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Home My WebLink AboutNC0001422_SupplementalFigures_20160801P:\Duke Energy Progress.1026\108. Sutton Ash Basin GW Assessment Plan\16.Corrective Action Plan\Figures\DE SUTTON CAR FIG 1-1 (SITE LOCATION MAP).dwg PROJECT MANAGER: LAYOUT: DRAWN BY: KATHY WEBB DATE:J. CHASTAIN FIG 1 (USGS SITE LOCATION) 2014-12-15 CONTOUR INTERVAL: MAP DATE: 10ft 2013 APPROXIMATE ROUTE OF THE NEW WILLMINGTON BYPASS (I-140) 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA PHONE 864-421-9999 www.synterracorp.com FIGURE 1-1 SITE LOCATION MAP L.V. SUTTON ENERGY COMPLEX 801 SUTTON STEAM PLANT RD WILMINGTON, NORTH CAROLINA LELAND AND CASTLE HAYNE NC QUADRANGLES RALEIGH WILMINGTON GREENVILLE GREENSBORO 3000 GRAPHIC SCALE 1500 IN FEET 15000 U S H I G H W A Y 4 2 1 PROPERTY BOUNDARY 500' COMPLIANCE BOUNDARY WASTE BOUNDARY L.V. SUTTON ENERGY COMPLEX NEW HANOVER COUNTY SOURCE: USGS TOPOGRAPHIC MAP OBTAINED FROM THE USGS STORE AT http://store.usgs.gov/b2c_usgs/b2c/start/%%%28xcm=r3standardpitrex_prd%%%29/.do L.V. SUTTON ENERGY COMPLEX ABMW-1D/S(ABANDONED) ABMW-2DABMW-2S AW-1BAW-1C AW-2BAW-2CAW-2D AW-3BAW-3C AW-4BAW-4C AW-5BAW-5CAW-5DAW-5E AW-6BAW-6DAW-6E AW-7D AW-8BAW-8C AW-9BAW-9CAW-9D GWPZ-1AGWPZ-1B GWPZ-2AGWPZ-2B GWPZ-3AGWPZ-3B GWPZ-4AGWPZ-4B MW-4AMW-4 MW-4B MW-5AMW-5B MW-5C MW-5CDMW-5DMW-5E MW-7C MW-8 MW-9 MW-10 MW-11 MW-12 MW-15/15DABANDONED MW-16MW-16D MW-18ABANDONED MW-19 MW-20MW-20D MW-21C MW-22BMW-22C MW-23BMW-23C MW-23DMW-23E MW-24BMW-24C MW-27B MW-28BMW-28C MW-28T MW-31C MW-32C MW-33C MW-34B/CABANDONED MW-35B/CABANDONED MW-36BMW-36C MW-37BMW-37C MW-37CDMW-37DMW-37E MW-38BMW-38CMW-38DMW-39BMW-39CMW-39D MW-40BMW-40CMW-40D PE-SW-5 PE-SW-6B PE-SW-6D PE-SW-6E PZ-6D PZ-6S PZ-10D PZ-10S PZ-23D PZ-INT SMW-1BSMW-1C SMW-2BSMW-2C SMW-3BSMW-3C SMW-4BSMW-4C SMW-5BSMW-5C SMW-6BSMW-6CSMW-6D SW-004 SW-1C SW-6A SW-8A SW-CF001 MW-24R-BMW-24R-C FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION DW-14 DW-15(PRW-1) DW-09 DW-07 DW-10 DW-08 DW-06 PRW-2 PRW-3DW-11 DW-12 PRW-6 DW-13 PRW-7 NHC-SW2 (NOT IN USE)NHC-SW1 (NOT IN USE) DW-01 DW-02 DW-03 DW-05 DW-04 PWR-08 DW-19 DW-17 DW-18 I n d u s t r i a l A r e a B o n d R o y m a c D r M e t r o C i r T r a n s c o m C t Fre dric k s o n R d Sutton Steam Plant Rd Sutton Lake Rd U S H w y 421 CAPEFEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND FIGURE 1-2SITE LAYOUT MAPL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CAROLINADRAWN BY: A. ROBINSONPROJECT MANAGER: P. WALDREPCHECKED BY: P. WALDREP DATE: 08/29/2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\SUTTON_SITE_MAP_11X17_v1.mxd 500 0 500 1,000250 IN FEET GRAPHIC SCALE LEGEND MONITORING WELL (SURVEYED) COMPLIANCE MONITORING WELL(SURVEYED) CAMA MONITORING WELL(SURVEYED) BACKGROUND COMPLIANCEMONITORING WELL (SURVEYED) ABANDONED WELL PRIVATE WATER SUPPLY WELL ASH BASIN COMPLIANCE BOUNDARY HALF-MILE OFFSET FROMCOMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTONPLANT SITE BOUNDARY NOTES:2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDANRCS GEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTHCAROLINA STATE PLANE COORDINATE SYSTEM FIPS 3200 MW-31B MW-7AMW-7B MW-27C S-8 WELL 1S-8R WELL 1S-8R POST FILTERS-8R WELL 2 S-2 PUMPHOUSES-2 WELL 1&2 R o y m a c D r M e t r o C i r T r a n s c o m C t Fre dric k s o n R d Sutton Steam Plant Rd U S H w y 421 Sutton Lake Rd S-1 NEW WELL S-8 WELL 2 S-3 S-4 S-12 S-6 S-7 S-17 S-18 S-1 OLD WELL FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND DRAWN BY: A. ROBINSONPROJECT MANAGER: P. WALDREPCHECKED BY: P. WALDREP DATE: 08/23/2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\SUTTON_NCDEQ_WATER_SUPPLY_WELLS.mxd GRAPHIC SCALE5000500 1,000250 IN FEET pH Temperature Specific Conductance Dissolved oxygen Turbidity Alkalinity Aluminum Antimony Arsenic Barium Beryllium Bicarbonate Alkalinity Boron Cadmium Calcium Carbonate Alkalinity Chloride Chromium (VI)Chromium Cobalt Copper Iron Lead Magnesium Manganese Mercury Molybdenum Nickel Potassium Selenium Sodium Strontium Sulfate Thallium Total Dissolved Solids Total Suspended Solids Vanadium Zinc S.U.Deg C umhos/cm mg/l NTUs mg/l ug/l ug/l ug/l ug/l ug/l mg/l ug/l ug/l mg/l mg/l mg/l ug/l ug/l ug/l ug/l ug/l ug/l mg/l ug/l ug/l ug/l ug/l mg/l ug/l mg/l ug/l mg/l ug/l mg/l mg/l ug/l ug/l 6.5-8.5 NE NE NE NE NE NE 1*10 700 4*NE 700 2 NE NE 250 0.07^10 1*1000 300 15 NE 50 1 NE 100 NE 20 NE NE 250 0.2*500 NE 0.3*1000 Sample ID Sample Collection DateS-1 New Well 02/04/2015 6.8 17 63 9.22 <1 1.99 142 <1 <5 48 <1 1.99 24 <2 4.28 0 8.02 <100 <5 <1 <3 70 4 1.04 23 <0.2 <5 <5 0.993 <5 4.49 25 10.1 <0.2 37.5 <2.5 <3 11 S-1 Old Well 02/04/2015 5.6 19 53 6.24 <1 2.59 253 <1 <5 37 <1 2.59 15 <2 3.72 0 4.87 <100 <5 <1 3 58 <3 0.602 25 <0.2 <5 <5 0.716 <5 2.9 16 9.67 <0.2 32 <2.5 3 15 S-2 Pumphouse 03/05/2015 5.4 22 263 5.8 0.5 4 110 <1 <1 46 <1 4 690 <1 19.9 <1 25 <20 <1 2 3 24 <1 3.14 295 <0.4 <1 <100 3.28 <10 18.3 365 69 <1 159 2.5 <1 <10 S-2 Well 1 & 2 03/05/2015 6.0 19 506 6.6 5.3 36 45 <1 <1 47 <1 36 160 <1 60.7 <1 25 <20 <1 2 4 635 <1 5.46 278 <0.4 <1 <100 9.98 <10 24.1 287 160 <1 326 2.5 <1 15 S-3 03/02/2015 6.4 20 291 5.09 0.5 3 42 <1 <1 <400 <1 3 600 <1 21.4 <1 20 <20 <1 2 1 189 <1 3.43 274 <0.4 <10 <10 4.11 <10 20.2 302 76 <1 185 3.1 <1 <10 S-4 03/11/2015 5.6 17 194 5 1.3 18 41 <1 <1 <400 <2 18 180 <1 20 <2 13 <20 <1 <1 218 318 5 1.61 23 <0.4 <1 <100 2.35 <10 10.4 93 41 <1 125 2.5 <1 <1000 S-6 02/04/2015 5.1 19 47 6.61 <1 <1 280 <1 <5 72 <1 0 12 <2 2.63 0 2.95 <100 <5 <1 <3 <20 <3 0.628 28 <0.2 <5 <5 1.05 <5 1.78 20 8.91 <0.2 25.5 <2.5 <3 10 S-7 02/25/2015 5.6 19 96 4.52 <1 9.95 157 <1 <5 31.5 <1 9.95 20.7 <2 11.6 <1 4.41 <100 <5 <1 <3 <20 <3 1.45 18.4 <0.2 <5 <5 1.4 <5 2.9 26.7 11.9 <0.2 63 <2.5 <0.3 6.5 S-8 Well 1 03/05/2015 5.9 22 54 5.8 0.6 7 21 <1 2 24 <1 7 20 <1 4.17 <1 <5 <20 <1 3 5 1940 <1 <1 74 <0.4 <1 <100 <1 <1 2.82 16 <15 <1 30 2.5 <1 16 S-8 Well 1 05/27/2015 5.9 22 55 5.73 <1 8.96 39 <1 <5 16 <1 8.96 17 <2 3.84 <1 3.39 <20 <5 3 <3 1950 <3 0.443 68 <0.2 <5 <5 0.536 <5 2.13 14 5.84 <0.2 20.7 <2.5 <0.3 6 S-8 Well 1 Post Filter 05/27/2015 5.8 28 61 6.98 <1 7.96 18 <1 <5 17 <1 7.96 19 <2 3.73 <1 3.31 <20 <5 3 <3 2070 <3 0.435 68 <0.2 <5 <5 0.553 <5 2.09 14 5.33 <0.2 24 <2.5 <0.3 5 S-8 Well 2 03/05/2015 5.2 19 156 4.1 0.2 1 70 <1 <1 45 <1 1 250 <1 9.5 <1 19 <20 <1 4 8 120 <1 2.19 142 <0.4 <1 <100 1.79 <1 11.8 133 33 <1 85 2.5 <1 15 S-8 Well 2 05/27/2015 5.3 22 156 7.85 <1 10.5 68 <1 <5 45 <1 10.5 210 <2 10.1 <1 18.2 <20 <5 4 <3 94 <3 2.5 159 <0.2 <5 <5 2.13 <5 11.5 141 34.6 <0.2 77.3 <2.5 <0.3 8 S-12 03/18/2015 6.8 17 178 8.45 1.37 42.8 109 <1 <5 53 <1 42.8 34 <2 26.4 <1 5.29 <100 <5 <1 <3 254 <3 1.8 66 <0.2 <5 <5 1.2 <5 3.08 70 28 <0.2 104 <2.5 <0.3 <5 S-17 04/30/2015 NM NM NM 8.4 <1 0 129 <1 <0.001 42 <0.25 1.23 62 <1 10.3 0 15.2 NA <1 <0.001 33 33 <0.003 1.34 69 <0.0002 <0.001 <1 1.41 <0.01 6.35 45 23 <0.001 75 <1 <0.005 <10 S-18 05/19/2015 6.3 24 100 6.6 <1 15.9 24 <1 <5 20 NA 15.9 26 <2 12.7 <1 4.05 <20 <5 <1 <3 30 <3 0.724 18 <0.2 <5 <5 1.22 <5 3.03 29 16.1 <0.2 59.5 <2.5 1.2 <5 Analytical Parameter Field Parameters NC2L Standard Reporting Units Analytical Results Notes: - Bold highlighted concentration indicates exceedance of the 15A NCAC 02L Standard, Appendix 2, April 1, 2013. SU = Standard Units * - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April, 1, 2013. umhos/cm = micro mhos per centimeter < = concentration not detected at or above the reporting limit. NTU = Nephelometric Turbidity Unit ^ = NC DHHS Health Screening Level. mg/L = milligrams per liter NE = Not established ug/l = micrograms per liter Deg C = Degrees Celsius 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCS GEOSPATIAL DATA GATEWAY (https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA STATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD 83/2011). FIGURE 1-3NCDEQ WATER SUPPLY SAMPLELOCATIONS AND ANALYTICAL RESULTSL.V. SUTTON ENERGY COMPL EXWILMINGTON, NORTH CAROLINA LEGEND WATER SUPPLY WELL SAMPLED BY NCDEQ WATER SUPPLY WELL NOT SAMPLED ASH BASIN COMPLIANCE BOUNDARY HALF-MILE OFFSET FROM COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMERASH DISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION 7 0 7 03500 7 0 0 7 0 7 0 70 CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND ABMW-2S226 AW-4BND AW-5BND AW-6BND AW-8BND AW-9BND MW-4ND MW-4A67 MW-5AND MW-5BND MW-16114 MW-22BND MW-23BND MW-24B98 MW-27B71 MW-28BND MW-31B55 MW-36B99 MW-37BND MW-38BND MW-39BND MW-40B99 SMW-1B175 SMW-2BND SMW-5B356 SMW-6B57 ABMW-1S3500 SMW-3B50 AW-1BND AW-2BND AW-3BND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE NORTH CAROLINA 2L FOR BORON IS 700 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR BORON IS 70 μg/L. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-4ISOCONCENTRATION MAPBORON IN SURFICIAL UPPER GROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINA DRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND NORTH CAROLINA 2L CONTOUR INFERRED NORTH CAROLINA 2L CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL BORON CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION ABMW-2SND AW-4BND AW-5B1.71 AW-6BND AW-8B2.25 AW-9BND MW-4ND MW-4AND MW-5A1.11 MW-5B3.42 MW-16ND MW-22BND MW-23BND MW-24B2.08 MW-27B1.09 MW-28BND MW-31BND MW-36BND MW-37BND MW-38BND MW-39BND MW-40B1.96 SMW-1BND SMW-2BND SMW-5BND SMW-6BND ABMW-1SND AW-1B1.44 AW-2BND AW-3BND SMW-3BND CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FORCOBALT IS 1 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR COBALT IS 5 μg/L. NO CONTOURS SHOWN DUE TO DETECTED CONCENTRATIONS AT ORBELOW PROVISIONAL BACKGROUND LEVEL. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA LEGEND FIGURE 1-5ISOCONCENTRATION MAPCOBALT IN SURFICIAL UPPER GROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINA DRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND IMAC CONTOUR INFERRED IMAC CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL COBALT CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION 1 0 0 0 0 3 0 0 0 1 5 0 0 3 0 0 0 1 5 0 0 1500 3 0 0 0 1 5 0 0 3 0 0 0 1 5 0 0 1500 ABMW-2S14600 AW-4B34 AW-5B374 AW-6BND AW-8B3060 AW-9B250 MW-4154 MW-4A53 MW-5A789 MW-5B30 MW-16760 MW-22BND MW-23B16 MW-24B942 MW-27BND MW-28B49 MW-31B5020 MW-36B35 MW-37B10 MW-38B251 MW-39B5090 MW-40B9280 SMW-1B69 SMW-2B2130 SMW-5B43 SMW-6B14 ABMW-1S317 SMW-3B1310 AW-2B1320 AW-1B2680 AW-3B6290 CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE NORTH CAROLINA 2L FOR IRON IS 300 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR IRON IS 1500 μg/L. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-6ISOCONCENTRATION MAPIRON IN S URFICIAL UPP ER GRO UNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINA DRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND NORTH CAROLINA 2L CONTOUR INFERRED NORTH CAROLINA 2L CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL IRON CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION 4 0 0 ABMW-2S597 AW-4B7 AW-5B107 AW-6B25 AW-8B21 AW-9B8 MW-433 MW-4A86 MW-5A26 MW-5B28 MW-1613 MW-22B7 MW-23B8 MW-24B157 MW-27B30 MW-28B73 MW-31B34 MW-36BND MW-37BND MW-38B36 MW-39B72 MW-40B70 SMW-1B6 SMW-2B48 SMW-5B43 SMW-6B29 ABMW-1S77 AW-3B13 SMW-3B91 AW-1B105 AW-2B204 CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE NORTH CAROLINA 2L FOR MANGANESE IS 50 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR MANGANESE IS 400 μg/L. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-7ISOCONCENTRATION MAPMANGANESE IN SURFICIAL UPPERGROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINADRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND NORTH CAROLINA 2L CONTOUR INFERRED NORTH CAROLINA 2L CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL MANGANESE CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION 6 0 1 0 0 0 6 0 100 1 0 0 60 5000 6 0 100 1 0 0 6 0 60 ABMW-2S1610 AW-4B12 AW-5B6 AW-6B47 AW-8BND AW-9B11 MW-455 MW-4A63 MW-5AND MW-5B7 MW-1671 MW-22B11 MW-23B285 MW-24B107 MW-27B80 MW-28B41 MW-31B79 MW-36B159 MW-37BND MW-38B7 MW-39B22 MW-40B93 SMW-1B75 SMW-2B46 SMW-5B265 SMW-6B38 ABMW-1S5750 AW-1B8 AW-2B10 SMW-3B82 AW-3BND CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE REPORTING DETECTION LIMIT (RDL) OF STRONTIUM IS <5 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR STRONTIUM IS 60 μg/L. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-8ISOCONCENTRATION MAPSTRONTIUM IN SURFICIAL UPPERGROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINADRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND STANDARD CONTOUR INFERRED STANDARD CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL STRONTIUM CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION ABMW-2S260 AW-4B35 AW-5B35 AW-6B33 AW-8BND AW-9BND MW-4100 MW-4A140 MW-5AND MW-5BND MW-1692 MW-22BND MW-23B34 MW-24BND MW-27B41 MW-28B25 MW-31B40 MW-36B69 MW-37BND MW-38B25 MW-39B54 MW-40B72 SMW-1B120 SMW-2B140 SMW-5B120 SMW-6B82 ABMW-1S680 AW-3B29 AW-1B44 SMW-3B250 AW-2BND CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE NORTH CAROLINA 2L FOR TOTAL DISSOLVED SOLIDS IS 500 mg/L. THE PROVISIONAL BACKGROUND LEVEL FOR TDS IS 700 mg/L. NO CONTOURS SHOWN DUE TO DETECTED CONCENTRATIONS AT ORBELOW PROVISIONAL BACKGROUND LEVEL. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-9ISOCONCENTRATION MAPTOTAL DISSOLVED SOLIDS IN SURFICIAL UPPERGROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINADRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND NORTH CAROLINA 2L CONTOUR INFERRED NORTH CAROLINA 2L CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL DISSOLVED SOLIDS (TDS) (mg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< &< &<&< &<&< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION ABMW-2S0.819 AW-4BND AW-5BND AW-6B0.53 AW-8BND AW-9B0.479 MW-41.96 MW-4A1.93 MW-5AND MW-5BND MW-161.87 MW-22BND MW-23B0.457 MW-24B0.444 MW-27BND MW-28B0.416 MW-31BND MW-36B1.12 MW-37BND MW-38BND MW-39B2.04 MW-40B0.314 SMW-1BND SMW-2B1.59 SMW-5B0.639 SMW-6BND ABMW-1S5.08 AW-3B0.427 AW-1BND AW-2BND SMW-3BND CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FORVANADIUM IS 0.3 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR VANADIUM IS 6 μg/L. NO CONTOURS SHOWN DUE TO DETECTED CONCENTRATIONS AT ORBELOW PROVISIONAL BACKGROUND LEVEL. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA LEGEND FIGURE 1-10ISOCONCENTRATION MAPVANADIUM IN SURFICIAL UPPERGROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINADRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND IMAC CONTOUR INFERRED IMAC CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL VANADIUM CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMERASH DISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION 1 0 0 0 2 0 0 0 6 0 2000 60 1 0 0 0 60 1 0 0 0 6 0 7 0 0 7 0 0 60 ABMW-2D677 AW-4C1260 AW-5CND AW-8CND AW-9C152 MW-4BND MW-5CND MW-7C279 MW-11ND MW-121210 MW-16D444 MW-21C1070 MW-22C2650 MW-23C938 MW-24C1030 MW-27C459 MW-28CND MW-31C1260 MW-32C87 MW-33CND MW-36C529 MW-37CND MW-38C384 MW-39CND MW-40C557 S-1NewWell24 S-1 OldWell15 S-2 Pumphouse690 S-2Well 1160 S-3600 S-4180 S-612 S-720.7 S-8Well117 S-8Well 2210 S-1234 S-1762 S-1826 SMW-1C706 SMW-2C225 SMW-5C345 SMW-6C298 MW-191620 ABMW-1S3500 SMW-4C85 AW-1C98 SMW-3C417 AW-3C1370 AW-2CND CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE NORTH CAROLINA 2L FOR BORON IS 700 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR BORON IS 60 μg/L. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-11ISOCONCENTRATION MAPBORON IN SURFICIAL LOWER GROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINA DRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND NORTH CAROLINA 2L CONTOUR INFERRED NORTH CAROLINA 2L CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL BORON CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION 5 5 5 5 5 5 5 ABMW-2D2.69 AW-4C7.09AW-5CND AW-8CND AW-9CND MW-4BND MW-5CND MW-7CND MW-11ND MW-121.08 MW-16D5.71 MW-21C5.02 MW-22C9.43 MW-23C6.3 MW-24C15.5 MW-27C1.76 MW-28CND MW-31C2.27 MW-32CND MW-33CND MW-36C17.2 MW-37C2.04 MW-38C3.58 MW-39C2.93 MW-40C8.39 S-1 NewWellND S-1 OldWellND S-2Pumphouse2 S-2 Well12 S-32 S-4ND S-6ND S-7ND S-8 Well13 S-8 Well24 S-12ND S-17ND S-18ND SMW-1C2.58 SMW-2C12.3 SMW-5C1.25 SMW-6C6.5 MW-192.41 ABMW-1SND AW-3C6.91 SMW-3C9.21 AW-1CND AW-2CND SMW-4CND CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FORCOBALT IS 1 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR COBALT IS 5 μg/L. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-12ISOCONCENTRATION MAPCOBALT IN SURFICIAL LOW ER GROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINA DRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND IMAC CONTOUR INFERRED IMAC CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL COBALT CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION 6 5 0 0 6 5 0 0 6 5 0 0 6 5 0 0 ABMW-2D1300 AW-4C1170 AW-5C65 AW-8C131 AW-9C155 MW-4B4010 MW-5C12 MW-7C86 MW-11487 MW-12667 MW-16D1510 MW-21C3320 MW-22C237 MW-23C61 MW-24C2770 MW-27C44 MW-28C10 MW-31C3160 MW-32C18 MW-33C25 MW-36C965 MW-37C9410 MW-38C445 MW-39C7330 MW-40C86 S-1 NewWell70 S-1 OldWell58 S-2Pumphouse24 S-2Well 1635 S-3189 S-4318 S-6ND S-7ND S-8Well 11950 S-8Well 294 S-12254 S-1733 S-1830 SMW-1C232 SMW-2C302 SMW-5C164 SMW-6C500 MW-19416 ABMW-1S317 AW-1C470 SMW-3C1510 AW-2C7610 SMW-4C9660 AW-3C11300 CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE NORTH CAROLINA 2L FOR IRON IS 300 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR IRON IS 6500 μg/L. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-13ISOCONCENTRATION MAPIRON IN S URFICIAL LOW ER GROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINA DRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND NORTH CAROLINA 2L CONTOUR INFERRED NORTH CAROLINA 2L CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL IRON CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION 1100 ABMW-2D131 AW-4C718 AW-5C17 AW-8C21 AW-9C67 MW-4B122 MW-5C89 MW-7C85 MW-1123 MW-12462 MW-16D234 MW-21C358 MW-22C825 MW-23C86 MW-24C958 MW-27C178 MW-28C11 MW-31C1720 MW-32C29 MW-33C36 MW-36C306 MW-37C250 MW-38C676 MW-39C128 MW-40C191 S-1 NewWell23 S-1 OldWell25 S-2Pumphouse295 S-2Well 1278 S-3274 S-423 S-628 S-718.4 S-8Well 168 S-8Well 2159 S-1266 S-1769 S-1818 SMW-1C658 SMW-2C326 SMW-5C80 SMW-6C370 MW-19296 ABMW-1S77 AW-2C57 SMW-4C132 AW-1C179 SMW-3C584 AW-3C1830 CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE NORTH CAROLINA 2L FOR MANGANESE IS 50 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR MANGANESE IS 1100μg/L. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-14ISOCONCENTRATION MAPMANGANESE IN SURFICIAL LOWERGROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINADRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND NORTH CAROLINA 2L CONTOUR INFERRED NORTH CAROLINA 2L CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL MANGANESE CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION 2.5 2 .5 2.5 2 .5 2 0 ABMW-2DND AW-4CND AW-5CND AW-8CND AW-9CND MW-4BND MW-5CND MW-7CND MW-11ND MW-12ND MW-16DND MW-21CND MW-22CND MW-23C10.3 MW-24CND MW-27C61.9 MW-28CND MW-31CND MW-32CND MW-33CND MW-36C49.1 MW-37CND MW-38C21.8 MW-39CND MW-40C26.6 S-1 NewWellND S-1 OldWellND S-2PumphouseND S-2Well 1ND S-3ND S-4ND S-6ND S-7ND S-8Well 1ND S-8Well 2ND S-12ND S-17ND S-18ND SMW-1CND SMW-2CND SMW-5CND SMW-6CND MW-19ND ABMW-1SND AW-1C2.6 AW-2CND AW-3CND SMW-3CND SMW-4CND CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE NORTH CAROLINA 2L FOR SELENIUM IS 20 mg/L. THE PROVISIONAL BACKGROUND LEVEL FOR SELENIUM IS 2.5 μg/L. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-15ISOCONCENTRATION MAPSELENIUM IN SURFICIAL LOWERGROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINADRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND NORTH CAROLINA 2L CONTOUR INFERRED NORTH CAROLINA 2L CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL SELENIUM CONCENTRATION (mg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION 1 5 0 1 5 0 1000 1 5 0 5 0 0 0 1 0 0 0 1000 1 5 0 1 5 0 ABMW-2D1150 AW-4C858 AW-5C28 AW-8C33 AW-9C72 MW-4B171 MW-5C20 MW-7C124 MW-1116 MW-121260 MW-16D146 MW-21C836 MW-22C1900 MW-23C788 MW-24C474 MW-27C229 MW-28C44 MW-31C587 MW-32C54 MW-33C31 MW-36C388 MW-37C20 MW-38C134 MW-39C20 MW-40C353 S-1 NewWell25 S-1 OldWell16 S-2 Pumphouse365 S-2Well 1287 S-3302 S-493 S-620 S-726.7 S-8Well 114 S-8Well 2141 S-1270 S-1745 S-1829 SMW-1C377 SMW-2C154 SMW-5C241 SMW-6C178 MW-191270 ABMW-1S5750 AW-2C12 SMW-4C54 AW-1C62 SMW-3C218 AW-3C672 CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE REPORTING DETECTION LIMIT (RDL) OF STRONTIUM IS <5 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR STRONTIUM IS 150 μg/L. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-16ISOCONCENTRATION MAPSTRONTIUM IN SURFICIAL LOWERGROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINADRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND STANDARD CONTOUR INFERRED STANDARD CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL STRONTIUM CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMERASH DISPOSALAREA 1971 ASHBASIN 1984ASH BASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION 5 0 0 3 0 0 5 0 0 300 3 0 0 ABMW-2D310 AW-4C310 AW-5C31 AW-8C32 AW-9C66 MW-4B260 MW-5C48 MW-7C58 MW-11ND MW-12310 MW-16D360 MW-21C180 MW-22C420 MW-23C140 MW-24C440 MW-27C230 MW-28CND MW-31C460 MW-32C35 MW-33CND MW-36C320 MW-37C77 MW-38C250 MW-39C49 MW-40C280 S-1 NewWell37.5 S-1 OldWell32 S-2Pumphouse159 S-2Well 1326 S-3185 S-4125 S-625.5 S-763 S-8Well 120.7 S-8Well 277.3 S-12104 S-1775 S-1859.5 SMW-1C270 SMW-2C130 SMW-5C120 SMW-6C150 MW-19280 ABMW-1S680 AW-2C38 AW-1C84 SMW-4C110 SMW-3C190 AW-3C510 CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE NORTH CAROLINA 2L FOR TOTAL DISSOLVED SOLIDS IS 500 mg/L. THE PROVISIONAL BACKGROUND LEVEL FOR TDS IS 300 mg/L. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-17ISOCONCENTRATION MAPTOTAL DISSOLVED SO LIDS IN SURFICIALLOWER GROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINADRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND NORTH CAROLINA 2L CONTOUR INFERRED NORTH CAROLINA 2L CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL DISSOLVED SOLIDS (TDS) (mg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION 3 1.5 3 1.5 1.5 3 ABMW-2D0.67 AW-4C0.656 AW-5CND AW-8CND AW-9C0.357 MW-4BND MW-5C0.384 MW-7C0.611 MW-111.11 MW-120.457 MW-16D3.12 MW-21C1.11 MW-22C0.335 MW-23C0.691 MW-24C0.613 MW-27CND MW-28C0.447 MW-31C0.6 MW-32CND MW-33C0.479 MW-36C2.82 MW-37C1.09 MW-38CND MW-39C1.61 MW-40CND S-1 NewWellND S-1 OldWell3 S-2PumphouseND S-2Well 1ND S-3ND S-4ND S-6ND S-7ND S-8Well 1ND S-8Well 2ND S-12ND S-17ND S-181.2 SMW-1C1.02 SMW-2C0.658 SMW-5CND SMW-6C1.43 MW-191.51 ABMW-1S5.08 AW-3C0.75 SMW-4C0.803 AW-1CND AW-2CND SMW-3CND CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FORVANADIUM IS 0.3 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR VANADIUM IS 1.5 μg/L. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-18ISOCONCENTRATION MAPVANADIUM IN SURFICIAL LOWERGROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINADRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND IMAC CONTOUR INFERRED IMAC CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL VANADIUM CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &<&< &< &<&< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION AW-5D334 AW-6D880 AW-7D772 AW-9D626 MW-5CD1150 MW-5D3010 MW-23D886 MW-37CDND MW-37D146 MW-38D1630 MW-39D1080 MW-40D1210 PZ-6D784 PZ-10D548 SMW-6D1030 ABMW-1D167 AW-2D666 CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE NORTH CAROLINA 2L FOR BORON IS 700 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR BORON IS 3000 μg/L. NO CONTOURS SHOWN DUE TO DETECTED CONCENTRATIONS AT ORBELOW PROVISIONAL BACKGROUND LEVEL. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-19ISOCONCENTRATION MAPBORON IN PEE DE E UPPER GROUNDWATE RL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINA DRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND NORTH CAROLINA 2L CONTOUR INFERRED NORTH CAROLINA 2L CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL BORON CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &<&< &< &<&< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION AW-5DND AW-6DND AW-7DND AW-9DND MW-5CDND MW-5DND MW-23DND MW-37CDND MW-37DND MW-38DND MW-39DND MW-40DND PZ-6DND PZ-10DND SMW-6DND ABMW-1DND AW-2DND CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FORCOBALT IS 1 μg/L. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-20ISOCONCENTRATION MAPCOBALT IN PE E DEE UPPE R GROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINA DRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND IMAC CONTOUR INFERRED IMAC CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL COBALT CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &<&< &< &<&< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION AW-5D82 AW-6D743 AW-7D110 AW-9D277 MW-5CD51 MW-5D136 MW-23D145 MW-37CD503 MW-37D1550 MW-38D79 MW-39D216 MW-40D169 PZ-6D567 PZ-10D606 SMW-6D499 ABMW-1D475 AW-2D438 CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE NORTH CAROLINA 2L FOR IRON IS 300 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR IRON IS 1500 μg/L. NO CONTOURS SHOWN DUE TO DETECTED CONCENTRATIONS AT ORBELOW PROVISIONAL BACKGROUND LEVEL. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-21ISOCONCENTRATION MAPIRON IN PEE DEE UPPER GROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINA DRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND NORTH CAROLINA 2L CONTOUR INFERRED NORTH CAROLINA 2L CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL IRON CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &<&< &< &<&< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION 5 0 5 0 2 0 50 20 5 0 2 0 20 2 0 2 0 AW-5D40 AW-6D21 AW-7D13 AW-9D47 MW-5CD6 MW-5D11 MW-23D17 MW-37CD11 MW-37D23 MW-38D14 MW-39D43 MW-40D24 PZ-6D68 PZ-10D53 SMW-6D83 ABMW-1D82 AW-2D59 CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE NORTH CAROLINA 2L FOR MANGANESE IS 50 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR MANGANESE IS 20 μg/L. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-22ISOCONCENTRATION MAPMANGANESE IN PEE DEE UPPERGROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINADRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND NORTH CAROLINA 2L CONTOUR INFERRED NORTH CAROLINA 2L CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL MANGANESE CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &<&< &< &<&< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION AW-5D84 AW-6D81 AW-7D79 AW-9D127 MW-5CD125 MW-5D232 MW-23D93 MW-37CD77 MW-37D90 MW-38D192 MW-39D182 MW-40D163 PZ-6D125 PZ-10D131 SMW-6D107 ABMW-1D179 AW-2D107 CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE REPORTING DETECTION LIMIT (RDL) OF STRONTIUM IS <5 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR STRONTIUM IS 200 μg/L. NO CONTOURS SHOWN DUE TO DETECTED CONCENTRATIONS AT ORBELOW PROVISIONAL BACKGROUND LEVEL 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-23ISOCONCENTRATION MAPSTRONTIUM IN P EE DEE UPP ER GROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINA DRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND STANDARD CONTOUR INFERRED STANDARD CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL STRONTIUM CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &<&< &< &<&< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION AW-5D340 AW-6D660 AW-7D480 AW-9D640 MW-5CD840 MW-5D1700 MW-23D560 MW-37CD180 MW-37D340 MW-38D1300 MW-39D1000 MW-40D1000 PZ-6D120 PZ-10D570 SMW-6D760 ABMW-1D350 AW-2D510 CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE NORTH CAROLINA 2L FOR TOTAL DISSOLVED SOLIDS IS 500 mg/L. THE PROVISIONAL BACKGROUND LEVEL FOR TDS IS 1700 mg/L. NO CONTOURS SHOWN DUE TO DETECTED CONCENTRATIONS AT ORBELOW PROVISIONAL BACKGROUND LEVEL. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-24ISOCONCENTRATION MAPTOTAL DISSOLVED SO LIDS IN PEE DEE UPPERGROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINADRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND NORTH CAROLINA 2L CONTOUR INFERRED NORTH CAROLINA 2L CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL DISSOLVED SOLIDS (TDS) (mg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &<&< &< &<&< &< &< &< &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION AW-5DND AW-6D1.12 AW-7D0.71 AW-9DND MW-5CDND MW-5DND MW-23DND MW-37CD3.86 MW-37D1.39 MW-38DND MW-39DND MW-40DND PZ-6D0.875 PZ-10D0.725 SMW-6D1.57 ABMW-1D0.642 AW-2DND CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FORVANADIUM IS 0.3 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR VANADIUM IS 3.5 μg/L. NO CONTOURS SHOWN DUE TO DETECTED CONCENTRATIONS AT ORBELOW PROVISIONAL BACKGROUND LEVEL. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA LEGEND FIGURE 1-25ISOCONCENTRATION MAPVANADIUM IN PEE DE E UPPER GROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINA DRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND IMAC CONTOUR INFERRED IMAC CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL VANADIUM CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION 2000 2 0 0 0 1 4 0 0 AW-5E1830 AW-6E2420 MW-5E1420 MW-23E2420 MW-37E1370 CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE NORTH CAROLINA 2L FOR BORON IS 700 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR BORON IS 1400 μg/L. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-26ISOCONCENTRATION MAPBORON IN PEE DE E LOWE R G ROUNDWATE RL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINA DRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND NORTH CAROLINA 2L CONTOUR INFERRED NORTH CAROLINA 2L CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL BORON CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION AW-5END AW-6END MW-5END MW-23END MW-37END CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FORCOBALT IS 1 μg/L. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-27ISOCONCENTRATION MAPCOBALT IN PEE DEE LOWER GROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINA DRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND IMAC CONTOUR INFERRED IMAC CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL COBALT CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION 2 0 0 2 0 0 2 0 0 2 0 0 AW-5E102 AW-6E55 MW-5E237 MW-23E251 MW-37E239 CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE NORTH CAROLINA 2L FOR IRON IS 300 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR IRON IS 200 μg/L. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-28ISOCONCENTRATION MAPIRON IN PEE DEE LOWER GROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINA DRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND NORTH CAROLINA 2L CONTOUR INFERRED NORTH CAROLINA 2L CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL IRON CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION AW-5END AW-6E9 MW-5E7 MW-23E6 MW-37E10 CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE NORTH CAROLINA 2L FOR MANGANESE IS 50 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR MANGANESE IS 10 μg/L. NO CONTOURS SHOWN DUE TO DETECTED CONCENTRATIONS AT ORBELOW PROVISIONAL BACKGROUND LEVEL. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-29ISOCONCENTRATION MAPMANGANESE IN PEE DEE LOWERGROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINADRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND NORTH CAROLINA 2L CONTOUR INFERRED NORTH CAROLINA 2L CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL MANGANESE CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION AW-5E157 AW-6E150 MW-5E2600 MW-23E114 MW-37E235 CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE REPORTING DETECTION LIMIT (RDL) OF STRONTIUM IS <5 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR STRONTIUM IS 2600 μg/L. NO CONTOURS SHOWN DUE TO DETECTED CONCENTRATIONS AT ORBELOW PROVISIONAL BACKGROUND LEVEL 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-30ISOCONCENTRATION MAPSTRONTIUM IN P EE DEE LOW ERGROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINADRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND STANDARD CONTOUR INFERRED STANDARD CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL STRONTIUM CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION AW-5E1500 AW-6E1500 MW-5E1900 MW-23E1500 MW-37E1100 CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE NORTH CAROLINA 2L FOR TOTAL DISSOLVED SOLIDS IS 500 mg/L. THE PROVISIONAL BACKGROUND LEVEL FOR TDS IS 1900 mg/L. NO CONTOURS SHOWN DUE TO DETECTED CONCENTRATIONS AT ORBELOW PROVISIONAL BACKGROUND LEVEL. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINASTATE PLANE COORDINATE SYSTEM FIPS 3200 (NAD83/2011). LEGEND FIGURE 1-31ISOCONCENTRATION MAPTOTAL DISSOLVED SO LIDS IN PEE DEE LOWERGROUNDWATERL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINADRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND NORTH CAROLINA 2L CONTOUR INFERRED NORTH CAROLINA 2L CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL DISSOLVED SOLIDS (TDS) (mg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR &< &< &< &< &< U S H w y 17 I - 1 4 0 Sutton Lake Rd U S H w y 421 FORMER ASHDISPOSALAREA 1971 ASHBASIN 1984 ASHBASIN(LINED) 1984 ASHBASIN(LINED) 1983EXTENSION AW-5END AW-6E0.403 MW-5E1.05 MW-23E0.864 MW-37E0.528 CAPE FEARRIVER COOLINGPOND COOLINGPOND DRAINAGECHANNEL COOLINGPOND COOLINGPOND COOLINGPOND NOTES:CONCENTRATIONS SHOWN ARE FROM THE MOST RECENT SAMPLINGEVENT FOR EACH MONITORING WELL (JUNE 2015, JANUARY 2016, ORJUNE 2016). WATER SUPPLY WELL SAMPLED WHERE NOTED IN JANUARY, MARCH,OR JULY 2016. THE INTERIM MAXIMUM ALLOWABLE CONCENTRATION (IMAC) FORVANADIUM IS 0.3 μg/L. THE PROVISIONAL BACKGROUND LEVEL FOR VANADIUM IS 1 μg/L. NO CONTOURS SHOWN DUE TO DETECTED CONCENTRATIONS AT ORBELOW PROVISIONAL BACKGROUND LEVEL. 2014 AERIAL ORTHOPHOTOGRAPHY OBTAINED FROM USDA NRCSGEOSPATIAL DATA GATEWAY(https://gdg.sc.egov.usda.gov/GDGOrder.aspx). DRAWING HAS BEEN SET WITH A PROJECTION OF NORTH CAROLINA LEGEND FIGURE 1-32ISOCONCENTRATION MAPVANADIUM IN PEE DE E LOWER GROUNDWATE RL.V. SUTTON ENERGY COMPLEXWILMINGTON, NORTH CARO LINA DRAWN BY: J. ROBERTSPROJECT M ANAGER: P. WALDREPCHECKED BY: B. WYLIE DATE: 08/17 /2016 148 RIVER STREET, SUITE 220GREENVILLE, SOUTH CAROLINA 29601PHONE 864-421-9999www.synterracorp.com P:\Duke Energy Progress.1026\00 GIS BASE DATA\Sutton\Map_Docs\CSA_Supplement\Sutton - Isoconcentration Maps.mxd 600 0 600 1,200300 IN FEET GRAPHIC SCALE &<MONITORING WELL PRIVATE WATER SUPPLY WELL ASH BASIN BOUNDARY ASH BASIN COMPLIANCE BOUNDARY DUKE ENERGY PROGRESS SUTTON PLANT SITE BOUNDARY NOT DETECTED ABOVE REPORTING LIMITND IMAC CONTOUR INFERRED IMAC CONTOUR HIGHEST CONCENTRATION AREA CONTOUR HIGHEST CONCENTRATION AREA CONTOUR INFERRED INTERMEDIATE CONTOUR INTERMEDIATE CONTOUR INFERRED TOTAL VANADIUM CONCENTRATION (μg/L)1 APPROX. PROVISIONAL BACKGROUND CONTOUR INFERRED APPROX. PROVISIONAL BACKGROUND CONTOUR 1 4 8 R I V E R S T R E E T , S U I T E 2 2 0 G R E E N V I L L E , S O U T H C A R O L I N A 2 9 6 0 1 P H O N E 8 6 4 - 4 2 1 - 9 9 9 9 w w w . s y n t e r r a c o r p . c o m P R O J E C T M A N A G E R : L A Y O U T : D R A W N B Y : P E R R Y W A L D R E P D A T E : J O H N C H A S T A I N F I G 1 - 3 3 ( S I T E X S E C T M A P ) 0 8 / 1 0 / 2 0 1 6 0 8 / 3 0 / 2 0 1 6 1 : 1 5 P M P : \ D u k e E n e r g y P r o g r e s s . 1 0 2 6 \ 1 0 8 . S u t t o n A s h B a s i n G W A s s e s s m e n t P l a n \ 1 9 . E G _ C S A S U P \ F i g u r e s \ D E S U T T O N C S A S U P S I T E X - S E C T I O N M A P . d w g F I G U R E 1 - 3 3 S I T E C R O S S - S E C T I O N L O C A T I O N M A P L . V . S U T T O N E N E R G Y C O M P L E X D U K E E N E R G Y P R O G R E S S 8 0 1 S U T T O N S T E A M R O A D W I L M I N G T O N , N O R T H C A R O L I N A DUKE ENERGY PROGRESS PARCEL LINE LEGENDCOMPLIANCE MONITORING WELL (SURVEYED)PIEZOMETER (SURVEYED)CSA MONITORING WELL (SURVEYED)MONITORING WELL (SURVEYED)BACKGROUND COMPLIANCE MONITORING WELL (SURVEYED)CB-1 CB-8 CB-8DGW-4P-101DW-6ABANDONED WELL CCR SURFACE IMPOUNDMENT CCR SURFACE IMPOUNDMENT COMPLIANCE BOUNDARYA B M W - 1 S A B M W - 1 D S M W - 6 D S M W - 5 B S M W - 5 C S M W - 1 B S M W - 1 C A W - 4 B A W - 4 C A W - 5 B A W - 5 C A W - 5 D A W - 5 E A W - 6 B M W - 3 3 C M W - 3 2 C M W - 1 8 M W - 1 9 M W - 2 2 C M W - 2 1 C M W - 2 2 B M W - 2 3 B M W - 2 3 C L A - P Z - 3 L A - P Z - 4 G W P Z - 4 A G W P Z - 4 B G W P Z - 3 A G W P Z - 3 B A W - 1 B A W - 1 C M W - 2 4 B M W - 2 4 C M W - 3 1 C A W - 7 D M W - 3 1 B M W - 1 2 S M W - 2 B S M W - 2 C S M W - 3 B S M W - 3 C M W - 2 8 B M W - 2 8 C M W - 2 8 T L A - P Z - 5 M W - 2 3 E M E T R O C I R C L E F R E D R I C K S O N R D S O L A R F A R M S . T . W O O T E N C O R P O R A T I O N S U T T O N L A K E R D N C H I G H W A Y 4 2 1 S U T T O N L A K E R D NEW ASH POND AREA - LINEDCANALOLD ASH POND A R E A COOLING POND COOLING POND D W - 6 ( S 2 - W E L L 1 ) D W - 6 ( S 2 - W E L L 2 ) D W - 6 ( S 2 - P U M P H O U S E ) R A I L R O A D R O Y M A C D R R A I L R O A D F O R M E R A S H D I S P O S A L A R E A PZ-INT 2 5 0 0 2 5 0 5 0 0 G R A P H I C S C A L E I N F E E T A A ' S M W - 6 B S M W - 6 C A W - 6 D A W - 6 E 1 4 8 R I V E R S T R E E T , S U I T E 2 2 0 G R E E N V I L L E , S O U T H C A R O L I N A 2 9 6 0 1 P H O N E 8 6 4 - 4 2 1 - 9 9 9 9 w w w . s y n t e r r a c o r p . c o m P R O J E C T M A N A G E R : L A Y O U T : D R A W N B Y : P E R R Y W A L D R E P D A T E : J O H N C H A S T A I N F I G 1 - 3 4 ( S E C T I O N A - A ' ) 0 8 / 1 5 / 2 0 1 6 0 8 / 3 0 / 2 0 1 6 1 : 1 6 P M P : \ D u k e E n e r g y P r o g r e s s . 1 0 2 6 \ 1 0 8 . S u t t o n A s h B a s i n G W A s s e s s m e n t P l a n \ 1 9 . E G _ C S A S U P \ F i g u r e s \ D E S U T T O N C S A S U P ( S I T E S E C T I O N ) . d w g V E R T I C A L E X A G G E R A T I O N 5 X A A ' (WEST) ( E A S T ) L I N E R DREDGE DITCH SUTTON LAKE RD GROUNDWATERDIVIDE L. V. SUTTON ENERGY COMPL E X TD -30' ms l . ASH PORE WATER ASH S . T . W O O T E N C O R P ABMW-01DABMW-01S NC HWY 421 RAILROAD CANALTD -62' msl. T D - 3 2 ' m s l . T D - 1 3 0 ' m s l . T D ? T D ? T D ? Z O N E W I T H C O A R S E S A N D S A N D S I L T 0 ' m s l . T D - 9 5 ' m s l . T D - 1 1 ' m s l . GRAVEL ROAD T D - 1 0 ' m s l . T D - 3 1 ' m s l . Z O N E S O F S I L T S A N D S A N D S Z O N E S O F S I L T S A N D S A N D S ABMW-01S & ABMW-01DHAVE BEEN ABANDONED 0 ' m s l . MARSH LIMIT BASED ON 1949AERIAL PHOTOGRAPH LIMIT OF ASH BASED ON 1981 AERIAL PHOTOGRAPH LIMIT OF ASH BASED ON 1981AERIAL PHOTOGRAPH OLD ASH POND AREA GRAVEL ROAD GRAVEL ROAD N E W A S H P O N D A R E A - L I N E D GRAVEL ROAD LIMIT OF POND BASED 1975AERIAL PHOTOGRAPHGENERALIZED GROUNDWATERFLOW DIRECTION G E N E R A L I Z E D G R O U N D W A T E R F L O W D I R E C T I O N A S H P E E D E E F O R M A T I O N Z O N E S O F S I L T S A N D F I N E S A N D S PEE DEE FORMATIONZONES OF SILTS AND FINE SANDS N E W S T R U C T U R A L F I L L COOLING POND CCR SURFACE IMPOUNDMENT COMPLIA N C E B O U N D A R Y CCR SURFACE IMPOUNDME N T DW-6 (S2-WELL1) DW-6 (S2-WELL 2) DW-6 (S2-PUMPHOUSE) SMW-6D MW-12 AW-6E SMW-6C AW-6B SMW-6B MW-23D MW-23C MW-23B MW-23E AW-6D N C D E Q S U P P L Y W E L L S A M P L E I D M O N I T O R I N G W E L L 5 0 0 5 0 1 0 0 V E R T I C A L G R A P H I C S C A L E I N F E E T 2 5 0 0 2 5 0 5 0 0 H O R I Z O N T A L G R A P H I C S C A L E I N F E E T S C R E E N E D I N T E R V A L G R O U N D S U R F A C E W E L L C A S I N G M O N I T O R I N G W E L L S C H E M A T I C G E N E R A L I Z E D W A T E R T A B L E D W - 6 ( S 2 - W E L L 1 ) S M W - 6 B L E G E N D T D - 1 3 ' m s l . T D - 3 1 ' m s l . T D - 8 6 ' m s l . T D - 1 3 3 ' m s l . T D - 1 0 6 ' m s l . FORMER ASHSURFACE CURRENT ASHSURFACE DUE TO ONGOING ASH REMOVALSALINE FRONT ? S A L I N E F R O N T ? SALINE AQUIFER C O N D I T I O N S I N T H E P E E D E E F O R M A T I O N D O C U M E N T E D I N A R E P O R T T I T L E D "Potential Ground w a t e r I m p a c t s o f t h e P r o p o s e d C a r o l i n a s C e m e n t C o m p a n y F a c i l i t y N e a r C a s t l e H a y n e , N o r t h C a r o l i n a " F I G U R E 1 - 3 4 C O N C E P T U A L C R O S S - S E C T I O N A - A ' D U K E E N E R G Y P R O G R E S S L . V . S U T T O N E N E R G Y C O M P L E X W I L M I N G T O N , N O R T H C A R O L I N A A A ' (WEST) ( E A S T ) L I N E R DREDGE DITCH SUTTON LAKE RD CCR SURFACE IMPOUNDMENT COMPLIA N C E B O U N D A R Y CCR SURFACE IMPOUNDME N T L. V. SUTTON ENERGY COMPL E X SMW-6D ASH MW-12 AW-6E S . T . W O O T E N C O R P SMW-6C ABMW-01DABMW-01S NC HWY 421 RAILROAD CANAL DW-6 (S2-WELL1) Z O N E W I T H C O A R S E S A N D S A N D S I L T 0 ' m s l . GRAVEL ROAD AW-6B SMW-6B Z O N E S O F S I L T S A N D S A N D S Z O N E S O F S I L T S A N D S A N D S 0 ' m s l . OLD ASH POND AREA GRAVEL ROAD N E W A S H P O N D A R E A - L I N E D GRAVEL ROAD A S H P E E D E E F O R M A T I O N Z O N E S O F S I L T S A N D F I N E S A N D S PEE DEE FORMATIONZONES OF SILTS AND FINE SANDS 1 4 8 R I V E R S T R E E T , S U I T E 2 2 0 G R E E N V I L L E , S O U T H C A R O L I N A 2 9 6 0 1 P H O N E 8 6 4 - 4 2 1 - 9 9 9 9 w w w . s y n t e r r a c o r p . c o m P R O J E C T M A N A G E R : L A Y O U T : D R A W N B Y : P E R R Y W A L D R E P D A T E : J O H N C H A S T A I N F I G 1 - 3 5 ( B O R O N ) 0 8 / 1 1 / 2 0 1 6 0 8 / 3 0 / 2 0 1 6 1 : 0 8 P M P : \ D u k e E n e r g y P r o g r e s s . 1 0 2 6 \ 1 0 8 . S u t t o n A s h B a s i n G W A s s e s s m e n t P l a n \ 1 9 . E G _ C S A S U P \ F i g u r e s \ D E S U T T O N C S A U P I S O P L E T H ( S E C T I O N A - A ' ) . d w g V E R T I C A L E X A G G E R A T I O N 5 X S M W - 6 B N C D E Q S U P P L Y W E L L S A M P L E I D M O N I T O R I N G W E L L 5 0 0 5 0 1 0 0 V E R T I C A L G R A P H I C S C A L E I N F E E T 2 5 0 0 2 5 0 5 0 0 H O R I Z O N T A L G R A P H I C S C A L E I N F E E T S C R E E N E D I N T E R V A L G R O U N D S U R F A C E W E L L C A S I N G M O N I T O R I N G W E L L S C H E M A T I C G E N E R A L I Z E D W A T E R T A B L E F I G U R E 1 - 3 5 S I T E C R O S S - S E C T I O N A - A ' W I T H B O R O N D U K E E N E R G Y P R O G R E S S L . V . S U T T O N E N E R G Y C O M P L E X W I L M I N G T O N , N O R T H C A R O L I N A L E G E N D N O T S A M P L E D B O R O N C O N C E N T R A T I O N I N g / L N S 2 9 8 B O R O N 2 L V A L U E = 7 0 0 g / L B O R O N I S O P L E T H I N g / L < 5 0 N A N O T A N A L Y Z E D BORON ISOPLETH CONTOURS BASED ON INTERPOLATION OF SITE WIDE DATA.CONCENTRATIONS SHOWN REFLECT MOST RECENT ANALYTICAL DATA COLLECTED (SEE APPENDIX A)SAMPLE DATES:ISOPLETH NOTE: MW-23D MW-23C MW-23B MW-23E AW-6D FORMER ASHSURFACE CURRENT ASHSURFACE DUE TO ONGOING ASH REMOVAL DW-6 (S2-WELL 2) DW-6 (S2-PUMPHOUSE) ZONE WITH COARSE SANDSAND SILT 9 3 8 8 8 6 2 , 4 2 0 2 5 0 1 , 2 1 0 8 8 0 2 , 4 2 0 5 9 2 9 8 1 , 0 3 0 1 6 0 SALINE FRONT ? 1 , 0 0 0 S A L I N E F R O N T ? 7 0 0 3,5001671,000 700 700SALINE AQUIFER C O N D I T I O N S I N T H E P E E D E E F O R M A T I O N D O C U M E N T E D I N A R E P O R T T I T L E D "Potential Ground w a t e r I m p a c t s o f t h e P r o p o s e d C a r o l i n a s C e m e n t C o m p a n y F a c i l i t y N e a r C a s t l e H a y n e , N o r t h C a r o l i n a " COOLING PONDCOOLING POND RANGESFROM 184 T0 210CAPE FEAR RIVER <50 6 9 0 N S D W - 6 ( S 2 - W E L L 1 ) A A ' (WEST) ( E A S T ) L I N E R COOLING PONDDREDGE DITCH SUTTON LAKE RD CCR SURFACE IMPOUNDMENT COMPLIA N C E B O U N D A R Y CCR SURFACE IMPOUNDME N T L. V. SUTTON ENERGY COMPL E X SMW-6D ASH MW-12 AW-6E S . T . W O O T E N C O R P SMW-6C ABMW-01DABMW-01S NC HWY 421 RAILROAD CANAL DW-6 (S2-WELL1) Z O N E W I T H C O A R S E S A N D S A N D S I L T 0 ' m s l . GRAVEL ROAD AW-6B SMW-6B Z O N E S O F S I L T S A N D S A N D S Z O N E S O F S I L T S A N D S A N D S 0 ' m s l . OLD ASH POND AREA GRAVEL ROAD N E W A S H P O N D A R E A - L I N E D GRAVEL ROAD A S H P E E D E E F O R M A T I O N Z O N E S O F S I L T S A N D F I N E S A N D S PEE DEE FORMATIONZONES OF SILTS AND FINE SANDS 1 4 8 R I V E R S T R E E T , S U I T E 2 2 0 G R E E N V I L L E , S O U T H C A R O L I N A 2 9 6 0 1 P H O N E 8 6 4 - 4 2 1 - 9 9 9 9 w w w . s y n t e r r a c o r p . c o m P R O J E C T M A N A G E R : L A Y O U T : D R A W N B Y : P E R R Y W A L D R E P D A T E : J O H N C H A S T A I N F I G 1 - 3 6 ( C O B A L T ) 0 8 / 1 1 / 2 0 1 6 0 8 / 3 0 / 2 0 1 6 1 : 1 0 P M P : \ D u k e E n e r g y P r o g r e s s . 1 0 2 6 \ 1 0 8 . S u t t o n A s h B a s i n G W A s s e s s m e n t P l a n \ 1 9 . E G _ C S A S U P \ F i g u r e s \ D E S U T T O N C S A U P I S O P L E T H ( S E C T I O N A - A ' ) . d w g V E R T I C A L E X A G G E R A T I O N 5 X F I G U R E 1 - 3 6 S I T E C R O S S - S E C T I O N A - A ' W I T H C O B A L T D U K E E N E R G Y P R O G R E S S L . V . S U T T O N E N E R G Y C O M P L E X W I L M I N G T O N , N O R T H C A R O L I N A C O B A L T 2 L V A L U E = 1 g / L MW-23D MW-23C MW-23B MW-23E AW-6D FORMER ASHSURFACE CURRENT ASHSURFACE DUE TO ONGOING ASH REMOVAL DW-6 (S2-WELL 2) DW-6 (S2-PUMPHOUSE) ZONE WITH COARSE SANDSAND SILT 6 . 5 SALINE FRONT ? S A L I N E F R O N T ? 7 0 0 <1<1 < 1 < 1 < 1 < 1 < 1 < 1 < 1 < 1 1 . 0 8 2 2 N S 6 . 5 SALINE AQUIFER C O N D I T I O N S I N T H E P E E D E E F O R M A T I O N D O C U M E N T E D I N A R E P O R T T I T L E D "Potential Ground w a t e r I m p a c t s o f t h e P r o p o s e d C a r o l i n a s C e m e n t C o m p a n y F a c i l i t y N e a r C a s t l e H a y n e , N o r t h C a r o l i n a " S M W - 6 B N C D E Q S U P P L Y W E L L S A M P L E I D M O N I T O R I N G W E L L 5 0 0 5 0 1 0 0 V E R T I C A L G R A P H I C S C A L E I N F E E T 2 5 0 0 2 5 0 5 0 0 H O R I Z O N T A L G R A P H I C S C A L E I N F E E T S C R E E N E D I N T E R V A L G R O U N D S U R F A C E W E L L C A S I N G M O N I T O R I N G W E L L S C H E M A T I C G E N E R A L I Z E D W A T E R T A B L E L E G E N D N O T S A M P L E D C O B A L T C O N C E N T R A T I O N I N g / L N S 6 . 5 C O B A L T I S O P L E T H I N g / L N A N O T A N A L Y Z E D D W - 6 ( S 2 - W E L L 1 ) BORON ISOPLETH CONTOURS BASED ON INTERPOLATION OF SITE WIDE DATA.CONCENTRATIONS SHOWN REFLECT MOST RECENT ANALYTICAL DATA COLLECTED (SEE APPENDIX A)SAMPLE DATES:ISOPLETH NOTE: A A ' (WEST) ( E A S T ) L I N E R DREDGE DITCH SUTTON LAKE RD CCR SURFACE IMPOUNDMENT COMPLIA N C E B O U N D A R Y CCR SURFACE IMPOUNDME N T L. V. SUTTON ENERGY COMPL E X SMW-6D ASH MW-12 AW-6E S . T . W O O T E N C O R P SMW-6C ABMW-01DABMW-01S NC HWY 421 RAILROAD CANAL DW-6 (S2-WELL1) Z O N E W I T H C O A R S E S A N D S A N D S I L T 0 ' m s l . GRAVEL ROAD AW-6B SMW-6B Z O N E S O F S I L T S A N D S A N D S Z O N E S O F S I L T S A N D S A N D S 0 ' m s l . OLD ASH POND AREA GRAVEL ROAD N E W A S H P O N D A R E A - L I N E D GRAVEL ROAD A S H P E E D E E F O R M A T I O N Z O N E S O F S I L T S A N D F I N E S A N D S PEE DEE FORMATIONZONES OF SILTS AND FINE SANDS 1 4 8 R I V E R S T R E E T , S U I T E 2 2 0 G R E E N V I L L E , S O U T H C A R O L I N A 2 9 6 0 1 P H O N E 8 6 4 - 4 2 1 - 9 9 9 9 w w w . s y n t e r r a c o r p . c o m P R O J E C T M A N A G E R : L A Y O U T : D R A W N B Y : P E R R Y W A L D R E P D A T E : J O H N C H A S T A I N F I G 1 - 3 7 ( I R O N ) 0 8 / 1 0 / 2 0 1 6 0 8 / 3 0 / 2 0 1 6 1 : 1 1 P M P : \ D u k e E n e r g y P r o g r e s s . 1 0 2 6 \ 1 0 8 . S u t t o n A s h B a s i n G W A s s e s s m e n t P l a n \ 1 9 . E G _ C S A S U P \ F i g u r e s \ D E S U T T O N C S A U P I S O P L E T H ( S E C T I O N A - A ' ) . d w g V E R T I C A L E X A G G E R A T I O N 5 X F I G U R E 1 - 3 7 S I T E C R O S S - S E C T I O N A - A ' W I T H I R O N D U K E E N E R G Y P R O G R E S S L . V . S U T T O N E N E R G Y C O M P L E X W I L M I N G T O N , N O R T H C A R O L I N A I R O N 2 L V A L U E = 3 0 0 g / L MW-23D MW-23C MW-23B MW-23E AW-6D FORMER ASHSURFACE CURRENT ASHSURFACE DUE TO ONGOING ASH REMOVAL DW-6 (S2-WELL 2) DW-6 (S2-PUMPHOUSE) ZONE WITH COARSE SANDSAND SILTSALINE FRONT ? S A L I N E F R O N T ? 300 317475 1 4 5 2 5 1 7 4 3 5 5 < 1 0 4 4 9 1 4 1 6 2 4 N S 6 1 SALINE AQUIFER C O N D I T I O N S I N T H E P E E D E E F O R M A T I O N D O C U M E N T E D I N A R E P O R T T I T L E D "Potential Ground w a t e r I m p a c t s o f t h e P r o p o s e d C a r o l i n a s C e m e n t C o m p a n y F a c i l i t y N e a r C a s t l e H a y n e , N o r t h C a r o l i n a " 6 6 7 6 3 5 5 0 0 3 0 0 3 0 0 300 S M W - 6 B N C D E Q S U P P L Y W E L L S A M P L E I D M O N I T O R I N G W E L L 5 0 0 5 0 1 0 0 V E R T I C A L G R A P H I C S C A L E I N F E E T 2 5 0 0 2 5 0 5 0 0 H O R I Z O N T A L G R A P H I C S C A L E I N F E E T S C R E E N E D I N T E R V A L G R O U N D S U R F A C E W E L L C A S I N G M O N I T O R I N G W E L L S C H E M A T I C G E N E R A L I Z E D W A T E R T A B L E L E G E N D N O T S A M P L E D I R O N C O N C E N T R A T I O N I N g / L N S 4 4 9 I R O N I S O P L E T H I N g / L N A N O T A N A L Y Z E D D W - 6 ( S 2 - W E L L 1 ) BORON ISOPLETH CONTOURS BASED ON INTERPOLATION OF SITE WIDE DATA.CONCENTRATIONS SHOWN REFLECT MOST RECENT ANALYTICAL DATA COLLECTED (SEE APPENDIX A)SAMPLE DATES:ISOPLETH NOTE:COOLING POND A A ' (WEST) ( E A S T ) L I N E R DREDGE DITCH SUTTON LAKE RD CCR SURFACE IMPOUNDMENT COMPLIA N C E B O U N D A R Y CCR SURFACE IMPOUNDME N T L. V. SUTTON ENERGY COMPL E X SMW-6D ASH MW-12 AW-6E S . T . W O O T E N C O R P SMW-6C ABMW-01DABMW-01S NC HWY 421 RAILROAD CANAL DW-6 (S2-WELL1) Z O N E W I T H C O A R S E S A N D S A N D S I L T 0 ' m s l . GRAVEL ROAD AW-6B SMW-6B Z O N E S O F S I L T S A N D S A N D S Z O N E S O F S I L T S A N D S A N D S 0 ' m s l . OLD ASH POND AREA GRAVEL ROAD N E W A S H P O N D A R E A - L I N E D GRAVEL ROAD A S H P E E D E E F O R M A T I O N Z O N E S O F S I L T S A N D F I N E S A N D S PEE DEE FORMATIONZONES OF SILTS AND FINE SANDS 1 4 8 R I V E R S T R E E T , S U I T E 2 2 0 G R E E N V I L L E , S O U T H C A R O L I N A 2 9 6 0 1 P H O N E 8 6 4 - 4 2 1 - 9 9 9 9 w w w . s y n t e r r a c o r p . c o m P R O J E C T M A N A G E R : L A Y O U T : D R A W N B Y : P E R R Y W A L D R E P D A T E : J O H N C H A S T A I N F I G 1 - 3 8 ( M A N G A N E S E ) 0 8 / 1 0 / 2 0 1 6 0 8 / 3 0 / 2 0 1 6 1 : 1 2 P M P : \ D u k e E n e r g y P r o g r e s s . 1 0 2 6 \ 1 0 8 . S u t t o n A s h B a s i n G W A s s e s s m e n t P l a n \ 1 9 . E G _ C S A S U P \ F i g u r e s \ D E S U T T O N C S A U P I S O P L E T H ( S E C T I O N A - A ' ) . d w g V E R T I C A L E X A G G E R A T I O N 5 X F I G U R E 1 - 3 8 S I T E C R O S S - S E C T I O N A - A ' W I T H M A N G A N E S E D U K E E N E R G Y P R O G R E S S L . V . S U T T O N E N E R G Y C O M P L E X W I L M I N G T O N , N O R T H C A R O L I N A M A N G A N E S E 2 L V A L U E = 5 0 g / L MW-23D MW-23C MW-23B MW-23E AW-6D FORMER ASHSURFACE CURRENT ASHSURFACE DUE TO ONGOING ASH REMOVAL DW-6 (S2-WELL 2) DW-6 (S2-PUMPHOUSE) ZONE WITH COARSE SANDSAND SILT 8 6 4 6 2 3 7 0 2 7 8 SALINE FRONT ? S A L I N E F R O N T ? 7782 1 7 6 2 1 9 2 5 8 3 2 9 8 2 9 5 N S SALINE AQUIFER C O N D I T I O N S I N T H E P E E D E E F O R M A T I O N D O C U M E N T E D I N A R E P O R T T I T L E D "Potential Ground w a t e r I m p a c t s o f t h e P r o p o s e d C a r o l i n a s C e m e n t C o m p a n y F a c i l i t y N e a r C a s t l e H a y n e , N o r t h C a r o l i n a " 50 S M W - 6 B N C D E Q S U P P L Y W E L L S A M P L E I D M O N I T O R I N G W E L L 5 0 0 5 0 1 0 0 V E R T I C A L G R A P H I C S C A L E I N F E E T 2 5 0 0 2 5 0 5 0 0 H O R I Z O N T A L G R A P H I C S C A L E I N F E E T S C R E E N E D I N T E R V A L G R O U N D S U R F A C E W E L L C A S I N G M O N I T O R I N G W E L L S C H E M A T I C G E N E R A L I Z E D W A T E R T A B L E L E G E N D N O T S A M P L E D M A N G A N E S E C O N C E N T R A T I O N I N g / L N S 2 9 5 M A N G A N E S E I S O P L E T H I N g / L N A N O T A N A L Y Z E D D W - 6 ( S 2 - W E L L 1 ) 50 5 0 5 0 2 0 0 2 0 0 5 0 5 0 2 0 0 BORON ISOPLETH CONTOURS BASED ON INTERPOLATION OF SITE WIDE DATA.CONCENTRATIONS SHOWN REFLECT MOST RECENT ANALYTICAL DATA COLLECTED (SEE APPENDIX A)SAMPLE DATES:ISOPLETH NOTE:COOLING POND A A ' (WEST) ( E A S T ) L I N E R DREDGE DITCH SUTTON LAKE RD CCR SURFACE IMPOUNDMENT COMPLIA N C E B O U N D A R Y CCR SURFACE IMPOUNDME N T L. V. SUTTON ENERGY COMPL E X SMW-6D ASH MW-12 AW-6E S . T . W O O T E N C O R P SMW-6C ABMW-01DABMW-01S NC HWY 421 RAILROAD CANAL DW-6 (S2-WELL1) Z O N E W I T H C O A R S E S A N D S A N D S I L T 0 ' m s l . GRAVEL ROAD AW-6B SMW-6B Z O N E S O F S I L T S A N D S A N D S Z O N E S O F S I L T S A N D S A N D S 0 ' m s l . OLD ASH POND AREA GRAVEL ROAD N E W A S H P O N D A R E A - L I N E D GRAVEL ROAD A S H P E E D E E F O R M A T I O N Z O N E S O F S I L T S A N D F I N E S A N D S PEE DEE FORMATIONZONES OF SILTS AND FINE SANDS 1 4 8 R I V E R S T R E E T , S U I T E 2 2 0 G R E E N V I L L E , S O U T H C A R O L I N A 2 9 6 0 1 P H O N E 8 6 4 - 4 2 1 - 9 9 9 9 w w w . s y n t e r r a c o r p . c o m P R O J E C T M A N A G E R : L A Y O U T : D R A W N B Y : P E R R Y W A L D R E P D A T E : J O H N C H A S T A I N F I G 1 - 3 9 ( S T R O N T I U M ) 0 8 / 1 0 / 2 0 1 6 0 8 / 3 0 / 2 0 1 6 1 : 1 2 P M P : \ D u k e E n e r g y P r o g r e s s . 1 0 2 6 \ 1 0 8 . S u t t o n A s h B a s i n G W A s s e s s m e n t P l a n \ 1 9 . E G _ C S A S U P \ F i g u r e s \ D E S U T T O N C S A U P I S O P L E T H ( S E C T I O N A - A ' ) . d w g V E R T I C A L E X A G G E R A T I O N 5 X F I G U R E 1 - 3 9 S I T E C R O S S - S E C T I O N A - A ' W I T H S T R O N T I U M D U K E E N E R G Y P R O G R E S S L . V . S U T T O N E N E R G Y C O M P L E X W I L M I N G T O N , N O R T H C A R O L I N A S T R O N T I U M P R O V I S I O N A L B A C K G R O U N D 1 5 0 g / L MW-23D MW-23C MW-23B MW-23E AW-6D FORMER ASHSURFACE CURRENT ASHSURFACE DUE TO ONGOING ASH REMOVAL DW-6 (S2-WELL 2) DW-6 (S2-PUMPHOUSE) ZONE WITH COARSE SANDSAND SILT 7 8 8 1 , 2 6 0 1 7 8 2 8 7 SALINE FRONT ? S A L I N E F R O N T ? 5,750179 9 3 1 1 4 8 1 1 5 0 4 7 1 0 7 3 8 2 8 5 3 6 5 N S SALINE AQUIFER C O N D I T I O N S I N T H E P E E D E E F O R M A T I O N D O C U M E N T E D I N A R E P O R T T I T L E D "Potential Ground w a t e r I m p a c t s o f t h e P r o p o s e d C a r o l i n a s C e m e n t C o m p a n y F a c i l i t y N e a r C a s t l e H a y n e , N o r t h C a r o l i n a " S M W - 6 B N C D E Q S U P P L Y W E L L S A M P L E I D M O N I T O R I N G W E L L 5 0 0 5 0 1 0 0 V E R T I C A L G R A P H I C S C A L E I N F E E T 2 5 0 0 2 5 0 5 0 0 H O R I Z O N T A L G R A P H I C S C A L E I N F E E T S C R E E N E D I N T E R V A L G R O U N D S U R F A C E W E L L C A S I N G M O N I T O R I N G W E L L S C H E M A T I C G E N E R A L I Z E D W A T E R T A B L E L E G E N D N O T S A M P L E D S T R O N T I U M C O N C E N T R A T I O N I N g / L N S 2 9 5 S T R O N T I U M I S O P L E T H I N g / L N A N O T A N A L Y Z E D D W - 6 ( S 2 - W E L L 1 ) 150150 1 5 0 1 5 0 1 5 0 BORON ISOPLETH CONTOURS BASED ON INTERPOLATION OF SITE WIDE DATA.CONCENTRATIONS SHOWN REFLECT MOST RECENT ANALYTICAL DATA COLLECTED (SEE APPENDIX A)SAMPLE DATES:ISOPLETH NOTE:COOLING POND A A ' (WEST) ( E A S T ) L I N E R COOLING PONDDREDGE DITCH SUTTON LAKE RD CCR SURFACE IMPOUNDMENT COMPLIA N C E B O U N D A R Y CCR SURFACE IMPOUNDME N T L. V. SUTTON ENERGY COMPL E X SMW-6D ASH MW-12 AW-6E S . T . W O O T E N C O R P SMW-6C ABMW-01DABMW-01S NC HWY 421 RAILROAD CANAL DW-6 (S2-WELL1) Z O N E W I T H C O A R S E S A N D S A N D S I L T 0 ' m s l . GRAVEL ROAD AW-6B SMW-6B Z O N E S O F S I L T S A N D S A N D S Z O N E S O F S I L T S A N D S A N D S 0 ' m s l . OLD ASH POND AREA GRAVEL ROAD N E W A S H P O N D A R E A - L I N E D GRAVEL ROAD A S H P E E D E E F O R M A T I O N Z O N E S O F S I L T S A N D F I N E S A N D S PEE DEE FORMATIONZONES OF SILTS AND FINE SANDS 1 4 8 R I V E R S T R E E T , S U I T E 2 2 0 G R E E N V I L L E , S O U T H C A R O L I N A 2 9 6 0 1 P H O N E 8 6 4 - 4 2 1 - 9 9 9 9 w w w . s y n t e r r a c o r p . c o m P R O J E C T M A N A G E R : L A Y O U T : D R A W N B Y : P E R R Y W A L D R E P D A T E : J O H N C H A S T A I N F I G 1 - 4 0 ( T D S ) 0 8 / 1 0 / 2 0 1 6 0 8 / 3 0 / 2 0 1 6 1 : 1 3 P M P : \ D u k e E n e r g y P r o g r e s s . 1 0 2 6 \ 1 0 8 . S u t t o n A s h B a s i n G W A s s e s s m e n t P l a n \ 1 9 . E G _ C S A S U P \ F i g u r e s \ D E S U T T O N C S A U P I S O P L E T H ( S E C T I O N A - A ' ) . d w g V E R T I C A L E X A G G E R A T I O N 5 X F I G U R E 1 - 4 0 S I T E C R O S S - S E C T I O N A - A ' W I T H T D S D U K E E N E R G Y P R O G R E S S L . V . S U T T O N E N E R G Y C O M P L E X W I L M I N G T O N , N O R T H C A R O L I N A MW-23D MW-23C MW-23B MW-23E AW-6D FORMER ASHSURFACE CURRENT ASHSURFACE DUE TO ONGOING ASH REMOVAL DW-6 (S2-WELL 2) DW-6 (S2-PUMPHOUSE) ZONE WITH COARSE SANDSAND SILT 1 4 0 3 1 0 1 5 0 3 2 6 SALINE FRONT ? S A L I N E F R O N T ? 350 5 6 0 1 , 5 0 0 6 6 0 1 5 0 0 2 3 7 6 0 8 2 3 4 1 5 9 N S SALINE AQUIFER C O N D I T I O N S I N T H E P E E D E E F O R M A T I O N D O C U M E N T E D I N A R E P O R T T I T L E D "Potential Ground w a t e r I m p a c t s o f t h e P r o p o s e d C a r o l i n a s C e m e n t C o m p a n y F a c i l i t y N e a r C a s t l e H a y n e , N o r t h C a r o l i n a " S M W - 6 B N C D E Q S U P P L Y W E L L S A M P L E I D M O N I T O R I N G W E L L 5 0 0 5 0 1 0 0 V E R T I C A L G R A P H I C S C A L E I N F E E T 2 5 0 0 2 5 0 5 0 0 H O R I Z O N T A L G R A P H I C S C A L E I N F E E T S C R E E N E D I N T E R V A L G R O U N D S U R F A C E W E L L C A S I N G M O N I T O R I N G W E L L S C H E M A T I C G E N E R A L I Z E D W A T E R T A B L E L E G E N D N O T S A M P L E D T D S C O N C E N T R A T I O N I N g / L N S 2 9 5 T D S I S O P L E T H I N g / L N A N O T A N A L Y Z E D D W - 6 ( S 2 - W E L L 1 ) T D S 2 L V A L U E = 5 0 0 g / L 500500680500 5 0 0 5 0 0 BORON ISOPLETH CONTOURS BASED ON INTERPOLATION OF SITE WIDE DATA.CONCENTRATIONS SHOWN REFLECT MOST RECENT ANALYTICAL DATA COLLECTED (SEE APPENDIX A)SAMPLE DATES:ISOPLETH NOTE: A A ' (WEST) ( E A S T ) L I N E R COOLING PONDDREDGE DITCH SUTTON LAKE RD CCR SURFACE IMPOUNDMENT COMPLIA N C E B O U N D A R Y CCR SURFACE IMPOUNDME N T L. V. SUTTON ENERGY COMPL E X SMW-6D ASH MW-12 AW-6E S . T . W O O T E N C O R P SMW-6C ABMW-01DABMW-01S NC HWY 421 RAILROAD CANAL DW-6 (S2-WELL1) Z O N E W I T H C O A R S E S A N D S A N D S I L T 0 ' m s l . GRAVEL ROAD AW-6B SMW-6B Z O N E S O F S I L T S A N D S A N D S Z O N E S O F S I L T S A N D S A N D S 0 ' m s l . OLD ASH POND AREA GRAVEL ROAD N E W A S H P O N D A R E A - L I N E D GRAVEL ROAD A S H P E E D E E F O R M A T I O N Z O N E S O F S I L T S A N D F I N E S A N D S PEE DEE FORMATIONZONES OF SILTS AND FINE SANDS 1 4 8 R I V E R S T R E E T , S U I T E 2 2 0 G R E E N V I L L E , S O U T H C A R O L I N A 2 9 6 0 1 P H O N E 8 6 4 - 4 2 1 - 9 9 9 9 w w w . s y n t e r r a c o r p . c o m P R O J E C T M A N A G E R : L A Y O U T : D R A W N B Y : P E R R Y W A L D R E P D A T E : J O H N C H A S T A I N F I G 1 - 4 1 ( V A N A D I U M ) 0 8 / 1 0 / 2 0 1 6 0 8 / 3 0 / 2 0 1 6 1 : 1 4 P M P : \ D u k e E n e r g y P r o g r e s s . 1 0 2 6 \ 1 0 8 . S u t t o n A s h B a s i n G W A s s e s s m e n t P l a n \ 1 9 . E G _ C S A S U P \ F i g u r e s \ D E S U T T O N C S A U P I S O P L E T H ( S E C T I O N A - A ' ) . d w g V E R T I C A L E X A G G E R A T I O N 5 X F I G U R E 1 - 4 1 S I T E C R O S S - S E C T I O N A - A ' W I T H V A N A D I U M D U K E E N E R G Y P R O G R E S S L . V . S U T T O N E N E R G Y C O M P L E X W I L M I N G T O N , N O R T H C A R O L I N A MW-23D MW-23C MW-23B MW-23E AW-6D FORMER ASHSURFACE CURRENT ASHSURFACE DUE TO ONGOING ASH REMOVAL DW-6 (S2-WELL 2) DW-6 (S2-PUMPHOUSE) ZONE WITH COARSE SANDSAND SILT 0 . 6 9 1 0 . 4 5 7 1 . 4 3 SALINE FRONT ? S A L I N E F R O N T ? 0.642 0 . 4 2 3 0 . 8 6 4 1 . 1 2 0 . 4 0 3 1 . 5 7 < 0 . 3 SALINE AQUIFER C O N D I T I O N S I N T H E P E E D E E F O R M A T I O N D O C U M E N T E D I N A R E P O R T T I T L E D "Potential Ground w a t e r I m p a c t s o f t h e P r o p o s e d C a r o l i n a s C e m e n t C o m p a n y F a c i l i t y N e a r C a s t l e H a y n e , N o r t h C a r o l i n a " S M W - 6 B N C D E Q S U P P L Y W E L L S A M P L E I D M O N I T O R I N G W E L L 5 0 0 5 0 1 0 0 V E R T I C A L G R A P H I C S C A L E I N F E E T 2 5 0 0 2 5 0 5 0 0 H O R I Z O N T A L G R A P H I C S C A L E I N F E E T S C R E E N E D I N T E R V A L G R O U N D S U R F A C E W E L L C A S I N G M O N I T O R I N G W E L L S C H E M A T I C G E N E R A L I Z E D W A T E R T A B L E L E G E N D N O T S A M P L E D V A N A D I U M C O N C E N T R A T I O N I N g / L N S 2 9 5 V A N A D I U M I S O P L E T H I N g / L N A N O T A N A L Y Z E D D W - 6 ( S 2 - W E L L 1 ) V A N A D I U M 2 L V A L U E = 0 . 3 g / L 5.08 < 0 . 3 0 . 4 5 7 0.3 N S < 0 . 3 0 . 5 3 0 . 3 0 . 3 0 . 3 0.3 0 . 3 BORON ISOPLETH CONTOURS BASED ON INTERPOLATION OF SITE WIDE DATA.CONCENTRATIONS SHOWN REFLECT MOST RECENT ANALYTICAL DATA COLLECTED (SEE APPENDIX A)SAMPLE DATES:ISOPLETH NOTE: FI G U R E 1 - 4 2 PI P E R D I A G R A M ̶ S U R F I C I A L A Q U I F E R L. V . S U T T O N E N E R G Y C O M P L E X 80 1 S U T T O N S T E A M P L A N T R O A D WI L M I N G T O N , N O R T H C A R O L I N A 2 8 4 0 1 14 8 R I V E R S T R E E T , S U I T E 2 2 0 GR E E N V I L L E , S O U T H C A R O L I N A 2 9 6 0 1 PH O N E 8 6 4 - 4 2 1 - 9 9 9 9 ww w . s y n t e r r a c o r p . c o m DR A W N B Y : J . G I L M E R PR O J E C T M A N A G E R : P . W A L D R E P LA Y O U T : DA T E : A U G U S T 2 0 1 6 P: \ D u k e E n e r g y P r o g r e s s . 1 0 2 6 \ 1 0 3 . S u t t o n A s h B a s i n G W As s e s s m e n t P l a n \ 1 9 . E G _ C S A S U P \ F i g u r e s \ P i p e r D i a g r a m s MW ‐ 4 B MW ‐ 3 7 C MW ‐ 5 C Up p e r S u r f i c i a l W e l l Up p e r S u r f i c i a l Ba c k g r o u n d W e l l Lo w e r S u r f i c i a l W e l l Lo w e r S u r f i c i a l Ba c k g r o u n d W e l l NO T E : Hollow shapes in d i c a t e d i f f e r e n c e i n i o n ch a r g e b a l a n c e > 2 0 % FI G U R E 1 - 4 3 PI P E R D I A G R A M ̶ P E E D E E A Q U I F E R L. V . S U T T O N E N E R G Y C O M P L E X 80 1 S U T T O N S T E A M P L A N T R O A D WI L M I N G T O N , N O R T H C A R O L I N A 2 8 4 0 1 14 8 R I V E R S T R E E T , S U I T E 2 2 0 GR E E N V I L L E , S O U T H C A R O L I N A 2 9 6 0 1 PH O N E 8 6 4 - 4 2 1 - 9 9 9 9 ww w . s y n t e r r a c o r p . c o m DR A W N B Y : J . G I L M E R PR O J E C T M A N A G E R : P . W A L D R E P LA Y O U T : DA T E : A U G U S T 2 0 1 6 P: \ D u k e E n e r g y P r o g r e s s . 1 0 2 6 \ 1 0 3 . S u t t o n A s h B a s i n G W As s e s s m e n t P l a n \ 1 9 . E G _ C S A S U P \ F i g u r e s \ P i p e r D i a g r a m s AW ‐ 6 E Up p e r P e e D e e W e l l Lo w e r P e e D e e W e l l 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: B. WYLIE PROJECT MANAGER: P. WALDREP LAYOUT: DATE: AUGUST 2016 P:\Duke Energy Progress.1026\108. Sutton Ash Basin GW Assessment Plan\19.EG_CSASUP\Figures\Time vs. Concentration Graphs\FIGURE 1-44 Time vs Concentration MW-4B & MW-12.pptx FIGURE 1-44 TIME VERSUS CONCENTRATION MW-4B & MW-12 L.V. SUTTON ENERGY COMPLEX WILMINGTON, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: B. WYLIE PROJECT MANAGER: P. WALDREP LAYOUT: DATE: AUGUST 2016 P:\Duke Energy Progress.1026\108. Sutton Ash Basin GW Assessment Plan\19.EG_CSASUP\Figures\Time vs. Concentration Graphs\FIGURE 1-45 Time vs Concentration MW-22B & MW-23B.pptx FIGURE 1-45 TIME VERSUS CONCENTRATION MW-22B & MW-23B L.V. SUTTON ENERGY COMPLEX WILMINGTON, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: B. WYLIE PROJECT MANAGER: P. WALDREP LAYOUT: DATE: AUGUST 2016 P:\Duke Energy Progress.1026\108. Sutton Ash Basin GW Assessment Plan\19.EG_CSASUP\Figures\Time vs. Concentration Graphs\FIGURE 1-46 Time vs Concentration MW-24B & MW-27B.pptx FIGURE 1-46 TIME VERSUS CONCENTRATION MW-24B & MW-27B L.V. SUTTON ENERGY COMPLEX WILMINGTON, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: B. WYLIE PROJECT MANAGER: P. WALDREP LAYOUT: DATE: AUGUST 2016 P:\Duke Energy Progress.1026\108. Sutton Ash Basin GW Assessment Plan\19.EG_CSASUP\Figures\Time vs. Concentration Graphs\FIGURE 1-47 Time vs Concentration MW-19 & MW-7C.pptx FIGURE 1-47 TIME VERSUS CONCENTRATION MW-19 & MW-7C L.V. SUTTON ENERGY COMPLEX WILMINGTON, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: B. WYLIE PROJECT MANAGER: P. WALDREP LAYOUT: DATE: AUGUST 2016 P:\Duke Energy Progress.1026\108. Sutton Ash Basin GW Assessment Plan\19.EG_CSASUP\Figures\Time vs. Concentration Graphs\FIGURE 1-48 Time vs Concentration MW-21C & MW- 22C.pptx FIGURE 1-48 TIME VERSUS CONCENTRATION MW-21C & MW-22C L.V. SUTTON ENERGY COMPLEX WILMINGTON, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: B. WYLIE PROJECT MANAGER: P. WALDREP LAYOUT: DATE: AUGUST 2016 P:\Duke Energy Progress.1026\108. Sutton Ash Basin GW Assessment Plan\19.EG_CSASUP\Figures\Time vs. Concentration Graphs\FIGURE 1-49 Time vs Concentration MW-23C & MW-24C.pptx FIGURE 1-49 TIME VERSUS CONCENTRATION MW-23C & MW-24C L.V. SUTTON ENERGY COMPLEX WILMINGTON, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: B. WYLIE PROJECT MANAGER: P. WALDREP LAYOUT: DATE: AUGUST 2016 P:\Duke Energy Progress.1026\108. Sutton Ash Basin GW Assessment Plan\19.EG_CSASUP\Figures\Time vs. Concentration Graphs\FIGURE 1-50 Time vs Concentration MW-28C & MW-31C.pptx FIGURE 1-50 TIME VERSUS CONCENTRATION MW-28C & MW-31C L.V. SUTTON ENERGY COMPLEX WILMINGTON, NORTH CAROLINA 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: B. WYLIE PROJECT MANAGER: P. WALDREP LAYOUT: DATE: AUGUST 2016 P:\Duke Energy Progress.1026\108. Sutton Ash Basin GW Assessment Plan\19.EG_CSASUP\Figures\Time vs. Concentration Graphs\FIGURE 1-51 Time vs Concentration MW-32C & MW-33C.pptx FIGURE 1-51 TIME VERSUS CONCENTRATION MW-32C & MW-33C L.V. SUTTON ENERGY COMPLEX WILMINGTON, NORTH CAROLINA E D R 1 1 E D R 5 E D R 3 C A N A L 8 / 2 / 2 0 1 5 8 / 2 / 2 0 1 5 P . W A L D R E P J . C H A S T A I N P R O J E C T M A N A G E R : L A Y O U T N A M E : D R A W N B Y : C H E C K E D B Y : K A T H Y W E B B D A T E : D A T E : F I G U R E 1 - 5 2 P O T E N T I O M E T R I C S U R F A C E L O W E R S U R F I C I A L A Q U I F E R J U N E 1 , 2 0 1 5 8/30/2016 10:30 AM P:\Duke Energy Progress.1026\108. Sutton Ash Basin GW Assessment Plan\19.EG_CSASUP\Figures\DE SUTTON CSASUP WATER LEVEL BASE MAP 2015-08-02.dwg F I G 1 - 5 2 ( L O W E R S U R F I C I A L A Q U I F E R ) 1 2 0 0 G R A P H I C S C A L E ( I N F E E T ) 0 6 0 0 3 0 0 6 0 0 w w w . s y n t e r r a c o r p . c o m 1 4 8 R i v e r S t r e e t , S u i t e 2 2 0 G r e e n v i l l e , S o u t h C a r o l i n a 2 9 6 0 1 8 6 4 - 4 2 1 - 9 9 9 9 L . V . S U T T O N E N E R G Y C O M P L E X 8 0 1 S U T T O N S T E A M P L A N T R D W I L M I N G T O N , N O R T H C A R O L I N A L E G E N D A M W - 1 5 S 7 1 . 1 8 B A C K G R O U N D C O M P L I A N C E W E L L W A T E R L E V E L I N F E E T ( m s l . ) B G M W - 1 0 7 3 . 0 1 C M W - 6 R 6 9 . 1 2 D O W N G R A D I E N T C O M P L I A N C E W E L L W A T E R L V E L E L E V A T I O N I N F E E T ( m s l . ) A S S E S S M E N T W E L L W E L L W A T E R L E V E L E L E V A T I O N I N F E E T ( m s l . ) D M W - 1 6 6 . 8 4 M O N I T O R I N G W E L L W A T E R L V E L E L E V A T I O N I N F E E T ( m s l . ) W A T E R L E V E L C O N T O U R I N F E E T ( m s l . ) I N F E R R E D W A T E R L E V E L C O N T O U R ( m s l . ) 5 0 0 f t C O M P L I A N C E B O U N D A R Y D U K E E N E R G Y P R O G R E S S W A S T E B O U N D A R Y S M W - 0 6 C 9 . 9 2 S M W - 0 6 D S M W - 0 6 B S M W - 0 5 C 1 0 . 4 8 S M W - 0 5 B S M W - 0 1 B S M W - 0 1 C 1 0 . 1 0 S M W - 0 2 B S M W - 0 2 C 1 0 . 0 1 S M W - 0 3 B S M W - 0 3 C 9 . 6 3 S M W - 0 4 B S M W - 0 4 C 1 0 . 6 9 P Z - I N T G W P Z - 3 B G W P Z - 3 A G W P Z - 2 A G W P Z - 2 B M W - 2 3 C 1 0 . 8 9 M W - 2 3 B M W - 2 2 C 1 0 . 3 9 M W - 2 2 B G W P Z - 4 A G W P Z - 4 B A B M W - 0 1 S 1 1 . 1 6 A B M W - 0 1 D A B M W - 0 2 D 7 . 3 9 A B M W - 0 2 S M W - 1 4 M W - 1 6 M W - 1 6 D 8 . 3 9 M W - 1 5 M W - 1 5 D 7 . 2 1 M W - 2 0 D 4 . 1 1 M W - 2 0 A W - 0 9 B A W - 0 9 D A W - 0 9 C 8 . 6 3 M W - 7 C 9 . 0 4 M W - 7 B M W - 7 A M W - 1 9 9 . 7 8 M W - 2 1 C 9 . 7 9 M W - 1 8 M W - 2 8 C 9 . 6 6 M W - 2 8 B M W - 2 8 T L A - P Z - 5 M W - 3 3 C 1 0 . 0 2 M W - 3 2 C 1 0 . 3 2 M W - 3 4 B M W - 3 5 B M W - 3 5 C M W - 3 4 C M W - 3 6 C M W - 3 6 B M W - 2 7 B P Z - 1 0 S P Z - 1 0 D L A - P Z - 1 A W - 0 8 B M W - 1 1 1 1 . 8 6 P Z - 6 S M W - 9 1 0 . 7 4 L A - P Z - 2 L A - P Z - 4 L A - P Z - 3 M W - 2 4 C 1 1 . 0 2 M W - 2 4 B M W - 1 2 1 0 . 9 6 A W - 0 2 C 1 0 . 8 7 A W - 0 2 B A W - 0 2 D A W - 0 3 B A W - 0 3 C 1 0 . 9 7 A W - 0 1 C 1 0 . 7 0 A W - 0 1 B M W - 8 9 . 8 7 M W - 5 A M W - 5 B M W - 5 C 9 . 3 2 M W - 3 7 C 8 . 6 2 M W - 3 7 B A W - 0 5 D A W - 0 5 B A W - 0 5 E A W - 0 5 C 1 0 . 1 7 A W - 0 4 B A W - 0 4 C 1 0 . 6 7 M W - 4 M W - 4 A M W - 4 B 8 . 3 1 M W - 3 1 B M W - 3 1 C 1 1 . 0 3 A W - 0 7 D C A N A L C A N A L I N V I S T A 1 I N V I S T A 2 I N V I S T A 3 I N V I S T A 4 I N V I S T A 5 I N V I S T A 6 P E - S W 2 P E - S W 4 P E - S W 3 P E - S W 5 P E - S W 6 A P E - S W 6 B P E - S W 6 C ( A B A N D O N E D ) P E - S W 6 E 10.5 10 9 . 5 9 . 0 9 . 0 9 . 5 1 0 . 0 1 0 . 5 1 1 . 0 1 0 . 5 1 0 . 0 9. 5 9 . 5 1 1 . 0 4 5 6 8 . 5 NC WIL D L I F E LAKE A C C E S S S U T T O N L A K E R D COOLING POND N C H I G H W A Y 4 2 1 N C H I G H W A Y 4 2 1 R A I L R O A D R A I L R O A D S U T T O N L A K E R D S U T T O N S T E A M P L A N T R D R O Y M A C D R F R E D R I C K S O N R D M E T R O C I R C L E F R E D R I C K S O N R D A P P R O X I M A T E R O U T E O F T H E N E W W I L L M I N G T O N B Y P A S S ( I - 1 4 0 ) N C H I G H W A Y 4 2 1 R A I L R O A D R A I L R O A D O L D A S H P O N D A R E A N E W A S H P O N D A R E A - L I N E D F O R M E R A S H D I S P O S A L A R E A CAPE FEAR RIVE R CAPE FEAR RIVER W O O T E N P R O D U C T I O N W E L L ( A P P R O X I M A T E ) P E - S W 2 D U K E E N E R G Y P R O G R E S S P R O D U C T I O N W E L L ( A P P R O X I M A T E ) P A R C E L L I N E ( A P P R O X I M A T E ) 6 E D R 3 E D R R E P O R T E D W E L L L O C A T I O N ( A P P R O X I M A T E ) I N V I S T A 3 I N V I S T A P R O D U C T I O N W E L L ( A P P R O X I M A T E ) S . T . W O O T E N C O R P O R A T I O N S . T . W O O T E N C O R P O R A T I O N M I N E B O U N D A R Y IN T E R S T A T E 1 4 0 ( U S H I G H W A Y 1 7 ) P E - S W 6 D COOLING POND WATER LEVEL = 9.7 ftPROVIDED BY DUKE ENERGY 06-01-2015 N P D E S O U T F A L L S W - 0 0 4 NP D E S OU T F A L L S W - 0 0 2 N P D E S O U T F A L L S W - 0 0 1 S O L A R F A R M G W P Z - 1 B G W P Z - 1 A M W - 2 7 C 9 . 9 7 A W - 0 8 C 9 . 7 7 M W - 1 0 9 . 9 5 P Z - 6 D M W - 2 3 E A W - 0 6 B A W - 0 6 D A W - 0 6 E 6 . 0 4 . 0 7 . 0 N O T E : W A T E R L E V E L C O N T O U R S I N T H E F O R M E R A S H D I S P O S A L A R E A M A Y B E A F F E C T E D B Y D I S C R E P A N C I E S I N S U R V E Y D A T A . 8 . 0 5 . 0 S O U R C E S : 1 . 2 0 1 4 A E R I A L P H O T O G R A P H W A S O B T A I N E D F R O M W S P F L O W N O N A P R I L 1 7 , 2 0 1 4 2 . M A Y 2 3 , 2 0 1 4 A E R I A L P H O T O G R A P H W A S O B T A I N E D F R O M T H E N R C S G E O S P A T I A L D A T A G A T E W A Y A T h t t p : / / d a t a g a t e w a y . n r c s . u s d a . g o v / 3 . D R A W I N G H A S B E E N S E T W I T H A P R O J E C T I O N O F N O R T H C A R O L I N A S T A T E P L A N E C O O R D I N A T E S Y S T E M F I P S 3 2 0 0 H O R I Z O N T A L D A T U M ( N A D 8 3 ) A N D V E R T I C A L D A T U M ( N G V D 8 8 ) . 4 . P A R C E L D A T A W A S O B T A I N E D F R O M T H E N O R T H C A R O L I N A S T A T E L I B R A R I E S A T h t t p : / / w w w . l i b . n c s u . e d u / g i s / c o u n t i e s . h t m l F O R N E W H A N O V E R C O U N T Y . 5 . N E W W E L L L O C A T I O N S S U R V E Y E D B Y M c K I M & C R E E D . H O R I Z O N T A L D A T U M I S N A D 8 3 A N D T H E V E R T I C A L D A T U M I S N G V D 8 8 . 6 . W E L L L O C A T I O N S A N D M E A S U R I N G P O I N T S W E R E B A S E D O N A S U R V E Y B Y J A M E S L . H A I N E S & A S S O C I A T E S F O R I S H , I N C . D A T E D D E C E M B E R 2 3 , 2 0 0 8 . I S H D R A W I N G I S T I T L E D " P O T E N T I A L L O C A T I O N S F O R P R O P O S E D G E O P R O B E A N D W E L L I N S T A L L A T I O N S " , D A T E D F E B R U A R Y 2 5 , 2 0 0 9 W I T H A C A D F I L E N A M E F i g u r e 2 2 . d w g 7 . W E L L L O C A T I O N S A N D M E A S U R I N G P O I N T S W E R E B A S E D O N A T A B L E B Y P A R A M O U N T E E N G I N E E R I N G , W I L M I N G T O N N C D A T E D 2 0 1 2 - 0 3 - 0 5 S U P P L I E D B Y P R O G R E S S E N E R G Y . H O R I Z O N T A L D A T U M I S N A D 8 3 ( N S R S 2 0 0 7 ) A N D T H E V E R T I C A L D A T U M I S N G V D 2 9 . 8 . T H E P R O P E R T Y B O U N D A R Y F O R T H E L . V . S U T T O N S T E A M E L E C T R I C P L A N T W A S B A S E D O N A C O M P O S I T E M A P P R E P A R E D B Y D A V I S - M A R T I N - P O W E L L & A S S O C . , I N C . T H E D R A W I N G S A R E D A T E D J U N E , 1 9 9 5 W I T H R E V I S I O N N O T E F O R M A R C H 4 , 2 0 0 4 . F I L E N A M E I S L - D - 9 0 2 2 - 7 . D W G . H O R I Z O N T A L D A T U M I S N A D 8 3 A N D T H E V E R T I C A L D A T U M I S N G V 2 9 . 9 . T H E L O C A T I O N O F T H E F O R M E R A S H D I S P O S A L A R E A S W A S B A S E D O N A F I G U R E 2 - 2 P R E P A R E D B Y B L A S L A N D , B O U C K & L E E , I N C . T H E F I G U R E I S T I T L E D " H O R I Z O N T A L E X T E N T O F T H E A S H W I T H I N T H E F O R M E R D I S P O S A L A R E A " . 1 0 . M O N I T O R I N G W E L L S / P I E Z O M E T E R S / S O I L B O R I N G S C O M P L E T E D A S P A R T O F P R E V I O U S A S S E S S M E N T A C T I V I T I E S . L O C A T I O N S A R E A P P R O X I M A T E . FIGURE 3-1 BORON ISOTOPE EVALUATION L.V. SUTTON ENERGY COMPLEX 801 SUTTON STEAM PLANT ROAD WILMINGTON, NORTH CAROLINA 28401 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: J. GILMER PROJECT MANAGER: P. WALDREP LAYOUT: DATE: AUGUST 2016 P:\Duke Energy Progress.1026\103. Sutton Ash Basin GW Assessment Plan\19.EG_CSASUP\Figures\Piper Diagrams y = 0.0005x + 30.519 R² = 0.0067 y = -0.0022x - 0.919 R² = 0.0634 -20 -10 0 10 20 30 40 1 10 100 1000 10000 δ 11 B Boron (ug/L) Pee Dee Aquifer δ11B Marine water δ11B ~39 Fly Ash Leachate δ11B ~-19.2 to 15.8 Background Pee Dee Aquifer Concentration ug/L Pee Dee Aquifer δ11B AW-06D-12032015 3878 36 PZ-10D-12042015 1762 30 AW-09D-12032015 2543 35 AW-06E-12032015 6831 -239 PZ-6D-12042015 2955 35 MW-23E-12042015 6785 -241 AW-7D-12042015 3393 24 Background Wells Data omitted Surficial Aquifer Concentration, ug/L Surficial Aquifer δ11B AW-4C-12042015 3875 -249 MW-36B-12042015 529.2 -17 MW-23B-12042015 277.4 -13 AW-08C-12032015 181.8 11 MW-36C-12042015 2211 -4 MW-23C-12042015 3293 -7 AW-8B-12032015 98.35 10 FI G U R E 3 - 2 CH L O R I D E / B R O M I D E R A T I O P L O T L. V . S U T T O N E N E R G Y C O M P L E X 80 1 S U T T O N S T E A M P L A N T R O A D WI L M I N G T O N , N O R T H C A R O L I N A 2 8 4 0 1 14 8 R I V E R S T R E E T , S U I T E 2 2 0 GR E E N V I L L E , S O U T H C A R O L I N A 2 9 6 0 1 PH O N E 8 6 4 - 4 2 1 - 9 9 9 9 ww w . s y n t e r r a c o r p . c o m DR A W N B Y : J . G I L M E R PR O J E C T M A N A G E R : P . W A L D R E P LA Y O U T : DA T E : A U G U S T 2 0 1 6 P: \ D u k e E n e r g y P r o g r e s s . 1 0 2 6 \ 1 0 3 . S u t t o n A s h B a s i n G W As s e s s m e n t P l a n \ 1 9 . E G _ C S A S U P \ F i g u r e s \ P i p e r D i a g r a m s MW ‐ 5 C D MW‐5D MW ‐ 2 3 D MW ‐ 3 7 C D MW ‐ 3 7 D MW‐38D MW ‐ 3 9 D MW ‐ 4 0 D MW‐5E MW ‐ 3 7 E US G S B R ‐ 1 0 0 US G S B R ‐ 0 7 8 10 10 0 10 0 0 1 1 0 1 0 0 1 0 0 0 C l / B r R a t i o Ch l o r i d e , m g / L 7.80 7.26 44.87 224.44 486.00 5.25 0 100 200 300 400 500 600 Ash Pore Water Surficial Upper Surficial Lower Pee Dee Upper Pee Dee Lower Plant Production Wells Co n c e n t r a t i o n ( m g / L ) Average Chloride Concentrations NC 2L Standard:250 mg/L FIGURE 3-3 AVERAGE CHLORIDE CONCENTRATIONS L.V. SUTTON ENERGY COMPLEX 801 SUTTON STEAM PLANT ROAD WILMINGTON, NORTH CAROLINA 28401 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: B. WYLIE PROJECT MANAGER: P. WALDREP LAYOUT: DATE: AUGUST 2016 P:\Duke Energy Progress.1026\103. Sutton Ash Basin GW Assessment Plan\19.EG_CSASUP\Figures\CONSTITUENT AVERAGE GRAPHS Note: Average for all wells sampled; based on most recent data 26.90 1.51 4.99 8.01 8.18 0.62 0.00 5.00 10.00 15.00 20.00 25.00 30.00 Ash Pore Water Surficial Upper Surficial Lower Pee Dee Upper Pee Dee Lower Plant Production Wells Co n c e n t r a t i o n ( m g / L ) Average Magnesium Concentrations FIGURE 3-4 AVERAGE MAGNESIUM CONCENTRATIONS L.V. SUTTON ENERGY COMPLEX 801 SUTTON STEAM PLANT ROAD WILMINGTON, NORTH CAROLINA 28401 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: B. WYLIE PROJECT MANAGER: P. WALDREP LAYOUT: DATE: AUGUST 2016 P:\Duke Energy Progress.1026\103. Sutton Ash Basin GW Assessment Plan\19.EG_CSASUP\Figures\CONSTITUENT AVERAGE GRAPHS Note: Average for all wells sampled; based on most recent data 41.85 5.16 28.97 223.62 486.20 3.07 0 100 200 300 400 500 600 Ash Pore Water Surficial Upper Surficial Lower Pee Dee Upper Pee Dee Lower Plant Production Wells Co n c e n t r a t i o n ( m g / L ) Average Sodium Concentrations FIGURE 3-5 AVERAGE SODIUM CONCENTRATIONS L.V. SUTTON ENERGY COMPLEX 801 SUTTON STEAM PLANT ROAD WILMINGTON, NORTH CAROLINA 28401 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: B. WYLIE PROJECT MANAGER: P. WALDREP LAYOUT: DATE: AUGUST 2016 P:\Duke Energy Progress.1026\103. Sutton Ash Basin GW Assessment Plan\19.EG_CSASUP\Figures\CONSTITUENT AVERAGE GRAPHS Note: Average for all wells sampled; based on most recent data 3680.00 122.12 346.17 127.88 646.80 28.00 0 500 1000 1500 2000 2500 3000 3500 4000 Ash Pore Water Surficial Upper Surficial Lower Pee Dee Upper Pee Dee Lower Plant Production Wells Co n c e n t r a t i o n ( u g / L ) Average Strontium Concentrations FIGURE 3-6 AVERAGE STRONTIUM CONCENTRATIONS L.V. SUTTON ENERGY COMPLEX 801 SUTTON STEAM PLANT ROAD WILMINGTON, NORTH CAROLINA 28401 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: B. WYLIE PROJECT MANAGER: P. WALDREP LAYOUT: DATE: AUGUST 2016 P:\Duke Energy Progress.1026\103. Sutton Ash Basin GW Assessment Plan\19.EG_CSASUP\Figures\CONSTITUENT AVERAGE GRAPHS Note: Average for all wells sampled; based on most recent data 260.00 92.77 213.27 667.65 1500.00 49.25 0 200 400 600 800 1000 1200 1400 1600 Ash Pore Water Surficial Upper Surficial Lower Pee Dee Upper Pee Dee Lower Plant Production Wells Co n c e n t r a t i o n ( m g / L ) Average Total Dissolved Solids Concentrations NC 2L Standard:500 mg/L FIGURE 3-7 AVERAGE TDS CONCENTRATIONS L.V. SUTTON ENERGY COMPLEX 801 SUTTON STEAM PLANT ROAD WILMINGTON, NORTH CAROLINA 28401 148 RIVER STREET, SUITE 220 GREENVILLE, SOUTH CAROLINA 29601 PHONE 864-421-9999 www.synterracorp.com DRAWN BY: B. WYLIE PROJECT MANAGER: P. WALDREP LAYOUT: DATE: AUGUST 2016 P:\Duke Energy Progress.1026\103. Sutton Ash Basin GW Assessment Plan\19.EG_CSASUP\Figures\CONSTITUENT AVERAGE GRAPHS Note: Average for all wells sampled; based on most recent data