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Home My WebLink AboutNC0003468_DRSS CSA Rpt_Sect_11_Figures_20150814�'r NOTES: 1. PARCEL DATA FOR THE SITE WAS OBTAINED FROM DUKE ENERGY REAL ESTATE AND IS APPROXIMATE. 2. WASTE BOUNDARY IS APPROXIMATE. 3. AS -BUILT MONITORING WELL LOCATIONS PROVIDED BY DUKE ENERGY. 4. COMPLIANCE SHALLOW MONITORING WELLS (S) ARE SCREENED ACROSS THE SURFICIAL WATERTABLE. 5. COMPLIANCE DEEP MONITORING WELLS (D) ARE SCREENED IN THE TRANSITION ZONE BETWEEN COMPETENT BEDROCKAND REGOLITH. 6. TOPOGRAPHY DATA FOR THE SITE WAS OBTAINED FROM NC DOT GEOGRAPHIC INFORMATION SYSTEM (GIS) WEBSITE(DATED2010) 7. AERIAL PHOTOGRAPHY WAS OBTAINED FROM WSP DATEDAPRIL2014. 8. THE COMPLIANCE BOUNDARY IS ESTABLISHED ACCORDING TO THE DEFINITION FOUND IN 15A NCACO2L.0107 (a). 9. PROPOSED WELL LOCATIONS ARE APPROXIMATE AND MAY BE ADJUSTED BASED ON FIELD CONDITIONS. 10. SEEP SAMPLE LOCATIONS WERE OBTAINED BY HDR USING ATRIMBLE HANDHELD GPS UNIT. 11. HYDROGRAPHY WAS OBTAINED FROM USGS 7.5-MINUTE SERIES TOPOGRAPHIC MAPS SOUTHEASTEDEN, NCAND NORTHEASTEDEN, NC -VA. PRIMARY CELL LEGEND: DUKE ENERGY PROPERTY BOUNDARY ! h, ASH BASIN WASTE BOUNDARY hTpr� ASH STORAGE AREA BOUNDARY <j'` •� + COMPLIANCE BOUNDARY COMPLIANCE BOUNDARY COINCIDENT WITH DUKE PROPERTY BOUNDARY x !-' STREAM ` - LANDFILL - LAND CLEARING & INERT DEBRIS TOPOGRAPHIC CONTOUR (4-FTINTERVAL) FLOW TRANSECT ASH BASIN COMPLIANCE GROUNDWATER Q. •• MONITORING WELL(RED) ASH BASIN VOLUNTARY GROUNDWATER {? MONITORING WELL(BLACK) ASH BASIN ASSESSMENT SOIL BORING/GROUNDWATER MONITORING WELL LOCATION SCALE (FEET) 150' 0 /50' 300' /" - 300' T MAJOR FLOW TRANSECTS DUKE ENERGY CAROLINAS, LLC DAN RIVER STEAM STATION ASH BASIN NPDES PERMIT #NCO003468 ROCK�NGHAIM COUNTY, NORTH CAROLINA DATE AUGUST 2015 1a[emwo Ln LO 0 a m 3 CL HDR Engineering, Inc. of the Carolinas N.C.B.E.L.S. License Number: F-0116 440 S. Church Street, Suite 900 Charlotte, NC 28202-2075 704.338.6700 ISSUE DATE DESCRIPTION PROJECT MANAGER M. FILARDI, P.G. DRAWN BY: - DESIGNED BY: - CHECKED BY: - APPROVED BY: - PROJECT NUMBER 000000000246415 NOT FOR CONSTRUCTION DUKE ENERGY CAROLINAS,LLC DUKE �. 'ENERGY.. DAN RIVER STEAM STATION COMPREHENSIVE SITE ASSESSMENT ROCKINGHAM COUNTY NORTH CAROLINA HYDROSTRATIGRAPHIC CROSS SECTION A -A' 0 1" 2° FILENAME I FIGURE 11-2.DWG SCALE I AS NOTED SHEET FIGURE 11-2 HDR Engineering, Inc. of the Carolinas N.C.B.E.L.S. License Number: F-0116 440 S. Church Street, Suite 900 Charlotte, NC 28202-2075 704.338.6700 ISSUE DATE DESCRIPTION PROJECT MANAGER M. FILARDI, P.G. DRAWN BY: - DESIGNED BY: - CHECKED BY: - APPROVED BY: - PROJECT NUMBER 000000000246415 NOT FOR CONSTRUCTION DUKE ENERGY CAROLINAS,LLC DUKE �. 'ENERGY.. DAN RIVER STEAM STATION COMPREHENSIVE SITE ASSESSMENT ROCKINGHAM COUNTY NORTH CAROLINA HYDROSTRATIGRAPHIC CROSS SECTION B-B' 0 1" 2° FILENAME I FIGURE 11-3.DWG SCALE I AS NOTED SHEET FIGURE 11-3 0 r. 7 8 NOTES: ? = ESTIMATED TRANSITION ZONE (TZ) BEDROCK (BR) CONTACT z 0 Q w J w C NORTH 600 550 500 450 400 m cn m o l N N N aaa f (N m (n Wilk tV N N — 4NN _ -- - -Lnn ----- DAN RIVER I 0 200 400 600 800 1000 DISTANCE (ft) HDR Engineering, Inc. of the Carolinas N.C.B.E.L.S. License Number: F-0116 440 S. Church Street, Suite 900 Charlotte, NC 28202-2075 704.338.6700 ISSUE DATE DESCRIPTION .SECTION c SCALE: HORIZ 1 "=60' 11-1 VERT 1 "=20' PROJECT MANAGER M. FILARDI, P.G. DRAWN BY: - DESIGNED BY: - CHECKED BY: - APPROVED BY: - PROJECT NUMBER 000000000246415 NOT FOR CONSTRUCTION C' SOUTH 600 550 500 450 400 DUKE ENERGY CAROLINAS,LLC jf%� DUKE DAN RIVER STEAM STATION ENERGY. COMPREHENSIVE SITE ASSESSMENT ROCKINGHAM COUNTY NORTH CAROLINA LEGEND: WATER TABLE SURFACE (JUNE 2015) V WATER TABLE SURFACE SYMBOL ASH — ASH F — FILL S — ALLUVIUM M1 — SOIL/SAPROLITE; N < 50 M2 — SAPROLITE/WEATHERED ROCK; N >_ 50% OR REC S 50% TZ — PARTIALLY WEATHERED ROCK; REC>50% AND RQD <50% BR — SOUND ROCK;REC >: 85% AND RQD >_ 50% HYDROSTRATIGRAPHIC CROSS SECTION C-C' C 10 v 0 1" 2" FILENAME FIGURE 11-4.DWG SHEET SCALE AS NOTED FIGURE 11-4 HDR Engineering, Inc. of the Carolinas N.C.B.E.L.S. License Number: F-0116 440 S. Church Street, Suite 900 Charlotte, NC 28202-2075 704.338.6700 ISSUE DATE DESCRIPTION PROJECT MANAGER M. FILARDI, P.G. DRAWN BY: - DESIGNED BY: - CHECKED BY: - APPROVED BY: - PROJECT NUMBER 000000000246415 NOT FOR CONSTRUCTION DUKE ENERGY CAROLINAS,LLC DUKE �. 'ENERGY.. DAN RIVER STEAM STATION COMPREHENSIVE SITE ASSESSMENT ROCKINGHAM COUNTY NORTH CAROLINA HYDROSTRATIGRAPHIC CROSS SECTION D-DI 0 1" 2° FILENAME I FIGURE 11-5.DWG SCALE I AS NOTED SHEET FIGURE 11-5 &<&< &<&< &<&< &<&< &<&< &<&< &<&< &< &< &< &< &<&< &<&< &<&<&< &<&<&< &<&<&< &< &< &<&< &< &<&< &< &< &< &<&< &<&< &<&< &<&< &<&< &< &<&< &<&< &<&< &<&< &<&< &<&<&<&< &<&< &<&< &< &< &< &< &< &< &< &<&< &< &<&< ! !! ! !( !(!( ! !( ! ! ! ! # # # # ## # # # AB5S/DAB5S/D AB10S/SL/DAB10S/SL/D AB35SB/BRAB35SB/BR AS2SB/DAS2SB/D AS4GTB/DAS4GTB/D AS6DAS6D AS8D/BRAS8D/BR AS10DAS10D AS12DAS12D BG1DBG1D GWA1S/DGWA1S/D GWA2S/DGWA2S/D GWA7S/DGWA7S/D GWA8S/DGWA8S/D GWA9S/DGWA9S/D GWA10S/DGWA10S/D GWA11S/DGWA11S/D MW301BRMW301BR MW303BRMW303BR MW306BRMW306BR MW308BRMW308BR MW310BRMW310BR MW311BRMW311BR MW314BRMW314BR MW315BRMW315BR MW317BRMW317BR MW318DMW318D MW12DMW12D MW20S/DMW20S/D OW308DOW308D OW310DOW310D OW320DOW320D OW305SOW305S SW-1SW-1 SW-3SW-3 S-4S-4 SW-2SW-2 SW-9SW-9 NPDESNPDESOUTFALLOUTFALL002002 INFSW009INFSW009 SW009ASW009A#2165#2165 NPDES 001,NPDES 001,SW021, OLD NPDESSW021, OLD NPDES005 (OUT001)005 (OUT001) NPDES004NPDES004AND SW2AND SW2 OLDOLDNPDES006NPDES006 D a n R i v e r S R -1 7 4 7 S R -1 9 7 4 S R-19 7 4 S R - 1 9 6 2 SR - 1 9 6 2 SR - 1 9 5 3 S R - 1 9 5 3 S R - 1 7 7 9 SR - 1 7 7 9 ASH STORAGE 1 ASHSTORAGE 2 DAN RIVERCOMBINEDCYCLE STATION SERVICE WATERSETTLING POND DANRIVER STREAMSTATION ASH BASINPRIMARYCELL LCIDLANDFILL(CLOSED) ASH BASINSECONDARYCELL COMPARISON OF GROUNDWATERAND SURFACE WATER ANALYTICAL RESULTS- PLAN VIEW (2L EXCEEDANCES) CLEVELAND AND RUTHERFORD COUNTIES, NORTH CAROLINA PA T H : \ \ S A C - S R V 0 1 \ G I S \ P R O J E C T S \ D U K E E N E R G Y \ A S H B A S I N \ M A P _ D O C S \ D A N R I V E R \ R E P O R T _ D A N R V _ A R C H D _ C H E M B O X _ S W . M X D - U S E R : R O L D E N - D A T E : 8 / 1 2 / 2 0 1 5 LEGEND: &<GROUNDWATER ASSESSMENT MONITORING &<CLOSURE OBSERVATION WELL &<COMPLIANCE GROUNDWATER MONITORING WELL &<VOLUNTARY GROUNDWATER MONITORING WELL !(SEEP AND SEDIMENT SAMPLE !SURFACE WATER SAMPLE LOCATION #DCDENR MARCH 2014 SAMPLE LOCATION DUKE ENERGY PROPERTY BOUNDARY ASH BASIN WASTE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY ASH BASIN COMPLIANCE BOUNDARY COINCIDENT WITH DUKEENERGY PROPERTY BOUNDARY DATE FIGURE AUGUST 2015 11-6 500 0 500 1,000 SCALE (FEET) DUKE ENERGY CAROLINAS, LLCDAN RIVER STEAM STATION ASH BASIN N NOTES:U = NOT DETECTED ABOVE THE LABORATORY REPORTING LIMITJ = ESTIMATED CONCENTRATION<3.0 = LESS THAN THE LABORATORY REPORTING LIMITJ+ = ESTIMATED CONCENTRATION BIASED HIGHJ- = ESTIMATED CONCENTRATION BIASED LOW mg/L: MILLIGRAMS PER LITERµg/L: MICROGRAMS PER LITER GWA-10D, GWA-14S, GWA-10S DRY AT THE TIME OF SAMPLING Manganese 280 MW-23DAnalyte (µg/L) Manganese 150 GWA-12SAnalyte (µg/L) Cobalt 12.2Manganese 533 GWA-3SAnalyte (µg/L) Cobalt 1.4Iron 1,700Manganese 810Vanadium 1.2 J+ GWA-11DAnalyte (µg/L)Chromium 15.6Cobalt 3.3Manganese 1,200Vanadium 0.52 J GWA-11SAnalyte (µg/L) Cobalt 2.7Iron 530Manganese 590Vanadium 0.6 J GWA-4SAnalyte (µg/L) Manganese 300Vanadium 0.67 J GWA-14DAnalyte (µg/L) Arsenic 16.8Manganese 670Vanadium 1.5 MW-21SAnalyte (µg/L)Iron 550Manganese 920Sulfate 274,000Total Dissolved Solids 639,000 MW-21DAnalyte (µg/L) Iron 840Manganese 270Sulfate 307,000Total Dissolved Solids 705,000Vanadium 1.5 GWA-15DAnalyte (µg/L) Cobalt 29.2Iron 400Manganese 880Vanadium 2.6 MW-11Analyte (µg/L) Antimony 2.6 JCobalt 29Manganese 1,500 AB-30SAnalyte (µg/L) Manganese 1,000 MW-10DAnalyte (µg/L) Antimony 1.7Boron 840Manganese 180Vanadium 0.69 J AB-25DAnalyte (µg/L) Iron 15,600Manganese 950Vanadium 0.74 J MW-22SAnalyte (µg/L) Cobalt 6.4Iron 990Manganese 1,000Vanadium 2.3 MW-9Analyte (µg/L) Cobalt 1.3 JIron 21,200Manganese 3,700Vanadium 6.5 GWA-6SAnalyte (µg/L) Cobalt 2.1Iron 890Manganese 110Vanadium 2.6 BG-5SAnalyte (µg/L) Manganese 160Vanadium 0.55 J CCSW001Analyte (µg/L) Manganese 450Vanadium 0.56 J CCSW002Analyte (µg/L) Cobalt 1.5Manganese 2,200 DRRC001Analyte (µg/L) Cobalt 4.88Iron 5,720Manganese 829Vanadium 8.06 S-1Analyte (µg/L) Aluminum 27,600Arsenic 63.7Chromium 33.6Cobalt 15.5Copper 27.3Lead 20.1Thallium 0.315Zinc 93 SW-3Analyte (µg/L) Aluminum 127 SW-4Analyte (µg/L) Aluminum 90Copper 4.62 J+ SW-5Analyte (µg/L) Lead 0.97 SW-7Analyte (µg/L) Lead 0.64 SW-8Analyte (µg/L) Lead 0.88 SW-6Analyte (µg/L) Analyte CAS No.NC 2L GroundwaterIMAC1 NC 02BSurface Water Standard 2 Antimony 7440-36-0 1*5.6Arsenic7440-38-2 10 10Barium7440-39-3 700 1000Beryllium7440-41-7 4*6.5Boron7440-42-8 700 NSCadmium7440-43-9 2 0.15Chloride**16887-00-6 250,000 230,000Chromium7440-47-3 10 24Cobalt7440-48-4 1*3Copper**7440-50-8 1,000 3Iron7439-89-6 300 NSLead7439-92-1 15 0.54Manganese7439-96-5 50 NSMercury7439-97-6 1 NSNickel7440-02-0 100 16Nitrate**14797-55-8 10,000 10,000Nitrite as N**14797-65-0 1,000 NSSelenium7782-49-2 20 NSSulfate**14808-79-8 250,000 250,000Thallium7440-28-0 0.2 0.24Total Dissolved Solids** TDS 500,000 NSVanadium7440-62-2 0.3*NSZinc**7440-66-6 1000 36* Interim Maximum Allowable Concentration (IMAC) ** Unit reported in mg/L in standard, converted here to ug/L to match units displayed on figure. All units shown in ug/L except for pH which is standard units. 1 - North Carolina 15A NCAC 02L.0202 Groundwater Standards (As of 4/2013). Interim Maximum Allowable Concentration shown where no standard is available for comparison.2 - North Carolina 15A NCAC 02B Surface Water Standards and Protective Values & EPA National Recommended Water Quality Criteria (4/2015). Lowest of Human Health, Water Supply, or Aquatic Life values used for comparison. A B - 3 0 S G W A - 1 S G W A - 2 S G W A - 3 S G W A - 6 S G W A - 7 S GWA-8S G W A - 9 S G W A - 1 0 S G W A - 1 1 S GWA-12S A B - 5 S M W - 2 2 S 5 5 6 . 5 0 5 7 2 . 5 8 5 5 2 . 9 6 5 6 4 . 1 2 5 7 2 . 6 8 5 5 8 . 6 2 5 4 8 . 2 5 5 4 0 . 3 5 572.49568.52 5 8 1 . 5 0 5 5 8 . 0 9 5 5 3 . 7 6 D R Y 507.29 5 2 7 . 0 8 D R Y 4 9 6 . 8 7 4 8 4 . 7 7 5 0 6 . 0 2 4 8 7 . 9 5 5 2 2 . 0 6 5 1 9 . 7 0 5 0 7 . 2 9 4 9 3 . 3 8 4 8 9 . 0 5 G W A - 1 5 S D R Y 5 0 5 . 8 8 D A N R I V E R D A N R I V E R BG-5S 5 1 4 . 1 8 S T R E A M G R O U N D W A T E R F L O W P A T H G R O U N D W A T E R F L O W V E L O C I T Y P A T H L I N E S H A L L O W G R O U N D W A T E R M O N I T O R I N G W E L L L O C A T I O N W I T H G R O U N D W A T E R E L E V A T I O N S H A L L O W C O M P L I A N C E G R O U N D W A T E R M O N I T O R I N G W E L L L O C A T I O N W I T H G R O U N D W A T E R E L E V A T I O N S H A L L O W V O L U N T A R Y G R O U N D W A T E R M O N I T O R I N G W E L L L O C A T I O N W I T H G R O U N D W A T E R E L E V A T I O N G R O U N D W A T E R E L E V A T I O N C O N T O U R L I N E L E G E N D : P 5 % # . ' ( ' ' 6 NOTES:1. AS-BUILT MONITORING WELL LOCATIONS PROVIDED BY DUKE ENERGY.2. COMPLIANCE SHALLOW MONITORING WELLS (S) ARE SCREENED ACROSS THE SURFICIAL WATER TABLE.3. AERIAL PHOTOGRAPHY WAS OBTAINED FROM WSP DATED APRIL 2014.4. HYDROGRAPHY WAS OBTAINED FROM USGS 7.5-MINUTE SERIES TOPOGRAPHIC MAPS SOUTHEAST EDEN, NC AND NORTHEAST EDEN, NC-VA.5. GROUNDWATER VELOCITIES IN FEET/YEAR D A T E F I G U R E G R O U N D W A T E R V E L O C I T I E S - S W E L L S D U K E E N E R G Y C A R O L I N A S , L L C D A N R I V E R S T E A M S T A T I O N A S H B A S I N D A T E F I G U R E G W A - 1 4 S / D G W A - 1 5 S / D A S - 4 D A S - 8 D A S - 1 0 D BG-1D BG-5D G W A - 1 D G W A - 2 D G W A - 3 D G W A - 6 D G W A - 7 D GWA-8D G W A - 9 D G W A - 1 0 D G W A - 1 1 D GWA-12D A S - 6 D M W - 2 2 D 4 9 9 . 9 5 4 9 6 . 5 5 D r y 4 9 2 . 1 4 5 1 6 . 6 5 5 4 1 . 4 5 5 4 4 . 6 7 5 4 8 . 1 1 5 4 9 . 1 2 5 5 1 . 2 5 5 7 1 . 0 2 5 8 3 . 5 7 5 8 8 . 0 4 5 7 1 . 0 1 5 5 8 . 1 0 5 7 2 . 7 1 5 7 0 . 0 6 5 8 0 . 3 7 4 9 3 . 6 5 4 8 1 . 5 3 5 5 0 . 3 0 5 4 5 . 1 3 D r y 5 4 7 . 1 7 5 2 0 . 0 0 5 2 5 . 1 5 5 2 1 . 5 6 5 2 1 . 4 8 A B - 5 D 4 8 2 . 0 0 5 1 4 . 6 3 4 9 1 . 5 1 5 0 9 . 0 9 4 8 3 . 2 6 4 9 3 . 8 5 4 6 5 . 5 6 5 0 6 . 9 3 5 2 6 . 1 5 500.38 507.17 5 5 7 . 5 8 567.75 564.31513.47 D A N R I V E R D A N R I V E R G W A - 1 5 D A B - 1 0 D A B - 3 0 D 4 9 0 . 6 0 L E G E N D : S T R E A M G R O U N D W A T E R F L O W P A T H G R O U N D W A T E R F L O W V E L O C I T Y P A T H L I N E I N S T A L L E D S H A L L O W G R O U N D W A T E R M O N I T O R I N G W E L L L O C A T I O N W I T H G R O U N D W A T E R E L E V A T I O N S H A L L O W C O M P L I A N C E G R O U N D W A T E R M O N I T O R I N G W E L L L O C A T I O N W I T H G R O U N D W A T E R E L E V A T I O N S H A L L O W V O L U N T A R Y G R O U N D W A T E R M O N I T O R I N G W E L L L O C A T I O N W I T H G R O U N D W A T E R E L E V A T I O N G R O U N D W A T E R E L E V A T I O N C O N T O U R L I N E P 5 % # . ' ( ' ' 6 NOTES:1. AS-BUILT MONITORING WELL LOCATIONS PROVIDED BY DUKE ENERGY.2. COMPLIANCE SHALLOW MONITORING WELLS (S) ARE SCREENED ACROSS THE SURFICIAL WATER TABLE.3. AERIAL PHOTOGRAPHY WAS OBTAINED FROM WSP DATED APRIL 2014.4. HYDROGRAPHY WAS OBTAINED FROM USGS 7.5-MINUTE SERIES TOPOGRAPHIC MAPS SOUTHEAST EDEN, NC AND NORTHEAST EDEN, NC-VA.5. GROUNDWATER VELOCITIES IN FEET/YEAR D A T E F I G U R E G R O U N D W A T E R V E L O C I T I E S - D W E L L S D U K E E N E R G Y C A R O L I N A S , L L C D A N R I V E R S T E A M S T A T I O N A S H B A S I N D A T E F I G U R E 4 8 6 5 0 2 4 9 8 510 554 574 5 2 2 4 9 0 SOUTH EDGEWOOD ROAD A S H S T O R A G E 2 A S H S T O R A G E 1 DAN RIVERSTEAM STATION A S H B A S I N P R I M A R Y C E L L A S H B A S I N S E C O N D A R Y C E L L DAN R I V E R DAN R I V E R COMBINED C Y C L E S T A T I O N SERVICE WATERSETTLING POND A B - 3 0 B R A B - 3 5 B R A S - 8 B R M W - 3 0 1 B R M W - 3 0 3 B R M W - 3 0 6 B R M W - 3 0 8 B R M W - 3 1 0 B R M W - 3 1 1 B R M W - 3 1 4 B R M W - 3 1 5 B R M W - 3 1 7 B R D A N R I V E R D A N R I V E R 4 8 9 . 9 0 5 0 8 . 9 8 5 2 1 . 0 8 5 2 1 . 4 8 5 1 0 . 4 5 4 9 5 . 8 8 4 8 6 . 1 2 527.55 5 2 5 . 5 7 5 4 7 . 7 5 5 4 5 . 3 9 5 4 4 . 3 4 5 5 7 . 8 5 5 7 0 . 6 4 UNNAMED STREAM UNNAMED STREAM U N N A M E D S T R E A M U N N A M E D S T R E A M UNNAMED S T R E A M S T R E A M G R O U N D W A T E R F L O W V E L O C I T Y P A T H L I N E B E D R O C K G R O U N D W A T E R M O N I T O R I N G W E L L L O C A T I O N W I T H G R O U N D W A T E R E L E V A T I O N G R O U N D W A T E R E L E V A T I O N C O N T O U R L I N E L E G E N D : P 5 % # . ' ( ' ' 6 NOTES:1. AS-BUILT MONITORING WELL LOCATIONS PROVIDED BY DUKE ENERGY.2. AERIAL PHOTOGRAPHY WAS OBTAINED FROM WSP DATED APRIL 2014.3. HYDROGRAPHY WAS OBTAINED FROM USGS 7.5-MINUTE SERIES TOPOGRAPHIC MAPS SOUTHEAST EDEN, NC AND NORTHEAST EDEN, NC-VA.ϰ͘'ZKhEtdZs>K/d/^/E&dͬzZ D A T E F I G U R E G R O U N D W A T E R V E L O C I T I E S - B R W E L L S D U K E E N E R G Y C A R O L I N A S , L L C D A N R I V E R S T E A M S T A T I O N A S H B A S I N D A T E F I G U R E