward MW-30S to MW-30D 0.017 Downward MW-34S to MW-34BRU 0.003 Downward MW-36S to MW-36BRU 0.027 Downward MW-38S to MW-38D -0.032 Upward MW-40S to MW-40BRU -0.082 Upward U5-01S to U5-01D 0.001 Downward U5-02S/SL to U5-02D 0.296 Downward U5-04S to U5-04D 0.014 Downward U5-06S to U5-06D -0.007 Upward U5-08S to U5-08D 0.023 Downward Shallow to Deep Well ID Potential Vertical Gradient Direction AB-04D to AB-04BR 0.098 Downward AB-05BRU to AB-05BR 0.050 Downward AB-06D to AB-06BR 0.195 Downward AS-05BRU to AS-05BR 2.768 Downward GWA-21BRU to GWA-21BR -0.294 Upward GWA-24D to GWA-24BR -0.048 Upward GWA-28BRU to GWA-28BR 0.165 Downward GWA-31D to GWA-31BRA 0.108 Downward GWA-32D to GWA-32BR -0.068 Upward GWA-33D to GWA-33BR 0.305 Downward GWA-44D to GWA-44BR -0.255 Upward MW-21D to MW-21BR 0.090 Downward MW-22DR to MW-22BR -0.012 Upward MW-23DR to MW-23D 0.015 Downward MW-24DR to MW-24D -0.112 Upward MW-32D to MW-32BR -0.044 Upward U5-02D to U5-02BR 0.123 Downward U5-04BRA to U5-04BR 2.410 Downward U5-08D to U5-08BR -0.003 Upward Deep to Bedrock 6RXUFH+'5&RPSUHKHQVLYH6LWH$VVHVVPHQW5HSRUW&OLIIVLGH6WHDP6WDWLRQ$VK%DVLQ$XJXVW24 6RXUFH+'5&RPSUHKHQVLYH6LWH$VVHVVPHQW5HSRUW&OLIIVLGH6WHDP6WDWLRQ$VK%DVLQ$XJXVW !( !( !( !( !( !(!( !( !(!( !(!( !( !( !( !( !( !( !( !(&>&>&>MCCOMBS RDDOW NRI V ER D R STATE RD 1209PRO SPECT CHURCH RDFOX PLSTATE RD 1207WOOD RDSTATE RD 2503RIVER FRONT DR PROSPECT CH URCH R D S T A T E R D 1 2 0 9 M CC R A W R D ST ATE RD 1002 S T A T E R D 1 9 7 7 W ESTON DRS T AT E R D 1 9 9 7 S T A T E R D 1 9 9 4 OLD FIELD RDD Y S A R T R D LIVERETT TRLWATERLOO RDDYSART RDH I N E S R D S T AT E RD 2 1 0 2STAT E RD 1995C O B B R D KIR B Y R D STATERD 2100 HIN ES RD STATE RD 2 102 STATE RD 2101 BALLENGER RD DUKE PO W ER RD OLD US HWY 221ASTATERD 1993US HWY 221 ALTCOI RESULT UNITS PBTV POG Boron 47.1 mg/kg 1.82 45 COI RESULT UNITS PBTV POG Boron 47.3 mg/kg 1.82 45 AB-05BRU (38.5 - 40) AB-05BRU (43.5 - 45) COI RESULT UNITS PBTV POG Cobalt 600 mg/kg 43 0.9 Manganese 18600 mg/kg 1421 65 Thallium 11.8 mg/kg 0.28 0.28 AB-06D (48.5 - 50) COI RESULT UNITS PBTV POG Chromium 144 mg/kg 109 3.8 GWA-03D (48.5 - 50) COI RESULT UNITS PBTV POG Chromium 129 mg/kg 109 3.8 Thallium 0.84 j mg/kg 0.28 0.28 COI RESULT UNITS PBTV POG Chromium 114 mg/kg 109 3.8 Thallium 0.84 j mg/kg 0.28 0.28 GWA-05BRU (13.5 - 15) GWA-05BRU (18.5 - 20) COI RESULT UNITS PBTV POG Chromium 130 mg/kg 109 3.8 COI RESULT UNITS PBTV POG Chromium 111 mg/kg 109 3.8 GWA-06D (28.5 - 30) GWA-06D (38.5 - 40) COI RESULT UNITS PBTV POG Arsenic 10.3 mg/kg 4.88 5.8 GWA-10D (13.5 - 15) COI RESULT UNITS PBTV POG Chromium 144 mg/kg 109 3.8 COI RESULT UNITS PBTV POG Arsenic 8.2 mg/kg 4.88 5.8 COI RESULT UNITS PBTV POG Chromium 119 mg/kg 109 3.8 GWA-14D (23.5 - 25) GWA-14D (28.5 - 30) GWA-14D (47) COI RESULT UNITS PBTV POG Chromium 150 mg/kg 109 3.8 Thallium 0.85 j mg/kg 0.28 0.28 GWA-13BR (13 - 14.5) COI RESULT UNITS PBTV POG Arsenic 49.5 mg/kg 4.88 5.8 GWA-11BRU (18.5 - 20) COI RESULT UNITS PBTV POG Cobalt 73.3 mg/kg 43 0.9 Thallium 0.74 j mg/kg 0.28 0.28 COI RESULT UNITS PBTV POG Cobalt 73.8 mg/kg 43 0.9 GWA-27D (13.5 - 15) GWA-27D (24.9) COI RESULT UNITS PBTV POG Chromium 112 mg/kg 109 3.8 GWA-30BRU (18.5 - 20) COI RESULT UNITS PBTV POG Arsenic 7.7 mg/kg 4.88 5.8 COI RESULT UNITS PBTV POG Strontium 115 mg/kg 85 NE GWA-31D (8.7) GWA-31BR (4) COI RESULT UNITS PBTV POG Chromium 128 mg/kg 109 3.8 IB-01D (8.5 - 10) COI RESULT UNITS PBTV POG Arsenic 7 mg/kg 4.88 5.8 COI RESULT UNITS PBTV POG Arsenic 7.5 mg/kg 4.88 5.8 IB-04D (27 - 28.5) IB-04S/SL (2 - 3) COI RESULT UNITS PBTV POG Cobalt 46.2 mg/kg 43 0.9 MW-21BR (8.5 - 10) COI RESULT UNITS PBTV POG Arsenic 7.9 mg/kg 4.88 5.8 Chromium 116 mg/kg 109 3.8 MW-32S (22.5 - 24) COI RESULT UNITS PBTV POG Arsenic 12.3 j mg/kg 4.88 5.8 MW-34BRU (41.5) COI RESULT UNITS PBTV POG Strontium 104 mg/kg 85 NE MW-36BRU (75.4) COI RESULT UNITS PBTV POG Cobalt 43.7 mg/kg 43 0.9 MW-38D (33.5 - 35) COI RESULT UNITS PBTV POG Arsenic 6.1 mg/kg 4.88 5.8 U5-02D (3.5 - 5.5) COI RESULT UNITS PBTV POG Arsenic 59.2 mg/kg 4.88 5.8 U5-07D (3.5 - 5) FIGURE 7-1 POTENTIAL SECONDARY SOURCE SOIL ANALYTICAL RESULTS CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINADRAWN BY: A. FEIGL PROJECT MANAGER: S. SPINNER CHECKED BY: M. YOUNGBLOOD DATE: 01/25/2018 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\Cliffside\Mapdocs\CSA_Supplement_2\Cliffside - Secondary Source.mxd 500 0 500 1,000250 GRAPHIC SCALE IN FEET CAROLINAS ACTIVE ASH BASIN ASH STORAGE AREA UNITS 1-4 INACTIVE ASH BASIN UNIT 5 INACTIVE ASH BASIN CCP LANDFILL B R O A D R I V E R B R O A D R I V E R LEGEND SATURATED SOIL SAMPLE LOCATION AND DEPTH (FEET BELOW GROUND SURFACE)!( UNSATURATED SOIL SAMPLE LOCATION AND DEPTH (FEET BELOW GROUND SURFACE)!( ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY STREAM< DUKE ENERGY PLANT SITE BOUNDARY NOTES: 1) pH IS NOT INCLUDED IN SECONDARY SOURCE ANALYSIS RESULTS. 2) PBTV = PROVISIONAL BACKGROUND THRESHOLD VALUE POG = PRELIMINARY SOIL REMEDIATION GOAL FOR PROTECTION OF GROUNDWATER j = LAB ESTIMATED VALUE IS GREATHER THAN THE METHOD DETECTION LIMIT (MDL) AND LESS THAN THE METHOD REPORTING LIMIT (MRL) LANDFILL/ASH STORAGE AREA BOUNDARY !( ") !( !( !( !( !( ") ") &<&< &<&<&< &< &<&<&< &< &< &<&< &< &< &<&< &< &< &< &<&< &< ACTIVEASH BASIN ASH STORAGEAREA B R O A D R IV E R AB-1S0.44 GWA-21S0.12 GWA-22S0.024 j GWA-28S< .01 CLMW-5S0.31 MW-11S0.062 j CLP-2ND AB-1D< .01 GWA-21BRU0.16 GWA-22DND GWA-28BRU< .01 CCR-4D MW-20D0.017 j MW-11DND MW-4D< .01 GWA-22BRU< .01 MW-11DAND GWA-21BR< .01 GWA-28BR< .01 CCR-3BR0.022 j MW-20DR< .01 R1 MW-11BRND CLMW-4*ND SW-71.5 SW-BRAB-20.52 SW-BRAB-30.46 S-60.11 S-70.069 j S-220.1 S-230.232 S-24< 0.2 NPDESOUTFALL 002 NOTES:RESULTS SHOWN IN µg/L. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. TOPOGRAPHY IS BASED ON LIDAR BARE EARTH DATA OBTAINED FROM THE FRIS\NORTH CAROLINA FLOODRISK INFORMATION SYSTEM AT http://fris.nc.gov/fris/Download.aspx?FIPS=031ST=NCuser=General%20Public AND ADRAWING TITLED AERIAL TOPOGRAPHIC SURVEY-XXX BY WSP, JOB NUMBER XXXX AND DRAW ING FILE NAMEXXXXX.DW G DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE COORDINATE SYSTEM FIPS3200 (NAD83/2011). FIGURE 9-1DETAILED THALLIUM MAP - ACTIVE ASH BASIN -GROUNDWATER AND SURFACE WATER RESULTSCLIFFSIDE STEAM STATIONDUKE ENERGY CAROLINAS, LLCMOORESBORO, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/23/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Cliffside\Mapdocs\CSA_Supplement_2\Fig09-01 Cliffside - Detailed Thallium Map.mxd 50 0 50 100 GRAPHIC SCALE IN FEET LEGEND CAROLINAS &<WELL IN SHALLOW FLOW LAYER &<WELL IN DEEP FLOW LAYER &<WELL IN BEDROCK FLOW LAYER &<WELL ABANDONED ")WATER SAMPLE LOCATION !(AOW LOCATION !(NPDES OUTFALL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY ASH STORAGE AREA BOUNDARY DUKE ENERGY CAROLINAS CLIFFSIDE PLANTSITE BOUNDARY <STREAM (AMEC NRTR 2015) ACTIVEASH BASIN UNIT 5INACTIVEASH BASIN UNITS 1-4INACTIVEASH BASIN CCPLANDFILL AREA OFINTEREST INSET SCALE1"=3,000' FIGURE 9-2 PIPER DIAGRAM ̶ SURFACE WATERS CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: A. ALBERT PROJECT MANAGER: S. SPINNER LAYOUT: A. ALBERT DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\PIPERS\Piper Diagram - Surface Waters.pptx Well ID % Difference Notes: Orange– Suck Creek surface water Blue– Broad River surface water Gray– Background surface water Data with charge balance >10% are omitted from plot. Data included for analysis up to September 2017. Data represent samples with turbidity <25. 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. L SW -03 0.620 H SW -04 4.708 J SW -SC-01 6.588 D SW -SC-02 0.532 H SW -SC-03 3.559 G SW -SC-04 6.112 L SW -SC-05 5.11 A SW -SC-06 8.353 O SW -09 7.920 O SW -SBRBG 8.477 I SW -BRBG 5.429 M SW -BRU14-1 8.602 I SW -BRU14-3 9.659 B SW -BRU5-1 5.560 P SW -BRAB-3 7.016 SW -BRAB-1 14.335 SW -BRAB-2 3.869 SW -BRU14-2 11.214 SW -2 10.844 CCPSW -1 39.306 CCPSW -2 41.327 SW -SC-7 33.905 Generally characteristic of Surface water background conditions SW-SC-1 SW-SC-6 Representative of water mixing with permitted NPDES discharge upgradient Downstream FIGURE 10-1 PIPER DIAGRAM ̶ ACTIVE ASH BASIN SHALLOW GROUNDWATER CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: A. ALBERT PROJECT MANAGER: S. SPINNER LAYOUT: A. ALBERT DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\PIPERS\Piper Diagram – Active Ash Basin Shallow Groundwater.pptx Well ID % Difference Notes: Orange– Shallow monitoring well Pink– Ash pore water monitoring well Gray– Background shallow monitoring 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. M GWA-20S 2.116 B GWA-21S 1.693 J GWA-22S 0.703 H GWA-26S 7.238 I GWA-28S 9.910 P MW -08S 3.809 C MW -10S 0.401 M MW -11S 0.884 B AB-03S 3.489 O AB-03SL 0.974 I AB-04S 1.288 H AB-04SL 3.853 A AB-05S 0.909 D AB-06S 1.802 P GWA-30S 1.993 GWA-4S 21.741 GWA-24S 12.66 GWA-25S 28.292 MW -30S 10.635 MW -32S 30.831 FIGURE 10-2 PIPER DIAGRAM ̶ ACTIVE ASH BASIN DEEP GROUNDWATER CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: A. ALBERT PROJECT MANAGER: S. SPINNER LAYOUT: A. ALBERT DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\PIPERS\Piper Diagram – Active Ash Basin Deep Groundwater.pptx Well ID % Difference Notes: Green– Deep monitoring well Pink– Ash pore water monitoring well Gray– Background deep monitoring 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. A AB-01D 0.672 M AB-02D 3.477 B AB-04D 7.248 H CCR-12D 1.237 I CCR-13D 4.835 A CCR-15D 8.875 C GWA-20D 4.000 O GWA-27DA 6.292 J GWA-47D 4.095 H MW -10D 2.543 O MW -20D 2.115 J AB-03S 3.489 G AB-03SL 6.974 P AB-04S 1.288 O AB-04SL 3.853 I AB-05S 0.909 A AB-06S 1.802 J MW -32D 8.180 AB-06D 15.626 GWA-04D 12.745 GWA-23D 14.200 GWA-24D 14.051 GWA-27D 13.514 MW -04D 14.469 MW -08D 20.779 MW -21D 19.197 MW -24D 33.747 FIGURE 10-3 PIPER DIAGRAM ̶ ACTIVE ASH BASIN BEDROCK GROUNDWATER CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: A. ALBERT PROJECT MANAGER: S. SPINNER LAYOUT: A. ALBERT DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\PIPERS\Piper Diagram - Active Ash BasinbBedrock Groundwater.pptx Well ID % Difference Notes: Pink– Ash pore water monitoring well Gray– Background bedrock monitoring well Purple– Bedrock monitoring 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. I GWA-24BR 6.114 A MW -22BR 0.674 G MW -22DR 2.135 J MW -24DR 4.468 H AB-04BR 1.676 K AB-06BR 6.666 L BG-01BR 9.178 O GWA-21BR 8.152 L GWA-27BR 4.678 M GWA-28BR 8.675 G GWA-48BR 3.385 G MW -20DR 9.772 C MW -21BR 8.609 J AB-03S 3.489 H AB-03SL 0.974 J AB-04S 1.288 B AB-04SL 3.853 P AB-05S 0.909 C AB-06S 1.802 GWA-20BR 19.299 AB-05BR 10.147 Generally characteristic of Areas in or near central ash basin Generally characteristic of central deeper area in active ash basin Generally characteristic of background conditions FIGURE 10-4 PIPER DIAGRAM ̶ UNITS 1-4 INACTIVE ASH BASIN SHALLOW GROUNDWATER CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: A. ALBERT PROJECT MANAGER: S. SPINNER LAYOUT: A. ALBERT DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\PIPERS\Piper Diagram – Units 1-4 Inactive Shallow Groundwater.pptx Well ID % Difference L GWA-10S 0.969 H GWA-11S 0.526 A GWA-12S 3.006 D GWA-33S 9.107 K GWA-38S 5.139 G GWA-43S 8.652 K GWA-44S 5.627 M MW -23S 1.256 K GWA-30S 1.993 O IB-01S 9.343 L IB-02S-SL 2.352 B IB-04S/SL 6.090 GWA-14S 10.033 MW -24S 12.166 MW -25S 28.292 MW -30S 10.635 MW -32S 30.831 Notes: Orange– Shallow monitoring well Pink– Ash pore water monitoring well Gray– Background shallow monitoring 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. FIGURE 10-5 PIPER DIAGRAM ̶ UNITS 1-4 INACTIVE ASH BASIN DEEP GROUNDWATER CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: A. ALBERT PROJECT MANAGER: S. SPINNER LAYOUT: A. ALBERT DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\PIPERS\Piper Diagram - Units 1-4 Deep Groundwater.pptx Well ID % Difference J MW -32D 8.180 L CCR-IB-01D 3.461 A CCR-IB-03D 3.838 E GWA-10D 8.716 P GWA-14D 2.324 C GWA-29D 3.444 I GWA-33D 3.386 O GWA-43D 5.240 I GWA-44D 3.079 K IB-01D 5.903 E IB-03D 0.958 L MW -23D 3.369 G IB-01S 9.343 P IB-02S-SL 2.352 O IB-04S/SL 6.090 IB-04D 12.862 Notes: Green– Deep monitoring well Pink– Ash pore water monitoring well Gray– Background deep monitoring 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. FIGURE 10-6 PIPER DIAGRAM ̶ UNITS 1-4 INACTIVE ASH BASIN BEDROCK GROUNDWATER CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: A. ALBERT PROJECT MANAGER: S. SPINNER LAYOUT: A. ALBERT DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\PIPERS\Piper Diagram - Unit 1-4 Inactive Bedrock Groundwater.pptx Well ID % Difference Notes: Pink– Ash pore water monitoring well Gray– Background bedrock monitoring well Purple– Bedrock monitoring 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. O GWA-13BR 5.779 L GWA-29BRA 7.221 D GWA-33BR 9.725 C GWA-44BR 4.511 M IB-04BR 9.143 G MW -23DR 6.300 K IB-01S 9.343 I IB-02S-SL 2.352 J IB-04S/SL 6.090 L GWA-24BR 6.114 C MW -22BR 0.674 D MW -22DR 2.135 K MW -24DR 4.468 Generally characteristic of deeper areas in Units 1-4 Inactive ash basin Generally characteristic of shallower area in Units 1-4 Inactive ash basin Generally characteristic of background conditions FIGURE 10-7 PIPER DIAGRAM ̶ UNIT 5 INACTIVE ASH BASIN SHALLOW GROUNDWATER CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: A. ALBERT PROJECT MANAGER: S. SPINNER LAYOUT: A. ALBERT DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\PIPERS\Piper Diagram – Unit 5 Inactive Shallow Groundwater.pptx Well ID % Difference J GWA-30S 1.993 L GWA-02S 5.241 I GWA-05S 3.773 O GWA-34S 6.768 K GWA-35S 9.121 P GWA-45S 2.719 D MW -36S 2.531 E MW -38S 0.163 C MW -40S 5.893 E MW -42S 5.482 J U5-07S 4.277 K U5-07SL 8.286 MW -30S 11.210 MW -32S 30.983 MW -34S 13.935 MW -36S 24.442 MW -37S 12.549 Notes: Orange– Shallow monitoring well Pink– Ash pore water monitoring well Gray– Background shallow monitoring 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. FIGURE 10-8 PIPER DIAGRAM ̶ UNIT 5 INACTIVE ASH BASIN DEEP GROUNDWATER CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: A. ALBERT PROJECT MANAGER: S. SPINNER LAYOUT: A. ALBERT DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\PIPERS\Piper Diagram - Unit 5 Deep Groundwater.pptx Well ID % Difference J MW -32D 8.180 C BG-02D 3.737 B GWA-03D 6.092 O GWA-31D 1.177 E GWA-34BRU 7.487 C GWA-35D 5.685 P GWA-36D 5.909 H MW -30D 5.872 D MW -38D 1.144 M U5-02D 3.553 B U5-03D 2.611 O U5-04D 4.813 A U5-05D 1.961 L U5-06D 4.624 A U5-07D 1.957 J U5-08D 4.795 D U5-07S 4.277 P U5-07SL 8.286 U5-1D 15.009 Notes: Green– Deep monitoring well Pink– Ash pore water monitoring well Gray– Background deep monitoring 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. FIGURE 10-9 PIPER DIAGRAM ̶ UNIT 5 INACTIVE ASH BASIN BEDROCK GROUNDWATER CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: A. ALBERT PROJECT MANAGER: S. SPINNER LAYOUT: A. ALBERT DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\PIPERS\Piper Diagram - Unit 5 Inactive Bedrock Groundwater.pptx Well ID % Difference Notes: Pink– Ash pore water monitoring well Gray– Background bedrock monitoring well Purple– Bedrock monitoring 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. M U5-07S 4.277 H U5-07SL 8.286 L GWA-30BR 4.031 G MW -32BR 4.842 C GWA-31BR 8.803 J GWA-31BRA 8.819 E MW -38BR 1.335 G U5-02BR 0.999 Generally characteristic of deeper area in central Unit 5 Inactive ash basin Generally characteristic of shallower area in central Unit 5 Inactive ash basin Generally characteristic of background conditions FIGURE 10-10 PIPER DIAGRAM ̶ ASH STORAGE AREA SHALLOW GROUNDWATER CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: A. ALBERT PROJECT MANAGER: S. SPINNER LAYOUT: A. ALBERT DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\PIPERS\Piper Diagram - Ash Storage Shallow Groundwater.pptx Well ID % Difference O AS-02S 9.862 D AS-04S 1.368 P AS-05S 7.259 D AS-06S 5.947 O CLMW -02 8.265 C CLMW -03D 4.563 H AB-03S 3.489 P AB-03SL 0.974 B AB-04S 1.288 I AB-04SL 3.853 C AB-05S 0.909 G AB-06S 1.802 K GWA-30S 1.993 AS-01SB 40.135 CLMW -01 10.498 CLMW -03S 57.137 AS-07S 5.951 J Notes: Orange– Shallow monitoring well Pink– Ash pore water monitoring well Gray– Background shallow monitoring 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. FIGURE 10-11 PIPER DIAGRAM ̶ ASH STORAGE AREA DEEP GROUNDWATER CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: A. ALBERT PROJECT MANAGER: S. SPINNER LAYOUT: A. ALBERT DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\PIPERS\Piper Diagram – Ash Storage Deep Groundwater.pptx Well ID % Difference G AS-01D 0.648 L AS-02D 1.464 O AS-06D 8.538 I AS-07D 3.325 E AB-03S 3.489 L AB-03SL 0.974L M AB-04S 1.288 K AB-04SL 3.853 C AB-05S 0.909 B AB-06S 1.802 I MW -32D 8.180 AS-04D 12.451 MW -02D 50.657 GWA-24D 14.615 MW -24D 30.055 Notes: Green– Deep monitoring well Pink– Ash pore water monitoring well Gray– Background deep monitoring 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. FIGURE 10-12 PIPER DIAGRAM ̶ ASH STORAGE AREA BEDROCK GROUNDWATER CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: A. ALBERT PROJECT MANAGER: S. SPINNER LAYOUT: A. ALBERT DATE: JANUARY 2018 FILEPATH: P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\PIPERS\Piper Diagram - Ash Storage Bedrock Groundwater.pptx Well ID % Difference Notes: Pink– Ash pore water monitoring well Gray– Background bedrock monitoring well Purple– Bedrock monitoring 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. M AS-02BR 1.508 M AS-05BR 7.787 D AS-06BRA 7.351 A MW -02DA 3.873. K MW -25DR 3.266 G AB-03S 3.489 P AB-03SL 0.974 C AB-04S 1.288 H AB-04SL 3.853 O AB-05S 0.909 I AB-06S 1.802 I GWA-24BR 6.114 J MW -22BR 0.674 M MW -22DR 2.135 P MW -24DR 4.468 Generally characteristic of areas in or near central active ash basin Generally characteristic of central deeper area in active ash basin Generally characteristic of background conditions &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( !( &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRSTATE RD 1997 H I N E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 22 1ASTATERD 1993DUKE POWER RD U5-6SNM GWA-4S3.9 AB-3SL*9.5 IB-2AL7.7 U5-7SL*7.5 IB-2I5.9 CLMW-46.2 GWA-20S6.2 GWA-35S5.6 IB-2S-SL*6.9 IB-3S5.0 MW-32S5.1 MW-42S5.6 AB-3S*7.7 AB-4S*8.9 AB-5S*8.0 BG-1S5.1 CCPMW-1S4.9 CCPMW-2S5.3 CLMW-14.9 CLM W-3S3.8 CLM W-5S4.5 CLMW-64.9 GWA-21S5.6 GWA-22S5.6 GWA-24S5.2 GWA-25S5.1 GWA-26S3.8 GWA-30S5.8 GWA-34S5.9 GWA-38S5.3 GWA-43S5.1 GWA-44S5.6 IB-1S*5.9 IB-4S-SL*6.6 MW-8S6.5 MW-30S5.1 MW-36S5.6 U5-3SA5.5 U5-4S5.3 U5-7S*6.3 U5-8S6.4 CCR-CCP-3S5.5 CCR-CCP-6S5.2 CCR-CCP-15S5.2 CCR-U5-8S5.3 CCR-U5-9S5.4 CCR-7S6.5 CCR-CCP-9S5.4 CCR-CCP-10S5.1 CCPMW-6S5.2 CLM W-24.3 GWA-12S5.6 CCR-11S7.1 AB-1S4.9 AB-2S5.8 AB-4SL*8.6 AS-2S4.4 AS-5S5.2 AS-6S5.3 CCPTW-25.3 CCR-12S5.0 CCR-IB-1S5.9 CCR-IB-3S6.6 GWA-5S5.1 GWA-45S4.6 MW-10S5.0 MW-11S4.6 MW-34S5.4 U5-1S6.4 CCR-6S4.2 CCR-U5-4S4.9 CCR-U5-6S4.0 AB-6S*8.0 GWA-10S5.3 GWA-14S5.8 GWA-33S4.7 MW-38S5.1 CCR-16S4.3 CCR-CCP-12S5.4 CCR-U5-3S6.1 CCPMW-3S5.0 MW-23S4.8 CCR-U5-10S5.1 AB-3I6.6 AS-1SB4.0 AS-7S*6.5 CCPTW-1S5.3 GWA-2S5.6 GWA-11S5.8 GWA-36S3.7 GWA-37S5.7 MW-40S5.4 CCR-CCP-5S4.9 AS-4SNA GWA-6SNM U5-2S-SLA*NM NOTES: THE NORTH CAR OLIN A 2 L FOR pH IS 6.5-8.5 S.U. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 4.4 - 6.1 S.U. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 11-1ISOCONCENTRATION MAP -pH IN SH ALLOW GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Shallow -pH Only.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS pH CONCENTRATION (S.U.) NOT DETECTED ABOVE REPORTING LIMIT ASSESSMENT WELL BACKGROUND COMPLIANCE W ELL DOWNGRADIENT COMPLIANCE WELL MONITORING W ELL WATER SUPPLY WELL ABANDONED WELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY LANDFILL/ASH STORAGE AREA BOUNDARY DUKE ENERG Y PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &<&< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( &< &<&< &< &< &< &< !( &< &< &<&< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< !( &< &< &< &< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRST A TE R D 1997 H IN E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 221ASTATERD 1993DUKE POWER RD MW-2DNM MW-42DNM GWA-38DNA AB-3BRUANM GWA-25DNM GWA-26DNM GWA-30BRUNM GWA-4D5.4 AS-5BRU5.5GWA-3D5.6 GWA-20D5.7 GWA-22BRU8.2 GWA-35D6.7 IB-3D6.1 MW-4D6.9 MW-20D6.5 MW-32D5.7 CCR-8D5.2 CCR-CCP-13D4.5 CCR-U5-4D5.3 AS-7D5.4 BG-1D5.7 CCR-13D5.1 CLM W-3D5.1 GWA-1BRU6.9 GWA-23D5.3 GWA-24D5.5GWA-27DA5.1 GWA-44D7.2 GWA-47D5.1 IB-1D7.9 IB-2BRU8.0 MW-8D6.2 MW-21D4.3 MW-24D5.4 MW-30D8.4 MW-34BRU7.3 MW-36BRU8.9 U5-2D6.6 U5-3D5.6 U5-4D7.8 U5-5D5.6 U5-8D6.0 CCR-CCP-2D5.6 CCR-CCP-4D4.4 CCR-CCP-6D6.9 CCR-CCP-7D6.5 CCR-CCP-11D7.4 CCR-CCP-14D6.6 CCR-U5-1D5.8 CCR-U5-2D5.2 CCR-U5-8D4.5 U5-7D7.4 GWA-21BRU6.1 MW-10D4.8 U5-6D5.6 CCR-11D6.7 AB-1D6.4 AB-2D6.3 AB-4D5.1 AB-5BRU5.5 AB-6D5.3 AS-2D6.8 AS-4D6.0 AS-6D5.4 BG-2D6.4 CCR-12D6.1 CCR-15D4.8 CCR-IB-3D7.7 GWA-5BRU7.2 GWA-31D6.6 MW-40BRU7.3 U5-1D7.5 CCR-4D5.4 CCR-14D4.7 CCR-16D6.2 CCR-CCP-12D5.7 CCR-U5-5D7.2 CCR-U5-6D5.4 GWA-10D5.0 GWA-14D5.9 GWA-33D6.0 MW-38D5.6 CCR-U5-3D5.8 CCPMW-2D8.9 CCPMW-3D5.4 GWA-12BRU6.0 GWA-27D5.1 GWA-28BRU6.1 GWA-29D5.8 IB-4D7.3 MW-23D6.8 CCR-5D5.0CCR-6D5.0CCR-7D5.6 CCR-U5-10D5.4 AS-1D5.4 AS-3BRU5.2 CCPTW-1D7.6 CCR-IB-1D5.6 GWA-11BRU6.2 GWA-36D5.8 GWA-37D5.8 CCR-CCP-5D6.8 AB-3BRUNM GWA-6DNM NOTES: THE NORTH CAR OLIN A 2 L FOR pH IS 6.5-8.5 S.U. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 4.8 - 6.1 S.U. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 11-2ISOCONCENTRATION MAP -pH IN DEEP GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/26/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Deep -pH Only.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS pH CONCENTRATION (S.U.) NOT DETECTED ABOVE REPORTING LIMIT ASSESSMENT WELL BACKGROUND COMPLIANCE W ELL DOWNGRADIENT COMPLIANCE WELL MONITORING W ELL WATER SUPPLY WELL ABANDONED WELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY LANDFILL/ASH STORAGE AREA BOUNDARY DUKE ENERG Y PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< !( &< &< &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< ACTIVEASH BASIN ASHSTORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E R SUCK CREEKBR OAD RIVER FO X DEN DRH O L L Y W O O D D R V I N E W O O D D R OSPREY LNSTATE R D 1186 MOSTELLAR RD STATERD 1211 MO UNTPLEASANTCHURCH RD FOX PLMCCOMBS RDSTATE RD 1189STATE RD 1193STATE RD 1209PROSPECT CHURCH RDSTATERD 1210BARNS RDS T A T E R D 1 2 0 7WOOD RDSTATERD 2503RIVER FRONT DRP R O S P E C T C H U R C H R D W H E LC H E L R DST ATERD 1192LA K E H O U S E R R D MCCRAW RD STATE RD 1002STATE RD 1209STATE RD 1995 WESTON DRSTATE RD 1997 S T A T E R D 1 9 9 4PLOTAST DROLDFIELD RDLIVERETTTRLB A N D B T R L LIONEL STWATERLOO RDCAMEO DR H IN E S R DSTATERD 2102 STATERD 1995GREEN ACRES RDCOBB RDSTATE RD 2100 STATERD 2117 F ER RY R D HI NES RD S T A T E R D 2 1 0 2 STATE RD 2101 BALLENGER RD STATE RD 1978DUKE POWER RDDYSART RDSTATE RD 2109ISLAND FORD RDSTATE RD 1976CHESTERFIELD RD KIRBY RD OLD USHWY 221ASTATE RD 1993US HWY 221 ALTC-1001:C2801Riverfront6.4 GWA-31BR6.2 C1Well26.2 C-1002: 2901FoxPlace6.2 CCR-CCP-15D8.3 GWA-24BR5.9 MW-20DR7.1 MW-25DR7.5 C1 Well 36.7 C107.0 C4 Well 37.0 C56.6 AB-4BR5.9 AB-5BR5.4AB-6BR6.3 AS-2BR8.4 AS-5BR6.9 BG-1BR9.0 CCPMW-1D5.4 GWA-14BR8.8 GWA-27BR6.5 GWA-33BR8.6 GWA-44BR6.7 MW-24DR6.9 U5-2BR5.8 CCR-CCP-1D6.9 C158.0 C166.6 C177.6 C197.7 C246.3 C77.6 AS-6BRA6.7 GWA-20BR8.7MW-23DR7.1 CCR-CCP-10DA6.9 GWA-13BR6.5 MW-2DA6.7 MW-22DR5.7 CCR-CCP-11BR7.6 CCPMW-6D5.4 GWA-30BR6.1 GWA-31BRA6.2 MW-21BR6.8 MW-32BR6.7 MW-38BR6.4 CCR-3BR6.5 CCR-CCP-3DA6.5 C-1004: C2800Riverfront4.9 C-1006: 2910Fox Place7.3 C-1007: 433Dysart Place7.4 C105Downriver5.4 C116.6 C236.9 C256.4 C266.2 C36.5 C86.2 C8 Sp ring5.6 C9A5.7 GWA-21BR7.2 GWA-28BR6.5 GWA-29BRA7.7 GWA-48BR6.7 IB-4BR7.0 CCR-CCP-9D6.1 C24-16.7 C9B7.1 C2968RiverfrontNM CCPMW-4NM CCPMW-5NM GWA-2BRNM U5-4BRNM GWA-32BRNA U5-8BRNM GWA-29BRNM AS-7BRNMU5-5BRNM NOTES: THE NORTH CAR OLIN A 2 L FOR pH IS 6.5-8.5 S.U. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 5.4 - 7.4 S.U. † CON CENTRATION GREATER THAN C URRENT SITE SPECIFIC PBTVBUT WITHIN THE BACKGR OUND CONCENTRATION RANGE FORSIMILAR PIEDMONT GE OLOGIC SET TINGS. DUE TO GROUNDWATERFLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS,CONCENTRATION DOES NOT SUGGE ST IMPACT FROM THE ASH BASIN. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. NM = NOT MEASU RED; NA = NOT AVAILABLE; ND = NON-DETECT. PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). WATER SUPPLY WE LL SAMPL ED BY NCDEQ BETWEEN MARCH 2015AND S EPTEMBER 2015. FIGURE 11-3ISOCONCENTRATION MAP -pH IN BE DROC K GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Bedrock-phOnly.mxd 700 0 700 1,400350 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS WATER SUPPLY WELL ABANDONED WELL!( pH CONCENTRATION (S.U.) NOT DETECTED ABOVE REPORTING LIMIT ASSESSMENT WELL BACKGROUND COMPLIANCE W ELL DOWNGRADIENT COMPLIANCE WELL MONITORING W ELL &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( !( &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRSTATE RD 1997 H I N E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 22 1ASTATERD 1993DUKE POWER RD U5-6SNM GWA-4S0.85 AB-3SL*823 IB-2AL0.77 U5-7SL*160 IB-2I0.54 j+ CLMW-40.36 j IB-2S-SL*189 11 11110GWA-20S0.31 GWA-35S0.24 IB-3S<1 MW-32S0.09 j+ MW-42S0.096 j AB-3S*128 AB-4S*178 AB-5S*1310 BG-1S<0.1 CCPMW-1S<0.1 CCPMW-2S0.11 j CLMW-11.3 CLM W-3S2 CLM W-5S0.19 CLMW-60.15 GWA-21S0.56 GWA-22S0.31 GWA-24S0.043 j GWA-25S0.73 GWA-26S1.2 GWA-30S0.054 j GWA-34S0.14 GWA-38S0.083 j GWA-43S0.26 GWA-44S0.61 IB-1S*<1 IB-4S-SL*356 MW-8S0.53 MW-30S<0.1 MW-36S0.13 U5-3SA0.19 U5-4S0.1 U5-7S*1440 U5-8S9 CCR-CCP-3S<0.1 CCR-CCP-6S<0.1 CCR-CCP-15S<0.1 CCR-U5-8S0.5 CCR-U5-9S0.098 j CCR-7S0.13 CCR-CCP-9S0.19 CCR-CCP-10S0.14 CCPMW-6S0.182 CLM W-20.93 GWA-12S0.06 j CCR-11S<0.1 AB-1S0.13 AB-2S0.16 AB-4SL*4250 AS-2S5.1 AS-5S0.084 j AS-6S0.098 j CCPTW-20.116 j CCR-12S0.36 CCR-IB-1S0.5 CCR-IB-3S81.9 GWA-5S0.35 GWA-45S3 MW-10S0.37 MW-11S0.24 MW-34S0.048 j U5-1S2 CCR-6S6.6 CCR-U5-4S2.1 CCR-U5-6S0.36 AB-6S*321 GWA-10S0.25 GWA-14S0.21 GWA-33S0.25 MW-38S0.23 CCR-16S1.9 CCR-CCP-12S<0.1 CCR-U5-3S0.18 CCPMW-3S1 MW-23S0.27 CCR-U5-10S0.05 j AB-3I3.5 AS-1SB6.3 AS-7S*368 CCPTW-1S0.093 j GWA-2S0.12 GWA-11S0.99 GWA-36S1.8 GWA-37S1.2 MW-40S0.13 CCR-CCP-5S0.14 AS-4SNA GWA-6SNM U5-2S-SLA*NM NOTES: THE NORTH CAR OLIN A 2 L FOR ARSENIC IS 10 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 1 µg/L. *ASH P ORE WATER WELL DATA ARE DISPLAYED WITH THE SHALLOWFLOW L AYER; HOWEVER , PORE WATER IS CONSIDEREDWASTEWATER A ND GROUN DWATER STANDARDS ARE NOTAPPLICABLE. THE PORE WATER RE SULTS HAVE BEEN USED TOASSIST IN INFE RRING ISOCONCENTRATION CONTOURS. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 11-4ISOCONCENTRATION MAP -ARSENIC IN SHALLOW GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Shallow.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS ARSENIC CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &<&< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( &< &<&< &< &< &< &< !( &< &<&< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< !( &< &< &< &< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRST A TE R D 1997 H IN E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 221ASTATERD 1993DUKE POWER RD 1.3031.3031.3031.30310MW-2DNM MW-42DNM GWA-4D0.3 U5-6D1.5 U5-3D0.14 AS-5BRU0.29GWA-3D0.79 GWA-20D0.1 GWA-22BRU0.49 GWA-35D0.13 IB-3D0.14 MW-4D<0.5 MW-20D0.41 MW-23D0.62 MW-32D0.33 CCR-8D5.3 CCR-CCP-13D<0.1 CCR-U5-4D0.67 AS-7D0.41 BG-1D0.062 j CCR-13D0.046 j CLM W-3D0.093 j GWA-1BRU0.27 GWA-23D0.041 j GWA-24D<0.1GWA-27DA0.17 GWA-44D0.48 GWA-47D0.21 IB-1D0.81 IB-2BRU<0.5 MW-8D0.06 j MW-21D<0.1 MW-24D0.17 MW-30D1 MW-34BRU0.13 MW-36BRU0.26 U5-2D3700 U5-4D1 U5-5D0.8 U5-8D0.13 CCR-CCP-2D0.093 j CCR-CCP-4D0.1 CCR-CCP-6D0.13 CCR-CCP-7D0.092 j CCR-CCP-11D0.71 CCR-CCP-14D0.065 j CCR-U5-1D0.089 j CCR-U5-2D0.12 CCR-U5-8D0.79 U5-7D7.3 GWA-21BRU0.09 j MW-10D0.059 j CCR-11D0.062 j AB-1D0.085 j AB-2D0.11 AB-4D0.095 j AB-5BRU0.5 AB-6D0.041 j AS-2D1.7 AS-4D0.14 AS-6D0.14 BG-2D1 CCR-12D0.28 CCR-15D0.082 j CCR-IB-3D0.76 GWA-5BRU0.54 GWA-31D0.43 MW-40BRU0.81 U5-1D1.1 CCR-4D0.07 j CCR-14D0.25 CCR-16D0.18 CCR-CCP-12D0.12 CCR-U5-5D1.4 CCR-U5-6D0.17 GWA-10D0.1 GWA-14D0.14 GWA-33D1.5 MW-38D0.81 CCR-U5-3D0.18 CCPMW-2D0.887 CCPMW-3D<1 GWA-12BRU0.15 GWA-27D0.17 j+ GWA-28BRU0.54 GWA-29D0.083 j IB-4D0.54 j+ CCR-5D0.31CCR-6D0.61CCR-7D0.094 j CCR-U5-10D0.061 j AS-1D0.066 j AS-3BRU<0.1 CCPTW-1D0.842 j CCR-IB-1D0.12 GWA-11BRU0.2 GWA-36D0.45 GWA-37D0.37 CCR-CCP-5D0.19 GWA-38DNA AB-3BRUANM GWA-25DNM GWA-26DNM GWA-30BRUNM AB-3BRUNM GWA-6DNM NOTES: THE NORTH CAR OLIN A 2 L FOR ARSENIC IS 10 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 1.303 µg/L. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 11-5ISOCONCENTRATION MAP -ARSENIC IN DEEP GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Deep.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS ARSENIC CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &<&< &< !( &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< ACTIVEASH BASIN ASHSTORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BR OAD RIVER B R O A D R IV E R SUCK CREEKFO X DEN DRH O L L Y W O O D D R V I N E W O O D D R OSPREY LNSTATE R D 1186 MOSTELLAR RD STATERD 1211 MO UNTPLEASANTCHURCH RD FOX PLMCCOMBS RDSTATE RD 1189STATE RD 1193STATE RD 1209PROSPECT CHURCH RDSTATERD 1210BARNS RDS T A T E R D 1 2 0 7WOOD RDSTATERD 2503RIVER FRONT DRP R O S P E C T C H U R C H R D W H E LC H E L R DST ATERD 1192LA K E H O U S E R R D MCCRAW RD STATE RD 1002STATE RD 1209STATE RD 1995 WESTON DRSTATE RD 1997 S T A T E R D 1 9 9 4PLOTAST DROLDFIELD RDLIVERETTTRLB A N D B T R L LIONEL STWATERLOO RDCAMEO DR H IN E S R DSTATERD 2102 STATERD 1995GREEN ACRES RDCOBB RDSTATE RD 2100 STATERD 2117 F ER RY R D HI NES RD S T A T E R D 2 1 0 2 STATE RD 2101 BALLENGER RD STATE RD 1978DUKE POWER RDDYSART RDSTATE RD 2109ISLAND FORD RDSTATE RD 1976CHESTERFIELD RD KIRBY RD OLD USHWY 221ASTATE RD 1993US HWY 221 ALTC-1002: 2901FoxPlaceNM C-1001:C2801RiverfrontNM11110GWA-28BR0.18 GWA-31BR0.1 C1Well2<0.5 AS-5BR1.1 CCR-CCP-15D1.2 MW-2DA0.72 GWA-24BR<0.1 MW-25DR3.1 C1 Well 3<1 C101.3 C4 Well 3<1 C5<0.5 AB-4BR0.31 AB-5BR0.054 jAB-6BR0.051 j BG-1BR1.6 CCPMW-1D<0.1 GWA-14BR0.74 GWA-27BR0.38 GWA-44BR0.83 MW-24DR<0.1 U5-2BR127 CCR-CCP-1D0.99 C151 C16<1 C171.1 C19<1 C24<0.5 C71.3 GWA-20BR0.65 CCR-CCP-10DA2.1 GWA-13BR0.11 MW-22DR0.053 j CCR-CCP-11BR0.82 AS-2BR2.2 CCPMW-6D<1 GWA-30BR0.12 GWA-31BRA0.1 MW-20DR<0.1 M1,R1 MW-21BR0.26 MW-32BR0.11 MW-38BR1.2 CCR-3BR0.9 CCR-CCP-3DA0.2 C105Downriver<2 C11<0.5 C23<0.5 C25<0.5 C26<0.5 C3<0.5 C8<0.5 C8 Sp ring<0.5 C9A<0.5 GWA-21BR0.05 jGWA-29BRA1.7 GWA-48BR0.096 j IB-4BR0.13 j AS-6BRA1 MW-23DR0.22 CCR-CCP-9D0.093 j C24-1<0.5 C9B<0.5 GWA-33BR0.086 j CCPMW-4NM CCPMW-5NM GWA-2BRNM U5-4BRNM C2968RiverfrontNA GWA-32BRNA C-1004: C2800RiverfrontNM C-1006: 2910Fox PlaceNM C-1007: 433Dysart PlaceNM AS-7BRNM GWA-29BRNM U5-5BRNM U5-8BRNM NOTES: THE NORTH CAR OLIN A 2 L FOR ARSENIC IS 10 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 1 µg/L. † CON CENTRATION GREATER THAN C URRENT SITE SPECIFIC PBTVBUT WITHIN THE BACKGR OUND CONCENTRATION RANGE FORSIMILAR PIEDMONT GE OLOGIC SET TINGS. DUE TO GROUNDWATERFLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS,CONCENTRATION DOES NOT SUGGE ST IMPACT FROM THE ASH BASIN. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. NM = NOT MEASU RED; NA = NOT AVAILABLE; ND = NON-DETECT. PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). WATER SUPPLY WE LL SAMPL ED BY NCDEQ BETWEEN MARCH 2015AND S EPTEMBER 2015. FIGURE 11-6ISOCONCENTRATION MAP -ARSE NIC IN BE DRO CK GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/26/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Bedrock.mxd 700 0 700 1,400350 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS WATER SUPPLY WELL ABANDONED WELL!( ARSENIC CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT WELL BACKGROUND COMPLIANCE W ELL DOWNGRADIENT COMPLIANCE WELL MONITORING W ELL &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( !( &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRSTATE RD 1997 H I N E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 22 1ASTATERD 1993DUKE POWER RD U5-6SNM GWA-4S192 AB-3SL*986 IB-2AL480 GWA-43S92 IB-2I99 505050 50 5050 50 5 0 700 700700 CLMW-458 GWA-20S223 GWA-35S106 IB-2S-SL*240 IB-3S880 MW-32S<50 MW-42S<50 AB-3S*2500 AB-4S*1760 AB-5S*4140 BG-1S<50 CCPMW-1S<50 CCPMW-2S<50 CLM W-11530 CLM W-3S766 CLM W-5S<50 CLMW-6<50 GWA-21S74.9 GWA-22S234 GWA-24S<50 GWA-25S<50 GWA-26S<50 GWA-30S<50 GWA-34S<50 GWA-38S120 GWA-44S<100 IB-1S*165 IB-4S-SL*390 MW-8S302 MW-30S<50 MW-36S54.9 U5-3SA136 U5-4S68.9 U5-7S*179 U5-8S48.9 j CCR-CCP-3S<50 CCR-CCP-6S<50 CCR-CCP-15S<50 CCR-U5-8S28.3 j CCR-U5-9S406 CCR-7S2600 CCR-CCP-9S<50 CCR-CCP-10S<50 CCPMW-6S4.17 CLM W-2387 GWA-12S<50 CCR-11S672 AB-1S<50 AB-2S182 AB-4SL*986 AS-2S996 AS-5S<50 AS-6S<50 CCPTW-2<50 CCR-12S1160 CCR-IB-1S174 CCR-IB-3S94.3 GWA-5S<50 GWA-45S<50 MW-10S253 MW-11S840 MW-34S<50 U5-1S<50 CCR-6S1210 CCR-U5-4S547 CCR-U5-6S178 AB-6S*4310 GWA-10S134 GWA-14S67.6 GWA-33S43.9 j MW-38S113 CCR-16S2260 CCR-CCP-12S<50 CCR-U5-3S139 CCPMW-3S26.6 MW-23S35.8 j U5-7SL*180 CCR-U5-10S<50 AB-3I68.4 AS-1SB1420 AS-7S*1120 CCPTW-1S<50 GWA-2S131 GWA-11S397 GWA-36S177 GWA-37S73 MW-40S<50 CCR-CCP-5S<50 AS-4SNA GWA-6SNM U5-2S-SLA*NM NOTES: THE NORTH CAR OLIN A 2 L FOR BORON IS 700 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 50 µg/L. *ASH P ORE WATER WELL DATA ARE DISPLAYED WITH THE SHALLOWFLOW L AYER; HOWEVER , PORE WATER IS CONSIDEREDWASTEWATER A ND GROUN DWATER STANDARDS ARE NOTAPPLICABLE. THE PORE WATER RE SULTS HAVE BEEN USED TOASSIST IN INFE RRING ISOCONCENTRATION CONTOURS. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT SAMPLE RESULT S F OR EA CH WELL. COLLECTION DATESDEPICTED ON FIGURE RANGE FROM MARCH 2015 TO AUGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 11-7ISOCONCENTRATION MAP -BORON IN SHALLOW GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Shallow.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS BO RON CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &<&< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( &< &<&< &< &< &< &< !( &< &<&< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< !( &< &< &< &< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRST A TE R D 1997 H IN E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 221ASTATERD 1993DUKE POWER RD 5 0 50 50 5 0 50 50700700700700 700700 MW-42DNM GWA-4D184 CCR-16D<50 AS-5BRU<50GWA-3D416 GWA-20D817 GWA-22BRU<50 GWA-35D118 IB-3D357 MW-4D81 MW-20D598 MW-23D54.1 MW-32D<50 CCR-8D1870 CCR-CCP-13D<50 CCR-U5-4D879 AS-7D728 BG-1D<50 CCR-13D62 CLM W-3D682 GWA-1BRU<50 GWA-23D<50 GWA-24D<50GWA-27DA915 GWA-44D40.3 j GWA-47D267 IB-1D<50 IB-2BRU<50 MW-8D125 MW-21D<50 MW-24D<50 MW-30D<50 MW-34BRU<50 MW-36BRU<50 U5-2D118 U5-3D124 U5-4D<50 U5-5D454 U5-8D44.4 j CCR-CCP-2D<50 CCR-CCP-4D<50 CCR-CCP-6D35.9 j CCR-CCP-7D<50 CCR-CCP-11D<50 CCR-CCP-14D<50 CCR-U5-1D<50 CCR-U5-2D90.8 CCR-U5-8D227 U5-7D140 GWA-21BRU137 MW-10D161 U5-6D182 M1 CCR-11D1180 AB-1D610 AB-2D162 AB-4D<50 AB-5BRU<50 AB-6D<50 AS-2D338 AS-4D<50 AS-6D<50 BG-2D<50 CCR-12D266 CCR-15D102 CCR-IB-3D73.6 GWA-5BRU26 j GWA-31D74.9 MW-40BRU<50 U5-1D<50 CCR-4D50.3 CCR-14D941 CCR-CCP-12D<50 CCR-U5-5D441 CCR-U5-6D191 GWA-10D<50 GWA-14D58.2 GWA-33D<50 MW-38D226 CCR-U5-3D136 CCPMW-2D9.27 CCPMW-3D13.6 j GWA-12BRU<50 M1 GWA-27D939 GWA-28BRU<50 GWA-29D<50 IB-4D44 j CCR-5D76CCR-6D1140CCR-7D620 CCR-U5-10D<50 AS-1D620 AS-3BRU<50 CCPTW-1D<50 CCR-IB-1D29.9 j GWA-11BRU396 GWA-36D183 GWA-37D29.5 j CCR-CCP-5D<50 GWA-38DNA AB-3BRUANM GWA-25DNM GWA-26DNM GWA-30BRUNM AB-3BRUNM GWA-6DNM MW-2DNM NOTES: THE NORTH CAR OLIN A 2 L FOR BORON IS 700 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 50 µg/L. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT SAMPLE RESULT S F OR EA CH WELL. COLLECTION DATESDEPICTED ON FIGURE RANGE FROM MARCH 2015 TO AUGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 11-8ISOCONCENTRATION MAP -BORO N IN D EEP G ROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Deep.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS BO RON CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &<&< &< !( &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< ACTIVEASH BASIN ASHSTORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BR OAD RIVER B R O A D R IV E R SUCK CREEKFO X DEN DRH O L L Y W O O D D R V I N E W O O D D R OSPREY LNSTATE R D 1186 MOSTELLAR RD STATERD 1211 MO UNTPLEASANTCHURCH RD FOX PLMCCOMBS RDSTATE RD 1189STATE RD 1193STATE RD 1209PROSPECT CHURCH RDSTATERD 1210BARNS RDS T A T E R D 1 2 0 7WOOD RDSTATERD 2503RIVER FRONT DRP R O S P E C T C H U R C H R D W H E LC H E L R DST ATERD 1192LA K E H O U S E R R D MCCRAW RD STATE RD 1002STATE RD 1209STATE RD 1995 WESTON DRSTATE RD 1997 S T A T E R D 1 9 9 4PLOTAST DROLDFIELD RDLIVERETTTRLB A N D B T R L LIONEL STWATERLOO RDCAMEO DR H IN E S R DSTATERD 2102 STATERD 1995GREEN ACRES RDCOBB RDSTATE RD 2100 STATERD 2117 F ER RY R D HI NES RD S T A T E R D 2 1 0 2 STATE RD 2101 BALLENGER RD STATE RD 1978DUKE POWER RDDYSART RDSTATE RD 2109ISLAND FORD RDSTATE RD 1976CHESTERFIELD RD KIRBY RD OLD USHWY 221ASTATE RD 1993US HWY 221 ALT5 0 5050 C-1001:C2801Riverfront<25 GWA-28BR<50 GWA-31BR32.8 j C-1002: 2901FoxPlace<25 CCR-CCP-15D<50 GWA-24BR<50 MW-25DR<50 C1 Well 3<25 C10<5 C2968Riverfront<50 C4 Well 327 C56.2 AB-4BR31.8 j AB-5BR<50AB-6BR<50 BG-1BR<50 CCPMW-1D<50 GWA-14BR<50 GWA-27BR210 GWA-44BR51.8 j MW-2DA<50 MW-24DR<50 U5-2BR102 CCR-CCP-1D<50 C15<25 C16<25 C17<25 C19<25 C24<50 C7<5 GWA-20BR257 CCR-CCP-10DA<50 GWA-13BR92.8 MW-22DR<50 CCR-CCP-11BR<50 AS-2BR381 AS-5BR<50 CCPMW-6D<50 GWA-30BR<50 GWA-31BRA32.8 j MW-20DR142 MW-21BR<50 MW-32BR<50 MW-38BR33.2 j CCR-3BR<50 CCR-CCP-3DA<50 C-1004: C2800Riverfront<25 C-1006: 2910Fox Place<25 C-1007: 433Dysart Place<25 C105Downriver<50 C11<5 C23<5 C25<50 C26<50 C35 C8<5 C8 Sp ring6.5 C9A6.2 GWA-21BR102GWA-29BRA<50 GWA-48BR<50 IB-4BR57 AS-6BRA<50 MW-23DR<50 CCR-CCP-9D<50 C1Well2<5 C24-1<5 C9B<5 GWA-33BR79.8 CCPMW-4NM CCPMW-5NM GWA-2BRNM U5-4BRNM GWA-32BRNA AS-7BRNM GWA-29BRNM U5-5BRNM U5-8BRNM NOTES: THE NORTH CAR OLIN A 2 L FOR BORON IS 700 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 50 µg/L. † CON CENTRATION GREATER THAN C URRENT SITE SPECIFIC PBTVBUT WITHIN THE BACKGR OUND CONCENTRATION RANGE FORSIMILAR PIEDMONT GE OLOGIC SET TINGS. DUE TO GROUNDWATERFLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS,CONCENTRATION DOES NOT SUGGE ST IMPACT FROM THE ASH BASIN. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT SAMPLE RESULT S F OR EA CH WELL. COLLECTION DATESDEPICTED ON FIGURE RANGE FROM MARCH 2015 TO AUGUST 2017. NM = NOT MEASU RED; NA = NOT AVAILABLE; ND = NON-DETECT. PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). WATER SUPPLY WE LL SAMPL ED BY NCDEQ BETWEEN MARCH 2015AND S EPTEMBER 2015. FIGURE 11-9ISOCONCENTRATION MAP -BORON IN B EDROCK GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/26/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Bedrock.mxd 700 0 700 1,400350 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS WATER SUPPLY WELL ABANDONED WELL!( BO RON CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT WELL BACKGROUND COMPLIANCE W ELL DOWNGRADIENT COMPLIANCE WELL MONITORING W ELL &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( !( &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRSTATE RD 1997 H I N E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 22 1ASTATERD 1993DUKE POWER RD U5-6SNM GWA-4S0.46 j AB-3SL*3.1 IB-2I0.56 j+ MW-8S<0.5 CLMW-40.24 j+3.9683 .9 6 8 3.9683.9683.9683.9683.968 10101010GWA-20S7.6 GWA-35S0.51 IB-2S-SL*0.37 j IB-3S17.6 MW-32S0.52 j+ MW-42S71.1 AB-3S*0.42 j AB-4S*0.27 j AB-5S*0.11 j BG-1S0.38 j CCPMW-1S0.28 j CCPMW-2S1.08 CLMW-12.6 CLM W-3S2 CLM W-5S3.7 CLMW-62.2 GWA-21S<0.5 GWA-22S33.1 GWA-24S0.32 j GWA-25S0.26 j GWA-26S0.26 j GWA-30S0.12 j GWA-34S0.36 j GWA-38S1.3 GWA-43S1.9 GWA-44S3.7 IB-1S*<1 IB-4S-SL*0.25 j MW-30S2.6 MW-36S0.41 j U5-3SA1.6 j+U5-4S4.3 U5-7S*0.58 j+ U5-8S0.17 j CCR-CCP-3S1.6 CCR-CCP-6S1.3 CCR-CCP-15S0.52 CCR-U5-8S2.5 CCR-U5-9S0.55 B CCR-7S2.2 CCR-CCP-9S1.6 CCR-CCP-10S2.3 CCPMW-6S0.74 CLM W-21 GWA-12S0.53 CCR-11S3.7 AB-1S2.5 AB-2S0.47 j AB-4SL*0.36 j AS-2S2 AS-5S1.1 AS-6S4.4 CCPTW-21.46 CCR-12S4.1 CCR-IB-1S2.5 CCR-IB-3S0.28 j GWA-5S1.2 GWA-45S2.9 j+ MW-10S0.69 MW-11S22.4 MW-34S0.46 j+ U5-1S1.7 CCR-6S1 CCR-U5-4S1.6 CCR-U5-6S0.24 j AB-6S*0.22 j GWA-10S0.46 j GWA-14S169 GWA-33S0.84 MW-38S1.9 CCR-16S2.1 CCR-CCP-12S0.39 j CCR-U5-3S2.4 CCPMW-3S0.599 IB-2AL1.6 j+ MW-23S3.4 U5-7SL*12.3 j+ CCR-U5-10S2.2 AB-3I1.6 AS-1SB10.4 AS-7S*0.37 j CCPTW-1S1.66 GWA-2S0.48 j GWA-11S3.2 GWA-36S0.43 j GWA-37S0.78 MW-40S2 CCR-CCP-5S2.8 AS-4SNA GWA-6SNM U5-2S-SLA*NM NOTES: THE NORTH CAR OLIN A 2 L FOR TOTA L CHROMUM IS 10 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 3.968 µg/L. *ASH P ORE WATER WELL DATA ARE DISPLAYED WITH THE SHALLOWFLOW L AYER; HOWEVER , PORE WATER IS CONSIDEREDWASTEWATER A ND GROUN DWATER STANDARDS ARE NOTAPPLICABLE. THE PORE WATER RE SULTS HAVE BEEN USED TOASSIST IN INFE RRING ISOCONCENTRATION CONTOURS. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-10ISOCONCENTRATION MAP -TO TAL CHROMIUM IN SHALLOW GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Shallow.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS TOTAL CHROMIUM CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &<&< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( &< &<&< &< &< &< &< !( &< &<&< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< !( &< &< &< &< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRST A TE R D 1997 H IN E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 221ASTATERD 1993DUKE POWER RD 1.7911.7911.7911.7911.7 9 1 1.7911 .7 9 1 1.791 1 0 1010 MW-2DNM MW-42DNM GWA-4D0.36 j AS-5BRU0.34 jGWA-3D2.2 GWA-20D0.33 j GWA-22BRU0.25 j GWA-35D0.74 IB-3D50 MW-4D0.27 j+ MW-20D0.13 j MW-23D0.83 MW-32D0.17 j CCR-8D0.21 j CCR-CCP-13D0.24 j CCR-U5-4D0.41 j AS-7D2 BG-1D0.11 j CCR-13D0.19 j CLM W-3D3.8 GWA-1BRU0.5 j GWA-23D0.3 j GWA-24D<0.5GWA-27DA7.3 GWA-44D2.3 GWA-47D1.7 IB-1D<1 IB-2BRU0.22 j MW-8D0.71 MW-21D0.39 j MW-24D0.29 j MW-30D0.44 j MW-34BRU2.2 MW-36BRU0.94 U5-2D1.2 U5-3D1.3 U5-4D8.5 U5-5D5.4 U5-8D1.4 CCR-CCP-2D1.9 CCR-CCP-4D0.77 CCR-CCP-6D0.43 j CCR-CCP-7D1.5 CCR-CCP-11D0.29 j CCR-CCP-14D1.2 CCR-U5-1D0.5 CCR-U5-2D3.2 CCR-U5-8D101 U5-7D2.8 j+ GWA-21BRU3 MW-10D0.32 j U5-6D18.1 CCR-11D0.15 j AB-1D2.4 AB-2D1.6 AB-4D0.17 j AB-5BRU0.12 j AB-6D0.14 j AS-2D0.8 AS-4D3.4 AS-6D0.79 BG-2D1.34 CCR-12D0.8 CCR-15D0.17 j CCR-IB-3D0.94 GWA-5BRU2 GWA-31D0.81 MW-40BRU0.098 j U5-1D0.33 j CCR-4D0.42 j CCR-14D0.36 j CCR-16D0.47 j CCR-CCP-12D0.44 j CCR-U5-5D0.3 j CCR-U5-6D0.27 j GWA-10D0.86 GWA-14D1.6 GWA-33D0.39 j MW-38D1.3 CCR-U5-3D0.63 CCPMW-2D0.485 CCPMW-3D1.37 GWA-12BRU0.74 GWA-27D0.52 j+ GWA-28BRU0.46 j GWA-29D0.45 j IB-4D0.34 j CCR-5D0.46 j,BCCR-6D1.3CCR-7D0.35 j CCR-U5-10D0.96 AS-1D1.3 AS-3BRU0.6 CCPTW-1D0.656 j CCR-IB-1D0.94 GWA-11BRU10.9 GWA-36D0.79 GWA-37D4.4 CCR-CCP-5D0.21 j GWA-38DNA AB-3BRUANM GWA-25DNM GWA-26DNM GWA-30BRUNM AB-3BRUNM GWA-6DNM NOTES: THE NORTH CAR OLIN A 2 L FOR TOTA L CHROMUM IS 10 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 1.791 µg/L. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-11ISOCONCENTRATION MAP -TO TAL CHROMIUM IN D EEP GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Deep.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS TOTAL CHROMIUM CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &<&< &< !( &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< ACTIVEASH BASIN ASHSTORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BR OAD RIVER B R O A D R IV E R SUCK CREEKFO X DEN DRH O L L Y W O O D D R V I N E W O O D D R OSPREY LNSTATE R D 1186 MOSTELLAR RD STATERD 1211 MO UNTPLEASANTCHURCH RD FOX PLMCCOMBS RDSTATE RD 1189STATE RD 1193STATE RD 1209PROSPECT CHURCH RDSTATERD 1210BARNS RDS T A T E R D 1 2 0 7WOOD RDSTATERD 2503RIVER FRONT DRP R O S P E C T C H U R C H R D W H E LC H E L R DST ATERD 1192LA K E H O U S E R R D MCCRAW RD STATE RD 1002STATE RD 1209STATE RD 1995 WESTON DRSTATE RD 1997 S T A T E R D 1 9 9 4PLOTAST DROLDFIELD RDLIVERETTTRLB A N D B T R L LIONEL STWATERLOO RDCAMEO DR H IN E S R DSTATERD 2102 STATERD 1995GREEN ACRES RDCOBB RDSTATE RD 2100 STATERD 2117 F ER RY R D HI NES RD S T A T E R D 2 1 0 2 STATE RD 2101 BALLENGER RD STATE RD 1978DUKE POWER RDDYSART RDSTATE RD 2109ISLAND FORD RDSTATE RD 1976CHESTERFIELD RD KIRBY RD OLD USHWY 221ASTATE RD 1993US HWY 221 ALT3.567C-1001:C2801Riverfront<0.5 GWA-28BR0.6 GWA-31BR0.2 j MW-23DR0.12 j C1Well23.2 C-1002: 2901Fox Place<0.5 CCR-CCP-15D0.52 GWA-24BR0.25 j MW-25DR0.34 j C1 Well 3<5 C102.3 C2968Riverfront<10 C4 Well 36.7 C52.2 AB-4BR0.22 j AB-5BR0.14 jAB-6BR0.32 j BG-1BR0.82 CCPMW-1D0.18 j GWA-14BR0.98 GWA-27BR0.62 GWA-44BR4 MW-2DA4.2 MW-24DR0.14 j U5-2BR0.21 j CCR-CCP-1D0.51 C15<5 C16<5 C17<5 C19<5 C24<5 C7<0.5 GWA-20BR0.49 j CCR-CCP-10DA0.37 j GWA-13BR1.2 MW-22DR0.12 j CCR-CCP-11BR0.38 j AS-2BR2.5 AS-5BR2.3 CCPMW-6D0.986 j GWA-30BR0.13 j GWA-31BRA0.2 j+ MW-20DR<0.5 M1,R1 MW-21BR0.31 j MW-32BR0.39 j MW-38BR1.2 CCR-3BR3.1 CCR-CCP-3DA1.1 C-1004: C2800Riverfront1.2 C-1006: 2910Fox Place<0.5 C-1007: 433Dysart Place0.88 C105Downriver<10 C11<0.5 C231.5 C25<0.5 C26<0.5 C30.56 C80.86 C8 Sp ring2.2 C9A<0.5 GWA-21BR0.15 jGWA-29BRA0.39 j GWA-48BR1.1 IB-4BR<0.5 AS-6BRA3.7 CCR-CCP-9D0.3 j C24-10.88 C9B<0.5 GWA-33BR0.23 j+ CCPMW-4NM CCPMW-5NM GWA-2BRNM U5-4BRNM GWA-32BRNA AS-7BRNM GWA-29BRNM U5-5BRNM U5-8BRNM NOTES: THE NORTH CAR OLIN A 2 L FOR TOTA L CHROMUM IS 10 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 3.567 µg/L. † CON CENTRATION GREATER THAN C URRENT SITE SPECIFIC PBTVBUT WITHIN THE BACKGR OUND CONCENTRATION RANGE FORSIMILAR PIEDMONT GE OLOGIC SET TINGS. DUE TO GROUNDWATERFLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS,CONCENTRATION DOES NOT SUGGE ST IMPACT FROM THE ASH BASIN. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. NM = NOT MEASU RED; NA = NOT AVAILABLE; ND = NON-DETECT. PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). WATER SUPPLY WE LL SAMPL ED BY NCDEQ BETWEEN MARCH 2015AND S EPTEMBER 2015. FIG URE 11-12ISOCONCENTRATION MAP -TO TAL CHROMIUM IN B EDROCK GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/26/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Bedrock.mxd 700 0 700 1,400350 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS WATER SUPPLY WELL ABANDONED WELL!( TOTAL CHROMIUM CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT WELL BACKGROUND COMPLIANCE W ELL DOWNGRADIENT COMPLIANCE WELL MONITORING W ELL &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( !( &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRSTATE RD 1997 H I N E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 22 1ASTATERD 1993DUKE POWER RD CCPMW-3SNA CCR-U5-10SNM CCR-U5-3SNM CCPTW-1SNA CCR-CCP-5SNM CCPMW-6SNA CCR-11SNM CCR-CCP-9SNM CCR-CCP-10SNM U5-6SNM AB-3SL*0.015 j U5-7SL*<1.5 AB-3S*<0.12 D3 0.452 0 . 4 5 2 0.4520.4520 .4 5 2 0.4520.452GWA-20S<0.12 D3 GWA-35S1.2 IB-3S0.22 MW-32S0.16 MW-42S0.92 AB-4S*0.035 AB-5S*<0.12 D3 BG-1S0.2 CCPMW-1S0.26 CLMW-10.23 CLM W-3S<0.025 CLM W-5S0.9 CLMW-60.11 GWA-21S0.43 GWA-22S0.092 j GWA-24S0.019 j GWA-25S0.045 GWA-26S0.039 GWA-30S0.031 GWA-34S0.022 j GWA-38S0.2 GWA-43S0.58 GWA-44S1.4 IB-1S*<0.03 MW-8S<0.025 MW-30S2.4 MW-36S0.023 j U5-3SA0.1 U5-4S2.5 U5-7S*<1.5 U5-8S<0.12 D3 CLMW-20.59 GWA-12S0.082 AB-1S0.45 AB-2S<0.25 D3,M6 AB-4SL*<0.025 AS-2S2 AS-5S1.1 AS-6S2.2 CCR-12S2.6 CCR-IB-1S<0.12 D3 CCR-IB-3S<0.025 GWA-5S0.3 P4 GWA-45S1.9 MW-10S0.51 MW-11S0.63 MW-34S<0.03 U5-1S<0.12P4,D3 AB-6S*<0.025 GWA-10S0.04 GWA-14S0.71 GWA-33S0.6 MW-38S0.31 MW-23S1.8 AB-3I0.9 AS-1SB0.72 AS-7S*<0.12 D3,M1 GWA-2S0.14 GWA-4S0.57 GWA-11S0.035 GWA-36S<0.12 D3 GWA-37S1.9 MW-40S0.55 CCPMW-2SNA IB-2INA IB-4S-SL*NA CCR-CCP-3SNM CCR-CCP-6SNM CCR-CCP-15SNM CCR-U5-8SNM CCR-U5-9SNM AS-4SNA CCPTW-2NA CCR-6SNM CCR-U5-4SNM CCR-U5-6SNM GWA-6SNM U5-2S-SLA*NM CCR-16SNM CCR-CCP-12SNM NOTES: NO NORTH CAROLINA 2L OR INTERIM MAXIMUM ALLOWABLECONCENTRATION ESTABLISHED FOR HEXAVALENT CHROMIUM. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 0.452 µg/L. *ASH P ORE WATER WELL DATA ARE DISPLAYED WITH THE SHALLOWFLOW L AYER; HOWEVER , PORE WATER IS CONSIDEREDWASTEWATER A ND GROUN DWATER STANDARDS ARE NOTAPPLICABLE. THE PORE WATER RE SULTS HAVE BEEN USED TOASSIST IN INFE RRING ISOCONCENTRATION CONTOURS. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-13ISOCONCENTRATION MAP -HEX AVALE NT CHROMIUM IN SHALLOWGROUNDWATERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCDRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Shallow.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS HEXAVALENT CHROMIUM CONCENTRATION (mg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &<&< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( &< &<&< &< &< &< &< !( &< &<&< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< !( &< &< &< &< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRST A TE R D 1997 H IN E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 221ASTATERD 1993DUKE POWER RD 0 .1 6 0.16 0.1 6 0.160.16 0.16 0.160.16 CCPMW-2DNA CCPMW-3DNA IB-4DNA CCR-5DNM CCR-6DNMCCR-7DNM CCR-U5-10DNM CCPTW-1DNA CCR-CCP-5DNM CCR-11DNM MW-2DNM CCR-8DNM CCR-CCP-13DNM CCR-U5-4DNM MW-42DNM AS-5BRU0.05GWA-3D0.24 GWA-20D0.33 GWA-22BRU0.056 GWA-35D<0.12 D3 IB-3D<0.25 MW-20D<0.12 D3 MW-23D0.049 j D3 MW-32D0.028 AS-7D0.16 BG-1D0.067 CCR-13D0.012 j CLM W-3D0.077 GWA-1BRU<0.025 GWA-23D0.04 GWA-24D0.027GWA-27DA0.12 j,D3 GWA-44D0.013 j GWA-47D0.02 j IB-1D0.033 MW-8D<0.12 D3 MW-21D0.06 MW-24D0.041 MW-30D0.024 j,M1,R1 MW-34BRU<0.025 MW-36BRU0.019 j U5-2D0.59 U5-3D0.33 U5-4D0.71 U5-5D<0.12 D3 U5-8D0.74 GWA-21BRU0.42 MW-10D0.032 U5-6D0.13 j,D3 AB-1D<0.12 D3 AB-2D<0.25 D3 AB-4D0.13 AB-5BRU0.02 j AB-6D0.034 AS-2D0.054 j,D3 AS-4D1.6 AS-6D0.048 BG-2D0.25 CCR-12D<0.12 D3 CCR-15D0.019 j CCR-IB-3D0.72 GWA-5BRU0.061 j,D3 GWA-31D0.14 MW-40BRU0.091 U5-1D0.049 P4 GWA-10D0.3 GWA-14D1.1 GWA-33D0.03 MW-38D0.067 j,D3 GWA-12BRU0.029 GWA-27D0.15 GWA-28BRU0.83 P4 GWA-29D0.081 AS-1D0.53 AS-3BRU0.035 CCR-IB-1D<0.025 GWA-4D1.7 GWA-11BRU0.15 GWA-36D<0.12 D3 GWA-37D0.14 GWA-38DNA IB-2BRUNA CCR-CCP-2DNM CCR-CCP-4DNM CCR-CCP-6DNM CCR-CCP-7DNM CCR-CCP-11DNM CCR-CCP-14DNM CCR-U5-1DNM CCR-U5-2DNM CCR-U5-8DNM AB-3BRUANM GWA-25DNM GWA-26DNM GWA-30BRUNM U5-7DNA CCR-4DNM CCR-14DNM CCR-16DNM CCR-CCP-12DNM CCR-U5-5DNM CCR-U5-6DNM AB-3BRUNM GWA-6DNM CCR-U5-3DNM NOTES: NO NORTH CAROLINA 2L OR INTERIM MAXIMUM ALLOWABLECONCENTRATION ESTABLISHED FOR HEXAVALENT CHROMIUM. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 0.16 µg/L. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-14ISOCONCENTRATION MAP -HEX AVALE NT CHROMIUM IN DEEP GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Deep.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS HEXAVALENT CHROMIUM CONCENTRATION (mg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &<&< &< !( &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< ACTIVEASH BASIN ASHSTORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BR OAD RIVER B R O A D R IV E R SUCK CREEKFO X DEN DRH O L L Y W O O D D R V I N E W O O D D R OSPREY LNSTATE R D 1186 MOSTELLAR RD STATERD 1211 MO UNTPLEASANTCHURCH RD FOX PLMCCOMBS RDSTATE RD 1189STATE RD 1193STATE RD 1209PROSPECT CHURCH RDSTATERD 1210BARNS RDS T A T E R D 1 2 0 7WOOD RDSTATERD 2503RIVER FRONT DRP R O S P E C T C H U R C H R D W H E LC H E L R DST ATERD 1192LA K E H O U S E R R D MCCRAW RD STATE RD 1002STATE RD 1209STATE RD 1995 WESTON DRSTATE RD 1997 S T A T E R D 1 9 9 4PLOTAST DROLDFIELD RDLIVERETTTRLB A N D B T R L LIONEL STWATERLOO RDCAMEO DR H IN E S R DSTATERD 2102 STATERD 1995GREEN ACRES RDCOBB RDSTATE RD 2100 STATERD 2117 F ER RY R D HI NES RD S T A T E R D 2 1 0 2 STATE RD 2101 BALLENGER RD STATE RD 1978DUKE POWER RDDYSART RDSTATE RD 2109ISLAND FORD RDSTATE RD 1976CHESTERFIELD RD KIRBY RD OLD USHWY 221ASTATE RD 1993US HWY 221 ALTCCR-CCP-9DNM CCR-CCP-15DNM CCR-3BRNM 0.120.120.12 C-1001:C2801Riverfront<0.03 GWA-28BR0.38 GWA-31BR0.051 MW-23DR0.036 C1Well2<0.6 C-1002: 2901Fox Place<0.03 GWA-48BR<0.12 D3 GWA-24BR0.021 j MW-25DR0.13 C1 Well 3<20 C10<0.6 C4 Well 3<0.03 C50.74 AB-4BR0.16 j,D3 AB-5BR0.018 jAB-6BR0.81 BG-1BR0.37 CCPMW-1D0.076 GWA-14BR0.014 j GWA-27BR0.021 j GWA-44BR<0.12 MW-2DA0.014 j MW-24DR0.013 j U5-2BR<0.12 D3 C15<20 C16<20 C17<20 C19<20 C240.44 C7<0.03 GWA-20BR0.6 GWA-13BR<0.12 D3 MW-22DR0.07 j,D3,M1 AS-2BR0.038 AS-5BR1.3 GWA-30BR<0.12 P 4,D3 GWA-31BRA0.051 j+ MW-20DR0.036 MW-21BR0.019 j MW-32BR0.45 MW-38BR<0.12 D3 C-1004: C2800Riverfront0.63 C-1006: 2910Fox Place0.026 C-1007: 433Dysart Place<0.025 C110.096 C230.83 C250.11 C260.15 C3<0.6 C80.1 C8 Spring<0.03 C9A0.1 GWA-21BR0.58GWA-29BRA0.011 j AS-6BRA0.21 j+ C24-10.63 C9B<0.03 GWA-33BR<0.03 CCR-CCP-10DANM CCR-CCP-1DNM CCPMW-4NM CCPMW-5NM GWA-2BRNM U5-4BRNM C2968RiverfrontNA CCPMW-6DNA GWA-32BRNA CCR-CCP-3DANM C105DownriverNA CCR-CCP-11BRNM AS-7BRNM GWA-29BRNMIB-4BRNA U5-5BRNM U5-8BRNM NOTES: NO NORTH CAROLINA 2L OR INTERIM MAXIMUM ALLOWABLECONCENTRATION ESTABLISHED FOR HEXAVALENT CHROMIUM. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 0.12 µg/L. † CON CENTRATION GREATER THAN C URRENT SITE SPECIFIC PBTVBUT WITHIN THE BACKGR OUND CONCENTRATION RANGE FORSIMILAR PIEDMONT GE OLOGIC SET TINGS. DUE TO GROUNDWATERFLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS,CONCENTRATION DOES NOT SUGGE ST IMPACT FROM THE ASH BASIN. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. NM = NOT MEASU RED; NA = NOT AVAILABLE; ND = NON-DETECT. PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). WATER SUPPLY WE LL SAMPL ED BY NCDEQ BETWEEN MARCH 2015AND S EPTEMBER 2015. FIG URE 11-15ISOCONCENTRATION MAP -HEXAVALENT CHRO MIUM IN BEDROCKGROUNDWATERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCDRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/26/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Bedrock.mxd 700 0 700 1,400350 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS WATER SUPPLY WELL ABANDONED WELL!( HEXAVALENT CHROMIUM CONCENTRATION (mg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT WELL BACKGROUND COMPLIANCE W ELL DOWNGRADIENT COMPLIANCE WELL MONITORING W ELL &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( !( &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRSTATE RD 1997 H I N E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 22 1ASTATERD 1993DUKE POWER RD CCPMW-3SNA CCPTW-1SNA CCPMW-6SNA U5-6SNM GWA-4S68 AB-3SL*0.24 IB-2AL34.3 U5-7SL*133 AB-1S52.5 IB-2I15.8 10.65 1 0.6 5 10.6510.6510.6510.65CLMW-4<0.5 GWA-20S11.5 GWA-35S18 IB-2S-SL*0.2 j IB-3S0.8 MW-32S0.98 MW-42S0.9 AB-3S*0.44 AB-4S*0.086 j AB-5S*0.16 BG-1S0.88 CCPMW-1S1.1 CLM W-12.3 CLM W-3S36.7 CLM W-5S45.3 CLM W-612.4 GWA-21S10.7 GWA-22S2.7 GWA-24S10.4 GWA-25S2.4 GWA-26S0.74 GWA-30S3.2 GWA-34S0.38 GWA-38S3.8 GWA-43S1.3 GWA-44S0.22 IB-1S*7.9 IB-4S-SL*6.3 MW-8S3.8 MW-30S0.72 MW-36S0.11 U5-3SA15.1 U5-4S1.1 U5-7S*0.11 U5-8S0.91 CCR-CCP-3S1.1 CCR-CCP-6S0.98 CCR-CCP-15S1.9 CCR-U5-8S38.4 CCR-U5-9S3 CCR-7S3.2 CCR-CCP-9S0.18 CCR-CCP-10S19.9 CLM W-212.3 GWA-12S0.053 j CCR-11S0.44 AB-2S36.2 AB-4SL*0.11 AS-2S15.8 AS-5S0.25 AS-6S0.8 CCR-12S16.9 CCR-IB-1S2.4 CCR-IB-3S4.7 GWA-5S3.4 GWA-45S16.5 MW-10S1.8 MW-11S1.9 MW-34S1.7 U5-1S5.2 CCR-6S137 CCR-U5-4S159 CCR-U5-6S40.8 AB-6S*0.16 GWA-10S10.3 GWA-14S4.2 GWA-33S19.2 MW-38S4 CCR-16S117 CCR-CCP-12S5 CCR-U5-3S0.8 MW-23S0.97 CCR-U5-10S2.5 AB-3I0.27 AS-1SB18.5 AS-7S*2 GWA-2S0.23 GWA-11S1.1 GWA-36S196 GWA-37S103 MW-40S0.71 CCR-CCP-5S1.7 CCPMW-2SNA AS-4SNA CCPTW-2NA GWA-6SNM U5-2S-SLA*NM NOTES: THE INTE RIM MAXIMUM AL LOWABLE C ONCENTRATION (IMAC) FORCOBALT IS 1 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 10.65 µg/L. *ASH P ORE WATER WELL DATA ARE DISPLAYED WITH THE SHALLOWFLOW L AYER; HOWEVER , PORE WATER IS CONSIDEREDWASTEWATER A ND GROUN DWATER STANDARDS ARE NOTAPPLICABLE. THE PORE WATER RE SULTS HAVE BEEN USED TOASSIST IN INFE RRING ISOCONCENTRATION CONTOURS. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-16ISOCONCENTRATION MAP -COBALT IN SHALL OW GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Shallow.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS COBALT CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT IMAC CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &<&< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( &< &<&< &< &< &< &< !( &< &<&< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< !( &< &< &< &< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRST A TE R D 1997 H IN E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 221ASTATERD 1993DUKE POWER RD 5.15.15.15.15 .15.1CCPMW-2DNA CCPMW-3DNA CCPTW-1DNA MW-2DNM MW-42DNM GWA-4D85.4 U5-6D36 AS-5BRU0.11GWA-3D4 GWA-20D81.3 GWA-22BRU0.051 j GWA-35D0.37 IB-3D2.6 MW-4D<0.5 MW-20D1.8 MW-23D0.24 MW-32D2.3 CCR-8D225 CCR-CCP-13D6 CCR-U5-4D80.7 AS-7D0.32 BG-1D0.7 CCR-13D3.6 CLM W-3D0.21 GWA-1BRU0.46 GWA-23D0.73 GWA-24D0.2GWA-27DA0.79 GWA-44D0.64 GWA-47D1.5 IB-1D<1 IB-2BRU<0.5 MW-8D4.9 MW-21D0.73 MW-24D0.11 MW-30D0.046 j MW-34BRU0.12 MW-36BRU0.15 U5-2D6.6 U5-3D7.7 U5-4D0.25 U5-5D94.1 U5-8D0.18 CCR-CCP-2D0.093 j CCR-CCP-4D7.2 CCR-CCP-6D0.12 CCR-CCP-7D0.82 CCR-CCP-11D0.025 j CCR-CCP-14D0.093 j CCR-U5-1D1.3 CCR-U5-2D0.69 CCR-U5-8D225 U5-7D11.6 GWA-21BRU0.72 MW-10D2 CCR-11D1.9 AB-1D0.79 AB-2D7.1 AB-4D5.5 AB-5BRU4.1 AB-6D0.92 AS-2D0.43 AS-4D0.44 AS-6D0.06 j BG-2D<1 CCR-12D17 CCR-15D3.7 CCR-IB-3D0.018 j GWA-5BRU0.083 j GWA-31D0.58 MW-40BRU0.021 j U5-1D0.32 CCR-4D0.8 CCR-14D1.7 CCR-16D0.57 CCR-CCP-12D0.33 CCR-U5-5D20.1 CCR-U5-6D96.2 GWA-10D3.5 GWA-14D0.47 GWA-33D0.56 MW-38D2.7 CCR-U5-3D2.8 GWA-12BRU2.6 GWA-27D0.69 GWA-28BRU5.2 GWA-29D0.64 IB-4D0.2 j CCR-5D10.4CCR-6D4.9CCR-7D0.084 j CCR-U5-10D1.3 AS-1D0.52 AS-3BRU0.13 CCR-IB-1D0.23 GWA-11BRU0.13 GWA-36D40.9 GWA-37D1.4 CCR-CCP-5D1.9 GWA-38DNA AB-3BRUANM GWA-25DNM GWA-26DNM GWA-30BRUNM AB-3BRUNM GWA-6DNM NOTES: THE INTE RIM MAXIMUM AL LOWABLE C ONCENTRATION (IMAC) FORCOBALT IS 1 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 5.1 µg/L. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-17ISOCONCENTRATION MAP -COBALT IN DEE P GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Deep.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS COBALT CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT IMAC CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &<&< &< !( &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< ACTIVEASH BASIN ASHSTORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BR OAD RIVER B R O A D R IV E R SUCK CREEKFO X DEN DRH O L L Y W O O D D R V I N E W O O D D R OSPREY LNSTATE R D 1186 MOSTELLAR RD STATERD 1211 MO UNTPLEASANTCHURCH RD FOX PLMCCOMBS RDSTATE RD 1189STATE RD 1193STATE RD 1209PROSPECT CHURCH RDSTATERD 1210BARNS RDS T A T E R D 1 2 0 7WOOD RDSTATERD 2503RIVER FRONT DRP R O S P E C T C H U R C H R D W H E LC H E L R DST ATERD 1192LA K E H O U S E R R D MCCRAW RD STATE RD 1002STATE RD 1209STATE RD 1995 WESTON DRSTATE RD 1997 S T A T E R D 1 9 9 4PLOTAST DROLDFIELD RDLIVERETTTRLB A N D B T R L LIONEL STWATERLOO RDCAMEO DR H IN E S R DSTATERD 2102 STATERD 1995GREEN ACRES RDCOBB RDSTATE RD 2100 STATERD 2117 F ER RY R D HI NES RD S T A T E R D 2 1 0 2 STATE RD 2101 BALLENGER RD STATE RD 1978DUKE POWER RDDYSART RDSTATE RD 2109ISLAND FORD RDSTATE RD 1976CHESTERFIELD RD KIRBY RD OLD USHWY 221ASTATE RD 1993US HWY 221 ALTU5-4BRNM 1.4971.497C-1001:C2801Riverfront0.18 GWA-28BR0.1 GWA-31BR0.15 C1Well2<0.5 C-1002: 2901Fox Place0.46 CCR-CCP-15D0.025 j GWA-24BR0.2 MW-25DR0.81 C1 Well 3<5 C10<0.5 C4 Well 3<5 C5<0.5 AB-4BR0.065 j AB-5BR2AB-6BR0.015 j BG-1BR0.07 j CCPMW-1D0.35 GWA-14BR0.061 j GWA-27BR0.16 GWA-44BR2.3 MW-2DA1.7 MW-24DR<0.1 U5-2BR30.1 CCR-CCP-1D2.1 C15<5 C16<5 C17<5 C19<5 C24<0.5 C7<0.5 GWA-20BR0.32 CCR-CCP-10DA0.96 GWA-13BR0.071 j MW-22DR2.6 CCR-CCP-11BR0.025 j AS-2BR0.055 j AS-5BR0.031 j GWA-30BR0.032 j GWA-31BRA0.15 MW-20DR<0.1 M1,R1 MW-21BR0.056 j MW-32BR0.025 j MW-38BR1.2 CCR-3BR0.65 CCR-CCP-3DA0.58 C-1004: C2800Riverfront<0.1 C-1006: 2910Fox Place<0.1 C-1007: 433Dysart Place<0.1 C11<0.5 C23<0.5 C25<0.5 C26<0.5 C31.2 C80.72 C8 Sp ring1.6 C9A<0.5 GWA-21BR0.84GWA-29BRA0.16 GWA-48BR0.04 j IB-4BR<0.5 AS-6BRA0.23 MW-23DR0.013 j CCR-CCP-9D2.5 C24-1<0.5 C9B<0.5 GWA-33BR0.021 j+ CCPMW-4NM CCPMW-5NM GWA-2BRNM C2968RiverfrontNA CCPMW-6DNA GWA-32BRNA C105DownriverNA AS-7BRNM GWA-29BRNM U5-5BRNM U5-8BRNM NOTES: THE INTE RIM MAXIMUM AL LOWABLE C ONCENTRATION (IMAC) FORCOBALT IS 1 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 1.497 µg/L. † CON CENTRATION GREATER THAN C URRENT SITE SPECIFIC PBTVBUT WITHIN THE BACKGR OUND CONCENTRATION RANGE FORSIMILAR PIEDMONT GE OLOGIC SET TINGS. DUE TO GROUNDWATERFLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS,CONCENTRATION DOES NOT SUGGE ST IMPACT FROM THE ASH BASIN. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. NM = NOT MEASU RED; NA = NOT AVAILABLE; ND = NON-DETECT. PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). WATER SUPPLY WE LL SAMPL ED BY NCDEQ BETWEEN MARCH 2015AND S EPTEMBER 2015. FIG URE 11-18ISOCONCENTRATION MAP -COBALT IN BEDR OCK GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/26/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Bedrock.mxd 700 0 700 1,400350 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS WATER SUPPLY WELL ABANDONED WELL!( COBALT CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT IMAC CONTOUR PBTV CONTOUR ASSESSMENT WELL BACKGROUND COMPLIANCE W ELL DOWNGRADIENT COMPLIANCE WELL MONITORING W ELL &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( !( &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRSTATE RD 1997 H I N E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 22 1ASTATERD 1993DUKE POWER RD CCR-U5-10SNM CCR-U5-3SNM CCR-CCP-5SNM CCR-11SNM CCR-CCP-9SNM CCR-CCP-10SNM U5-6SNM AB-3SL*93 IB-2AL390 IB-2I200 j+ MW-8S1140 684684 684684 684CLMW-462200 GWA-20S2580 GWA-35S9800 IB-2S-SL*3900 IB-3S571 MW-32S<50 MW-42S479 AB-3S*624 AB-4S*73.8 AB-5S*1550 BG-1S<50 CCPMW-1S<50 CCPMW-2S174 CLMW-152.4 CLM W-3S38.5 j CLM W-5S415 CLMW-6169 GWA-21S4250 GWA-22S837 GWA-24S45.1 j GWA-25S84.9 GWA-26S64.2 GWA-30S165 GWA-34S346 GWA-38S408 GWA-43S583 GWA-44S331 IB-1S*7490 IB-4S-SL*11000 MW-30S70.4 M1 MW-36S289 U5-3SA616 U5-4S64.3 U5-7S*27300 U5-8S12000 CCPMW-6S381 CLM W-2147 GWA-12S<50 AB-1S1080 AB-2S10600 AB-4SL*106 AS-2S<250 D3 AS-5S305 AS-6S279 CCPTW-2532 CCR-12S188 CCR-IB-1S2930 CCR-IB-3S441 GWA-5S158 GWA-45S140 MW-10S51.7 MW-11S155 MW-34S91.9 U5-1S<500 AB-6S*474 GWA-10S219 GWA-14S1290 GWA-33S6550 MW-38S243 CCPMW-3S62 MW-23S470 U5-7SL*81300 AB-3I64.5 AS-1SB<500 D3 AS-7S*42300 CCPTW-1S293 GWA-2S112 GWA-4S19100 GWA-11S435 GWA-36S4660 GWA-37S15900 MW-40S458 CCR-CCP-3SNM CCR-CCP-6SNM CCR-CCP-15SNM CCR-U5-8SNM CCR-U5-9SNM AS-4SNA CCR-6SNM CCR-U5-4SNM CCR-U5-6SNM GWA-6SNM U5-2S-SLA*NM CCR-16SNM CCR-CCP-12SNM NOTES: THE NORTH CAR OLIN A 2 L FOR IRON IS 300 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 684 µg/L. *ASH P ORE WATER WELL DATA ARE DISPLAYED WITH THE SHALLOWFLOW L AYER; HOWEVER , PORE WATER IS CONSIDEREDWASTEWATER A ND GROUN DWATER STANDARDS ARE NOTAPPLICABLE. THE PORE WATER RE SULTS HAVE BEEN USED TOASSIST IN INFE RRING ISOCONCENTRATION CONTOURS. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-19ISOCONCENTRATION MAP -IRO N IN S HALLO W GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Shallow.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS IRON CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &<&< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( &< &<&< &< &< &< &< !( &< &<&< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< !( &< &< &< &< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRST A TE R D 1997 H IN E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 221ASTATERD 1993DUKE POWER RD 515515 5155 1 5 515CCR-5DNM CCR-6DNMCCR-7DNM CCR-U5-10DNM CCR-CCP-5DNM CCR-11DNM MW-2DNM CCR-8DNM CCR-CCP-13DNM CCR-U5-4DNM MW-42DNM U5-6D18000 M1 AS-5BRU87.9GWA-3D106 GWA-20D1530 GWA-22BRU62.1 GWA-35D4080 IB-3D15200 MW-4D7700 MW-20D8480 MW-23D1190 MW-32D<50 AS-7D245 BG-1D<50 CCR-13D<50 CLM W-3D261 GWA-1BRU2210 GWA-23D<50 GWA-24D<50GWA-27DA308 GWA-44D568 GWA-47D214 IB-1D<50 IB-2BRU190 j+ MW-8D33400 M1 MW-21D105 MW-24D<50 MW-30D<50 MW-34BRU1030 MW-36BRU213 U5-2D39300 U5-3D237 U5-4D226 U5-5D4130 U5-8D179 U5-7D620 j- GWA-21BRU36.5 j MW-10D96.9 AB-1D8100 AB-2D22900 AB-4D<50 AB-5BRU57.4 AB-6D<50 AS-2D440 AS-4D45.5 j AS-6D<50 BG-2D76 CCR-12D8690 CCR-15D<50 CCR-IB-3D<50 GWA-5BRU345 GWA-31D123 MW-40BRU<50 U5-1D198 GWA-10D<50 GWA-14D31.3 j GWA-33D703 MW-38D316 CCPMW-2D3.36 CCPMW-3D13.4 GWA-12BRU657 GWA-27D<50 GWA-28BRU8980 GWA-29D83.2 IB-4D2900 AS-1D117 AS-3BRU36.1 j CCPTW-1D123 CCR-IB-1D1770 GWA-4D16600 GWA-11BRU520 GWA-36D2100 GWA-37D458 GWA-38DNA CCR-CCP-2DNM CCR-CCP-4DNM CCR-CCP-6DNM CCR-CCP-7DNM CCR-CCP-11DNM CCR-CCP-14DNM CCR-U5-1DNM CCR-U5-2DNM CCR-U5-8DNM AB-3BRUANM GWA-25DNM GWA-26DNM GWA-30BRUNM CCR-4DNM CCR-14DNM CCR-16DNM CCR-CCP-12DNM CCR-U5-5DNM CCR-U5-6DNM AB-3BRUNM GWA-6DNM CCR-U5-3DNM NOTES: THE NORTH CAR OLIN A 2 L FOR IRON IS 300 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 515 µg/L. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-20ISOCONCENTRATION MAP -IRON IN DEE P GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Deep.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS IRON CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &<&< &< !( &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< ACTIVEASH BASIN ASHSTORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BR OAD RIVER B R O A D R IV E R SUCK CREEKFO X DEN DRH O L L Y W O O D D R V I N E W O O D D R OSPREY LNSTATE R D 1186 MOSTELLAR RD STATERD 1211 MO UNTPLEASANTCHURCH RD FOX PLMCCOMBS RDSTATE RD 1189STATE RD 1193STATE RD 1209PROSPECT CHURCH RDSTATERD 1210BARNS RDS T A T E R D 1 2 0 7WOOD RDSTATERD 2503RIVER FRONT DRP R O S P E C T C H U R C H R D W H E LC H E L R DST ATERD 1192LA K E H O U S E R R D MCCRAW RD STATE RD 1002STATE RD 1209STATE RD 1995 WESTON DRSTATE RD 1997 S T A T E R D 1 9 9 4PLOTAST DROLDFIELD RDLIVERETTTRLB A N D B T R L LIONEL STWATERLOO RDCAMEO DR H IN E S R DSTATERD 2102 STATERD 1995GREEN ACRES RDCOBB RDSTATE RD 2100 STATERD 2117 F ER RY R D HI NES RD S T A T E R D 2 1 0 2 STATE RD 2101 BALLENGER RD STATE RD 1978DUKE POWER RDDYSART RDSTATE RD 2109ISLAND FORD RDSTATE RD 1976CHESTERFIELD RD KIRBY RD OLD USHWY 221ASTATE RD 1993US HWY 221 ALTCCR-CCP-9DNM CCR-CCP-15DNM CCR-3BRNM 6 22 0 C-1001:C2801Riverfront289 GWA-28BR5640 GWA-31BR<50 C1Well2218 C-1002: 2901Fox Place2970 GWA-24BR<50 MW-25DR<50 C1 Well 3210 C10<50 C2968Riverfront790 C4 Well 33200 C5<50 AB-4BR12100 AB-5BR<50AB-6BR4300 BG-1BR185 CCPMW-1D<50 GWA-14BR<50 GWA-27BR1400 GWA-44BR1220 j MW-2DA483 MW-24DR1180 U5-2BR5810 C152200 C16380 C173200 C19240 C24<50 C7<50 GWA-20BR6750 GWA-13BR4760 MW-22DR1080 AS-2BR164 AS-5BR<50 CCPMW-6D3.43 j GWA-30BR7370 GWA-31BRA<50 MW-20DR156 MW-21BR<50 MW-32BR4490 MW-38BR2560 C-1004: C2800Riverfront<50 C-1006: 2910Fox Place81.6 C-1007: 433Dysart Place453 C105Downriver320 C11<50 C23110 C25<50 C2652.5 C3<50 C857.3 C8 Sp ring<50 C9A<50 GWA-21BR3560GWA-29BRA225 GWA-48BR2100 IB-4BR2600 AS-6BRA78.8 MW-23DR634 C24-1<50 C9B749 GWA-33BR424 j+ CCR-CCP-10DANM CCR-CCP-1DNM CCPMW-4NM CCPMW-5NM GWA-2BRNM U5-4BRNM GWA-32BRNA CCR-CCP-3DANM CCR-CCP-11BRNM AS-7BRNM GWA-29BRNM U5-5BRNM U5-8BRNM NOTES: THE NORTH CAR OLIN A 2 L FOR IRON IS 300 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 6,220 µg/L. † CON CENTRATION GREATER THAN C URRENT SITE SPECIFIC PBTVBUT WITHIN THE BACKGR OUND CONCENTRATION RANGE FORSIMILAR PIEDMONT GE OLOGIC SET TINGS. DUE TO GROUNDWATERFLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS,CONCENTRATION DOES NOT SUGGE ST IMPACT FROM THE ASH BASIN. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. NM = NOT MEASU RED; NA = NOT AVAILABLE; ND = NON-DETECT. PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). WATER SUPPLY WE LL SAMPL ED BY NCDEQ BETWEEN MARCH 2015AND S EPTEMBER 2015. FIG URE 11-21ISOCONCENTRATION MAP -IRO N IN BE DRO CK G ROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/26/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Bedrock.mxd 700 0 700 1,400350 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS WATER SUPPLY WELL ABANDONED WELL!( IRON CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT WELL BACKGROUND COMPLIANCE W ELL DOWNGRADIENT COMPLIANCE WELL MONITORING W ELL &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( !( &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRSTATE RD 1997 H I N E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 22 1ASTATERD 1993DUKE POWER RD CCR-U5-10SNM CCR-CCP-5SNM CCR-11SNM CCR-CCP-9SNM CCR-CCP-10SNM U5-6SNM AB-3SL*29.6 IB-2AL1300 AB-1S5350 IB-2I1500 168.8 168.8 168.81 6 8 .8 168.81 6 8.8168.81 6 8 . 8 CLMW-4480 GWA-20S1570 GWA-35S1660 IB-2S-SL*1000 IB-3S20800 MW-32S44.9 MW-42S19.5 AB-3S*356 AB-4S*3.7 j AB-5S*434 BG-1S14.9 CCPMW-1S15.8 CCPMW-2S12.7 CLM W-1206 CLM W-3S1800 CLM W-5S3570 CLMW-6178 GWA-21S279 GWA-22S52.3 GWA-24S75.4 GWA-25S32.7 GWA-26S17.4 GWA-30S177 GWA-34S70.9 GWA-38S452 GWA-43S32.6 GWA-44S14 IB-1S*2420 IB-4S-SL*870 MW-8S3740 MW-30S14.2 MW-36S104 U5-3SA1280 U5-4S24.4 U5-7S*845 U5-8S3660 CCPMW-6S795 CLM W-21130 GWA-12S2.5 j AB-2S9590 AB-4SL*11.3 AS-2S10600 AS-5S21.6 AS-6S161 CCPTW-213.1 CCR-12S3520 CCR-IB-1S1920 CCR-IB-3S10.7 GWA-5S615 GWA-45S480 MW-10S189 MW-11S2140 MW-34S26.8 U5-1S<50 AB-6S*81.4 GWA-10S1410 GWA-14S92.3 GWA-33S634 MW-38S397 CCPMW-3S53.6 MW-23S73.2 U5-7SL*2860 AB-3I132 AS-1SB1070 AS-7S*15400 CCPTW-1S14.3 GWA-2S199 GWA-4S2100 GWA-11S2130 GWA-36S2500 GWA-37S8700 MW-40S26.2 CCR-CCP-3SNM CCR-CCP-6SNM CCR-CCP-15SNM CCR-U5-8SNM CCR-U5-9SNM AS-4SNA CCR-6SNM CCR-U5-4SNM CCR-U5-6SNM GWA-6SNM U5-2S-SLA*NM CCR-16SNM CCR-CCP-12SNM CCR-U5-3SNM NOTES: THE NORTH CAR OLIN A 2 L FOR MANGANESE IS 50 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 168.8 µg/L. *ASH P ORE WATER WELL DATA ARE DISPLAYED WITH THE SHALLOWFLOW L AYER; HOWEVER , PORE WATER IS CONSIDEREDWASTEWATER A ND GROUN DWATER STANDARDS ARE NOTAPPLICABLE. THE PORE WATER RE SULTS HAVE BEEN USED TOASSIST IN INFE RRING ISOCONCENTRATION CONTOURS. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-22ISOCONCENTRATION MAP -MANGANES E IN SHA LLOW GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Shallow.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS MANGANESE CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &<&< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( &< &<&< &< &< &< &< !( &< &<&< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< !( &< &< &< &< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRST A TE R D 1997 H IN E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 221ASTATERD 1993DUKE POWER RD 78.3178.3178.3178.31 78.3178.31 CCR-5DNM CCR-6DNMCCR-7DNM CCR-U5-10DNM CCR-CCP-5DNM CCR-11DNM CCR-16DNM MW-2DNM CCR-8DNM CCR-CCP-13DNM CCR-U5-4DNM MW-42DNM AS-5BRU16.9GWA-3D1470 GWA-20D5990 GWA-22BRU21 GWA-35D112 IB-3D6060 MW-4D230 MW-20D346 MW-23D831 MW-32D14.4 AS-7D1880 BG-1D16.1 CCR-13D49.9 CLM W-3D34 GWA-1BRU87.4 GWA-23D9.2 GWA-24D6.7GWA-27DA1240 GWA-44D245 GWA-47D288 IB-1D6 IB-2BRU99 MW-8D5360 M1 MW-21D9.8 MW-24D4.6 j MW-30D6.2 MW-34BRU39 MW-36BRU51 U5-2D1180 U5-3D1190 U5-4D11.1 U5-5D4930 U5-8D26.5 U5-7D1100 j- GWA-21BRU132 MW-10D85.4 U5-6D1820 M1 AB-1D2460 AB-2D3580 AB-4D154 AB-5BRU231 AB-6D36.2 AS-2D508 AS-4D25.5 AS-6D7.7 BG-2D7 CCR-12D1970 CCR-15D114 CCR-IB-3D<5 GWA-5BRU217 GWA-31D23 MW-40BRU25.5 U5-1D174 GWA-10D170 GWA-14D12.2 GWA-33D122 MW-38D547 CCPMW-2D0.532 CCPMW-3D6.61 GWA-12BRU43.4 GWA-27D1430 GWA-28BRU60.6 GWA-29D8.2 IB-4D160 AS-1D311 AS-3BRU5.7 CCPTW-1D13.7 CCR-IB-1D80 GWA-4D4620 GWA-11BRU857 GWA-36D4370 GWA-37D65.3 GWA-38DNA CCR-CCP-2DNM CCR-CCP-4DNM CCR-CCP-6DNM CCR-CCP-7DNM CCR-CCP-11DNM CCR-CCP-14DNM CCR-U5-1DNM CCR-U5-2DNM CCR-U5-8DNM AB-3BRUANM GWA-25DNM GWA-26DNM GWA-30BRUNM CCR-4DNM CCR-14DNM CCR-CCP-12DNM CCR-U5-5DNM CCR-U5-6DNM AB-3BRUNM GWA-6DNM CCR-U5-3DNM NOTES: THE NORTH CAR OLIN A 2 L FOR MANGANESE IS 50 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 78.31 µg/L. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-23ISOCONCENTRATION MAP -MANGANES E IN DEEP GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Deep.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS MANGANESE CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &<&< &< !( &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< ACTIVEASH BASIN ASHSTORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BR OAD RIVER B R O A D R IV E R SUCK CREEKFO X DEN DRH O L L Y W O O D D R V I N E W O O D D R OSPREY LNSTATE R D 1186 MOSTELLAR RD STATERD 1211 MO UNTPLEASANTCHURCH RD FOX PLMCCOMBS RDSTATE RD 1189STATE RD 1193STATE RD 1209PROSPECT CHURCH RDSTATERD 1210BARNS RDS T A T E R D 1 2 0 7WOOD RDSTATERD 2503RIVER FRONT DRP R O S P E C T C H U R C H R D W H E LC H E L R DST ATERD 1192LA K E H O U S E R R D MCCRAW RD STATE RD 1002STATE RD 1209STATE RD 1995 WESTON DRSTATE RD 1997 S T A T E R D 1 9 9 4PLOTAST DROLDFIELD RDLIVERETTTRLB A N D B T R L LIONEL STWATERLOO RDCAMEO DR H IN E S R DSTATERD 2102 STATERD 1995GREEN ACRES RDCOBB RDSTATE RD 2100 STATERD 2117 F ER RY R D HI NES RD S T A T E R D 2 1 0 2 STATE RD 2101 BALLENGER RD STATE RD 1978DUKE POWER RDDYSART RDSTATE RD 2109ISLAND FORD RDSTATE RD 1976CHESTERFIELD RD KIRBY RD OLD USHWY 221ASTATE RD 1993US HWY 221 ALTCCR-CCP-9DNM CCR-CCP-15DNM CCR-3BRNM U5-4BRNM 89.489.48 9 .4 89.4 C-1001:C2801Riverfront1.67 GWA-28BR95.4 GWA-31BR4.1 j C1Well21.67 C-1002: 2901FoxPlace1.8 IB-4BR170 GWA-24BR5 j MW-25DR18.4 C1 Well 32 C101.75 C2968Riverfront2 C4 Well 31.3 C52.34 AB-4BR173 AB-5BR132AB-6BR63.2 BG-1BR18.7 CCPMW-1D7.6 GWA-14BR118 GWA-27BR50.3 GWA-44BR602 j MW-2DA1100 MW-24DR51 U5-2BR6440 C157.6 C162.1 C178.2 C191.9 C241.96 C72.75 GWA-20BR467 GWA-13BR207 MW-22DR89.5 AS-2BR239 AS-5BR6.4 CCPMW-6D146 GWA-30BR67 GWA-31BRA4.1 j MW-20DR561 MW-21BR26.4 MW-32BR28.8 MW-38BR256 C-1004: C2800Riverfront1.28 C-1006: 2910Fox Place3.65 C-1007: 433Dysart Place1.55 C11<0.05 C235.1 C251.01 C260.81 C31.34 C84.67 C8 Sp ring1.95 C9A0.739 GWA-21BR391GWA-29BRA101 GWA-48BR61.6 AS-6BRA12.4 MW-23DR51.9 C24-11.76 C9B1.72 GWA-33BR200 CCR-CCP-10DANM CCR-CCP-1DNM CCPMW-4NM CCPMW-5NM GWA-2BRNM GWA-32BRNA CCR-CCP-3DANM C105DownriverNA CCR-CCP-11BRNM AS-7BRNM GWA-29BRNM U5-5BRNM U5-8BRNM NOTES: THE NORTH CAR OLIN A 2 L FOR MANGANESE IS 50 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 89.4 µg/L. † CON CENTRATION GREATER THAN C URRENT SITE SPECIFIC PBTVBUT WITHIN THE BACKGR OUND CONCENTRATION RANGE FORSIMILAR PIEDMONT GE OLOGIC SET TINGS. DUE TO GROUNDWATERFLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS,CONCENTRATION DOES NOT SUGGE ST IMPACT FROM THE ASH BASIN. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. NM = NOT MEASU RED; NA = NOT AVAILABLE; ND = NON-DETECT. PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). WATER SUPPLY WE LL SAMPL ED BY NCDEQ BETWEEN MARCH 2015AND S EPTEMBER 2015. FIG URE 11-24ISOCONCENTRATION MAP -MANGANES E IN BED ROCK GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/26/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Bedrock.mxd 700 0 700 1,400350 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS WATER SUPPLY WELL ABANDONED WELL!( MANGANESE CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT WELL BACKGROUND COMPLIANCE W ELL DOWNGRADIENT COMPLIANCE WELL MONITORING W ELL &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( !( &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRSTATE RD 1997 H I N E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 22 1ASTATERD 1993DUKE POWER RD CCPMW-3SNA CCR-U5-10SNM CCPTW-1SNA CCR-CCP-5SNM CCPMW-6SNA CCR-11SNM CCR-CCP-9SNM CCR-CCP-10SNM U5-6SNM IB-2AL430 AB-1S23.1 IB-2I270 36.73 36.7336.7336.73 36.733 6.7 3 CLMW-4120 GWA-20S96 GWA-35S49.5 IB-2S-SL*980 IB-3S24 MW-32S36.3 MW-42S40.7 AB-3S*60 AB-4S*998 AB-5S*2650 BG-1S15.4 CLMW-1978 CLM W-3S37.5 CLM W-5S23 CLMW-617 GWA-21S121 GWA-22S66.4 GWA-24S14.2 GWA-25S23.1 GWA-26S4.2 j GWA-30S26.1 GWA-34S13.6 GWA-38S106 GWA-43S157 GWA-44S177 IB-1S*946 IB-4S-SL*2200 MW-8S171 MW-30S12.1 M1 MW-36S71.1 U5-3SA74.4 U5-4S10.6 U5-7S*1000 U5-8S203 CLM W-282.1 GWA-12S16.2 AB-2S31 AB-4SL*1760 AS-2S214 AS-5S7.1 AS-6S11.6 CCR-12S78.2 CCR-IB-1S386 CCR-IB-3S23.8 GWA-5S163 GWA-45S50 MW-10S59.2 MW-11S38.3 MW-34S9.5 U5-1S108 AB-6S*1210 GWA-10S217 GWA-14S151 GWA-33S162 MW-38S81.6 AB-3SL*950 MW-23S192 U5-7SL*1120 AS-1SB102 AS-7S*3070 GWA-2S120 GWA-4S622 GWA-11S532 GWA-36S389 GWA-37S74.1 CCPMW-1SNA CCPMW-2SNA CCR-CCP-3SNM CCR-CCP-6SNM CCR-CCP-15SNM CCR-U5-8SNM CCR-U5-9SNM AS-4SNA CCPTW-2NA CCR-6SNM CCR-U5-4SNM CCR-U5-6SNM GWA-6SNM U5-2S-SLA*NM CCR-16SNM CCR-CCP-12SNM CCR-U5-3SNM NOTES: NO NORTH CAROLINA 2L OR INTERIM MAXIMUM ALLOWABLECONCENTRATION ESTABLISHED FOR STRONTIUM. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 36.73 µg/L. *ASH P ORE WATER WELL DATA ARE DISPLAYED WITH THE SHALLOWFLOW L AYER; HOWEVER , PORE WATER IS CONSIDEREDWASTEWATER A ND GROUN DWATER STANDARDS ARE NOTAPPLICABLE. THE PORE WATER RE SULTS HAVE BEEN USED TOASSIST IN INFE RRING ISOCONCENTRATION CONTOURS. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-25ISOCONCENTRATION MAP -STRONTIUM IN SHALLOW GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Shallow.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS STRONTIUM CONCENTRATION (µg/L) NOT DETECTED ABOVE REPORTING LIMIT STANDARD CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &<&< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( &< &<&< &< &< &< &< !( &< &<&< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< !( &< &< &< &< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRST A TE R D 1997 H IN E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 221ASTATERD 1993DUKE POWER RD 56.14 5 6 .1 4 56.1456.14CCPMW-2DNA CCPMW-3DNA CCR-5DNM CCR-6DNMCCR-7DNM CCR-U5-10DNM CCPTW-1DNA CCR-CCP-5DNM CCR-11DNM MW-2DNM CCR-8DNM CCR-CCP-13DNM CCR-U5-4DNM MW-42DNM AS-5BRU23.2GWA-3D248 GWA-20D488 GWA-22BRU133 GWA-35D106 IB-3D199 MW-4D190 MW-20D154 MW-23D359 MW-32D40.7 AS-7D311 BG-1D30.7 CCR-13D13.9 CLM W-3D299 GWA-1BRU45.8 GWA-23D16.8 GWA-24D22.7GWA-27DA110 GWA-44D275 GWA-47D85.9 IB-1D128 IB-2BRU190 MW-8D106 MW-21D18.8 MW-24D23.7 MW-30D68 MW-34BRU58.9 MW-36BRU76.1 U5-2D1280 U5-3D69.1 U5-4D45.1 U5-5D266 U5-8D41.3 U5-7D520 j- GWA-21BRU145 MW-10D38.3 U5-6D476 M1 AB-1D213 AB-2D283 AB-4D8.7 AB-5BRU51.8 AB-6D29.9 AS-2D434 AS-4D55.9 AS-6D28 BG-2D35 CCR-12D69.2 CCR-15D9.5 CCR-IB-3D273 GWA-5BRU220 GWA-31D545 MW-40BRU163 U5-1D106 GWA-10D150 GWA-14D263 GWA-33D172 MW-38D220 GWA-12BRU45.7 M1 GWA-27D116 GWA-28BRU47.3 GWA-29D38.6 IB-4D120 AS-1D188 AS-3BRU21.6 CCR-IB-1D66.6 GWA-4D472 GWA-11BRU326 GWA-36D339 GWA-37D569 GWA-38DNA CCR-CCP-2DNM CCR-CCP-4DNM CCR-CCP-6DNM CCR-CCP-7DNM CCR-CCP-11DNM CCR-CCP-14DNM CCR-U5-1DNM CCR-U5-2DNM CCR-U5-8DNM AB-3BRUANM GWA-25DNM GWA-26DNM GWA-30BRUNM CCR-4DNM CCR-14DNM CCR-16DNM CCR-CCP-12DNM CCR-U5-5DNM CCR-U5-6DNM AB-3BRUNM GWA-6DNM CCR-U5-3DNM NOTES: NO NORTH CAROLINA 2L OR INTERIM MAXIMUM ALLOWABLECONCENTRATION ESTABLISHED FOR STRONTIUM. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 56.14 µg/L. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-26ISOCONCENTRATION MAP -STRONTIUM IN DEE P GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Deep.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS STRONTIUM CONCENTRATION (µg/L) NOT DETECTED ABOVE REPORTING LIMIT STANDARD CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &<&< &< !( &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< ACTIVEASH BASIN ASHSTORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BR OAD RIVER B R O A D R IV E R SUCK CREEKFO X DEN DRH O L L Y W O O D D R V I N E W O O D D R OSPREY LNSTATE R D 1186 MOSTELLAR RD STATERD 1211 MO UNTPLEASANTCHURCH RD FOX PLMCCOMBS RDSTATE RD 1189STATE RD 1193STATE RD 1209PROSPECT CHURCH RDSTATERD 1210BARNS RDS T A T E R D 1 2 0 7WOOD RDSTATERD 2503RIVER FRONT DRP R O S P E C T C H U R C H R D W H E LC H E L R DST ATERD 1192LA K E H O U S E R R D MCCRAW RD STATE RD 1002STATE RD 1209STATE RD 1995 WESTON DRSTATE RD 1997 S T A T E R D 1 9 9 4PLOTAST DROLDFIELD RDLIVERETTTRLB A N D B T R L LIONEL STWATERLOO RDCAMEO DR H IN E S R DSTATERD 2102 STATERD 1995GREEN ACRES RDCOBB RDSTATE RD 2100 STATERD 2117 F ER RY R D HI NES RD S T A T E R D 2 1 0 2 STATE RD 2101 BALLENGER RD STATE RD 1978DUKE POWER RDDYSART RDSTATE RD 2109ISLAND FORD RDSTATE RD 1976CHESTERFIELD RD KIRBY RD OLD USHWY 221ASTATE RD 1993US HWY 221 ALTCCR-CCP-9DNM CCR-CCP-15DNM CCR-3BRNM U5-4BRNM 1 0 7 .1 107.1107.1C-1001:C2801Riverfront36.3 GWA-28BR92.6 GWA-31BR87.4 C1Well250.1 C-1002: 2901Fox Place30.1 GWA-24BR29.4 MW-25DR87.7 C1 Well 348 C1038.2 C4 Well 324 C520.2 AB-4BR79.2 AB-5BR29.9AB-6BR104 BG-1BR125 CCPMW-1D21.6 GWA-14BR115 GWA-27BR187 GWA-44BR327 j MW-2DA96 MW-24DR74.2 U5-2BR367 C15140 C1630 C1781 C1933 C2460.8 C760.6 GWA-20BR656 GWA-13BR137 MW-22DR30.9 AS-2BR273 AS-5BR54.7 GWA-30BR58 GWA-31BRA87.4 MW-20DR312 MW-21BR57.6 MW-32BR56.5 MW-38BR406 C-1004: C2800Riverfront20.4 C-1006: 2910Fox Place50.9 C-1007: 433Dysart Place61.5 C1139.3 C2315.7 C2528.2 C2627.1 C344 C816 C8 Sp ring14.9 C9A14.1 GWA-21BR260GWA-29BRA346 GWA-48BR63.8 IB-4BR130 AS-6BRA70.2 MW-23DR98.4 C24-158.2 C9B48.9 GWA-33BR188 CCR-CCP-10DANM CCR-CCP-1DNM CCPMW-4NM CCPMW-5NM GWA-2BRNM C2968RiverfrontNA CCPMW-6DNA GWA-32BRNA CCR-CCP-3DANM C105DownriverNA CCR-CCP-11BRNM AS-7BRNM GWA-29BRNM U5-5BRNM U5-8BRNM NOTES: NO NORTH CAROLINA 2L OR INTERIM MAXIMUM ALLOWABLECONCENTRATION ESTABLISHED FOR STRONTIUM. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 107.1 μg/L. † CON CENTRATION GREATER THAN C URRENT SITE SPECIFIC PBTVBUT WITHIN THE BACKGR OUND CONCENTRATION RANGE FORSIMILAR PIEDMONT GE OLOGIC SET TINGS. DUE TO GROUNDWATERFLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS,CONCENTRATION DOES NOT SUGGE ST IMPACT FROM THE ASH BASIN. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. NM = NOT MEASU RED; NA = NOT AVAILABLE; ND = NON-DETECT. PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). WATER SUPPLY WE LL SAMPL ED BY NCDEQ BETWEEN MARCH 2015AND S EPTEMBER 2015. FIG URE 11-27ISOCONCENTRATION MAP -STRO NTIUM IN BE DRO CK GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/26/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Bedrock.mxd 700 0 700 1,400350 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS WATER SUPPLY WELL ABANDONED WELL!( STRONTIUM CONCENTRATION (µg/L) NOT DETECTED ABOVE REPORTING LIMIT STANDARD CONTOUR PBTV CONTOUR ASSESSMENT WELL BACKGROUND COMPLIANCE W ELL DOWNGRADIENT COMPLIANCE WELL MONITORING W ELL &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( !( &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRSTATE RD 1997 H I N E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 22 1ASTATERD 1993DUKE POWER RD U5-6SNM GWA-4S221 AB-3SL*67.2 IB-2AL84.9 CCR-7S589 IB-2I51.5 CLMW-4<1 0.1690.1690.169 0.169 2502 5 0 250 GWA-20S83.9 GWA-35S45.4 IB-2S-SL*269 IB-3S250 MW-32S0.83 j MW-42S8.4 AB-3S*344 M6 AB-4S*86.7 AB-5S*130 BG-1S<1 CCPMW-1S<1 CCPMW-2S0.382 CLMW-1142 CLM W-3S249 M6 CLM W-5S3.4 CLMW-6<1 GWA-21S87.5 GWA-22S0.84 j GWA-24S3 GWA-25S<1 GWA-26S<1 GWA-30S0.9 j GWA-34S1 GWA-38S171 GWA-43S38.7 GWA-44S445 IB-1S*433 IB-4S-SL*153 MW-8S65.1 MW-30S<1 MW-36S21.2 U5-3SA55.5 U5-4S12 U5-7S*34.7 U5-8S17.9 CCR-CCP-3S0.7 j CCR-CCP-6S<1 CCR-CCP-15S1.2 CCR-U5-8S324 CCR-U5-9S5.3 CCR-CCP-9S1.1 CCR-CCP-10S1.1 CCPMW-6S7.83 CLM W-2207 GWA-12S10.1 CCR-11S62.8 AB-1S2.6 AB-2S17.2 AB-4SL*12.8 AS-2S361 AS-5S<1 AS-6S0.85 j CCPTW-22.17 CCR-12S40.1 CCR-IB-1S46.2 CCR-IB-3S121 GWA-5S561 GWA-45S43.6 MW-10S62.4 MW-11S38.7 MW-34S<1 U5-1S17.2 CCR-6S605 CCR-U5-4S229 CCR-U5-6S171 AB-6S*155 GWA-10S135 GWA-14S143 GWA-33S123 MW-38S161 CCR-16S89.6 CCR-CCP-12S<1 CCR-U5-3S50.1 CCPMW-3S7.1 MW-23S159 U5-7SL*258 CCR-U5-10S0.65 j AB-3I3.6 AS-1SB383 M6 AS-7S*491 CCPTW-1S0.385 GWA-2S64.2 M1 GWA-11S120 GWA-36S189 GWA-37S75.4 MW-40S121 CCR-CCP-5S1.5 AS-4SNA GWA-6SNM U5-2S-SLA*NM NOTES: THE NORTH CAR OLIN A 2 L FOR SULFATE IS 250 mg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 1.169 mg/L *ASH P ORE WATER WELL DATA ARE DISPLAYED WITH THE SHALLOWFLOW L AYER; HOWEVER , PORE WATER IS CONSIDEREDWASTEWATER A ND GROUN DWATER STANDARDS ARE NOTAPPLICABLE. THE PORE WATER RE SULTS HAVE BEEN USED TOASSIST IN INFE RRING ISOCONCENTRATION CONTOURS. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-28ISOCONCENTRATION MAP -SULFATE IN SHALLO W GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Shallow.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS SULFATE CONCENTRATION (mg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &<&< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( &< &<&< &< &< &< &< !( &< &<&< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< !( &< &< &< &< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRST A TE R D 1997 H IN E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 221ASTATERD 1993DUKE POWER RD 10101010 10 2 5 0250 MW-2DNM MW-42DNM GWA-4D258 AS-5BRU<1GWA-3D189 GWA-20D153 GWA-22BRU4.8 GWA-35D63.4 M1 IB-3D81.3 MW-4D16.8 MW-20D24 MW-23D402 MW-32D9 CCR-8D263 CCR-CCP-13D<1 CCR-U5-4D391 AS-7D143 BG-1D1.9 CCR-13D4.1 CLM W-3D238 GWA-1BRU8 GWA-23D0.55 j GWA-24D2.8GWA-27DA68.8 GWA-44D324 GWA-47D<1 IB-1D43.6 IB-2BRU31.6 MW-8D51.8 MW-21D0.76 j MW-24D<1 MW-30D15.3 MW-34BRU11 MW-36BRU7.6 U5-2D78.6 U5-3D51.1 U5-4D32 U5-5D246 U5-8D2.4 CCR-CCP-2D<1 CCR-CCP-4D0.72 j CCR-CCP-6D27 CCR-CCP-7D7.5 CCR-CCP-11D24.7 CCR-CCP-14D3.3 CCR-U5-1D12.3 CCR-U5-2D41.9 CCR-U5-8D458 U5-7D231 GWA-21BRU72.8 MW-10D14.2 U5-6D186 CCR-11D92.9 AB-1D26.9 AB-2D41 AB-4D<1 AB-5BRU5.1 AB-6D0.89 j AS-2D208 AS-4D2.8 AS-6D0.96 j BG-2D7.8 CCR-12D23.7 CCR-15D<1 CCR-IB-3D74.2 GWA-5BRU58.9 GWA-31D459 MW-40BRU92.7 U5-1D12.6 CCR-4D20.1 CCR-14D65.8 CCR-16D5.3 CCR-CCP-12D3.7 CCR-U5-5D154 CCR-U5-6D203 GWA-10D19.4 GWA-14D225 GWA-33D99 MW-38D251 CCR-U5-3D81.1 CCPMW-2D4.7 CCPMW-3D21.6 GWA-12BRU9.4 GWA-27D86.4 GWA-28BRU12.4 GWA-29D8.7 IB-4D33.7 CCR-5D42.3CCR-6D116CCR-7D38.9 CCR-U5-10D10.2 AS-1D55.5 AS-3BRU<1 CCPTW-1D88.5 CCR-IB-1D15.3 GWA-11BRU134 GWA-36D336 GWA-37D322 CCR-CCP-5D10.8 GWA-38DNA AB-3BRUANM GWA-25DNM GWA-26DNM GWA-30BRUNM AB-3BRUNM GWA-6DNM NOTES: THE NORTH CAR OLIN A 2 L FOR SULFATE IS 250 mg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 10 mg/L. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-29ISOCONCENTRATION MAP -SULFATE IN DEEP GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Deep.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS SULFATE CONCENTRATION (mg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &<&< &< !( &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< ACTIVEASH BASIN ASHSTORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BR OAD RIVER B R O A D R IV E R SUCK CREEKFO X DEN DRH O L L Y W O O D D R V I N E W O O D D R OSPREY LNSTATE R D 1186 MOSTELLAR RD STATERD 1211 MO UNTPLEASANTCHURCH RD FOX PLMCCOMBS RDSTATE RD 1189STATE RD 1193STATE RD 1209PROSPECT CHURCH RDSTATERD 1210BARNS RDS T A T E R D 1 2 0 7WOOD RDSTATERD 2503RIVER FRONT DRP R O S P E C T C H U R C H R D W H E LC H E L R DST ATERD 1192LA K E H O U S E R R D MCCRAW RD STATE RD 1002STATE RD 1209STATE RD 1995 WESTON DRSTATE RD 1997 S T A T E R D 1 9 9 4PLOTAST DROLDFIELD RDLIVERETTTRLB A N D B T R L LIONEL STWATERLOO RDCAMEO DR H IN E S R DSTATERD 2102 STATERD 1995GREEN ACRES RDCOBB RDSTATE RD 2100 STATERD 2117 F ER RY R D HI NES RD S T A T E R D 2 1 0 2 STATE RD 2101 BALLENGER RD STATE RD 1978DUKE POWER RDDYSART RDSTATE RD 2109ISLAND FORD RDSTATE RD 1976CHESTERFIELD RD KIRBY RD OLD USHWY 221ASTATE RD 1993US HWY 221 ALT15.11 5 .1 15.1250 C-1001:C2801Riverfront5.9 GWA-28BR6.2 GWA-31BR210 C-1002: 2901Fox Place15.3 IB-4BR39.9 CCR-CCP-15D49.7 MW-2DA16.1 GWA-24BR6.9 MW-25DR5.5 C1 Well 38.5 C107.6 C2968Riverfront2 C4 Well37 C52.3 AB-4BR4.3 AB-5BR5.6AB-6BR5.5 BG-1BR16.9 CCPMW-1D1.4 GWA-14BR18.5 GWA-27BR7.9 GWA-44BR332 MW-24DR10.7 U5-2BR16.7 CCR-CCP-1D2.9 C1511 C162.6 C171.2 C192.5 C242 C76.5 GWA-20BR66.7 CCR-CCP-10DA29.6 GWA-13BR80 MW-22DR12.8 CCR-CCP-11BR30.3 AS-2BR85.1 AS-5BR9.8 CCPMW-6D0.758 GWA-30BR14.3 M1,R1 GWA-31BRA210 MW-20DR<1 MW-21BR6.8 MW-32BR16.3 MW-38BR311 CCR-3BR15.6 CCR-CCP-3DA11.8 C-1004: C2800Riverfront<2 C-1006: 2910Fox Place10.3 C-1007: 433Dysart Place12 C105Downriver6.8 C11<2 C23<2 C254.8 C263 C34.4 C8<2 C8 Sp ring5.9 C9A2.6 GWA-21BR0.6 jGWA-29BRA13.9 GWA-48BR10.9 AS-6BRA4.9 MW-23DR19.8 CCR-CCP-9D10.4 C1Well29 C24-12.9 C9B6.2 GWA-33BR41.4 CCPMW-4NM CCPMW-5NM GWA-2BRNM U5-4BRNM GWA-32BRNA AS-7BRNM GWA-29BRNM U5-5BRNM U5-8BRNM NOTES: THE NORTH CAR OLIN A 2 L FOR SULFATE IS 250 mg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 15.1 mg/L. † CON CENTRATION GREATER THAN C URRENT SITE SPECIFIC PBTVBUT WITHIN THE BACKGR OUND CONCENTRATION RANGE FORSIMILAR PIEDMONT GE OLOGIC SET TINGS. DUE TO GROUNDWATERFLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS,CONCENTRATION DOES NOT SUGGE ST IMPACT FROM THE ASH BASIN. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. NM = NOT MEASU RED; NA = NOT AVAILABLE; ND = NON-DETECT. PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). WATER SUPPLY WE LL SAMPL ED BY NCDEQ BETWEEN MARCH 2015AND S EPTEMBER 2015. FIG URE 11-30ISOCONCENTRATION MAP -SULFATE IN BEDRO CK GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/26/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Bedrock.mxd 700 0 700 1,400350 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS WATER SUPPLY WELL ABANDONED WELL!( SULFATE CONCENTRATION (mg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT WELL BACKGROUND COMPLIANCE W ELL DOWNGRADIENT COMPLIANCE WELL MONITORING W ELL &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( !( &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRSTATE RD 1997 H I N E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 22 1ASTATERD 1993DUKE POWER RD CCPMW-3SNA CCPTW-1SNA CCPMW-6SNA U5-6SNM GWA-4S1.9 AB-3SL*0.068 j IB-2AL0.48 U5-7SL*<1 IB-2I0.033 j CLMW-4<0.1 0.117 0.1170 .1 1 7 0.1170 . 1 1 7 0.1170.2 0.2 0.20.2GWA-20S0.076 j,B GWA-35S0.15 IB-2S-SL*<0.1 IB-3S0.396 MW-32S0.071 j MW-42S0.04 j+ AB-3S*0.4 AB-4S*0.084 j AB-5S*0.063 j BG-1S0.079 j CCPMW-1S<0.1 CLMW-10.47 CLM W-3S0.33 CLM W-5S0.31 CLMW-60.039 j GWA-21S0.12 GWA-22S0.024 j GWA-24S0.07 j GWA-25S0.031 j GWA-26S0.051 j GWA-30S0.05 j GWA-34S<0.1 GWA-38S0.028 j GWA-43S0.05 j GWA-44S0.14 IB-1S*0.82 j IB-4S-SL*0.21 MW-8S<0.1 MW-30S0.057 j MW-36S<0.1 U5-3SA0.084 j U5-4S0.041 j U5-7S*<0.1 U5-8S<0.1 CCR-CCP-3S0.041 j CCR-CCP-6S0.051 j CCR-CCP-15S0.058 j CCR-U5-8S0.26 CCR-U5-9S0.086 j CCR-7S0.47 CCR-CCP-9S0.045 j CCR-CCP-10S0.19 CLM W-20.4 GWA-12S<0.1 CCR-11S<0.1 AB-1S0.44 AB-2S0.39 AB-4SL*0.092 j AS-2S0.38 AS-5S0.074 j,B AS-6S0.08 j CCR-12S0.16 CCR-IB-1S0.089 j CCR-IB-3S0.073 j GWA-5S0.3 GWA-45S0.15 MW-10S0.12 MW-11S0.062 j MW-34S0.017 j U5-1S<0.1 CCR-6S0.54 CCR-U5-4S0.61 CCR-U5-6S0.72 AB-6S*0.19 GWA-10S0.21 GWA-14S0.12 GWA-33S0.017 j MW-38S0.025 j CCR-16S0.34 CCR-CCP-12S0.11 CCR-U5-3S0.16 MW-23S0.08 j CCR-U5-10S0.094 j AB-3I0.41 AS-1SB0.59 AS-7S*0.61 GWA-2S0.13 GWA-11S0.038 j GWA-36S1.7 GWA-37S0.1 MW-40S0.049 j CCR-CCP-5S0.043 j CCPMW-2SNA AS-4SNA CCPTW-2NA GWA-6SNM U5-2S-SLA*NM NOTES: THE INTE RIM MAXIMUM AL LOWABLE C ONCENTRATION (IMAC) FORTHALLIUM IS 0.2 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 0.117 µg/L. *ASH P ORE WATER WELL DATA ARE DISPLAYED WITH THE SHALLOWFLOW L AYER; HOWEVER , PORE WATER IS CONSIDEREDWASTEWATER A ND GROUN DWATER STANDARDS ARE NOTAPPLICABLE. THE PORE WATER RE SULTS HAVE BEEN USED TOASSIST IN INFE RRING ISOCONCENTRATION CONTOURS. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-31ISOCONCENTRATION MAP -THALLIU M IN S HALLOW GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Shallow.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS THALLIUM CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT IMAC CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &<&< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( &< &<&< &< &< &< &< !( &< &<&< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< !( &< &< &< &< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRST A TE R D 1997 H IN E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 221ASTATERD 1993DUKE POWER RD 0.0630.0630.0630.063 0.0630 .2 0.2CCPMW-2DNA CCPMW-3DNA CCPTW-1DNA MW-2DNM MW-42DNM GWA-4D<0.1 CCR-U5-3D0.22 B U5-6D0.068 j AS-5BRU<0.1GWA-3D0.075 j GWA-20D0.57 GWA-22BRU<0.1 GWA-35D0.023 j IB-3D<0.1 MW-4D<0.1 MW-20D0.017 j MW-23D<0.1 MW-32D<0.1 CCR-8D1.2 CCR-CCP-13D0.18 CCR-U5-4D1 AS-7D0.072 j BG-1D0.057 j CCR-13D0.042 j CLM W-3D0.042 j GWA-1BRU<0.1 GWA-23D<0.1 GWA-24D0.028 jGWA-27DA0.13 B GWA-44D<0.1 GWA-47D0.15 IB-1D<0.1 IB-2BRU<0.1 MW-8D<0.1 MW-21D0.034 j MW-24D0.027 j MW-30D<0.1 MW-34BRU<0.1 MW-36BRU<0.1 U5-2D0.024 j U5-3D0.081 j U5-4D<0.1 U5-5D0.054 j U5-8D<0.1 CCR-CCP-2D0.04 j CCR-CCP-4D0.071 j CCR-CCP-6D<0.1 CCR-CCP-7D0.044 j CCR-CCP-11D<0.1 CCR-CCP-14D0.03 j CCR-U5-1D0.041 j CCR-U5-2D0.11 CCR-U5-8D2.4 U5-7D0.066 j GWA-21BRU0.16 MW-10D0.073 j CCR-11D0.18 AB-1D<0.1 AB-2D<0.1 AB-4D0.065 j AB-5BRU0.13 AB-6D0.067 j AS-2D<0.1 AS-4D<0.1 AS-6D<0.1 BG-2D<0.2 CCR-12D<0.1 CCR-15D0.064 j CCR-IB-3D<0.1 GWA-5BRU<0.1 GWA-31D<0.1 MW-40BRU<0.1 U5-1D<0.1 CCR-4D0.063 j CCR-14D0.21 B CCR-16D0.098 j,B CCR-CCP-12D<0.1 CCR-U5-5D0.034 j,B CCR-U5-6D0.17 GWA-10D<0.1 GWA-14D0.039 j GWA-33D<0.1 MW-38D0.015 j GWA-12BRU<0.1 GWA-27D0.11 GWA-28BRU<0.1 GWA-29D0.016 j IB-4D<0.1 CCR-5D0.095 jCCR-6D0.34CCR-7D0.23 CCR-U5-10D0.075 j AS-1D0.22 AS-3BRU0.036 j CCR-IB-1D<0.1 GWA-11BRU<0.1 GWA-36D<0.1 GWA-37D<0.1 CCR-CCP-5D0.023 j GWA-38DNA AB-3BRUANM GWA-25DNM GWA-26DNM GWA-30BRUNM AB-3BRUNM GWA-6DNM NOTES: THE INTE RIM MAXIMUM AL LOWABLE C ONCENTRATION (IMAC) FORTHALLIUM IS 0.2 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 0.063 µg/L. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-32ISOCONCENTRATION MAP -THALLIU M IN DE EP GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Deep.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS THALLIUM CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT IMAC CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &<&< &< !( &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< ACTIVEASH BASIN ASHSTORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BR OAD RIVER B R O A D R IV E R SUCK CREEKFO X DEN DRH O L L Y W O O D D R V I N E W O O D D R OSPREY LNSTATE R D 1186 MOSTELLAR RD STATERD 1211 MO UNTPLEASANTCHURCH RD FOX PLMCCOMBS RDSTATE RD 1189STATE RD 1193STATE RD 1209PROSPECT CHURCH RDSTATERD 1210BARNS RDS T A T E R D 1 2 0 7WOOD RDSTATERD 2503RIVER FRONT DRP R O S P E C T C H U R C H R D W H E LC H E L R DST ATERD 1192LA K E H O U S E R R D MCCRAW RD STATE RD 1002STATE RD 1209STATE RD 1995 WESTON DRSTATE RD 1997 S T A T E R D 1 9 9 4PLOTAST DROLDFIELD RDLIVERETTTRLB A N D B T R L LIONEL STWATERLOO RDCAMEO DR H IN E S R DSTATERD 2102 STATERD 1995GREEN ACRES RDCOBB RDSTATE RD 2100 STATERD 2117 F ER RY R D HI NES RD S T A T E R D 2 1 0 2 STATE RD 2101 BALLENGER RD STATE RD 1978DUKE POWER RDDYSART RDSTATE RD 2109ISLAND FORD RDSTATE RD 1976CHESTERFIELD RD KIRBY RD OLD USHWY 221ASTATE RD 1993US HWY 221 ALTC-1002: 2901FoxPlaceNA C-1001:C2801RiverfrontNA0.2GWA-28BR<0.1 GWA-31BR0.12 CCR-CCP-15D<0.1 GWA-24BR<0.1 MW-25DR<0.1 AB-4BR<0.1 AB-5BR0.045 jAB-6BR0.027 j BG-1BR<0.1 CCPMW-1D<0.1 GWA-14BR<0.1 GWA-27BR0.027 j,B GWA-44BR<0.1 MW-2DA0.032 j,B MW-24DR<0.1 U5-2BR0.32 CCR-CCP-1D<0.1 GWA-20BR<0.1 CCR-CCP-10DA<0.1 GWA-13BR<0.1 MW-22DR<0.1 CCR-CCP-11BR<0.1 AS-2BR<0.1 AS-5BR<0.1 GWA-30BR<0.1 GWA-31BRA0.12 MW-20DR<0.1 R1 MW-21BR<0.1 MW-32BR<0.1 MW-38BR<0.1 CCR-3BR0.022 j CCR-CCP-3DA0.049 j GWA-21BR<0.1GWA-29BRA<0.1 GWA-48BR<0.1 IB-4BR<0.1 AS-6BRA0.023 j+ MW-23DR<0.1 CCR-CCP-9D<0.1 GWA-33BR<0.1 C15NA C16NA C17NA C19NA C24NA C7NA CCPMW-4NM CCPMW-5NM GWA-2BRNM U5-4BRNM C1 Well 3NA C10NA C2968RiverfrontNA C4Well 3NA C5NA CCPMW-6DNA GWA-32BRNA C-1004: C2800RiverfrontNA C-1006: 2910Fox PlaceNA C-1007: 433Dysart PlaceNA C105DownriverNA C11NA C23NA C25NA C26NA C3NA C8NA C8 SpringNA C9ANA AS-7BRNM GWA-29BRNM C1Well2NA C24-1NA C9BNA U5-5BRNM U5-8BRNM NOTES: THE INTE RIM MAXIMUM AL LOWABLE C ONCENTRATION (IMAC) FORTHALLIUM IS 0.2 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 0.2 µg/L. † CON CENTRATION GREATER THAN C URRENT SITE SPECIFIC PBTVBUT WITHIN THE BACKGR OUND CONCENTRATION RANGE FORSIMILAR PIEDMONT GE OLOGIC SET TINGS. DUE TO GROUNDWATERFLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS,CONCENTRATION DOES NOT SUGGE ST IMPACT FROM THE ASH BASIN. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. NM = NOT MEASU RED; NA = NOT AVAILABLE; ND = NON-DETECT. PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). WATER SUPPLY WE LL SAMPL ED BY NCDEQ BETWEEN MARCH 2015AND S EPTEMBER 2015. FIG URE 11-33ISOCONCENTRATION MAP -THALLIU M IN BEDROCK GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/26/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Bedrock.mxd 700 0 700 1,400350 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS WATER SUPPLY WELL ABANDONED WELL!( THALLIUM CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT IMAC CONTOUR PBTV CONTOUR ASSESSMENT WELL BACKGROUND COMPLIANCE W ELL DOWNGRADIENT COMPLIANCE WELL MONITORING W ELL &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( !( &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRSTATE RD 1997 H I N E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 22 1ASTATERD 1993DUKE POWER RD U5-6SNM GWA-4S332 AB-3SL*184 IB-2AL314 U5-7SL*<25 CLMW-4152 IB-2S-SL*596 75.4775.477 5 .4 7 75.475 0 0 500 500 5 0 0 GWA-20S319 GWA-35S118 IB-3S330 MW-32S51 MW-42S64 AB-3S*767 AB-4S*294 AB-5S*422 BG-1S<25 CCPMW-1S<25 CCPMW-2S24 j CLM W-1345 CLM W-3S418 CLMW-5S37 CLMW-636 GWA-21S153 GWA-22S106 GWA-24S27 GWA-25S<25 GWA-26S<25 GWA-30S39 GWA-34S<25 GWA-38S291 GWA-43S78 GWA-44S696 IB-1S*864 IB-2I466 IB-4S-SL*527 MW-8S338 MW-30S<25 MW-36S64 D6 U5-3SA137 U5-4S50 U5-7S*193 U5-8S235 CCR-CCP-3S48 CCR-CCP-6S41 CCR-CCP-15S46 CCR-U5-8S566 CCR-U5-9S52 CCR-7S1270 CCR-CCP-9S43 CCR-CCP-10S<25 CCPMW-6S52 CLM W-2398 GWA-12S70 CCR-11S349 AB-1S63 AB-2S114 AB-4SL*156 AS-2S627 AS-5S<25 AS-6S<25 CCPTW-246 CCR-12S139 CCR-IB-1S110 CCR-IB-3S325 GWA-5S891 GWA-45S81 MW-10S113 MW-11S194 MW-34S<25 U5-1S94 CCR-6S960 CCR-U5-4S371 CCR-U5-6S298 AB-6S*484 GWA-10S253 GWA-14S358 GWA-33S207 MW-38S279 CCR-16S149 CCR-CCP-12S48 CCR-U5-3S215 CCPMW-3S40 MW-23S243 CCR-U5-10S34 AB-3I64 AS-1SB607 AS-7S*942 CCPTW-1S33 GWA-2S175 GWA-11S278 GWA-36S274 GWA-37S185 MW-40S221 CCR-CCP-5S34 AS-4SNA GWA-6SNM U5-2S-SLA*NM NOTES: THE NORTH CAR OLIN A 2 L FOR TOTA L DISSOLVED SOLIDS IS 500 mg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 75.47 mg/L. *ASH P ORE WATER WELL DATA ARE DISPLAYED WITH THE SHALLOWFLOW L AYER; HOWEVER , PORE WATER IS CONSIDEREDWASTEWATER A ND GROUN DWATER STANDARDS ARE NOTAPPLICABLE. THE PORE WATER RE SULTS HAVE BEEN USED TOASSIST IN INFE RRING ISOCONCENTRATION CONTOURS. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-34ISOCONCENTRATION MAP -TOTAL DISSOLVED SOLIDS IN SHALLOWGROUNDWATERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCDRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Shallow.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS TOTAL DISSOLVED SOLIDS CONCENTRATION (mg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &<&< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( &< &<&< &< &< &< &< !( &< &<&< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< !( &< &< &< &< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRST A TE R D 1997 H IN E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 221ASTATERD 1993DUKE POWER RD 70.9870.98 70.98 70.987 0 .9 8 7 0 .9 8 70.98 5 0 0 500 500MW-2DNM MW-42DNM GWA-4D419 AS-5BRU26GWA-3D346 GWA-20D331 GWA-22BRU110 GWA-35D202 IB-3D244 MW-4D186 MW-20D188 MW-23D710 MW-32D45 CCR-8D535 CCR-CCP-13D71 CCR-U5-4D670 AS-7D279 BG-1D30 CCR-13D<25 CLM W-3D425 GWA-1BRU110 GWA-23D<25 GWA-24D26GWA-27DA250 GWA-44D598 GWA-47D86 IB-1D150 IB-2BRU171 MW-8D190 MW-21D<25 MW-24D32 MW-30D98 MW-34BRU104 MW-36BRU114 U5-2D330 U5-3D88 U5-4D133 U5-5D435 U5-8D59 CCR-CCP-2D59 CCR-CCP-4D36 CCR-CCP-6D105 CCR-CCP-7D68 CCR-CCP-11D190 CCR-CCP-14D57 CCR-U5-1D96 CCR-U5-2D88 CCR-U5-8D831 U5-7D502 GWA-21BRU177 MW-10D34 U5-6D335 CCR-11D294 AB-1D220 AB-2D221 AB-4D<25 AB-5BRU<25 AB-6D47 AS-2D439 AS-4D69 AS-6D28 BG-2D67 CCR-12D130 CCR-15D<25 CCR-IB-3D292 GWA-5BRU473 GWA-31D855 MW-40BRU281 U5-1D198 CCR-4D43 CCR-14D218 CCR-16D56 CCR-CCP-12D65 CCR-U5-5D397 CCR-U5-6D401 GWA-10D113 GWA-14D447 GWA-33D260 MW-38D426 CCR-U5-3D202 CCPMW-2D49 CCPMW-3D51 GWA-12BRU72 GWA-27D288 j+ GWA-28BRU70 GWA-29D69 IB-4D173 CCR-5D70CCR-6D272CCR-7D121 CCR-U5-10D76 AS-1D145 AS-3BRU<25 CCPTW-1D219 CCR-IB-1D52 GWA-11BRU336 GWA-36D537 GWA-37D526 CCR-CCP-5D79 GWA-38DNA AB-3BRUANM GWA-25DNM GWA-26DNM GWA-30BRUNM AB-3BRUNM GWA-6DNM NOTES: THE NORTH CAR OLIN A 2 L FOR TOTA L DISSOLVED SOLIDS IS 500 mg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 70.98 mg/L. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-35ISOCONCENTRATION MAP -TOTAL DISSOLVED SOLIDS IN DEEPGROUNDWATERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCDRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Deep.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS TOTAL DISSOLVED SOLIDS CONCENTRATION (mg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &<&< &< !( &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< ACTIVEASH BASIN ASHSTORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BR OAD RIVER B R O A D R IV E R SUCK CREEKFO X DEN DRH O L L Y W O O D D R V I N E W O O D D R OSPREY LNSTATE R D 1186 MOSTELLAR RD STATERD 1211 MO UNTPLEASANTCHURCH RD FOX PLMCCOMBS RDSTATE RD 1189STATE RD 1193STATE RD 1209PROSPECT CHURCH RDSTATERD 1210BARNS RDS T A T E R D 1 2 0 7WOOD RDSTATERD 2503RIVER FRONT DRP R O S P E C T C H U R C H R D W H E LC H E L R DST ATERD 1192LA K E H O U S E R R D MCCRAW RD STATE RD 1002STATE RD 1209STATE RD 1995 WESTON DRSTATE RD 1997 S T A T E R D 1 9 9 4PLOTAST DROLDFIELD RDLIVERETTTRLB A N D B T R L LIONEL STWATERLOO RDCAMEO DR H IN E S R DSTATERD 2102 STATERD 1995GREEN ACRES RDCOBB RDSTATE RD 2100 STATERD 2117 F ER RY R D HI NES RD S T A T E R D 2 1 0 2 STATE RD 2101 BALLENGER RD STATE RD 1978DUKE POWER RDDYSART RDSTATE RD 2109ISLAND FORD RDSTATE RD 1976CHESTERFIELD RD KIRBY RD OLD USHWY 221ASTATE RD 1993US HWY 221 ALT1 2 0 120 1 20 1201 2 0 500 C-1001:C2801Riverfront62 GWA-28BR88 GWA-31BR482 C-1002: 2901FoxPlace63 IB-4BR198 CCR-3BR112 CCR-CCP-15D171 GWA-24BR41 MW-25DR109 C1 Well 360 C1079 C2968Riverfront101 C4 Well 3160 C580 AB-4BR80 AB-5BR<25AB-6BR85 BG-1BR156 CCPMW-1D30 GWA-14BR140 GWA-27BR194 GWA-44BR653 MW-2DA128 MW-24DR109 U5-2BR178 CCR-CCP-1D100 C15190 C1638 C17330 C1925 C24101 C794 GWA-20BR271 CCR-CCP-10DA128 GWA-13BR270 MW-22DR43 CCR-CCP-11BR198 D6 AS-2BR273 AS-5BR96 CCPMW-6D56 GWA-30BR87 GWA-31BRA482 MW-20DR292 MW-21BR90 MW-32BR81 MW-38BR575 CCR-CCP-3DA64 D6 C-1004: C2800Riverfront27 C-1006: 2910Fox Place104 C-1007: 433Dysart Place115 C105Downriver99 C11<25 C2344 C2554 C2661 C336 C859 C8 Spring45 C9A32 GWA-21BR245GWA-29BRA143 GWA-48BR74 AS-6BRA92 MW-23DR131 D6 CCR-CCP-9D43 C1Well253 C24-190 C9B97 GWA-33BR212 CCPMW-4NM CCPMW-5NM GWA-2BRNM U5-4BRNM GWA-32BRNA AS-7BRNM GWA-29BRNM U5-5BRNM U5-8BRNM NOTES: THE NORTH CAR OLIN A 2 L FOR TOTA L DISSOLVED SOLIDS IS 500 mg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 120 mg/L. † CON CENTRATION GREATER THAN C URRENT SITE SPECIFIC PBTVBUT WITHIN THE BACKGR OUND CONCENTRATION RANGE FORSIMILAR PIEDMONT GE OLOGIC SET TINGS. DUE TO GROUNDWATERFLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS,CONCENTRATION DOES NOT SUGGE ST IMPACT FROM THE ASH BASIN. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. NM = NOT MEASU RED; NA = NOT AVAILABLE; ND = NON-DETECT. PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). WATER SUPPLY WE LL SAMPL ED BY NCDEQ BETWEEN MARCH 2015AND S EPTEMBER 2015. FIG URE 11-36ISOCONCENTRATION MAP -TO TAL DISS O LVE D S O LIDS IN BEDROCKGROUNDWATERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCDRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/26/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Bedrock.mxd 700 0 700 1,400350 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS WATER SUPPLY WELL ABANDONED WELL!( TOTAL DISSOLVED SOLIDS CONCENTRATION (mg/L) NOT DETECTED ABOVE REPORTING LIMIT NORTH CAROLINA 2L CONTOUR PBTV CONTOUR ASSESSMENT WELL BACKGROUND COMPLIANCE W ELL DOWNGRADIENT COMPLIANCE WELL MONITORING W ELL &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( !( &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRSTATE RD 1997 H I N E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 22 1ASTATERD 1993DUKE POWER RD CCPMW-3SNA CCR-U5-10SNM CCPTW-1SNA CCR-CCP-5SNM CCPMW-6SNA CCR-11SNM CCR-CCP-9SNM CCR-CCP-10SNM U5-6SNM AB-3SL*60.1 IB-2AL<1 IB-2I1 j+ CLMW-4<10.80.80.80 .8 0.8 0.80 .8 0 .8 GWA-20S<0.3 GWA-35S0.3 IB-2S-SL*0.77 j IB-3S0.422 MW-32S0.48 MW-42S0.56 AB-3S*5.2 AB-4S*25.3 AB-5S*2.4 BG-1S0.14 j CCPMW-1S<0.3 CLMW-10.23 j CLM W-3S0.078 j CLM W-5S0.76 CLMW-60.28 j GWA-21S0.56 GWA-22S1.4 GWA-24S<0.3 GWA-25S0.27 j,B GWA-26S0.21 j,B GWA-30S<0.3 GWA-34S0.26 j GWA-38S0.41 GWA-43S1 GWA-44S0.97 IB-1S*<3 IB-4S-SL*2 j+ MW-8S<0.3 MW-30S0.2 j MW-36S0.47 U5-3SA1 U5-4S0.39 U5-7S*0.68 U5-8S<0.3 CLM W-20.16 j GWA-12S0.086 j AB-1S0.22 j,B AB-2S0.094 j AB-4SL*17 AS-2S<0.3 AS-5S0.22 j AS-6S0.16 j GWA-5S0.33 GWA-45S0.24 j MW-10S0.13 j MW-11S0.32 B MW-34S0.16 j U5-1S0.37 AB-6S*30.5 GWA-10S0.62 GWA-14S1.5 GWA-33S0.96 MW-38S0.71 MW-23S0.97 U5-7SL*1.8 j AB-3I2.2 AS-1SB0.078 j AS-7S*0.57 GWA-2S0.3 j GWA-4S0.18 j GWA-11S1.1 GWA-36S<0.3 GWA-37S0.92 MW-40S1.1 CCPMW-2SNA CCR-CCP-3SNM CCR-CCP-6SNM CCR-CCP-15SNM CCR-U5-8SNM CCR-U5-9SNM AS-4SNA CCPTW-2NA CCR-12SNM CCR-IB-1SNM CCR-IB-3SNM CCR-6SNM CCR-U5-4SNM CCR-U5-6SNM GWA-6SNM U5-2S-SLA*NM CCR-16SNM CCR-CCP-12SNM CCR-U5-3SNM NOTES: THE INTE RIM MAXIMUM AL LOWABLE C ONCENTRATION (IMAC) FORVANADIUM IS 0.3 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 0.8 µg/L. *ASH P ORE WATER WELL DATA ARE DISPLAYED WITH THE SHALLOWFLOW L AYER; HOWEVER , PORE WATER IS CONSIDEREDWASTEWATER A ND GROUN DWATER STANDARDS ARE NOTAPPLICABLE. THE PORE WATER RE SULTS HAVE BEEN USED TOASSIST IN INFE RRING ISOCONCENTRATION CONTOURS. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-37ISOCONCENTRATION MAP -VANADIUM IN SHA LLOW GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Shallow.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS VANADIUM CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT IMAC CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &<&< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( &< &<&< &< &< &< &< !( &< &<&< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< !( &< &< &< &< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRST A TE R D 1997 H IN E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 221ASTATERD 1993DUKE POWER RD 1 . 0 9 5 1 .0 9 5 1.0951.095CCPMW-2DNA CCPMW-3DNA CCR-5DNA CCR-6DNACCR-7DNA CCR-U5-10DNA CCPTW-1DNA CCR-IB-1DNA CCR-CCP-5DNA CCR-11DNA CCR-U5-6DNA MW-2DNM CCR-8DNA CCR-CCP-13DNA CCR-U5-4DNA MW-42DNM AS-5BRU0.22 jGWA-3D0.74 GWA-20D<0.3 GWA-22BRU1.4 GWA-35D0.18 j IB-3D0.31 MW-4D<1 MW-20D0.094 j,B MW-23D<0.3 MW-32D0.16 j AS-7D0.82 BG-1D0.12 j CLM W-3D0.36 GWA-1BRU0.1 j GWA-23D<0.3 GWA-24D<0.3GWA-27DA0.32 GWA-44D0.92 GWA-47D0.21 j,B IB-1D7.3 IB-2BRU<1 MW-8D0.13 j MW-21D0.2 j,B MW-24D0.082 j MW-30D12.2 MW-34BRU0.37 MW-36BRU0.39 U5-2D1.4 U5-3D0.36 U5-4D1.7 U5-5D0.71 U5-8D0.72 U5-7D1.9 GWA-21BRU<0.3 MW-10D0.094 j U5-6D1.7 AB-1D0.15 j,B AB-2D<0.3 AB-4D0.13 j AB-5BRU0.44 AB-6D0.085 j AS-2D0.43 AS-4D0.39 AS-6D0.14 j BG-2D3.24 GWA-5BRU0.56 GWA-31D0.27 j MW-40BRU1.7 U5-1D1.5 GWA-10D0.46 GWA-14D0.42 GWA-33D0.41 MW-38D0.69 GWA-12BRU0.19 j GWA-27D<0.3 GWA-28BRU0.19 j GWA-29D0.14 j IB-4D<1 AS-1D0.083 j AS-3BRU0.16 j,B GWA-4D0.19 j GWA-11BRU<0.3 GWA-36D0.27 j GWA-37D1 CCR-13DNA GWA-38DNA CCR-CCP-2DNA CCR-CCP-4DNA CCR-CCP-6DNA CCR-CCP-7DNA CCR-CCP-11DNA CCR-CCP-14DNA CCR-U5-1DNA CCR-U5-2DNA CCR-U5-8DNA AB-3BRUANM GWA-25DNM GWA-26DNM GWA-30BRUNM CCR-12DNA CCR-15DNA CCR-IB-3DNA CCR-4DNA CCR-14DNA CCR-16DNA CCR-CCP-12DNA CCR-U5-5DNA AB-3BRUNM GWA-6DNM CCR-U5-3DNA NOTES: THE INTE RIM MAXIMUM AL LOWABLE C ONCENTRATION (IMAC) FORVANADIUM IS 0.3 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 1.095 µg/L. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-38ISOCONCENTRATION MAP -VANADIUM IN DEEP GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Deep.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS VANADIUM CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT IMAC CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &<&< &< !( &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< ACTIVEASH BASIN ASHSTORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BR OAD RIVER B R O A D R IV E R SUCK CREEKFO X DEN DRH O L L Y W O O D D R V I N E W O O D D R OSPREY LNSTATE R D 1186 MOSTELLAR RD STATERD 1211 MO UNTPLEASANTCHURCH RD FOX PLMCCOMBS RDSTATE RD 1189STATE RD 1193STATE RD 1209PROSPECT CHURCH RDSTATERD 1210BARNS RDS T A T E R D 1 2 0 7WOOD RDSTATERD 2503RIVER FRONT DRP R O S P E C T C H U R C H R D W H E LC H E L R DST ATERD 1192LA K E H O U S E R R D MCCRAW RD STATE RD 1002STATE RD 1209STATE RD 1995 WESTON DRSTATE RD 1997 S T A T E R D 1 9 9 4PLOTAST DROLDFIELD RDLIVERETTTRLB A N D B T R L LIONEL STWATERLOO RDCAMEO DR H IN E S R DSTATERD 2102 STATERD 1995GREEN ACRES RDCOBB RDSTATE RD 2100 STATERD 2117 F ER RY R D HI NES RD S T A T E R D 2 1 0 2 STATE RD 2101 BALLENGER RD STATE RD 1978DUKE POWER RDDYSART RDSTATE RD 2109ISLAND FORD RDSTATE RD 1976CHESTERFIELD RD KIRBY RD OLD USHWY 221ASTATE RD 1993US HWY 221 ALT0.37 0.370.37 C-1001:C2801Riverfront<0.3 GWA-28BR0.11 j GWA-31BR<0.3 MW-23DR<0.3 C-1002: 2901Fox Place<0.3 IB-4BR<1 CCR-CCP-15D171 GWA-24BR<0.3 MW-25DR0.6 C1 Well 3<5 C10<1 C4 Well 311 C5<1 AB-4BR<0.3 AB-5BR<0.3AB-6BR0.07 j BG-1BR1.5 CCPMW-1D<0.3 GWA-14BR0.41 GWA-27BR0.15 j GWA-44BR0.51 MW-2DA0.45 MW-24DR<0.3 U5-2BR<0.3 CCR-CCP-1D100 C15<5 C16<5 C17<5 C19<5 C24<1 C7<1 GWA-20BR0.14 j CCR-CCP-10DA128 GWA-13BR0.15 j MW-22DR<0.3 CCR-CCP-11BR198 D6 AS-2BR0.66 AS-5BR1.6 GWA-30BR<0.3 GWA-31BRA<0.3 MW-20DR0.084 j,B,M1,R1 MW-21BR0.41 B MW-32BR<0.3 MW-38BR<0.3 CCR-3BR112 CCR-CCP-3DA64 D6 C-1004: C2800Riverfront<0.3 C-1006: 2910Fox Place<0.3 C-1007: 433Dysart Place<0.3 C11<1 C23<1 C25<1 C26<1 C3<1 C8<1 C8 Spring3 C9A<1 GWA-21BR<0.3GWA-29BRA0.56 GWA-48BR0.14 j AS-6BRA1.7 CCR-CCP-9D43 C1Well2<1 C24-1<1 C9B<1 GWA-33BR<0.3 CCPMW-4NM CCPMW-5NM GWA-2BRNM U5-4BRNM C2968RiverfrontNA CCPMW-6DNA GWA-32BRNA C105DownriverNA AS-7BRNM GWA-29BRNM U5-5BRNM U5-8BRNM NOTES: THE INTE RIM MAXIMUM AL LOWABLE C ONCENTRATION (IMAC) FORVANADIUM IS 0.3 μg/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 0.37 µg/L. † CON CENTRATION GREATER THAN C URRENT SITE SPECIFIC PBTVBUT WITHIN THE BACKGR OUND CONCENTRATION RANGE FORSIMILAR PIEDMONT GE OLOGIC SET TINGS. DUE TO GROUNDWATERFLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS,CONCENTRATION DOES NOT SUGGE ST IMPACT FROM THE ASH BASIN. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. NM = NOT MEASU RED; NA = NOT AVAILABLE; ND = NON-DETECT. PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). WATER SUPPLY WE LL SAMPL ED BY NCDEQ BETWEEN MARCH 2015AND S EPTEMBER 2015. FIG URE 11-39ISOCONCENTRATION MAP -VANADIUM IN BED ROCK GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/26/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Bedrock.mxd 700 0 700 1,400350 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS WATER SUPPLY WELL ABANDONED WELL!( VANADIUM CONCENTRATION (μg/L) NOT DETECTED ABOVE REPORTING LIMIT IMAC CONTOUR PBTV CONTOUR ASSESSMENT WELL BACKGROUND COMPLIANCE W ELL DOWNGRADIENT COMPLIANCE WELL MONITORING W ELL &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( !( &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRSTATE RD 1997 H I N E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 22 1ASTATERD 1993DUKE POWER RD CCPMW-3SNA MW-23SNA CCR-U5-10SNM AS-1SBNA CCPTW-1SNA GWA-37SNA MW-40SNA CCR-CCP-5SNM CCPMW-6SNA CLMW-2NA CCR-11SNM GWA-35SNA MW-42SNA CCR-CCP-9SNM CCR-CCP-10SNM U5-6SNM 0.00050.0005GWA-20S0.00032 j MW-32S<0.0005 AB-3S*0.0102 AB-4S*0.0024 AB-5S*0.0712 BG-1S<0.0005 CCPMW-1S<0.0005 CLM W-16.3E-05 j CLM W-3S0.00018 j GWA-21S0.00012 j GWA-22S<0.0005 GWA-38S<0.0005 MW-8S0.00021 j MW-30S<0.0005 AB-4SL*0.0279 AS-2S0.0002 j CCR-12S<0.0005 CCR-IB-1S0.00013 j CCR-IB-3S0.00019 j MW-11S<0.0005 AB-6S*0.0023 MW-38S<0.0005 AB-3SL*0.00017 j AS-7S*0.0014 GWA-2S<0.0005 GWA-4S0.000083 j GWA-11S<0.0005 GWA-36S0.0012 CCPMW-2SNA CLM W-5SNA CLMW-6NA GWA-24SNA GWA-25SNA GWA-26SNA GWA-30SNA GWA-34SNA GWA-43SNA GWA-44SNA IB-1S*NA IB-2INA IB-4S-SL*NA MW-36SNA U5-3SANA U5-4SNA U5-7S*NA U5-8SNA CCR-CCP-3SNM CCR-CCP-6SNM CCR-CCP-15SNM CCR-U5-8SNM CCR-U5-9SNM AB-1SNA AB-2SNA AS-4SNA AS-5SNA AS-6SNA CCPTW-2NA GWA-5SNA GWA-45SNA MW-10SNA MW-34SNA U5-1SNA CCR-6SNM CCR-U5-4SNM CCR-U5-6SNM GWA-6SNM U5-2S-SLA*NM GWA-10SNA GWA-14SNA GWA-33SNA CCR-16SNM CCR-CCP-12SNM CCR-U5-3SNM NOTES: THE FEDERAL MAXIMUM CONTAMINANT LEVEL STANDARD FOR TOTALURANIUM IS 0 .03 μg/mL. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 0.0005 µg/mL. *ASH P ORE WATER WELL DATA ARE DISPLAYED WITH THE SHALLOWFLOW L AYER; HOWEVER , PORE WATER IS CONSIDEREDWASTEWATER A ND GROUN DWATER STANDARDS ARE NOTAPPLICABLE. THE PORE WATER RE SULTS HAVE BEEN USED TOASSIST IN INFE RRING ISOCONCENTRATION CONTOURS. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-40ISOCONCENTRATION MAP -TOTAL URANIUM IN SHALLOW GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Shallow.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS TOTAL URANIUM CONCENTRATION (µg/mL) NOT DETECTED ABOVE REPORTING LIMIT STANDARD CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &<&< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( &< &<&< &< &< &< &< !( &< &<&< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< !( &< &< &< &< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRST A TE R D 1997 H IN E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 221ASTATERD 1993DUKE POWER RD 0.0005 CCPMW-2DNA CCPMW-3DNA GWA-12BRUNA GWA-27DNA IB-4DNA CCR-5DNM CCR-6DNMCCR-7DNM CCR-U5-10DNM AS-1DNA CCPTW-1DNA GWA-37DNA CCR-CCP-5DNM CCR-11DNM MW-2DNM AS-5BRUNA GWA-22BRUNA GWA-35DNA MW-20DNA CCR-8DNM CCR-CCP-13DNM CCR-U5-4DNM MW-42DNM MW-10DNA GWA-3D0.000061 j GWA-20D<0.0005 MW-32D<0.0005 BG-1D<0.0005 CCR-13D<0.0005 CLM W-3D<0.0005 GWA-27DA<0.0005 MW-24D<0.0005 MW-30D0.00036 j U5-2D0.00042 j U5-5D0.0019 GWA-21BRU<0.0005AS-2D0.00022 j CCR-12D<0.0005 CCR-15D<0.0005 CCR-IB-3D0.0047 MW-38D0.00015 j GWA-29D<0.0005 CCR-IB-1D<0.0005 GWA-4D0.00061 GWA-11BRU0.00024 j GWA-36D<0.0005 AS-7DNA GWA-1BRUNA GWA-23DNA GWA-24DNA GWA-38DNA GWA-44DNA GWA-47DNA IB-1DNA IB-2BRUNA MW-8DNA MW-21DNAMW-34BRUNA MW-36BRUNA U5-3DNA U5-4DNA U5-8DNA CCR-CCP-2DNM CCR-CCP-4DNM CCR-CCP-6DNM CCR-CCP-7DNM CCR-CCP-11DNM CCR-CCP-14DNM CCR-U5-1DNM CCR-U5-2DNM CCR-U5-8DNM AB-3BRUANM GWA-25DNM GWA-26DNM GWA-30BRUNM U5-7DNA AB-1DNA AB-2DNA AB-4DNA AB-5BRUNA AB-6DNA AS-4DNA AS-6DNA BG-2DNA GWA-5BRUNA GWA-31DNA MW-40BRUNA U5-1DNA CCR-4DNM CCR-14DNM CCR-16DNM CCR-CCP-12DNM CCR-U5-5DNM CCR-U5-6DNM AB-3BRUNM GWA-6DNM GWA-10DNA GWA-14DNA GWA-33DNA CCR-U5-3DNM NOTES: THE FEDERAL MAXIMUM CONTAMINANT LEVEL STANDARD FOR TOTALURANIUM IS 0 .03 μg/mL. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 0.0005 µg/mL. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-41ISOCONCENTRATION MAP -TO TAL URANIUM IN DEEP GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Deep.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS TOTAL URANIUM CONCENTRATION (µg/mL) NOT DETECTED ABOVE REPORTING LIMIT STANDARD CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &<&< &< !( &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< ACTIVEASH BASIN ASHSTORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BR OAD RIVER B R O A D R IV E R SUCK CREEKFO X DEN DRH O L L Y W O O D D R V I N E W O O D D R OSPREY LNSTATE R D 1186 MOSTELLAR RD STATERD 1211 MO UNTPLEASANTCHURCH RD FOX PLMCCOMBS RDSTATE RD 1189STATE RD 1193STATE RD 1209PROSPECT CHURCH RDSTATERD 1210BARNS RDS T A T E R D 1 2 0 7WOOD RDSTATERD 2503RIVER FRONT DRP R O S P E C T C H U R C H R D W H E LC H E L R DST ATERD 1192LA K E H O U S E R R D MCCRAW RD STATE RD 1002STATE RD 1209STATE RD 1995 WESTON DRSTATE RD 1997 S T A T E R D 1 9 9 4PLOTAST DROLDFIELD RDLIVERETTTRLB A N D B T R L LIONEL STWATERLOO RDCAMEO DR H IN E S R DSTATERD 2102 STATERD 1995GREEN ACRES RDCOBB RDSTATE RD 2100 STATERD 2117 F ER RY R D HI NES RD S T A T E R D 2 1 0 2 STATE RD 2101 BALLENGER RD STATE RD 1978DUKE POWER RDDYSART RDSTATE RD 2109ISLAND FORD RDSTATE RD 1976CHESTERFIELD RD KIRBY RD OLD USHWY 221ASTATE RD 1993US HWY 221 ALTGWA-28BRNA GWA-31BRNA CCR-CCP-9DNM C-1002: 2901FoxPlaceNA GWA-48BRNA C-1001:C2801RiverfrontNA CCR-CCP-15DNM 0.00050.0005 AB-4BR<0.0005 BG-1BR0.00042 j CCPMW-1D<0.0005 GWA-27BR0.0017 GWA-44BR0.0055 MW-24DR<0.0005 GWA-20BR0.00014 j MW-32BR<0.0005 MW-38BR0.00019 j GWA-21BR<0.0005 AS-6BRA0.00015 j CCR-CCP-10DANM AB-5BRNAAB-6BRNA GWA-14BRNA MW-2DANA U5-2BRNA CCR-CCP-1DNM C15NA C16NA C17NA C19NA C24NA C7NA CCPMW-4NM CCPMW-5NM GWA-2BRNM U5-4BRNM GWA-24BRNA MW-25DRNA C1 Well 3NA C10NA C2968RiverfrontNA C4Well 3NA C5NA AS-2BRNA AS-5BRNA CCPMW-6DNA GWA-30BRNA GWA-31BRANA GWA-32BRNA MW-20DRNA MW-21BRNA CCR-3BRNM CCR-CCP-3DANM C-1004: C2800RiverfrontNA C-1006: 2910Fox PlaceNA C-1007: 433Dysart PlaceNA C105DownriverNA C11NA C23NA C25NA C26NA C3NA C8NA C8 SpringNA C9ANA GWA-13BRNA MW-22DRNA CCR-CCP-11BRNM AS-7BRNMGWA-33BRNA GWA-29BRNMGWA-29BRANAIB-4BRNA MW-23DRNA C1Well2NA C24-1NA C9BNA U5-5BRNM U5-8BRNM NOTES: THE FEDERAL MAXIMUM CONTAMINANT LEVEL STANDARD FOR TOTALURANIUM IS 0 .03 μg/mL. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 0.0005 µg/mL. † CON CENTRATION GREATER THAN C URRENT SITE SPECIFIC PBTVBUT WITHIN THE BACKGR OUND CONCENTRATION RANGE FORSIMILAR PIEDMONT GE OLOGIC SET TINGS. DUE TO GROUNDWATERFLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS,CONCENTRATION DOES NOT SUGGE ST IMPACT FROM THE ASH BASIN. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. NM = NOT MEASU RED; NA = NOT AVAILABLE; ND = NON-DETECT. PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). WATER SUPPLY WE LL SAMPL ED BY NCDEQ BETWEEN MARCH 2015AND S EPTEMBER 2015. FIG URE 11-42ISOCONCENTRATION MAP -TO TAL URANIUM IN BEDR OCK GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/26/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Bedrock.mxd 700 0 700 1,400350 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS WATER SUPPLY WELL ABANDONED WELL!( TOTAL URANIUM CONCENTRATION (µg/mL) NOT DETECTED ABOVE REPORTING LIMIT STANDARD CONTOUR PBTV CONTOUR ASSESSMENT WELL BACKGROUND COMPLIANCE W ELL DOWNGRADIENT COMPLIANCE WELL MONITORING W ELL &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( !( &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< !( &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !( &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRSTATE RD 1997 H I N E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 22 1ASTATERD 1993DUKE POWER RD CCPMW-3SNA MW-23SNA AS-1SBNA CCPTW-1SNA GWA-37SNA MW-40SNA CCPMW-6SNA CLMW-2NA GWA-35SNA MW-42SNA U5-6SNM 2.58 GWA-20S0.4126 MW-32S1.087 AB-3S*1.052 AB-4S*0.779 AB-5S*0.894 BG-1S0.869 CCPMW-1S1.16 CLMW-11.732 CLM W-3S0.6184 GWA-21S1.784 GWA-22S0.835 GWA-38S0.772 MW-8S0.925 MW-30S1.629 CCR-CCP-3S0.827 CCR-CCP-6S0.2732 CCR-CCP-15S0.836 CCR-U5-8S1.059 CCR-U5-9S0.682 CCR-7S0.438 CCR-CCP-9S1.76 CCR-CCP-10S1.079 CCR-11S1.003 AB-4SL*1.1122 AS-2S0.939 CCR-IB-1S0.924 CCR-IB-3S0.822 MW-11S0.703 CCR-6S4.237 CCR-U5-4S0.88 CCR-U5-6S0.793 AB-6S*0.733 MW-38S0.81 CCR-16S1.244 CCR-CCP-12S0.742 CCR-U5-3S-0.1746 AB-3SL*1.074 CCR-U5-10S0.8 AS-7S*0.996 GWA-2S0.553 GWA-4S0.392 GWA-11S0.428 GWA-36S0.383 CCR-CCP-5S0.858 CCPMW-2SNA CLM W-5SNA CLMW-6NA GWA-24SNA GWA-25SNA GWA-26SNA GWA-30SNA GWA-34SNA GWA-43SNA GWA-44SNA IB-1S*NA IB-2INA IB-4S-SL*NA MW-36SNA U5-3SANA U5-4SNA U5-7S*NA U5-8SNA AB-1SNA AB-2SNA AS-4SNA AS-5SNA AS-6SNA CCPTW-2NA CCR-12SNAGWA-5SNA GWA-45SNA MW-10SNA MW-34SNA U5-1SNA GWA-6SNM U5-2S-SLA*NM GWA-10SNA GWA-14SNA GWA-33SNA NOTES: THE FEDERAL MAXIMUM CONTAMINANT LEVEL STANDARD FOR TOTALURANIUM IS 5 pCi/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 2.58 pCi/L. *ASH P ORE WATER WELL DATA ARE DISPLAYED WITH THE SHALLOWFLOW L AYER; HOWEVER , PORE WATER IS CONSIDEREDWASTEWATER A ND GROUN DWATER STANDARDS ARE NOTAPPLICABLE. THE PORE WATER RE SULTS HAVE BEEN USED TOASSIST IN INFE RRING ISOCONCENTRATION CONTOURS. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-43ISOCONCENTRATION MAP -TOTAL RADIUM IN SHALLOW GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Shallow.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS TOTAL RADIUM CONCENTRATION (pCi/L) NOT DETECTED ABOVE REPORTING LIMIT STANDARD CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &< &< &< &< &<&< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( &< &<&< &< &< &< &< !( &< &<&< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &< &< &<&< !( &< &< &< &< &< &< &< &< &< &<&< &< &< &< !( !( &< &< &< &< &< &< &< ACTIVEASH BASIN ASH STORAGEAREA UNITS 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL B R O A D R IV E RBROAD R IV E R S U C K C R E E K D O W N R IV E R D R STATE RD 1207WOOD RDF O X P L STATE RD 2503M C C R A W R D STATE RD 1002 RIVER FRONT DR PRO S P EC T C HU RC H RD STATE RD 1209STATE RD 1977WESTONDRST A TE R D 1997 H IN E S R DSTATERD 1994STATE RD 1995WATERLOO RDUS HWY 221 ALTOLD US HWY 221ASTATERD 1993DUKE POWER RD 1.511.511.51 1.5 11.51CCPMW-2DNA CCPMW-3DNA GWA-12BRUNA GWA-27DNA IB-4DNA AS-1DNA CCPTW-1DNA GWA-37DNA MW-2DNM AS-5BRUNA GWA-22BRUNA GWA-35DNA MW-20DNA MW-42DNM AS-7DNA MW-10DNA GWA-4D4.161 GWA-29D1.318 U5-5D4.518 GWA-3D1.212 GWA-20D0.904 MW-32D1.144 CCR-8D1.515 CCR-CCP-13D0.468 CCR-U5-4D0.663 BG-1D0.797 CCR-13D1.186 CLM W-3D1.532 GWA-27DA1.224 MW-24D0.953 MW-30D1.96 U5-2D0.85 CCR-CCP-2D0.827 CCR-CCP-4D0.779 CCR-CCP-6D0.622 CCR-CCP-7D-0.106 CCR-CCP-11D0.527 CCR-CCP-14D0.888 CCR-U5-1D0.916 CCR-U5-2D0.948 CCR-U5-8D2.047 GWA-21BRU1.544 CCR-11D1.613 AS-2D1.229 CCR-12D0.881 CCR-15D1.653 CCR-IB-3D1.64 CCR-4D0.489 CCR-14D0.849 CCR-16D0.791 CCR-CCP-12D0.667 CCR-U5-5D0.343 CCR-U5-6D0.488 MW-38D0.618 CCR-U5-3D0.463 CCR-5D0.8683CCR-6D1.2594CCR-7D0.268 CCR-U5-10D0.99 CCR-IB-1D0.966 GWA-11BRU4.49 GWA-36D0.722 CCR-CCP-5D0.226 GWA-1BRUNA GWA-23DNA GWA-24DNA GWA-38DNA GWA-44DNA GWA-47DNA IB-1DNA IB-2BRUNA MW-8DNA MW-21DNAMW-34BRUNA MW-36BRUNA U5-3DNA U5-4DNA U5-8DNA AB-3BRUANM GWA-25DNM GWA-26DNM GWA-30BRUNM U5-7DNA AB-1DNA AB-2DNA AB-4DNA AB-5BRUNA AB-6DNA AS-4DNA AS-6DNA BG-2DNA GWA-5BRUNA GWA-31DNA MW-40BRUNA U5-1DNA AB-3BRUNM GWA-6DNM GWA-10DNA GWA-14DNA GWA-33DNA NOTES: THE FEDERAL MAXIMUM CONTAMINANT LEVEL STANDARD FOR TOTALURANIUM IS 5 pCi/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 1.51 pCi/L. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. ND = NON-DE TECT; NM = N OT MEASUR ED; NA = NOT AVAILABLE; PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIG URE 11-44ISOCONCENTRATION MAP -TO TAL RADIUM IN DEEP GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/27/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Deep.mxd 400 0 400 800200 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS TOTAL RADIUM CONCENTRATION (pCi/L) NOT DETECTED ABOVE REPORTING LIMIT STANDARD CONTOUR PBTV CONTOUR ASSESSMENT W ELL BACKGROUND COMPLIANCE WELL DOWNGRADIENT COMPLIANCE W ELL MONITORING WELL WATER SUPPLY W ELL ABANDONED W ELL!( &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< &<&< &< !( &< &< &< !( &< &< &< &< &< &< &< &< &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< ACTIVEASH BASIN ASHSTORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BR OAD RIVER B R O A D R IV E R SUCK CREEKFO X DEN DRH O L L Y W O O D D R V I N E W O O D D R OSPREY LNSTATE R D 1186 MOSTELLAR RD STATERD 1211 MO UNTPLEASANTCHURCH RD FOX PLMCCOMBS RDSTATE RD 1189STATE RD 1193STATE RD 1209PROSPECT CHURCH RDSTATERD 1210BARNS RDS T A T E R D 1 2 0 7WOOD RDSTATERD 2503RIVER FRONT DRP R O S P E C T C H U R C H R D W H E LC H E L R DST ATERD 1192LA K E H O U S E R R D MCCRAW RD STATE RD 1002STATE RD 1209STATE RD 1995 WESTON DRSTATE RD 1997 S T A T E R D 1 9 9 4PLOTAST DROLDFIELD RDLIVERETTTRLB A N D B T R L LIONEL STWATERLOO RDCAMEO DR H IN E S R DSTATERD 2102 STATERD 1995GREEN ACRES RDCOBB RDSTATE RD 2100 STATERD 2117 F ER RY R D HI NES RD S T A T E R D 2 1 0 2 STATE RD 2101 BALLENGER RD STATE RD 1978DUKE POWER RDDYSART RDSTATE RD 2109ISLAND FORD RDSTATE RD 1976CHESTERFIELD RD KIRBY RD OLD USHWY 221ASTATE RD 1993US HWY 221 ALTGWA-28BRNA GWA-31BRNA MW-23DRNA C-1002: 2901FoxPlaceNA GWA-48BRNA C-1001:C2801RiverfrontNA 3.1 3.15CCR-CCP-15D0.376 AB-4BR2.156 CCPMW-1D0.932 GWA-27BR1.036 GWA-44BR27.27 MW-24DR3.46 CCR-CCP-1D1.33 GWA-20BR2.807 CCR-CCP-10DA0.938 CCR-CCP-11BR0.126 MW-32BR1.019 MW-38BR3.96 CCR-3BR1.193 CCR-CCP-3DA0.332 GWA-21BR4.64 CCR-CCP-9D1.33 AB-5BRNAAB-6BRNA BG-1BRNA GWA-14BRNA MW-2DANA U5-2BRNA C15NA C16NA C17NA C19NA C24NA C7NA CCPMW-4NM CCPMW-5NM GWA-2BRNM U5-4BRNM GWA-24BRNA MW-25DRNA C1 Well 3NA C10NA C2968RiverfrontNA C4Well 3NA C5NA AS-2BRNA AS-5BRNA CCPMW-6DNA GWA-30BRNA GWA-31BRANA GWA-32BRNA MW-20DRNA MW-21BRNA C-1004: C2800RiverfrontNA C-1006: 2910Fox PlaceNA C-1007: 433Dysart PlaceNA C105DownriverNA C11NA C23NA C25NA C26NA C3NA C8NA C8 SpringNA C9ANA GWA-13BRNA MW-22DRNA AS-7BRNMGWA-33BRNA GWA-29BRNMGWA-29BRANAIB-4BRNA AS-6BRANA C1Well2NA C24-1NA C9BNA U5-5BRNM U5-8BRNM NOTES: THE FEDERAL MAXIMUM CONTAMINANT LEVEL STANDARD FOR TOTALURANIUM IS 5 pCi/L. PROVIS IONAL BACKGROUND THRESHOLD VALUE IS 3.1 pCi/L. † CON CENTRATION GREATER THAN C URRENT SITE SPECIFIC PBTVBUT WITHIN THE BACKGR OUND CONCENTRATION RANGE FORSIMILAR PIEDMONT GE OLOGIC SET TINGS. DUE TO GROUNDWATERFLOW DIRECTION AND OTHER CONSTITUENT MIGRATION PATTERNS,CONCENTRATION DOES NOT SUGGE ST IMPACT FROM THE ASH BASIN. DATA MAY INCLUDE LAB-QUALIFIED R ESULTS. REFER TO ANALYTICALDATA TABL E NOTES F OR QUA LIFIER DEFINITIONS. CONCENTRATIONS REPORTED ON FIGURE REPRESENT MOSTRECENT VA LID SAMP LE RESULTS FOR EACH WELL. DATA WITH HIGHTURBIDITY (>10 NTU) OR RESULTS THAT INDICATE GROUTCONTAMINATION OF T HE WEL L (P H>9) HAVE BEEN REMOVED FROMDATASET. C OLLECTION DATES DEPICTED ON FIGURE RANGE FROMMARCH 2015 TO A UGUST 2017. NM = NOT MEASU RED; NA = NOT AVAILABLE; ND = NON-DETECT. PROPERTY B OUNDARY PROVIDED BY DUKE ENERGY. AERIA L PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ONSEPTEMBER 27 , 20 17. AERIA L WAS COLLECTED ON JUNE 13, 2016. DRAWING HAS BE EN SE T WITH A P ROJECTION OF NORTH CAROLINASTATE P LANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). WATER SUPPLY WE LL SAMPL ED BY NCDEQ BETWEEN MARCH 2015AND S EPTEMBER 2015. FIG URE 11-45ISOCONCENTRATION MAP -TO TAL RADIUM IN BEDRO CK GROUNDWAT ERCLIFFSIDE STEAM ST AT IONDUKE E NERG Y CAROLINAS, LLCMOORESBORO, NO RT H CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/26/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS B ASE DATA\Cli ffside\M apdocs\CSA_Supplement_2\Cliffside - Isoconcentration Maps - Bedrock.mxd 700 0 700 1,400350 GRAP HIC SCALE IN FEET LEGEND CAR OLINAS WATER SUPPLY WELL ABANDONED WELL!( TOTAL RADIUM CONCENTRATION (pCi/L) NOT DETECTED ABOVE REPORTING LIMIT STANDARD CONTOUR PBTV CONTOUR ASSESSMENT WELL BACKGROUND COMPLIANCE W ELL DOWNGRADIENT COMPLIANCE WELL MONITORING W ELL &< &< &< &< ASH BASIN WASTE BOUNDARY ASH BASIN CO MPLIANCE BOUNDARY LAND FILL/ASH STO RAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARY SURFACE WATER WITH FLOW DIRECTION< 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DATE: December 2017 LEGEND 15 NCAC 02L Standard or IMAC Shallow Well Deep Well 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. Cr (VI) does not have a 2L standard. The 2L for Cr is displayed on the Cr (VI) diagram for interpretive purposes. FIGURE 11-46 CONCENTRATION VERSUS DISTANCE FROM SOURCE – pH, ARSENIC, BORON, CHROMIUM (VI), CHROMIUM, COBALT, AND IRON ACTIVE ASH BASIN – UPSTREAM DAM (SHEET 1 OF 3) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA PP:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Con vs Dist DRAWN BY: M. Youngblood PROJECT MANAGER: S. Spinner LAYOUT: 4.00 5.00 6.00 7.00 8.00 9.00 10.00 0 500 1000 1500pH Distance from Source (ft) pH 0 20 40 60 80 100 120 140 160 180 200 0 500 1000 1500Arsenic Concentration (µg/L)Distance from Source (ft) Arsenic 0 700 1400 2100 0 500 1000 1500Boron Concentration (µg/L)Distance from Source (ft) Boron 0 2 4 6 8 10 12 0 500 1000 1500Chromium Concentration (µg/L)Distance from Source (ft) Chromium (VI) 0 2 4 6 8 10 12 0 500 1000 1500Chromium Concentration (µg/L)Distance from Source (ft) Chromium 0 10 20 30 40 50 60 70 80 90 0 500 1000 1500Cobalt Concentration (µg/L)Distance from Source (ft) Cobalt 0 5000 10000 15000 20000 25000 0 500 1000 1500Iron Concentration (µg/L)Distance from Source (ft) Iron 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DATE: December 2017 LEGEND 15 NCAC 02L Standard or IMAC Shallow Well Deep Well 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. FIGURE 11-47 CONCENTRATION VERSUS DISTANCE FROM SOURCE – MANGANESE, STRONTIUM, SULFATE, TOTAL DISSOLVED SOLIDS, THALLIUM, AND VANADIUM ACTIVE ASH BASIN – UPSTREAM DAM (SHEET 2 OF 3) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA PP:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Con vs Dist DRAWN BY: M. Youngblood PROJECT MANAGER: S. Spinner LAYOUT: 0 2000 4000 6000 8000 10000 12000 0 500 1000 1500Manganese Concentration (µg/L)Distance from Source (ft) Manganese 0 200 400 600 800 1000 1200 0 500 1000 1500Strontium Concentration (µg/L)Distance from Source (ft) Strontium 0 20 40 60 80 100 120 140 160 180 0 500 1000 1500Sulfate Concentration (mg/L)Distance from Source (ft) Sulfate 0 100 200 300 400 500 600 0 500 1000 1500TDS Concentration (mg/L)Distance from Source (ft) Total Dissolved Solids 0 5 10 15 20 25 30 0 500 1000 1500Vanadium Concentration (µg/L)Distance from Source (ft) Vanadium 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0 500 1000 1500Thallium Concentration (µg/L)Distance from Source (ft) Thallium Note: Wells used for each graph within this figure are consistent and are as follows: Source Area Shallow Flow Layer: AB-4S Deep Flow Layer: AB-4D Roughly 1250’ from Source Area Shallow Flow Layer : AB-2S Deep Flow Layer : AB-2D Roughly 1325’ from Source Area Shallow Flow Layer : GWA-20S Deep Flow Layer : GWA-20D 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: M. Youngblood PROJECT MANAGER: S. Spinner LAYOUT: DATE: December 2017 LEGEND Federal MCL Shallow Well Deep Well 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. FIGURE 11-48 CONCENTRATION VERSUS DISTANCE FROM SOURCE – RADIUM AND URANIUM ACTIVE ASH BASIN – UPSTREAM DAM (SHEET 3 OF 3) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA PP:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Con vs Dist 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0 500 1000 1500Uranium Concentration (pCi/L)Distance from Source (ft) Uranium 0 1 2 3 4 5 6 0 500 1000 1500Radium Concentration (µg/L)Distance from Source (ft) Radium 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DATE: December 2017 LEGEND 15 NCAC 02L Standard or IMAC Shallow Well Deep Well Bedrock Well 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. Cr (VI) does not have a 2L standard. The 2L for Cr is displayed on the Cr (VI) diagram for interpretive purposes. FIGURE 11-49 CONCENTRATION VERSUS DISTANCE FROM SOURCE – pH, ARSENIC, BORON, CHROMIUM (VI), CHROMIUM, COBALT, AND IRON ACTIVE ASH BASIN - DOWNSTREAM DAM (SHEET 1 OF 3) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA PP:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Con vs Dist DRAWN BY: M. Youngblood PROJECT MANAGER: S. Spinner LAYOUT: 4.00 5.00 6.00 7.00 8.00 9.00 10.00 0 500 1000 1500pH Distance from Source (ft) pH 0 20 40 60 80 100 120 140 160 180 200 0 500 1000 1500Arsenic Concentration (µg/L)Distance from Source (ft) Arsenic 0 700 1400 2100 0 500 1000 1500Boron Concentration (µg/L)Distance from Source (ft) Boron 0 2 4 6 8 10 12 0 500 1000 1500Chromium Concentration (µg/L)Distance from Source (ft) Chromium (VI) 0 2 4 6 8 10 12 0 500 1000 1500Chromium Concentration (µg/L)Distance from Source (ft) Chromium 0 10 20 30 40 50 60 0 500 1000 1500Cobalt Concentration (µg/L)Distance from Source (ft) Cobalt 0 2000 4000 6000 8000 10000 12000 14000 0 500 1000 1500Iron Concentration (µg/L)Distance from Source (ft) Iron 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com LEGEND 15 NCAC 02L Standard or IMAC Shallow Well Deep Well Bedrock Well 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. FIGURE 11-50 CONCENTRATION VERSUS DISTANCE FROM SOURCE – MANGANESE, STRONTIUM, SULFATE, TOTAL DISSOLVED SOLIDS, THALLIUM, AND VANADIUM ACTIVE ASH BASIN –DOWNSTREAM DAM (SHEET 2 OF 3) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA DRAWN BY: M. Youngblood PROJECT MANAGER: S. Spinner LAYOUT: DATE: December 2017 PP:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Con vs Dist 0 1000 2000 3000 4000 5000 6000 0 500 1000 1500Manganese Concentration (µg/L)Distance from Source (ft) Manganese 0 200 400 600 800 1000 1200 0 500 1000 1500Strontium Concentration (µg/L)Distance from Source (ft) Strontium 0 10 20 30 40 50 60 70 80 90 100 0 500 1000 1500Sulfate Concentration (mg/L)Distance from Source (ft) Sulfate 0 100 200 300 400 500 600 0 500 1000 1500TDS Concentration (mg/L)Distance from Source (ft) Total Dissolved Solids 0.0 0.1 0.1 0.2 0.2 0.3 0.3 0.4 0.4 0.5 0.5 0 500 1000 1500Thallium Concentration (µg/L)Distance from Source (ft) Thallium 0.0 5.0 10.0 15.0 20.0 25.0 30.0 0 500 1000 1500Vanadium Concentration (µg/L)Distance from Source (ft) Vanadium 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: M. Youngblood PROJECT MANAGER: S. Spinner LAYOUT: DATE: December 2017 PP:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Con vs Dist LEGEND Federal MCL Shallow Well Deep Well Bedrock Well 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. FIGURE 11-51 CONCENTRATION VERSUS DISTANCE FROM SOURCE – RADIUM AND URANIUM ACTIVE ASH BASIN –DOWNSTREAM DAM (SHEET 3 OF 3) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA Note: Wells used for each graph within this figure are consistent and are as follows: Source Area Shallow Flow Layer: AB-4S Deep Flow Layer: AB-4D Bedrock Flow Layer: AB-4BR Roughly 1150’ to 1350’ from Source Area Shallow Flow Layer : AB-1S Deep Flow Layer : AB-1D Bedrock Flow Layer : GWA-21BR Roughly 1450’ to 1575’ from Source Area Shallow Flow Layer : GWA-21S Deep Flow Layer : GWA-21BRU Bedrock Flow Layer : MW-20DR 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0 500 1000 1500Uranium Concentration (pCi/L)Distance from Source (ft) Uranium 0 1 2 3 4 5 6 0 500 1000 1500Radium Concentration (µg/L)Distance from Source (ft) Radium 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DATE: December 2017 LEGEND 15 NCAC 02L Standard or IMAC Shallow Well Deep Well Bedrock Well 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. Cr (VI) does not have a 2L standard. The 2L for Cr is displayed on the Cr (VI) diagram for interpretive purposes. FIGURE 11-52 CONCENTRATION VERSUS DISTANCE FROM SOURCE – pH, ARSENIC, BORON, CHROMIUM (VI), CHROMIUM, COBALT, AND IRON ASH STORAGE AREA (SHEET 1 OF 3) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA PP:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Con vs Dist DRAWN BY: M. Youngblood PROJECT MANAGER: S. Spinner LAYOUT: 4 5 6 7 8 9 10 0 200 400 600pH Distance from Source (ft) pH 0 2 4 6 8 10 12 0 200 400 600Arsenic Concentration (µg/L)Distance from Source (ft) Arsenic 0 700 1400 2100 2800 0 200 400 600Boron Concentration (µg/L)Distance from Source (ft) Boron 0 2 4 6 8 10 12 0 200 400 600Chromium Concentration (µg/L)Distance from Source (ft) Chromium (VI) 0 2 4 6 8 10 12 14 16 18 0 200 400 600Cobalt Concentration (µg/L)Distance from Source (ft) Cobalt 0 100 200 300 400 500 600 0 200 400 600Iron Concentration (µg/L)Distance from Source (ft) Iron 0 2 4 6 8 10 12 0 200 400 600Chromium Concentration (µg/L)Distance from Source (ft) Chromium 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com LEGEND 15 NCAC 02L Standard or IMAC Shallow Well Deep Well Bedrock Well 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. DRAWN BY: M. Youngblood PROJECT MANAGER: S. Spinner LAYOUT: DATE: December 2017 PP:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Con vs Dist FIGURE 11-53 CONCENTRATION VERSUS DISTANCE FROM SOURCE – MANGANESE, STRONTIUM, SULFATE, TOTAL DISSOLVED SOLIDS, THALLIUM, AND VANADIUM ASH STORAGE AREA (SHEET 2 OF 3) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 200 400 600 800 1000 1200 1400 1600 1800 2000 0 200 400 600Manganese Concentration (µg/L)Distance from Source (ft) Manganese 0 50 100 150 200 250 300 350 400 450 500 0 200 400 600Strontium Concentration (µg/L)Distance from Source (ft) Strontium 0 100 200 300 400 500 600 700 0 200 400 600Sulfate Concentration (mg/L)Distance from Source (ft) Sulfate 0 200 400 600 800 1000 1200 1400 0 200 400 600TDS Concentration (mg/L)Distance from Source (ft) Total Dissolved Solids 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0 200 400 600Vanadium Concentration (µg/L)Distance from Source (ft) Vanadium 0.0 0.1 0.1 0.2 0.2 0.3 0.3 0.4 0.4 0.5 0.5 0 200 400 600Thallium Concentration (µg/L)Distance from Source (ft) Thallium 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com LEGEND Federal MCL Shallow Well Deep Well Bedrock Well 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. DRAWN BY: M. Youngblood PROJECT MANAGER: S. Spinner LAYOUT: DATE: December 2017 PP:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Con vs Dist Note: Wells used for each graph within this figure are consistent and are as follows: Source Area Shallow Flow Layer: CCR-7S Deep Flow Layer: CCR-7D Bedrock Flow Layer: AS-6BRA Roughly 400’ to 450’ from Source Area Shallow Flow Layer: AS-7S Deep Flow Layer : AS-7D Bedrock Flow Layer: MW-2DA Roughly 550’ to 650’ from Source Area Shallow Flow Layer : AS-2S Deep Flow Layer: AS-2D Bedrock Flow Layer: AS-2BR FIGURE 11-54 CONCENTRATION VERSUS DISTANCE FROM SOURCE – URANIUM ASH STORAGE AREA (SHEET 3 OF 3) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0.00 0.02 0.04 0.06 0.08 0.10 0.12 0 200 400 600Uranium Concentration (pCi/L)Distance from Source (ft) Uranium 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DATE: December 2017 LEGEND 15 NCAC 02L Standard or IMAC Shallow Well Deep Well Bedrock Well 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. Cr (VI) does not have a 2L standard. The 2L for Cr is displayed on the Cr (VI) diagram for interpretive purposes. FIGURE 11-55 CONCENTRATION VERSUS DISTANCE FROM SOURCE – pH, ARSENIC, BORON, CHROMIUM (VI), CHROMIUM, COBALT, AND IRON UNITS 1-4 INACTIVE ASH BASIN (SHEET 1 OF 3) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA PP:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Con vs Dist DRAWN BY: M. Youngblood PROJECT MANAGER: S. Spinner LAYOUT: 4.00 5.00 6.00 7.00 8.00 9.00 10.00 0 100 200 300 400 500 600pH Distance from Source (ft) pH 0 50 100 150 200 250 300 350 400 0 100 200 300 400 500 600Arsenic Concentration (µg/L)Distance from Source (ft) Arsenic 0 700 1400 0 100 200 300 400 500 600Boron Concentration (µg/L)Distance from Source (ft) Boron 0 10 20 30 40 50 60 0 100 200 300 400 500 600Chromium Concentration (µg/L)Distance from Source (ft) Chromium 0 20 40 60 80 100 120 140 0 100 200 300 400 500 600Cobalt Concentration (µg/L)Distance from Source (ft) Cobalt 0 2000 4000 6000 8000 10000 12000 14000 16000 0 100 200 300 400 500 600Iron Concentration (µg/L)Distance from Source (ft) Iron 0 2 4 6 8 10 12 0 100 200 300 400 500 600Chromium Concentration (µg/L)Distance from Source (ft) Chromium (VI) 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com LEGEND 15 NCAC 02L Standard or IMAC Shallow Well Deep Well Bedrock Well 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. DRAWN BY: M. Youngblood PROJECT MANAGER: S. Spinner LAYOUT: DATE: December 2017 PP:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Con vs Dist FIGURE 11-56 CONCENTRATION VERSUS DISTANCE FROM SOURCE – MANGANESE, STRONTIUM, SULFATE, TOTAL DISSOLVED SOLIDS, THALLIUM, AND VANADIUM UNITS 1-4 INACTIVE ASH BASIN (SHEET 2 OF 3) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 5000 10000 15000 20000 25000 0 100 200 300 400 500 600Manganese Concentration (µg/L)Distance from Source (ft) Manganese 0 500 1000 1500 2000 2500 0 100 200 300 400 500 600Strontium Concentration (µg/L)Distance from Source (ft) Strontium 0 50 100 150 200 250 300 0 100 200 300 400 500 600Sulfate Concentration (mg/L)Distance from Source (ft) Sulfate 0 100 200 300 400 500 600 0 100 200 300 400 500 600TDS Concentration (mg/L)Distance from Source (ft) Total Dissolved Solids 0.0 0.5 1.0 1.5 2.0 2.5 0 100 200 300 400 500 600Vanadium Concentration (µg/L)Distance from Source (ft) Vanadium 0.0 0.1 0.1 0.2 0.2 0.3 0.3 0.4 0.4 0.5 0 100 200 300 400 500 600Thallium Concentration (µg/L)Distance from Source (ft) Thallium Note: Wells used for each graph within this figure are consistent and are as follows: Source Area Shallow Flow Layer: IB-4S-SL Deep Flow Layer: IB-4D Bedrock Flow Layer: IB-4BR Roughly 250’ from Source Area Shallow Flow Layer: IB-3S Deep Flow Layer: IB-3D Roughly 550’ from Source Area Deep Flow Layer: GWA-29D Bedrock Flow Layer: GWA-29BRA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com LEGEND 15 NCAC 02L Standard or IMAC Shallow Well Deep Well Bedrock Well 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. DRAWN BY: M. Youngblood PROJECT MANAGER: S. Spinner LAYOUT: DATE: December 2017 PP:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Con vs Dist FIGURE 11-57 CONCENTRATION VERSUS DISTANCE FROM SOURCE NOTES UNITS 1-4 INACTIVE ASH BASIN (SHEET 3 OF 3) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DATE: December 2017 LEGEND 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. Cr (VI) does not have a 2L standard. The 2L for Cr is displayed on the Cr (VI) diagram for interpretive purposes. FIGURE 11-58 CONCENTRATION VERSUS DISTANCE FROM SOURCE – pH, ARSENIC, BORON, CHROMIUM (VI), CHROMIUM, COBALT, AND IRON UNIT 5 INACTIVE ASH BASIN (SHEET 1 OF 3) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA PP:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Con vs Dist DRAWN BY: M. Youngblood PROJECT MANAGER: S. Spinner LAYOUT: 0 2 4 6 8 10 12 0 200 400 600 800 1000Chromium Concentration (µg/L)Distance from Source (ft) Chromium (VI) 0 2 4 6 8 10 12 14 0 200 400 600 800 1000Chromium Concentration (µg/L)Distance from Source (ft) Chromium 0 20 40 60 80 100 120 140 0 200 400 600 800 1000Cobalt Concentration (µg/L)Distance from Source (ft) Cobalt 0 10000 20000 30000 40000 50000 60000 70000 80000 90000 0 200 400 600 800 1000Iron Concentration (µg/L)Distance from Source (ft) Iron 0 700 1400 0 200 400 600 800 1000Boron Concentration (µg/L)Distance from Source (ft) Boron 0 500 1000 1500 2000 2500 3000 3500 4000 0 200 400 600 800 1000Arsenic Concentration (µg/L)Distance from Source (ft) Arsenic 4.00 5.00 6.00 7.00 8.00 9.00 10.00 0 200 400 600 800 1000pH Distance from Source (ft) pH 15 NCAC 02L Standard or IMAC Shallow Well Deep Well Bedrock Well 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com LEGEND 15 NCAC 02L Standard or IMAC Shallow Well Deep Well Bedrock Well 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. DRAWN BY: M. Youngblood PROJECT MANAGER: S. Spinner LAYOUT: DATE: December 2017 PP:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Con vs Dist FIGURE 11-59 CONCENTRATION VERSUS DISTANCE FROM SOURCE – MANGANESE, STRONTIUM, SULFATE, TOTAL DISSOLVED SOLIDS, THALLIUM, AND VANADIUM UNIT 5 INACTIVE ASH BASIN (SHEET 2 OF 3) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 0 200 400 600 800 1000Vanadium Concentration (µg/L)Distance from Source (ft) Vanadium 0.0 0.2 0.4 0.6 0.8 1.0 1.2 0 200 400 600 800 1000Thallium Concentration (µg/L)Distance from Source (ft) Thallium 0 100 200 300 400 500 600 700 0 200 400 600 800 1000TDS Concentration (mg/L)Distance from Source (ft) Total Dissolved Solids 0 50 100 150 200 250 300 350 0 200 400 600 800 1000Sulfate Concentration (mg/L)Distance from Source (ft) Sulfate 0 200 400 600 800 1000 1200 1400 0 200 400 600 800 1000Strontium Concentration (µg/L)Distance from Source (ft) Strontium 0 1000 2000 3000 4000 5000 6000 7000 0 200 400 600 800 1000Manganese Concentration (µg/L)Distance from Source (ft) Manganese Note: Wells used for each graph within this figure are consistent and are as follows: Source Area Shallow Flow Layer: U5-07SL Deep Flow Layer: U5-02D Bedrock Flow Layer: U5-02BR Roughly 425’ to 600’ from Source Area Shallow Flow Layer: U5-04S Deep Flow Layer: U5-04D Roughly 675’ to 1075’ from Source Area Shallow Flow Layer: GWA-02S Deep Flow Layer: GWA-02BRU Bedrock Flow Layer: MW -38BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com LEGEND Federal MCL Shallow Well Deep Well Bedrock Well 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. DRAWN BY: M. Youngblood PROJECT MANAGER: S. Spinner LAYOUT: DATE: December 2017 PP:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Con vs Dist FIGURE 11-60 CONCENTRATION VERSUS DISTANCE FROM SOURCE – RADIUM AND URANIUM UNIT 5 INACTIVE ASH BASIN (SHEET 3 OF 3) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 1 2 3 4 5 6 0 200 400 600 800 1000Radium Concentration (µg/L)Distance from Source (ft) Radium 0.00 0.01 0.01 0.02 0.02 0.03 0.03 0.04 0 200 400 600 800 1000Uranium Concentration (pCi/L)Distance from Source (ft) Uranium AB-6SAB-6DAB-6BRAB-4SAB-4DAB-4BRAB-4SLAB-1SAB-1DGWA-21SGWA-21BRGWA-21BRUGWA-25SGWA-25DCLMW-6SAPROLITE ALLUVIUM FILL TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK BROAD RIVER ASH PORE WATER ASH PORE WATER ASH ASHWATER IN BASIN WATER IN BASIN WATER IN BASIN SAPROLITE SAPROLITE A A' (SOUTH)(NORTH) ACTIVE ASH BASIN TRANSITION ZONE 0.73 0.15 0.041 j 0.051 j 321 178 4250 0.095j 0.31 0.13 0.085j 0.09j 0.56 0.05jMW-10DMW-10SCCR-4D0.37 0.059 j 0.07 j NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTAA-ARS 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-61 ARSENIC ANALYTICAL RESULTS - CROSS SECTION A-A' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 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. CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR ARSENIC IS 10 μg/L. 4.PBTV FOR ARSENIC IS 1 μg/L WITHIN THE SHALLOW FLOW LAYER, 1.303 μg/L WITHIN THE DEEP FLOW LAYER, AND 1 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING AB-6SAB-6DAB-6BRAB-4SAB-4DAB-4BRAB-4SLAB-1SAB-1DGWA-21SGWA-21BRGWA-21BRUGWA-25SGWA-25DCLMW-6SAPROLITE ALLUVIUM FILL TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK BROAD RIVER ASH PORE WATER ASH PORE WATER ASH ASHWATER IN BASIN WATER IN BASIN WATER IN BASIN SAPROLITE SAPROLITE A A' (SOUTH)(NORTH) ACTIVE ASH BASIN TRANSITION ZONE <50 4310 1760 986 31.8 j 610 137 102 74.9 <50 <50 <50 <50 <50 700 700 700 MW-10DMW-10SCCR-4D253 161 50.3 NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTAA-BOR 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-62 BORON ANALYTICAL RESULTS - CROSS SECTION A-A' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 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. CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR BORON IS 700 μg/L. 4.PBTV FOR BORON IS 50 μg/L WITHIN THE SHALLOW, DEEP, AND BEDROCK FLOW LAYERS. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L BORON ISOPLETH IN µg/L (2L STANDARD = 700 µg/L) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING BORON ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) AB-6SAB-6DAB-6BRAB-4SAB-4DAB-4BRAB-4SLAB-1SAB-1DGWA-21SGWA-21BRGWA-21BRUGWA-25SGWA-25DCLMW-6SAPROLITE ALLUVIUM FILL TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK BROAD RIVER ASH PORE WATER ASH PORE WATER ASH ASHWATER IN BASIN WATER IN BASIN WATER IN BASIN SAPROLITE SAPROLITE A A' (SOUTH)(NORTH) ACTIVE ASH BASIN TRANSITION ZONE 0.045 0.11 0.034 0.81 <0.025 0.035 <0.025 0.13 0.16 j, D3 0.45 <0.12 D3 0.42 0.43 0.58MW-10DMW-10SCCR-4D0.61 0.032 NM NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTAA-CHR_HEX 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-63 HEXAVALENT CHROMIUM ANALYTICAL RESULTS - CROSS SECTION A-A' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 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. CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR HEXAVALENT CHROMIUM IS NOT ESTABLISHED. THE NORTH CAROLINA 2L FOR TOTAL CHROMIUM IS 10 μg/L AND IS USED FOR COMPARATIVE PURPOSES. 4.PBTV FOR HEXAVALENT CHROMIUM IS 0.452 μg/L WITHIN THE SHALLOW, 0.16 μg/L WITHIN THE DEEP FLOW LAYER, AND 0.12 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L HEXAVALENT CHROMIUM ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING AB-6SAB-6DAB-6BRAB-4SAB-4DAB-4BRAB-4SLAB-1SAB-1DGWA-21SGWA-21BRGWA-21BRUGWA-25SGWA-25DCLMW-6SAPROLITE ALLUVIUM FILL TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK BROAD RIVER ASH PORE WATER ASH PORE WATER ASH ASHWATER IN BASIN WATER IN BASIN WATER IN BASIN SAPROLITE SAPROLITE A A' (SOUTH)(NORTH) ACTIVE ASH BASIN TRANSITION ZONE 0.26 j 2.2 0.14 j 0.32 j 0.22 j 0.27 j 0.36 j 0.17 j 0.22 j 2.5 2.4 3 0.15 j <0.5MW-10DMW-10SCCR-4D0.69 0.32 j 0.42j NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTAA-CHR_TOT 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-64 TOTAL CHROMIUM ANALYTICAL RESULTS - CROSS SECTION A-A' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 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. CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR TOTAL CHROMIUM IS 10 μg/L. 4.PBTV FOR TOTAL CHROMIUM IS 3.968 μg/L WITHIN THE SHALLOW FLOW LAYER, 1.791 µg/L WITHIN THE DEEP FLOW LAYER, AND 3.567 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING AB-6SAB-6DAB-6BRAB-4SAB-4DAB-4BRAB-4SLAB-1SAB-1DGWA-21SGWA-21BRGWA-21BRUGWA-25SGWA-25DCLMW-6SAPROLITE ALLUVIUM FILL TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK BROAD RIVER ASH PORE WATER ASH PORE WATER ASH ASHWATER IN BASIN WATER IN BASIN WATER IN BASIN SAPROLITE SAPROLITE A A' (SOUTH)(NORTH) ACTIVE ASH BASIN TRANSITION ZONE 2.4 12.4 0.92 0.015 j 0.16 0.086 j 0.11 5.5 0.065 j 52.5 0.79 0.72 0.84 10.7MW-10DMW-10SCCR-4D1.8 2 0.8 NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTAA-COB 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-65 COBALT ANALYTICAL RESULTS - CROSS SECTION A-A' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 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. CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FOR COBALT IS 1 μg/L. 4.PBTV FOR COBALT IS 10.65 μg/L WITHIN THE SHALLOW FLOW LAYER, 5.1 μg/L WITHIN THE DEEP FLOW LAYER, AND 1.497 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L COBALT ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING AB-6SAB-6DAB-6BRAB-4SAB-4DAB-4BRAB-4SLAB-1SAB-1DGWA-21SGWA-21BRGWA-21BRUGWA-25SGWA-25DCLMW-6SAPROLITE ALLUVIUM FILL TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK BROAD RIVER ASH PORE WATER ASH PORE WATER ASH ASHWATER IN BASIN WATER IN BASIN WATER IN BASIN SAPROLITE SAPROLITE A A' (SOUTH)(NORTH) ACTIVE ASH BASIN TRANSITION ZONE 84.9 169 <50 4300 474 73.8 106 <50 12100 1080 8100 36.5 j 3560 4250 515 515MW-10DMW-10SCCR-4D51.7 96.9 NM NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTAA-IRON 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-66 IRON ANALYTICAL RESULTS - CROSS SECTION A-A' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 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. CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR IRON IS 300 μg/L. 4.PBTV FOR IRON IS 684 μg/L WITHIN THE SHALLOW FLOW LAYER, 515 μg/L WITHIN THE DEEP FLOW LAYER, AND 6220 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L IRON ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING AB-6SAB-6DAB-6BRAB-4SAB-4DAB-4BRAB-4SLAB-1SAB-1DGWA-21SGWA-21BRGWA-21BRUGWA-25SGWA-25DCLMW-6SAPROLITE ALLUVIUM FILL TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK BROAD RIVER ASH PORE WATER ASH PORE WATER ASH ASHWATER IN BASIN WATER IN BASIN WATER IN BASIN SAPROLITE SAPROLITE A A' (SOUTH)(NORTH) ACTIVE ASH BASIN TRANSITION ZONE 32.7 178 36.2 63.2 81.4 3.7 j 11.3 154 173 5350 2460 132 391 279 168.8 MW-10DMW-10SCCR-4D189 85.4 NM NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTAA-MANG 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-67 MANGANESE ANALYTICAL RESULTS - CROSS SECTION A-A' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 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. CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR MANGANESE IS 50 μg/L. 4.PBTV FOR MANGANESE IS 168.8 μg/L WITHIN THE SHALLOW FLOW LAYER, 78.31 μg/L WITHIN THE DEEP FLOW LAYER, AND 89.4 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L MANGANESE ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING AB-6SAB-6DAB-6BRAB-4SAB-4DAB-4BRAB-4SLAB-1SAB-1DGWA-21SGWA-21BRGWA-21BRUGWA-25SGWA-25DCLMW-6SAPROLITE ALLUVIUM FILL TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK BROAD RIVER ASH PORE WATER ASH PORE WATER ASH ASHWATER IN BASIN WATER IN BASIN WATER IN BASIN SAPROLITE SAPROLITE A A' (SOUTH)(NORTH) ACTIVE ASH BASIN TRANSITION ZONE 5.1 4.9 5.3 6.3 8.0 8.9 8.6 5.1 5.9 4.9 6.4 6.1 5.6 7.2MW-10DMW-10SCCR-4D5.0 4.8 5.4 NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTAA-PH 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-68 pH ANALYTICAL RESULTS - CROSS SECTION A-A' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 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. CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR pH IS A RANGE OF 6.5 - 8.5 S.U. 4.PBTV FOR ph IS A RANGE OF 4.4 - 6.1 S.U. WITHIN THE SHALLOW FLOW LAYER, 4.8 - 6.1 S.U. WITHIN THE DEEP FLOW LAYER AND 5.4 - 7.4 S.U. WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED. 2.14 CONCENTRATION IN STANDARD UNITS (S.U.) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH AB-6SAB-6DAB-6BRAB-4SAB-4DAB-4BRAB-4SLAB-1SAB-1DGWA-21SGWA-21BRGWA-21BRUGWA-25SGWA-25DCLMW-6SAPROLITE ALLUVIUM FILL TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK BROAD RIVER ASH PORE WATER ASH PORE WATER ASH ASHWATER IN BASIN WATER IN BASIN WATER IN BASIN SAPROLITE SAPROLITE A A' (SOUTH)(NORTH) ACTIVE ASH BASIN TRANSITION ZONE NA NA 0.733 0.779 1.1122 2.156 NA 1.544 4.64 1.784 NA NA NA NAMW-10DMW-10SCCR-4DNA NA 0.489 NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTAA-RAD_TOT 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-69 TOTAL RADIUM ANALYTICAL RESULTS - CROSS SECTION A-A' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 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. CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR TOTAL RADIUM HAS NOT BEEN ESTABLISHED. THE FEDERAL MCL FOR RADIUM IS 5 pCi/L. 4.PBTV FOR TOTAL RADIUM IS 2.58 pCi/L WITHIN THE SHALLOW FLOW LAYER, 1.51 pCi/L WITHIN THE DEEP FLOW LAYER, AND 3.1 pCi/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NA = NOT AVAILABLE; NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN pCi/L GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING AB-6SAB-6DAB-6BRAB-4SAB-4DAB-4BRAB-4SLAB-1SAB-1DGWA-21SGWA-21BRGWA-21BRUGWA-25SGWA-25DCLMW-6SAPROLITE ALLUVIUM FILL TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK BROAD RIVER ASH PORE WATER ASH PORE WATER ASH ASHWATER IN BASIN WATER IN BASIN WATER IN BASIN SAPROLITE SAPROLITE A A' (SOUTH)(NORTH) ACTIVE ASH BASIN TRANSITION ZONE 23.1 17 29.9 104 1210 998 1760 8.7 79.2 23.1 213 145 260 121MW-10DMW-10SCCR-4D59.2 38.3 NM NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTAA-STRO 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-70 STRONTIUM ANALYTICAL RESULTS - CROSS SECTION A-A' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 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. CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR STRONTIUM HAS NOT BEEN ESTABLISHED. 4.PBTV FOR STRONTIUM IS 36.73 μg/L WITHIN THE SHALLOW FLOW LAYER, 56.14 μg/L WITHIN THE DEEP FLOW LAYER, AND 107.1 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L STRONTIUM ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING AB-6SAB-6DAB-6BRAB-4SAB-4DAB-4BRAB-4SLAB-1SAB-1DGWA-21SGWA-21BRGWA-21BRUGWA-25SGWA-25DCLMW-6SAPROLITE ALLUVIUM FILL TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK BROAD RIVER ASH PORE WATER ASH PORE WATER ASH ASHWATER IN BASIN WATER IN BASIN WATER IN BASIN SAPROLITE SAPROLITE A A' (SOUTH)(NORTH) ACTIVE ASH BASIN TRANSITION ZONE <1 <1 0.89 j 5.5 155 86.7 12.8 <1 4.3 2.6 26.9 72.8 0.6j 87.5MW-10DMW-10SCCR-4D62.4 14.2 20.1 NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTAA-SULF 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-71 SULFATE ANALYTICAL RESULTS - CROSS SECTION A-A' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 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. CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR SULFATE IS 250 mg/L. 4.PBTV FOR SULFATE IS 1.169 mg/L WITHIN THE SHALLOW FLOW LAYER, 10 mg/L WITHIN THE DEEP FLOW LAYER, AND 15.1 mg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING AB-6SAB-6DAB-6BRAB-4SAB-4DAB-4BRAB-4SLAB-1SAB-1DGWA-21SGWA-21BRGWA-21BRUGWA-25SGWA-25DCLMW-6SAPROLITE ALLUVIUM FILL TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK BROAD RIVER ASH PORE WATER ASH PORE WATER ASH ASHWATER IN BASIN WATER IN BASIN WATER IN BASIN SAPROLITE SAPROLITE A A' (SOUTH)(NORTH) ACTIVE ASH BASIN TRANSITION ZONE <25 36 47 85 484 294 156 <25 80 63 220 177 153 245MW-10DMW-10SCCR-4D113 34 43 NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTAA-TDS 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-72 TOTAL DISSOLVED SOLIDS ANALYTICAL RESULTS - CROSS SECTION A-A' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 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. CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR TOTAL DISSOLVED SOLIDS (TDS) IS 500 mg/L. 4.PBTV FOR TOTAL DISSOLVED SOLIDS (TDS) IS 75.47 mg/L WITHIN THE SHALLOW FLOW LAYER, 70.98 mg/L WITHIN THE DEEP FLOW LAYER, AND 120 mg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING AB-6SAB-6DAB-6BRAB-4SAB-4DAB-4BRAB-4SLAB-1SAB-1DGWA-21SGWA-21BRGWA-21BRUGWA-25SGWA-25DCLMW-6SAPROLITE ALLUVIUM FILL TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK BROAD RIVER ASH PORE WATER ASH PORE WATER ASH ASHWATER IN BASIN WATER IN BASIN WATER IN BASIN SAPROLITE SAPROLITE A A' (SOUTH)(NORTH) ACTIVE ASH BASIN TRANSITION ZONE 0.031 j 0.039 j 0.067 j 0.027 j 0.19 0.084 j 0.092 j <0.1 0.44 <0.1 0.16 <0.1 0.12 0.065 j 0.2 0.2MW-10DMW-10SCCR-4D0.12 0.073 j 0.063 j NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTAA-THAL 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-73 THALLIUM ANALYTICAL RESULTS - CROSS SECTION A-A' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 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. CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FOR THALLIUM IS 0.2 μg/L. 4.PBTV FOR THALLIUM IS 0.117 μg/L WITHIN THE SHALLOW FLOW LAYER, 0.063 μg/L WITHIN THE DEEP FLOW LAYER, AND 0.2 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L THALLIUM ISOPLETH IN µg/L (IMAC = 0.2 µg/L) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING AB-6SAB-6DAB-6BRAB-4SAB-4DAB-4BRAB-4SLAB-1SAB-1DGWA-21SGWA-21BRGWA-21BRUGWA-25SGWA-25DCLMW-6SAPROLITE ALLUVIUM FILL TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK BROAD RIVER ASH PORE WATER ASH PORE WATER ASH ASHWATER IN BASIN WATER IN BASIN WATER IN BASIN SAPROLITE SAPROLITE A A' (SOUTH)(NORTH) ACTIVE ASH BASIN TRANSITION ZONE NA NA 0.0023 0.0024 0.0279 NA <0.0005 <0.0005 0.00012 j NA NA NA NA <0.0005MW-10DMW-10SCCR-4DNA NA NM NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTAA-URAN_TOT 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-74 TOTAL URANIUM ANALYTICAL RESULTS - CROSS SECTION A-A' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 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. CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR TOTAL URANIUM HAS NOT BEEN ESTABLISHED. THE FEDERAL MCL FOR URANIUM IS 0.03 pCi/L. 4.PBTV FOR TOTAL URANIUM IS 0.0005 μg/L WITHIN THE SHALLOW, DEEP, AND BEDROCK FLOW LAYERS. 5.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. 6.NA = NOT AVAILABLE; NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/mL GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING AB-6SAB-6DAB-6BRAB-4SAB-4DAB-4BRAB-4SLAB-1SAB-1DGWA-21SGWA-21BRGWA-21BRUGWA-25SGWA-25DCLMW-6SAPROLITE ALLUVIUM FILL TRANSITION ZONE TRANSITION ZONE BEDROCK BEDROCK BEDROCK BROAD RIVER ASH PORE WATER ASH PORE WATER ASH ASHWATER IN BASIN WATER IN BASIN WATER IN BASIN SAPROLITE SAPROLITE A A' (SOUTH)(NORTH) ACTIVE ASH BASIN TRANSITION ZONE 0.27 j, B 0.28 j 0.085 j 0.07 j 30.5 25.3 17 0.13 j <0.3 0.22 j, B 0.15 j, B <0.3 <0.3 0.56MW-10DMW-10SCCR-4D0.13 j 0.094 j 43 NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTAA-VANA 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-75 VANADIUM ANALYTICAL RESULTS - CROSS SECTION A-A' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 75 150 300 HORIZONTAL SCALE: 1" = 300' VERTICAL SCALE: 1" = 60' 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. CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FOR VANADIUM IS 0.3 μg/L. 4.PBTV FOR VANADIUM IS 0.8 μg/L WITHIN THE SHALLOW FLOW LAYER, 1.095 µg/L DEEP FLOW LAYER, AND 0.37 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L VANADIUM ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING GWA-38SGWA-38DGWA-14SGWA-14DIB-21IB-2S-SLIB-2BRUGWA-11SGWA-11BRUBEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE SAPROLITE SAPROLITE ALLUVIUM FILL ASH ASH PORE WATER FILL BROAD RIVER UNITS 1-4 INACTIVE ASH BASIN H H' (SOUTHWEST)(NORTHEAST)GWA-14BRIB-2AL*0.083j NA 0.21 0.14 0.74 189 0.77 0.54 j+ <0.5 0.99 0.2 D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTHH-ARS 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-76 ARSENIC ANALYTICAL RESULTS - CROSS SECTION H-H' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR ARSENIC IS 10 μg/L. 4.PBTV FOR ARSENIC IS 1 μg/L WITHIN THE SHALLOW FLOW LAYER, 1.303 μg/L WITHIN THE DEEP FLOW LAYER, AND 1 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NA = NOT AVAILABLE. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING CROSS SECTION LOCATION H' H NOTE: CROSS SECTION H-H' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-38SGWA-38DGWA-14SGWA-14DIB-21IB-2S-SLIB-2BRUGWA-11SGWA-11BRUBEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE SAPROLITE SAPROLITE ALLUVIUM FILL ASH ASH PORE WATER FILL BROAD RIVER UNITS 1-4 INACTIVE ASH BASIN H H' (SOUTHWEST)(NORTHEAST)GWA-14BRIB-2AL*120 NA 67.6 <50 240 480 99 <50 396 58.2 397 D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTHH-BOR 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-77 BORON ANALYTICAL RESULTS - CROSS SECTION H-H' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR BORON IS 700 μg/L. 4.PBTV FOR BORON IS 50 μg/L WITHIN THE SHALLOW, DEEP, AND BEDROCK FLOW LAYERS. 5.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. 6.NA = NOT AVAILABLE. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L GENERALIZED WATER TABLE GENERALIZED GROUNDWATER FLOW DIRECTION CROSS SECTION LOCATION H' H NOTE: CROSS SECTION H-H' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. BORON ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND MW-102S ABANDONED WELL/ GEOTECHNICAL BORING GWA-38SGWA-38DGWA-14SGWA-14DIB-21IB-2S-SLIB-2BRUGWA-11SGWA-11BRUBEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE SAPROLITE SAPROLITE ALLUVIUM FILL ASH ASH PORE WATER FILL BROAD RIVER UNITS 1-4 INACTIVE ASH BASIN H H' (SOUTHWEST)(NORTHEAST)GWA-14BRIB-2AL*0.2 NA 0.71 0.014 j NA NA NA NA 0.035 0.15 1.1 D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTHH-CHR_HEX 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-78 HEXAVALENT CHROMIUM ANALYTICAL RESULTS - CROSS SECTION H-H' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR HEXAVALENT CHROMIUM IS NOT ESTABLISHED. THE NORTH CAROLINA 2L FOR TOTAL CHROMIUM IS 10 μg/L AND IS USED FOR COMPARATIVE PURPOSES. 4.PBTV FOR HEXAVALENT CHROMIUM IS 0.452 μg/L WITHIN THE SHALLOW, 0.16 μg/L WITHIN THE DEEP FLOW LAYER, AND 0.12 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NA = NOT AVAILABLE. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L HEXAVALENT CHROMIUM ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION H' H NOTE: CROSS SECTION H-H' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-38SGWA-38DGWA-14SGWA-14DIB-21IB-2S-SLIB-2BRUGWA-11SGWA-11BRUBEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE SAPROLITE SAPROLITE ALLUVIUM FILL ASH ASH PORE WATER FILL BROAD RIVER UNITS 1-4 INACTIVE ASH BASIN H H' (SOUTHWEST)(NORTHEAST)GWA-14BRIB-2AL*1.3 NA 169 1.6 0.98 0.37 j 0.56 j+ 0.22 j 3.2 10.9 1.6 j+ 10 10 10 D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTHH-CHR_TOT 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-79 TOTAL CHROMIUM ANALYTICAL RESULTS - CROSS SECTION H-H' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR TOTAL CHROMIUM IS 10 μg/L. 4.PBTV FOR TOTAL CHROMIUM IS 3.968 μg/L WITHIN THE SHALLOW FLOW LAYER, 1.791 µg/L WITHIN THE DEEP FLOW LAYER, AND 3.567 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NA = NOT AVAILABLE. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L TOTAL CHROMIUM ISOPLETH IN µg/L (2L STANDARD = 10 µg/L) GENERALIZED WATER TABLE GENERALIZED GROUNDWATER FLOW DIRECTION CROSS SECTION LOCATION H' H NOTE: CROSS SECTION H-H' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND MW-102S ABANDONED WELL/ GEOTECHNICAL BORING GWA-38SGWA-38DGWA-14SGWA-14DIB-21IB-2S-SLIB-2BRUGWA-11SGWA-11BRUBEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE SAPROLITE SAPROLITE ALLUVIUM FILL ASH ASH PORE WATER FILL BROAD RIVER UNITS 1-4 INACTIVE ASH BASIN H H' (SOUTHWEST)(NORTHEAST)GWA-14BRIB-2AL*3.8 NA 4.2 0.47 0.061 j 0.2 j 34.3 15.8 <0.5 1.1 0.13 D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTHH-COB 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-80 COBALT ANALYTICAL RESULTS - CROSS SECTION H-H' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FOR COBALT IS 1 μg/L. 4.PBTV FOR COBALT IS 10.65 μg/L WITHIN THE SHALLOW FLOW LAYER, 5.1 μg/L WITHIN THE DEEP FLOW LAYER, AND 1.497 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.NA = NOT AVAILABLE. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L COBALT ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING CROSS SECTION LOCATION H' H NOTE: CROSS SECTION H-H' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-38SGWA-38DGWA-14SGWA-14DIB-21IB-2S-SLIB-2BRUGWA-11SGWA-11BRUBEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE SAPROLITE SAPROLITE ALLUVIUM FILL ASH ASH PORE WATER FILL BROAD RIVER UNITS 1-4 INACTIVE ASH BASIN H H' (SOUTHWEST)(NORTHEAST)GWA-14BRIB-2AL*408 NA 1290 31.3 j <50 3900 200 j+ 190 j+ 435 520 390 D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTHH-IRON 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-81 IRON ANALYTICAL RESULTS - CROSS SECTION H-H' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR IRON IS 300 μg/L. 4.PBTV FOR IRON IS 684 μg/L WITHIN THE SHALLOW FLOW LAYER, 515 μg/L WITHIN THE DEEP FLOW LAYER, AND 6220 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.NA = NOT AVAILABLE. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L IRON ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION H' H NOTE: CROSS SECTION H-H' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-38SGWA-38DGWA-14SGWA-14DIB-21IB-2S-SLIB-2BRUGWA-11SGWA-11BRUBEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE SAPROLITE SAPROLITE ALLUVIUM FILL ASH ASH PORE WATER FILL BROAD RIVER UNITS 1-4 INACTIVE ASH BASIN H H' (SOUTHWEST)(NORTHEAST)GWA-14BRIB-2AL*452 NA 92.3 12.2 118 1000 1300 1500 99 2130 857 D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTHH-MANG 1/25/2018 01/29/2018 2:20 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-82 MANGANESE ANALYTICAL RESULTS - CROSS SECTION H-H' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR MANGANESE IS 50 μg/L. 4.PBTV FOR MANGANESE IS 168.8 μg/L WITHIN THE SHALLOW FLOW LAYER, 78.31 μg/L WITHIN THE DEEP FLOW LAYER, AND 89.4 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.NA = NOT AVAILABLE. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L MANGANESE ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION H' H NOTE: CROSS SECTION H-H' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-38SGWA-38DGWA-14SGWA-14DIB-21IB-2S-SLIB-2BRUGWA-11SGWA-11BRUBEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE SAPROLITE SAPROLITE ALLUVIUM FILL ASH ASH PORE WATER FILL BROAD RIVER UNITS 1-4 INACTIVE ASH BASIN H H' (SOUTHWEST)(NORTHEAST)GWA-14BRIB-2AL*5.3 NA 5.8 5.9 8.8 6.9 7.7 5.9 8.0 5.8 6.2 D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTHH-PH 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-83 pH ANALYTICAL RESULTS - CROSS SECTION H-H' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION H' H NOTE: CROSS SECTION H-H' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR pH IS A RANGE OF 6.5 - 8.5 S.U. 4.PBTV FOR ph IS A RANGE OF 4.4 - 6.1 S.U. WITHIN THE SHALLOW FLOW LAYER, 4.8 - 6.1 S.U. WITHIN THE DEEP FLOW LAYER AND 5.4 - 7.4 S.U. WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NA = NOT AVAILABLE.2.14 CONCENTRATION IN STANDARD UNITS (S.U.) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH GWA-38SGWA-38DGWA-14SGWA-14DIB-21IB-2S-SLIB-2BRUGWA-11SGWA-11BRUBEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE SAPROLITE SAPROLITE ALLUVIUM FILL ASH ASH PORE WATER FILL BROAD RIVER UNITS 1-4 INACTIVE ASH BASIN H H' (SOUTHWEST)(NORTHEAST)GWA-14BRIB-2AL*0.772 NA NA NA NA NA NA 0.428 4.49 NA NA D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTHH-RAD_TOT 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-84 TOTAL RADIUM ANALYTICAL RESULTS - CROSS SECTION H-H' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR TOTAL RADIUM HAS NOT BEEN ESTABLISHED. THE FEDERAL MCL FOR RADIUM IS 5 pCi/L. 4.PBTV FOR TOTAL RADIUM IS 2.58 pCi/L WITHIN THE SHALLOW FLOW LAYER, 1.51 pCi/L WITHIN THE DEEP FLOW LAYER, AND 3.1 pCi/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NA = NOT AVAILABLE. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN pCi/L GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION H' H NOTE: CROSS SECTION H-H' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-38SGWA-38DGWA-14SGWA-14DIB-21IB-2S-SLIB-2BRUGWA-11SGWA-11BRUBEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE SAPROLITE SAPROLITE ALLUVIUM FILL ASH ASH PORE WATER FILL BROAD RIVER UNITS 1-4 INACTIVE ASH BASIN H H' (SOUTHWEST)(NORTHEAST)GWA-14BRIB-2AL*106 NA 151 263 115 980 430 270 190 532 326 D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTHH-STRO 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-85 STRONTIUM ANALYTICAL RESULTS - CROSS SECTION H-H' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR STRONTIUM HAS NOT BEEN ESTABLISHED. 4.PBTV FOR STRONTIUM IS 36.73 μg/L WITHIN THE SHALLOW FLOW LAYER, 56.14 μg/L WITHIN THE DEEP FLOW LAYER, AND 107.1 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NA = NOT AVAILABLE. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L STRONTIUM ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION H' H NOTE: CROSS SECTION H-H' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-38SGWA-38DGWA-14SGWA-14DIB-21IB-2S-SLIB-2BRUGWA-11SGWA-11BRUBEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE SAPROLITE SAPROLITE ALLUVIUM FILL ASH ASH PORE WATER FILL BROAD RIVER UNITS 1-4 INACTIVE ASH BASIN H H' (SOUTHWEST)(NORTHEAST)GWA-14BRIB-2AL*171 NA 143 225 140 269 84.9 51.5 31.6 120 134 D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTHH-SULF 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-86 SULFATE ANALYTICAL RESULTS - CROSS SECTION H-H' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR SULFATE IS 250 mg/L. 4.PBTV FOR SULFATE IS 1.169 mg/L WITHIN THE SHALLOW FLOW LAYER, 10 mg/L WITHIN THE DEEP FLOW LAYER, AND 15.1 mg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NA = NOT AVAILABLE. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION H' H NOTE: CROSS SECTION H-H' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-38SGWA-38DGWA-14SGWA-14DIB-21IB-2S-SLIB-2BRUGWA-11SGWA-11BRUBEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE SAPROLITE SAPROLITE ALLUVIUM FILL ASH ASH PORE WATER FILL BROAD RIVER UNITS 1-4 INACTIVE ASH BASIN H H' (SOUTHWEST)(NORTHEAST)GWA-14BRIB-2AL*291 NA 358 447 140 596 314 466 171 278 336 D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTHH-TDS 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-87 TOTAL DISSOLVED SOLIDS ANALYTICAL RESULTS - CROSS SECTION H-H' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR TOTAL DISSOLVED SOLIDS (TDS) IS 500 mg/L. 4.PBTV FOR TOTAL DISSOLVED SOLIDS (TDS) IS 75.47 mg/L WITHIN THE SHALLOW FLOW LAYER, 70.98 mg/L WITHIN THE DEEP FLOW LAYER, AND 120 mg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NA = NOT AVAILABLE. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION H' H NOTE: CROSS SECTION H-H' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-38SGWA-38DGWA-14SGWA-14DIB-21IB-2S-SLIB-2BRUGWA-11SGWA-11BRUBEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE SAPROLITE SAPROLITE ALLUVIUM FILL ASH ASH PORE WATER FILL BROAD RIVER UNITS 1-4 INACTIVE ASH BASIN H H' (SOUTHWEST)(NORTHEAST)GWA-14BRIB-2AL*0.028 j NA 0.12 0.039 j <0.1 <0.1 0.48 0.033 j <0.1 0.038 j <0.1 0.2 D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTHH-THAL 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-88 THALLIUM ANALYTICAL RESULTS - CROSS SECTION H-H' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FOR THALLIUM IS 0.2 μg/L. 4.PBTV FOR THALLIUM IS 0.117 μg/L WITHIN THE SHALLOW FLOW LAYER, 0.063 μg/L WITHIN THE DEEP FLOW LAYER, AND 0.2 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NA = NOT AVAILABLE. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L THALLIUM ISOPLETH IN µg/L (IMAC = 0.2 µg/L) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION H' H NOTE: CROSS SECTION H-H' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-38SGWA-38DGWA-14SGWA-14DIB-21IB-2S-SLIB-2BRUGWA-11SGWA-11BRUBEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE SAPROLITE SAPROLITE ALLUVIUM FILL ASH ASH PORE WATER FILL BROAD RIVER UNITS 1-4 INACTIVE ASH BASIN H H' (SOUTHWEST)(NORTHEAST)GWA-14BRIB-2AL*<0.0005 NA NA NA NA NA NA NA NA <0.0005 0.00024 j D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTHH-URAN_TOT 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-89 TOTAL URANIUM ANALYTICAL RESULTS - CROSS SECTION H-H' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR TOTAL URANIUM HAS NOT BEEN ESTABLISHED. THE FEDERAL MCL FOR URANIUM IS 0.03 pCi/L. 4.PBTV FOR TOTAL URANIUM IS 0.0005 μg/L WITHIN THE SHALLOW, DEEP, AND BEDROCK FLOW LAYERS. 5.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. 6.NA = NOT AVAILABLE. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/mL GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION H' H NOTE: CROSS SECTION H-H' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-38SGWA-38DGWA-14SGWA-14DIB-21IB-2S-SLIB-2BRUGWA-11SGWA-11BRUBEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE SAPROLITE SAPROLITE ALLUVIUM FILL ASH ASH PORE WATER FILL BROAD RIVER UNITS 1-4 INACTIVE ASH BASIN H H' (SOUTHWEST)(NORTHEAST)GWA-14BRIB-2AL*0.41 NA 1.5 0.42 0.41 0.77 j <1 1 j+ <1 1.1 <0.3 D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTHH-VANA 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-90 VANADIUM ANALYTICAL RESULTS - CROSS SECTION H-H' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FOR VANADIUM IS 0.3 μg/L. 4.PBTV FOR VANADIUM IS 0.8 μg/L WITHIN THE SHALLOW FLOW LAYER, 1.095 µg/L DEEP FLOW LAYER, AND 0.37 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.NA = NOT AVAILABLE. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L VANADIUM ISOPLETH IN µg/L (IMAC = 0.3 µg/L) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION H' H NOTE: CROSS SECTION H-H' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-33SGWA-20SGWA-20DAB-2SAB-2DAB-3SAB-3BRUAB-3BRAB-3IAB-3SLAB-4SAB-4BRAB-4SLAB-4DGWA-24SGWA-24DGWA-24BRASH PORE WATER ASH ASH ASH PORE WATER ASH PORE WATER ASH FILL SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE ACTIVE ASH BASIN K K' (WEST)(EAST) FILL FILL FILL GWA-20BR0.1 0.65 0.31 0.11 0.16 128 870 3.5 178 4250 0.095 j 0.31 0.043 j <0.1 <0.1AB-3BRUAAB-3SLANM NM 0.25 SUCK CREEK NM NMAB-2BRO(UNKNOWN CONSTRUCTION)D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTKK-ARS 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-91 ARSENIC ANALYTICAL RESULTS - CROSS SECTION K-K' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR ARSENIC IS 10 μg/L. 4.PBTV FOR ARSENIC IS 1 μg/L WITHIN THE SHALLOW FLOW LAYER, 1.303 μg/L WITHIN THE DEEP FLOW LAYER, AND 1 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 60 120 240 HORIZONTAL SCALE: 1" = 240' VERTICAL SCALE: 1" = 48' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION K' K NOTE: CROSS SECTION K-K' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-33SGWA-20SGWA-20DAB-2SAB-2DAB-3SAB-3BRUAB-3BRAB-3IAB-3SLAB-4SAB-4BRAB-4SLAB-4DGWA-24SGWA-24DGWA-24BRASH PORE WATER ASH ASH ASH PORE WATER ASH PORE WATER ASH FILL SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE ACTIVE ASH BASIN K K' (WEST)(EAST) FILL FILL FILL GWA-20BR817 257 223 162 182 2500 948 68.4 1760 986 <50 31.8 j <50 <50 <50 700 AB-3BRUAAB-3SLANM NM 43.9j SUCK CREEK AB-2BRO(UNKNOWN CONSTRUCTION)NM NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTKK-BOR 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-92 BORON ANALYTICAL RESULTS - CROSS SECTION K-K' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR BORON IS 700 μg/L. 4.PBTV FOR BORON IS 50 μg/L WITHIN THE SHALLOW, DEEP, AND BEDROCK FLOW LAYERS. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L BORON ISOPLETH IN µg/L (2L STANDARD = 700 µg/L) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 60 120 240 HORIZONTAL SCALE: 1" = 240' VERTICAL SCALE: 1" = 48' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION K' K NOTE: CROSS SECTION K-K' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-33SGWA-20SGWA-20DAB-2SAB-2DAB-3SAB-3BRUAB-3BRAB-3IAB-3SLAB-4SAB-4BRAB-4SLAB-4DGWA-24SGWA-24DGWA-24BRASH PORE WATER ASH ASH ASH PORE WATER ASH PORE WATER ASH FILL SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE ACTIVE ASH BASIN K K' (WEST)(EAST) FILL FILL FILL GWA-20BR0.33 0.6 <0.12 D3 <0.25 D3 <0.25 D3, M6 <0.12 D3 0.044 j 0.9 0.035 <0.025 0.13 0.16 j, D3 0.019 j 0.027 0.021 jAB-3BRUAAB-3SLA0.6 SUCK CREEK NM NMAB-2BRO(UNKNOWN CONSTRUCTION)NM NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTKK-CHR_HEX 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-93 HEXAVALENT CHROMIUM ANALYTICAL RESULTS - CROSS SECTION K-K' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR HEXAVALENT CHROMIUM IS NOT ESTABLISHED. THE NORTH CAROLINA 2L FOR TOTAL CHROMIUM IS 10 μg/L AND IS USED FOR COMPARATIVE PURPOSES. 4.PBTV FOR HEXAVALENT CHROMIUM IS 0.452 μg/L WITHIN THE SHALLOW, 0.16 μg/L WITHIN THE DEEP FLOW LAYER, AND 0.12 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM= NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L HEXAVALENT CHROMIUM ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 60 120 240 HORIZONTAL SCALE: 1" = 240' VERTICAL SCALE: 1" = 48' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION K' K NOTE: CROSS SECTION K-K' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-33SGWA-20SGWA-20DAB-2SAB-2DAB-3SAB-3BRUAB-3BRAB-3IAB-3SLAB-4SAB-4BRAB-4SLAB-4DGWA-24SGWA-24DGWA-24BRASH PORE WATER ASH ASH ASH PORE WATER ASH PORE WATER ASH FILL SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE ACTIVE ASH BASIN K K' (WEST)(EAST) FILL FILL FILL GWA-20BR0.33 j 0.49 j 1.6 0.47 j 0.42 j 21.4 0.42 j 0.27 j 0.36 j 0.17 j 0.22 j 0.32 j <0.5 0.25 j 7.6 AB-3BRUAAB-3SLASUCK CREEK NM NMAB-2BRO(UNKNOWN CONSTRUCTION)NM NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTKK-CHR_TOT 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-94 TOTAL CHROMIUM ANALYTICAL RESULTS - CROSS SECTION K-K' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR TOTAL CHROMIUM IS 10 μg/L. 4.PBTV FOR TOTAL CHROMIUM IS 3.968 μg/L WITHIN THE SHALLOW FLOW LAYER, 1.791 µg/L WITHIN THE DEEP FLOW LAYER, AND 3.567 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 60 120 240 HORIZONTAL SCALE: 1" = 240' VERTICAL SCALE: 1" = 48' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION K' K NOTE: CROSS SECTION K-K' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-33SGWA-20SGWA-20DAB-2SAB-2DAB-3SAB-3BRUAB-3BRAB-3IAB-3SLAB-4SAB-4BRAB-4SLAB-4DGWA-24SGWA-24DGWA-24BRASH PORE WATER ASH ASH ASH PORE WATER ASH PORE WATER ASH FILL SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE ACTIVE ASH BASIN K K' (WEST)(EAST) FILL FILL FILL GWA-20BR81.3 0.32 11.5 36.2 0.44 0.23 0.27 0.086 j 0.11 5.5 0.065 j 10.4 0.2 0.2AB-3BRUAAB-3SLASUCK CREEK 7.1 NM NMAB-2BRO(UNKNOWN CONSTRUCTION)NM NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTKK-COB 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-95 COBALT ANALYTICAL RESULTS - CROSS SECTION K-K' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FOR COBALT IS 1 μg/L. 4.PBTV FOR COBALT IS 10.65 μg/L WITHIN THE SHALLOW FLOW LAYER, 5.1 μg/L WITHIN THE DEEP FLOW LAYER, AND 1.497 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L COBALT ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 60 120 240 HORIZONTAL SCALE: 1" = 240' VERTICAL SCALE: 1" = 48' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION K' K NOTE: CROSS SECTION K-K' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-33SGWA-20SGWA-20DAB-2SAB-2DAB-3SAB-3BRUAB-3BRAB-3IAB-3SLAB-4SAB-4BRAB-4SLAB-4DGWA-24SGWA-24DGWA-24BRASH PORE WATER ASH ASH ASH PORE WATER ASH PORE WATER ASH FILL SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE ACTIVE ASH BASIN K K' (WEST)(EAST) FILL FILL FILL GWA-20BR1530 6750 2580 22900 10600 624 308 j+ 64.5 73.8 106 <50 12100 45.1 j <50 <50AB-3BRUAAB-3SLASUCK CREEK NM NMAB-2BRO(UNKNOWN CONSTRUCTION)NM NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTKK-IRON 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-96 IRON ANALYTICAL RESULTS - CROSS SECTION K-K' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR IRON IS 300 μg/L. 4.PBTV FOR IRON IS 684 μg/L WITHIN THE SHALLOW FLOW LAYER, 515 μg/L WITHIN THE DEEP FLOW LAYER, AND 6220 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L IRON ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 60 120 240 HORIZONTAL SCALE: 1" = 240' VERTICAL SCALE: 1" = 48' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION K' K NOTE: CROSS SECTION K-K' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-33SGWA-20SGWA-20DAB-2SAB-2DAB-3SAB-3BRUAB-3BRAB-3IAB-3SLAB-4SAB-4BRAB-4SLAB-4DGWA-24SGWA-24DGWA-24BRASH PORE WATER ASH ASH ASH PORE WATER ASH PORE WATER ASH FILL SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE ACTIVE ASH BASIN K K' (WEST)(EAST) FILL FILL FILL GWA-20BR5990 467 1570 3580 9590 356 96.8 132 3.7 j 11.3 154 173 75.4 6.7 5 jAB-3BRUAAB-3SLASUCK CREEK NM NMAB-2BRO(UNKNOWN CONSTRUCTION)NM NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTKK-MANG 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-97 MANGANESE ANALYTICAL RESULTS - CROSS SECTION K-K' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR MANGANESE IS 50 μg/L. 4.PBTV FOR MANGANESE IS 168.8 μg/L WITHIN THE SHALLOW FLOW LAYER, 78.31 μg/L WITHIN THE DEEP FLOW LAYER, AND 89.4 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L MANGANESE ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 60 120 240 HORIZONTAL SCALE: 1" = 240' VERTICAL SCALE: 1" = 48' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION K' K NOTE: CROSS SECTION K-K' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-33SGWA-20SGWA-20DAB-2SAB-2DAB-3SAB-3BRUAB-3BRAB-3IAB-3SLAB-4SAB-4BRAB-4SLAB-4DGWA-24SGWA-24DGWA-24BRASH PORE WATER ASH ASH ASH PORE WATER ASH PORE WATER ASH FILL SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE ACTIVE ASH BASIN K K' (WEST)(EAST) FILL FILL FILL GWA-20BR5.7 8.7 6.2 6.3 5.8 7.7 8.0 6.6 8.9 8.6 5.1 5.9 5.2 5.5 5.9AB-3BRUAAB-3SLASUCK CREEK NM NMAB-2BRO(UNKNOWN CONSTRUCTION)NM NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTKK-PH 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-98 pH ANALYTICAL RESULTS - CROSS SECTION K-K' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR pH IS A RANGE OF 6.5 - 8.5 S.U. 4.PBTV FOR ph IS A RANGE OF 4.4 - 6.1 S.U. WITHIN THE SHALLOW FLOW LAYER, 4.8 - 6.1 S.U. WITHIN THE DEEP FLOW LAYER AND 5.4 - 7.4 S.U. WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED. 2.14 CONCENTRATION IN STANDARD UNITS (S.U.) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 0 60 120 240 HORIZONTAL SCALE: 1" = 240' VERTICAL SCALE: 1" = 48' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION K' K NOTE: CROSS SECTION K-K' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-33SGWA-20SGWA-20DAB-2SAB-2DAB-3SAB-3BRUAB-3BRAB-3IAB-3SLAB-4SAB-4BRAB-4SLAB-4DGWA-24SGWA-24DGWA-24BRASH PORE WATER ASH ASH ASH PORE WATER ASH PORE WATER ASH FILL SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE ACTIVE ASH BASIN K K' (WEST)(EAST) FILL FILL FILL GWA-20BR0.904 2.807 0.4126 NA NA 1.052 NA NA 0.779 1.1122 NA 2.156 NA NA NAAB-3BRUAAB-3SLASUCK CREEK NM NMAB-2BRO(UNKNOWN CONSTRUCTION)NM NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTKK-RAD_TOT 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-99 TOTAL RADIUM ANALYTICAL RESULTS - CROSS SECTION K-K' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR TOTAL RADIUM HAS NOT BEEN ESTABLISHED. THE FEDERAL MCL FOR RADIUM IS 5 pCi/L. 4.PBTV FOR TOTAL RADIUM IS 2.58 pCi/L WITHIN THE SHALLOW FLOW LAYER, 1.51 pCi/L WITHIN THE DEEP FLOW LAYER, AND 3.1 pCi/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NA = NOT AVAILABLE; NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN pCi/L GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 60 120 240 HORIZONTAL SCALE: 1" = 240' VERTICAL SCALE: 1" = 48' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION K' K NOTE: CROSS SECTION K-K' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-33SGWA-20SGWA-20DAB-2SAB-2DAB-3SAB-3BRUAB-3BRAB-3IAB-3SLAB-4SAB-4BRAB-4SLAB-4DGWA-24SGWA-24DGWA-24BRASH PORE WATER ASH ASH ASH PORE WATER ASH PORE WATER ASH FILL SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE ACTIVE ASH BASIN K K' (WEST)(EAST) FILL FILL FILL GWA-20BR488 656 96 283 31 2960 1040 132 998 1760 8.7 79.2 14.2 22.7 29.4AB-3BRUAAB-3SLASUCK CREEK NM NMAB-2BRO(UNKNOWN CONSTRUCTION)NM NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTKK-STRO 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-100 STRONTIUM ANALYTICAL RESULTS - CROSS SECTION K-K' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR STRONTIUM HAS NOT BEEN ESTABLISHED. 4.PBTV FOR STRONTIUM IS 36.73 μg/L WITHIN THE SHALLOW FLOW LAYER, 56.14 μg/L WITHIN THE DEEP FLOW LAYER, AND 107.1 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L STRONTIUM ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 60 120 240 HORIZONTAL SCALE: 1" = 240' VERTICAL SCALE: 1" = 48' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION K' K NOTE: CROSS SECTION K-K' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-33SGWA-20SGWA-20DAB-2SAB-2DAB-3SAB-3BRUAB-3BRAB-3IAB-3SLAB-4SAB-4BRAB-4SLAB-4DGWA-24SGWA-24DGWA-24BRASH PORE WATER ASH ASH ASH PORE WATER ASH PORE WATER ASH FILL SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE ACTIVE ASH BASIN K K' (WEST)(EAST) FILL FILL FILL GWA-20BR153 66.7 83.9 41 17.2 344 M6 72 3.6 86.7 12.8 <1 4.3 3 2.8 6.9AB-3BRUAAB-3SLASUCK CREEK NM NMAB-2BRO(UNKNOWN CONSTRUCTION)NM NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTKK-SULF 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-101 SULFATE ANALYTICAL RESULTS - CROSS SECTION K-K' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR SULFATE IS 250 mg/L. 4.PBTV FOR SULFATE IS 1.169 mg/L WITHIN THE SHALLOW FLOW LAYER, 10 mg/L WITHIN THE DEEP FLOW LAYER, AND 15.1 mg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6. NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 60 120 240 HORIZONTAL SCALE: 1" = 240' VERTICAL SCALE: 1" = 48' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION K' K NOTE: CROSS SECTION K-K' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-33SGWA-20SGWA-20DAB-2SAB-2DAB-3SAB-3BRUAB-3BRAB-3IAB-3SLAB-4SAB-4BRAB-4SLAB-4DGWA-24SGWA-24DGWA-24BRASH PORE WATER ASH ASH ASH PORE WATER ASH PORE WATER ASH FILL SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE ACTIVE ASH BASIN K K' (WEST)(EAST) FILL FILL FILL GWA-20BR331 271 319 221 114 767 232 64 294 156 <25 80 27 26 41AB-3BRUAAB-3SLASUCK CREEK NM NMAB-2BRO(UNKNOWN CONSTRUCTION)NM NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTKK-TDS 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-102 TOTAL DISSOLVED SOLIDS ANALYTICAL RESULTS - CROSS SECTION K-K' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR TOTAL DISSOLVED SOLIDS (TDS) IS 500 mg/L. 4.PBTV FOR TOTAL DISSOLVED SOLIDS (TDS) IS 75.47 mg/L WITHIN THE SHALLOW FLOW LAYER, 70.98 mg/L WITHIN THE DEEP FLOW LAYER, AND 120 mg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 60 120 240 HORIZONTAL SCALE: 1" = 240' VERTICAL SCALE: 1" = 48' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION K' K NOTE: CROSS SECTION K-K' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-33SGWA-20SGWA-20DAB-2SAB-2DAB-3SAB-3BRUAB-3BRAB-3IAB-3SLAB-4SAB-4BRAB-4SLAB-4DGWA-24SGWA-24DGWA-24BRASH PORE WATER ASH ASH ASH PORE WATER ASH PORE WATER ASH FILL SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE ACTIVE ASH BASIN K K' (WEST)(EAST) FILL FILL FILL GWA-20BR0.57 <0.1 0.076 j, B <0.1 0.39 0.4 0.11 0.41 0.084 j 0.092 j 0.065 j <0.1 0.07 j 0.028 j <0.1 0.2 AB-3BRUAAB-3SLASUCK CREEK 0.2 0.20.2 NM NMAB-2BRO(UNKNOWN CONSTRUCTION)NM NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTKK-THAL 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-103 THALLIUM ANALYTICAL RESULTS - CROSS SECTION K-K' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FOR THALLIUM IS 0.2 μg/L. 4.PBTV FOR THALLIUM IS 0.117 μg/L WITHIN THE SHALLOW FLOW LAYER, 0.063 μg/L WITHIN THE DEEP FLOW LAYER, AND 0.2 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 60 120 240 HORIZONTAL SCALE: 1" = 240' VERTICAL SCALE: 1" = 48' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION K' K NOTE: CROSS SECTION K-K' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. THALLIUM ISOPLETH IN µg/L (IMAC = 0.2 µg/L) GWA-33SGWA-20SGWA-20DAB-2SAB-2DAB-3SAB-3BRUAB-3BRAB-3IAB-3SLAB-4SAB-4BRAB-4SLAB-4DGWA-24SGWA-24DGWA-24BRASH PORE WATER ASH ASH ASH PORE WATER ASH PORE WATER ASH FILL SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE ACTIVE ASH BASIN K K' (WEST)(EAST) FILL FILL FILL GWA-20BR<0.0005 0.00014 j 0.00032 j NA NA 0.0102 NA NA 0.0024 0.0279 NA <0.0005 NA NA NAAB-3BRUAAB-3SLASUCK CREEK NM NMAB-2BRO(UNKNOWN CONSTRUCTION)NM NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTKK-URAN_TOT 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-104 TOTAL URANIUM ANALYTICAL RESULTS - CROSS SECTION K-K' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR TOTAL URANIUM HAS NOT BEEN ESTABLISHED. THE FEDERAL MCL FOR URANIUM IS 0.03 pCi/L. 4.PBTV FOR TOTAL URANIUM IS 0.0005 μg/L WITHIN THE SHALLOW, DEEP, AND BEDROCK FLOW LAYERS. 5.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. 6.NA = NOT AVAILABLE; NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/mL GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 60 120 240 HORIZONTAL SCALE: 1" = 240' VERTICAL SCALE: 1" = 48' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION K' K NOTE: CROSS SECTION K-K' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. GWA-33SGWA-20SGWA-20DAB-2SAB-2DAB-3SAB-3BRUAB-3BRAB-3IAB-3SLAB-4SAB-4BRAB-4SLAB-4DGWA-24SGWA-24DGWA-24BRASH PORE WATER ASH ASH ASH PORE WATER ASH PORE WATER ASH FILL SAPROLITE SAPROLITE SAPROLITE BEDROCK BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE TRANSITION ZONE SAPROLITE ACTIVE ASH BASIN K K' (WEST)(EAST) FILL FILL FILL GWA-20BR<0.3 0.14 j <0.3 <0.3 0.094 j 5.2 57.6 2.2 25.3 17 0.13 j <0.3 <0.3 <0.3 <0.3AB-3BRUAAB-3SLASUCK CREEK AB-2BRO(UNKNOWN CONSTRUCTION)NM NM NM NM D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTKK-VANA 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-105 VANADIUM ANALYTICAL RESULTS - CROSS SECTION K-K' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FOR VANADIUM IS 0.3 μg/L. 4.PBTV FOR VANADIUM IS 0.8 μg/L WITHIN THE SHALLOW FLOW LAYER, 1.095 µg/L DEEP FLOW LAYER, AND 0.37 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L VANADIUM ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 60 120 240 HORIZONTAL SCALE: 1" = 240' VERTICAL SCALE: 1" = 48' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION K' K NOTE: CROSS SECTION K-K' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. U5-8SU5-8BRU5-7DU5-7SLU5-7SU5-5DGWA-3DGWA-37DGWA-37SL L' (SOUTH)(NORTH) SAPROLITE SAPROLITE SAPROLITE ASH PORE WATER ASH ASH FILL FILL FILL FILL BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE UNIT 5 INACTIVE ASH BASIN U5-8D0.37 1.2 0.79 0.8 1440 160 9 0.13 U5-5BR7.7 CCR-U5-5D1.4 NM NM BROAD RIVER D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTLL-ARS 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-106 ARSENIC ANALYTICAL RESULTS - CROSS SECTION L-L' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR ARSENIC IS 10 μg/L. 4.PBTV FOR ARSENIC IS 1 μg/L WITHIN THE SHALLOW FLOW LAYER, 1.303 μg/L WITHIN THE DEEP FLOW LAYER, AND 1 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION L-L' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION.LL' U5-8SU5-8BRU5-7DU5-7SLU5-7SU5-5DGWA-3DGWA-37DGWA-37SL L' (SOUTH)(NORTH) SAPROLITE SAPROLITE SAPROLITE ASH PORE WATER ASH ASH FILL FILL FILL FILL BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE UNIT 5 INACTIVE ASH BASIN U5-8D73 416 454 179 180 48.9 j 44.4 j U5-5BR29.5 j 140 CCR-U5-5DNM NM 441 BROAD RIVER D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTLL-BOR 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-107 BORON ANALYTICAL RESULTS - CROSS SECTION L-L' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR BORON IS 700 μg/L. 4.PBTV FOR BORON IS 50 μg/L WITHIN THE SHALLOW, DEEP, AND BEDROCK FLOW LAYERS. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L BORON ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION L-L' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION.LL' U5-8SU5-8BRU5-7DU5-7SLU5-7SU5-5DGWA-3DGWA-37DGWA-37SL L' (SOUTH)(NORTH) SAPROLITE SAPROLITE SAPROLITE ASH PORE WATER ASH ASH FILL FILL FILL FILL BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE UNIT 5 INACTIVE ASH BASIN U5-8D0.14 1.9 0.24 <0.12 D3 <1.5 <1.5 <0.12 D3 0.74 U5-5BRNA CCR-U5-5DNM NM NM BROAD RIVER D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTLL-CHR_HEX 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-108 HEXAVALENT CHROMIUM ANALYTICAL RESULTS - CROSS SECTION L-L' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR HEXAVALENT CHROMIUM IS NOT ESTABLISHED. THE NORTH CAROLINA 2L FOR TOTAL CHROMIUM IS 10 μg/L AND IS USED FOR COMPARATIVE PURPOSES. 4.PBTV FOR HEXAVALENT CHROMIUM IS 0.452 μg/L WITHIN THE SHALLOW, 0.16 μg/L WITHIN THE DEEP FLOW LAYER, AND 0.12 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NA = NOT AVAILABLE; NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L HEXAVALENT CHROMIUM ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION L-L' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION.LL' U5-8SU5-8BRU5-7DU5-7SLU5-7SU5-5DGWA-3DGWA-37DGWA-37SL L' (SOUTH)(NORTH) SAPROLITE SAPROLITE SAPROLITE ASH PORE WATER ASH ASH FILL FILL FILL FILL BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE UNIT 5 INACTIVE ASH BASIN U5-8D4.4 0.78 2.2 5.4 0.58 j+ 12.3 j+ 0.17 j 1.4 U5-5BR2.8 j+CCR-U5-5DNM NM 0.3 j BROAD RIVER D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTLL-CHR_TOT 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-109 TOTAL CHROMIUM ANALYTICAL RESULTS - CROSS SECTION L-L' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR TOTAL CHROMIUM IS 10 μg/L. 4.PBTV FOR TOTAL CHROMIUM IS 3.968 μg/L WITHIN THE SHALLOW FLOW LAYER, 1.791 µg/L WITHIN THE DEEP FLOW LAYER, AND 3.567 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION L-L' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION.LL' U5-8SU5-8BRU5-7DU5-7SLU5-7SU5-5DGWA-3DGWA-37DGWA-37SL L' (SOUTH)(NORTH) SAPROLITE SAPROLITE SAPROLITE ASH PORE WATER ASH ASH FILL FILL FILL FILL BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE UNIT 5 INACTIVE ASH BASIN U5-8D1.4 103 4 94.1 0.11 133 0.91 0.18 U5-5BR11.6 CCR-U5-5DNM 20.1 NM BROAD RIVER D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTLL-COB 1/25/2018 01/29/2018 2:21 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-110 COBALT ANALYTICAL RESULTS - CROSS SECTION L-L' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FOR COBALT IS 1 μg/L. 4.PBTV FOR COBALT IS 10.65 μg/L WITHIN THE SHALLOW FLOW LAYER, 5.1 μg/L WITHIN THE DEEP FLOW LAYER, AND 1.497 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L COBALT ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION L-L' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION.LL' U5-8SU5-8BRU5-7DU5-7SLU5-7SU5-5DGWA-3DGWA-37DGWA-37SL L' (SOUTH)(NORTH) SAPROLITE SAPROLITE SAPROLITE ASH PORE WATER ASH ASH FILL FILL FILL FILL BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE UNIT 5 INACTIVE ASH BASIN U5-8D458 15900 106 4130 27300 81300 12000 179 U5-5BR620 j-CCR-U5-5DNM NM NM BROAD RIVER D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTLL-IRON 1/25/2018 01/29/2018 2:22 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-111 IRON ANALYTICAL RESULTS - CROSS SECTION L-L' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR IRON IS 300 μg/L. 4.PBTV FOR IRON IS 684 μg/L WITHIN THE SHALLOW FLOW LAYER, 515 μg/L WITHIN THE DEEP FLOW LAYER, AND 6220 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L IRON ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION L-L' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION.LL' U5-8SU5-8BRU5-7DU5-7SLU5-7SU5-5DGWA-3DGWA-37DGWA-37SL L' (SOUTH)(NORTH) SAPROLITE SAPROLITE SAPROLITE ASH PORE WATER ASH ASH FILL FILL FILL FILL BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE UNIT 5 INACTIVE ASH BASIN U5-8D65.3 8700 1470 4930 845 2860 3660 26.5 U5-5BR1100 j-CCR-U5-5DNM NM NM BROAD RIVER D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTLL-MANG 1/25/2018 01/29/2018 2:22 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-112 MANGANESE ANALYTICAL RESULTS - CROSS SECTION L-L' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR MANGANESE IS 50 μg/L. 4.PBTV FOR MANGANESE IS 168.8 μg/L WITHIN THE SHALLOW FLOW LAYER, 78.31 μg/L WITHIN THE DEEP FLOW LAYER, AND 89.4 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L MANGANESE ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION L-L' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION.LL' U5-8SU5-8BRU5-7DU5-7SLU5-7SU5-5DGWA-3DGWA-37DGWA-37SL L' (SOUTH)(NORTH) SAPROLITE SAPROLITE SAPROLITE ASH PORE WATER ASH ASH FILL FILL FILL FILL BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE UNIT 5 INACTIVE ASH BASIN U5-8D5.8 5.7 5.6 5.6 6.3 7.5 6.4 6.0 U5-5BR7.4 CCR-U5-5DNM NM 7.2 BROAD RIVER D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTLL-PH 1/25/2018 01/29/2018 2:22 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-113 pH ANALYTICAL RESULTS - CROSS SECTION L-L' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR pH IS A RANGE OF 6.5 - 8.5 S.U. 4.PBTV FOR ph IS A RANGE OF 4.4 - 6.1 S.U. WITHIN THE SHALLOW FLOW LAYER, 4.8 - 6.1 S.U. WITHIN THE DEEP FLOW LAYER AND 5.4 - 7.4 S.U. WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED.2.14 CONCENTRATION IN STANDARD UNITS (S.U.) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION L-L' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION.LL' U5-8SU5-8BRU5-7DU5-7SLU5-7SU5-5DGWA-3DGWA-37DGWA-37SL L' (SOUTH)(NORTH) SAPROLITE SAPROLITE SAPROLITE ASH PORE WATER ASH ASH FILL FILL FILL FILL BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE UNIT 5 INACTIVE ASH BASIN U5-8DNA NA 1.212 4.518 NA NA NA NA U5-5BRNA CCR-U5-5DNM 0.343 NM BROAD RIVER D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTLL-RAD_TOT 1/25/2018 01/29/2018 2:22 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-114 TOTAL RADIUM ANALYTICAL RESULTS - CROSS SECTION L-L' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR TOTAL RADIUM HAS NOT BEEN ESTABLISHED. THE FEDERAL MCL FOR RADIUM IS 5 pCi/L. 4.PBTV FOR TOTAL RADIUM IS 2.58 pCi/L WITHIN THE SHALLOW FLOW LAYER, 1.51 pCi/L WITHIN THE DEEP FLOW LAYER, AND 3.1 pCi/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NA = NOT AVAILABLE; NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN pCi/L GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATIONLL'NOTE: CROSS SECTION L-L' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. U5-8SU5-8BRU5-7DU5-7SLU5-7SU5-5DGWA-3DGWA-37DGWA-37SL L' (SOUTH)(NORTH) SAPROLITE SAPROLITE SAPROLITE ASH PORE WATER ASH ASH FILL FILL FILL FILL BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE UNIT 5 INACTIVE ASH BASIN U5-8DU5-5BR569 74.1 248 266 1000 1120 203 41.3 520 j-CCR-U5-5DNM NM NM BROAD RIVER D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTLL-STRO 1/25/2018 01/29/2018 2:22 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-115 STRONTIUM ANALYTICAL RESULTS - CROSS SECTION L-L' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR STRONTIUM HAS NOT BEEN ESTABLISHED. 4.PBTV FOR STRONTIUM IS 36.73 μg/L WITHIN THE SHALLOW FLOW LAYER, 56.14 μg/L WITHIN THE DEEP FLOW LAYER, AND 107.1 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L STRONTIUM ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION L-L' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION.LL' U5-8SU5-8BRU5-7DU5-7SLU5-7SU5-5DGWA-3DGWA-37DGWA-37SL L' (SOUTH)(NORTH) SAPROLITE SAPROLITE SAPROLITE ASH PORE WATER ASH ASH FILL FILL FILL FILL BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE UNIT 5 INACTIVE ASH BASIN U5-8D322 75.4 189 246 34.7 258 17.9 2.4 U5-5BR231 250CCR-U5-5DNM 154 NM BROAD RIVER D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTLL-SULF 1/25/2018 01/29/2018 2:22 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-116 SULFATE ANALYTICAL RESULTS - CROSS SECTION L-L' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR SULFATE IS 250 mg/L. 4.PBTV FOR SULFATE IS 1.169 mg/L WITHIN THE SHALLOW FLOW LAYER, 10 mg/L WITHIN THE DEEP FLOW LAYER, AND 15.1 mg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L SULFATE ISOPLETH IN mg/L (2L STANDARD = 250 mg/L) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION L-L' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION.LL' U5-8SU5-8BRU5-7DU5-7SLU5-7SU5-5DGWA-3DGWA-37DGWA-37SL L' (SOUTH)(NORTH) SAPROLITE SAPROLITE SAPROLITE ASH PORE WATER ASH ASH FILL FILL FILL FILL BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE UNIT 5 INACTIVE ASH BASIN U5-8D526 185 346 435 193 <25 235 59 U5-5BR520500 500 500CCR-U5-5D371 NM NM BROAD RIVER D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTLL-TDS 1/25/2018 01/29/2018 2:22 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-117 TOTAL DISSOLVED SOLIDS ANALYTICAL RESULTS - CROSS SECTION L-L' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR TOTAL DISSOLVED SOLIDS (TDS) IS 500 mg/L. 4.PBTV FOR TOTAL DISSOLVED SOLIDS (TDS) IS 75.47 mg/L WITHIN THE SHALLOW FLOW LAYER, 70.98 mg/L WITHIN THE DEEP FLOW LAYER, AND 120 mg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L TOTAL DISSOLVED SOLIDS (TDS) ISOPLETH IN mg/L (2L STANDARD = 500 mg/L) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION L-L' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION.LL' U5-8SU5-8BRU5-7DU5-7SLU5-7SU5-5DGWA-3DGWA-37DGWA-37SL L' (SOUTH)(NORTH) SAPROLITE SAPROLITE SAPROLITE ASH PORE WATER ASH ASH FILL FILL FILL FILL BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE UNIT 5 INACTIVE ASH BASIN U5-8D<0.1 0.1 0.075 j 0.054 j <0.1 <1 <0.1 <0.1 U5-5BR0.066 j 0.2CCR-U5-5DNM NM 0.034 j,B BROAD RIVER D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTLL-THAL 1/25/2018 01/29/2018 2:22 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-118 THALLIUM ANALYTICAL RESULTS - CROSS SECTION L-L' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FOR THALLIUM IS 0.2 μg/L. 4.PBTV FOR THALLIUM IS 0.117 μg/L WITHIN THE SHALLOW FLOW LAYER, 0.063 μg/L WITHIN THE DEEP FLOW LAYER, AND 0.2 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.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. 6.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION L-L' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION. THALLIUM ISOPLETH IN µg/L (IMAC = 0.2 µg/L)LL' U5-8SU5-8BRU5-7DU5-7SLU5-7SU5-5DGWA-3DGWA-37DGWA-37SL L' (SOUTH)(NORTH) SAPROLITE SAPROLITE SAPROLITE ASH PORE WATER ASH ASH FILL FILL FILL FILL BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE UNIT 5 INACTIVE ASH BASIN U5-8DNA NA 1.212 4.518 NA NA NA NA U5-5BRNA CCR-U5-5DNM NM NM BROAD RIVER D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTLL-URAN_TOT 1/25/2018 01/29/2018 2:22 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-119 TOTAL URANIUM ANALYTICAL RESULTS - CROSS SECTION L-L' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE NORTH CAROLINA 2L FOR TOTAL URANIUM HAS NOT BEEN ESTABLISHED. THE FEDERAL MCL FOR URANIUM IS 0.03 pCi/L. 4.PBTV FOR TOTAL URANIUM IS 0.0005 μg/L WITHIN THE SHALLOW, DEEP, AND BEDROCK FLOW LAYERS. 5.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. 6.NA = NOT AVAILABLE; NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/mL GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION L-L' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION.LL' U5-8SU5-8BRU5-7DU5-7SLU5-7SU5-5DGWA-3DGWA-37DGWA-37SL L' (SOUTH)(NORTH) SAPROLITE SAPROLITE SAPROLITE ASH PORE WATER ASH ASH FILL FILL FILL FILL BEDROCK BEDROCK TRANSITION ZONE TRANSITION ZONE UNIT 5 INACTIVE ASH BASIN U5-8D1 0.92 0.74 0.71 0.68 1.8 j <0.3 0.72 U5-5BR1.9 CCR-U5-5DNM NM NM BROAD RIVER D U K E P O W E R R O A D CCP LANDFILL ACTIVE ASH BASIN UNITS 1-4 INACTIVE ASH BASIN ASH STORAGE AREA UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION BROAD RIVE R HIGHWAY221 ALTSUCK CREEKMC C R A W R O A D 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 XSECTLL-VANA 1/25/2018 01/29/2018 2:22 PM P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\DWG\Cliff_XSects_Analytical_AHKL.dwg FIGURE 11-120 VANADIUM ANALYTICAL RESULTS - CROSS SECTION L-L' CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA CAROLINAS 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 AUGUST 2017. 2.CONCENTRATIONS REPORTED ON FIGURE REPRESENT THE MOST RECENT VALID GROUNDWATER SAMPLE COLLECTED FROM MARCH 2015 TO AUGUST 2017. 3.THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FOR VANADIUM IS 0.3 μg/L. 4.PBTV FOR VANADIUM IS 0.8 μg/L WITHIN THE SHALLOW FLOW LAYER, 1.095 µg/L DEEP FLOW LAYER, AND 0.37 μg/L WITHIN THE BEDROCK FLOW LAYER. 5.NM = NOT MEASURED. ASH PORE WATER BEDROCK TRANSITION ZONE ALLUVIUM FILL SAPROLITE ASH 2.14 CONCENTRATION IN µg/L VANADIUM ISOPLETH IN µg/L (GREATER THAN FLOW LAYER PBTV) GENERALIZED WATER TABLE MW-16BR MW-16D MW-12S ABMW-2 WELL IN DEEP FLOW LAYER WELL IN SHALLOW FLOW LAYER WELL IN BEDROCK FLOW LAYER WELL IN ASH PORE WATER LEGEND GENERALIZED GROUNDWATER FLOW DIRECTION MW-102S ABANDONED WELL/ GEOTECHNICAL BORING 0 50 100 200 HORIZONTAL SCALE: 1" = 200' VERTICAL SCALE: 1" = 40' 5X VERTICAL EXAGGERATION CROSS SECTION LOCATION NOTE: CROSS SECTION L-L' IS LINEAR IN NATURE AND ALL LOCATIONS NOT ALONG THE CROSS SECTION ARE PROJECTED ONTO THE CROSS SECTION.LL' &<&< &<&< &<&<&<&< &<&<&<&< &<&<&< &<&<&< &< &<&<&< &< &<&< &<&<&< &<&<&<&< &<&< &< &<&< &<&< &<&< &< &<&<&< &< &<&<&< &<&<&< &< &< &<&<&< &<&< &<&< &<&< &<&<&< &< &<&<&< &<&<&< &<&< &<&< &<&<&< &< &<&<&<&< &<&< &<&< &< &< &<&< &<&< &<&<&< &<&< &< &< &<&< &<&< &<&< &< &< &< &< &< &<&< &<&<&<&< &<&<&< &<&< &<&< &<&<&< ") ") ") ") ") ") ") ") ") ") ") &<&< &<&< &< &< &< &<&< &< &< &< &<&<&<&< &< &< &<&< &< &<&< &<&< &< &< &< &<&<&<&<&< &<&< &< &< &<&< &<&< &<&< &<&< &< &<&<&<&<&<&< &<&< &<&< &< &<&< &<&< &< &< &<&< &<&< &< &<&< &<&<&< &< &<&<&<&< &<&< &< &< &< &<&< &< &< &<&< &<&< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &<&<&<&< &< &< &<&< &<&< &< &< &< &< &< &< &<&< &<&< &< &<&< &<&<&< &< &< &< &<&< ") ")") ") ") ") ")") ") ") ") ") ") ") ")") ")")") &<&<&< &< &< &< &<&<") &< &<&< &< ACTIVEASH BASIN UNIT 5INACTIVEASH BASIN B R O A D R I V E R SUCK CREEK CCPLANDFILL ASHSTORAGE UNITS 1-4INACTIVEASH BASIN EXPOSUREAREA 1 EXPOSUREAREA 2 EXPOSUREAREA 3 EXPOSUREAREA 4 AS-5S/BRU/BR GWA-20S/D/BR GWA-42S GWA-43S/D MW-10S/D AB-1S/D/BRO AB-2S/D/BRO AB-3S/SL/I AB-4S/SL/D/BR AB-5S/BRU/BR AB-6S/D/BR AS-1SB/D AS-2S/D/BR AS-3BRU AS-4S/D AS-6S/D/BR*/BRA AS-7S/D/BR*/BRA BG-1S/D/BR*/BRA BG-2D GWA-10S/D GWA-11S/BRU GWA-12S/BRU GWA-13BR GWA-14S/D/BR GWA-1BRU GWA-21S/BRU/BR GWA-22S/BRU GWA-23D GWA-24S/D/BR GWA-25S/D GWA-26S/D GWA-27DA/D*/BR GWA-28S/BRU/BR GWA-29D/BRA/BR* GWA-2S/BRU/BR GWA-30S/BRU/BR GWA-31D/BR-A/BR* GWA-32D/BR GWA-33S/D/BR GWA-34S GWA-35S/D GWA-36S/D GWA-37S/D GWA-38S/D GWA-39S GWA-3D GWA-40S GWA-44S/D/BR GWA-45S/D GWA-46D GWA-47D GWA-4S/D GWA-5S/BRUGWA-6S/D MW-23S/D/DR MW-34S/BRU U5-1S/D U5-2S-SL/SLA/D/BR U5-4S/D/BR/BRA U5-5D/BR U5-6S/D U5-8S/D/BR CLFSP-60 CLFSTR-53 CLFSTR-55 SW-1 SW-2 SW-3 SW-4 SW-5 SW-7 SW-8 SW-9 CCR-11S/D CCR-12S/D CCR-13D CCR-14D CCR-15D CCR-16S/D CCR-3BR CCR-4D CCR-5D CCR-6S/D CCR-7S/D CCR-8D CCR-9D CCR-CCP-10S/D CCR-CCP-11BR CCR-CCP-12S/D CCR-CCP-13DCCR-CCP-14D CCR-CCP-15S/D CCR-CCP-1D CCR-CCP-2D CCR-CCP-3S/D CCR-CCP-4D CCR-CCP-5S/D CCR-CCP-6S/D CCR-CCP-7D CCR-CCP-8D CCR-CCP-9S/D CCR-IB-1S/D CCR-IB-3S/D CCR-U5-10S/D CCR-U5-1D CCR-U5-2D CCR-U5-3S/D CCR-U5-4S/D CCR-U5-5D CCR-U5-6S/D CCR-U5-8S/D CCR-U5-9S CCPMW-1S/D MW-20D/DR MW-21D/BR MW-22DR/BR MW-24D/DR MW-25DR MW-30S/D/DA MW-32S/D/BR MW-36S/BRU MW-38S/D/BR MW-40S/BRU MW-42S/DA/D* CLMW-1 CLMW-2 CLMW-3S/D CLMW-5S/D CLMW-6 MW-11S/D/DA/BR MW-4D MW-8S/D AB-3BRUA/BRU*/BR GWA-48BR CCPMW-2S/D CCPMW-3S/D CCPMW-4 CCPMW-5 CCPMW-6S/D CCPTW-1S/D CCPTW-2 CLP-1 CLP-2 CLP-3 CLP-4 AD2-2 AD2-3 AD2-1AD1-1 AD2-4 AD3-2 AD3-1 SY-1 SY-2 SY-3 SY-4 SY-5SYBG-1 SW-10C SW-10B SW-10A SW-BRAB-3 SW-BRAB-2 SW-BRAB-1 SW-BRU14-1 SW-BRU14-2 SW-BRU14-3 SW-SC-7 AS-8S/D SW-SC-1 SW-SC-2 SW-SC-3 SW-SC-4 SW-SC-5 SW-WCU5-1 SW-BRU5-1 GWA-56S/D GWA-51D SW-SC-6SW-BRBG MW-7D FIGURE 12-1HUMAN HEALTH ANDECOLOGICAL EXPOSURE AREASCLIFFSIDE STEAM STATIONDUKE ENERGY CAROLINAS, LLCMOORESBORO, NORTH CAROLINADRAWN BY: B. YOUNGPROJECT MANAGER: S. SPINNERCHECKED BY: M .YOUNGBLOOD DATE: 01/26/2018 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Cliffside\Mapdocs\CSA_Supplement_2\Fig12-1 Cliffside - Human Health and Ecological Exposure Areas.mxd 425 0 425 850212.5 GRAPHIC SCALE IN FEET NOTES:GENERALIZED AREAL EXTENT OF MIGRATION REPRESENTED BY NCAC 02LEXCEEDANCES OF MULTIPLE CONSTITUENTS IN MULTIPLE FLOW ZONES. 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 W ET AREAS. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY CAROLINAS. AERIAL PHOTOGRAPHY OBTAINED FROM GOOGLE EARTH PRO ON SEPTEMBER 26,2017. AERIAL WAS COLLECTED ON APRIL 1, 2017. DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND &< MONITORING WELL (* INDICATES W ELL LOCATIONHAS BEEN ABANDONED) &<BACKGROUND MONITORING W ELL ")WATER SAMPLE LOCATION EXPOSURE AREA 1 EXPOSURE AREA 2 EXPOSURE AREA 3 EXPOSURE AREA 4 AREA OF CONCENTRATION IN GROUNDW ATERABOVE NC2L (SEE NOTES) ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY LANDFILL / ASH STORAGE AREA BOUNDARY DUKE ENERGY CAROLINAS CLIFFSIDE PLANTSITE BOUNDARY <STREAM (AMEC NRTR 2015) WETLAND (AMEC NRTR 2015) 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-1 TIME VERSUS CONCENTRATION ARSENIC IN BACKGROUND CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:10µg/L, PBTV:1µg/L) Bedrock (2L Std:10µg/L, PBTV: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. •NA – Not Available •NE – Not Established Bedrock Deep Ash Pore Water Shallow DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:10µg/L, PBTV:1.303µg/L) Background 15 NCAC 2L Standard Background Provisional Background Threshold Value 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)BG-1S 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)BG-1D 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)MW-24DR 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)MW-32S 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)MW-32D 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)MW-32BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-2 TIME VERSUS CONCENTRATION ARSENIC FOR THE ACTIVE ASH BASIN (SHEET 1 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (Upper) (2L Std:10µg/L, PBTV:1µg/L) Shallow (Lower) (2L Std:10µg/L, PBTV:1µg/L) Bedrock (2L Std:10µg/L, PBTV:1µg/L) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:10µg/L, PBTV:1.303µg/L) Source Source NA NA NA Source NA NA Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)AB-6D 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)AB-6BR 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)AB-1S 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)AB-4S 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)AB-4SL 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)AB-4D 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)AB-4BR 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. •NA – Not Available •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-3 TIME VERSUS CONCENTRATION ARSENIC FOR THE ACTIVE ASH BASIN (SHEET 2 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:10µg/L, PBTV:1µg/L) Bedrock (2L Std:10µg/L, PBTV:1µg/L) Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:10µg/L, PBTV:1.303µg/L) Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)GWA-21S 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)GWA-21BRU 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)GWA-21BR 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. •NA – Not Available •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-4 TIME VERSUS CONCENTRATION ARSENIC FOR THE UNITS 1-4 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:10µg/L, PBTV:1µg/L) Bedrock (2L Std:10µg/L, PBTV:1µg/L) Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:10µg/L, PBTV:1.303µg/L) Upgradient NA Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)GWA-14S 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)GWA-14D 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)GWA-13BR 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)GWA-11S 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)GWA-11BRU 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. •NA – Not Available •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-5 TIME VERSUS CONCENTRATION ARSENIC FOR THE UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:10µg/L, PBTV:1µg/L) Bedrock (2L Std:10µg/L, PBTV:1µg/L) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:10µg/L, PBTV:1.303µg/L) Source NA NA Source Downgradient Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)U5-2D 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)U5-2BR 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)U5-4S 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)U5-4D 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)GWA-2S 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)GWA-2BRU 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Arsenic Concentration (µg/L)MW-38BR 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. •NA – Not Available •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-6 TIME VERSUS CONCENTRATION BORON IN BACKGROUND CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (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. •NA – Not Available •NE – Not Established DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:700µg/L, PBTV:50µg/L) Background Background Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)BG-1S 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)BG-1D 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)MW-24DR 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)MW-32S 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)MW-32D 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)MW-32BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-7 TIME VERSUS CONCENTRATION BORON FOR THE ACTIVE ASH BASIN (SHEET 1 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (Upper) (2L Std:700µg/L, PBTV:50µg/L) Shallow (Lower) (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. •NA – Not Available •NE – Not Established DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:700µg/L, PBTV:50µg/L) Source Source NA NA NA Source NA NA Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)AB-6D 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)AB-6BR 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)AB-1S 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)AB-4S 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)AB-4SL 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)AB-4D 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)AB-4BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-8 TIME VERSUS CONCENTRATION BORON FOR THE ACTIVE ASH BASIN (SHEET 2 0F 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (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. •NA – Not Available •NE – Not Established Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:700µg/L, PBTV:50µg/L) Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)GWA-21S 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)GWA-21BRU 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)GWA-21BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-9 TIME VERSUS CONCENTRATION BORON FOR THE UNITS 1-4 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:700µg/L, PBTV:50µg/L) Bedrock (2L Std:700µg/L, PBTV:50µg/L) Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:700µg/L, PBTV:50µg/L) Upgradient NA Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)GWA-14S 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)GWA-14D 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)GWA-13BR 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)GWA-11S 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)GWA-11BRU 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. •NA – Not Available •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-10 TIME VERSUS CONCENTRATION BORON FOR THE UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:700µg/L, PBTV:50µg/L) Bedrock (2L Std:700µg/L, PBTV:50µg/L) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:700µg/L, PBTV:50µg/L) Source NA NA Source Downgradient Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)U5-2D 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)U5-2BR 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)U5-4S 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)U5-4D 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)GWA-2S 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)GWA-2BRU 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Boron Concentration (µg/L)MW-38BR 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. •NA – Not Available •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-11 TIME VERSUS CONCENTRATION TOTAL AND HEXAVALENT CHROMIUM IN BACKGROUND CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (Chromium 2L Std:10 µg/L, PBTV:3.968 µg/L) (Chromium (VI) 2L Std: NE, PBVT: 0.452 µg/L) Bedrock (2L Std:10 µg/L, PBTV:3.567 µg/L) (Chromium (VI) 2L Std: NE, PBVT: 0.12 µg/L) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:10 µg/L, PBTV:1.791 µg/L) (Chromium (VI) 2L Std: NE, PBVT: 0.16 µg/L) Background Background Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard (Cr) Provisional Background Threshold Value (Cr) 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)BG-1S 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)BG-1D 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)MW-24DR 0.10 1.00 10.00 100.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)MW-32S 0.00 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)MW-32D 0.01 0.10 1.00 10.00 100.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)MW-32BR 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. •NA – Not Available •NE – Not Established Hexavalent Chromium (Same Flow Layer as Total Chromium Results) Provisional Background Threshold Value (Cr VI) 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-12 TIME VERSUS CONCENTRATION TOTAL AND HEXAVALENT CHROMIUM FOR THE ACTIVE ASH BASIN (SHEET 1 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (Upper) (Chromium 2L Std:10 µg/L, PBTV:3.968 µg/L) (Chromium (VI) 2L Std: NE, PBVT: 0.452 µg/L) Shallow (Lower) (Chromium 2L Std:10 µg/L, PBTV:3.968 µg/L) (Chromium (VI) 2L Std: NE, PBVT: 0.452 µg/L) Bedrock (2L Std:10 µg/L, PBTV:3.567 µg/L) (Chromium (VI) 2L Std: NE, PBVT: 0.12 µg/L) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:10 µg/L, PBTV:1.791 µg/L) (Chromium (VI) 2L Std: NE, PBVT: 0.16 µg/L) Source Source NA NA NA Source NA NA 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)AB-6D 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)AB-6BR 0.01 0.10 1.00 10.00 100.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)AB-1S 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)AB-4S 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)AB-4SL 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)AB-4D 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)AB-4BR 15 NCAC 2L Standard (Cr) Provisional Background Threshold Value (Cr) Provisional Background Threshold Value (Cr VI) 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. •NA – Not Available •NE – Not Established Bedrock Deep Ash Pore Water Shallow Hexavalent Chromium (Same Flow Layer as Total Chromium Results) 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-13 TIME VERSUS CONCENTRATION TOTAL AND HEXAVALENT CHROMIUM FOR THE ACTIVE ASH BASIN (SHEET 2 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (Chromium 2L Std:10 µg/L, PBTV:3.968 µg/L) (Chromium (VI) 2L Std: NE, PBVT: 0.452 µg/L) Bedrock (2L Std:10 µg/L, PBTV:3.567 µg/L) (Chromium (VI) 2L Std: NE, PBVT: 0.12 µg/L) Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:10 µg/L, PBTV:1.791 µg/L) (Chromium (VI) 2L Std: NE, PBVT: 0.16 µg/L) 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)GWA-21S 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)GWA-21BRU 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)GWA-21BR 15 NCAC 2L Standard (Cr) Provisional Background Threshold Value (Cr) Provisional Background Threshold Value (Cr VI) 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. •NA – Not Available •NE – Not Established Bedrock Deep Ash Pore Water Shallow Hexavalent Chromium (Same Flow Layer as Total Chromium Results) 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-14 TIME VERSUS CONCENTRATION TOTAL AND HEXAVALENT CHROMIUM FOR THE UNITS 1-4 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (Chromium 2L Std:10 µg/L, PBTV:3.968 µg/L) (Chromium (VI) 2L Std: NE, PBVT: 0.452 µg/L) Bedrock (2L Std:10 µg/L, PBTV:3.567 µg/L) (Chromium (VI) 2L Std: NE, PBVT: 0.12 µg/L) Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:10 µg/L, PBTV:1.791 µg/L) (Chromium (VI) 2L Std: NE, PBVT: 0.16 µg/L) Upgradient NA 0.10 1.00 10.00 100.00 1000.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)GWA-14S 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)GWA-14D 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)GWA-13BR 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)GWA-11S 0.01 0.10 1.00 10.00 100.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)GWA-11BRU 15 NCAC 2L Standard (Cr) Provisional Background Threshold Value (Cr) Provisional Background Threshold Value (Cr VI) 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. •NA – Not Available •NE – Not Established Bedrock Deep Ash Pore Water Shallow Hexavalent Chromium (Same Flow Layer as Total Chromium Results) 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-15 TIME VERSUS CONCENTRATION TOTAL AND HEXAVALENT CHROMIUM FOR THE UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (Chromium 2L Std:10 µg/L, PBTV:3.968 µg/L) (Chromium (VI) 2L Std: NE, PBVT: 0.452 µg/L) Bedrock (2L Std:10 µg/L, PBTV:3.567 µg/L) (Chromium (VI) 2L Std: NE, PBVT: 0.12 µg/L) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:10 µg/L, PBTV:1.791 µg/L) (Chromium (VI) 2L Std: NE, PBVT: 0.16 µg/L) Source NA NA Source Downgradient 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)U5-2D 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)U5-2BR 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)U5-4S 0.10 1.00 10.00 100.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)U5-4D 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)GWA-2S 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)GWA-2BRU 0.01 0.10 1.00 10.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Chromium Concentration (µg/L)MW-38BR 15 NCAC 2L Standard (Cr) Provisional Background Threshold Value (Cr) Provisional Background Threshold Value (Cr VI) 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. •NA – Not Available •NE – Not Established Bedrock Deep Ash Pore Water Shallow Hexavalent Chromium (Same Flow Layer as Total Chromium Results) 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-16 TIME VERSUS CONCENTRATION COBALT IN BACKGROUND CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (IMAC:1 µg/L, PBTV:10.65 µg/L) Bedrock (IMAC:1 µg/L, PBTV:1.497 µg/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. •NA – Not Available •NE – Not Established DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (IMAC:1 µg/L, PBTV:5.1 µg/L) Background Background Bedrock Deep Ash Pore Water Shallow IMAC Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)BG-1S 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)BG-1D 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)MW-24DR 0.0 0.1 1.0 10.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)MW-32S 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)MW-32D 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)MW-32BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-17 TIME VERSUS CONCENTRATION COBALT FOR THE ACTIVE ASH BASIN (SHEET 1 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Source Source NA NA NA Source NA NA Bedrock Deep Ash Pore Water Shallow IMAC Provisional Background Threshold Value 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)AB-6D 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)AB-6BR 0.0 0.1 1.0 10.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)AB-1S 0.0 0.1 1.0 10.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)AB-4S 0.0 0.1 1.0 10.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)AB-4SL 0.0 0.1 1.0 10.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)AB-4D 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)AB-4BR 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. •NA – Not Available •NE – Not Established Shallow (IMAC:1 µg/L, PBTV:10.65 µg/L) Bedrock (IMAC:1 µg/L, PBTV:1.497 µg/L) Deep (IMAC:1 µg/L, PBTV:5.1 µg/L) Shallow (IMAC:1 µg/L, PBTV:10.65 µg/L) 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-18 TIME VERSUS CONCENTRATION COBALT FOR THE ACTIVE ASH BASIN (SHEET 2 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Bedrock Deep Ash Pore Water Shallow IMAC Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)GWA-21S 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)GWA-21BRU 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)GWA-21BR 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. •NA – Not Available •NE – Not Established Shallow (IMAC:1 µg/L, PBTV:10.65 µg/L) Bedrock (IMAC:1 µg/L, PBTV:1.497 µg/L) Deep (IMAC:1 µg/L, PBTV:5.1 µg/L) 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-19 TIME VERSUS CONCENTRATION COBALT FOR THE UNITS 1-4 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Upgradient NA Bedrock Deep Ash Pore Water Shallow IMAC Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)GWA-14S 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)GWA-14D 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)GWA-13BR 0.0 0.1 1.0 10.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)GWA-11S 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)GWA-11BRU 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. •NA – Not Available •NE – Not Established Shallow (IMAC:1 µg/L, PBTV:10.65 µg/L) Bedrock (IMAC:1 µg/L, PBTV:1.497 µg/L) Deep (IMAC:1 µg/L, PBTV:5.1 µg/L) 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-20 TIME VERSUS CONCENTRATION COBALT FOR THE UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Source NA NA Source Downgradient Bedrock Deep Ash Pore Water Shallow IMAC Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)U5-2D 0.0 0.1 1.0 10.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)U5-2BR 0.0 0.1 1.0 10.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)U5-4S 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)U5-4D 0.0 0.1 1.0 10.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)GWA-2S 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)GWA-2BRU 0.0 0.1 1.0 10.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Cobalt Concentration (µg/L)MW-38BR 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. •NA – Not Available •NE – Not Established Shallow (IMAC:1 µg/L, PBTV:10.65 µg/L) Bedrock (IMAC:1 µg/L, PBTV:1.497 µg/L) Deep (IMAC:1 µg/L, PBTV:5.1 µg/L) 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-21 TIME VERSUS CONCENTRATION IRON IN BACKGROUND CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:300 µg/L, PBTV:684 µg/L) Bedrock (2L Std:300 µg/L, PBTV:6220 µg/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. •NA – Not Applicable •NE – Not Established DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:300 µg/L, PBTV:515 µg/L) Background Background Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)BG-1S 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)BG-1D 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)MW-24DR 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)MW-32S 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)MW-32D 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)MW-32BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-22 TIME VERSUS CONCENTRATION IRON FOR THE ACTIVE ASH BASIN (SHEET 1 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (Upper) (2L Std:300 µg/L, PBTV:684 µg/L) Shallow (Lower) (2L Std:300 µg/L, PBTV:684 µg/L) Bedrock (2L Std:300 µg/L, PBTV:6220 µg/L) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:300 µg/L, PBTV:515 µg/L) Source Source NA NA NA Source NA NA Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)AB-6D 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)AB-6BR 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)AB-1S 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)AB-4S 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)AB-4SL 0.0 200.0 400.0 600.0 800.0 1000.0 1200.0 1400.0 1600.0 1800.0 2000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)AB-4D 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 100000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)AB-4BR 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-23 TIME VERSUS CONCENTRATION IRON FOR THE ACTIVE ASH BASIN (SHEET 2 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:300 µg/L, PBTV:684 µg/L) Bedrock (2L Std:300 µg/L, PBTV:6220 µg/L) Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:300 µg/L, PBTV:515 µg/L) Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)GWA-21S 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)GWA-21BRU 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)GWA-21BR 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-24 TIME VERSUS CONCENTRATION IRON FOR THE UNITS 1-4 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:300 µg/L, PBTV:684 µg/L) Bedrock (2L Std:300 µg/L, PBTV:6220 µg/L) Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:300 µg/L, PBTV:515 µg/L) Upgradient NA Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)GWA-14S 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)GWA-14D 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)GWA-13BR 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)GWA-11S 0.0 500.0 1000.0 1500.0 2000.0 2500.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)GWA-11BRU 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-25 TIME VERSUS CONCENTRATION IRON FOR THE UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:300 µg/L, PBTV:684 µg/L) Bedrock (2L Std:300 µg/L, PBTV:6220 µg/L) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:300 µg/L, PBTV:515 µg/L) Source NA NA Source Downgradient Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 10000.0 20000.0 30000.0 40000.0 50000.0 60000.0 70000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)U5-2D 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)U5-2BR 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)U5-4S 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)U5-4D 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)GWA-2S 0.0 500.0 1000.0 1500.0 2000.0 2500.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)GWA-2BRU 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Iron Concentration (µg/L)MW-38BR 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-26 TIME VERSUS CONCENTRATION MANGANESE IN BACKGROUND CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:50 µg/L, PBTV:168.8 µg/L) Bedrock (2L Std:50 µg/L, PBTV:89.4 µg/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. •NA – Not Applicable •NE – Not Established DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:50 µg/L, PBTV:78.31 µg/L) Background Background Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)BG-1S 0.0 50.0 100.0 150.0 200.0 250.0 300.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)BG-1D 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)MW-24DR 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)MW-32S 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)MW-32D 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)MW-32BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-27 TIME VERSUS CONCENTRATION MANGANESE FOR THE ACTIVE ASH BASIN (SHEET 1 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (Upper) (2L Std:50 µg/L, PBTV:168.8 µg/L) Shallow (Lower) (2L Std:50 µg/L, PBTV:168.8 µg/L) Bedrock (2L Std:50 µg/L, PBTV:89.4 µg/L) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:50 µg/L, PBTV:78.31 µg/L) Source Source NA NA NA Source NA NA Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)AB-6D 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)AB-6BR 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)AB-1S 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)AB-4S 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)AB-4SL 0.0 200.0 400.0 600.0 800.0 1000.0 1200.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)AB-4D 0.0 50.0 100.0 150.0 200.0 250.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)AB-4BR 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-28 TIME VERSUS CONCENTRATION MANGANESE FOR THE ACTIVE ASH BASIN (SHEET 2 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:50 µg/L, PBTV:168.8 µg/L) Bedrock (2L Std:50 µg/L, PBTV:89.4 µg/L) Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:50 µg/L, PBTV:78.31 µg/L) Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)GWA-21S 0.0 20.0 40.0 60.0 80.0 100.0 120.0 140.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)GWA-21BRU 0.0 50.0 100.0 150.0 200.0 250.0 300.0 350.0 400.0 450.0 500.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)GWA-21BR 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-29 TIME VERSUS CONCENTRATION MANGANESE FOR THE UNITS 1-4 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:50 µg/L, PBTV:168.8 µg/L) Bedrock (2L Std:50 µg/L, PBTV:89.4 µg/L) Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:50 µg/L, PBTV:78.31 µg/L) Upgradient NA Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)GWA-14S 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)GWA-14D 0.0 50.0 100.0 150.0 200.0 250.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)GWA-13BR 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)GWA-11S 0.0 200.0 400.0 600.0 800.0 1000.0 1200.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)GWA-11BRU 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-30 TIME VERSUS CONCENTRATION MANGANESE FOR THE UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:50 µg/L, PBTV:168.8 µg/L) Bedrock (2L Std:50 µg/L, PBTV:89.4 µg/L) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:50 µg/L, PBTV:78.31 µg/L) Source NA NA Source Downgradient Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 500.0 1000.0 1500.0 2000.0 2500.0 3000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)U5-2D 0.0 1000.0 2000.0 3000.0 4000.0 5000.0 6000.0 7000.0 Apr-15Oct-15May-16Nov-16Jun-17Manganese Concentration (µg/L)U5-2BR 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)U5-4S 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)U5-4D 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)GWA-2S 0.0 50.0 100.0 150.0 200.0 250.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)GWA-2BRU 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Manganese Concentration (µg/L)MW-38BR 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-31 TIME VERSUS CONCENTRATION pH IN BACKGROUND CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:6.5-8.5 S.U., PBTV:4.4-6.1 S.U.) Bedrock (2L Std:6.5-8.5 S.U., PBTV:5.4-7.4 S.U.) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:6.5-8.5 S.U., PBTV:4.8-6.1 S.U.) Background Background Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard (Range) Provisional Background Threshold Value 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)BG-1S 3 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)BG-1D 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)MW-24DR 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)MW-32S 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)MW-32D 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)MW-32BR 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-32 TIME VERSUS CONCENTRATION pH FOR THE ACTIVE ASH BASIN (SHEET 1 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (Upper) (2L Std:6.5-8.5 S.U., PBTV:4.4-6.1 S.U.) Shallow (Lower) (2L Std:6.5-8.5 S.U., PBTV:4.4-6.1 S.U.) Bedrock (2L Std:6.5-8.5 S.U., PBTV:5.4-7.4 S.U.) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:6.5-8.5 S.U., PBTV:4.8-6.1 S.U.) Source Source NA NA NA Source NA NA Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard (Range) Provisional Background Threshold Value 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)AB-6D 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)AB-6BR 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)AB-1S 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)AB-4S 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)AB-4SL 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)AB-4D 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)AB-4BR 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-33 TIME VERSUS CONCENTRATION pH FOR THE ACTIVE ASH BASIN (SHEET 2 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:6.5-8.5 S.U., PBTV:4.4-6.1 S.U.) Bedrock (2L Std:6.5-8.5 S.U., PBTV:5.4-7.4 S.U.) Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:6.5-8.5 S.U., PBTV:4.8-6.1 S.U.) Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard (Range) Provisional Background Threshold Value 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)GWA-21S 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)GWA-21BRU 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)GWA-21BR 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-34 TIME VERSUS CONCENTRATION pH FOR THE UNITS 1-4 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:6.5-8.5 S.U., PBTV:4.4-6.1 S.U.) Bedrock (2L Std:6.5-8.5 S.U., PBTV:5.4-7.4 S.U.) Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:6.5-8.5 S.U., PBTV:4.8-6.1 S.U.) Upgradient NA Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard (Range) Provisional Background Threshold Value 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)GWA-14S 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)GWA-14D 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)GWA-13BR 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)GWA-11S 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)GWA-11BRU 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-35 TIME VERSUS CONCENTRATION pH FOR THE UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:6.5-8.5 S.U., PBTV:4.4-6.1 S.U.) Bedrock (2L Std:6.5-8.5 S.U., PBTV:5.4-7.4 S.U.) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:6.5-8.5 S.U., PBTV:4.8-6.1 S.U.) Source NA NA Source Downgradient Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard (Range) Provisional Background Threshold Value 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)U5-2D 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)U5-2BR 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)U5-4S 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)U5-4D 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)GWA-2S 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)GWA-2BRU 4 5 6 7 8 9 10 11 12 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17pH (S.U.)MW-32BR 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-36 TIME VERSUS CONCENTRATION RADIUM IN BACKGROUND CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (Federal MCL:5 pCi/L, PBTV:2.58 pCi/L) Bedrock (Federal MCL:5 pCi/L, PBTV:3.1 pCi/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. •NA – Not Applicable •NE – Not Established DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (Federal MCL:5 pCi/L, PBTV:1.5 pCi/L) Background NA NA Background Bedrock Deep Ash Pore Water Shallow Federal MCL Provisional Background Threshold Value 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Radium Concentration (pCi/L)MW-32S 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Radium Concentration (pCi/L)MW-32D 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Radium Concentration (pCi/L)MW-24DR 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Radium Concentration (pCi/L)MW-32BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-37 TIME VERSUS CONCENTRATION RADIUM FOR THE ACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Source Bedrock Deep Ash Pore Water Shallow Federal MCL Provisional Background Threshold Value P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Radium Concentration (pCi/L)AB-01S Downgradient 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Radium Concentration (pCi/L)GWA-21S NA NA NA NA NA NA Shallow (Federal MCL:5 pCi/L, PBTV:2.58 pCi/L) Bedrock (Federal MCL:5 pCi/L, PBTV:3.1 pCi/L) Deep (Federal MCL:5 pCi/L, PBTV:1.5 pCi/L) Shallow (Federal MCL:5 pCi/L, PBTV:2.58 pCi/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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-38 TIME VERSUS CONCENTRATION RADIUM FOR THE UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 NA Source NA Downgradient NA NA Bedrock Deep Ash Pore Water Shallow Federal MCL Provisional Background Threshold Value P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (Federal MCL:5 pCi/L, PBTV:2.58 pCi/L) Bedrock (Federal MCL:5 pCi/L, PBTV:3.1 pCi/L) Deep (Federal MCL:5 pCi/L, PBTV:1.5 pCi/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. •NA – Not Applicable •NE – Not Established 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Radium Concentration (pCi/L)U5-2BR 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Radium Concentration (pCi/L)MW-38BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-39 TIME VERSUS CONCENTRATION STRONTIUM IN BACKGROUND CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:NE, PBTV:36.73 µg/L) Bedrock (2L Std:NE, PBTV:107.1 µg/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. •NA – Not Applicable •NE – Not Established DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:NE, PBTV:56.14 µg/L) Background Background Bedrock Deep Ash Pore Water Shallow Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)BG-1S 0.0 10.0 20.0 30.0 40.0 50.0 60.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)BG-1D 0.0 0.1 1.0 10.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)MW-32S 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)MW-32D 0.0 20.0 40.0 60.0 80.0 100.0 120.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)MW-24DR 0.0 20.0 40.0 60.0 80.0 100.0 120.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)MW-32BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-40 TIME VERSUS CONCENTRATION STRONTIUM FOR THE ACTIVE ASH BASIN (SHEET 1 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (Upper) (2L Std:NE, PBTV:36.73 µg/L) Shallow (Lower) (2L Std:NE, PBTV:36.73 µg/L) Bedrock (2L Std:NE, PBTV:107.1 µg/L) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:NE, PBTV:56.14 µg/L) Source Source NA NA NA Source NA NA Bedrock Deep Ash Pore Water Shallow Provisional Background Threshold Value 0.0 10.0 20.0 30.0 40.0 50.0 60.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)AB-6D 0.0 0.1 1.0 10.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)AB-1S 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)AB-4S 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)AB-4SL 0.0 50.0 100.0 150.0 200.0 250.0 300.0 350.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)AB-4D 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. •NA – Not Applicable •NE – Not Established 0.0 20.0 40.0 60.0 80.0 100.0 120.0 140.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)AB-6BR 0.0 20.0 40.0 60.0 80.0 100.0 120.0 140.0 160.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)AB-4BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-41 TIME VERSUS CONCENTRATION STRONTIUM FOR THE ACTIVE ASH BASIN (SHEET 2 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:NE, PBTV:36.73 µg/L) Bedrock (2L Std:NE, PBTV:107.1 µg/L) Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:NE, PBTV:56.14 µg/L) Bedrock Deep Ash Pore Water Shallow Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)GWA-21S 0.0 20.0 40.0 60.0 80.0 100.0 120.0 140.0 160.0 180.0 200.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)GWA-21BRU 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. •NA – Not Applicable •NE – Not Established 0.0 50.0 100.0 150.0 200.0 250.0 300.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)GWA-21BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-42 TIME VERSUS CONCENTRATION STRONTIUM FOR THE UNITS 1-4 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:NE, PBTV:36.73 µg/L) Bedrock (2L Std:NE, PBTV:107.1 µg/L) Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:NE, PBTV:56.14 µg/L) Upgradient NA Bedrock Deep Ash Pore Water Shallow Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)GWA-14S 0.0 50.0 100.0 150.0 200.0 250.0 300.0 350.0 400.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)GWA-14D 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)GWA-11S 0.0 50.0 100.0 150.0 200.0 250.0 300.0 350.0 400.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)GWA-11BRU 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. •NA – Not Applicable •NE – Not Established 0.0 20.0 40.0 60.0 80.0 100.0 120.0 140.0 160.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)GWA-13BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-43 TIME VERSUS CONCENTRATION STRONTIUM FOR THE UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:NE, PBTV:36.73 µg/L) Bedrock (2L Std:NE, PBTV:107.1 µg/L) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:NE, PBTV:56.14 µg/L) Source NA NA Source Downgradient Bedrock Deep Ash Pore Water Shallow Provisional Background Threshold Value 0.0 500.0 1000.0 1500.0 2000.0 2500.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)U5-2D 0.0 0.1 1.0 10.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)U5-4S 0.0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 100.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)U5-4D 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)GWA-2S 0.0 20.0 40.0 60.0 80.0 100.0 120.0 140.0 160.0 180.0 200.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)GWA-2BRU 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. •NA – Not Applicable •NE – Not Established 0.0 50.0 100.0 150.0 200.0 250.0 300.0 350.0 400.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)U5-2BR 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Strontium Concentration (µg/L)MW-38BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-44 TIME VERSUS CONCENTRATION SULFATE IN BACKGROUND CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:250 mg/L, PBTV:1.169 mg/L) Bedrock (2L Std:250 mg/L, PBTV:15.1 mg/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. •NA – Not Applicable •NE – Not Established DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:250 mg/L, PBTV:10 mg/L) Background Background Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)BG-1S 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)BG-1D 0.0 50.0 100.0 150.0 200.0 250.0 300.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)MW-24DR 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)MW-32S 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)MW-32D 0.0 50.0 100.0 150.0 200.0 250.0 300.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)MW-32BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-45 TIME VERSUS CONCENTRATION SULFATE FOR THE ACTIVE ASH BASIN (SHEET 1 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (Upper) (2L Std:250 mg/L, PBTV:1.169 mg/L) Shallow (Lower) (2L Std:250 mg/L, PBTV:1.169 mg/L) Bedrock (2L Std:250 mg/L, PBTV:15.1 mg/L) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:250 mg/L, PBTV:10 mg/L) Source Source NA NA NA Source NA NA Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)AB-6D 0.0 50.0 100.0 150.0 200.0 250.0 300.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)AB-6BR 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)AB-1S 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)AB-4S 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)AB-4SL 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)AB-4D 0.0 50.0 100.0 150.0 200.0 250.0 300.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)AB-4BR 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-46 TIME VERSUS CONCENTRATION SULFATE FOR THE ACTIVE ASH BASIN (SHEET 2 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:250 mg/L, PBTV:1.169 mg/L) Bedrock (2L Std:250 mg/L, PBTV:15.1 mg/L) Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:250 mg/L, PBTV:10 mg/L) Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)GWA-21S 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)GWA-21BRU 0.0 50.0 100.0 150.0 200.0 250.0 300.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)GWA-21BR 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-47 TIME VERSUS CONCENTRATION SULFATE FOR THE UNITS 1-4 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:250 mg/L, PBTV:1.169 mg/L) Bedrock (2L Std:250 mg/L, PBTV:15.1 mg/L) Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:250 mg/L, PBTV:10 mg/L) Upgradient NA Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)GWA-14S 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)GWA-14D 0.0 50.0 100.0 150.0 200.0 250.0 300.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)GWA-13BR 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)GWA-11S 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)GWA-11BRU 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-48 TIME VERSUS CONCENTRATION SULFATE FOR THE UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:250 mg/L, PBTV:1.169 mg/L) Bedrock (2L Std:250 mg/L, PBTV:15.1 mg/L) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:250 mg/L, PBTV:10 mg/L) Source NA NA Source Downgradient Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)U5-2D 0.0 50.0 100.0 150.0 200.0 250.0 300.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)U5-2BR 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)U5-4S 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)U5-4D 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)GWA-2S 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)GWA-2BRU 0.0 50.0 100.0 150.0 200.0 250.0 300.0 350.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Sulfate Concentration (mg/L)MW-38BR 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-49 TIME VERSUS CONCENTRATION TOTAL DISSOLVED SOLIDS IN BACKGROUND CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:500 mg/L, PBTV:75.47 mg/L) Bedrock (2L Std:500 mg/L, PBTV:120 mg/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. •NA – Not Applicable •NE – Not Established DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:500 mg/L, PBTV:70.98 mg/L) Background Background Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)BG-1S 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)BG-1D 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)MW-24DR 0.0 0.1 1.0 10.0 100.0 1000.0 10000.0 100000.0 Apr-15Oct-15May-16Nov-16Jun-17Total Dissolved Solids Concentration (mg/L)MW-32S 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)MW-32D 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)MW-32BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-50 TIME VERSUS CONCENTRATION TOTAL DISSOLVED SOLIDS FOR THE ACTIVE ASH BASIN (SHEET 1 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (Upper) (2L Std:500 mg/L, PBTV:75.47 mg/L) Shallow (Lower) (2L Std:500 mg/L, PBTV:75.47 mg/L) Bedrock (2L Std:500 mg/L, PBTV:120 mg/L) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:500 mg/L, PBTV:70.98 mg/L) Source Source NA NA NA Source NA NA Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)AB-6D 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)AB-6BR 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)AB-1S 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)AB-4S 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)AB-4SL 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)AB-4D 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)AB-4BR 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-51 TIME VERSUS CONCENTRATION TOTAL DISSOLVED SOLIDS FOR THE ACTIVE ASH BASIN (SHEET 2 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:500 mg/L, PBTV:75.47 mg/L) Bedrock (2L Std:500 mg/L, PBTV:120 mg/L) Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:500 mg/L, PBTV:70.98 mg/L) Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)GWA-21S 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)GWA-21BRU 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)GWA-21BR 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-52 TIME VERSUS CONCENTRATION TOTAL DISSOLVED SOLIDS FOR THE UNITS 1-4 INACTIVE BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:500 mg/L, PBTV:75.47 mg/L) Bedrock (2L Std:500 mg/L, PBTV:120 mg/L) Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:500 mg/L, PBTV:70.98 mg/L) Upgradient NA Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)GWA-14S 0.0 100.0 200.0 300.0 400.0 500.0 600.0 700.0 800.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)GWA-14D 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)GWA-13BR 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)GWA-11S 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)GWA-11BRU 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-53 TIME VERSUS CONCENTRATION TOTAL DISSOLVED SOLIDS FOR THE UNIT 5 INACTIVE BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (2L Std:500 mg/L, PBTV:75.47 mg/L) Bedrock (2L Std:500 mg/L, PBTV:120 mg/L) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (2L Std:500 mg/L, PBTV:70.98 mg/L) Source NA NA Source Downgradient Bedrock Deep Ash Pore Water Shallow 15 NCAC 2L Standard Provisional Background Threshold Value 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)U5-2D 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)U5-2BR 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)U5-4S 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)U5-4D 0.0 0.1 1.0 10.0 100.0 1000.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)GWA-2S 0.0 100.0 200.0 300.0 400.0 500.0 600.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)GWA-2BRU 0.0 100.0 200.0 300.0 400.0 500.0 600.0 700.0 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Total Dissolved Solids Concentration (mg/L)MW-38BR 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-54 TIME VERSUS CONCENTRATION THALLIUM IN BACKGROUND CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (IMAC:0.2 µg/L, PBTV:0.117 µg/L) Bedrock (IMAC:0.2 µg/L, PBTV:0.2 µg/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. •NA – Not Applicable •NE – Not Established DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (IMAC:0.2 µg/L, PBTV:0.063 µg/L) Background Background Bedrock Deep Ash Pore Water Shallow IMAC Provisional Background Threshold Value 0.00 0.05 0.10 0.15 0.20 0.25 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)BG-1S 0.00 0.05 0.10 0.15 0.20 0.25 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)BG-1D 0.00 0.05 0.10 0.15 0.20 0.25 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)MW-24DR 0.00 0.05 0.10 0.15 0.20 0.25 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)MW-32S 0.00 0.05 0.10 0.15 0.20 0.25 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)MW-32D 0.00 0.05 0.10 0.15 0.20 0.25 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)MW-32BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-55 TIME VERSUS CONCENTRATION THALLIUM FOR THE ACTIVE ASH BASIN (SHEET 1 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA Shallow (Upper) (IMAC:0.2 µg/L, PBTV:0.117 µg/L) Shallow (Lower) (IMAC:0.2 µg/L, PBTV:0.117 µg/L) Bedrock (IMAC:0.2 µg/L, PBTV:0.2 µg/L) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (IMAC:0.2 µg/L, PBTV:0.063 µg/L) Source Source NA NA NA Source NA NA Bedrock Deep Ash Pore Water Shallow IMAC Provisional Background Threshold Value P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series 0.00 0.05 0.10 0.15 0.20 0.25 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)AB-6D 0.00 0.05 0.10 0.15 0.20 0.25 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)AB-6BR 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)AB-1S 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)AB-4S 0.00 0.05 0.10 0.15 0.20 0.25 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)AB-4SL 0.00 0.05 0.10 0.15 0.20 0.25 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)AB-4D 0.00 0.05 0.10 0.15 0.20 0.25 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)AB-4BR 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-56 TIME VERSUS CONCENTRATION THALLIUM FOR THE ACTIVE ASH BASIN (SHEET 2 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Bedrock Deep Ash Pore Water Shallow IMAC Provisional Background Threshold Value P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)GWA-21S 0.00 0.05 0.10 0.15 0.20 0.25 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)GWA-21BRU 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)GWA-21BR Shallow (IMAC:0.2 µg/L, PBTV:0.117 µg/L) Bedrock (IMAC:0.2 µg/L, PBTV:0.2 µg/L) Deep (IMAC:0.2 µg/L, PBTV:0.063 µg/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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-57 TIME VERSUS CONCENTRATION THALLIUM FOR THE UNITS 1-4 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Upgradient NA Bedrock Deep Ash Pore Water Shallow IMAC Provisional Background Threshold Value P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)GWA-14S 0.00 0.50 1.00 1.50 2.00 2.50 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)GWA-14D 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)GWA-13BR 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)GWA-11S 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)GWA-11BRU Shallow (IMAC:0.2 µg/L, PBTV:0.117 µg/L) Bedrock (IMAC:0.2 µg/L, PBTV:0.2 µg/L) Deep (IMAC:0.2 µg/L, PBTV:0.063 µg/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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-58 TIME VERSUS CONCENTRATION THALLIUM FOR THE UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Source NA NA Source Downgradient Bedrock Deep Ash Pore Water Shallow IMAC Provisional Background Threshold Value P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)U5-2D 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)U5-2BR 0.00 0.05 0.10 0.15 0.20 0.25 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)U5-4S 0.00 0.05 0.10 0.15 0.20 0.25 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)U5-4D 0.00 0.05 0.10 0.15 0.20 0.25 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)GWA-2S 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)GWA-2BRU 0.00 0.05 0.10 0.15 0.20 0.25 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Thallium Concentration (µg/L)MW-38BR Shallow (IMAC:0.2 µg/L, PBTV:0.117 µg/L) Bedrock (IMAC:0.2 µg/L, PBTV:0.2 µg/L) Deep (IMAC:0.2 µg/L, PBTV:0.063 µg/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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-59 TIME VERSUS CONCENTRATION URANIUM IN BACKGROUND CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (Federal MCL:0.03 µg/mL, PBTV:0.0005 µg/mL) Bedrock (Federal MCL:0.03 µg/mL, PBTV:0.0005 µg/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. •NA – Not Applicable •NE – Not Established DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (Federal MCL:0.03 µg/mL, PBTV:0.0005 µg/mL) Background Background Bedrock Deep Ash Pore Water Shallow Federal MCL Provisional Background Threshold Value 0.0000 0.0050 0.0100 0.0150 0.0200 0.0250 0.0300 0.0350 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Uranium Concentration (µg/mL)BG-1D 0.0000 0.0050 0.0100 0.0150 0.0200 0.0250 0.0300 0.0350 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Uranium Concentration (µg/mL)MW-32D 0.0000 0.0050 0.0100 0.0150 0.0200 0.0250 0.0300 0.0350 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Uranium Concentration (µg/mL)MW-24DR 0.0000 0.0050 0.0100 0.0150 0.0200 0.0250 0.0300 0.0350 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Uranium Concentration (µg/mL)MW-32BR 0.0000 0.0050 0.0100 0.0150 0.0200 0.0250 0.0300 0.0350 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Uranium Concentration (µg/mL)BG-01S 0.0000 0.0050 0.0100 0.0150 0.0200 0.0250 0.0300 0.0350 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Uranium Concentration (µg/mL)MW-32S 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-60 TIME VERSUS CONCENTRATION URANIUM FOR THE ACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA Shallow (Upper) (Federal MCL:0.03 µg/mL, PBTV:0.0005 µg/mL) Bedrock (Federal MCL:0.03 µg/mL, PBTV:0.0005 µg/mL) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (Federal MCL:0.03 µg/mL, PBTV:0.0005 µg/mL) Source NA Bedrock Deep Ash Pore Water Shallow Provisional Background Threshold Value P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Federal MCL 0.0000 0.0050 0.0100 0.0150 0.0200 0.0250 0.0300 0.0350 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Uranium Concentration (µg/mL)AB-01S NA Downgradient 0.0000 0.0050 0.0100 0.0150 0.0200 0.0250 0.0300 0.0350 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Uranium Concentration (µg/mL)GWA-21BRU 0.000 0.005 0.010 0.015 0.020 0.025 0.030 0.035 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Uranium Concentration (µg/mL)GWA-21BR 0.0000 0.0050 0.0100 0.0150 0.0200 0.0250 0.0300 0.0350 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Uranium Concentration (µg/mL)GWA-21S 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-61 TIME VERSUS CONCENTRATION URANIUM FOR THE UNITS 1-4 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA Shallow (Federal MCL:0.03 µg/mL, PBTV:0.0005 µg/mL) Bedrock (Federal MCL:0.03 µg/mL, PBTV:0.0005 µg/mL) Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (Federal MCL:0.03 µg/mL, PBTV:0.0005 µg/mL) NA Bedrock Deep Ash Pore Water Shallow Provisional Background Threshold Value P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Federal MCL 0.000 0.005 0.010 0.015 0.020 0.025 0.030 0.035 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Uranium Concentration (µg/mL)GWA-11BRU 0.000 0.005 0.010 0.015 0.020 0.025 0.030 0.035 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Uranium Concentration (µg/mL)GWA-11S 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-62 TIME VERSUS CONCENTRATION URANIUM FOR THE UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA Shallow (Federal MCL:0.03 µg/mL, PBTV:0.0005 µg/mL) Bedrock (Federal MCL:0.03 µg/mL, PBTV:0.0005 µg/mL) DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (Federal MCL:0.03 µg/mL, PBTV:0.0005 µg/mL) Downgradient Bedrock Deep Ash Pore Water Shallow Provisional Background Threshold Value P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Federal MCL 0.0000 0.0050 0.0100 0.0150 0.0200 0.0250 0.0300 0.0350 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Uranium Concentration (µg/mL)GWA-02BRU 0.000 0.005 0.010 0.015 0.020 0.025 0.030 0.035 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Uranium Concentration (µg/mL)GWA-21BR 0.0000 0.0050 0.0100 0.0150 0.0200 0.0250 0.0300 0.0350 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Uranium Concentration (µg/mL)GWA-02S 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. •NA – Not Applicable •NE – Not Established 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-63 TIME VERSUS CONCENTRATION VANADIUM IN BACKGROUND CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series Shallow (IMAC:0.3 µg/L, PBTV:0.8 µg/L) Bedrock (IMAC:0.3 µg/L, PBTV:0.37 µg/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. •NA – Not Applicable •NE – Not Established DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (IMAC:0.3 µg/L, PBTV:1.095 µg/L) Background Background Bedrock Deep Ash Pore Water Shallow IMAC Provisional Background Threshold Value 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)BG-1S 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)BG-1D 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)MW-24DR 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)MW-32S 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)MW-32D 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)MW-32BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-64 TIME VERSUS CONCENTRATION VANADIUM FOR THE ACTIVE ASH BASIN (SHEET 1 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA Shallow (Upper) (IMAC:0.3 µg/L, PBTV:0.8 µg/L) Shallow (Lower) (IMAC:0.3 µg/L, PBTV:0.8 µg/L) Bedrock (IMAC:0.3 µg/L, PBTV:0.37 µg/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. DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (IMAC:0.3 µg/L, PBTV:1.095 µg/L) Source Source NA NA NA Source NA NA Bedrock Deep Ash Pore Water Shallow IMAC Provisional Background Threshold Value P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)AB-6D 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)AB-6BR 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)AB-1S 0.00 5.00 10.00 15.00 20.00 25.00 30.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)AB-4S 0.00 50.00 100.00 150.00 200.00 250.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)AB-4SL 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)AB-4D 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)AB-4BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-65 TIME VERSUS CONCENTRATION VANADIUM FOR THE ACTIVE ASH BASIN (SHEET 2 OF 2) CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA Shallow (IMAC:0.3 µg/L, PBTV:0.8 µg/L) Bedrock (IMAC:0.3 µg/L, PBTV:0.37 µg/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. Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (IMAC:0.3 µg/L, PBTV:1.095 µg/L) Bedrock Deep Ash Pore Water Shallow IMAC Provisional Background Threshold Value P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)GWA-21S 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)GWA-21BRU 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)GWA-21BR 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-66 TIME VERSUS CONCENTRATION VANADIUM FOR THE UNITS 1-4 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA Shallow (IMAC:0.3 µg/L, PBTV:0.8 µg/L) Bedrock (IMAC:0.3 µg/L, PBTV:0.37 µg/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. Downgradient DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (IMAC:0.3 µg/L, PBTV:1.095 µg/L) Upgradient NA Bedrock Deep Ash Pore Water Shallow IMAC Provisional Background Threshold Value P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)GWA-14S 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)GWA-14D 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)GWA-13BR 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)GWA-11S 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)GWA-11BRU 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com FIGURE 14-67 TIME VERSUS CONCENTRATION VANADIUM FOR THE UNIT 5 INACTIVE ASH BASIN CLIFFSIDE STEAM STATION DUKE ENERGY CAROLINAS, LLC MOORESBORO, NORTH CAROLINA Shallow (IMAC:0.3 µg/L, PBTV:0.8 µg/L) Bedrock (IMAC:0.3 µg/L, PBTV:0.37 µg/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. DRAWN BY: M. YOUNGBLOOD PROJECT MANAGER: S. SPINNER LAYOUT: DATE: JANUARY 2018 Deep (IMAC:0.3 µg/L, PBTV:1.095 µg/L) Source NA NA Source Downgradient Bedrock Deep Ash Pore Water Shallow IMAC Provisional Background Threshold Value P:\Duke Energy Carolinas\21. CLIFFSIDE\CSA Update\Figures\Time Series 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)U5-2D 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)U5-2BR 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)U5-4S 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)U5-4D 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)GWA-2S 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)GWA-2BRU 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 Apr-15Jul-15Oct-15Jan-16May-16Aug-16Nov-16Mar-17Jun-17Sep-17Vanadium Concentration (µg/L)MW-38BR &<&< &<&< &<&<&< &<&<&<&< &<&<&< &<&<&< &<&< &<&<&< &< &<&< &<&<&< &<&<&<&<&< &<&<&< &< &<&< &<&<&<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&<&< &<&<&< &<&< &< &<&<&< &< &< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&< &<&<&< &< &<&<&<&< &<&< &<&< &<&< &<&<&< &< &< &< &<&< &<&<&<&< &<&< &<&<&< &< &< &<&< &<&< &< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&<&< &<&< &<&<&<&<&< &<&< &<&< &<&< &<&< &<&< &<&< &< &< &<&< &<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( AB-3S*7.7 CCPMW-6S5.2 GWA-33S4.7 MW-30S5.1 MW-32S5.1 U5-7SL*7.5 AB-1S4.9 AB-3I6.6 AB-4BR5.9 AB-4D5.1 AB-4S*8.9 AB-4SL*8.6 AB-5BR5.4 AB-5BRU5.5 AB-6S*8.0 AS-1D5.4 AS-1SB4.0 AS-2BR8.4 AS-2D6.8 AS-3BRU5.2 AS-4D6.0 AS-5BR6.9 AS-5S5.2 AS-6D5.4 AS-6S5.3 AS-7D5.4 CCPMW-2D8.9 CLMW-3S3.8 CLMW-46.2 GWA-1BRU6.9 GWA-2BRU6.2 GWA-4D5.4 GWA-4S3.9 GWA-5S5.1 GWA-10D5.0 GWA-14BR8.8 GWA-14D5.9 GWA-14S5.8 GWA-22BRU8.2 GWA-22S5.6 GWA-24D5.5 GWA-25S5.1 GWA-26S3.8 GWA-27BR6.5 GWA-31BRA6.2 GWA-31D6.6 GWA-35D6.7 GWA-35S5.6 GWA-36D5.8 GWA-37S5.7 GWA-43S5.1 GWA-47D5.1 GWA-48BR6.7 IB-1D7.9 MW-20D6.5 MW-21BR6.8 MW-30D8.4 MW-32D5.7 MW-34BRU7.3 MW-38D5.6 MW-38S5.1 U5-1D7.5 U5-3D5.6 U5-5D5.6 U5-8D6.0 CCPMW-4NA CCPMW-5NA GWA-6DNM GWA-25DNM GWA-26DNM U5-5BRNM AB-1D6.4 AB-2D6.3 AB-2S5.8 AB-3SL*8.0 AB-5S*8.0 AB-6BR6.3 AB-6D5.3 AS-2S4.4 AS-5BRU5.5 AS-7S*6.5 BG-1BR9.0 BG-1D5.7 BG-1S5.1 BG-2D6.4 CCPMW-1D5.4 CCPMW-1S4.9 CCPMW-2S5.3 CCPMW-3D5.4 CCPMW-3S5.0 CCPMW-6D5.4 CCPTW-1D7.6 CCPTW-1S5.3 CCPTW-25.3 CLMW-14.9 CLMW-24.3 CLMW-3D5.1 CLMW-5S4.5 CLMW-64.9 GWA-2S5.6 GWA-3D5.6 GWA-5BRU7.2 GWA-10S5.3 GWA-11BRU6.2 GWA-11S5.8 GWA-12BRU6.0 GWA-12S5.6 GWA-13BR6.5 GWA-20BR8.7 GWA-20D5.7 GWA-20S6.2 GWA-21BR7.2 GWA-21BRU6.1 GWA-21S5.6 GWA-23D5.3 GWA-24BR5.9 GWA-24S5.2GWA-27D5.1 GWA-27DA5.1 GWA-28BR6.5 GWA-28BRU6.1 GWA-29D5.8 GWA-30BR6.1 GWA-30S5.8 GWA-32D5.6 GWA-33BR8.6 GWA-33D6.0 GWA-34S5.9 GWA-36S3.7 GWA-37D5.8 GWA-43D6.4 GWA-44BR6.7 GWA-44D7.2 GWA-44S5.6 IB-1S*5.9 IB-3D6.1 IB-3S5.0 IB-4BR7.0 MW-2DA6.7 MW-4D6.9 MW-8D6.2 MW-8S6.5 MW-10D4.8 MW-10S5.0 MW-11S4.6 MW-20DR7.1 MW-21D4.3 MW-22DR5.7 MW-23D6.8 MW-23DR7.1 MW-23S4.8 MW-24D5.4 MW-24DR6.9 MW-25DR7.5 MW-32BR6.7 MW-36BRU8.9 MW-36S5.6 MW-38BR6.4 MW-40BRU7.3 MW-40S5.4 U5-1S6.4 U5-2BR5.8 U5-2D6.6 U5-4D7.8 U5-4S5.3 U5-6D5.6U5-7S*6.3 U5-8S6.4 AB-3BRUNM AS-6BRNM AS-7BRNM GWA-2BRNM GWA-29BRNM GWA-30BRUNM MW-22BRNM U5-4BRNM AS-4SNM AS-6BRA6.7 GWA-28S4.8 GWA-29BRA7.7 GWA-31BR6.2 GWA-32BRNM GWA-38DNM GWA-38S5.3 GWA-45S4.6 IB-2AL7.7 IB-2BRU8.0 IB-2I5.9 IB-2S-SL*6.9 IB-4D7.3 IB-4S-SL*6.6 MW-34S5.4 MW-42DA7.2 MW-42S5.6 U5-3SA5.5 AB-3BRUANM GWA-6SNM MW-2DNM MW-7DNM MW-42DNM U5-2 S-SLA*NM U5-6SNM U5-7DNM U5-8BRNM ACTIVEASH BASIN ASH STORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BROAD RIVER B R O A D R IV E R SUCK CREEKM C C O M B S R D D O W N R I V E R D R STATE RD 1209PROSPECT CHURCH RDFOX PL STATE RD 1207WOOD RDSTATE RD 2503RIVERFRONT DR PRO SPE CT CHURCH RD STATE RD 1209MCCRAW RD STATE RD 1002WESTON DRSTATE RD 1997 STATE RD 1994 OLD FIELD RDDYSART RDLIVERETT TRLD Y S A R T R D H IN E S R D S T A T E R D 2 1 0 2STA TE RD 1995COBB RDKIRBY RD STATERD 2100 HIN ES R D STAT E R D 2 1 0 2 STATE RD 2101 BALLENGER RD DUKE POWER RD OLD US HWY 221ASTATERD 1993US HWY 221 ALTpH CONCENTRATIONS ARE REPORTED IN S.U. AND THE NCAC 02L STANDARD IS A RANGEFROM 6.5 TO 8.5 S.U. NM = NO VALI D RESULT S; NA = NOT ANALYZE D; < = NOT DETECTED AT A CONCENTRATIONATTAINING T HE LABORATORY METHOD REPORTING LIMIT * ASH PORE WATER W ELL. PORE WATER IS CONSIDERED WASTEWATER AND GROUNDWATERSTANDARDS ARE NOT APPICABLE. THE DETERMINATION OF CONCENTRATI ON T RENDS OVER TIME ARE GENERALIZED BASEDON AVAILABLE DATA AND W ERE NOT STATISTICALLY DETERMINED. CONCENTRATIONS REPORTED ON FIGURE REPRE SENT MOST RECENT SAMPLE RESULTSFOR EACH WELL. COLLECTION DATES DEPICT ED ON FIGURE RANGE FROM MARCH 2015 TOAUGUST 2017. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFER TO ANALYTICAL DATATABLE NOTES FOR QUALI FIER DEFINITIONS. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY. AERIAL P HOTOGRAPHY OB TAINED F ROM GOOGLE EARTH PRO ON SEPTEMBER 27, 2017.AERIAL WAS COLLECTED ON JUNE 13, 2016. DRAWI NG HAS BEEN SET WIT H A P ROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 14-68GROUNDWATER CONCENTRATIONTREND ANALYSIS -pH IN ALL FLOW LAYERSCLIFFSIDE STEAM STATIONDUKE ENERGY CAROLINAS, LLCMOORESBORO, NORTH CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/29/2018 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\Cliffsid e \Mapdo cs\CSA_Supplement_2\Cliffside - GW Trend Analysis.mxd 500 0 500 1,000250 GRAPHIC SCAL E IN FEET CAROLINAS LEGEND ASH BASI N WASTE BOUNDARY ASH BASI N CO MPLIANCE BOUNDARY LA NDFI LL/ASH STORAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARYSURFACE WATER W IT H FLOW DIRECTION< UNKNOW N CONCENTRATION OVER TIME STABLE C ONCENTRATION OVER TIME INCREASI NG CONCENTRATION OVER TIME DECREASI NG CONCENTRATION OVER TIME &<MONITORING W ELL !(ABANDONED MONITORING W ELL NOTES: &<&< &<&< &<&<&< &<&<&<&< &<&<&< &<&<&< &<&< &<&<&< &< &<&< &<&<&< &<&<&<&<&< &<&<&< &< &<&< &<&<&<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&<&< &<&<&< &<&< &< &<&<&< &< &< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&< &<&<&< &< &<&<&<&< &<&< &<&< &<&< &<&<&< &< &< &< &<&< &<&<&<&< &<&< &<&<&< &< &< &<&< &<&< &< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&<&< &<&< &<&<&<&<&< &<&< &<&< &<&< &<&< &<&< &<&< &< &< &<&< &<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( AB-3S*128 AB-4SL*4250 AS-7S*368 CLMW-60.15 GWA-26S1.2 GWA-33D1.5 GWA-43S0.26 GWA-44S0.61 MW-2DA0.72 MW-25DR3.1 MW-30D1 U5-2BR127 U5-4D1 U5-7S*1440 U5-7 SL*160 AB-1D0.085 j AB-1S0.13 AB-2D0.11 AB-4D0.095 j AB-5BR0.054 j AB-5BRU0.5 AB-6BR0.051 j AB-6D0.041 j AB-6S*321 AS-1SB6.3 AS-2S5.1 AS-4D0.14GWA-5BRU0.54 GWA-10S0.25 GWA-11S0.99 GWA-12BRU0.15 GWA-14S0.21 GWA-22BRU0.49 GWA-27BR0.38 GWA-30BR0.12 GWA-35S0.24 MW-32BR0.11 MW-36S0.13 MW-38BR1.2 MW-40BRU0.81 MW-42S0.096 j U5-1D1.1 U5-8S9 GWA-25DNM AB-2S0.16 AB-3I3.5 AB-4BR0.31 AB-5S*1310 AS-1D0.066 j AS-2D1.7 AS-3BRU<0.1 AS-5BRU0.29 AS-5S0.084 j AS-6D0.14 AS-6S0.098 j AS-7D0.41 BG-1BR1.6 BG-1D0.062 j BG-1S<0.1 CCPMW-1D<0.1 CCPMW-1S<0.1 CCPMW-2D0.887 CCPMW-2S0.11 j CCPMW-3D<1 CCPMW-3S1 CCPMW-6D<1 CCPTW-1D0.842 j CCPTW-1S0.093 j CCPTW-20.116 j CLMW-11.3 CLMW-20.93 CLMW-3D0.093 j CLMW-3S2 CLMW-5S0.19 GWA-1BRU0.27 GWA-2BRU0.99 GWA-2S0.12 GWA-3D0.79 GWA-4D0.3 GWA-4S0.85 GWA-5S0.35 GWA-10D0.1 GWA-11BRU0.2 GWA-12S0.06 j GWA-13BR0.11 GWA-14D0.14 GWA-20D0.1 GWA-20S0.31 GWA-21BR0.05 j GWA-21BRU0.09 j GWA-22S0.31 GWA-23D0.041 j GWA-24BR<0.1 GWA-24D<0.1 GWA-24S0.043 jGWA-27D0.17 j+ GWA-27DA0.17 GWA-28BR0.18 GWA-28BRU0.54 GWA-29D0.083 j GWA-30S0.054 j GWA-31D0.43 GWA-32D0.053 j GWA-33S0.25GWA-34S0.14 GWA-35D0.13 GWA-36D0.45 GWA-36S1.8 GWA-37D0.37 GWA-37S1.2 GWA-43D0.15 GWA-44BR0.83 GWA-44D0.48 GWA-47D0.21 GWA-48BR0.096 j IB-1S*<1 IB-3D0.14 IB-3S<1 MW-4D<0.5 MW-8D0.06 j MW-8S0.53 MW-10D0.059 j MW-10S0.37 MW-11S0.24 MW-20D0.41 MW-20DR<0.1M1,R1 MW-21BR0.26 MW-21D<0.1 MW-22DR0.053 j MW-23D0.62 MW-23DR0.22 MW-23S0.27 MW-24D0.17 MW-24DR<0.1 MW-30S<0.1 MW-32D0.33 MW-32S0.09 j+ MW-34BRU0.13 MW-36BRU0.26 MW-38D0.81 MW-38S0.23 MW-40S0.13 U5-1S2 U5-2D3700 U5-4S0.1 U5-5D0.8 U5-6D1.5 U5-8D0.13 MW-22BRNM AB-3SL*870 AB-4S*178 AS-2BR2.2 AS-4SNM AS-5BR1.1 AS-6BRA1 BG-2D1 CCPMW-6S0.182 CLMW-40.36 j GWA-14BR0.74 GWA-20BR0.65 GWA-21S0.56 GWA-25S0.73 GWA-28S0.18 j+ GWA-29BRA1.7 GWA-31BR0.1 GWA-31BRA0.1 GWA-32BRNM GWA-33BR0.086 j GWA-38DNM GWA-38S0.083 j GWA-45S3 IB-1D0.81IB-2AL0.77 IB-2BRU<0.5 IB-2I0.54 j+ IB-2S-SL*189 IB-4BR0.13 j IB-4D0.54 j+ IB-4S-SL*356 MW-34S0.048 j MW-42DA0.5 U5-3D0.14 U5-3SA0.19 AB-3BRUNM AB-3BRUANM AS-6BRNM AS-7BRNM CCPMW-4NA CCPMW-5NA GWA-2BRNM GWA-6DNM GWA-6SNM GWA-26DNM GWA-29BRNM GWA-30BRUNM MW-2DNM MW-7DNM MW-42DNM U5-2S-SLA*NM U5-4BRNM U5-5BRNM U5-6SNM U5-7DNM U5-8BRNM ACTIVEASH BASIN ASH STORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BROAD RIVER B R O A D R IV E R SUCK CREEKM C C O M B S R D D O W N R I V E R D R STATE RD 1209PROSPECT CHURCH RDFOX PL STATE RD 1207WOOD RDSTATE RD 2503RIVERFRONT DR PRO SPE CT CHURCH RD STATE RD 1209MCCRAW RD STATE RD 1002WESTON DRSTATE RD 1997 STATE RD 1994 OLD FIELD RDDYSART RDLIVERETT TRLD Y S A R T R D H IN E S R D S T A T E R D 2 1 0 2STA TE RD 1995COBB RDKIRBY RD STATERD 2100 HIN ES R D STAT E R D 2 1 0 2 STATE RD 2101 BALLENGER RD DUKE POWER RD OLD US HWY 221ASTATERD 1993US HWY 221 ALTARSENIC CONCENTRATIONS ARE REP ORTE D IN µg/L AND THE NCAC 02L STANDARD IS 10µg/L. NM = NO VALI D RESULT S; NA = NOT ANALYZE D; < = NOT DETECTED AT A CONCENTRATIONATTAINING T HE LABORATORY METHOD REPORTING LIMIT * ASH PORE WATER W ELL. PORE WATER IS CONSIDERED WASTEWATER AND GROUNDWATERSTANDARDS ARE NOT APPICABLE. THE DETERMINATION OF CONCENTRATI ON T RENDS OVER TIME ARE GENERALIZED BASEDON AVAILABLE DATA AND W ERE NOT STATISTICALLY DETERMINED. CONCENTRATIONS REPORTED ON FIGURE REPRE SENT MOST RECENT SAMPLE RESULTSFOR EACH WELL. COLLECTION DATES DEPICT ED ON FIGURE RANGE FROM MARCH 2015 TOAUGUST 2017. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFER TO ANALYTICAL DATATABLE NOTES FOR QUALI FIER DEFINITIONS. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY. AERIAL P HOTOGRAPHY OB TAINED F ROM GOOGLE EARTH PRO ON SEPTEMBER 27, 2017.AERIAL WAS COLLECTED ON JUNE 13, 2016. DRAWI NG HAS BEEN SET WIT H A P ROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 14-69GROUNDWATER CONCENTRATIONTREND ANALYSIS -ARSENIC IN ALL FLOW LAYERSCLIFFSIDE STEAM STATIONDUKE ENERGY CAROLINAS, LLCMOORESBORO, NORTH CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/29/2018 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\Cliffsid e \Mapdo cs\CSA_Supplement_2\Cliffside - GW Trend Analysis.mxd 500 0 500 1,000250 GRAPHIC SCAL E IN FEET CAROLINAS LEGEND ASH BASI N WASTE BOUNDARY ASH BASI N CO MPLIANCE BOUNDARY LA NDFI LL/ASH STORAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARYSURFACE WATER W IT H FLOW DIRECTION< UNKNOW N CONCENTRATION OVER TIME STABLE C ONCENTRATION OVER TIME INCREASI NG CONCENTRATION OVER TIME DECREASI NG CONCENTRATION OVER TIME &<MONITORING W ELL !(ABANDONED MONITORING W ELL NOTES: &<&< &<&< &<&<&< &<&<&<&< &<&<&< &<&<&< &<&< &<&<&< &< &<&< &<&<&< &<&<&<&<&< &<&<&< &< &<&< &<&<&<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&<&< &<&<&< &<&< &< &<&<&< &< &< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&< &<&<&< &< &<&<&<&< &<&< &<&< &<&< &<&<&< &< &< &< &<&< &<&<&<&< &<&< &<&<&< &< &< &<&< &<&< &< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&<&< &<&< &<&<&<&<&< &<&< &<&< &<&< &<&< &<&< &<&< &< &< &<&< &<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( AB-2D162 AB-3SL*948 AB-4S*1760 AS-1D620 AS-2D338 AS-7D728 AS-7S*1120CLMW-2387 CLMW-3D682 CLMW-3S766 GWA-20D817 GWA-22S234 GWA-31D74.9 GWA-33BR79.8 GWA-47D267 IB-3S880 MW-20D598 U5-2BR102 GWA-2BRNM AB-3S*2500 AB-4BR31.8 j AB-4SL*986 CLMW-11530 GWA-10S134 GWA-13BR92.8 GWA-20S223 GWA-27D939 GWA-27DA915 GWA-38DNM IB-1S*165 U5-2D118 U5-4S68.9 CCPMW-4NA AB-1D610 AB-1S<50 AB-2S182 AB-3I68.4 AB-4D<50 AB-5BR<50 AB-5BRU<50 AB-5S*4140 AB-6BR<50 AB-6D<50 AB-6S*4310 AS-1SB1420 AS-2BR381 AS-3BRU<50 AS-4D<50 AS-4SNM AS-5BR<50 AS-5BRU<50 AS-5S<50 AS-6D<50 AS-6S<50 BG-1BR<50 BG-1D<50 BG-1S<50 BG-2D<50 CCPMW-1D<50 CCPMW-1S<50 CCPMW-2D9.27 CCPMW-2S<50 CCPMW-3D13.6 j CCPMW-3S26.6 CCPTW-1D<50 CCPTW-1S<50 CCPTW-2<50 CLMW-458 CLMW-5S<50 CLMW-6<50 GWA-1BRU<50 GWA-2BRU61.6 GWA-2S131 GWA-3D416 GWA-4D184 GWA-4S192 GWA-5BRU26 j GWA-5S<50 GWA-10D<50 GWA-11BRU396 GWA-11S397 GWA-12BRU<50 M1 GWA-12S<50 GWA-14BR<50 GWA-14D58.2 GWA-14S67.6 GWA-21BR102 GWA-21BRU137 GWA-21S74.9 GWA-22BRU<50 GWA-23D<50 GWA-24BR<50 GWA-24D<50 GWA-24S<50 GWA-25S<50 GWA-26S<50 GWA-27BR210 GWA-28BR<50 GWA-28BRU<50 GWA-28S<50 GWA-29D<50 GWA-30BR<50 GWA-30S<50 GWA-31BRA32.8 j GWA-32BRNM GWA-32D<50 GWA-33D<50 GWA-33S43.9 jGWA-34S<50 GWA-35D118 GWA-35S106 GWA-36D183 GWA-36S177 GWA-37D29.5 j GWA-37S73 GWA-43D<50 GWA-43S92 GWA-44BR51.8 j GWA-44D40.3 j GWA-44S<100 GWA-45S<50 GWA-48BR<50 IB-1D<50 IB-3D357 IB-4BR57 MW-2DA<50 MW-4D81 MW-8D125 MW-8S302 MW-10D161 MW-10S253 MW-11S840 MW-20DR142 MW-21BR<50 MW-21D<50 MW-22DR<50 MW-23D54.1 MW-23DR<50 MW-23S35.8 j MW-24D<50 MW-24DR<50 MW-25DR<50 MW-30D<50 MW-30S<50 MW-32BR<50 MW-32D<50 MW-32S<50 MW-34BRU<50 MW-36BRU<50 MW-36S54.9 MW-38BR33.2 j MW-38D226 MW-38S113 MW-40BRU<50 MW-40S<50 MW-42S<50 U5-1D<50 U5-1S<50 U5-4D<50 U5-5D454 U5-6D182 M1 U5-7S*179 U5-7SL*180 U5-8D44.4 j U5-8S48.9 j AB-3BRUNM AS-6BRNM AS-7BRNM GWA-6DNM GWA-25DNM GWA-26DNM GWA-29BRNM GWA-30BRUNM MW-2DNM MW-22BRNM MW-42DNM U5-4BRNM U5-5BRNM U5-7DNM AS-2S996 AS-6BRA<50 CCPMW-6D<50 CCPMW-6S4.17 GWA-20BR257 GWA-29BRA<50 GWA-31BR32.8 j GWA-38S120 IB-2AL480 IB-2BRU<50 IB-2I99 IB-2S-SL*240 IB-4D44 j IB-4S-SL*390 MW-34S<50 MW-42DA<50 U5-3D124 U5-3SA136 AB-3BRUANM CCPMW-5NA GWA-6SNM MW-7DNM U5-2S-SLA*NM U5-6SNM U5-8BRNM ACTIVEASH BASIN ASH STORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BROAD RIVER B R O A D R IV E R SUCK CREEKM C C O M B S R D D O W N R I V E R D R STATE RD 1209PROSPECT CHURCH RDFOX PL STATE RD 1207WOOD RDSTATE RD 2503RIVERFRONT DR PRO SPE CT CHURCH RD STATE RD 1209MCCRAW RD STATE RD 1002WESTON DRSTATE RD 1997 STATE RD 1994 OLD FIELD RDDYSART RDLIVERETT TRLD Y S A R T R D H IN E S R D S T A T E R D 2 1 0 2STA TE RD 1995COBB RDKIRBY RD STATERD 2100 HIN ES R D STAT E R D 2 1 0 2 STATE RD 2101 BALLENGER RD DUKE POWER RD OLD US HWY 221AS T A T E R D 1 9 9 3US HWY 221 ALTBORON CONCENTRATIONS ARE RE PORT ED IN µg/L AND THE NCAC 02L STANDARD IS 700 µg/L. NM = NO VALI D RESULT S; NA = NOT ANALYZE D; < = NOT DETECTED AT A CONCENTRATIONATTAINING T HE LABORATORY METHOD REPORTING LIMIT * ASH PORE WATER W ELL. PORE WATER IS CONSIDERED WASTEWATER AND GROUNDWATERSTANDARDS ARE NOT APPICABLE. THE DETERMINATION OF CONCENTRATI ON T RENDS OVER TIME ARE GENERALIZED BASEDON AVAILABLE DATA AND W ERE NOT STATISTICALLY DETERMINED. CONCENTRATIONS REPORTED ON FIGURE REPRE SENT MOST RECENT SAMPLE RESULTSFOR EACH WELL. COLLECTION DATES DEPICT ED ON FIGURE RANGE FROM MARCH 2015 TOAUGUST 2017. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFER TO ANALYTICAL DATATABLE NOTES FOR QUALI FIER DEFINITIONS. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY. AERIAL P HOTOGRAPHY OB TAINED F ROM GOOGLE EARTH PRO ON SEPTEMBER 27, 2017.AERIAL WAS COLLECTED ON JUNE 13, 2016. DRAWI NG HAS BEEN SET WIT H A P ROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 14-70GROUNDWATER CONCENTRATIONTREND ANALYSIS -BORON IN ALL FLOW LAYERSCLIFFSIDE STEAM STATIONDUKE ENERGY CAROLINAS, LLCMOORESBORO, NORTH CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/29/2018 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\Cliffsid e \Mapdo cs\CSA_Supplement_2\Cliffside - GW Trend Analysis.mxd 500 0 500 1,000250 GRAPHIC SCAL E IN FEET CAROLINAS LEGEND ASH BASI N WASTE BOUNDARY ASH BASI N CO MPLIANCE BOUNDARY LA NDFI LL/ASH STORAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARYSURFACE WATER W IT H FLOW DIRECTION< UNKNOW N CONCENTRATION OVER TIME STABLE C ONCENTRATION OVER TIME INCREASI NG CONCENTRATION OVER TIME DECREASI NG CONCENTRATION OVER TIME &<MONITORING W ELL !(ABANDONED MONITORING W ELL NOTES: &<&< &<&< &<&<&< &<&<&<&< &<&<&< &<&<&< &<&< &<&<&< &< &<&< &<&<&< &<&<&<&<&< &<&<&< &< &<&< &<&<&<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&<&< &<&<&< &<&< &< &<&<&< &< &< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&< &<&<&< &< &<&<&<&< &<&< &<&< &<&< &<&<&< &< &< &< &<&< &<&<&<&< &<&< &<&<&< &< &< &<&< &<&< &< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&<&< &<&< &<&<&<&<&< &<&< &<&< &<&< &<&< &<&< &<&< &< &< &<&< &<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( AB-1S0.45 AB-3I0.9 AB-4D0.13 AB-6BR0.81 AS-1D0.53 AS-1SB0.72 AS-5S1.1 AS-6D0.048 GWA-4D1.7 GWA-11BRU0.15 GWA-21BRU0.42 GWA-21S0.43 GWA-37S1.9 GWA-43S0.58 MW-42S0.92 AB-4BR0.16j,D3 AB-5BR0.018 j AB-5BRU0.02 j AS-5BR1.3 AS-7D0.16 BG-2D0.25 GWA-3D0.24 GWA-22S0.092 j GWA-24BR0.021 j GWA-26S0.039 GWA-27BR0.021 j GWA-27DA0.12 j,D3 GWA-30S0.031 GWA-33D0.03 GWA-37D0.14 IB-3S0.22 MW-2DA0.014 j MW-38D0.067 j,D3 AB-1D<0.12 D3 AB-2D<0.25 D3 AB-2S<0.25D3,M 6 AB-3S*<0.12 D3 AB-4SL*<0.025 AB-5S*<0.12 D3 AB-6D0.034 AB-6S*<0.025 AS-2D0.054j,D3 AS-2S2 AS-3BRU0.035 AS-4D1.6 AS-5BRU0.05 AS-7S*<0.12D3,M1 BG-1BR0.37 BG-1D0.067 BG-1S0.2 CCPMW-1D0.076 CCPMW-1S0.26 CLMW-10.23 CLMW-20.59 CLMW-3D0.077 CLMW-3S<0.025 CLMW-5S0.9 CLMW-60.11 GWA-1BRU<0.025 GWA-2BRU<0.025 GWA-2S0.14 GWA-4S0.57 GWA-5BRU0.061 j,D3 GWA-5S0.3 P4 GWA-10D0.3 GWA-10S0.04 GWA-11S0.035 GWA-12BRU0.029 GWA-12S0.082 GWA-13BR<0.12 D3 GWA-14D1.1 GWA-14S0.71 GWA-20D0.33 GWA-20S<0.12 D3 GWA-21BR0.58 GWA-22BRU0.056 GWA-23D0.04 GWA-24D0.027 GWA-24S0.019 j GWA-25S0.045 GWA-28BR0.38 GWA-29D0.081 GWA-32D0.083 j+ GWA-33S0.6GWA-34S0.022 j GWA-35D<0.12 D3 GWA-35S1.2 GWA-36D<0.12 D3 GWA-36S<0.12 D3 GWA-43D0.084 GWA-44BR<0.12 GWA-44D0.013 j GWA-44S1.4 GWA-47D0.02 j GWA-48BR<0.12 D3 IB-1S*<0.03 IB-3D<0.25 MW-8S<0.025 MW-10D0.032 MW-10S0.51 MW-11S0.63 MW-20D<0.12 D3 MW-21BR0.019 j MW-21D0.06 MW-23S1.8 MW-24D0.041 MW-24DR0.013 j MW-30D0.024 j,M1,R1 MW-30S2.4 MW-32D0.028 MW-32S0.16 MW-34BRU<0.025 MW-36BRU0.019 j MW-36S0.023 j MW-38BR<0.12 D3 MW-38S0.31 MW-40BRU0.091 MW-40S0.55 U5-1D0.049 P4 U5-1S<0.12P4,D3 U5-2BR<0.12 D3 U5-2D0.59 U5-4S2.5 U5-5D<0.12 D3 U5-6D0.13 j,D3U5-7S*<1.5 U5-8D0.74 U5-8S<0.12 D3 GWA-25DNM MW-22BRNM AB-3SL*0.044 j AB-4S*0.035 AS-2BR0.038 AS-4SNM AS-6BRA0.21 j+ AS-6S2.2 CCPMW-2DNA CCPMW-2SNA CCPMW-3DNA CCPMW-3SNA CCPMW-6DNA CCPMW-6SNA CCPTW-1DNA CCPTW-1SNA CCPTW-2NA CLMW-4NA GWA-14BR0.014 j GWA-20BR0.6 GWA-27D0.15 GWA-28BRU0.83 P4 GWA-28S0.075 GWA-29BRA0.011 j GWA-30BR<0.12 P4,D3 GWA-31BR0.051 GWA-31BRA0.051 j+ GWA-31D0.14 GWA-32BRNM GWA-33BR<0.03 GWA-38DNM GWA-38S0.2 GWA-45S1.9 IB-1D0.033IB-2ALNA IB-2BRUNA IB-2INA IB-2S-SL*NA IB-4BRNA IB-4DNA IB-4S-SL*NA MW-4DNA MW-8D<0.12 D3 MW-20DR0.036 MW-22DR0.07 j,D3,M 1 MW-23D0.049j D3 MW-23DR0.036 MW-25DR0.13 MW-32BR0.45 MW-34S<0.03 MW-42DA0.22 U5-3D0.33 U5-3SA0.1 U5-4D0.71 U5-7 SL*<1.5 AB-3BRUNM AB-3BRUANM AS-6BRNM AS-7BRNM CCPMW-4NA CCPMW-5NA GWA-2BRNM GWA-6DNM GWA-6SNM GWA-26DNM GWA-29BRNM GWA-30BRUNM MW-2DNM MW-7DNM MW-42DNM U5-2 S-SLA*NM U5-4BRNM U5-5BRNM U5-6SNM U5-7DNM U5-8BRNM ACTIVEASH BASIN ASH STORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BROAD RIVER B R O A D R IV E R SUCK CREEKM C C O M B S R D D O W N R I V E R D R STATE RD 1209PROSPECT CHURCH RDFOX PL STATE RD 1207WOOD RDSTATE RD 2503RIVERFRONT DR PRO SPE CT CHURCH RD STATE RD 1209MCCRAW RD STATE RD 1002WESTON DRSTATE RD 1997 STATE RD 1994 OLD FIELD RDDYSART RDLIVERETT TRLD Y S A R T R D H IN E S R D S T A T E R D 2 1 0 2STA TE RD 1995COBB RDKIRBY RD STATERD 2100 HIN ES R D STAT E R D 2 1 0 2 STATE RD 2101 BALLENGER RD DUKE POWER RD OLD US HWY 221AS T A T E R D 1 9 9 3US HWY 221 ALTHEXAVALENT CHROMI UM CONCENTRATIONS ARE REPORTED IN µg/L AND NO NCAC 02LSTANDARD IS ESTABLISHED. RESULTS ARE COMPARED TO TOTAL CHROMIUM 2L STANDARDOF 10 µg/L FOR DISCUS SION PURPOSES. NM = NO VALI D RESULT S; NA = NOT ANALYZE D; < = NOT DETECTED AT A CONCENTRATIONATTAINING T HE LABORATORY METHOD REPORTING LIMIT * ASH PORE WATER W ELL. PORE WATER IS CONSIDERED WASTEWATER AND GROUNDWATERSTANDARDS ARE NOT APPICABLE. THE DETERMINATION OF CONCENTRATI ON T RENDS OVER TIME ARE GENERALIZED BASEDON AVAILABLE DATA AND W ERE NOT STATISTICALLY DETERMINED. CONCENTRATIONS REPORTED ON FIGURE REPRE SENT MOST RECENT SAMPLE RESULTSFOR EACH WELL. COLLECTION DATES DEPICT ED ON FIGURE RANGE FROM MARCH 2015 TOAUGUST 2017. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFER TO ANALYTICAL DATATABLE NOTES FOR QUALI FIER DEFINITIONS. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY. AERIAL P HOTOGRAPHY OB TAINED F ROM GOOGLE EARTH PRO ON SEPTEMBER 27, 2017.AERIAL WAS COLLECTED ON JUNE 13, 2016. DRAWI NG HAS BEEN SET WIT H A P ROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 14-71GROUNDWATER CONCENTRATIONTREND ANALYSIS -HEXAVALENT CHROMIUM IN ALL FLOW LAYERSCLIFFSIDE STEAM STATIONDUKE ENERGY CAROLINAS, LLCMOORESBORO, NORTH CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/29/2018 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\Cliffsid e \Mapdo cs\CSA_Supplement_2\Cliffside - GW Trend Analysis.mxd 500 0 500 1,000250 GRAPHIC SCAL E IN FEET CAROLINAS LEGEND ASH BASI N WASTE BOUNDARY ASH BASI N CO MPLIANCE BOUNDARY LA NDFI LL/ASH STORAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARYSURFACE WATER W IT H FLOW DIRECTION< UNKNOW N CONCENTRATION OVER TIME STABLE C ONCENTRATION OVER TIME INCREASI NG CONCENTRATION OVER TIME DECREASI NG CONCENTRATION OVER TIME &<MONITORING W ELL !(ABANDONED MONITORING W ELL NOTES: &<&< &<&< &<&<&< &<&<&<&< &<&<&< &<&<&< &<&< &<&<&< &< &<&< &<&<&< &<&<&<&<&< &<&<&< &< &<&< &<&<&<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&<&< &<&<&< &<&< &< &<&<&< &< &< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&< &<&<&< &< &<&<&<&< &<&< &<&< &<&< &<&<&< &< &< &< &<&< &<&<&<&< &<&< &<&<&< &< &< &<&< &<&< &< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&<&< &<&< &<&<&<&<&< &<&< &<&< &<&< &<&< &<&< &<&< &< &< &<&< &<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( AB-1S2.5 AB-2D1.6 AS-1SB10.4 AS-2S2 AS-3BRU0.6 AS-4D3.4 CCPMW-3D1.37 CCPTW-1S1.66 CLMW-12.6 CLMW-3D3.8 CLMW-3S2 CLMW-5S3.7 CLMW-62.2 GWA-5S1.2 GWA-10S0.46 j GWA-11BRU10.9 GWA-14S169 GWA-20S7.6 GWA-21BRU3 GWA-21S<0.5 GWA-27BR0.62 GWA-27DA7.3 GWA-31D0.81 GWA-44BR4 GWA-44D2.3 GWA-48BR1.1 IB-3D50 IB-3S17.6 MW-8D0.71 MW-10S0.69 MW-11S22.4 MW-32BR0.39 j MW-42S71.1 U5-1D0.33 j U5-1S1.7 U5-4S4.3 U5-6D18.1 U5-7 SL*12.3 j+ AB-3I1.6 AB-4BR0.22 j AB-4D0.17 j AB-5BR0.14 j AB-6D0.14 j AB-6S*0.22 j AS-1D1.3 AS-2D0.8 AS-5BRU0.34 j AS-6D0.79 AS-7S*0.37 j BG-1S0.38 j BG-2D1.34 CCPMW-1S0.28 j CCPMW-2S1.08 GWA-3D2.2 GWA-4S0.46 j GWA-14D1.6 GWA-20D0.33 j GWA-21BR0.15 j GWA-23D0.3 j GWA-30S0.12 j GWA-35D0.74 GWA-35S0.51 GWA-43D0.24 j GWA-44S3.7 GWA-47D1.7 MW-2DA4.2 MW-8S<0.5 MW-32D0.17 j MW-32S0.52 j+ MW-40BRU0.098 j MW-40S2 U5-8S0.17 j AB-1D2.4 AB-2S0.47 j AB-4S*0.27 j AB-4SL*0.36 j AB-5BRU0.12 j AB-5S*0.11 j AB-6BR0.32 j AS-5BR2.3 AS-5S1.1 AS-6S4.4 AS-7D2 BG-1BR0.82 BG-1D0.11 j CCPMW-1D0.18 j CCPMW-2D0.485 CCPMW-3S0.599 CCPMW-6D0.986 j CCPTW-1D0.656 j CCPTW-21.46 CLMW-21 GWA-1BRU0.5 j GWA-2BRU0.26 j GWA-2S0.48 j GWA-4D0.36 j GWA-5BRU2 GWA-10D0.86 GWA-11S3.2 GWA-12BRU0.74 GWA-12S0.53 GWA-13BR1.2 GWA-22S33.1 GWA-24BR0.25 j GWA-24D<0.5 GWA-24S0.32 j GWA-25S0.26 j GWA-26S0.26 j GWA-27D0.52 j+ GWA-28BR0.6 GWA-28BRU0.46 j GWA-29D0.45 j GWA-30BR0.13 j GWA-32D0.26 j+ GWA-33D0.39 j GWA-33S0.84GWA-34S0.36 j GWA-36D0.79 GWA-36S0.43 j GWA-37D4.4 GWA-37S0.78 GWA-43S1.9 IB-1S*<1 IB-4BR<0.5 MW-4D0.27 j+ MW-10D0.32 j MW-20D0.13 j MW-20DR<0.5M1,R1 MW-21BR0.31 j MW-21D0.39 j MW-22DR0.12 j MW-23DR0.12 j MW-23S3.4 MW-24D0.29 j MW-24DR0.14 j MW-25DR0.34 j MW-30D0.44 j MW-30S2.6 MW-34BRU2.2 MW-36BRU0.94 MW-36S0.41 j MW-38BR1.2 MW-38D1.3 MW-38S1.9 U5-2BR0.21 j U5-2D1.2 U5-4D8.5 U5-5D5.4 U5-7S*0.58 j+ U5-8D1.4 GWA-25DNM MW-22BRNM AB-3S*0.42 j AB-3SL*21.4 AS-2BR2.5 AS-4SNM AS-6BRA3.7 CCPMW-6S0.74 CLMW-40.24 j+ GWA-14BR0.98 GWA-20BR0.49 j GWA-22BRU0.25 j GWA-28S3.3 GWA-29BRA0.39 j GWA-31BR0.2 j GWA-31BRA0.2 j+ GWA-32BRNM GWA-33BR0.23 j+ GWA-38DNM GWA-38S1.3 GWA-45S2.9 j+ IB-1D<1IB-2AL1.6 j+ IB-2BRU0.22 j IB-2I0.56 j+ IB-2S-SL*0.37 j IB-4D0.34 j IB-4S-SL*0.25 j MW-23D0.83 MW-34S0.46 j+ MW-42DA17.6 U5-3D1.3 U5-3SA1.6 j+ AB-3BRUNM AB-3BRUANM AS-6BRNM AS-7BRNM CCPMW-4NA CCPMW-5NA GWA-2BRNM GWA-6DNM GWA-6SNM GWA-26DNM GWA-29BRNM GWA-30BRUNM MW-2DNM MW-7DNM MW-42DNM U5-2S-SLA*NM U5-4BRNM U5-5BRNM U5-6SNM U5-7DNM U5-8BRNM ACTIVEASH BASIN ASH STORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BROAD RIVER B R O A D R IV E R SUCK CREEKM C C O M B S R D D O W N R I V E R D R STATE RD 1209PROSPECT CHURCH RDFOX PL STATE RD 1207WOOD RDSTATE RD 2503RIVERFRONT DR PRO SPE CT CHURCH RD STATE RD 1209MCCRAW RD STATE RD 1002WESTON DRSTATE RD 1997 STATE RD 1994 OLD FIELD RDDYSART RDLIVERETT TRLD Y S A R T R D H IN E S R D S T A T E R D 2 1 0 2STA TE RD 1995COBB RDKIRBY RD STATERD 2100 HIN ES R D STAT E R D 2 1 0 2 STATE RD 2101 BALLENGER RD DUKE POWER RD OLD US HWY 221ASTATERD 1993US HWY 221 ALTTOTAL CHROMIUM CONCE NTRATIONS ARE REPORTED IN µg/L AND THE NCAC 02L STANDARDIS 10 µg/L. NM = NO VALI D RESULT S; NA = NOT ANALYZE D; < = NOT DETECTED AT A CONCENTRATIONATTAINING T HE LABORATORY METHOD REPORTING LIMIT * ASH PORE WATER W ELL. PORE WATER IS CONSIDERED WASTEWATER AND GROUNDWATERSTANDARDS ARE NOT APPICABLE. THE DETERMINATION OF CONCENTRATI ON T RENDS OVER TIME ARE GENERALIZED BASEDON AVAILABLE DATA AND W ERE NOT STATISTICALLY DETERMINED. CONCENTRATIONS REPORTED ON FIGURE REPRE SENT MOST RECENT SAMPLE RESULTSFOR EACH WELL. COLLECTION DATES DEPICT ED ON FIGURE RANGE FROM MARCH 2015 TOAUGUST 2017. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFER TO ANALYTICAL DATATABLE NOTES FOR QUALI FIER DEFINITIONS. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY. AERIAL P HOTOGRAPHY OB TAINED F ROM GOOGLE EARTH PRO ON SEPTEMBER 27, 2017.AERIAL WAS COLLECTED ON JUNE 13, 2016. DRAWI NG HAS BEEN SET WIT H A P ROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 14-72GROUNDWATER CONCENTRATIONTREND ANALYSIS -TOTAL CHROMIUM IN ALL FLOW LAYERSCLIFFSIDE STEAM STATIONDUKE ENERGY CAROLINAS, LLCMOORESBORO, NORTH CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/29/2018 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\Cliffsid e \Mapdo cs\CSA_Supplement_2\Cliffside - GW Trend Analysis.mxd 500 0 500 1,000250 GRAPHIC SCAL E IN FEET CAROLINAS LEGEND ASH BASI N WASTE BOUNDARY ASH BASI N CO MPLIANCE BOUNDARY LA NDFI LL/ASH STORAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARYSURFACE WATER W IT H FLOW DIRECTION< UNKNOW N CONCENTRATION OVER TIME STABLE C ONCENTRATION OVER TIME INCREASI NG CONCENTRATION OVER TIME DECREASI NG CONCENTRATION OVER TIME &<MONITORING W ELL !(ABANDONED MONITORING W ELL NOTES: &<&< &<&< &<&<&< &<&<&<&< &<&<&< &<&<&< &<&< &<&<&< &< &<&< &<&<&< &<&<&<&<&< &<&<&< &< &<&< &<&<&<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&<&< &<&<&< &<&< &< &<&<&< &< &< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&< &<&<&< &< &<&<&<&< &<&< &<&< &<&< &<&<&< &< &< &< &<&< &<&<&<&< &<&< &<&<&< &< &< &<&< &<&< &< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&<&< &<&< &<&<&<&<&< &<&< &<&< &<&< &<&< &<&< &<&< &< &< &<&< &<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( AB-1S52.5 GWA-4D85.4 GWA-10D3.5 GWA-10S10.3 GWA-30S3.2 GWA-35S18 GWA-36S196 IB-1S*7.9 IB-3S0.8 MW-2DA1.7 MW-20D1.8 MW-22DR2.6 U5-2BR30.1 U5-2D6.6 U5-7SL*133 AB-1D0.79 AB-2S36.2 AB-3I0.27 AB-3S*0.44 AB-4BR0.065 j AB-5BR2 AB-5BRU4.1 AB-5S*0.16 AS-1D0.52 BG-1D0.7 BG-1S0.88 CCPMW-1D0.35 CCPMW-1S1.1 GWA-2BRU0.087 j GWA-2S0.23 GWA-3D4 GWA-5BRU0.083 j GWA-5S3.4 GWA-11BRU0.13 GWA-20D81.3 GWA-21BRU0.72 GWA-21S10.7 GWA-23D0.73 GWA-24BR0.2 GWA-24D0.2 GWA-24S10.4 GWA-25S2.4 GWA-26S0.74 GWA-27D0.69 GWA-29D0.64 GWA-32D0.056 j+ GWA-33S19.2GWA-34S0.38 GWA-37D1.4 GWA-43D0.3 GWA-43S1.3 GWA-44S0.22 GWA-47D1.5 MW-23S0.97 MW-24D0.11 MW-24DR<0.1 MW-25DR0.81 MW-30D0.046 j MW-30S0.72 MW-32D2.3 MW-36S0.11 MW-38BR1.2 MW-38D2.7 MW-40BRU0.021 j MW-40S0.71 MW-42S0.9 U5-8S0.91 U5-7DNM AB-2D7.1 AB-4D5.5 AB-4SL*0.11 AB-6BR0.015 j AB-6D0.92 AB-6S*0.16 AS-1SB18.5 AS-2D0.43 AS-2S15.8 AS-3BRU0.13 AS-4D0.44 AS-5BR0.031 j AS-5BRU0.11 AS-5S0.25 AS-6D0.06 j AS-6S0.8 AS-7D0.32 AS-7S*2 CLMW-12.3 CLMW-212.3 CLMW-3D0.21 CLMW-3S36.7 CLMW-5S45.3 CLMW-612.4 GWA-1BRU0.46 GWA-4S68 GWA-11S1.1 GWA-12BRU2.6 GWA-12S0.053 j GWA-13BR0.071 j GWA-14D0.47 GWA-20S11.5 GWA-21BR0.84 GWA-22BRU0.051 j GWA-22S2.7 GWA-27DA0.79 GWA-28BR0.1 GWA-28BRU5.2 GWA-30BR0.032 j GWA-31D0.58 GWA-33D0.56 GWA-35D0.37 GWA-36D40.9 GWA-37S103 GWA-44BR2.3 GWA-44D0.64 GWA-48BR0.04 j IB-3D2.6 MW-8D4.9 MW-8S3.8 MW-10D2 MW-10S1.8 MW-11S1.9 MW-20DR<0.1M1,R1 MW-21BR0.056 j MW-21D0.73 MW-23D0.24 MW-23DR0.013 j MW-32BR0.025 j MW-32S0.98 MW-34BRU0.12 MW-36BRU0.15 MW-38S4 U5-1D0.32 U5-1S5.2 U5-4D0.25 U5-4S1.1 U5-5D94.1 U5-6D36U5-7S*0.11 U5-8D0.18 GWA-25DNM MW-22BRNM AB-3SL*0.23 AB-4S*0.086 j AS-2BR0.055 j AS-4SNM AS-6BRA0.23 BG-1BR0.07 j BG-2D<1 CCPMW-2DNA CCPMW-2SNA CCPMW-3DNA CCPMW-3SNA CCPMW-6DNA CCPMW-6SNA CCPTW-1DNA CCPTW-1SNA CCPTW-2NA CLMW-4<0.5 GWA-14BR0.061 j GWA-14S4.2 GWA-20BR0.32 GWA-27BR0.16 GWA-28S2.8 GWA-29BRA0.16 GWA-31BR0.15 GWA-31BRA0.15 GWA-32BRNM GWA-33BR0.021 j+ GWA-38DNM GWA-38S3.8 GWA-45S16.5 IB-1D<1IB-2AL34.3 IB-2BRU<0.5 IB-2I15.8 IB-2S-SL*0.2 j IB-4BR<0.5 IB-4D0.2 j IB-4S-SL*6.3 MW-4D<0.5 MW-34S1.7 MW-42DA0.8 U5-3D7.7 U5-3SA15.1 AB-3BRUNM AB-3BRUANM AS-6BRNM AS-7BRNM CCPMW-4NA CCPMW-5NA GWA-2BRNM GWA-6DNM GWA-6SNM GWA-26DNM GWA-29BRNM GWA-30BRUNM MW-2DNM MW-7DNM MW-42DNM U5-2S-SLA*NM U5-4BRNM U5-5BRNM U5-6SNM U5-8BRNM ACTIVEASH BASIN ASH STORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BROAD RIVER B R O A D R IV E R SUCK CREEKM C C O M B S R D D O W N R I V E R D R STATE RD 1209PROSPECT CHURCH RDFOX PL STATE RD 1207WOOD RDSTATE RD 2503RIVERFRONT DR PRO SPE CT CHURCH RD STATE RD 1209MCCRAW RD STATE RD 1002WESTON DRSTATE RD 1997 STATE RD 1994 OLD FIELD RDDYSART RDLIVERETT TRLD Y S A R T R D H IN E S R D S T A T E R D 2 1 0 2STA TE RD 1995COBB RDKIRBY RD STATERD 2100 HIN ES R D STAT E R D 2 1 0 2 STATE RD 2101 BALLENGER RD DUKE POWER RD OLD US HWY 221AS T A T E R D 1 9 9 3US HWY 221 ALTCOBALT CONCENTRATIONS ARE REPORTED IN µg/L AND THE INTERIM MAXIMUM ALLOWABLECONCENTRATION (IMAC) IS 1 µg/L. NM = NO VALI D RESULT S; NA = NOT ANALYZE D; < = NOT DETECTED AT A CONCENTRATIONATTAINING T HE LABORATORY METHOD REPORTING LIMIT * ASH PORE WATER W ELL. PORE WATER IS CONSIDERED WASTEWATER AND GROUNDWATERSTANDARDS ARE NOT APPICABLE. THE DETERMINATION OF CONCENTRATI ON T RENDS OVER TIME ARE GENERALIZED BASEDON AVAILABLE DATA AND W ERE NOT STATISTICALLY DETERMINED. CONCENTRATIONS REPORTED ON FIGURE REPRE SENT MOST RECENT SAMPLE RESULTSFOR EACH WELL. COLLECTION DATES DEPICT ED ON FIGURE RANGE FROM MARCH 2015 TOAUGUST 2017. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFER TO ANALYTICAL DATATABLE NOTES FOR QUALI FIER DEFINITIONS. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY. AERIAL P HOTOGRAPHY OB TAINED F ROM GOOGLE EARTH PRO ON SEPTEMBER 27, 2017.AERIAL WAS COLLECTED ON JUNE 13, 2016. DRAWI NG HAS BEEN SET WIT H A P ROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 14-73GROUNDWATER CONCENTRATIONTREND ANALYSIS -COBALT IN ALL FLOW LAYERSCLIFFSIDE STEAM STATIONDUKE ENERGY CAROLINAS, LLCMOORESBORO, NORTH CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/29/2018 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\Cliffsid e \Mapdo cs\CSA_Supplement_2\Cliffside - GW Trend Analysis.mxd 500 0 500 1,000250 GRAPHIC SCAL E IN FEET CAROLINAS LEGEND ASH BASI N WASTE BOUNDARY ASH BASI N CO MPLIANCE BOUNDARY LA NDFI LL/ASH STORAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARYSURFACE WATER W IT H FLOW DIRECTION< UNKNOW N CONCENTRATION OVER TIME STABLE C ONCENTRATION OVER TIME INCREASI NG CONCENTRATION OVER TIME DECREASI NG CONCENTRATION OVER TIME &<MONITORING W ELL !(ABANDONED MONITORING W ELL NOTES: &<&< &<&< &<&<&< &<&<&<&< &<&<&< &<&<&< &<&< &<&<&< &< &<&< &<&<&< &<&<&<&<&< &<&<&< &< &<&< &<&<&<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&<&< &<&<&< &<&< &< &<&<&< &< &< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&< &<&<&< &< &<&<&<&< &<&< &<&< &<&< &<&<&< &< &< &< &<&< &<&<&<&< &<&< &<&<&< &< &< &<&< &<&< &< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&<&< &<&< &<&<&<&<&< &<&< &<&< &<&< &<&< &<&< &<&< &< &< &<&< &<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( AB-1D8100 AB-1S1080 AB-2S10600 AB-3I64.5 AB-5S*1550 AB-6BR4300 AS-5S305 AS-7D245 AS-7S*42300 CCPTW-1S293 CCPTW-2532 CLMW-2147 CLMW-462200 CLMW-5S415 CLMW-6169 GWA-1BRU2210 GWA-13BR4760 GWA-20S2580 GWA-27BR1400 GWA-27DA308 GWA-28BRU8980 GWA-31D123 GWA-33D703 GWA-36D2100 GWA-36S4660 GWA-43S583 GWA-44D568 GWA-44S331 IB-1S*7490 IB-3D15200 MW-2DA483 MW-4D7700 MW-10S51.7 MW-20D8480 MW-23D1190 MW-23S470 MW-34BRU1030 U5-2BR5810 U5-4D226 U5-4S64.3 U5-8S12000 AB-3S*624 AB-4D<50 AB-5BR<50 AB-5BRU57.4AB-6D<50 AS-1D117 AS-1SB<500 D3 AS-6D<50 BG-1BR185 BG-2D76 CCPMW-2D3.36 CCPMW-2S174 CCPMW-3S62 CCPMW-6D3.43 j CCPTW-1D123 GWA-2BRU42.9 j GWA-2S112 GWA-3D106 GWA-5BRU345 GWA-14D31.3 j GWA-20D1530 GWA-23D<50 GWA-24BR<50 GWA-26S64.2 GWA-32D51.6 GWA-35D4080 GWA-35S9800 GWA-37D458 GWA-37S15900 GWA-43D<50 GWA-47D214 MW-8D33400 M1 MW-21BR<50 MW-22DR1080 MW-23DR634 MW-24D<50 MW-25DR<50 MW-30D<50 MW-30S70.4 M 1 MW-36S289 MW-38D316 MW-38S243 MW-40S458 MW-42S479 U5-1S<500 U5-2D39300 U5-6D18000 M1 MW-22BRNM AB-2D22900 AB-4BR12100 AB-6S*474 AS-2D440 AS-2S<250 D3 AS-3BRU36.1 j AS-4D45.5 j AS-5BR<50 AS-5BRU87.9 BG-1D<50 CCPMW-1D<50 CCPMW-1S<50 CCPMW-3D13.4 CLMW-152.4 CLMW-3D261 CLMW-3S38.5 j GWA-4D16600 GWA-4S19100 GWA-5S158 GWA-10D<50 GWA-10S219 GWA-11BRU520 GWA-11S435 GWA-12BRU657 GWA-12S<50 GWA-14S1290 GWA-21BR3560 GWA-21BRU36.5 j GWA-21S4250 GWA-22BRU62.1 GWA-22S837 GWA-24D<50 GWA-24S45.1 j GWA-25S84.9 GWA-27D<50 GWA-28BR5640 GWA-29D83.2 GWA-30BR7370 GWA-30S165 GWA-33S6550GWA-34S346 GWA-44BR1220 j GWA-48BR2100 IB-3S571 IB-4BR2600 MW-8S1140 MW-10D96.9 MW-20DR156 MW-21D105 MW-24DR1180 MW-32BR4490 MW-32D<50 MW-32S<50 MW-36BRU213 MW-38BR2560 MW-40BRU<50 U5-1D198 U5-5D4130 U5-7S*27300 U5-7SL*81300 U5-8D179 GWA-25DNM AB-3SL*308 j+ AB-4S*73.8 AB-4SL*106 AS-2BR164 AS-4SNM AS-6BRA78.8 AS-6S279 BG-1S<50 CCPMW-6S381 GWA-14BR<50 GWA-20BR6750 GWA-28S142 GWA-29BRA225 GWA-31BR<50 GWA-31BRA<50 GWA-32BRNM GWA-33BR424 j+ GWA-38DNM GWA-38S408 GWA-45S140 IB-1D<50IB-2AL390 IB-2BRU190 j+ IB-2I200 j+ IB-2S-SL*3900 IB-4D2900 IB-4S-SL*11000 MW-11S155 MW-34S91.9 MW-42DA259 U5-3D237 U5-3SA616 AB-3BRUNM AB-3BRUANM AS-6BRNM AS-7BRNM CCPMW-4NA CCPMW-5NA GWA-2BRNM GWA-6DNM GWA-6SNM GWA-26DNM GWA-29BRNM GWA-30BRUNM MW-2DNM MW-7DNM MW-42DNM U5-2S-SLA*NM U5-4BRNM U5-5BRNM U5-6SNM U5-7DNM U5-8BRNM ACTIVEASH BASIN ASH STORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BROAD RIVER B R O A D R IV E R SUCK CREEKM C C O M B S R D D O W N R I V E R D R STATE RD 1209PROSPECT CHURCH RDFOX PL STATE RD 1207WOOD RDSTATE RD 2503RIVERFRONT DR PRO SPE CT CHURCH RD STATE RD 1209MCCRAW RD STATE RD 1002WESTON DRSTATE RD 1997 STATE RD 1994 OLD FIELD RDDYSART RDLIVERETT TRLD Y S A R T R D H IN E S R D S T A T E R D 2 1 0 2STA TE RD 1995COBB RDKIRBY RD STATERD 2100 HIN ES R D STAT E R D 2 1 0 2 STATE RD 2101 BALLENGER RD DUKE POWER RD OLD US HWY 221AS T A T E R D 1 9 9 3US HWY 221 ALTIRON CONCENTRATIONS ARE REPORTED IN µg/L A ND THE NCAC 02L STANDARD IS 300 µg/L. NM = NO VALI D RESULT S; NA = NOT ANALYZE D; < = NOT DETECTED AT A CONCENTRATIONATTAINING T HE LABORATORY METHOD REPORTING LIMIT * ASH PORE WATER W ELL. PORE WATER IS CONSIDERED WASTEWATER AND GROUNDWATERSTANDARDS ARE NOT APPICABLE. THE DETERMINATION OF CONCENTRATI ON T RENDS OVER TIME ARE GENERALIZED BASEDON AVAILABLE DATA AND W ERE NOT STATISTICALLY DETERMINED. CONCENTRATIONS REPORTED ON FIGURE REPRE SENT MOST RECENT SAMPLE RESULTSFOR EACH WELL. COLLECTION DATES DEPICT ED ON FIGURE RANGE FROM MARCH 2015 TOAUGUST 2017. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFER TO ANALYTICAL DATATABLE NOTES FOR QUALI FIER DEFINITIONS. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY. AERIAL P HOTOGRAPHY OB TAINED F ROM GOOGLE EARTH PRO ON SEPTEMBER 27, 2017.AERIAL WAS COLLECTED ON JUNE 13, 2016. DRAWI NG HAS BEEN SET WIT H A P ROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 14-74GROUNDWATER CONCENTRATIONTREND ANALYSIS -IRON IN ALL FLOW LAYERSCLIFFSIDE STEAM STATIONDUKE ENERGY CAROLINAS, LLCMOORESBORO, NORTH CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/29/2018 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\Cliffsid e \Mapdo cs\CSA_Supplement_2\Cliffside - GW Trend Analysis.mxd 500 0 500 1,000250 GRAPHIC SCAL E IN FEET CAROLINAS LEGEND ASH BASI N WASTE BOUNDARY ASH BASI N CO MPLIANCE BOUNDARY LA NDFI LL/ASH STORAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARYSURFACE WATER W IT H FLOW DIRECTION< UNKNOW N CONCENTRATION OVER TIME STABLE C ONCENTRATION OVER TIME INCREASI NG CONCENTRATION OVER TIME DECREASI NG CONCENTRATION OVER TIME &<MONITORING W ELL !(ABANDONED MONITORING W ELL NOTES: &<&< &<&< &<&<&< &<&<&<&< &<&<&< &<&<&< &<&< &<&<&< &< &<&< &<&<&< &<&<&<&<&< &<&<&< &< &<&< &<&<&<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&<&< &<&<&< &<&< &< &<&<&< &< &< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&< &<&<&< &< &<&<&<&< &<&< &<&< &<&< &<&<&< &< &< &< &<&< &<&<&<&< &<&< &<&<&< &< &< &<&< &<&< &< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&<&< &<&< &<&<&<&<&< &<&< &<&< &<&< &<&< &<&< &<&< &< &< &<&< &<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( AB-1S5350 AB-5S*434 AS-1D311 AS-2D508 CCPMW-6D146 CCPTW-213.1 CLMW-21130 CLMW-3S1800 CLMW-5S3570 GWA-4D4620 GWA-4S2100 GWA-10D170 GWA-10S1410 GWA-22BRU21 GWA-30S177 MW-2DA1100 MW-4D230 MW-8D5360 M1 MW-8S3740 MW-21BR26.4 MW-23DR51.9 U5-1D174 U5-2BR6440 U5-4S24.4 U5-7S*845 AB-2S9590 AB-3I132 AB-3S*356 AB-4S*3.7 j AB-5BR132 AB-5BRU231 AB-6BR63.2 AB-6D36.2 AS-1SB1070 AS-2S10600 AS-6D7.7 AS-6S161 BG-1BR18.7 BG-1D16.1 BG-1S14.9 CCPTW-1D13.7 CLMW-3D34 CLMW-6178 GWA-1BRU87.4 GWA-2S199 GWA-5BRU217 GWA-5S615 GWA-11S2130 GWA-12BRU43.4 GWA-20S1570 GWA-21BR391 GWA-24BR5 j GWA-24D6.7 GWA-24S75.4 GWA-25S32.7 GWA-26S17.4 GWA-27D1430 GWA-27DA1240 GWA-29D8.2 GWA-30BR67 GWA-31D23 GWA-32D8 GWA-36S2500 GWA-37D65.3 GWA-43D3.4 j GWA-43S32.6 GWA-44D245 GWA-44S14 GWA-47D288 GWA-48BR61.6 MW-11S2140 MW-20D346 MW-23S73.2MW-30S14.2 MW-32D14.4 MW-36S104 MW-38BR256 MW-38D547 MW-38S397 MW-40BRU25.5 MW-40S26.2 MW-42S19.5 U5-1S<50 U5-2D1180 U5-5D4930 U5-8D26.5 U5-8S3660 U5-7DNM AB-1D2460 AB-2D3580 AB-4BR173 AB-4D154 AB-4SL*11.3 AB-6S*81.4 AS-3BRU5.7 AS-4D25.5 AS-5BR6.4 AS-5BRU16.9 AS-5S21.6 AS-7D1880 AS-7S*15400 BG-2D7 CCPMW-1D7.6 CCPMW-1S15.8 CCPMW-2D0.532 CCPMW-2S12.7 CCPMW-3D6.61 CCPMW-3S53.6 CCPTW-1S14.3 CLMW-1206 CLMW-4480GWA-2BRU4.7 j GWA-3D1470 GWA-11BRU857 GWA-12S2.5 j GWA-13BR207 GWA-14D12.2 GWA-14S92.3 GWA-20D5990 GWA-21BRU132 GWA-21S279 GWA-22S52.3 GWA-23D9.2 GWA-27BR50.3 GWA-28BR95.4 GWA-28BRU60.6 GWA-33D122 GWA-33S634GWA-34S70.9 GWA-35D112 GWA-35S1660 GWA-36D4370 GWA-37S8700 GWA-44BR602 j IB-1S*2420 IB-3D6060 IB-3S20800 IB-4BR170 MW-10D85.4 MW-10S189 MW-20DR561 MW-21D9.8 MW-22DR89.5 MW-23D831 MW-24D4.6 j MW-24DR51 MW-25DR18.4 MW-30D6.2 MW-32BR28.8 MW-32S44.9 MW-34BRU39 MW-36BRU51 U5-4D11.1 U5-6D1820 M1 U5-7 SL*2860 MW-22BRNM AB-3SL*96.8 AS-2BR239 AS-4SNM AS-6BRA12.4 CCPMW-6S795 GWA-14BR118 GWA-20BR467 GWA-28S44.9 GWA-29BRA101 GWA-31BR4.1 j GWA-31BRA4.1 j GWA-32BRNM GWA-33BR200 GWA-38DNM GWA-38S452 GWA-45S480 IB-1D6IB-2AL1300 IB-2BRU99 IB-2I1500 IB-2S-SL*1000 IB-4D160 IB-4S-SL*870 MW-34S26.8 MW-42DA65.8 U5-3D1190 U5-3SA1280 AB-3BRUNM AB-3BRUANM AS-6BRNM AS-7BRNM CCPMW-4NA CCPMW-5NA GWA-2BRNM GWA-6DNM GWA-6SNM GWA-25DNM GWA-26DNM GWA-29BRNM GWA-30BRUNM MW-2DNM MW-7DNM MW-42DNM U5-2S-SLA*NM U5-4BRNM U5-5BRNM U5-6SNM U5-8BRNM ACTIVEASH BASIN ASH STORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BROAD RIVER B R O A D R IV E R SUCK CREEKM C C O M B S R D D O W N R I V E R D R STATE RD 1209PROSPECT CHURCH RDFOX PL STATE RD 1207WOOD RDSTATE RD 2503RIVERFRONT DR PRO SPE CT CHURCH RD STATE RD 1209MCCRAW RD STATE RD 1002WESTON DRSTATE RD 1997 STATE RD 1994 OLD FIELD RDDYSART RDLIVERETT TRLD Y S A R T R D H IN E S R D S T A T E R D 2 1 0 2STA TE RD 1995COBB RDKIRBY RD STATERD 2100 HIN ES R D STAT E R D 2 1 0 2 STATE RD 2101 BALLENGER RD DUKE POWER RD OLD US HWY 221ASTATERD 1993US HWY 221 ALTMANGANESE CONCENTRAT IONS ARE REPORTED IN µg/L AND THE NCAC 02L STANDARD IS 50µg/L. NM = NO VALI D RESULT S; NA = NOT ANALYZE D; < = NOT DETECTED AT A CONCENTRATIONATTAINING T HE LABORATORY METHOD REPORTING LIMIT * ASH PORE WATER W ELL. PORE WATER IS CONSIDERED WASTEWATER AND GROUNDWATERSTANDARDS ARE NOT APPICABLE. THE DETERMINATION OF CONCENTRATI ON T RENDS OVER TIME ARE GENERALIZED BASEDON AVAILABLE DATA AND W ERE NOT STATISTICALLY DETERMINED. CONCENTRATIONS REPORTED ON FIGURE REPRE SENT MOST RECENT SAMPLE RESULTSFOR EACH WELL. COLLECTION DATES DEPICT ED ON FIGURE RANGE FROM MARCH 2015 TOAUGUST 2017. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFER TO ANALYTICAL DATATABLE NOTES FOR QUALI FIER DEFINITIONS. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY. AERIAL P HOTOGRAPHY OB TAINED F ROM GOOGLE EARTH PRO ON SEPTEMBER 27, 2017.AERIAL WAS COLLECTED ON JUNE 13, 2016. DRAWI NG HAS BEEN SET WIT H A P ROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 14-75GROUNDWATER CONCENTRATIONTREND ANALYSIS -MANGANESE IN ALL FLOW LAYERSCLIFFSIDE STEAM STATIONDUKE ENERGY CAROLINAS, LLCMOORESBORO, NORTH CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/29/2018 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\Cliffsid e \Mapdo cs\CSA_Supplement_2\Cliffside - GW Trend Analysis.mxd 500 0 500 1,000250 GRAPHIC SCAL E IN FEET CAROLINAS LEGEND ASH BASI N WASTE BOUNDARY ASH BASI N CO MPLIANCE BOUNDARY LA NDFI LL/ASH STORAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARYSURFACE WATER W IT H FLOW DIRECTION< UNKNOW N CONCENTRATION OVER TIME STABLE C ONCENTRATION OVER TIME INCREASI NG CONCENTRATION OVER TIME DECREASI NG CONCENTRATION OVER TIME &<MONITORING W ELL !(ABANDONED MONITORING W ELL NOTES: &<&< &<&< &<&<&< &<&<&<&< &<&<&< &<&<&< &<&< &<&<&< &< &<&< &<&<&< &<&<&<&<&< &<&<&< &< &<&< &<&<&<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&<&< &<&<&< &<&< &< &<&<&< &< &< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&< &<&<&< &< &<&<&<&< &<&< &<&< &<&< &<&<&< &< &< &< &<&< &<&<&<&< &<&< &<&<&< &< &< &<&< &<&< &< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&<&< &<&< &<&<&<&<&< &<&< &<&< &<&< &<&< &<&< &<&< &< &< &<&< &<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !(GWA-31D545 U5-2BR367 AS-4D55.9 AS-5BR54.7 GWA-10D150 GWA-10S217 GWA-11S532 MW-20D154 U5-2D1280 AB-1D213 AB-1S23.1 AB-2D283 AB-2S31 AB-3I AB-3S*60 AB-4BR79.2 AB-4D8.7 AB-4S*998 AB-4SL*1760 AB-5BR29.9 AB-5BRU51.8 AB-5S*2650 AB-6BR104 AB-6D29.9 AS-1D188 AS-1SB102 AS-2D434 AS-2S214 AS-3BRU21.6 AS-5BRU23.2 AS-5S7.1 AS-6D28 AS-6S11.6 AS-7S*3070 BG-1BR125 BG-1D30.7 BG-1S15.4 BG-2D35 CCPMW-1D21.6 CCPMW-1SNA CLMW-1978 CLMW-282.1 CLMW-3D299 CLMW-3S37.5 CLMW-5S23 CLMW-617 GWA-1BRU45.8 GWA-2BRU104 GWA-3D248 GWA-4D472 GWA-4S622 GWA-5BRU220 GWA-5S163 GWA-11BRU326 GWA-12BRU45.7 M 1 GWA-12S16.2 GWA-13BR137 GWA-14D263 GWA-14S151 GWA-20D488 GWA-20S96 GWA-21BR260 GWA-21BRU145 GWA-21S121 GWA-22BRU133 GWA-22S66.4 GWA-23D16.8 GWA-24BR29.4 GWA-24D22.7 GWA-24S14.2 GWA-25S23.1 GWA-26S4.2 j GWA-27BR187 GWA-27D116 GWA-27DA110 GWA-28BR92.6 GWA-28BRU47.3 GWA-29D38.6 GWA-30BR58 GWA-30S26.1 GWA-32D8.9 GWA-33D172 GWA-33S162GWA-34S13.6 GWA-35D106 GWA-35S49.5 GWA-36D339 GWA-36S389 GWA-37D569 GWA-37S74.1 GWA-43D148 GWA-43S157 GWA-44BR327 j GWA-44D275 GWA-44S177 GWA-47D85.9 GWA-48BR63.8 IB-3D199 IB-3S24 IB-4BR130 MW-2DA96 MW-8D106 MW-8S171 MW-10D38.3 MW-10S59.2 MW-11S38.3 MW-20DR312 MW-21BR57.6 MW-21D18.8 MW-22DR30.9 MW-23D359 MW-23DR98.4 MW-23S192 MW-24D23.7 MW-24DR74.2 MW-30D68 MW-30S12.1 M 1 MW-32BR56.5 MW-32D40.7 MW-32S36.3 MW-34BRU58.9 MW-36BRU76.1 MW-36S71.1 MW-38BR406 MW-38D220 MW-38S81.6 MW-40BRU163 MW-40S MW-42S40.7 U5-1D106 U5-1S108 U5-4D45.1 U5-4S10.6 U5-5D266 U5-6D476 M 1 U5-7S*1000 U5-7SL*1120 U5-8D41.3 U5-8S203 GWA-25DNM MW-22BRNM AB-3SL*1040 AB-6S*1210 AS-2BR273 AS-4SNM AS-6BRA70.2 AS-7D311 CCPMW-2DNA CCPMW-2SNA CCPMW-3DNA CCPMW-3SNA CCPMW-6DNA CCPMW-6SNA CCPTW-1DNA CCPTW-1SNA CCPTW-2NA CLMW-4120 GWA-2S120 GWA-14BR115 GWA-20BR656 GWA-28S7 GWA-29BRA346 GWA-31BR87.39999 GWA-31BRA87.4 GWA-32BRNM GWA-33BR188 GWA-38DNM GWA-38S106 GWA-45S50 IB-1D128 IB-1S*946 IB-2AL430 IB-2BRU190 IB-2I270 IB-2S-SL*980 IB-4D120 IB-4S-SL*2200 MW-4D190 MW-25DR87.7 MW-34S9.5 MW-42DA U5-3D69.1 U5-3SA74.4 AB-3BRUNM AB-3BRUANM AS-6BRNM AS-7BRNM CCPMW-4NA CCPMW-5NA GWA-2BRNM GWA-6DNM GWA-6SNM GWA-26DNM GWA-29BRNM GWA-30BRUNM MW-2DNM MW-7DNM MW-42DNM U5-2S-SLA*NM U5-4BRNM U5-5BRNM U5-6SNM U5-7DNM U5-8BRNM ACTIVEASH BASIN ASH STORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BROAD RIVER B R O A D R IV E R SUCK CREEKM C C O M B S R D D O W N R I V E R D R STATE RD 1209PROSPECT CHURCH RDFOX PL STATE RD 1207WOOD RDSTATE RD 2503RIVERFRONT DR PRO SPE CT CHURCH RD STATE RD 1209MCCRAW RD STATE RD 1002WESTON DRSTATE RD 1997 STATE RD 1994 OLD FIELD RDDYSART RDLIVERETT TRLD Y S A R T R D H IN E S R D S T A T E R D 2 1 0 2STA TE RD 1995COBB RDKIRBY RD STATERD 2100 HIN ES R D STAT E R D 2 1 0 2 STATE RD 2101 BALLENGER RD DUKE POWER RD OLD US HWY 221AS T A T E R D 1 9 9 3US HWY 221 ALTSTRONTIUM CONCENT RATIONS ARE REPORTED IN µg/L AND NO NCAC 02L STANDARD ISESTABLISHED. NM = NO VALI D RESULT S; NA = NOT ANALYZE D; < = NOT DETECTED AT A CONCENTRATIONATTAINING T HE LABORATORY METHOD REPORTING LIMIT * ASH PORE WATER W ELL. PORE WATER IS CONSIDERED WASTEWATER AND GROUNDWATERSTANDARDS ARE NOT APPICABLE. THE DETERMINATION OF CONCENTRATI ON T RENDS OVER TIME ARE GENERALIZED BASEDON AVAILABLE DATA AND W ERE NOT STATISTICALLY DETERMINED. CONCENTRATIONS REPORTED ON FIGURE REPRE SENT MOST RECENT SAMPLE RESULTSFOR EACH WELL. COLLECTION DATES DEPICT ED ON FIGURE RANGE FROM MARCH 2015 TOAUGUST 2017. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFER TO ANALYTICAL DATATABLE NOTES FOR QUALI FIER DEFINITIONS. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY. AERIAL P HOTOGRAPHY OB TAINED F ROM GOOGLE EARTH PRO ON SEPTEMBER 27, 2017.AERIAL WAS COLLECTED ON JUNE 13, 2016. DRAWI NG HAS BEEN SET WIT H A P ROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 14-76GROUNDWATER CONCENTRATIONTREND ANALYSIS -STRONTIUM IN A LL FLOW LAYERSCLIFFSIDE STEAM STATIONDUKE ENERGY CAROLINAS, LLCMOORESBORO, NORTH CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/29/2018 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\Cliffsid e \Mapdo cs\CSA_Supplement_2\Cliffside - GW Trend Analysis.mxd 500 0 500 1,000250 GRAPHIC SCAL E IN FEET CAROLINAS LEGEND ASH BASI N WASTE BOUNDARY ASH BASI N CO MPLIANCE BOUNDARY LA NDFI LL/ASH STORAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARYSURFACE WATER W IT H FLOW DIRECTION< UNKNOW N CONCENTRATION OVER TIME STABLE C ONCENTRATION OVER TIME INCREASI NG CONCENTRATION OVER TIME DECREASI NG CONCENTRATION OVER TIME &<MONITORING W ELL !(ABANDONED MONITORING W ELL NOTES: &<&< &<&< &<&<&< &<&<&<&< &<&<&< &<&<&< &<&< &<&<&< &< &<&< &<&<&< &<&<&<&<&< &<&<&< &< &<&< &<&<&<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&<&< &<&<&< &<&< &< &<&<&< &< &< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&< &<&<&< &< &<&<&<&< &<&< &<&< &<&< &<&<&< &< &< &< &<&< &<&<&<&< &<&< &<&<&< &< &< &<&< &<&< &< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&<&< &<&< &<&<&<&<&< &<&< &<&< &<&< &<&< &<&< &<&< &< &< &<&< &<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( AB-6BR5.5 AS-1D55.5 AS-7D143 AS-7S*491CLMW-2207 CLMW-3D238 CLMW-3S249 M 6 GWA-4D258 GWA-4S221 GWA-13BR80 GWA-20D153 GWA-27D86.4 GWA-31D459 GWA-33D99 GWA-35S45.4 GWA-36D336 GWA-44S445 MW-4D16.8 MW-8S65.1 MW-11S38.7 MW-20D24 MW-30D15.3 MW-40BRU92.7 MW-40S121 U5-2BR16.7 U5-7S*34.7 AB-1D26.9 AB-1S2.6 AB-3I3.6 AB-3S*344 M6 AB-4S*86.7 AB-5BR5.6 AS-4D2.8 AS-5BRU<1 AS-6S0.85 j BG-1D1.9 CCPMW-6D0.758 GWA-5BRU58.9 GWA-10S135 GWA-11S120 GWA-12S10.1 GWA-22S0.84 j GWA-24BR6.9 GWA-24S3 GWA-35D63.4 M1 GWA-37S75.4 MW-36BRU7.6 MW-36S21.2 MW-38D251 U5-1D12.6 U5-2D78.6 U5-4S12 U5-5D246 U5-6D186 U5-7SL*258 U5-8S17.9 AB-2D41 AB-2S17.2 AB-4BR4.3 AB-4D<1 AB-4SL*12.8 AB-5BRU5.1 AB-5S*130 AB-6D0.89 j AB-6S*155 AS-1SB383 M6 AS-2D208 AS-2S361 AS-3BRU<1 AS-5BR9.8 AS-5S<1 AS-6D0.96 j BG-1BR16.9 BG-1S<1 BG-2D7.8 CCPMW-1D1.4 CCPMW-1S<1 CCPMW-2D4.7 CCPMW-2S0.382 CCPMW-3D21.6 CCPMW-3S7.1 CCPTW-1D88.5 CCPTW-1S0.385 CCPTW-22.17 CLMW-1142 CLMW-5S3.4 CLMW-6<1 GWA-1BRU8 GWA-2BRU63 GWA-2S64.2 M1 GWA-3D189 GWA-5S561 GWA-10D19.4 GWA-11BRU134 GWA-12BRU9.4 GWA-14D225 GWA-14S143 GWA-20S83.9 GWA-21BR0.6 j GWA-21BRU72.8 GWA-21S87.5 GWA-22BRU4.8 GWA-23D0.55 j GWA-24D2.8 GWA-25S<1 GWA-26S<1 GWA-27BR7.9 GWA-27DA68.8 GWA-28BR6.2 GWA-28BRU12.4 GWA-29D8.7 GWA-30BR14.3 M1,R1 GWA-30S0.9 j GWA-32D1.9 GWA-33S123GWA-34S1 GWA-37D322 GWA-43D65.4 GWA-43S38.7 GWA-44BR332 GWA-44D324 GWA-47D<1 GWA-48BR10.9 IB-1S*433 IB-3D81.3 IB-3S250 IB-4BR39.9 MW-2DA16.1 MW-8D51.8 MW-10D14.2 MW-10S62.4 MW-20DR<1 MW-21BR6.8 MW-21D0.76 j MW-22DR12.8 MW-23D402 MW-23DR19.8 MW-23S159 MW-24D<1 MW-24DR10.7 MW-25DR5.5 MW-30S<1 MW-32BR16.3 MW-32D9 MW-32S0.83 j MW-34BRU11 MW-38BR311 MW-38S161 MW-42S8.4 U5-1S17.2 U5-4D32 U5-8D2.4 MW-22BRNM AB-3SL*72 AS-2BR85.1 AS-4SNM AS-6BRA4.9 CCPMW-6S7.83 CLMW-4<1 GWA-14BR18.5 GWA-20BR66.7 GWA-28S2.2 GWA-29BRA13.9 GWA-31BR210 GWA-31BRA210 GWA-32BRNM GWA-33BR41.4 GWA-36S189 GWA-38DNM GWA-38S171 GWA-45S43.6 IB-1D43.6IB-2AL84.9 IB-2BRU31.6 IB-2I51.5 IB-2S-SL*269 IB-4D33.7 IB-4S-SL*153 MW-34S<1 MW-42DA92.7 U5-3D51.1 U5-3SA55.5 AB-3BRUNM AB-3BRUANM AS-6BRNM AS-7BRNM CCPMW-4NA CCPMW-5NA GWA-2BRNM GWA-6DNM GWA-6SNM GWA-25DNM GWA-26DNM GWA-29BRNM GWA-30BRUNM MW-2DNM MW-7DNM MW-42DNM U5-2S-SLA*NM U5-4BRNM U5-5BRNM U5-6SNM U5-7DNM U5-8BRNM ACTIVEASH BASIN ASH STORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BROAD RIVER B R O A D R IV E R SUCK CREEKM C C O M B S R D D O W N R I V E R D R STATE RD 1209PROSPECT CHURCH RDFOX PL STATE RD 1207WOOD RDSTATE RD 2503RIVERFRONT DR PRO SPE CT CHURCH RD STATE RD 1209MCCRAW RD STATE RD 1002WESTON DRSTATE RD 1997 STATE RD 1994 OLD FIELD RDDYSART RDLIVERETT TRLD Y S A R T R D H IN E S R D S T A T E R D 2 1 0 2STA TE RD 1995COBB RDKIRBY RD STATERD 2100 HIN ES R D STAT E R D 2 1 0 2 STATE RD 2101 BALLENGER RD DUKE POWER RD OLD US HWY 221ASTATERD 1993US HWY 221 ALTSULFATE CONCENT RATIONS ARE REPORTED IN mg/L AND THE NCAC 02L STANDARD IS 250mg/L. NM = NO VALI D RESULT S; NA = NOT ANALYZE D; < = NOT DETECTED AT A CONCENTRATIONATTAINING T HE LABORATORY METHOD REPORTING LIMIT * ASH PORE WATER W ELL. PORE WATER IS CONSIDERED WASTEWATER AND GROUNDWATERSTANDARDS ARE NOT APPICABLE. THE DETERMINATION OF CONCENTRATI ON T RENDS OVER TIME ARE GENERALIZED BASEDON AVAILABLE DATA AND W ERE NOT STATISTICALLY DETERMINED. CONCENTRATIONS REPORTED ON FIGURE REPRE SENT MOST RECENT SAMPLE RESULTSFOR EACH WELL. COLLECTION DATES DEPICT ED ON FIGURE RANGE FROM MARCH 2015 TOAUGUST 2017. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFER TO ANALYTICAL DATATABLE NOTES FOR QUALI FIER DEFINITIONS. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY. AERIAL P HOTOGRAPHY OB TAINED F ROM GOOGLE EARTH PRO ON SEPTEMBER 27, 2017.AERIAL WAS COLLECTED ON JUNE 13, 2016. DRAWI NG HAS BEEN SET WIT H A P ROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 14-77GROUNDWATER CONCENTRATIONTREND ANALYSIS -SULFATE IN ALL FLOW LAYERSCLIFFSIDE STEAM STATIONDUKE ENERGY CAROLINAS, LLCMOORESBORO, NORTH CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/29/2018 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\Cliffsid e \Mapdo cs\CSA_Supplement_2\Cliffside - GW Trend Analysis.mxd 500 0 500 1,000250 GRAPHIC SCAL E IN FEET CAROLINAS LEGEND ASH BASI N WASTE BOUNDARY ASH BASI N CO MPLIANCE BOUNDARY LA NDFI LL/ASH STORAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARYSURFACE WATER W IT H FLOW DIRECTION< UNKNOW N CONCENTRATION OVER TIME STABLE C ONCENTRATION OVER TIME INCREASI NG CONCENTRATION OVER TIME DECREASI NG CONCENTRATION OVER TIME &<MONITORING W ELL !(ABANDONED MONITORING W ELL NOTES: &<&< &<&< &<&<&< &<&<&<&< &<&<&< &<&<&< &<&< &<&<&< &< &<&< &<&<&< &<&<&<&<&< &<&<&< &< &<&< &<&<&<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&<&< &<&<&< &<&< &< &<&<&< &< &< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&< &<&<&< &< &<&<&<&< &<&< &<&< &<&< &<&<&< &< &< &< &<&< &<&<&<&< &<&< &<&<&< &< &< &<&< &<&< &< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&<&< &<&< &<&<&<&<&< &<&< &<&< &<&< &<&< &<&< &<&< &< &< &<&< &<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( AB-1S63 AS-7D279 BG-1BR156 CLMW-2398 CLMW-3D425 CLMW-3S418 GWA-13BR270 GWA-31D855 GWA-33D260 GWA-44S696 MW-4D186 MW-40BRU281 U5-2BR178 AB-1D220 AB-2S114 AB-3I64 AB-4BR80 AB-4S*294 AB-5BR<25 AB-5BRU<25 AS-2S627 AS-4D69 AS-5BR96 AS-6S<25 BG-1S<25 CCPMW-2D49 CCPMW-3S40 CCPTW-1D219 GWA-11S278 GWA-22BRU110 GWA-24D26 GWA-24S27 GWA-28BR88 GWA-28BRU70 GWA-35D202 GWA-36D537 MW-10S113 MW-11S194 MW-20D188 MW-22DR43 MW-32D45 MW-38D426 MW-38S279 U5-1S94 U5-2D330 U5-5D435 U5-7 SL*<25 AB-2D221 AB-4D<25 AB-4SL*156 AB-6BR85 AB-6D47 AB-6S*484 AS-1D145 AS-2D439 AS-3BRU<25 AS-5BRU26 AS-5S<25 AS-6D28 AS-7S*942 BG-1D30 CCPMW-1D30 CCPMW-1S<25 CCPMW-2S24 j CCPMW-3D51 CCPMW-6D56 CCPTW-1S33 CCPTW-246 CLMW-1345 CLMW-5S37 CLMW-636 GWA-1BRU110 GWA-2BRU240 GWA-2S175 GWA-3D346 GWA-4D419 GWA-4S332 GWA-5BRU473 GWA-5S891 GWA-10D113 GWA-10S253 GWA-11BRU336 GWA-12BRU72 GWA-12S70 GWA-14S358 GWA-20D331 GWA-20S319 GWA-21BR245 GWA-21BRU177 GWA-21S153 GWA-22S106 GWA-23D<25 GWA-24BR41 GWA-25S<25 GWA-26S<25 GWA-27BR194 GWA-29D69 GWA-30BR87 GWA-30S39 GWA-31BRA482 GWA-33S207GWA-34S<25 GWA-35S118 GWA-36S274 GWA-37D526 GWA-37S185 GWA-43D237 GWA-43S78 GWA-44BR653 GWA-44D598 GWA-47D86 GWA-48BR74 IB-1S*864 IB-3D244 IB-3S330 IB-4BR198 MW-2DA128 MW-8D190 MW-8S338 MW-10D34 MW-20DR292 MW-21BR90 MW-21D<25 MW-23D710 MW-23DR131 D6 MW-23S243 MW-24D32 MW-24DR109 MW-25DR109 MW-30D98 MW-30S<25 MW-32BR81 MW-32S51 MW-34BRU104 MW-36BRU114 MW-36S64 D6 MW-38BR575 MW-40S221 MW-42S64 U5-1D198 U5-4D133 U5-4S50 U5-6D335U5-7S*193 U5-8D59 U5-8S235 MW-22BRNM AB-3S*767 AB-3SL*232 AB-5S*422 AS-1SB607 AS-2BR273 AS-4SNM AS-6BRA92 BG-2D67 CCPMW-6S52 CLMW-4152 GWA-14BR140 GWA-14D447 GWA-20BR271 GWA-27D288 j+ GWA-27DA250 GWA-28S85 GWA-29BRA143 GWA-31BR482 GWA-32BRNM GWA-32D<25 GWA-33BR212 GWA-38DNM GWA-38S291 GWA-45S81 IB-1D150IB-2AL314 IB-2BRU171 IB-2I466 IB-2S-SL*596 IB-4D173 IB-4S-SL*527 MW-34S<25 MW-42DA274 U5-3D88 U5-3SA137 AB-3BRUNM AB-3BRUANM AS-6BRNM AS-7BRNM CCPMW-4NA CCPMW-5NA GWA-2BRNM GWA-6DNM GWA-6SNM GWA-25DNM GWA-26DNM GWA-29BRNM GWA-30BRUNM MW-2DNM MW-7DNM MW-42DNM U5-2S-SLA*NM U5-4BRNM U5-5BRNM U5-6SNM U5-7DNM U5-8BRNM ACTIVEASH BASIN ASH STORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BROAD RIVER B R O A D R IV E R SUCK CREEKM C C O M B S R D D O W N R I V E R D R STATE RD 1209PROSPECT CHURCH RDFOX PL STATE RD 1207WOOD RDSTATE RD 2503RIVERFRONT DR PRO SPE CT CHURCH RD STATE RD 1209MCCRAW RD STATE RD 1002WESTON DRSTATE RD 1997 STATE RD 1994 OLD FIELD RDDYSART RDLIVERETT TRLD Y S A R T R D H IN E S R D S T A T E R D 2 1 0 2STA TE RD 1995COBB RDKIRBY RD STATERD 2100 HIN ES R D STAT E R D 2 1 0 2 STATE RD 2101 BALLENGER RD DUKE POWER RD OLD US HWY 221ASTATERD 1993US HWY 221 ALTTOTAL DISSOLVED SOLIDS (T DS) CONCENTRATIONS ARE REPORTED IN mg/L AND THE NCAC02L STANDARD I S 500 mg/L. NM = NO VALI D RESULT S; NA = NOT ANALYZE D; < = NOT DETECTED AT A CONCENTRATIONATTAINING T HE LABORATORY METHOD REPORTING LIMIT * ASH PORE WATER W ELL. PORE WATER IS CONSIDERED WASTEWATER AND GROUNDWATERSTANDARDS ARE NOT APPICABLE. THE DETERMINATION OF CONCENTRATI ON T RENDS OVER TIME ARE GENERALIZED BASEDON AVAILABLE DATA AND W ERE NOT STATISTICALLY DETERMINED. CONCENTRATIONS REPORTED ON FIGURE REPRE SENT MOST RECENT SAMPLE RESULTSFOR EACH WELL. COLLECTION DATES DEPICT ED ON FIGURE RANGE FROM MARCH 2015 TOAUGUST 2017. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFER TO ANALYTICAL DATATABLE NOTES FOR QUALI FIER DEFINITIONS. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY. AERIAL P HOTOGRAPHY OB TAINED F ROM GOOGLE EARTH PRO ON SEPTEMBER 27, 2017.AERIAL WAS COLLECTED ON JUNE 13, 2016. DRAWI NG HAS BEEN SET WIT H A P ROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 14-78GROUNDWATER CONCENTRATIONTREND ANALYSIS -TOTAL DISSOLVED SOLIDS IN ALL FLOW LAYERSCLIFFSIDE STEAM STATIONDUKE ENERGY CAROLINAS, LLCMOORESBORO, NORTH CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/29/2018 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\Cliffsid e \Mapdo cs\CSA_Supplement_2\Cliffside - GW Trend Analysis.mxd 500 0 500 1,000250 GRAPHIC SCAL E IN FEET CAROLINAS LEGEND ASH BASI N WASTE BOUNDARY ASH BASI N CO MPLIANCE BOUNDARY LA NDFI LL/ASH STORAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARYSURFACE WATER W IT H FLOW DIRECTION< UNKNOW N CONCENTRATION OVER TIME STABLE C ONCENTRATION OVER TIME INCREASI NG CONCENTRATION OVER TIME DECREASI NG CONCENTRATION OVER TIME &<MONITORING W ELL !(ABANDONED MONITORING W ELL NOTES: &<&< &<&< &<&<&< &<&<&<&< &<&<&< &<&<&< &<&< &<&<&< &< &<&< &<&<&< &<&<&<&<&< &<&<&< &< &<&< &<&<&<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&<&< &<&<&< &<&< &< &<&<&< &< &< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&< &<&<&< &< &<&<&<&< &<&< &<&< &<&< &<&<&< &< &< &< &<&< &<&<&<&< &<&< &<&<&< &< &< &<&< &<&< &< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&<&< &<&< &<&<&<&<&< &<&< &<&< &<&< &<&< &<&< &<&< &< &< &<&< &<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( AB-1S0.44 AB-6S*0.19 GWA-21S0.12 GWA-35S0.15 U5-7SL*<1 AB-3I0.41 AB-5S*0.063 j CLMW-10.47 CLMW-3D0.042 j GWA-3D0.075 j GWA-14S0.12 GWA-20S0.076 j,B MW-38D0.015 j MW-38S0.025 j MW-40S0.049 j AB-1D<0.1 AB-2D<0.1 AB-2S0.39 AB-3S*0.4 AB-4BR<0.1 AB-4D0.065 j AB-4S*0.084 j AB-4SL*0.092 j AB-5BR0.045 j AB-5BRU0.13 AB-6BR0.027 j AB-6D0.067 j AS-1D0.22 AS-1SB0.59 AS-2D<0.1 AS-2S0.38 AS-3BRU0.036 j AS-4D<0.1 AS-5BR<0.1 AS-5BRU<0.1 AS-5S0.074 j,B AS-6D<0.1 AS-6S0.08 j AS-7D0.072 j AS-7S*0.61 BG-1BR<0.1 BG-1D0.057 j BG-1S0.079 j BG-2D<0.2 CCPMW-1D<0.1 CCPMW-1S<0.1 CLMW-20.4 CLMW-3S0.33 CLMW-5S0.31 CLMW-60.039 j GWA-1BRU<0.1 GWA-2BRU<0.1 GWA-2S0.13 GWA-4D<0.1 GWA-4S1.9 GWA-5BRU<0.1 GWA-5S0.3 GWA-10D<0.1 GWA-10S0.21 GWA-11BRU<0.1 GWA-11S0.038 j GWA-12BRU<0.1 GWA-12S<0.1 GWA-13BR<0.1 GWA-14D0.039 j GWA-20D0.57 GWA-21BR<0.1 GWA-21BRU0.16 GWA-22BRU<0.1 GWA-22S0.024 j GWA-23D<0.1 GWA-24BR<0.1 GWA-24D0.028 j GWA-24S0.07 j GWA-25S0.031 j GWA-26S0.051 j GWA-27BR0.027 j,B GWA-27D0.11 GWA-27DA0.13 B GWA-28BR<0.1 GWA-28BRU<0.1 GWA-29D0.016 j GWA-30BR<0.1 GWA-30S0.05 j GWA-31D<0.1 GWA-32D0.028 j GWA-33D<0.1 GWA-33S0.017 jGWA-34S<0.1 GWA-35D0.023 j GWA-36D<0.1 GWA-36S1.7 GWA-37D<0.1 GWA-37S0.1 GWA-43D<0.1 GWA-43S0.05 j GWA-44BR<0.1 GWA-44D<0.1 GWA-44S0.14 GWA-47D0.15 GWA-48BR<0.1 IB-1S*0.82 j IB-3D<0.1 IB-3S0.396 IB-4BR<0.1 MW-2DA0.032 j,B MW-8D<0.1 MW-8S<0.1 MW-10D0.073 j MW-10S0.12 MW-11S0.062 j MW-20D0.017 j MW-20DR<0.1 R1 MW-21BR<0.1 MW-21D0.034 j MW-22DR<0.1 MW-23D<0.1 MW-23DR<0.1 MW-23S0.08 j MW-24D0.027 j MW-24DR<0.1 MW-25DR<0.1 MW-30D<0.1 MW-30S0.057 j MW-32BR<0.1 MW-32D<0.1 MW-32S0.071 j MW-34BRU<0.1 MW-36BRU<0.1 MW-36S<0.1 MW-38BR<0.1 MW-40BRU<0.1 MW-42S0.04 j+ U5-1D<0.1 U5-1S<0.1 U5-2BR0.32 U5-2D0.024 j U5-4D<0.1 U5-4S0.041 j U5-5D0.054 j U5-6D0.068 jU5-7S*<0.1 U5-8D<0.1 U5-8S<0.1 GWA-25DNM MW-22BRNM AB-3SL*0.11 AS-2BR<0.1 AS-4SNM AS-6BRA0.023 j+ CCPMW-2DNA CCPMW-2SNA CCPMW-3DNA CCPMW-3SNA CCPMW-6DNA CCPMW-6SNA CCPTW-1DNA CCPTW-1SNA CCPTW-2NA CLMW-4<0.1 GWA-14BR<0.1 GWA-20BR<0.1 GWA-28S<0.1 GWA-29BRA<0.1 GWA-31BR0.12 GWA-31BRA0.12 GWA-32BRNM GWA-33BR<0.1 GWA-38DNM GWA-38S0.028 j GWA-45S0.15 IB-1D<0.1IB-2AL0.48 IB-2BRU<0.1 IB-2I0.033 j IB-2S-SL*<0.1 IB-4D<0.1 IB-4S-SL*0.21 MW-4D<0.1 MW-34S0.017 j MW-42DA0.052 j U5-3D0.081 j U5-3SA0.084 j AB-3BRUNM AB-3BRUANM AS-6BRNM AS-7BRNM CCPMW-4NA CCPMW-5NA GWA-2BRNM GWA-6DNM GWA-6SNM GWA-26DNM GWA-29BRNM GWA-30BRUNM MW-2DNM MW-7DNM MW-42DNM U5-2S-SLA*NM U5-4BRNM U5-5BRNM U5-6SNM U5-7DNM U5-8BRNM ACTIVEASH BASIN ASH STORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BROAD RIVER B R O A D R IV E R SUCK CREEKM C C O M B S R D D O W N R I V E R D R STATE RD 1209PROSPECT CHURCH RDFOX PL STATE RD 1207WOOD RDSTATE RD 2503RIVERFRONT DR PRO SPE CT CHURCH RD STATE RD 1209MCCRAW RD STATE RD 1002WESTON DRSTATE RD 1997 STATE RD 1994 OLD FIELD RDDYSART RDLIVERETT TRLD Y S A R T R D H IN E S R D S T A T E R D 2 1 0 2STA TE RD 1995COBB RDKIRBY RD STATERD 2100 HIN ES R D STAT E R D 2 1 0 2 STATE RD 2101 BALLENGER RD DUKE POWER RD OLD US HWY 221ASTATERD 1993US HWY 221 ALTTHALLIUM CONCENTRAT IONS ARE REPORTED IN µg/L AND THE INTERIM MAXIMUMALLOWABLE CONCENTRATION (IMAC) IS 0.2 µg/L. NM = NO VALI D RESULT S; NA = NOT ANALYZE D; < = NOT DETECTED AT A CONCENTRATIONATTAINING T HE LABORATORY METHOD REPORTING LIMIT * ASH PORE WATER W ELL. PORE WATER IS CONSIDERED WASTEWATER AND GROUNDWATERSTANDARDS ARE NOT APPICABLE. THE DETERMINATION OF CONCENTRATI ON T RENDS OVER TIME ARE GENERALIZED BASEDON AVAILABLE DATA AND W ERE NOT STATISTICALLY DETERMINED. CONCENTRATIONS REPORTED ON FIGURE REPRE SENT MOST RECENT SAMPLE RESULTSFOR EACH WELL. COLLECTION DATES DEPICT ED ON FIGURE RANGE FROM MARCH 2015 TOAUGUST 2017. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFER TO ANALYTICAL DATATABLE NOTES FOR QUALI FIER DEFINITIONS. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY. AERIAL P HOTOGRAPHY OB TAINED F ROM GOOGLE EARTH PRO ON SEPTEMBER 27, 2017.AERIAL WAS COLLECTED ON JUNE 13, 2016. DRAWI NG HAS BEEN SET WIT H A P ROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 14-79GROUNDWATER CONCENTRATIONTREND ANALYSIS -THALLIUM IN ALL FLOW LAYERSCLIFFSIDE STEAM STATIONDUKE ENERGY CAROLINAS, LLCMOORESBORO, NORTH CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/29/2018 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\Cliffsid e \Mapdo cs\CSA_Supplement_2\Cliffside - GW Trend Analysis.mxd 500 0 500 1,000250 GRAPHIC SCAL E IN FEET CAROLINAS LEGEND ASH BASI N WASTE BOUNDARY ASH BASI N CO MPLIANCE BOUNDARY LA NDFI LL/ASH STORAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARYSURFACE WATER W IT H FLOW DIRECTION< UNKNOW N CONCENTRATION OVER TIME STABLE C ONCENTRATION OVER TIME INCREASI NG CONCENTRATION OVER TIME DECREASI NG CONCENTRATION OVER TIME &<MONITORING W ELL !(ABANDONED MONITORING W ELL NOTES: &<&< &<&< &<&<&< &<&<&<&< &<&<&< &<&<&< &<&< &<&<&< &< &<&< &<&<&< &<&<&<&<&< &<&<&< &< &<&< &<&<&<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &<&<&< &<&< &<&< &<&< &<&< &<&< &< &<&<&< &<&<&< &<&<&< &<&< &< &<&<&< &< &< &<&<&< &<&<&< &<&< &<&< &<&<&< &<&< &<&<&< &< &<&<&<&< &<&< &<&< &<&< &<&<&< &< &< &< &<&< &<&<&<&< &<&< &<&<&< &< &< &<&< &<&< &< &<&< &<&< &< &<&<&< &<&< &< &<&< &<&<&< &<&< &<&<&<&<&< &<&< &<&< &<&< &<&< &<&< &<&< &< &< &<&< &<&< &<&< &<&< &< &< &< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( !( !(!( !(!(!(!(!(!( !(!(!( !( !(!( !(!( !( !( !( AB-3S*5.2 AS-3BRU0.16 j,B AS-5S0.22 j AS-6D0.14 j BG-1S0.14 j BG-2D3.24 CLMW-5S0.76 GWA-5S0.33 GWA-21S0.56 GWA-28BRU0.19 j GWA-37S0.92 GWA-43S1 MW-23S0.97 U5-1D1.5 U5-4S0.39 U5-6D1.7 AB-2S0.094 j AB-4D0.13 j AB-5S*2.4 AS-1D0.083 j AS-2D0.43 AS-4D0.39 AS-7S*0.57 CCPMW-1S<0.3 CLMW-3D0.36 CLMW-3S0.078 j CLMW-60.28 j GWA-1BRU0.1 j GWA-2BRU0.47 GWA-2S0.3 j GWA-3D0.74 GWA-4S0.18 j GWA-5BRU0.56 GWA-10D0.46 GWA-14S1.5 GWA-21BR<0.3 GWA-30BR<0.3 GWA-30S<0.3 GWA-31D0.27 j GWA-32D0.13 j GWA-33D0.41 GWA-35D0.18 j GWA-36D0.27 j GWA-44BR0.51 GWA-44D0.92 GWA-44S0.97 IB-3S0.422 MW-2DA0.45 MW-10D0.094 j MW-20D0.094 j,B MW-21BR0.41 B MW-22DR<0.3 MW-23D<0.3 MW-30S0.2 j MW-38BR<0.3 MW-40BRU1.7 MW-40S1.1 MW-42S0.56 U5-2BR<0.3 U5-2D1.4 U5-7S*0.68 U5-8D0.72 AB-1D0.15 j,B AB-1S0.22 j,B AB-2D<0.3 AB-3I2.2 AB-4BR<0.3 AB-4S*25.3 AB-4SL*17 AB-5BR<0.3 AB-5BRU0.44AB-6D0.085 j AB-6S*30.5 AS-2S<0.3 AS-5BR1.6 AS-5BRU0.22 j AS-6S0.16 j AS-7D0.82 BG-1BR1.5 BG-1D0.12 j CCPMW-1D<0.3 CLMW-10.23 j CLMW-20.16 j GWA-4D0.19 j GWA-10S0.62 GWA-11BRU<0.3 GWA-11S1.1 GWA-12BRU0.19 j GWA-12S0.086 jGWA-13BR0.15 j GWA-14D0.42 GWA-20D<0.3 GWA-20S<0.3 GWA-21BRU<0.3 GWA-22BRU1.4 GWA-22S1.4 GWA-23D<0.3 GWA-24D<0.3 GWA-24S<0.3 GWA-25S0.27 j,B GWA-26S0.21 j,B GWA-27BR0.15 j GWA-27D<0.3 GWA-27DA0.32 GWA-28BR0.11 j GWA-29D0.14 j GWA-33S0.96GWA-34S0.26 j GWA-35S0.3 GWA-36S<0.3 GWA-37D1 GWA-43D0.78 GWA-47D0.21 j,B GWA-48BR0.14 j IB-1S*<3 IB-4BR<1 MW-8D0.13 j MW-8S<0.3 MW-10S0.13 j MW-11S0.32 B MW-20DR0.084 j,B,M1,R1 MW-21D0.2 j,B MW-23DR<0.3 MW-24D0.082 j MW-24DR<0.3 MW-25DR0.6 MW-30D12.2 MW-32BR<0.3 MW-32D0.16 j MW-34BRU0.37 MW-36BRU0.39 MW-36S0.47 MW-38D0.69 MW-38S0.71 U5-1S0.37 U5-4D1.7 U5-5D0.71 U5-8S<0.3 GWA-25DNM MW-22BRNM AB-3SL*57.6 AB-6BR0.07 j AS-1SB0.078 j AS-2BR0.66 AS-4SNM AS-6BRA1.7 CCPMW-2DNA CCPMW-2SNA CCPMW-3DNA CCPMW-3SNA CCPMW-6DNA CCPMW-6SNA CCPTW-1DNA CCPTW-1SNA CCPTW-2NA CLMW-4<1 GWA-14BR0.41 GWA-20BR0.14 j GWA-24BR<0.3 GWA-28S0.72 GWA-29BRA0.56 GWA-31BR<0.3 GWA-31BRA<0.3 GWA-32BRNM GWA-33BR<0.3 GWA-38DNM GWA-38S0.41 GWA-45S0.24 j IB-1D7.3IB-2AL<1 IB-2BRU<1 IB-2I1 j+ IB-2S-SL*0.77 j IB-3D0.31 IB-4D<1 IB-4S-SL*2 j+ MW-4D<1 MW-32S0.48 MW-34S0.16 j MW-42DA2.4 U5-3D0.36 U5-3SA1 U5-7SL*1.8 j AB-3BRUNM AB-3BRUANM AS-6BRNM AS-7BRNM CCPMW-4NA CCPMW-5NA GWA-2BRNM GWA-6DNM GWA-6SNM GWA-26DNM GWA-29BRNM GWA-30BRUNM MW-2DNM MW-7DNM MW-42DNM U5-2S-SLA*NM U5-4BRNM U5-5BRNM U5-6SNM U5-7DNM U5-8BRNM ACTIVEASH BASIN ASH STORAGEAREA UNIT S 1-4INACTIVEASH BASIN UNIT 5INACTIVEASH BASIN CCPLANDFILL BROAD RIVER B R O A D R IV E R SUCK CREEKM C C O M B S R D D O W N R I V E R D R STATE RD 1209PROSPECT CHURCH RDFOX PL STATE RD 1207WOOD RDSTATE RD 2503RIVERFRONT DR PRO SPE CT CHURCH RD STATE RD 1209MCCRAW RD STATE RD 1002WESTON DRSTATE RD 1997 STATE RD 1994 OLD FIELD RDDYSART RDLIVERETT TRLD Y S A R T R D H IN E S R D S T A T E R D 2 1 0 2STA TE RD 1995COBB RDKIRBY RD STATERD 2100 HIN ES R D STAT E R D 2 1 0 2 STATE RD 2101 BALLENGER RD DUKE POWER RD OLD US HWY 221ASTATERD 1993US HWY 221 ALTVANADIUM CONCENTRAT IONS ARE REPORTED IN µg/L AND THE INTERIM MAXIMUMALLOWABLE CONCENTRATION (IMAC) IS 0.3 µg/L. NM = NO VALI D RESULT S; NA = NOT ANALYZE D; < = NOT DETECTED AT A CONCENTRATIONATTAINING T HE LABORATORY METHOD REPORTING LIMIT * ASH PORE WATER W ELL. PORE WATER IS CONSIDERED WASTEWATER AND GROUNDWATERSTANDARDS ARE NOT APPICABLE. THE DETERMINATION OF CONCENTRATI ON T RENDS OVER TIME ARE GENERALIZED BASEDON AVAILABLE DATA AND W ERE NOT STATISTICALLY DETERMINED. CONCENTRATIONS REPORTED ON FIGURE REPRE SENT MOST RECENT SAMPLE RESULTSFOR EACH WELL. COLLECTION DATES DEPICT ED ON FIGURE RANGE FROM MARCH 2015 TOAUGUST 2017. DATA PRESENTED MAY INCLUDE LAB-QUALIFIED RESULTS. REFER TO ANALYTICAL DATATABLE NOTES FOR QUALI FIER DEFINITIONS. PROPERTY BOUNDARY PROVIDED BY DUKE ENERGY. AERIAL P HOTOGRAPHY OB TAINED F ROM GOOGLE EARTH PRO ON SEPTEMBER 27, 2017.AERIAL WAS COLLECTED ON JUNE 13, 2016. DRAWI NG HAS BEEN SET WIT H A P ROJECTION OF NORTH CAROLINA STATE PLANECOORDINATE SYSTEM FIPS 3200 (NAD83/2011). FIGURE 14-80GROUNDWATER CONCENTRATIONTREND ANALYSIS -VANADIUM IN ALL FLOW LAYERSCLIFFSIDE STEAM STATIONDUKE ENERGY CAROLINAS, LLCMOORESBORO, NORTH CAROLINADRAWN BY: A. FEIGLPROJECT MANAGER: S. SPINNERCHECKED BY: M. YOUNGBLOOD DATE: 01/29/2018 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\Cliffsid e \Mapdo cs\CSA_Supplement_2\Cliffside - GW Trend Analysis.mxd 500 0 500 1,000250 GRAPHIC SCAL E IN FEET CAROLINAS LEGEND ASH BASI N WASTE BOUNDARY ASH BASI N CO MPLIANCE BOUNDARY LA NDFI LL/ASH STORAGE AREA BOUNDARY DUKE ENERGY PLANT SITE BOUNDARYSURFACE WATER W IT H FLOW DIRECTION< UNKNOW N CONCENTRATION OVER TIME STABLE C ONCENTRATION OVER TIME INCREASI NG CONCENTRATION OVER TIME DECREASI NG CONCENTRATION OVER TIME &<MONITORING W ELL !(ABANDONED MONITORING W ELL NOTES: