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HomeMy WebLinkAboutNC0022406_BC Tables_20150909Table 1-1. Comparison of Sampling Data to Federal and State Regulatory Standards Sample Regulatory Criteria Administrative Code/ Media Regulatory Standards Ash NC Industrial and Protection of Groundwater NCDENR Division of Waste Management PSRGs Soil NC Industrial and Protection of Groundwater** NCDENR Division of Waste Management PSRGs Partially Weathered NC Industrial and Protection of Groundwater' NCDENR Division of Waste Management Rock/Bedrock PSRGs Groundwater NC Groundwater Quality Standards and IMAC* 15A NCAC 02L .0202 Porewater NC Groundwater Quality Standards IMAC* 15A NCAC 02L .0202 Seeps NC Groundwater Quality Standards IMAC* 15A NCAC 02L .0202 & 15A NCAC 02B .0202 Surface Water NC Surface Water and Wetland Standards 15A NCAC 026 .0202 Notes: *Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to The Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 2L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs noted in this report are for reference only. ** Preliminary health -based soil remediation goals (PSRGs) have been adapted from the January 2015 USEPA Regional Screening Tables (RSL.) Belews Creek Steam Station Page 1 of 1 Table 2-1. Groundwater Monitoring Requirements Well Nomenclature Constituents and Parameters Frequency Monitoring Wells: Antimony Chromium Nickel Thallium January, May, MW-200S, MW- 200D, MW-201 D, Arsenic Copper Nitrate Water Level September MW-202S, MW- MW-203S, Barium Iron pH Zinc 202D, MW-203D, MW- Boron Lead Selenium 204S, MW-204D Cadmium Manganese Sulfate Chloride Mercury TDS Belews Creek Steam Station Page 1 of 1 Table 2-2. Exceedances of 2L Standards & IMAC at Compliance Wells (January 2011 — July 2015) Parameter Chromium Iron Manganese pH Thallium Units pg/L pg/L Ng/L SU ug/L 2L Standard & 10 300 50 6.5 — 8.5 0.2 I MAC Well ID Range of Exceedances MW-200S No 434 — 3,540 68 — 1,300 5.0 — 6.1 No Exceedances Exceedances MW-200D No 20 — 1,240 No 6.1 — 6.5 <0.2 to 0.356 Exceedances Exceedances MW-201 D No 335 — 1,790 No 5.8 — 6.4 0.207 Exceedances Exceedances MW-202S No No No 5.3 — 5.7 No Exceedances Exceedances Exceedances Exceedances MW-202D <1 - 15 17 — 7,280 <5 — 413 5.6 — 6.3 No Exceedances MW-203S No No No 5.4 — 5.7 No Exceedances Exceedances Exceedances Exceedances MW-203D No No No 6.3 — 6.5 No Exceedances Exceedances Exceedances Exceedances MW-204S No 3,230 — 14,100 748 — 3,600 5.5 — 6.3 No Exceedances Exceedances MW-204D No 345 —1,350 175 — 1,130 5.5 — 6.1 No Exceedances Exceedances Belews Creek Steam Station Page 1 of 1 Table 2-3. Summary of Onsite Environmental Incidents Incident # Year Location Impacted Media Brief Description Status Reported of Incident 3884 Summer Belews Lake — Water & Soil Light sheen of petroleum Closed 1991 CCW discharge product along the shoreline resulted in investigations which revealed the presence of free product at the site. 918847 09/25/2009 Belews Lake — Water 475 gallons of turbine oil Closed CCW discharge leaked from a Main Turbine Oil Tank cooler into CCW system NA 07/02/2012 Road to Soil Illegal dump of household Closed Chemical Pond materials (paint and paint at Ash Basin waste) dumped on side of road going to the Chemical Pond. 1003847 02/24/2012 Belews Lake — Water Slight oil sheen from lower Closed CCW discharge bearing on CCW pump 1010065 04/30/2012 Belews Lake — Water Slight oil sheen from Closed CCW discharge hydraulic line on mobile crane N/A 01/10/2013 Gravel lot near Soil 40-50 gallons of oil spilled to Closed construction ground from air compressor warehouse that was being moved. 1035855 01/16/2013 Belews Lake — Water Slight oil sheen from roof Closed CCW discharge drain (fuel oil spill on roof). 1- 2 gallons spilled N/A 01/29/2013 Belews Lake — Water Sanitary waste water from Closed CCW discharge clogged pipe overflowed into lake drain Non- 09/08/2013 South side of Soil Non -PCB oil spill from Closed reportable plant near conservator bladder on transformers transformer 1065083 11/6/2013 Belews Lake — Water Slight oil sheen from residue Closed CCW discharge on transformers. Approximately 1 quart of oil spilled NA 5/30/2014 South side of Soil 9000 gallons of Non -PCB oil Closed plant near spill from tanker truck due to transformers landing gear failure. 1084720 06/03/2014 Belews Lake — Water Slight oil sheen from oil trap Closed CCW discharge tank at transformers. Less than 2 gallons spilled. 1090174 07/24/2014 Belews Lake — Water Slight oil sheen on lake. Est. Closed CCW discharge less than 1 quart of oil. NA 04/13/2015 South side of Soil 5 gallons of non -PCB oil Closed plant near spilled to ground from transformers transformer Belews Creek Steam Station Page 1 of 1 Table 3-1. Range (1 01h percentile _ 901h percentile) in Bulk Composition of Fly Ash, Bottom Ash, Rock, and Soil. (Source: EPRI 2009a) Aluminum, mg/kg Calcium, mg/kg Iron, mg/kg Silicon, mg/kg Mognesium, mg/kg Potassium, mg/kg Sodium, mg/kg Suhi, mg/kg Titanium, rnq/kq Antimony, mg/kg Arsenic, rr1q/kq Barium, mg/kg Beryllium, mg/kg Boron, mg/kg Cadmium, mg/kg Chromium, mg/kg Copper, mg/kg Lead, mg/kg Manganese, mg/kg Mercury, mg/kg Molybdenum, mg/kg Nickel, mg/kg Selenium, mg/kg Strontium, mg/kg Thallium, mg/kg Uranium, mg/kg Vanadium, mg/kg Zinc, mg/kg 70,000 - 140,000 7,400 - 150,000 34,000 - 130,000 160,000- 270,000 3,900 - 23,000 6,200 - 21,000 1,700 - 17,000 1,900 - 34,000 4,300 - 9,000 BIDIL - 16 22-260 380-5100 2.2-26 120- IGW BDL - 3.7 27-300 62-220 21' -230 91 -700 0.01 - 0.51 9.0-60 47-230 1.a- 18 270-310D BDL - 45 BDL - 19 BDL - 360 63-680 59,000 - 130,000 5,700 - 150,000 40,000 - 160,000 160,000 - 280,000 3,400 - 17,000 4,600 - 18,000 1,600 - 11,000 13131 - 15,000 4,100 - 7,200 All BOIL 2.6-21 380-3600 0,21-14 BDL- 335 All BDL 51 -1100 39-120 9,800 - 96,000 6,000 - 83,000 8,800 - 95,00,0 57,000 - 380,000 700 - 56.000 4,000- 45,000 900-34,000 200 - 42,004 200-5,400 0,08-1.8 0.50-14 67-1,400 0.1 D - 4.4 02-220 05-3.6 1 N - 310 10-120 81 -53 3.8-44 85-890 175-1400 BDL - 0.07 0.1 -2.0 3.8-27 10-16 39-440 2.0-220 BIDIL - 4.2 0.60-4.9 270 -2000 61 -890 All BDL 0.1 -1-8 BDL - 16 0.84-43 BDL - 250 19-330 16-370 25-140 15 tow - 100,000 1,50D - 62,000 7,000 - 50,000 230,0DO - 390,000 I'GDO - I 5'ODO 4,500 - 25,000 l,OW - 20,000 840-1,500 1,000 - 5.GW BDL - 13 2.0- 12 200-1,000 BDL - 2.0 BDL - 70 BDL - 05 15-100 5.0-50 BDL - 30 100 -1, 00O 0.02 - 0.19 All BDL 5-30 BDL - 0.75 20-500 020-0.70 1.2-3.9 20-150 22-99 BDL - Below Detection Limit * Source for most fly ash and bottom ash data is EPRI CP-INFO Dalabasal. Beryllium, thallium, mercury (bot- tom ash only) and boron (bottom ash only) are from the EPRI PISCES DalabaS96 Source for rock data is US Geological Survey National Geochernicall clat-obase .7 Source for most soils data is ShocklQtte and Boerngen (1984)8; cadmium and thallium data are from Smith et al (2005).1 Belews Creek Steam Station Page 1 of 1 Table 4-1. Public and Private Water Supply Wells Within 0.5-Mile Radius of Beiews Creek Steam Station Ash Basin Compliance Boundary Well ID Approximate Well Casing Public Water Property Address Reported Well Distance from Ash Direction from Well Depth Well Yield (shown on System Name (well location) Parcel ID Number Use Basin Compliance Ash Basin (ft-bgs) Depth (gpm) Figure 1) Boundary (ft) (ft-bgs) PWS: Withers Chapel 2793 Pine Hall Rd, Belews Transient, NCO285432 UMC Creek, NC 27009 6982-00-79-8715 Non -Community 1350 NE N/A N/A 40 Assumed Private Water Supply Well 2690 Pine Hall Rd, Belews 37 N/A Creek, NC 27009 6983-00-80-3799 Private, Unknown 2480 NE N/A N/A N/A Shared drive with 2690 Pine 39 N/A Hall Road, Belews Creek, NC 6983-00-72-6607 Private, Unknown 1880 NE N/A N/A N/A 2766 Pine Hall Road, Belews 33 N/A Creek, NC 27009 6983-00-70-8158 Private, Unknown 1600 NE N/A N/A N/A 2531 Middleton Loop, Walnut 36 N/A Cove, NC 27052 6983-00-62-7082 Private, Unknown 320 N-NE N/A N/A N/A 2465 Middleton Loop, Walnut 38 N/A Cove, NC 27052 6983-00-50-8497 Private, Unknown 1080 N-NE N/A N/A N/A Shared drive with 2465 35 N/A Middleton Loop, Walnut Cove, 6983-00-51-8097 Private, Unknown 1680 N-NE N/A N/A N/A 1051 Old Plantation Rd, 3 N/A Walnut Cove, NC 27052 6972-00-83-5098 Private, Unknown 1880 SW N/A N/A N/A 1045 Old Plantation Road, 6 N/A Walnut Cove, NC 27052 6972-00-72-6478 Private, Unknown 2000 SW N/A N/A N/A 1050 Georgia Road, Walnut 4 N/A Cove, NC 27052 6982-00-01-4573 Private, Unknown 1560 SW N/A N/A N/A 3921 Pine Hall Road, Walnut 2 N/A Cove, NC 27052 6982-00-02-0498 Private, Unknown 1360 SW N/A N/A N/A 3881 Pine Hall Road, Walnut 7 N/A Cove, NC 27052 6982-00-02-3366 Private, Unknown 1240 SW N/A N/A N/A Field Identified Private Water Supply Well 2832 Pine Hall Road, Belews 41 N/A Creek, NC 27009 6982-00-79-2781 Assumed Domestic 920 NE N/A N/A N/A 2531 Middleton Loop, Walnut 43 N/A Cove, NC 27052 6983-00-62-7082 Assumed Domestic 160 NE N/A N/A N/A 2531 Middleton Loop, Walnut 44 N/A Cove, NC 27052 6983-00-62-7082 Assumed Domestic 240 NE N/A N/A N/A 2481 Middleton Loop, Walnut 42 N/A Cove, NC 27052 6982-00-69-1695 Assumed Domestic 310 N-NE N/A N/A N/A 2461 Middleton Loop, Walnut 45 N/A Cove, NC 27052 6983-00-60-1271 Assumed Domestic 920 N-NE N/A N/A N/A 1180 Old Plantation Road, 11 N/A Walnut Cove, NC 27052 6972-00-94-4178 Assumed Domestic 1600 W-SW N/A N/A N/A 1190 Old Plantation Road, 12 N/A Walnut Cove, NC 27052 6972-00-84-8281 Assumed Domestic 2080 W-SW N/A N/A N/A 1235 Old Plantation Road, 13 N/A Walnut Cove, NC 27052 6972-00-84-3161 Assumed Domestic 2600 W-SW N/A N/A N/A 1270 Old Plantation Road, 10 N/A Walnut Cove, NC 27052 6972-00-84-3844 Assumed Domestic 2600 W-SW N/A N/A N/A Belews Creek Steam Station Page 1 of 3 Table 4-1. Public and Private Water Supply Wells Within 0.5-Mile Radius of Beiews Creek Steam Station Ash Basin Compliance Boundary Well ID Approximate Well Casing Public Water Property Address Reported Well Distance from Ash Direction from Well Depth Well Yield (shown on System Name (well location) Parcel ID Number Use Basin Compliance Ash Basin (ft-bgs) Depth (gpm) Figure 1) Boundary (ft) (ft-bgs) 1115 Old Plantation Road, 23 N/A Walnut Cove, NC 27052 6972-00-93-0491 Assumed Domestic 1920 SW N/A N/A N/A 1085 Old Plantation Road, 22 N/A Walnut Cove, NC 27052 6972-00-93-1098 Assumed Domestic 16800 SW N/A N/A N/A 2588 Martin Luther King Jr. 17 N/A Road, Walnut Cove, NC 27052 6972-00-81-9891 Assumed Domestic 2600 SW N/A N/A N/A 4067 Pine Hall Road, Walnut 21 N/A Cove, NC 27052 6972-00-91-4415 Assumed Domestic 2520 SW N/A N/A N/A 4011 Pine Hall Road, Walnut 9 N/A Cove, NC 27052 6972-00-92-5008 Assumed Domestic 1680 SW N/A N/A N/A 3981 Pine Hall Road, Walnut 16 N/A Cove, NC 27052 6972-00-92-6311 Assumed Domestic 1910 SW N/A N/A N/A 3965 Pine Hall Road, Walnut 15 N/A Cove, NC 27052 6972-00-92-7363 Assumed Domestic 1640 SW N/A N/A N/A 3881 Pine Hall Road (SR 24 N/A 1904), Walnut Cove, NC 27052 6982-00-02-3366 Assumed Domestic 1080 SW N/A N/A N/A 3857 Pine Hall Road, Walnut 18 N/A Cove, NC 27052 6982-00-02-7581 Assumed Domestic 960 SW N/A N/A N/A 3857 Pine Hall Road, Walnut 19 N/A Cove, NC 27052 6982-00-02-7581 Assumed Domestic 970 SW N/A N/A N/A 1051 Old Plantation Rd, 28 N/A Walnut Cove, NC 27052 6972-00-83-5098 Domestic --drinking, irrigation 2170 SW 825 82 2 3946 Pine Hall Rd, Walnut 25 N/A Cove, NC 27052 6972-00-93-5203 Domestic --drinking, water 1550 SW 305 115 15 3951 Pine Hall Rd, Walnut 29 N/A Cove, NC 27052 6972-00-92-8374 Domestic 1520 SW 205 75 2 3906 Pine Hall Rd, Walnut 30 N/A Cove, NC 27052 6982-00-03-5785 Domestic 630 SW 205 85 15 1140 Old Plantation Rd, Domestic --drinking, 26 N/A Walnut Cove, NC 27052 6972-00-93-3833 irrigation, livestock 1580 SW 500 N/A N/A 1413 Middleton Loop Rd, 34 N/A Walnut Cove, NC 27052 6982-00-06-5073 Domestic 160 W 500 40 50 2816 Pine Hall Rd, Belews 46 N/A Creek, NC 27009 6982-00-79-4809 Domestic 1180 NE N/A N/A N/A 1184 Old Plantation Rd, 27 N/A Walnut Cove, NC 27052 6972-00-94-8482 Domestic 1210 SW N/A N/A N/A 1245 Middleton Loop, Walnut 32 N/A Cove, NC 27052 6982-00-14-2869 Domestic --drinking, irrigation 400 W 500 N/A N/A 1020 Old Plantation Road, 20 N/A Walnut Cove, NC 27052 6972-00-92-4437 Domestic --drinking 1760 SW N/A N/A N/A 1413 Middleton Loop, Walnut 31 N/A Cove, NC 27052 6982-00-06-5073 Domestic- livestock 1000 W 500 N/A N/A 2241 Middleton Loop, Walnut 40 N/A Cove, NC 27052 6983-00-40-2365 Domestic --drinking 1000 N 70 60 N/A 3906 Pine Hall Road, Walnut 14 N/A Cove, NC 27052 6982-00-03-5785 Domestic --drinking 960 SW 250 N/A N/A Belews Creek Steam Station Page 2 of 3 Table 4-1. Public and Private Water Supply Wells Within 0.5-Mile Radius of Beiews Creek Steam Station Ash Basin Compliance Boundary Well ID Approximate Well Casing Public Water Property Address Reported Well Distance from Ash Direction from Well Depth Well Yield (shown on System Name (well location) Parcel ID Number Use Basin Compliance Ash Basin (ft-bgs) Depth (gpm) Figure 1) Boundary (ft) (ft-bgs) 3939 Pine Hall Road, Walnut 8 N/A Cove, NC 27052 6972-00-92-9441 Domestic --drinking 1520 SW N/A N/A N/A 3942 Pine Hall Road, Walnut 5 N/A Cove, NC 27052 6972-00-93-8159 Domestic --drinking, water 1280 SW N/A N/A N/A 1220 Old Plantation Rd, 1 N/A Walnut Cove, NC 27052 6972-00-94-2658 Domestic --drinking, irrigation 2400 W-SW 425 N/A N/A 1230 Old Plantation Rd, Domestic --drinking, 47 N/A Walnut Cove, NC 27052 6972-00-94-1906 irrigation, livestock 2500 W-SW 200 N/A N/A 3906 Pine Hall Road, Walnut 49 N/A Cove, NC 27052 6982-00-03-5785 Not in use 960 SW N/A N/A N/A 3906 Pine Hall Road, Walnut 48 N/A Cove, NC 27052 6982-00-03-5785 Domestic --drinking 960 SW 250 N/A N/A 4056 Pine Hall Rd, Belews 50 N/A Creek, NC 27009 6972-00-91-7610 Domestic --drinking 2630 SW N/A N/A N/A Belews Creek Steam Station Page 3 of 3 Table 4-2. Property Owner Addresses Contiguous to the Ash Basin Waste Boundary Map ID # Parcel ID # Property Address Street City State ZIP Code 1 6983-00-13-6741 1865 PIPE PLANT RD Walnut Cove NC 6983-00-13-6741 2 6983-00-62-7082 2481 MIDDLETON LOOP Walnut Cove NC 6983-00-62-7082 3 6983-00-42-4076 2465 MIDDLETON LOOP Walnut Cove NC 6983-00-42-4076 4 6983-00-21-7894 2083 MIDDLETON LOOP Walnut Cove NC 6983-00-21-7894 5 6972-00-88-8667 OFF MIDDLETON LOOP RD Walnut Cove NC 6972-00-88-8667 6 6983-00-40-2365 2241 MIDDLETON LOOP Walnut Cove NC 6983-00-40-2365 7 6983-00-50-5110 2481 MIDDLETON LOOP Walnut Cove NC 6983-00-50-5110 8 6983-00-50-3111 SR 1909 Walnut Cove NC 6983-00-50-3111 9 6983-00-50-1123 SR 1909 Walnut Cove NC 6983-00-50-1123 10 6983-00-50-7008 SR 1909 Walnut Cove NC 6983-00-50-7008 11 6982-00-79-2781 2832 PINE HALL RD Walnut Cove NC 6982-00-79-2781 12 6982-00-69-1695 2451 MIDDLETON LOOP Walnut Cove NC 6982-00-69-1695 13 6982-00-69-1800 SR 1909 Walnut Cove NC 6982-00-69-1800 14 6982-00-59-8878 SR 1909 Walnut Cove NC 6982-00-59-8878 15 6983-00-62-7082 2481 MIDDLETON LOOP Walnut Cove NC 6983-00-62-7082 16 6983-00-62-7082 2481 MIDDLETON LOOP Walnut Cove NC 6983-00-62-7082 17 6982-00-18-5694 SR 1909 Walnut Cove NC 6982-00-18-5694 18 6982-00-06-5073 1397 MIDDLETON LOOP Walnut Cove NC 6982-00-06-5073 19 6982-00-14-2869 1245 MIDDLETON LOOP Walnut Cove NC 6982-00-14-2869 20 6982-00-14-1466 577 MIDDLETOWN RD Walnut Cove NC 6982-00-14-1466 21 6982-00-03-5785 3906 PINE HALL RD Walnut Cove NC 6982-00-03-5785 22 6982-00-03-5785 3906 PINE HALL RD Walnut Cove NC 6982-00-03-5785 23 6982-00-02-7581 3857 PINE HALL RD Walnut Cove NC 6982-00-02-7581 24 6982-00-02-3366 3881 PINE HALL RD Walnut Cove NC 6982-00-02-3366 25 6983-00-42-4076 SR 1909 Walnut Cove NC 6983-00-42-4076 Belews Creek Steam Station Page 1 of 1 Table 6-1. Soil Mineralogy Results Boring ID Lab Performing Analysis Unique Lab Identifier Sample Depth (ft bgs) Soil Mineralogical Composition (wt %) Quartz Feldspar Plagioclase K-Feldspar Vermiculite/Illite Kaolinite Biotite Smectite Chlorite Illite Mica/Illite Muscovite/Illite Phlogopite GWA-7S American Assay BC-01 42.5-43.5 22.1 3.9 - - 17.2 13.8 - 43.9 - GWA-5Sa American Assay BC-02 28.0-35.0 60.3 26.1 - - - 8.1 - - 1 4.5 - BG-2S American Assay BC-03 55.0-60.0 66.5 17.7 - - - 5 - - 6.3 4.6 - - - BG-2D Technology of Materials BC-08 55 65 - 5 - 5 15 - 3 5 - 2 - - GWA-7D Technology of Materials BC-09 44 65 - 1 - 2 10 - 10 10 - 2 - - GWA-1 OD Technology of Materials BC-10 44-49 80 - 3 - 2 5 - 1 1 - 10 - - GWA-11 D Technology of Materials BC-11 42 70 - 3 - 5 5 - <1 1 - 15 - - AB-9D Technology of Materials BC-12 45 78 - 2 - 5 12 - <1 <1 - 3 - BG-3S Technology of Materials BC-13 40-42 77 - 2 - 1 15 - <1 <1 - 5 - - AB-2S Technology of Materials BC-14 80-81.5 80 - 1 - 4 10 - 1 <1 - 5 - - GWA-3D Technology of Materials BC-15 44 78 - 10 - 2 5 - 1 <1 - 5 - - GWA-12D Technology of Materials BC-16 25-27 78 - 1 - 2 10 - 1 <1 - 8 - - AB-9D Technology of Materials BC-17 60-61 75 - 5 - 2 15 - 1 <1 - 3 - - AB-2SA Technology of Materials BC-18 64 79 - 3 - 2 10 - 1 <1 - 5 - - GWA-5D Technology of Materials BC-19 33 84 - 3 - 2 5 - 1 <1 - 5 - - AB-3D Technology of Materials BC-20 45-50 74 - 2 - 3 10 - 1 <1 - 10 - - AB-3S Technology of Materials BC-21 28 74 - 1 - 3 10 - 2 <1 - 10 - - AB-8D Technology of Materials BC-22 59-60.5 85 - 3 - 1 3 - 1 <1 - 7 - - GWA-9GTA PMET BC-24 56-57.5 32.4 - 4.5 - - 11.5 - - - - - 29.4 3.5 AB-6GTB PMET BC-25 28 55.5 - - 0.9 - 15.6 - - - - - 5.3 - AB-4D PMET BC-26 75-75.5 48.4 - 18.7 6.2 - - - - - - - 4.8 - AB-5D PMET BC-27 57-59 37.1 - 1.8 10.8 - 16.3 - - - - - 10.2 - GWA-16D PMET BC-28 45-46.5 36.8 - 3.1 - - 17.2 - - - - - 15.2 - Notes: 1. PMET notes that samples contain amorphous smectite clays, amorphous mica, and/or amorphous iron oxide/hydroxide, but does not distinguish between them 2. Potassium Feldspar ('K-Feldspar') is a subclass of Alkali Feldspar. 3. Chemical composition of constituent minerals is as follows: Quartz - SiO2, Potassium Feldspar - (K,Na)[AlSi3O,], Plagioclase - Na[AlSi3O8]-Ca[Al2Si2O,], Vermiculite -(Mg,Ca)0.7(Mg,Fe+3,AI)6[(AI,Si)8020](OH)4.8H20, Illite - K1-1.5AI4[Si7-6.5AI1.1.5O20](OH)4, Kaolinite - AI41S Smectite -('/2Ca,Na)0.7(AI,Mg,Fe)4[(Si,AI)8O20](OH)4•nH2O, Chlorite -(Mg,AI,Fe)12[(Si,AI)$020](OH)16, Muscovite - K2AI4[Si6Al2020](OH,F)4, Phlogopite - K2(Mg,Fe+2)6[Si6A12020](OH,F)4, Lizardite - M93(Si2O5)(OH)4, Epidote - Ca2Fe+3Al20.OH•Si2O7•SiO4, Ilmenite - FeTiC 4. ft bgs = feet below ground surface Belews Creek Steam Station Page 1 of 2 Table 6-1. Soil Mineralogy Results Boring ID Lab Performing Analysis Unique Lab Identifier Sample Depth (ft bgs) Lizardite Epidote Vermiculite Ilmenite Goethite Amorphous GWA-7S American Assay BC-01 42.5-43.5 - - - - - - GWA-5Sa American Assay BC-02 28.0-35.0 - - - - - - BG-2S American Assay BC-03 55.0-60.0 - - - - - - BG-2D Technology of Materials BC-08 55 - - - - - - GWA-7D Technology of Materials BC-09 44 - - - - - - GWA-1 OD Technology of Materials BC-10 44-49 - - - - - - GWA-11 D Technology of Materials BC-11 42 - - - - - - AB-9D Technology of Materials BC-12 45 - - - - - - BG-3S Technology of Materials BC-13 40-42 - - - - - - AB-2S Technology of Materials BC-14 80-81.5 - - - - - - GWA-3D Technology of Materials BC-15 44 - - - - - - GWA-12D Technology of Materials BC-16 25-27 - - - - - - AB-9D Technology of Materials BC-17 60-61 - - - - - - AB-2SA Technology of Materials BC-18 64 - - - - - - GWA-5D Technology of Materials BC-19 33 - - - - - - AB-3D Technology of Materials BC-20 45-50 - - - - - - AB-3S Technology of Materials BC-21 28 - - - - - - AB-8D Technology of Materials BC-22 59-60.5 - - - - - - GWA-9GTA PMET BC-24 56-57.5 - 3.3 - 0.5 - 14.9 AB-6GTB PMET BC-25 28 - 0.7 - - 1.6 20.4 AB-41D PMET BC-26 75-75.5 0.7 7.3 - - - 13.9 AB-51D PMET BC-27 57-59 - 4.7 - - - 19.1 GWA-16D PMET BC-28 45-46.5 - 1.9 0.6 0.3 - 24.9 Notes: 1. PMET notes that samples contain amorphous smectite clays, amorphous mica, and/or amorpho 2. Potassium Feldspar ('K-Feldspar') is a subclass of Alkali Feldspar. 3. Chemical composition of constituent minerals is as follows: Quartz — SiO2, Potassium Feldspar i4O10](01-16 Biotite — 1<2(Mg,Fe+2)6_,(Fe+3 AI,Ti)0_2[Sis_SAI2_1020](OH,F)4, Smectite —('/2Ca,Na)0.7(AI,Mg,Fe)4[(Si,AI)8O20](OH)4•nH2O, Chlorite — (Mg,AI,Fe)121(Si,AI)$0201(O3, Goethite — a-FeO.OH 4. ft bgs = feet below ground surface Belews Creek Steam Station Page 2 of 2 Table 6-2. Soil Chemistry Results, Oxides Boring ID Lab Performing Analysis Unique Lab Identifier Sample Depth (ft bgs) Oxide Composition, Loss on Ignition, Carbon, and Sulfur (wt. %) AI203 BaO CaO Cr203 Fe203 K20 MgO MnO Na20 P201 S102 SrO T102 V201 LOI C S GWA-7S American Assay BC-01 42.5'-43.5' 20.64 0.09 0.28 0.01 9.4 0.33 1.48 0.1 0.06 0.13 64.21 <0.01 1.67 0.02 7.55 0.09 0.005 GWA-5Sa American Assay BC-02 28.0'-35.0' 19.75 0.05 0.85 <0.01 3.06 2.03 0.68 0.07 0.9 0.02 64.62 0.02 0.34 <0.01 5.4 0.052 <0.005 BG-2S American Assay BC-03 55.0'-60.0' 19.9 0.1 0.26 <0.01 3.75 2.52 0.8 0.08 0.44 0.01 65.45 0.01 0.36 <0.01 6.62 0.075 <0.005 BG-2D Technology of Materials BC-08 55' 21.8 0.13 0.36 - 9.53 3.83 2.28 0.64 0.13 51.1 0.93 - 6.5 <0.02 <0.05 GWA-7D Technology of Materials BC-09 44' 18.3 0.09 0.62 12 2.41 4.18 0.19 0.22 47.2 1.57 6.3 <0.02 <0.05 GWA-10D Technology of Materials BC-10 44'-49' 22.8 0.08 0.76 9.26 4.4 2.51 1.2 0.16 59 1.04 2.5 <0.02 0.07 GWA-11 D Technology of Materials BC-11 42' 24.8 0.08 0.06 8.67 4.37 1.54 0.49 0.19 56.3 0.98 5 <0.02 <0.05 AB-9D Technology of Materials BC-12 45' 25.6 0.06 0.06 7.29 2.16 0.9 0.09 <0.05 50.6 1.04 7.4 <0.02 <0.05 BG-3S Technology of Materials BC-13 40-42' 23 0.06 0.03 6.29 2.63 0.91 0.2 0.11 59 0.62 6.6 <0.02 <0.05 AB-2S Technology of Materials BC-14 80-81.5' 24.1 0.06 0.01 6.67 3.67 1.12 0.15 0.18 53.6 1.19 6.4 <0.02 <0.05 GWA-3D Technology of Materials BC-15 44' 18.9 0.1 <0.01 2.81 4.16 0.87 2.39 <0.05 70.4 0.33 2.2 <0.02 <0.05 GWA-12D Technology of Materials BC-16 25-27' 22.3 0.1 <0.01 2.81 4.16 1.25 0.11 <0.05 64.7 0.33 4.8 <0.02 <0.05 AB-9D Technology of Materials BC-17 60'-61' 24.2 0.08 0.13 6.33 2.75 1 0.22 0.06 56.3 0.82 6.5 <0.02 <0.05 AB-2SA Technology of Materials BC-18 64' 25.5 0.08 0.04 6.11 2.9 0.92 0.19 0.06 53.7 0.71 6.4 <0.02 <0.05 GWA-5D Technology of Materials BC-19 33' 15.5 0.04 2.1 2.78 1.45 0.93 2.58 <0.05 74.9 0.25 2.2 <0.02 <0.05 AB-3D Technology of Materials BC-20 45-50' 24 0.06 0.06 6.86 3.07 0.94 0.28 0.08 54.8 0.81 6 <0.02 <0.05 AB-3S Technology of Materials BC-21 28' 26.4 0.06 0.01 8.03 2.99 0.98 0.3 0.09 49.1 0.97 6.8 <0.02 <0.05 AB-8D Technology of Materials BC-22 59'-60.5' 21.4 0.08 1.48 6.97 4.06 2.04 - 2.12 0.18 60.4 0.92 9.7 <0.02 <0.05 GWA-9GTA American Assay BC-24 56-57.5 18.71 0.08 0.55 0.02 6.45 1.52 1.64 0.09 0.68 0.16 65.36 0.01 0.91 0.02 4.04 0.02 <0.005 AB-6GTB American Assay BC-25 28 13.37 0.02 0.16 0.01 3.63 0.61 0.28 0.01 0.06 0.04 74.97 - 0.55 0.01 5.43 0.154 <0.005 AB-4D American Assay BC-26 75-75.5 12.18 0.04 3.16 0.02 3.16 1.5 0.65 0.03 1.22 0.05 70.16 0.03 0.38 0.01 1.79 0.085 <0.005 AB-5D American Assay BC-27 57-59 16.39 0.12 1.21 0.02 3.43 1.55 0.75 0.04 0.53 0.04 71.01 0.01 0.41 0.01 4.59 0.029 <0.005 GWA-16D American Assay BC-28 45-46.5 17.18 0.08 0.55 0.02 6 1.41 1.68 0.03 0.55 0.09 67.62 0.69 0.03 5.8 0.214 <0.005 Notes: 1. ft bgs = feet below ground surface Belews Creek Steam Station Page 1 of 1 Table 6-3. Soil Chemistry Results, Elemental Boring ID Unique Lab Identifier Lab Performing Analysis Sample Depth (ft bgs) Elemental Composition (ppm) As Cd Ce Co Cu Cr Ga La Mo Ni Pb Sb Se Sn Sr U V W Zn Zr GWA-7S American Assay BC-01 42.5'-43.5' <1 <0.2 128 32 25 23 59 <1 35 80 <1 <1 <1 2 57 27 GWA-5Sa American Assay BC-02 28.0'-35.0' 21 <0.2 4 6 11 12 2 <1 14 20 1 <1 <1 1 55 7 BG-2S American Assay BC-03 55.0'-60.0' 31 <0.2 1 8 8 14 <1 <1 41 17 2 <1 2 - - - 1 58 38 13G-21D Technology of Materials BC-08 55' <20 31 78 112 <10 47 16 - - 128 107 <20 175 13 171 - GWA-7D Technology of Materials BC-09 44' <20 52 <10 265 <10 123 <10 148 106 <20 194 <10 223 GWA-10D Technology of Materials BC-10 44'-49' 35 32 41 207 15 55 30 131 172 <20 144 15 143 GWA-11 D Technology of Materials BC-11 42' 35 37 42 142 <10 52 39 104 96 <20 127 11 162 AB-91D Technology of Materials BC-12 45' <20 29 20 70 <10 23 19 76 59 <20 117 <10 69 BG-3S Technology of Materials BC-13 40-42' <20 35 26 93 <10 18 19 62 46 <20 85 13 92 AB-2S Technology of Materials BC-14 80-81.5' <20 38 17 53 <10 40 37 79 66 <20 93 14 156 GWA-31D Technology of Materials BC-15 44' <20 <10 <10 97 <10 <10 13 <50 170 <20 22 <10 41 GWA-12D Technology of Materials BC-16 25-27' <20 10 23 52 <10 <10 23 <50 88 <20 22 <10 93 AB-9D Technology of Materials BC-17 60'-61' <20 23 13 55 <10 17 27 69 78 <20 96 11 76 A13-2SA Technology of Materials BC-18 64' <20 24 21 66 <10 25 25 58 75 <20 86 10 71 GWA-51D Technology of Materials BC-19 33' <20 <10 <10 112 <10 <10 <10 <50 196 <20 21 <10 52 AB-3D Technology of Materials BC-20 45'-50' <20 31 30 87 <10 34 28 78 65 <20 97 <10 93 AB-3S Technology of Materials BC-21 28' 28 36 36 91 <10 44 28 114 79 <20 126 11 93 AB-81D Technology of Materials BC-22 59'-60.5' 42 24 27 97 <10 38 18 100 220 <20 110 <10 101 - GWA-9GTA American Assay BC-24 56-57.5 43 0.4 67 24 44 - 28 30 4 52 26 <1 <1 7 - - - 4 111 52 AB-6GTB American Assay BC-25 28 6 <0.2 25 6 21 16 10 2 16 16 1 <1 <1 <1 <1 26 18 AB-4D American Assay BC-26 75-75.5 4 <0.2 39 6 16 14 21 9 8 19 <1 <1 1 <1 29 9 AB-5D American Assay BC-27 57-59 6 <0.2 110 8 14 18 68 5 16 20 <1 <1 3 <1 36 20 GWA-16D American Assay BC-28 45-46.5 5 0.3 34 16 123 21 21 6 50 19 <1 <1 4 2 103 23 1. ppm = parts per million 2. ft bgs = feet below ground surface Belews Creek Steam Station Page 1 of 1 Table 6-4. Transition Zone Mineralogy Boring ID Lab Performing Analysis Unique Lab Identifier Sample Depth (ft bgs) Mineralogical Composition (wt %) Quartz Feldspars Illite Kaolinite Biotite Calcite Dolomite GWA-2D American Assay BC-04 56.5-56.7 15.0 42.6 42.4 - GWA-5D American Assay BC-05 53.9-54.1 13.8 13.1 73.1 - - GWA-3D American Assay BC-06 54-56 15.1 15.7 70.2 - - BG-3D American Assay BC-07 59.6-59.9 26.2 6.8 46.5 20.4 - GWA-5BR American Assay BC-23 47-48 36.4 42.0 - 21.7 - AB-5D American Assay BC-29 97-97.3 31.7 59.5 - 8.7 <0.1 <0.1 Notes: 1. Chemical composition of constituent minerals is as follows: Quartz — S'02, Feldspar — (K,Na)[AISi3O8]-Ca[Al2Si2O8], Illite — K1.1.5AI4[Si7.6.5AI1.1.5O20](OH)4, Kaolinite — AI4[Si4O10](OH)8, Biotite — K2(Mg,Fe+2)6_4(Fe+3,AI,Ti)0-2[Sil-5A'2s020](OH,F)4, Calcite — CaCO3, Dolomite — CaMg(CO3)2 2. ft bgs = feet below ground surface Belews Creek Steam Station Page 1 of 1 Table 6-5. Oxide Composition of Transition Zone Samples Boring ID Lab Performing Analysis Unique Lab Identifier Sample Depth (ft bgs) Oxide Composition (wt. %) A1203 BaO CaO Cr203 Fe203 K20 MgO MnO Na20 P201 Si02 SrO Ti02 V201 GWA-21D American Assay BC-04 56.5-56.7 16.65 0.07 1.18 <0.01 2.96 2.58 0.57 0.05 1.77 0.12 69.56 0.02 0.41 <0.01 GWA-51) American Assay BC-05 53.9-54.1 15.83 0.04 5.97 0.01 5.84 0.70 1.90 0.10 1.55 0.11 64.92 0.05 0.39 0.03 GWA-3D I American Assay BC-06 54-56 15.86 0.04 3.78 <0.01 3.64 1.17 0.47 0.07 1.81 0.06 66.57 0.04 0.29 <0.01 BG-3D American Assay BC-07 59.6-59.9 15.38 0.06 0.61 <0.01 5.89 1.19 0.73 0.14 0.30 0.07 71.70 0.01 0.67 0.02 GWA-5BR American Assay BC-23 47-48 14.59 0.03 7.61 <0.01 6.39 1.33 2.87 0.11 1.10 0.10 66.60 0.03 0.49 0.04 AB-5D American Assay BC-29 97-97.3 13.17 0.05 1.69 <0.01 3.16 1.73 0.77 0.13 1.85 0.08 72.01 <0.01 0.32 <0.01 Notes: 1. ft bgs = feet below ground surface Belews Creek Steam Station Page 1 of 1 Table 6-6. Elemental Composition of Transition Zone Samples Boring ID Lab Performing Analysis Unique Lab Identifier Sample Depth (ft bgs) Elemental Composition (ppm) As Cd Ce Co Cu Ga La Mo Ni Pb Sb Se Sn W Zn Zr GWA-2D American Assay BC-04 56.5-56.7 17 <0.2 39 6 5 13 16 3 3 25 <1 <1 9 <1 39 33 GWA-5D American Assay BC-05 53.9-54.1 <1 <0.2 54 15 12 14 28 <1 7 14 <1 <1 <1 <1 50 4 GWA-3D American Assay BC-06 54-56 1 <0.2 106 6 6 12 49 <1 2 16 <1 <1 <1 <1 21 4 BG-3D American Assay BC-07 59.6-59.9 2 <0.2 60 22 25 12 28 1 14 16 <1 <1 1 <1 44 13 GWA-5BR American Assay BC-23 47-48 1 <0.2 49 23 66 18 18 <1 11 10 <1 <1 4 <1 38 3 AB-5D American Assay BC-29 97-97.3 <1 <0.2 58 7 69 14 17 <1 4 23 <1 <1 8 <1 41 12 Notes: ft bgs = feet below ground surface 2. ppm = parts per million Belews Creek Steam Station Page 1 of 1 Table 6-7. Whole Rock Chemistry Results, Oxides Boring ID Lab Performing Analysis Unique Lab Identifier Sample Depth (ft bgs) Oxide Composition, Loss on Ignition, Carbon, and Sulfur (wt. %) AI203 BaO CaO Cr203 Fe203 K20 MgO MnO Na20 P201 Si02 SrO Ti02 V201 LOI C S GWA-513R American Assay BC-30 81.5-81.7 16.7 0.03 6.7 0.02 5.6 1.9 1.4 0.1 1.5 0.05 69.0 0.03 0.4 0.0 1.32 0.148 0.103 AB-413R American Assay BC-31 130.75-131 15.4 0.04 5.2 0.03 3.6 1.5 1.1 0.07 1.5 0.06 68.7 0.04 0.4 0.0 1.35 0.061 0.033 A13-81D American Assay BC-AB-8D-1 69.9-70.4 15.4 0.04 1.3 0.03 2.5 1.6 0.4 0.02 1.9 0.04 74.3 0.01 0.4 <0.01 1.07 0.025 0.005 BG-31D American Assay BC-BG-3D-1 67.7-68.0 18.6 0.04 1.5 0.03 4.4 2.3 0.6 0.05 1.4 0.11 65.4 0.01 0.7 0.0 1.85 0.013 <0.005 GWA-21D American Assay BC-GWA-2D-1 68.9-69.4 21.7 0.06 1.1 0.03 8.0 3.0 1.3 0.08 0.9 0.06 63.4 <0.01 1.1 0.0 2.88 0.073 0.009 MW-202BR American Assay BC-MW-202BR-1 102.9-103.3 16.5 0.02 2.4 0.02 2.8 1.2 0.9 0.05 2.1 0.08 70.6 0.02 0.5 <0.01 1.12 0.038 <0.005 Notes: ft bgs = feet below ground surface Belews Creek Steam Station Page 1 of 1 Table 6-8. Whole Rock Chemistry Results, Elemental Boring ID Lab Performing Analysis Unique Lab Identifier Sample Depth (ft bgs) Elemental Composition (ppm) As Cd Ce Co Cu Ga La Mo Ni Pb Sb Se Sn W Zn Zr GWA-513R American Assay BC-30 81.5-81.7 <1 <0.2 16 11 16 21 13 <1 10 18 <1 <1 <1 <1 58 6 AB-413R American Assay BC-31 130.75-131 2 <0.2 105 6 8 17 24 3 6 14 1 <1 4 <1 22 9 AMID American Assay BC-AB-8D-1 69.9-70.4 1 <0.2 59 5 5 18 29 3 11 14 1 <1 2 1 28 9 BG-3D American Assay BC-BG-3D-1 67.7-68.0 9 <0.2 51 14 29 24 28 2 22 23 1 <1 14 3 42 28 GWA-2D American Assay BC-GWA-2D-1 68.9-69.4 24 <0.2 117 21 23 29 35 1 51 34 3 <1 13 2 93 22 MW-202BR American Assay BC-MW-202BR-1 102.9-103.3 4 <0.2 58 6 5 21 26 <1 5 15 1 <1 7 <1 31 25 Notes: 1. ft bgs = feet below ground surface 2. ppm = parts per million Belews Creek Steam Station Page 1 of 1 Table 6-9. Assesment Monitoring Well Construction Details Monitoring Well ID Number Monitoring Well Type Date Water Level was Obtained Elevation of Water Level Land Surface Elevation Top of Well Casing Elevation Screened Interval Elevation Screened Interval Bottom of Well Elevation Upgradient /Downgradient (ft) (ft) (ft) (ft) (ft below bgs) (ft bgs) AB-1 D Deep 7/7/2015 733.47 769.47 772.47 696.47 - 691.47 73.00 - 78.00 683.47 Downgradient AB-1 S Shallow 7/7/2015 731.58 769.49 772.42 734.49 - 719.49 35.00 - 50.00 717.49 Downgradient AB-2D Deep 7/7/2015 730.91 770.71 773.84 638.71 - 633.71 132.00 - 137.00 631.71 Downgradient AB-2S Shallow 7/7/2015 740.85 770.69 773.94 739.69 - 724.69 31.00 - 46.00 720.69 Downgradient AB-3D Deep 7/7/2015 722.99 769.80 772.51 658.80 - 653.80 111.00 - 116.00 651.80 Downgradient AB-3S Shallow 7/7/2015 731.23 769.92 772.62 733.92 - 718.92 36.00 - 51.00 714.92 Downgradient AB-4BR Bedrock 7/7/2015 755.04 759.24 761.99 621.74 - 616.74 137.50 - 142.50 614.74 Downgradient AB-4D Deep 7/7/2015 754.93 759.25 762.21 669.75 - 664.75 89.50 - 94.50 664.75 Downgradient AB-4S Shallow 7/7/2015 755.43 759.36 762.18 756.36 - 741.36 3.00 - 18.00 741.36 Downgradient AB-4SL Shallow 7/7/2015 755.05 759.15 762.25 707.85 - 697.85 51.30 - 61.30 697.85 Downgradient AB-5D Deep 7/7/2015 755.50 758.94 762.13 661.94 - 656.94 97.00 - 102.00 654.54 Downgradient AB-5S Shallow 7/7/2015 755.83 758.86 761.9 755.86 - 740.86 3.00 - 18.00 740.86 Downgradient AB-5SL Shallow 7/7/2015 756.65 759.01 761.85 725.01 - 715.01 34.00 - 44.00 715.01 Downgradient AB-6D Deep 7/7/2015 758.54 762.22 765.33 677.22 - 672.22 85.00 - 90.00 667.62 Downgradient AB-6S Shallow 7/7/2015 760.48 762.46 765.55 760.46 - 750.46 2.00 - 12.00 750.46 Downgradient AB-6SL Shallow 7/7/2015 760.38 762.38 765.5 749.08 - 744.08 13.30 - 18.30 744.08 Downgradient AB-7D Deep 7/7/2015 760.11 767.72 771.14 683.72 - 678.72 84.00 - 89.00 676.72 Downgradient AB-7S Shallow 7/7/2015 758.95 767.91 771.09 762.91 - 752.91 5.00 - 15.00 751.91 Downgradient AB-8D Deep 7/7/2015 756.90 762.10 765.38 690.10 - 685.10 72.00 - 77.00 677.40 Downgradient AB-8S Shallow 7/7/2015 757.18 762.16 765.1 758.16 - 743.16 4.00 - 19.00 741.16 Downgradient AB-8SL Shallow 7/7/2015 757.01 762.04 765.29 725.04 - 715.04 37.00 - 47.00 707.64 Downgradient AB-9BR Bedrock 7/7/2015 757.58 779.84 782.84 649.84 - 644.84 130.00 - 135.00 642.54 Downgradient AB-9D Deep 7/7/2015 758.12 779.69 782.84 689.69 - 684.69 90.00 - 95.00 681.69 Downgradient AB-9S Shallow 7/7/2015 762.46 779.74 783.15 766.74 - 751.74 13.00 - 28.00 748.74 Downgradient BG-1 D Deep 7/7/2015 757.54 805.63 808.48 758.63 - 753.63 47.00 - 52.00 748.63 Downgradient BG-1 S Shallow 7/7/2015 DRY 805.18 808.75 779.08 - 763.88 26.10 - 41.30 762.18 Downgradient BG-2BR Bedrock 7/7/2015 764.50 810.05 812.59 729.55 - 724.55 80.50 - 85.50 680.55 Upgradient BG-2D Deep 7/7/2015 763.92 809.95 812.13 739.95 - 734.95 70.00 - 75.00 729.95 Upgradient BG-2S Shallow 7/7/2015 762.09 809.72 811.8 769.72 - 754.72 40.00 - 55.00 749.72 Upgradient BG-3D Deep 7/7/2015 812.98 841.72 844.61 779.72 - 774.72 62.00 - 67.00 770.72 Upgradient BG-3S Shallow 7/7/2015 811.80 842.46 845.64 817.46 - 802.46 25.00 - 40.00 798.46 Upgradient GWA-1 D Deep 7/7/2015 714.44 740.90 743.03 682.90 - 677.90 58.00 - 63.00 669.40 Downgradient GWA-1 S Shallow 7/7/2015 715.76 740.72 743.08 721.72 - 706.72 19.00 - 34.00 704.72 Downgradient GWA-2D Deep 7/7/2015 745.22 784.58 787.51 726.58 - 721.58 58.00 - 63.00 714.58 Downgradient GWA-2S Shallow 7/7/2015 745.70 784.50 787.58 750.50 - 735.50 34.00 - 49.00 733.50 Downgradient GWA-3D Deep 7/7/2015 726.02 766.68 769.5 721.68 - 716.68 45.00 - 50.00 707.68 Downgradient GWA-3S Shallow 7/7/2015 726.08 766.51 769.14 739.51 - 724.51 27.00 - 42.00 723.51 Downgradient GWA-4D Deep 7/7/2015 752.63 799.63 802.88 735.63 - 730.63 64.00 - 69.00 725.63 Downgradient GWA-5BR Bedrock 7/7/2015 759.50 788.79 791.95 737.79 - 732.79 51.00 - 56.00 694.89 Downgradient GWA-5BR2 Bedrock 7/7/2015 757.99 789.03 792.11 709.03 - 704.03 80.00 - 85.00 680.03 Downgradient GWA-5D Deep 7/7/2015 760.37 788.46 791.29 736.66 - 731.66 51.80 - 56.80 727.96 Downgradient Belews Creek Steam Station Page 1 of 2 Table 6-9. Assesment Monitoring Well Construction Details Monitoring Well ID Number Monitoring Well Type Date Water Level was Obtained Elevation of Water Level Land Surface Elevation Top of Well Casing Elevation Screened Interval Elevation Screened Interval Bottom of Well Elevation Upgradient / Downgradient (ft) (ft) (ft) (ft) (ft below bgs) (ft bgs) GWA-5S Shallow 7/7/2015 760.52 788.88 792.04 765.88 - 750.88 23.00 38.00 748.88 Downgradient GWA-61D Deep 7/7/2015 753.49 790.93 793.25 689.93 - 684.93 101.00 106.00 681.93 Downgradient GWA-6S Shallow 7/7/2015 760.70 790.95 793.37 762.95 - 747.95 28.00 - 43.00 720.95 Downgradient GWA-71D Deep 7/7/2015 785.73 820.39 822.7 741.39 - 736.39 79.00 - 84.00 729.39 Downgradient GWA-7S Shallow 7/7/2015 786.79 820.37 822.87 792.87 - 777.87 27.50 - 42.50 776.87 Downgradient GWA-8D Deep 7/7/2015 801.95 828.61 831.15 739.61 - 734.61 89.00 - 94.00 731.61 Downgradient GWA-8S Shallow 7/7/2015 803.14 828.27 832.01 808.27 - 793.27 20.00 - 35.00 789.27 Downgradient GWA-91D Deep 7/7/2015 749.82 791.25 794.28 708.25 - 703.25 83.00 - 88.00 700.75 Downgradient GWA-9S Shallow 7/7/2015 750.88 790.77 793.99 754.77 - 739.77 36.00 - 51.00 737.77 Downgradient GWA-10D Deep 7/7/2015 739.20 747.04 749.54 697.04 - 692.04 50.00 - 55.00 683.04 Downgradient GWA-10S Shallow 7/7/2015 740.24 746.78 749.11 742.78 - 727.78 4.00 - 19.00 720.78 Downgradient GWA-11D Deep 7/7/2015 723.15 754.61 757.04 691.61 - 686.61 63.00 - 68.00 682.61 Downgradient GWA-11S Shallow 7/7/2015 725.72 754.49 757.03 731.49 - 716.49 23.00 - 38.00 696.49 Downgradient GWA-12BR Bedrock 7/7/2015 771.35 833.35 836.46 727.35 - 722.35 106.00 - 111.00 708.35 Upgradient GWA-12D Deep 7/7/2015 780.35 834.04 837.16 771.04 - 766.04 63.00 - 68.00 760.04 Upgradient GWA-12S Shallow 7/7/2015 781.22 832.65 835.79 792.65 - 777.65 40.00 - 55.00 773.65 Upgradient GWA-16D Deep 7/7/2015 747.37 781.66 784.53 723.66 - 718.66 58.00 - 63.00 712.66 Downgradient GWA-16S Shallow 7/7/2015 748.07 781.51 784.41 752.51 - 737.51 29.00 - 44.00 734.51 Downgradient GWA-17D Deep 7/7/2015 747.86 785.07 787.37 735.07 - 730.07 50.00 - 55.00 728.07 Downgradient GWA-17S Shallow 7/7/2015 748.19 785.07 787.61 760.07 - 745.07 25.00 - 40.00 743.57 Downgradient MW-200BR Bedrock 7/7/2015 Artesian 633.65 636.42 588.65 - 583.65 45.00 - 50.00 583.15 Downgradient MW-202BR Bedrock 7/7/2015 741.55 786.87 789.63 688.87 - 683.87 98.00 103.00 656.37 Upgradient MW-203BR Bedrock 7/7/2015 751.73 784.09 787.26 690.09 - 685.09 94.00 99.00 663.59 Upgradient Belews Creek Steam Station Page 2 of 2 Table 6-10. Voluntary and Compliance Monitoring Well Construction Details Monitoring Well ID Number Monitoring Well Type Date Water Level was Obtained Elevation of Water Level Land Surface Elevation Top of Well Casing Elevation Screened Interval Elevation Screened Interval Bottom of Well Elevation Upgradient / Downgradient (ft) (ft) (ft) (ft) (ft below bgs) (ft bgs) Voluntary Wells MW-101D Deep 7/7/2015 NS 670.90 674.04 638.6 633.6 32.30 37.30 633.6 Downgradient MW-101S Shallow 7/7/2015 NS 671.23 674.12 662.68 652.68 8.55 18.55 652.68 Downgradient MW-102D Deep 7/7/2015 NS 650.13 653.07 628.52 623.52 21.61 26.61 623.52 Downgradient MW-102S Shallow 7/7/2015 642.93 650.49 653.07 643.56 635.56 6.93 - 14.93 635.56 Downgradient MW-103D Deep 7/7/2015 676.28 681.39 684.25 658.89 651.89 22.50 - 29.50 651.89 Downgradient MW-103S Shallow 7/7/2015 677.15 681.16 684 672.73 667.73 8.43 - 13.43 667.73 Downgradient MW-104D Deep 7/7/2015 756.75 795.83 798.34 717.81 712.81 78.02 - 83.02 712.81 Downgradient MW-104S Shallow 7/7/2015 756.65 796.13 798.68 760.49 750.49 35.64 - 45.64 750.49 Downgradient Compliance Wells MW-200D Deep 7/7/2015 629.34 633.3 636.05 618.8 613.8 14.5 - 19.5 613.8 Downgradient MW-200S Shallow 7/7/2015 629.02 633.18 635.89 628.02 620.42 5.16 - 12.76 620.42 Downgradient MW-201D Deep 7/7/2015 748.13 781.26 783.98 747.12 737.12 34.14 - 44.14 737.12 Downgradient MW-202D Deep 7/7/2015 741.48 787.87 790.78 701.47 696.47 86.4 - 91.4 696.47 Upgradient MW-202S Shallow 7/7/2015 740.95 787.61 789.97 742.6 727.6 45.01 - 60.01 727.6 Upgradient MW-203D Deep 7/7/2015 752.25 783.37 785.57 696.51 691.51 86.86 - 91.86 691.51 Downgradient MW-203S Shallow 7/7/2015 752.24 783.46 786.14 755.95 740.95 27.51 - 42.51 740.95 Downgradient MW-204D Deep 7/7/2015 747.82 773.92 776.78 737.85 732.85 36.07 - 41.07 732.85 Downgradient MW-204S Shallow 7/7/2015 747.89 773.49 776.29 754.55 739.55 18.94 - 33.94 739.55 Downgradient Belews Creek Steam Station Page 1 of 1 Table 6-11. Hydraulic Gradient - Horizontal Well Pair Groundwater Elevation — Up- gradient Well Groundwater Elevation — Down -gradient Well Flow Path Length Horizontal Hydraulic Gradient (h 2) (h 1) (dl) W Surficial Aquifer (S wells) GWA8S/ MW200S 803.14 629.02 5,923.64 0.029 AB7S/AB5S 758.95 755.83 1,054.51 0.003 GWA5S/MW 103S 760.52 677.15 3,314.24 0.025 GWA9S/GWA11 S 750.88 725.72 4,154.35 0.006 GWA5S/MW200S 760.52 629.02 3,981.80 0.033 Average Horizontal Hydraulic Gradient 0.019 Transition Zone (Dwells) GWA8D/ MW200D 801.95 629.34 5,907.17 0.029 AB9D/AB5D 758.12 755.50 1,356.81 0.002 GWA7D/ABED 785.73 758.54 2,001.03 0.014 GWA9D/GWA11 D 749.82 723.15 4,163.49 0.006 GWA5D/MW200D 755.50 629.34 3,965.92 0.032 BG1 D/MW200D 757.54 629.34 3,970.24 0.032 GWA12D/MW202D* 780.35 629.34 886.79 0.170 Average Horizontal Hydraulic Gradient 0.041 Fractured Bedrock (BR wells) Not enough data to determine hydraulic gradient Notes: * Not used for average hydraulic gradient calculation Belews Creek Steam Station Page 1 of 1 Table 7-1. Soil and Ash Parameters and Analytical Methods INORGANIC COMPOUNDS UNITS METHOD Antimony mg/kg EPA 6020 Arsenic mg/kg EPA 6020 Barium mg/kg EPA 6010 Boron mg/kg EPA 6010 Cadmium mg/kg EPA 6020 Chloride mg/kg SM4500-CI-E Chromium mg/kg EPA 6010 Copper mg/kg EPA 6010 Iron mg/kg EPA 6010 Lead mg/kg EPA 6020 Manganese mg/kg EPA 6010 Mercury mg/kg EPA Method 7470A/7471 Nickel mg/kg EPA 6010 pH SU EPA 9045 Selenium mg/kg EPA 6020 Thallium (low level) mg/kg EPA 6020 Vanadium Mg/kg EPA 6020 Zinc mg/kg EPA 6010 Total Organic Carbon UNITS METHOD TOC Mg/kg EPA 9060 Notes: 1. Soil samples to be analyzed for Total Inorganics using USEPA Methods 6010/6020 and pH using USEPA Method 9045, as noted above. 2. Ash samples to be analyzed for Total Inorganics using USEPA Methods 6010/6020 and pH using USEPA Method 9045; select ash samples will also be analyzed for leaching potential using SPLP Extraction Method 1312 in conjunction with USEPA Methods 6010/6020. SPLP results to be reported in units of mg/L for comparison to 2L Standards. 3. Samples to be analyzed for Total Organic Carbon using method EPA 9060. Sample result in concentration units of mg/kg of organic carbon on a dry weight basis. Belews Creek Steam Station Page 1 of 1 Table 7-2. Ash Sample Results - Totals Analyte Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Chromium Cobalt Copper Iron CAS RN 7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-41-7 7440-42-8 7440-43-9 7440-47-3 7440-48-4 7440-50-8 7439-89-6 Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg NC PSRG Ind 100000 94 3 44000 460 46000 200 100000 70 9400 100000 NC PSRG Prot GW NS 0.9 5.8 580 63 45 3 360000 0.9 700 150 Sample Name Sample Date AB-4BR(7-8.5) 5/28/2015 1990 8 U 9.3 35.7 0.51 14.9 J 0.96 U 8.9 8 U 6.6 3340 AB-4BR(33-34.5) 5/28/2015 21200 7 U 50.7 402 3.9 74.7 0.84 U 64.3 17 45.5 8550 AB-4BR(63) 5/29/2015 7150 5.9 UJ 20.5 J 122 1.1 36.4 0.71 U 20.2 5.2 J 18.9 5220 AB-5D(7-8.5) 6/9/2015 15400 J- 8.5 UJ 42.1 J- 187 J- 4.4 J- 54.1 1 UJ 58.5 J- 16.9 J- 49.6 J- 6770 J AB-5GTB(22-24) 6/11/2015 4710 7.6 U 20 171 0.85 21.2 0.91 U 18.4 4.3 J 13.3 9830 AB-5GTB(44-46) 6/11/2015 26800 7.5 U 66 348 4.4 88 0.9 U 75.5 18.3 56.8 16900 AB-6GTB(3-5) 5/14/2015 933 8.8 U 8.8 U 38.5 0.44 UJ 21.9 U 1.1 U 2.6 8.8 U 1.7 J 1530 AB-6GTB(15-17) 5/18/2015 1950 J+ 8.6 U 13.2 J- 38.2 0.43 UJ 21.5 U 1 U 4.3 8.6 U 4.8 2770 J- AB-7D(3-5) 3/31/2015 611 J+ 2.5 U 5 J- 41.6 J 0.14 J 12.4 U 0.3 U 2.4 2.5 U 2.9 1870 J AB-7SL(15) 4/2/2015 2010 3.4 U 8.5 43.9 J+ 0.32 J 17 UJ 0.41 UJ 6.6 3.4 UJ 8.5 3290 AB-8D(8-10) 5/8/2015 1210 6.3 U 13.9 17.1 0.26 J 15.8 U 0.76 U 17.8 6.3 U 3.5 1930 AB-8D(46-48) 5/9/2015 25800 6.9 U 54 229 3.8 105 0.83 U 66.8 16.7 57.1 12400 General Notes: mg/kg - milligrams per kilogram NA - Not analyzed or not reported by analytical laboratory Std. Units - pH units Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either applicable criteria. bold - indicates exceedance of NCDENR Industrial Health Based PSRG Italic/underline- indicates exceedance of NCDENR Protection of Groundwater PSRG North Carolina Department of Environment and Natural Resources Division of Waste Management Soil Remediation Goals Table (March 2015) - Preliminary Industrial Health Based Soil Remediation Goal (PSRG) and Protection of Groundwater PSRG. "*Note: No PSRG for Total Chromium is currently available, as a surrogate the PSRG for Trivalent Chromium was used for comparison purposes only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 1 of 3 Table 7-2. Ash Sample Results - Totals Analyte Lead Manganese Mercury Molybdenum Nickel Selenium Strontium Thallium Vanadium Zinc Calcium CAS RN 7439-92-1 7439-96-5 7439-97-6 7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 7440-66-6 7440-70-2 Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg NC PSRG Ind 800 5200 8 1200 4400 1200 100000 2.4 1200 70000 NS NC PSRG Prot GW 270 65 1 NS 130 2.1 NS 0.28 6 1200 NS Sample Name Sample Date AB-4BR(7-8.5) 5/28/2015 8 U 16.4 0.013 U 4 U 4.9 5.1 J 16.6 8 U 10.7 7.6 J 550 AB-4BR(33-34.5) 5/28/2015 29.9 44.7 0.046 2.1 J 29.2 8.5 270 7 U 102 44.4 4200 AB-4BR(63) 5/29/2015 7.7 41.4 0.058 1.1 9.4 4.8 J 81.2 5.9 U 35.5 13.6 2790 AB-5D(7-8.5) 6/9/2015 32.8 J- 27.9 0.019 5.9 30.3 J- 17.3 J- 112 J- 8.5 U 86.1 J- 50.3 2000 AB-5GTB(22-24) 6/11/2015 4.7 J 49.7 0.012 U 3.8 U 11.9 4.3 J 58 7.6 U 20.5 9.7 2300 AB-5GTB(44-46) 6/11/2015 31.7 82.6 0.084 3.7 U 41.7 10 357 7.5 U 129 55.5 7810 AB-6GTB(3-5) 5/14/2015 8.8 U 7.2 0.014 U 4.4 U 3.2 6.6 U 9.9 8.8 U 8.8 U 8.8 U 428 AB-6GTB(15-17) 5/18/2015 8.6 U 15.6 J- 0.014 U 4.9 4.4 6.4 U 29.7 8.6 U 4.8 J 8.6 U 957 AB-7D(3-5) 3/31/2015 2.5 U 26.2 0.01 U 2.5 U 2.3 2.5 U 3.7 2.5 U 2.5 U 5 U 109 J AB-7SL(15) 4/2/2015 6.8 UJ 27.1 J+ 0.011 2.1 J 2.8 J+ 2.8 J 22.6 3.4 U 68 6.8 UJ 762 J+ AB-8D(8-10) 5/8/2015 6.3 U 10.4 0.0099 U 3.2 U 3 6.3 U 10 6.3 U 5.5 J 5.4 J 333 AB-8D(46-48) 5/9/2015 33.1 79.5 0.057 2.8 J 31.4 17 251 6.9 U 117 46.8 5790 General Notes: mg/kg - milligrams per kilogram NA - Not analyzed or not reported by analytical laboratory Std. Units - pH units Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either applicable criteria. bold - indicates exceedance of NCDENR Industrial Health Based PSRG Italic/underline- indicates exceedance of NCDENR Protection of Groundwater PSRG North Carolina Department of Environment and Natural Resources Division of Waste Management Soil Remediation Goals Table (March 2015) - Preliminary Industrial Health Based Soil Remediation Goal (PSRG) and Protection of Groundwater PSRG. "*Note: No PSRG for Total Chromium is currently available, as a surrogate the PSRG for Trivalent Chromium was used for comparison purposes only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 2 of 3 Table 7-2. Ash Sample Results - Totals Analyte Chloride Magnesium Nitrate Potassium Sodium Sulfate pH (field) Total Organic Carbon CAS RN 16887-00-6 7439-95-4 14797-55-8 7440-09-7 7440-23-5 14808-79-8 PH TOC Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Std. Units mg/kg NC PSRG Ind NS NS 100000 NS NS NS NS NS NC PSRG Prot GW NS NS NS NS NS NS NS NS Sample Name Sample Date AB-4BR(7-8.5) 5/28/2015 269 J- 155 J 38.3 UJ 399 U 399 U 204 J- 7.2 J 18900 J AB-4BR(33-34.5) 5/28/2015 348 UJ 1370 34.8 UJ 2560 290 J 348 UJ 8.5 J 11600 AB-4BR(63) 5/29/2015 288 U 633 28.8 UJ 957 136 288 U 9.2 J 34100 AB-5D(7-8.5) 6/9/2015 285 J 832 41.7 UJ 1630 J- 263 J 268 J 6.7 J 16900 AB-5GTB(22-24) 6/11/2015 210 J 673 36.3 UJ 553 378 U 363 U 8 J 16300 AB-5GTB(44-46) 6/11/2015 356 U 2550 35.6 UJ 3170 516 356 U 7.9 J 5730 AB-6GTB(3-5) 5/14/2015 420 U 219 U 42 UJ 438 U 438 U 420 U 7.8 J 9120 AB-6GTB(15-17) 5/18/2015 446 U 160 J 44.6 UJ 430 U 430 U 446 U 7.1 J 31500 J AB-7D(3-5) 3/31/2015 257 U ill J 25.7 U 178 J 249 U 257 U 5.9 J 6280 AB-7SL(15) 4/2/2015 342 U 145 J+ 34.2 U 341 UJ 341 UJ 281 J 5.8 J NA AB-8D(8-10) 5/8/2015 316 U 91.7 J 31.6 UJ 317 U 317 U 316 U 6.5 J 5040 AB-8D(46-48) 5/9/2015 340 U 1660 34 UJ 3300 596 202 J 8.5 J 12700 General Notes: mg/kg - milligrams per kilogram NA - Not analyzed or not reported by analytical laboratory Std. Units - pH units Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either applicable criteria. bold - indicates exceedance of NCDENR Industrial Health Based PSRG Italic/underline- indicates exceedance of NCDENR Protection of Groundwater PSRG North Carolina Department of Environment and Natural Resources Division of Waste Management Soil Remediation Goals Table (March 2015) - Preliminary Industrial Health Based Soil Remediation Goal (PSRG) and Protection of Groundwater PSRG. "*Note: No PSRG for Total Chromium is currently available, as a surrogate the PSRG for Trivalent Chromium was used for comparison purposes only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 3 of 3 Table 7-3. Ash Basin Surface Water, Porewater and Seep Parameters and Analytical Methods Parameter RL Units Method Field Parameters pH NA SU Field Water Quality Meter Specific Conductance NA mmho/cm Field Water Quality Meter Temperature NA °C Field Water Quality Meter Dissolved Oxygen NA mg/L Field Water Quality Meter Oxidation Reduction Potential NA mV Field Water Quality Meter Turbidity NA NTU Field Water Quality Meter Ferrous Iron NA mg/L Field Test Kit Inorganics Aluminum 5 pg/L EPA 200.7 or 6010C Antimony 1 pg/L EPA 200.8 or 6020A Arsenic 1 pg/L EPA 200.8 or 6020A Barium 5 pg/L EPA 200.7 or 6010C Beryllium 1 pg/L EPA 200.8 or 6020A Boron 50 pg/L EPA 200.7 or 6010C Cadmium 1 pg/L EPA 200.8 or 6020A Chromium 1 pg/L EPA 200.7 or 6010C Cobalt 1 pg/L EPA 200.8 or 6020A Copper 0.005 mg/L EPA 200.7 or 6010C Iron 10 pg/L EPA 200.7 or 6010C Lead 1 pg/L EPA 200.8 or 6020A Manganese 5 pg/L EPA 200.7 or 6010C Mercury (low level) 0.012 pg/L EPA 245.7 or 1631 Molybdenum 5 pg/L EPA 200.7 or 6010C Nickel 5 pg/L EPA 200.7 or 6010C Total Combined Radium (Ra-226 and Ra-228)4 5 pCi/L EPA 903.0 Selenium 1 pg/L EPA 200.8 or 6020A Strontium 5 pg/L EPA 200.7 or 6010C Thallium (low level) 0.2 pg/L EPA 200.8 or 6020A Vanadium (low level) 0.3 mg/L EPA 200.8 or 6020A Zinc 5 pg/L EPA 200.7 or 6010C Anions/Cations Alkalinity (as CaCO3) 20 mg/L SM 2320B Bicarbonate 20 mg/L SM 2320 Calcium 0.01 mg/L EPA 200.7 Carbonate 20 mg/L SM 2320 Chloride 0.1 mg/L EPA 300.0 or 9056A Magnesium 0.005 mg/L EPA 200.7 Nitrate as Nitrogen 0.023 mg-N/L EPA 300.0 or 9056A Potassium 0.1 mg/L EPA 200.7 Sodium 0.05 mg/L EPA 200.7 Belews Creek Steam Station Page 1 of 2 Table 7-3. Ash Basin Surface Water, Porewater and Seep Parameters and Analytical Methods Parameter RL Units Method Sulfate 0.1 mg/L EPA 300.0 or 9056A Sulfide 0.05 mg/L SM4500S-D Total Dissolved Solids 25 mg/L SM 2540C Total Organic Carbon 0.1 mg/L SM 5310 Total Suspended Solids 2 mg/L SM 2450D Additional Groundwater Constituents Arsenic (III) (V) Vender Specific pg/L IC-ICP-CRC-MS Chromium (IV) (VI) Vender Specific pg/L IC-ICP-CRC-MS Iron Speciation (Fe(II), Fe(III) Vendor Specific pg/L IC-ICP-CRC-MS Manganese Speciation (Mn(II), Mn(IV) Vendor Specific pg/L IC-ICP-CRC-MS Selenium (IV) (VI) Vendor Specific pg/L RP-ICP-CRC-MS Notes 1. Select constituents will be analyzed for total and dissolved concentrations. 2. RL is the laboratory analytical method reporting limit. 3. NA indicates not applicable. 4. Following wells to be sampled for Total Combined Radium: MW-101 S/D, MW-102D, MW-103S/D, and BG-1 S/D. DWR regional office will be consulted to determine if additional wells are to be sampled. 5. Sulfide as 1-12S sampled in groundwater samples only. 6. All EPA methods and RLs are at or below respective 2L or 213 standards for constituents with standards. Belews Creek Steam Station Page 2 of 2 Table 7-4. Ash Basin Surface Water Sample Results - Totals Analyte Aluminum Aluminum Antimony Antimony Arsenic Arsenic Barium Barium Beryllium Beryllium Boron Boron Cadmium Cadmium Chromium CAS RN 7429-90-5 7429-90-5 7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-39-3 7440-39-3 7440-41-7 7440-41-7 7440-42-8 7440-42-8 7440-43-9 7440-43-9 7440-47-3 FRACTION D T D T D T D T D T D T D T D Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I NC 2B SW Criteria (< AL HH WS) 87 87 5.6 5.6 10 10 1000 1000 6.5 6.5 0.15 0.15 24 15A NCAC 02L STANDARD NS NS NS NS 10 10 700 700 NS NS 700 700 2 2 10 IMAC* NS NS 1 1 NS NS NS NS 4 4 NS NS NS NS NS Sample Name Sample Date SW-AB1 6/15/2015 53.7 58.5 1.2 1.2 5.1 5.1 72 72 0.2 U 0.098 J 15700 15900 0.067 J 0.092 0.76 J+ SW-A132 6/11/2015 51.1 77.9 1.3 1.2 5.1 4.8 68 70 0.2 U 0.2 U 14600 14900 0.11 0.12 0.81 J+ SW-AB2 7/20/2015 NA NA 1.3 1.3 6.7 9 76 77 0.2 U 0.11 J 17200 16300 J+ 0.053 J 0.1 0.54 J+ SW-A134 6/11/2015 40.4 62.9 0.49 J 0.5 U 8.2 10.4 150 160 0.2 U 0.2 U 5200 5300 0.08 U 0.08 U 0.46 J+ SW-AB5 6/12/2015 5.8 J+ 9 J 0.36 J 0.15 J 9.6 8.9 120 130 0.2 U 0.2 U 5200 5200 0.08 U 0.08 U 0.34 J SW-A136 6/11/2015 7.5 J 11.6 0.5 U 0.5 U 5.7 6.1 46 50 0.2 U 0.2 U 680 670 0.08 U 0.08 U 0.68 J+ SW-A137 6/11/2015 10 U 14.6 0.5 U 0.5 U 2.9 5 43 62 0.2 U 0.2 U 51 59 0.08 U 0.08 U 0.3 J+ SW-A138 6/10/2015 131 47.2 0.5 U 0.5 U 0.46 J 0.58 8.7 9.6 0.2 U 0.2 U 57 65 0.08 U 0.08 U 7.7 SW-A139 6/15/2015 7.2 J 10.1 0.15 J 0.16 J 4.3 4.4 100 110 0.2 U 0.2 U 96 120 0.08 U 0.08 U 0.5 U General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either referenced bold - indicates exceedance of NC 02B Surface Water italic+underline - indicates exceedance of NC 02L Groundwater Standard or IMAC* North Carolina Department of Environment and Natural Resources Division of Water Resources 15A NCAC 02B Surface Water Standards and Protective Values & EPA National Recommended Water Quality Criteria. **NOTE for the purposes of comparison, the lowest value of the Water Supply, Human Health, or Freshwater Aquatic Life criteria was referenced in this table. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 1 of 4 Table 7-4. Ash Basin Surface Water Sample Results - Totals Analyte Chromium Cobalt Cobalt Copper Copper Iron Iron Lead Lead Manganese Manganese Mercury Mercury Molybdenum Molybdenum CAS RN 7440-47-3 7440-48-4 7440-48-4 7440-50-8 7440-50-8 7439-89-6 7439-89-6 7439-92-1 7439-92-1 7439-96-5 7439-96-5 7439-97-6 7439-97-6 7439-98-7 7439-98-7 FRACTION T D T D T D T D T D T D T D T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I NC 213 SW Criteria (< AL HH WS) 24 3 3 2.7 2.7 0.54 0.54 160 160 15A NCAC 02L STANDARD 10 NS NS 1000 1000 300 300 15 15 50 50 1 1 NS NS IMAC* NS 1 1 NS NS NS NS NS NS NS NS NS NS NS NS Sample Name Sample Date SW-AB1 6/15/2015 0.54 0.25 J 0.29 J 1.3 1.2 21 J 34.5 J 0.1 U 0.055 J+ 59 76 0.2 U 0.00181 21 22 SW-A132 6/11/2015 0.64 0.27 J 0.5 UJ 1 U 1.2 50 U 37.4 J 0.1 U 0.063 J 17 94 0.2 U 0.00159 23.3 21.4 SW-A132 7/20/2015 1.6 0.18 J 0.72 2.5 J+ 2.1 NA NA 0.18 0.72 85 130 NA 0.00143 22.7 23.7 SW-A134 6/11/2015 0.54 0.13 J 0.26 J 1.6 1.6 47.6 J 202 0.1 U 0.1 U 38 100 0.2 U 0.00161 6.9 6.6 SW-A135 6/12/2015 0.27 J 0.5 U 0.5 U 0.5 J 0.46 J 50 U 24.6 J 0.1 U 0.1 U 9 30 NA 0.000644 9.5 8.8 SW-A136 6/11/2015 0.6 0.5 U 0.5 U 0.3 J 0.72 J 66 131 0.1 U 0.047 J 13 58 0.2 U 0.000876 1.2 1.2 SW-A137 6/11/2015 0.43 J 0.5 U 0.38 J 0.37 J 0.74 J 235 1420 0.1 U 0.16 15 330 0.2 U 0.00119 0.34 J 0.48 J SW-A138 6/10/2015 7.5 0.5 U 0.5 U 0.48 J+ 0.46 J 308 860 0.1 U 0.085 J 10 28 NA 0.001 U 1.7 1.7 SW-A139 6/15/2015 0.17 J 0.5 U 0.5 U 1.4 0.25 J 81.1 161 0.1 U 0.1 UJ 6.1 28 0.2 U 0.000549 3.1 3.1 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either referenced bold - indicates exceedance of NC 02B Surface Water italic+underline - indicates exceedance of NC 02L Groundwater Standard or IMAC* North Carolina Department of Environment and Natural Resources Division of Water Resources 15A NCAC 02B Surface Water Standards and Protective Values & EPA National Recommended Water Quality Criteria. **NOTE for the purposes of comparison, the lowest value of the Water Supply, Human Health, or Freshwater Aquatic Life criteria was referenced in this table. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 2 of 4 Table 7-4. Ash Basin Surface Water Sample Results - Totals Analyte Nickel Nickel Selenium Selenium Strontium Strontium Thallium Thallium Vanadium Vanadium Zinc Zinc Alkalinity, HCO3 Alkalinity, CO3 Alkalinity, lab CAS RN 7440-02-0 7440-02-0 7782-49-2 7782-49-2 7440-24-6 7440-24-6 7440-28-0 7440-28-0 7440-62-2 7440-62-2 7440-66-6 7440-66-6 ALK-HCO3 ALK-0O3 ALK-LAB FRACTION D T D T D T D T D T D T N N N Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I NC 213 SW Criteria (< AL HH WS) 16 16 14000 14000 0.24 0.24 36 36 15A NCAC 02L STANDARD 100 100 20 20 NS NS NS NS NS NS 1000 1000 NS NS NS IMAC* NS NS NS NS NS NS 0.2 0.2 0.3 0.3 NS NS NS NS NS Sample Name Sample Date SW-AB1 6/15/2015 2.9 3.1 6.5 5.9 850 840 1.2 1.4 4.2 4.1 10 U 2.7 J 30000 10000 U 30000 SW-A132 6/11/2015 3.7 4.1 6.4 6.4 820 820 1.3 1.3 4.1 3.8 10 U 10 U 27000 10000 U 27000 SW-AB2 7/20/2015 1.5 J+ 3 5.9 6.7 930 900 1.1 1.3 6 9.2 12 J+ 5.9 J 27200 5000 U 28000 SW-A134 6/11/2015 1.3 1.3 3 3 580 610 0.35 0.34 0.57 J 0.89 J 10 U 3 J 55000 10000 U 55000 SW-AB5 6/12/2015 0.3 J 0.2 J 5.1 4.5 550 560 0.07 J+ 0.065 J 0.58 J 0.52 J 10 U 3.6 J 55000 10000 U 55000 SW-A136 6/11/2015 0.47 J 0.35 J 0.74 0.7 120 120 0.027 J 0.036 J 1 U 1 U 10 U 4 J 46000 10000 U 46000 SW-A137 6/11/2015 0.45 J 0.55 0.54 0.59 43 45 0.05 J 0.061 J 1 U 1 U 10 U 3.9 J 22000 10000 U 22000 SW-A138 6/10/2015 6.8 6.8 0.47 J 0.44 J 31 32 0.089 J 0.096 J 1 U 1 U 10 U 10 U 10000 U 10000 U 10000 U SW-A139 6/15/2015 0.37 J 0.36 J 0.3 J 0.28 J 110 110 0.017 J 0.034 J+ 1.5 1.7 10 U 3.7 J 38000 10000 U 38000 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either referenced bold - indicates exceedance of NC 02B Surface Water italic+underline - indicates exceedance of NC 02L Groundwater Standard or IMAC* North Carolina Department of Environment and Natural Resources Division of Water Resources 15A NCAC 02B Surface Water Standards and Protective Values & EPA National Recommended Water Quality Criteria. **NOTE for the purposes of comparison, the lowest value of the Water Supply, Human Health, or Freshwater Aquatic Life criteria was referenced in this table. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 3 of 4 Table 7-4. Ash Basin Surface Water Sample Results - Totals Analyte Calcium Chloride Magnesium Methane Nitrogen, NO2 plus NO3 Potassium Sodium Sulfate Sulfide Total Organic Carbon Total Dissolved Solids Total Suspended CAS RN 7440-70-2 16887-00-6 7439-95-4 74-82-8 NO2-NO3 7440-09-7 7440-23-5 14808-79-8 18496-25-8 TOC TDS TSS FRACTION T N T N N T T N N N N N Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I NC 213 SW Criteria (< AL HH WS) 230000 250000 15A NCAC 02L STANDARD NS 250000 NS NS NS NS NS 250000 NS NS 500000 NS IMAC* NS NS NS NS NS NS NS NS NS NS NS NS Sample Name Sample Date SW-AB1 6/15/2015 215000 428000 73300 14 111 7230 13400 123000 500 U 4200 1300000 5000 U SW-A132 6/11/2015 215000 J- 389000 68800 11 20 U 6960 12500 112000 200 U 5700 1200000 5700 SW-AB2 7/20/2015 219000 492000 71500 14.2 J+ 180 6910 13000 118000 100 U 4200 1930000 20400 SW-A134 6/11/2015 67500 85300 22500 10 U 20 U 5390 13000 106000 100 U 7500 360000 3000 J SW-A135 6/12/2015 63600 81400 22600 11 20 U 5160 14400 112000 100 U 4400 443000 2500 U SW-A136 1 6/11/2015 13500 6700 5110 24 21 5000 U 9700 19700 100 U 3900 87000 1700 SW-A137 6/11/2019 2830 4300 1920 14 20 U 5000 U 6490 1900 100 U 5400 48000 2900 SW-A138 6/10/2015 3550 5500 1690 13 20 U 5000 U 4120 J 4400 100 U 5600 10000 U 2200 SW-A139 6/15/2015 9630 7800 3810 13 20 U 3670 J 7100 9600 100 U 2400 89000 2500 U General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either referenced bold - indicates exceedance of NC 02B Surface Water italic+underline - indicates exceedance of NC 02L Groundwater Standard or IMAC* North Carolina Department of Environment and Natural Resources Division of Water Resources 15A NCAC 02B Surface Water Standards and Protective Values & EPA National Recommended Water Quality Criteria. **NOTE for the purposes of comparison, the lowest value of the Water Supply, Human Health, or Freshwater Aquatic Life criteria was referenced in this table. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 4 of 4 Table 7-5. Ash Basin Porewater Sample Results - Totals Analyte Aluminum Aluminum Antimony Antimony Arsenic Arsenic Barium Barium Beryllium Beryllium Boron Boron CAS RN 7429-90-5 7429-90-5 7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-39-3 7440-39-3 7440-41-7 7440-41-7 7440-42-8 7440-42-8 Fraction D T D T D T D T D T D T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD NS NS NS NS 10 10 700 700 NS NS 700 700 IMAC* NS NS 1 1 NS NS NS NS 4 4 NS NS Sample Name Sample Date A13-4SL 7/16/2015 10000 11300 8.2 8.1 63.5 67.6 170 190 0.15 J 0.23 12300 13500 A13-4S 7/15/2015 74 J 72 J 0.5 U 0.5 U 76.9 81.2 140 150 0.26 0.2 U 23300 21900 J AB-5SL 7/14/2015 1000 1600 8 8.9 43.7 45.2 300 330 0.2 U 0.081 J 13800 15000 AB-5S 7/15/2015 110 110 0.5 U 0.5 U 87 93.3 140 140 0.14 J 0.2 U 11900 11100 AB-6SL 7/9/2015 100 U 100 U 0.5 U 0.5 U 6.5 11.8 240 190 0.2 U 0.2 U 2300 1600 AB-6S 7/8/2015 100 U 100 U 0.28 J 0.3 J 7.1 8.4 200 200 0.2 U 0.2 U 98 98 AB-7S 6/16/2015 3110 1970 J+ 0.5 UJ 0.5 U 25.3 24.9 J+ 23 J+ 24 J 1.2 J+ 0.78 4600 4800 AB-7S 7/13/2015 480 J 1800 0.5 U 0.5 U 31.7 32.8 23 J 24 J 0.68 0.64 3100 3000 AB-8SL 6/17/2015 5000 5000 15.9 15.2 139 146 94 98 0.2 U 0.15 J 13100 J- 13000 AB-8S 6/16/2015 11 13.6 0.25 J 0.26 J 30.3 30.7 68 70 0.2 UJ 0.2 U 2200 2200 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 1 of 5 Table 7-5. Ash Basin Porewater Sample Results - Totals Analyte Cadmium Cadmium Chromium Chromium Cobalt Cobalt Copper Copper Iron Iron Lead Lead CAS RN 7440-43-9 7440-43-9 7440-47-3 7440-47-3 7440-48-4 7440-48-4 7440-50-8 7440-50-8 7439-89-6 7439-89-6 7439-92-1 7439-92-1 Fraction D T D T D T D T D T D T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD 2 2 10 10 NS NS 1000 1000 300 300 15 15 IMAC* NS NS NS NS 1 1 NS NS NS NS NS NS Sample Name Sample Date A134SL 7/16/2015 1.6 U 1.2 0.56 J+ 3.3 0.5 U 1.1 0.89 J+ 3.6 50 U 370 0.07 J+ 2 A134S 7/15/2015 0.08 U 0.08 U 0.32 J+ 8.5 0.23 J 0.26 J 1 U 1 U 5000 5000 0.1 U 0.1 U AB-5SL 7/14/2015 0.041 J 0.06 J 0.38 J 1.5 0.5 U 0.45 J 1 U 1.3 50 U 160 0.048 J 0.76 AB-5S 7/15/2015 0.08 U 0.08 U 0.5 U 0.25 J+ 0.5 U 0.5 U 10.6 1 U 260 310 J+ 0.1 U 0.1 U AB-6SL 7/9/2015 0.08 U 0.08 U 0.3 J+ 0.43 J+ 0.5 U 0.5 U 1 U 1 U 5600 3700 0.1 U 0.1 U AB-6S 7/8/2015 0.08 U 0.08 U 0.36 J+ 1.2 J+ 0.3 J 0.35 J 1 U 1 U 430 750 0.1 U 0.1 U AB-7S 6/16/2015 0.84 0.69 1.3 J+ 5.4 156 J+ 155 J+ 4.4 J+ 1.3 69300 J- 77800 J- 0.3 J+ 0.12 AB-7S 7/13/2015 0.65 0.58 0.58 0.64 246 243 0.25 J 0.65 J 65400 70400 0.097 J 0.089 J AB-8SL 6/17/2015 0.1 0.4 U 0.28 J+ 0.36 J 0.5 U 0.5 U 1 U 1 U 50 U 100 0.1 U 0.074 J AB-8S 6/16/2015 0.08 UJ 0.08 U 1.4 J+ 1.5 3.4 J+ 3.4 2.2 J+ 1 U 5140 5120 0.1 UJ 0.1 U General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 2 of 5 Table 7-5. Ash Basin Porewater Sample Results - Totals Analyte Manganese Manganese Mercury Mercury Molybdenum Molybdenum Nickel Nickel Selenium Selenium Strontium Strontium CAS RN 7439-96-5 7439-96-5 7439-97-6 7439-97-6 7439-98-7 7439-98-7 7440-02-0 7440-02-0 7782-49-2 7782-49-2 7440-24-6 7440-24-6 Fraction D T D T D T D T D T D T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD 50 50 1 1 NS NS 100 100 20 20 NS NS IMAC* NS NS NS NS NS NS NS NS NS NS NS NS Sample Name Sample Date A13-4SL 7/16/2015 5 U 2.9 J 0.2 UJ 0.2 U 3710 3560 0.57 J+ 2.3 38.5 38.4 3000 3000 A13-4S 7/15/2015 350 370 0.2 U 0.2 U 18.1 19.2 0.5 U 2 J+ 0.5 U 0.21 J 1500 1500 A13-5SL 7/14/2015 5 U 5 U 0.2 U 0.2 U 147 153 0.5 U 0.83 3.6 3.8 5400 J- 5800 AB-5S 7/15/2015 610 630 0.2 U 0.2 U 26.4 27.3 0.28 J 0.44 J+ 0.62 0.6 1200 1300 AB-6SL 7/9/2015 180 140 0.2 U 0.2 U 4 3.6 0.5 U 0.5 U 0.34 J 0.27 J 1300 1000 AB-6S 7/8/2015 12 11 0.2 U 0.2 U 6.3 6.6 0.65 J+ 1.3 J+ 1.5 J+ 0.93 100 100 AB-7S 6/16/2015 5700 6300 NA 0.000934 0.28 J 0.36 J 70.1 68.3 6.2 5.1 640 660 AB-7S 7/13/2015 9000 9200 0.2 U 0.08 J 0.72 0.85 94.6 91.6 4.5 4.3 600 610 AB-8SL 6/17/2015 4.9 J 5.9 0.2 U 0.088 J+ 2510 2530 0.34 J 0.36 J+ 13.1 13.4 1700 1700 AB-8S 6/16/2015 120 120 NA 0.000621 23 22.9 4.9 J+ 4.7 0.47 J+ 0.45 J 250 260 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 3 of 5 Table 7-5. Ash Basin Porewater Sample Results - Totals Analyte Thallium Thallium Vanadium Vanadium Zinc Zinc Alkalinity, HCO3 Alkalinity, CO3 Alkalinity, lab Calcium Chloride Magnesium CAS RN 7440-28-0 7440-28-0 7440-62-2 7440-62-2 7440-66-6 7440-66-6 ALK-HCO3 ALK-0O3 ALK-LAB 7440-70-2 16887-00-6 7439-95-4 Fraction D T D T D T N N N T N T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD NS NS NS NS 1000 1000 NS NS NS NS 250000 NS IMAC* 0.2 0.2 0.3 0.3 NS NS NS NS NS NS NS NS Sample Name Sample Date A13-4SL 7/16/2015 0.15 0.22 864 867 10 U 3 J 5000 U 109000 140000 148000 7700 304 AB-4S 7/15/2015 0.1 U 0.019 J 1 U 0.5 J+ 10 U 10 U 39300 5000 U 39300 327000 783000 108000 AB-5SL 7/14/2015 0.11 0.14 93.9 99.3 10 U 10 U 73700 5000 U 73700 463000 600000 J+ 11200 AB-5S 7/15/2015 0.1 U 0.048 J 1 U 0.45 J+ 10 U 10 U 100000 5000 U 100000 212000 298000 53800 AB-6SL 7/9/2015 0.1 U 0.1 U 0.38 J 0.38 J 10 U 10 U 115000 5000 U 115000 36100 7000 4830 AB-6S 7/8/2015 0.12 0.073 J 4.4 5.5 3.4 J 10 U 28600 5000 U 28600 9880 8600 J+ 3950 AB-7S 6/16/2015 1.3 1.2 0.33 J+ 1 U 140 130 NA NA NA 117000 122000 25600 AB-7S 7/13/2015 1.3 1.4 1 U 0.43 J 140 130 36800 5000 U 36800 100000 98800 30800 AB-8SL 6/17/2015 0.045 J 0.05 J 838 827 10 U 8 J+ 83000 19000 100000 113000 6800 1870 AB-8S 6/16/2015 0.45 J+ 0.45 0.75 J+ 0.84 J 10 UJ 10 U 37000 10000 U 37000 29800 46300 7950 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 "NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 4 of 5 Table 7-5. Ash Basin Porewater Sample Results - Totals Analyte Methane Nitrogen, NO2 plus NO3 Potassium Sodium Sulfate Sulfide Total Organic Carbon Total Dissolved Solids Total Suspended Solids CAS RN 74-82-8 NO2-NO3 7440-09-7 7440-23-5 14808-79-8 18496-25-8 TOC TDS TSS Fraction N N T T N N N N N Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD NS NS NS NS 250000 NS NS 500000 NS IMAC* NS NS NS NS NS NS NS NS NS Sample Name Sample Date A13-4SL 7/16/2015 9160 11 J 12000 5000 U 241000 100 U 3300 595000 26300 AB-4S 7/15/2015 135 11 J- 7900 13300 180000 100 U 900 J 2340000 8100 A13-5SL 7/14/2015 9780 20 U 22000 13800 209000 J+ 100 U 560 J 2880000 30500 AB-5S 7/15/2015 1.4 J+ 20 UJ 7750 11200 246000 100 U 530 J 1110000 2500 U A13-6SL 7/9/2015 20400 20 U 5050 4280 J 2000 100 U 3100 191000 11200 AB-6S 7/8/2015 155 42 4230 J 7490 16000 100 U 1700 92000 2500 U AB-7S 6/16/2015 NA 40 9470 14300 395000 100 U 1400 887000 25300 AB-7S 7/13/2015 520 20 U 25000 U 25000 U 439000 100 U 1400 900000 11900 AB-8SL 6/17/2015 16000 20 U 11400 2580 J 165000 M1 200 U 3100 1 472000 2500 U AB-8S 6/16/2015 1 83 1 20 U 1 11200 1 10400 1 47200 1 100 U 1 1200 1 242000 1 2500 U General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 5 of 5 Table 7-6. Ash Sample Results - SPLP Analyte Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Chromium Cobalt Copper CAS RN 7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-41-7 7440-42-8 7440-43-9 7440-47-3 7440-48-4 7440-50-8 Fraction SPLP SPLP SPLP SPLP SPLP SPLP SPLP SPLP SPLP SPLP Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD NS NS 10 700 NS 700 2 10 NS 1000 IMAC* NS 1 NS NS 4 NS NS NS 1 NS Sample Name Sample Date AB-5GTB(22-24) 6/11/2015 759 1.9 76.6 263 0.19 J 378 0.15 4.8 J+ 0.43 J 3.7 J+ AB-5GTB(44-46) 6/11/2015 1 2350 J+ 5.5 1 82.4 148 0.31 1 394 0.15 12.2 1 0.52 11.1 AB-7SL(15) 4/2/2015 1 64.4 1 2.5 U 14 260 1 U 1 86.5 0.86 2.5 U 1 9.1 9 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration. biased low. Belews Creek Steam Station Page 1 of 3 Table 7-6. Ash Sample Results - SPLP Analyte Iron Lead Manganese Mercury Molybdenum Nickel Selenium Strontium Thallium Vanadium CAS RN 7439-89-6 7439-92-1 7439-96-5 7439-97-6 7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 Fraction SPLP SPLP SPLP SPLP SPLP SPLP SPLP SPLP SPLP SPLP Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD 300 15 50 1 NS 100 20 NS NS NS IMAC* NS NS NS NS NS NS NS NS 0.2 0.3 Sample Name Sample Date AB-5GTB(22-24) 6/11/2015 152 J+ 0.54 J+ 5.9 J+ 0.2 U 3.9 1.7 J+ 31.5 108 0.19 56 AB-5GTB(44-46) 6/11/2015 1 236 J+ 1.5 1 3.4 J+ 0.6 U 5 1 1.8 J+ 55.5 202 J+ 1 0.3 156 AB-7SL(15) 4/2/2015 1 250 U 1 0.5 U 1 227 1 0.2 U 1 2.5 U 1 9.8 1 3.9 1 27.4 1 0.5 U 5 U General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration. biased low. Belews Creek Steam Station Page 2 of 3 Table 7-6. Ash Sample Results - SPLP Analyte Zinc Calcium Chloride Magnesium Nitrate Potassium Sodium Sulfate pH (field) CAS RN 7440-66-6 7440-70-2 16887-00-6 7439-95-4 14797-55-8 7440-09-7 7440-23-5 14808-79-8 PH Fraction SPLP SPLP SPLP SPLP SPLP SPLP SPLP SPLP PH Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I Std. Units 15A NCAC 02L STANDARD 1000 NS 250000 NS 10000 NS NS 250000 6.5 - 8.5 IMAC* NS NS NS NS NS NS NS NS NS Sample Name Sample Date AB-5GTB(22-24) 6/11/2015 98.7 12100 8200 1410 200 UJ 221 J+ 655 4500 J+ 8 J AB-5GTB(44-46) 6/11/2015 1 40.4 11400 J+ 5000 U 156 J+ 200 UJ 294 J+ 1440 10800 J+ 7.9 J AB-7SL(15) 4/2/2015 1 139 1 2090 1 6800 U 1 590 1 270 UJ 1 242 J 1 1470 1 11300 1 5.8 J General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration. biased low. Belews Creek Steam Station Page 3 of 3 Table 7-7. Surface Water Sample Results - Speciation Analyte As(III) As(V) Chromium (VI) Fe(II) Fe(III) Mn(II) Mn(IV) Se(IV) Se(VI) CAS RN 7784-46-5 10103-60-3 18540-29-9 1345-25-1 1309-37-1 1344-43-0 1313-13-9 10102-18-8 13410-01-0 Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I Sample Name Sample Date SW-AB1 6/15/2015 1.83 1.55 0.333 12.1 J+ 2 J+ 54 14.5 1.52 1.23 SW-AB9 6/15/2015 0.99 1.38 0.03 41.1 43.5 J+ 1.6 J+ 23.2 0.5 U 0.5 U General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 1 of 1 Table 7-8. Surface Water Field Parameters Well ID Date Collected Time Collected Temp (°C) pH (SU) Specific Cond. (pS) Diss. Oxy (mg/L) ORP/Redox (mV) Turbidity (NTU) Notes SW-AB1 6/15/2015 14:20 34.2 8.05 1810 6.03 122 2.7 - SW-AB2 6/11/2015 15:20 31.5 8.02 1770 5.8 197 3 - SW-AB3 - - - - - - - - Inaccessible - Not Sampled SW-AB4 6/11/2015 16:30 31 6.94 620 3.45 202 1.9 - SW-AB5 6/12/2015 12:20 29.3 8.28 610 9.35 152 1 - SW-AB6 6/11/2015 12:15 18.9 8.28 163 8.51 189 1.9 - SW-AB7 6/11/2015 10:15 28.5 7.39 65 6.11 200.8 3.5 - SW-AB8 6/10/2015 15:15 31 7.5 67 7.31 313 1.5 - SW-AB9 6/15/2015 15:20 32.1 8.28 6.91 114 114 1.2 - Belews Creek Steam Station Page 1 of 1 Table 7-9. Ash Basin Porewater Sample Results - Speciation Analyte Arsenic As(III) As(V) Chromium Chromium (VI) Chromium (VI) Fe(II) Fe(III) Iron CAS RN 7440-38-2 7784-46-5 10103-60-3 7440-47-3 18540-29-9 18540-29-9 1345-25-1 1309-37-1 7439-89-6 Fraction T T T T D T T T T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I Sample Name Sample Date AB-4SL 7/16/2015 48.7 2.56 J+ 46.1 1.06 J+ 0.02 U NA 30 UJ NA 100 U AB-4S 7/15/2015 59.2 67.1 J+ 7.5 U 0.309 J+ 0.02 U NA 408 J- NA 5150 AB-5SL 7/14/2015 41.7 J+ 4.95 J+ 36.7 J+ 3.49 J+ 0.02 U NA 30 U NA 1430 AB-5S 7/15/2015 71.7 84.4 J+ 7.5 U 0.82 J+ 0.02 U NA 30.2 J- NA 239 AB-6SL 7/9/2015 5.22 J+ 5.78 J+ 0.5 U 0.632 J+ NA NA 560 J- NA 3580 J+ AB-6S 7/8/2015 6.44 J+ 5.83 J+ 0.608 J+ 1.39 J+ NA NA 110 J+ NA 726 J+ AB-7S 6/16/2015 NA 11.4 3.69 NA NA 0.05 U 83800 3980 NA AB-8SL 7/13/2015 120 J+ 32.7 J+ 87.3 J+ 1.61 1 0.02 U NA 30 U NA 150 AMS 6/16/2015 1 NA 1 21 1 2.76 NA I NA 1 0.05 U 1 4760 357 NA General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 1 of 2 Table 7-9. Ash Basin Porewater Sample Results - Speciation Analyte Manganese Manganese Mn(II) Mn(IV) Se(IV) Se(VI) CAS RN 7439-96-5 7439-96-5 1344-43-0 1313-13-9 10102-18-8 13410-01-0 Fraction D T T T T T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I Sample Name Sample Date AB-4SL 7/16/2015 2 U 2 U NA NA 11.3 22.2 AB-4S 7/15/2015 375 387 NA NA 2 U 2 U AB-5SL 7/14/2015 0.674 J+ 1.52 J+ NA NA 2.21 2 U AB-5S 7/15/2015 543 644 NA NA 2 U 2 U AB-6SL 7/9/2015 186 177 NA NA 2 U 2 UJ AB-6S 7/8/2015 9.78 J+ 11.7 J+ NA NA 2 U 0.686 J AB-7S 6/16/2015 NA NA 8150 234 0.5 U 0.5 U AB-8SL 7/13/2015 i 3.64 1 1.63 J+ I NA NA 8.15 1.07 J AB-8S 6/16/2015 1 NA I NA 1 119 1 U 0.5 U 0.5 U General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 2 of 2 Table 7-10. Ash Basin Seep Sample Results - Totals Analyte Aluminum Aluminum Antimony Antimony Arsenic Arsenic Barium Barium Beryllium Beryllium Boron Boron CAS RN 7429-90-5 7429-90-5 7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-39-3 7440-39-3 7440-41-7 7440-41-7 7440-42-8 7440-42-8 Fraction D T D T D T D T D T D T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD NS NS NS NS 10 10 700 700 NS NS 700 700 IMAC* NS NS 1 1 NS NS NS NS 4 4 NS NS Sample Name Sample Date S-6 7/17/2015 NA NA 0.3 J 0.69 1.8 5.3 71 91 0.2 U 0.12 J 3300 3900 S-10 7/17/2015 NA NA 0.5 U 0.5 U 0.64 0.66 300 300 2.2 2.2 7500 7200 J+ S-11 7/17/2015 NA NA 0.5 U 0.5 U 2.4 2.8 250 250 0.81 0.8 9800 J+ 9400 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 `NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration. biased low. Belews Creek Steam Station Page 1 of 5 Table 7-10. Ash Basin Seep Sample Results - Totals Analyte Cadmium Cadmium Chromium Chromium Cobalt Cobalt Copper Copper Iron Iron Lead Lead CAS RN 7440-43-9 7440-43-9 7440-47-3 7440-47-3 7440-48-4 7440-48-4 7440-50-8 7440-50-8 7439-89-6 7439-89-6 7439-92-1 7439-92-1 Fraction D T D T D T D T D T D T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD 2 2 10 10 NS NS 1000 1000 300 300 15 15 IMAC* NS NS NS NS 1 1 NS NS NS NS NS NS Sample Name Sample Date S-6 7/17/2015 0.08 U 0.058 J 0.45 J 1.9 0.45 J 1.1 0.22 J 2.3 NA NA 0.1 U 1.5 S-10 7/17/2015 1.1 1.2 0.5 U 0.24 J 13.6 13.5 1 U 0.72 J NA NA 0.1 U 0.1 U S-11 7/17/2015 0.62 0.66 0.28 J 0.36 J 72.6 74.8 0.53 J 0.34 J NA NA 0.1 U 0.1 U General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: INS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 `NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration. biased low. Belews Creek Steam Station Page 2 of 5 Table 7-10. Ash Basin Seep Sample Results - Totals Analyte Manganese Manganese Mercury Mercury Molybdenum Molybdenum Nickel Nickel Selenium Selenium Strontium Strontium CAS RN 7439-96-5 7439-96-5 7439-97-6 7439-97-6 7439-98-7 7439-98-7 7440-02-0 7440-02-0 7782-49-2 7782-49-2 7440-24-6 7440-24-6 Fraction D T D T D T D T D T D T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD 50 50 1 1 NS NS 100 100 20 20 NS NS IMAC* NS NS NS NS NS NS NS NS NS NS NS NS Sample Name Sample Date S-6 7/17/2015 300 440 NA 0.00182 3.9 8.1 0.9 2 1.1 1.6 410 480 S-10 7/17/2015 5400 5300 J+ NA 0.0264 0.5 U 0.5 U 13.4 13.5 0.45 J 0.35 J 840 840 S-11 7/17/2015 8700 J- 8500 NA 0.0131 0.5 U 0.5 U 12.2 12.9 3.3 4.3 680 670 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 `NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration. biased low. Belews Creek Steam Station Page 3 of 5 Table 7-10. Ash Basin Seep Sample Results - Totals Analyte Thallium Thallium Vanadium Vanadium Zinc Zinc Alkalinity, HCO3 Alkalinity, CO3 Alkalinity, lab Calcium Chloride Magnesium CAS RN 7440-28-0 7440-28-0 7440-62-2 7440-62-2 7440-66-6 7440-66-6 ALK-HCO3 ALK-0O3 ALK-LAB 7440-70-2 16887-00-6 7439-95-4 Fraction D T D T D T N N N T N T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD NS NS NS NS 1000 1000 NS NS NS NS 250000 NS IMAC* 0.2 0.2 0.3 0.3 NS NS NS NS NS NS NS NS Sample Name Sample Date S-6 7/17/2015 0.077 J 0.22 2.6 9 4.5 J 14 66600 5000 U 66600 84300 140000 22000 S-10 7/17/2015 0.37 0.39 J+ 1 U 1 U 6.2 J 6.1 J 2200 J 5000 U 2200 J 110000 414000 68700 S-11 7/17/2015 0.39 0.41 J+ 1 U 1 U 9.2 J 9.1 J 4800 J 5000 U 4800 J 172000 434000 50900 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 `NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration. biased low. Belews Creek Steam Station Page 4 of 5 Table 7-10. Ash Basin Seep Sample Results - Totals Analyte Methane Nitrogen, NO2 plus NO3 Potassium Sodium Sulfate Sulfide Total Organic Carbon Total Dissolved Solids Total Suspended Solids CAS RN 74-82-8 NO2-NO3 7440-09-7 7440-23-5 14808-79-8 18496-25-8 TOC TDS TSS Fraction N N T T N N N N N Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD NS NS NS NS 250000 NS NS 500000 NS IMAC* NS NS NS NS NS NS NS NS NS Sample Name Sample Date S-6 7/17/2015 80.2 250 6410 13900 42900 100 U 2100 509000 2700 S-10 7/17/2015 9.6 J 300 8860 20600 16100 100 U 900 J 1050000 2500 U S-11 7/17/2015 3 J+ 41 5130 13800 97000 100 U 3000 1170000 5600 U General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 `NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration. biased low. Belews Creek Steam Station Page 5 of 5 Table 7-11. Ash Basin Seep Sample Results - Speciation Analyte As(III) As(V) Chromium (VI) Fe(II) Fe(III) Mn(II) Mn(IV) Se(IV) Se(VI) CAS RN 7784-46-5 10103-60-3 18540-29-9 1345-25-1 1309-37-1 1344-43-0 1313-13-9 10102-18-8 13410-01-0 Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I Sample Name Sample Date S-6 7/17/2015 0.335 J+ 1.74 0.062 212 497 365 5 2 U 2 U S-10 7/17/2015 0.5 U 0.559 0.02 U 1260 150 5150 1100 2 U 2 U S-11 7/17/2015 0.5 U 0.667 0.02 U 1260 220 10900 600 2 U 2 U General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 1 of 1 Table 7-12. NCDENR March 2014 Sampling Results - Totals NCDENR Regional Office Table Sample ID Division of Water Resources Lab Number Latitude (°) Longitude (°) Appropriate Water Quality Standard Temp. CC) pH (SU) Dissolved Oxygen (mg/L) Dissolved Oxygen (% Saturation) Specific Conductance (uu/cm) Turbidity (NTU) ORP (mV) Flow (gpm) Aluminum (Ng/L) Antimony (Ng/L) Arsenic (Ng/L) Barium (Ng/L) GW - 2L NE 6.5-8.5 NE NE NE NE NE NE NE 1 10 700 SW - 2B (Class WS) NE 6.0-9.0 > 6.0 NE NE NE NE NE 87 5.6 10 1000 HD-21 AC06019 36.29740581 -80.07442186 GW 11.8 5.09 6.55 N/A 1509 N/A N/A 8.45344 130 < 10 8.8 300 HD-26 AC06020 36.29737236 -80.07469492 GW 11.3 5.48 8.05 N/A 78.7 N/A N/A 0.211336 < 50 < 10 < 2.0 30 TF3 AC06021 36.29753892 -80.07424772 GW 13.3 5.44 8.3 N/A 1502 N/A N/A 2.4 inches' 280 < 10 8.9 350 TF2 AC06022 36.29744624 -80.07609579 GW 11.8 5.32 6.39 N/A 1683 N/A N/A 2.8 inches* 110 < 10 10 230 TF1 AC06023 36.29748574 -80.07608171 GW 11.9 5.3 6.89 N/A 1740 N/A N/A 2.9 inches' 95 < 10 12 210 HD-11A AC06024 36.29751773 -80.0759519 GW 13.6 5.76 6.55 N/A 1865 N/A N/A 0.634008 < 50 < 10 9.9 240 HD-7A AC06025 36.29759068 -80.07563587 GW 11.4 5.4 2.18 N/A 1815 N/A N/A 7.9251 330 < 10 11 280 ABW AC06026 36.29782117 -80.07556825 SW 13.2 5.81 9.03 N/A 1478 N/A N/A N/A 130 < 10 8.2 270 003 AC06027 36.30076895 -80.07624873 SW 9.2 7.52 11.2 N/A 1889 N/A N/A N/A 140 < 10 12 100 BCSW008 AC06655 36.27392843 -80.05996946 SW 8.3 6.19 6.6 N/A 526 N/A N/A N/A 130 < 10 < 2.0 53 BCSWBWGY AC06656 N/A N/A SW 6.3 6.9 11.24 N/A 478 N/A N/A N/A < 50 < 10 < 2.0 57 BCSW007 AC06657 36.27837895 -80.05591381 SW 12.5 7.3 10.6 N/A 282 N/A N/A N/A < 50 < 10 < 2.0 50 BCSW018A AC06741 36.27825018 -80.06672666 SW 3.9 6.95 12.4 N/A 1407 N/A N/A N/A 280 < 10 5 47 BCSW019 AC06742 36.27744256 -80.07167786 SW 7.7 6.6 11 N/A 303 N/A N/A N/A 100 < 10 < 2.0 28 BCWW002 AC06743 36.2855478 -80.06495082 SW N/A N/A N/A N/A N/A N/A N/A N/A 110 50 P 220 530 Notes: 1. Results from North Carolina Division of Water Quality, NC Division of Water Resources, and Pace Analytical Laboratory, Inc, from samples collected by NCDENR in mid -March 2014 2. SW - 2B (Class WS) refers to the Class WS standards found in 15A NCAC 2B .0200 Surface Water and Wetlands Standards last amended January 1, 2015 3. NE indicates that a standard has not been established for that parameter 4. N/A means that the constituent was not analyzed at that seep 5. Highlighted cells signify an exceedance of a 2L or 213 standard; the color corresponds with the relevant standard 6. Concentrations presented in micrograms per liter (Ng/L) or milligrams per liter (mg/L) 7. Temperature reported in degrees centigrade 8. pH reported in standard units (SU) 9. u indicates the unit "mho" the reciprocal of ohm 10. NTU indicates Nephalometric Turbidity Units 11. mV indicates millivolts 12. gpm signifies gallons per minute 13. GW - 2L refers to the Class GA standards found in 15A NCAC 02L .0202 Groundwater Quality Standards, last amended April 1, 2013 14. "<" indicates a sample less than the laboratory practical quantitation (PQL) limit 15. P indicates an elevated PQL due to matrix interference or dilution factor not equal to one 16. J2 indicates that the reported value is estimated as it did not meet relevant quality controls for precision or accuracy 17. J3 indicates that the reported value is estimated as the sample matrix interfered with accurate determination 18. Analytical results in this table provided to Duke Energy by NCDENR Belews Creek Steam Station Page 1 of 4 Table 7-12. NCDENR March 2014 Sampling Results - Totals NCDENR Regional Office Table Sample ID Division of Water Resources Lab Number Latitude (°) Longitude (°) Appropriate Water Quality Standard Boron (pg/L) Bromide (mg/L) Cadmium (Ng/L) Calcium (mg/L) Chloride (mg/L) Chromium (Ng/L) Copper (Ng/L) Fluoride (mg/L) Iron (pg/L) Lead (Ng/L) Magnesium (mg/L) Manganese (Ng/L) GW - 2L 700 NE 2 NE 250 10 1000 2 300 15 NE 50 SW - 213 (Class WS) NE NE 2 NE 250 50 7 1.8 NE 25 NE NE HD-21 AC06019 36.29740581 -80.07442186 GW 6900 N/A 2.6 160 490 < 10 < 2.0 < 0.4 930 < 2.0 59 26000 HD-26 AC06020 36.29737236 -80.07469492 GW 60 N/A < 0.50 0.97 16 < 10 < 2.0 < 0.4 1800 < 2.0 1.1 1200 TF3 AC06021 36.29753892 -80.07424772 GW 6900 N/A 2.6 150 460 < 10 < 2.0 < 0.4 700 < 2.0 55 21000 TF2 AC06022 36.29744624 -80.07609579 GW 11000 N/A < 0.50 220 480 < 10 < 2.0 < 0.4 140 < 2.0 54 6100 TF1 AC06023 36.29748574 -80.07608171 GW 11000 N/A < 0.50 230 520 < 10 < 2.0 < 0.4 100 < 2.0 55 5300 HD-11A AC06024 36.29751773 -80.0759519 GW 13000 N/A < 0.50 250 520 < 10 < 2.0 < 0.4 < 50 < 2.0 59 5400 HD-7A AC06025 36.29759068 -80.07563587 GW 13000 N/A 0.89 230 500 < 10 < 2.0 < 0.4 190 < 2.0 60 11000 ABW AC06026 36.29782117 -80.07556825 SW 8400 N/A 0.66 170 430 < 10 < 2.0 < 0.4 1000 < 2.0 51 8400 003 AC06027 36.30076895 -80.07624873 SW 15000 N/A < 0.50 250 510 < 10 < 2.0 < 0.4 170 < 2.0 67 440 BCSW008 AC06655 36.27392843 -80.05996946 SW < 50 < 10 P < 0.50 100 4.6 < 10 < 2.0 < 0.4 11000 < 2.0 9.3 1100 BCSWBWGY AC06656 N/A N/A SW < 50 < 10 P < 0.50 84 3.7 < 10 < 2.0 < 0.4 1300 < 2.0 7 290 BCSW007 AC06657 36.27837895 -80.05591381 SW 160 < 10 P < 0.50 34 4.5 < 10 < 2.0 < 0.4 590 < 2.0 6.8 270 BCSW018A AC06741 36.27825018 -80.06672666 SW 5900 < 1.0 5.3 140 17 < 10 < 2.0 < 0.4 350 < 2.0 96 3000 BCSW019 AC06742 36.27744256 -80.07167786 SW 790 < 1.0 < 0.50 26 5.6 < 10 < 2.0 < 0.4 490 < 2.0 15 280 BCWW002 AC06743 36.2855478 -80.06495082 SW 280000 260 < 0.50 5600 12000 100 P < 2.0 250 J3 1 53 1 < 2.0 1700 7900 Notes: 1. Results from North Carolina Division of Water Quality, NC Division of Water Resources, and Pace Analytical Laboratory, Inc, from samples collected by NCDENR in mid -March 2014 2. SW - 2B (Class WS) refers to the Class WS standards found in 15A NCAC 2B .0200 Surface Water and Wetlands Standards last amended January 1, 2015 3. NE indicates that a standard has not been established for that parameter 4. N/A means that the constituent was not analyzed at that seep 5. Highlighted cells signify an exceedance of a 2L or 2B standard; the color corresponds with the relevant standard 6. Concentrations presented in micrograms per liter (Ng/L) or milligrams per liter (mg/L) 7. Temperature reported in degrees centigrade 8. pH reported in standard units (SU) 9. U indicates the unit "mho" the reciprocal of ohm 10. NTU indicates Nephalometric Turbidity Units 11. mV indicates millivolts 12. gpm signifies gallons per minute 13. GW - 2L refers to the Class GA standards found in 15A NCAC 02L .0202 Groundwater Quality Standards, last amended April 1, 2013 14. "<" indicates a sample less than the laboratory practical quantitation (PQL) limit 15. P indicates an elevated PQL due to matrix interference or dilution factor not equal to one 16. J2 indicates that the reported value is estimated as it did not meet relevant quality controls for precision or accuracy 17. J3 indicates that the reported value is estimated as the sample matrix interfered with accurate determination 18. Analytical results in this table provided to Duke Energy by NCDENR Belews Creek Steam Station Page 2 of 4 Table 7-12. NCDENR March 2014 Sampling Results - Totals NCDENR Regional Office Table Sample ID Division of Water Resources Lab Number Latitude (°) Longitude (°) Appropriate Water Quality Standard Molybdenum (pg/L) Nickel (pg/L) Potassium (mg/L) Selenium (pg/L) Sodium (mg/L) Strontium (pg/L) Sulfate (mg/L) Thallium (pg/L) TDS (mg/L) Zinc (pg/L) Alk (mg/L) Bicarb (mg/L) GW - 2L NE 100 20 NE NE 250 0.2 500 1 NE NE SW - 2B (Class WS) NE 25 5 NE 14000 250 0.24 500 0.05 NE NE HD-21 AC06019 36.29740581 -80.07442186 GW < 10 43 N/A 27 N/A 860 < 2.0 < 2.0 1180 47 N/A N/A HD-26 AC06020 36.29737236 -80.07469492 GW < 10 2 N/A < 5.0 N/A < 10 < 2.0 < 2.0 34 10 N/A N/A TF3 AC06021 36.29753892 -80.07424772 GW < 10 32 N/A 27 N/A 810 < 2.0 < 2.0 848 50 N/A N/A TF2 AC06022 36.29744624 -80.07609579 GW < 10 12 N/A 32 N/A 770 110 < 2.0 1100 35 N/A N/A TF1 AC06023 36.29748574 -80.07608171 GW < 10 4.7 N/A 35 N/A 780 120 < 2.0 998 J3 36 N/A N/A HD-11A AC06024 36.29751773 -80.0759519 GW < 10 < 2.0 N/A 31 N/A 950 120 < 2.0 1130 39 N/A N/A HD-7A AC06025 36.29759068 -80.07563587 GW < 10 16 N/A 32 N/A 1100 120 < 2.0 1100 44 N/A N/A ABW AC06026 36.29782117 -80.07556825 SW < 10 16 N/A 24 N/A 740 76 < 2.0 879 44 N/A N/A 003 AC06027 36.30076895 -80.07624873 SW 16 16 N/A 38 N/A 910 150 < 2.0 1100 49 N/A N/A BCSW008 AC06655 36.27392843 -80.05996946 SW < 10 5.5 N/A < 5.0 N/A 120 340 < 2.0 444 N/A N/A N/A BCSWBWGY AC06656 N/A N/A SW < 10 < 2.0 N/A < 5.0 N/A 100 180 < 2.0 350 N/A N/A N/A BCSW007 AC06657 36.27837895 -80.05591381 SW < 10 < 2.0 N/A < 5.0 N/A 92 86 < 2.0 202 N/A N/A N/A BCSW018A AC06741 36.27825018 -80.06672666 SW < 10 69 N/A 27 N/A 590 680 < 2.0 1130 N/A N/A N/A BCSW019 AC06742 36.27744256 -80.07167786 SW < 10 < 2.0 N/A < 5.0 N/A 88 110 < 2.0 221 N/A N/A N/A BCWW002 AC06743 36.2855478 -80.06495082 SW 50 P 20 P N/A 740 N/A 17000 1600 lop 24200 J3 N/A N/A N/A Notes: 1. Results from North Carolina Division of Water Quality, NC Division of Water Resources, and Pace Analytical Laboratory, Inc, from samples collected by NCDENR in mid -March 2014 2. SW - 2B (Class WS) refers to the Class WS standards found in 15A NCAC 2B .0200 Surface Water and Wetlands Standards last amended January 1, 2015 3. NE indicates that a standard has not been established for that parameter 4. N/A means that the constituent was not analyzed at that seep 5. Highlighted cells signify an exceedance of a 2L or 2B standard; the color corresponds with the relevant standard 6. Concentrations presented in micrograms per liter (pg/L) or milligrams per liter (mg/L) 7. Temperature reported in degrees centigrade 8. pH reported in standard units (SU) 9. U indicates the unit "mho" the reciprocal of ohm 10. NTU indicates Nephalometric Turbidity Units 11. mV indicates millivolts 12. gpm signifies gallons per minute 13. GW - 2L refers to the Class GA standards found in 15A NCAC 02L .0202 Groundwater Quality Standards, last amended April 1, 2013 14. "<" indicates a sample less than the laboratory practical quantitation (PQL) limit 15. P indicates an elevated PQL due to matrix interference or dilution factor not equal to one 16. J2 indicates that the reported value is estimated as it did not meet relevant quality controls for precision or accuracy 17. J3 indicates that the reported value is estimated as the sample matrix interfered with accurate determination 18. Analytical results in this table provided to Duke Energy by NCDENR Belews Creek Steam Station Page 3 of 4 Table 7-12. NCDENR March 2014 Sampling Results - Totals NCDENR Regional Office Table Sample ID Division of Water Resources Lab Number Latitude (°) Longitude (°) Appropriate Water Quality Standard Carbonate (mg/L) GW - 2L NE SW - 2B (Class WS) NE HD-21 AC06019 36.29740581 -80.07442186 GW N/A HD-26 AC06020 36.29737236 -80.07469492 GW N/A TF3 AC06021 36.29753892 -80.07424772 GW N/A TF2 AC06022 36.29744624 -80.07609579 GW N/A TF1 AC06023 36.29748574 -80.07608171 GW N/A HD-11A AC06024 36.29751773 -80.0759519 GW N/A HD-7A AC06025 36.29759068 -80.07563587 GW N/A ABW AC06026 36.29782117 -80.07556825 SW N/A 003 AC06027 36.30076895 -80.07624873 SW N/A BCSW008 AC06655 36.27392843 -80.05996946 SW N/A BCSWBWGY AC06656 N/A N/A SW N/A BCSW007 AC06657 36.27837895 -80.05591381 SW N/A BCSW018A AC06741 36.27825018 -80.06672666 SW N/A BCSW019 AC06742 36.27744256 -80.07167786 SW N/A BCWW002 AC06743 36.2855478 -80.06495082 SW N/A Notes: 1. Results from North Carolina Division of Water Quality, NC Division of Water Resources, and Pace Analytical Laboratory, Inc, from samples collected by NCDENR in mid -March 2014 2. SW - 2B (Class WS) refers to the Class WS standards found in 15A NCAC 2B .0200 Surface Water and Wetlands Standards last amended January 1, 2015 3. NE indicates that a standard has not been established for that parameter 4. N/A means that the constituent was not analyzed at that seep 5. Highlighted cells signify an exceedance of a 2L or 2B standard; the color corresponds with the relevant standard 6. Concentrations presented in micrograms per liter (Ng/L) or milligrams per liter (mg/L) 7. Temperature reported in degrees centigrade 8. pH reported in standard units (SU) 9. U indicates the unit "mho" the reciprocal of ohm 10. NTU indicates Nephalometric Turbidity Units 11. mV indicates millivolts 12. gpm signifies gallons per minute 13. GW - 2L refers to the Class GA standards found in 15A NCAC 02L .0202 Groundwater Quality Standards, last amended April 1, 2013 14. "<" indicates a sample less than the laboratory practical quantitation (PQL) limit 15. P indicates an elevated PQL due to matrix interference or dilution factor not equal to one 16. J2 indicates that the reported value is estimated as it did not meet relevant quality controls for precision or accuracy 17. J3 indicates that the reported value is estimated as the sample matrix interfered with accurate determination 18. Analytical results in this table provided to Duke Energy by NCDENR Belews Creek Steam Station Page 4 of 4 Table 7-13. NCDENR March 2014 Sample Locations Re -Sample Results - Totals Analyte Aluminum Aluminum Antimony Antimony Arsenic Arsenic Barium Barium Beryllium Beryllium Boron Boron CAS RN 7429-90-5 7429-90-5 7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-39-3 7440-39-3 7440-41-7 7440-41-7 7440-42-8 7440-42-8 Fraction D T D T D T D T D T D T Result Unit ug/I ug/I ug/l ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD NS NS NS NS 10 10 700 700 NS NS 700 700 IMAC* NS NS 1 1 NS NS NS NS 4 4 NS NS Sample Name Sample Date 003 7/17/2015 NA NA 1.1 1.2 6.4 6.9 73 79 0.19 J 0.23 15600 15700 ABW 7/20/2015 NA NA 0.5 U 0.5 U 3.1 3.4 240 240 0.94 1.1 9300 9200 BCSW008 7/20/2015 NA NA 0.5 U 0.5 U 0.14 J 0.19 J 85 88 1.1 1.1 29 J 50 U BCSW018A 7/20/2015 NA NA 0.5 U 0.5 U 0.73 0.83 17 19 0.2 U 0.2 U 93 75 BCSW019 7/20/2015 NA NA 0.5 U 0.5 U 0.14 J 0.23 J 16 18 0.2 U 0.094 J 640 670 BCWW002 7/20/2015 NA NA 10 U 10 U 2.5 J 3.8 J 210 240 4 U 4 U 147000 J+ 251000 HD-7A 7/1712015 NA NA 0.5 U 0.5 U 3.4 4.5 210 220 0.61 0.71 11600 11000 HD-11A 7/20/2015 NA NA 0.5 U 0.5 U 2.1 2.2 170 180 0.51 0.55 13800 13200 HD-21 7/17/2015 NA NA 0.5 U 0.5 U 3.6 4.8 280 280 2 1.9 7000 6700 HD-26 7/17/2015 NA NA 0.5 U 0.5 U 0.2 J 0.26 J 120 120 0.34 0.34 58 63 TF-1 7/17/2015 NA NA 0.5 U 0.5 U 5 6.8 180 190 0.55 0.69 13800 J- 12000 TF-1 7/27/2015 NA NA NA NA NA NA NA NA NA NA NA NA TF-2 7/17/2015 1 NA NA 1 0.5 U 1 0.5 U 1 4.2 1 5.6 1 200 1 200 1 0.66 1 0.75 1 11200 1 9700 TF-3 7/20/2015 1 NA NA 1 0.5 U 1 0.5 U 1 3.6 1 3.6 1 280 1 290 1 2.1 1 2.2 1 7500 17400 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 'NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 1 of 5 Table 7-13. NCDENR March 2014 Sample Locations Re -Sample Results - Totals Analyte Cadmium Cadmium Chromium Chromium Cobalt Cobalt Copper Copper Iron Iron Lead Lead CAS RN 7440-43-9 7440-43-9 7440-47-3 7440-47-3 7440-48-4 7440-48-4 7440-50-8 7440-50-8 7439-89-6 7439-89-6 7439-92-1 7439-92-1 Fraction D T D T D T D T D T D T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD 2 2 10 10 NS NS 1000 1000 300 300 15 15 IMAC* NS NS NS NS 1 1 NS NS NS NS NS NS Sample Name Sample Date 003 7/17/2015 0.055 J 0.12 J+ 0.5 UJ 1.1 0.23 J 2.2 0.94 J 1.3 NA NA 0.1 U 0.08 J+ ABW 7/20/2015 0.66 0.66 0.47 J 0.2 J 74.2 75.5 1.2 0.36 J NA NA 0.054 J 0.079 J BCSW008 7/20/2015 0.068 J 0.077 J 0.27 J+ 0.31 J 4.4 4.1 0.81 J+ 0.38 J NA NA 0.1 U 0.1 U BCSW018A 7/20/2015 0.08 U 0.08 U 0.37 J+ 0.32 J 0.5 U 0.5 U 2.1 J+ 1.2 NA NA 0.1 U 0.15 BCSW019 7/20/2015 0.08 U 0.08 U 0.39 J+ 0.57 0.21 J 0.3 J 0.91 J+ 3.7 NA NA 0.1 U 0.14 BCWW002 7/20/2015 1.6 U 1.6 U 10 U 10 U 10 U 10 U 20 U 20 U NA NA 2 U 2 U HD-7A 7/17/2015 0.71 0.72 0.5 U 0.5 U 65.1 66 0.54 J 0.45 J+ NA NA 0.57 0.47 HD-11A 7/20/2015 0.36 0.38 0.42 J 0.99 31.3 30.4 1.7 0.4 J NA NA 0.1 U 0.1 U HD-21 7/17/2015 1.5 1.5 0.25 J 0.5 U 260 268 0.83 J 0.55 J+ NA NA 0.51 0.56 HD-26 7/17/2015 0.18 0.18 0.27 J 0.45 J 122 119 0.75 J 0.77 J+ NA NA 1.1 1.2 TF-1 7/17/2015 0.26 0.3 0.5 U 0.37 J 42.3 44.2 0.79 J 0.68 J+ NA NA 0.16 0.36 J TF-1 7/27/2015 NA NA NA NA NA NA NA NA NA NA NA NA TF-2 7/17/2015 0.33 0.36 0.18 J 0.33 J 39.9 41.5 0.73 J 0.63 J+ NA NA 0.16 0.24 J TF-3 7/20/2015 1.9 2 0.22 J 0.29 J 191 193 1.9 0.54 J NA NA 0.31 0.38 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 'NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 2 of 5 Table 7-13. NCDENR March 2014 Sample Locations Re -Sample Results - Totals Analyte Manganese Manganese Mercury Mercury Molybdenum Molybdenum Nickel Nickel Selenium Selenium Strontium Strontium CAS RN 7439-96-5 7439-96-5 7439-97-6 7439-97-6 7439-98-7 7439-98-7 7440-02-0 7440-02-0 7782-49-2 7782-49-2 7440-24-6 7440-24-6 Fraction D T D T D T D T D T D T Result Unit ug/I ug/I ug/l ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD 50 50 1 1 NS NS 100 100 20 20 NS NS IMAC* NS NS NS NS NS NS NS NS NS NS NS NS Sample Name Sample Date 003 7/17/2015 84 640 NA 0.00156 22.8 23.2 1.5 5.4 5.6 5.9 880 880 ABW 7/20/2015 8300 8400 NA 0.0157 0.5 U 0.5 U 12.3 12.3 3.3 4 660 660 BCSW008 7/20/2015 1300 1300 NA 0.00262 0.5 U 0.5 U 1.1 J+ 0.88 0.98 0.97 98 100 BCSW018A 7/20/2015 5 U 13 NA 0.000425 J 1.9 1.8 0.88 J+ 0.2 J 0.4 J 0.37 J 71 77 BCSW019 7/20/2015 78 110 NA 0.00133 J+ 0.16 J 0.21 J 0.74 J+ 0.8 0.36 J 0.39 J 76 86 BCWW002 7/20/2015 3700 5000 NA 0.00561 35.6 12.4 10 U 10 U 10 U 10 U 7300 9900 HD-7A 7/17/2015 7800 7500 NA 0.0174 0.5 U 0.5 U 7.7 8 1.7 5.9 860 770 HD-11A 7/20/2015 4000 4000 NA 0.00385 0.89 0.85 2.7 2.8 3.3 3.8 660 660 HD-21 7/17/2015 27200 27000 J- NA 0.0112 0.5 U 0.5 U 44 46.7 1.7 7.1 680 670 HD-26 7/17/2015 4200 4200 NA 0.154 0.5 U 0.5 U 8.3 8.8 0.5 U 0.36 J 26 26 TF-1 7/17/2015 3700 3800 NA NA 0.5 U 0.5 U 4.8 4.9 2.8 11.2 590 600 TF-1 7/27/2015 NA NA NA 0.0352 NA NA NA NA NA NA NA NA TF-2 7/17/2015 4400 4400 NA 0.0354 0.5 U 0.5 U 4.8 5.1 2.3 9.8 610 600 TF-3 7/20/2015 23100 22700 NA 0.0158 0.5 U 0.5 U 35.8 36.7 4.2 4.8 710 710 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 'NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 3 of 5 Table 7-13. NCDENR March 2014 Sample Locations Re -Sample Results - Totals Analyte Thallium Thallium Vanadium Vanadium Zinc Zinc Alkalinity, HCO3 Alkalinity, CO3 Alkalinity, lab Calcium Chloride Magnesium CAS RN 7440-28-0 7440-28-0 7440-62-2 7440-62-2 7440-66-6 7440-66-6 ALK-HCO3 ALK-0O3 ALK-LAB 7440-70-2 16887-00-6 7439-95-4 Fraction D T D T D T N N N T N T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD NS NS NS NS 1000 1000 NS NS NS NS 250000 NS IMAC* 0.2 0.2 0.3 0.3 NS NS NS NS NS NS NS NS Sample Name Sample Date 003 7/17/2015 1.2 1.2 5.5 6.4 10 U 18 26500 5000 U 26500 221000 501000 77000 ABW 7/20/2015 0.36 0.39 1 U 1 U 11 9.2 J 5400 5000 U 5400 180000 426000 49900 BCSWO08 7/20/2015 0.031 J 0.033 J 1 U 1 U 24 J+ 25 18000 5000 U 18000 10400 3500 5670 BCSWO18A 7/20/2015 0.021 J 0.021 J 0.95 J 1.5 10 U 10 U 28400 5000 U 28400 7760 7900 3530 BCSWO19 7/20/2015 0.016 J 0.1 U 1 U 0.68 J 8.4 J+ 10 U 30600 5000 U 30600 17900 3300 10700 BCWWO02 7/20/2015 2 U 2 U 20 U 20 U 10 U 100 U 49100 5000 U 49100 3080000 4490000 803000 HD-7A 7/17/2015 0.42 0.36 1 U 1 U 8.5 J 6.6 J 6400 5000 U 6400 200000 441000 48900 HD-11A 7/20/2015 0.41 0.42 1 U 1 U 4.3 J 4 J 9900 5000 U 9900 187000 436000 55200 HD-21 7/17/2015 0.58 0.6 1 U 1 U 23 24 3200 J 5000 U 3200 J 147000 438000 J+ 51400 HD-26 7/17/2015 0.24 0.25 1 U 1 U 20 19 4200 J 5000 U 4200 J 2520 58900 4200 TF-1 7/17/2015 0.33 0.31 J 1 U 0.38 J 6 J 6.4 J 2300 J 5000 U 2300 J 213000 455000 44900 TF-1 7/27/2015 NA NA NA NA NA NA NA NA NA NA NA NA TF-2 7/17/2015 0.36 0.34 J 1 U 1 U 5.5 J 7.5 J 2800 J 5000 U 2800 J 205000 441000 45800 TF-3 7/20/2015 0.49 0.51 1 U 1 U 17 16 2800 J 5000 U 2800 J 157000 436000 52500 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 'NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 4 of 5 Table 7-13. NCDENR March 2014 Sample Locations Re -Sample Results - Totals Analyte Methane Nitrogen, NO2 plus NO3 Potassium Sodium Sulfate Sulfide Total Organic Carbon Total Dissolved Solids Total Suspended Solids CAS RN 74-82-8 NO2-NO3 7440-09-7 7440-23-5 14808-79-8 18496-25-8 TOC TDS TSS Fraction N N T T N N N N N Result Unit ug/I ug/l ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD NS NS NS NS 250000 NS NS 500000 NS IMAC* NS NS NS NS NS NS NS NS NS Sample Name Sample Date 003 7/17/2015 10 U 20 U 7080 13200 150000 100 U 3900 14000000 3500 ABW 7/20/2015 4.5 J+ 36 5030 13000 79700 100 U 900 J 1340000 2500 U BCSWO08 7/20/2015 57.5 78 5000 U 8950 54300 100 U 870 J 125000 3000 BCSWO18A 7/20/2015 5.2 J+ 20 U 3680 J 7200 8600 100 U 3300 63000 2500 U BCSWO19 7/20/2015 5.4 J+ 150 2880 J 10600 75100 100 U 3300 163000 2500 U BCWW002 7/20/2015 1.5 J+ 450 32000 54300 854000 160 U 20000 13800000 10700 HD-7A 7/17/2015 10 U 20 U 4650 J 11800 113000 100 U 880 J 1360000 5000 U HD-11A 7/20/2015 5.8 J+ 20 U 5240 9980 98100 100 U 840 J 1290000 2500 U HD-21 7/17/2015 13.4 J+ 20 U 5560 19700 44100 J+ NA 680 J 1170000 2500 U HD-26 7/17/2015 6.2 J+ 20 U 5000 U 25800 960 J 100 U 13500 150000 2500 U TF-1 7/17/2015 3 J+ 60 2680 J 9930 115000 100 U 850 J 1200000 2500 U TF-1 7/27/2015 NA NA NA NA NA NA NA NA NA TF-2 7/17/2015 2.5 J+ 82 3050 J 10300 107000 100 U 850 J 1140000 2500 U TF-3 7/20/2015 7.5 J+ 14 J 5710 17800 48600 100 UJ 640 J 1240000 2500 U General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 'NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 5 of 5 Table 7-14. NCDENR March 2014 Sample Locations Re -Sample Results - Speciation Analyte As(III) As(V) Chromium (III) Chromium (VI) Fe(II) Fe(III) Mn(II) Mn(IV) Se(IV) Se(VI) CAS RN 7784-46-5 10103-60-3 16065-83-1 18540-29-9 1345-25-1 1309-37-1 1344-43-0 1313-13-9 10102-18-8 13410-01-0 Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I Sample Name Sample Date 003 7/17/2015 0.767 J+ 4.33 0.78 0.41 40 U 47.5 109 140 2.46 1.56 J ABW 7/20/2015 0.5 UJ 0.806 NA NA 124 J- 2006 9180 2320 2 U 2 U HD-7A 7/17/2015 0.398 J+ 0.5 U 0.377 0.02 U 234 59 10600 2U 2 U 2 U HD-11A 7/20/2015 0.176 J+ 0.5 U NA NA 30 U 38.8 4930 560 2 U 2 U HD-21 7/17/2015 0.155 J+ 0.5 UJ 0.322 0.02 U 1010 160 30800 2U 2 U 2 U HD-26 7/17/2015 0.155 J+ 0.5 UJ 0.346 0.02 U 4260 2 U 4760 2U 2 U 2 U TF-1 7/17/2015 0.155 J+ 0.5 U 0.404 0.02 U 127 150 5520 2U 2 U 2 U TF-2 7/17/2015 0.155 J+ 0.194 J 0.377 0.02 U 123 45 6400 60 2 U 2 U TF3 7/20/2015 0.347 J+ 0.5 U NA NA 39.6 J- 826.4 24400 1900 2 U 2 U BCSW 008 7/20/2015 0.5 UJ 0.5 U NA NA 605 J- 5205 1310 240 2 U 1.18 J BCSW 018A 7/20/2015 0.5 UJ 0.405 J 0.313 0.034 J- 30 UJ 43.2 0.681 J 27.819 2 U 2 U BCSW 019 7/20/2015 0.5 UJ 0.226 J NA NA 30 UJ 554 90.5 15.5 2 U 2 U BCWW 002 7/20/2015 0.304 J+ 0.174 J NA NA 30 UJ 532 4930 1080 2 U 2 U General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 1 of 1 Table 8-1. Soil and Ash Parameters and Analytical Methods Inorganic Compounds Units Method Antimony mg/kg EPA 6020 Aluminum mg/kg EPA 6010 Arsenic mg/kg EPA 6020 Barium mg/kg EPA 6010 Beryllium mg/kg EPA 6020 Boron mg/kg EPA 6010 Cadmium mg/kg EPA 6020 Calcium mg/kg EPA 6010 Chloride mg/kg SM4500-CI-E Chromium mg/kg EPA 6010 Cobalt mg/kg EPA 6020 Copper mg/kg EPA 6010 Iron mg/kg EPA 6010 Lead mg/kg EPA 6020 Manganese mg/kg EPA 6010 Mercury mg/kg EPA Method 7470A/7471 Molybdenum mg/kg EPA 6010 Nickel mg/kg EPA 6010 Nitrate mg/kg EPA 9056 pH SU EPA 9045 Potassium mg/kg EPA 6010 Selenium mg/kg EPA 6020 Sodium mg/kg EPA 6010 Strontium mg/kg EPA 6010 Sulfate mg/kg EPA 9056 Thallium (low level) mg/kg EPA 6020 Vanadium mg/kg EPA 6020 Zinc mg/kg EPA 6010 Total Organic Carbon Units Method TOC mg/kg EPA 9060 Notes: 1. Soil samples to be analyzed for Total Inorganics using USEPA Methods 6010/6020 and pH using USEPA Method 9045, as noted above. 2. Ash samples to be analyzed for Total Inorganics using USEPA Methods 6010/6020 and pH using USEPA Method 9045; select ash samples will also be analyzed for leaching potential using SPLP Extraction Method 1312 in conjunction with USEPA Methods 6010/6020. SPLP results to be reported in units of mg/L for comparison to 2L Standards. 3. Samples to be analyzed for Total Organic Carbon using method EPA 9060. Sample result in concentration units of mg/kg of organic carbon on a dry weight basis. Belews Creek Steam Station Page 1 of 1 Table 8-2. Total Inorganic Results - Background Soil Analyte Aluminum Antimony Arsenic Barium Boron Beryllium Cadmium Chromium Cobalt Copper Iron Lead Manganese CAS RN 7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-42-8 7440-41-7 7440-43-9 7440-47-3 7440-48-4 7440-50-8 7439-89-6 7439-92-1 7439-96-5 Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg NCDENR Industrial Health PSRG 100000 94 3 44000 46000 460 200 100000 70 9400 100000 800 5200 NCDENR Protection of Groundwater PSRG NS 0.9 5.8 580 45 63 3 360000 0.9 700 150 270 65 Sample Name Sample Date BG-lD(1-2) 3/26/2015 17400 3.1 U 34.6 41.5 15.5 U 0.89 0.37 U 28.7 1.7J 11.9 38100 21.1 57.6 BG-1 D(11) 3/27/2015 5490 3.9 U 10.9 26.8 12.2 J 0.68 0.47 U 4.7 28.6 J- 4.5 12200 77.3 J- 1010 BG-1 D(21) 3/27/2015 6210 J+ 3.9 U 7.5 50 13.2 J 0.88 0.47 U 2.3 6.8 3.5 12400 J+ 25.9 257 J+ BG-1 D(31) 3/27/2015 12700 3.5 U 30.7 42.3 38.6 2.8 0.42 U 17.1 37.9 9.8 40400 17.1 871 6G-2D(1-2) 3/23/2015 13800 3.8 U 3.3 J 25.1 18.9 U 0.32 J 0.45 U 8.5 3.8 U 7.6 24100 18.7 53.1 BG-2D(10-12) 3/24/2015 9670 3.5 U 2.7 J 70.7 34.5 J 0.86 0.42 U 5.3 5_5 8.1 32300 21.7 245 BG-2D(20-22) 3/24/2015 6680 3.7 U 3.7 U 88.9 18.5 U 0.29 J 0.45 U 1.9 UJ 5 4.8 9570 11.3 450 BG-21D(30-32) 3/24/2015 7530 4 U 4 U 91.9 20.1 U 0.33 J 0.48 U 2 UJ 5 1.8 J 13000 6.6 680 BG-2S(40-41.5) 3/26/2015 7110 3.1 U 3.1 U 90 15.5 U 0.44 0.37 U 1.1 J 3_7 3.7 11700 7.8 391 BG-2S(50-51.5) 3/26/2015 6440 3.5 U 2.1 J 125 17.6 U 1.2 0.42 U 3.4 5_8 4.8 17100 8.4 305 BG-2S(55-60) 3/26/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA BG-2D(60-61.5) 3/24/2015 20000 3.9 U 3.2 J 124 19.6 U 1 0.47 U 51.7 28.1 40.7 36400 12.8 564 6G-3S(1-2) 5/12/2015 14800 6.4 U 6.4 U 29.9 14 J 0.37 0.77 U 15.9 6.4 U 12.9 27800 26.6 39.6 BG-3S(10-12) 5/12/2015 10000 7.6 U 7.6 U 32.3 20.9 0.75 0.91 U 21.5 15.6 14.3 44200 6.2 J 513 6G-3S(20-22) 5/12/2015 9280 6.1 U 6.1 U 68.4 16.6 0.76 0.73 U 15.4 8_1 28.5 36800 14.4 216 BG-3S(27-28) 5/13/2015 14500 8.4 U 6.2 J 84.4 20.9 U 11.8 1 U 9.5 12.9 34 98200 6.5 J 756 BG-3S(30-32) 5/12/2015 10500 8 U 4.4 J 153 19.3 J 4.6 0.96 U 16.4 12.5 15.4 43600 4.3 J 656 BG-3S(33-34) 5/13/2015 8910 7.1 U 7.1 U 61.9 17.6 U 0.66 0.85 U 2.6 J+ 7.1 U 4.7 7480 4.9 J 78.3 6G-3S(40-42) 5/13/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA BG-3S(42-43) 5/13/2015 5850 6.9 U 6.9 U 39.3 17.2 U 0.83 0.83 U 2.1 J+ 6.9 U 6.1 6970 7 263 MW-202BR(40.0-42.0) 3/20/2015 3960 2.8 U 1.6 J 32.7 5.6 0.64 0.34 U 21+ 11.5 3.4 6870 4.7 156 MW-202BR(47-49) 3/20/2015 2050 3.2 U 3.2 U 27.6 3.2 U 0.33 0.38 U 0.63 J+ 3.2 UJ 0.86 J+ 1130 3.9 18.5 MW 202BR 60-61.5 3/9/2015 6030 3.4 U 3.4 U 117 10.3 1.9 0.24 J 10.1 8.7 11.8 12000 5.2 213 General Notes: mg/kg - milligrams per kilogram NA - Not analyzed or not reported by analytical laboratory Std. Units - pH units Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either applicable criteria. bold - indicates exceedance of NCDENR Industrial Health Based PSRG Italic/underline- indicates exceedance of NCDENR Protection of Groundwater PSRG North Carolina Department of Environment and Natural Resources Division of Waste Management Soil Remediation Goals Table (March 2015) - Preliminary Industrial Health Based Soil Remediation Goal (PSRG) and Protection of Groundwater PSRG. "*Note: No PSRG for Total Chromium is currently available, as a surrogate the PSRG for Trivalent Chromium was used for comparison purposes only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 1 of 3 Table 8-2. Total Inorganic Results - Background Soil Analyte Mercury Molybdenum Nickel Selenium Strontium Thallium Vanadium Zinc Calcium Chloride Magnesium Nitrate Potassium CAS RN 7439-97-6 7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 7440-66-6 7440-70-2 16887-00-6 7439-95-4 14797-55-8 7440-09-7 Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg NCDENR Industrial Health PSRG 8 1200 4400 1200 100000 2.4 1200 70000 NS NS INS 100000 INS NCDENR Protection of Groundwater PSRG 1 NS 130 2.1 NS 0.28 6 1200 NS NS NS NS NS Sample Name Sample Date BG-lD(1-2) 3/26/2015 0.046 3.1 U 1.3 J 3.1 U 1.9 J 3.1 U 54.9 13.2 131 J 305 U 249 30.5 UJ 348 BG-1D(11) 3/27/2015 0.0063 J 8.9 12 3.9 U 3.9 U 3.9 U 14.2 28.1 195 U 396 U 677 39.6 UJ 540 BG-1 D(21) 3/27/2015 0.01 U 3.9 U 2.1 2.2 J 3.9 U 3.9 U 16 31.6 197 U 400 U 836 40 UJ 567 BG-1 D(31) 3/27/2015 0.01 U 3.5 U 32.8 2.9 J 3.5 U 3.5 U 50.9 85.4 174 U 358 U 3300 35.8 UJ 876 6G-2D(1-2) 3/23/2015 0.064 3.8 U 1.9 U 3.8 U 3.8 U 3.8 U 46.6 10.5 428 363 U 678 36.3 UJ 199 J BG-2D(10-12) 3/24/2015 0.015 3.5 UJ 1.7 U 3 J 3.5 UJ 3.5 U 105 14.2 173 UJ 352 U 1060 35.2 UJ 183 J BG-2D(20-22) 3/24/2015 0.01 U 3.7 UJ 1.9 U 3.7 U 3.7 UJ 3.7 U 20 39.1 185 UJ 367 U 1090 36.7 UJ 949 BG-21D(30-32) 3/24/2015 0.01 U 4 UJ 2 U 4 U 4 UJ 4 U 27 20.1 201 UJ 403 U 1500 40.3 UJ 1240 BG-2S(40-41.5) 3/26/2015 0.01 U 3.1 U 1.5 U 3.1 U 3.1 U 3.1 U 24.8 21.6 155 U 312 U 1480 31.2 UJ 1080 BG-2S(50-51.5) 3/26/2015 0.01 U 3.5 U 1.5 J 3.5 U 7.1 3.5 U 29.4 34.8 532 357 U 2210 35.7 UJ 847 BG-2S(55-60) 3/26/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA BG-2D(60-61.5) 3/24/2015 0.01 U 3.9 UJ 28.4 3.9 U 18.3 3.9 U 125 88 3480 405 U 9400 40.5 UJ 4330 6G-3S(1-2) 5/12/2015 0.031 3.2 U 4.1 4.8 U 3.2 U 6.4 U 60 8.4 158 J 329 U 238 32.9 UJ 343 BG-3S(10-12) 5/12/2015 0.0095 J 3.8 U 4.5 5.7 U 3.8 U 7.6 U 141 21.2 189 U 362 U 647 36.2 UJ 379 U 6G-3S(20-22) 5/12/2015 0.0097 U 3 U 9.8 4.6 U 3 U 6.1 U 55.3 48.5 152 U 308 U 2620 30.8 UJ 2360 BG-3S(27-28) 5/13/2015 0.012 U 4.2 U 2.1 U 8.4 U 3 J 8.4 U 293 38.2 209 U 399 UJ 1300 39.9 UJ 700 BG-3S(30-32) 5/12/2015 0.013 U 4 U 5.7 6 U 4.8 8 U 137 42.3 163 J 389 U 2950 38.9 UJ 1110 BG-3S(33-34) 5/13/2015 0.011 U 3.5 U 1.5 J 7.1 U 3.5 U 7.1 U 6.6 J 39.7 176 U 363 U 1550 36.3 UJ 1730 6G-3S(40-42) 5/13/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA BG-3S(42-43) 5/13/2015 0.011 U 3.4 U 1.6 J 6.9 U 2.8 J 6.9 U 10 25.8 192 353 U 855 35.3 UJ 346 MW-202BR(40.0-42.0) 3/20/2015 0.01 U 0.57 U 1.1 2.31 1 1.5 2.8 U 7.3 30.6 55.2 J+ 278 U 1530 27.8 UJ 1090 MW-202BR(47-49) 3/20/2015 0.01 U 0.64 U 0.67 3.2 U 1.9 3.2 U 3.2 U 9.2 150 J+ 306 U 283 30.6 UJ 332 MW 202BR 60-61.5 3/9/2015 0.01 U 0.69 U 7.1 3.4 U 7.3 3.4 U 24.5 23.7 709 329 U 2490 32.9 UJ 838 General Notes: mg/kg - milligrams per kilogram NA - Not analyzed or not reported by analytical laboratory Std. Units - pH units Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either applicable criteria. bold - indicates exceedance of NCDENR Industrial Health Based PSRG Italic/underline- indicates exceedance of NCDENR Protection of Groundwater PSRG North Carolina Department of Environment and Natural Resources Division of Waste Management Soil Remediation Goals Table (March 2015) - Preliminary Industrial Health Based Soil Remediation Goal (PSRG) and Protection of Groundwater PSRG. "*Note: No PSRG for Total Chromium is currently available, as a surrogate the PSRG for Trivalent Chromium was used for comparison purposes only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 2 of 3 Table 8-2. Total Inorganic Results - Background Soil Analyte Sodium Sulfate pH (field) Total Organic Carbon CAS RN 7440-23-5 14808-79-8 PH TOC Result Unit mg/kg mg/kg Std. Units mg/kg NCDENR Industrial Health PSRG NS NS NS NS NCDENR Protection of Groundwater PSRG NS NS NS NS Sample Name Sample Date BG-lD(1-2) 3/26/2015 311 U 305 U 4.8 J 13400 BG-1D(11) 3/27/2015 390 U 396 U 5.7 J 963 U BG-1 D(21) 3/27/2015 393 U 400 U 5.4 J 967 U BG-1 D(31) 3/27/2015 347 U 358 U 5.6 J 871 U 6G-2D(1-2) 3/23/2015 378 U 363 U 5.5 J 2590 J BG-2D(10-12) 3/24/2015 346 U 352 U 5 J 850 U BG-2D(20-22) 3/24/2015 371 U 367 U 5.1 J 903 U BG-21D(30-32) 3/24/2015 402 U 403 U 5.2 J 965 U BG-2S(40-41.5) 3/26/2015 309 U 312 U 5.6 J 748 U BG-2S(50-51.5) 3/26/2015 352 U 357 U 6.4 J 857 U BG-2S(55-60) 3/26/2015 NA NA NA 768 U BG-2D(60-61.5) 3/24/2015 216 J 405 U 6.4 J 822 J 6G-3S(1-2) 5/12/2015 320 U 329 U 5.4 J 3410 BG-3S(10-12) 5/12/2015 379 U 362 U 4.9 J 4070 6G-3S(20-22) 5/12/2015 304 U 308 U 5 J 1140 J BG-3S(27-28) 5/13/2015 419 U 399 UJ 6.5 J 963 U BG-3S(30-32) 5/12/2015 398 U 389 U 5.1 J 929 U BG-3S(33-34) 5/13/2015 353 U 363 U 5.8 J 877 U 6G-3S(40-42) 5/13/2015 NA NA NA 812 U BG-3S(42-43) 5/13/2015 344 U 353 U 6.4 J 847 U MW-202BR(40.0-42.0) 3/20/2015 56.7 U 278 U 5.2 J 23700 MW-202BR(47-49) 3/20/2015 63.7 U 306 U 6 J 548 J MW 202BR 60-61.5 3/9/2015 47.2 J 329 U 6 J 799 U General Notes: mg/kg - milligrams per kilogram NA - Not analyzed or not reported by analytical laboratory Std. Units - pH units Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either applicable criteria. bold - indicates exceedance of NCDENR Industrial Health Based PSRG Italic/underline- indicates exceedance of NCDENR Protection of Groundwater PSRG North Carolina Department of Environment and Natural Resources Division of Waste Management Soil Remediation Goals Table (March 2015) - Preliminary Industrial Health Based Soil Remediation Goal (PSRG) and Protection of Groundwater PSRG. "*Note: No PSRG for Total Chromium is currently available, as a surrogate the PSRG for Trivalent Chromium was used for comparison purposes only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 3 of 3 Table 8-3. Total Inorganic Results - Background PWR and Bedrock Analyte Aluminum Antimony Arsenic Barium Boron Beryllium Cadmium Chromium Cobalt Copper CAS RN 7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-42-8 7440-41-7 7440-43-9 7440-47-3 7440-48-4 7440-50-8 Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg NCDENR Industrial Health PSRG 100000 94 3 44000 46000 460 200 100000 70 9400 NCDENR Protection of Groundwater PSRG NS 0.9 5.8 580 45 63 3 360000 0.9 700 Sample Name Sample Date MW-200BR(9-9.4) 4/24/2015 10300 5.3 U 4.7 J 49.3 19.4 1.2 0.63 U 16.5 6.9 9.5 MW-200BR(15.8-15.9) 4/25/2015 2070 15.9 U 15.9 U 7.4 J 39.6 U 0.79 U 1.9 U 4 U 15.9 U 15.3 MW-203BR(87.5-87.8) 3/23/2015 10800 2.6 U 2.6 U 81.7 13.2 U 0.14 J 0.32 U 43.7 14.1 37.2 BG-15(41) 3/28/2015 11100 7.3 U 7.2J 43 18.2 U 1.3 0.87 U 3.6 20.7 5 13G-21)(71.6-72) 4/17/2015 5570 5.4 U 5.4 U 17.6 13.5 U 0.3 0.65 U 9.4 6.6 11.2 General Notes: mg/kg - milligrams per kilogram NA - Not analyzed or not reported by analytical laboratory Std. Units - pH units Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either applicable criteria. bold - indicates exceedance of NCDENR Industrial Health Based PSRG Italic/underline- indicates exceedance of NCDENR Protection of Groundwater PSRG North Carolina Department of Environment and Natural Resources Division of Waste Management Soil Remediation Goals Table (March 2015) - Preliminary Industrial Health Based Soil Remediation Goal (PSRG) and Protection of Groundwater PSRG. **Note: No PSRG for Total Chromium is currently available, as a surrogate the PSRG for Trivalent Chromium was used for comparison purposes only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 1 of 3 Table 8-3. Total Inorganic Results - Background PWR and Bedrock Analyte Iron Lead Manganese Mercury Molybdenum Nickel Selenium Strontium Thallium Vanadium CAS RN 7439-89-6 7439-92-1 7439-96-5 7439-97-6 7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg NCDENR Industrial Health PSRG 100000 800 5200 8 1200 4400 1200 100000 2.4 1200 NCDENR Protection of Groundwater PSRG 150 270 65 1 NS 130 2.1 NS 0.28 6 Sample Name Sample Date MW-200BR(9-9.4) 4/24/2015 19400 8 217 0.0087 U 2.6 U 11 5.3 U 2.3 J 5.3 U 24.9 MW-200BR(15.8-15.9) 4/25/2015 4080 15.9 U 71.1 0.019 U 7.9 U 4 U 15.9 U 7.9 U 15.9 U 15.9 U MW-203BR(87.5-87.8) 3/23/2015 16600 2.6 U 301 0.01 U 2.6 U 28.5 2.6 U 9.6 2.6 U 38.3 BG-1S(41) 3/28/2015 9410 17.5 411 0.01 U 3.6 U 7.4 7.3 U 2.2 J 7.3 U 6.8J 13G-21)(71.6-72) 4/17/2015 1 12900 5.4 U 301 0.0082 U 2.7 U 4.7 5.4 U 5.8 5.4 U 24.2 General Notes: mg/kg - milligrams per kilogram NA - Not analyzed or not reported by analytical laboratory Std. Units - pH units Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either applicable criteria. bold - indicates exceedance of NCDENR Industrial Health Based PSRG Italic/underline- indicates exceedance of NCDENR Protection of Groundwater PSRG North Carolina Department of Environment and Natural Resources Division of Waste Management Soil Remediation Goals Table (March 2015) - Preliminary Industrial Health Based Soil Remediation Goal (PSRG) and Protection of Groundwater PSRG. **Note: No PSRG for Total Chromium is currently available, as a surrogate the PSRG for Trivalent Chromium was used for comparison purposes only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 2 of 3 Table 8-3. Total Inorganic Results - Background PWR and Bedrock Analyte Zinc Calcium Chloride Magnesium Nitrate Potassium Sodium Sulfate pH (field) Total Organic Carbon CAS RN 7440-66-6 7440-70-2 16887-00-6 7439-95-4 14797-55-8 7440-09-7 7440-23-5 14808-79-8 PH TOC Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Std. Units mg/kg NCDENR Industrial Health PSRG 70000 NS NS NS 100000 NS NS NS NS NS NCDENR Protection of Groundwater PSRG 1200 NS NS NS NS NS NS NS NS NS Sample Name Sample Date MW-200BR(9-9.4) 4/24/2015 40.6 537 274 U 4240 27.4 UJ 4960 263 U 274 U 5.9 J NA MW-200BR(15.8-15.9) 4/25/2015 10.6 J 1130 211 U 691 21.1 UJ 726 J 793 U 211 U 8.9 J NA MW-203BR(87.5-87.8) 3/23/2015 24.4 2630 263 U 9030 26.3 UJ 4670 263 U 263 U 6.4 J NA BG-15(41) 3/28/2015 29.3 95.5 J 355 U 898 35.5 UJ 737 363 U 355 U 6 J 850 U 13G-21)(71.6-72) 4/17/2015 18.7 1650 265 U 3870 26.5 UJ 777 270 U 265 UJ 8 J NA General Notes: mg/kg - milligrams per kilogram NA - Not analyzed or not reported by analytical laboratory Std. Units - pH units Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either applicable criteria. bold - indicates exceedance of NCDENR Industrial Health Based PSRG Italic/underline- indicates exceedance of NCDENR Protection of Groundwater PSRG North Carolina Department of Environment and Natural Resources Division of Waste Management Soil Remediation Goals Table (March 2015) - Preliminary Industrial Health Based Soil Remediation Goal (PSRG) and Protection of Groundwater PSRG. **Note: No PSRG for Total Chromium is currently available, as a surrogate the PSRG for Trivalent Chromium was used for comparison purposes only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 3 of 3 Table 8-4. Total Inorganic Results - Soil Analyte Aluminum Antimony Arsenic Barium Boron Beryllium Cadmium Chromium Cobalt Copper Iron CAS RN 7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-42-8 7440-41-7 7440-43-9 7440-47-3 7440-48-4 7440-50-8 7439-89-6 Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg NCDENR Industrial Health PSRG 100000 94 3 44000 46000 460 200 100000 70 9400 100000 NCDENR Protection of Groundwater PSRG NS 0.9 5.8 580 45 63 3 360000 0.9 700 150 Sample Name Sample Date AB-1S(20-21.5) 5/9/2015 28200 6 U 61.1 53.6 15.1 U 3.1 0.72 U 25.4 22.7 27.7 40600 AB-1S(40-41.5) 5/9/2015 8080 5.9 U 128 18.6 14.7 U 1.8 0.71 U 15.4 16.7 15.9 26700 AB-1S(45-46.5) 5/9/2015 16700 5.3 U 100 39.3 13.1 U 3.8 0.63 U 17.6 14.3 27.8 33300 AB-2GTB(40-41) 4/13/2015 9320 6.2 U 6.2 U 115 15.5 UJ 0.66 0.74 U 2 4.9J 3 18500 AB-2D(64) 4/13/2015 NA NA NA NA NA NA NA NA NA NA NA AB-2D(75-76.5) 4/10/2015 13900 6.3 U 6.3 U 104 15.8 U 0.85 0.76 U 25.2 10.2 50.2 31000 AB-2D(75) 4/10/2015 NA NA NA NA NA NA NA NA NA NA NA AB-3S(28) 4/17/2015 NA NA NA NA NA NA NA NA NA NA NA AB-3D(40-41.5) 4/14/2015 10600 6.8 U 5.6 J 44.5 16.9 U1 2.4 0.81 U 9.6 17.9 16.6 18400 AB-3D(45-50) 4/14/2015 15200 7.1 U 21.1 55.7 17.9 UJ 1.8 0.86 U 22.2 16.6 18.4 27500 AB-4D(69.5-70.5) 5/27/2015 8040 5.9 U 6.1 40 13.7J 1.3 0.71 U 12.6 3.5J 6.5 11000 AB-5D(49.5-51) 6/10/2015 15600 7.2 U 7.2 U 29.7 18 U 0.22 J 0.86 U 8.3 7.2 U 11.4 15500 AB-5D(57-59) 6/10/2015 13300 7.4 U 7.4 U 97.7 18.5 U 0.59 0.89 U 3.4 4.4J 1.2 J 11800 AB-6GTB(19.5-21) 5/18/2015 6570 6.3 U 6.3 U 20.3 15.7 U 0.31 U 0.75 U 4.6 6.3 U 1.9 9450 AB-6D(27-28.5) 5/15/2015 12800 6.2 U 6.2 U 24.9 15.4 U 0.34 0.74 U 18.4 6.2 U 9.4 25800 AB-6GTB(28) 5/18/2015 NA NA NA NA NA NA NA NA NA NA NA AB-7D(20.0-21.5) 3/31/2015 14700 3.4 U 7.8 51.4 23 1.3 0.41 U 15.4 6.2 14.6 26800 AB-7D(30.0-31.5) 3/31/2015 17500 3 U 26 109 24.8 5.2 0.36 U 25.3 12 33.8 31200 AB-8D(50-52) 5/9/2015 26100 8.3 U 11.5 101 13.2 J 1.7 1 U 34.3 11.9 22.2 24500 AB-8D(59-60.5) 5/9/2015 15100 6.9 U 40.9 137 17.2 U 2.2 0.83 U 31.2 16.3 21.1 28900 AB-9S(25-26.5) 4/25/2015 9530 6.4 UJ 25.9J 125 27.1 1.2 0.77 U1 21.2 120J- 25.8 26900 AB-9S(45-46) 4/25/2015 10900 7.1 U 5.4 J 84.9 25.5 0.83 0.86 U 23.3 13.8 11.1 24100 A13-91)(55-56.5) 4/23/2015 9080 6.9 U 9.6 133 21 2.8 0.83 U 9.7 5.2J 7.8 19500 GWA-1S(20-21.5) 3/26/2015 18100 2.9 U 56.7 84.9 14.6 U 5.3 0.35 U 33.3 12.7 28.9 34400 GWA-1S(26-27.5) 3/26/2015 20500 3.3 U 52.7 137 16.7 U 5.8 0.4 U 39.2 21.5 18.6 37900 GWA-21)(34-35) 4/21/2015 4130 7.4 U 36.4 46.5 18.5 U 0.96 0.89 U 1.2 J 4.1 J 1.6 J 8450 GWA-21)(41-42.5) 4/21/2015 4620 7 U 26.3 77.2 17.5 U 0.98 0.84 U 1.3 J 20.7 1.8 UJ 10700 GWA-21)(49-50.5) 4/21/2015 5230 7 U 40.8 73.6 17.5 U 4 0.84 U 4.5 6.2J 7.4 14800 GWA-31)(10) 5/5/2015 NA NA NA NA NA NA NA NA NA NA NA GWA-31)(34-35.5) 5/4/2015 7610 7.7 U 7.7 U 108 19.3 U 0.97 0.93 U 1.11 7.7 U 2 9110 GWA-3S(37-38) 5/6/2015 6010 5.6 U 5.6 U 50.4 13.9 U 0.65 0.67 U 1.4 U 5.6 U 5.3 5730 GWA 4S 45-47 3/5/2015 4830 2.8 U 2.8 U 79.5 5 0.52 0.33 U 11+ 2.2 J 2.8 7760 GWA-5S(25-26.5) 3/18/2015 9390 3.4 U 2.4 J 121 17.1 U 0.42 0.41 U 1.7 UJ 3.31 2.1 4590 GWA-5GTB(28-35) 3/19/2015 NA NA NA NA NA NA NA NA NA NA NA GWA-5S (30-31.5) 3/18/2015 3610 2.9 U 1.7 J 55.8 4 0.5 0.34 U 0.9 2.9 U 8 4730 GWA-6S (29-30) 3/12/2015 6320 3 U 8.5 69.6 14.2 0.93 0.36 U 13.8 9.8 10.4 16400 GWA-6S (37-38.5) 3/12/2015 8310 3.2 U 3.1 J 115 20.5 2.4 0.221 5.1 3.8 2.1 27700 GWA 7S 30-31.5 3/10/2015 16000 3.5 U 3.4 J 488 17 J 2.7 0.42 U 36.8 10.6 44.6 26100 GWA 7S 35-36.5 3/10/2015 4830 3.3 UJ 3.3 UJ 101 6.2 0.97 0.4 U 7.8 6.9J+ 7.5 6470 GWA 7S 42.5-43.5 3/10/2015 NA NA NA NA NA NA NA NA NA NA NA GWA-81)(20.0-21.5) 4/7/2015 15500 7.6 U 7.6 U 82.9 19 U 0.74 0.91 U 2.2 7.6 U 1.4 J 7910 GWA-8D(30.8-31.5) 4/7/2015 12200 7.3 U 7.3 U 82.2 18.1 U 0.92 0.87 U 1.5 J 7.3 U 1.7 J 9150 GWA-81)(45.0-46.5) 4/8/2015 11500 5.9 U 5.9 U 28.6 14.7 U 0.35 0.71 U 34.2 11.5 45.5 14600 GWA-9GTB(40-41.5) 5/27/2015 274001- 6.1 UJ 10.2J- 620J- 30.5 J- 5.1 J- 0.74 U 54.6 J- 15.9J- 4.5 J- 44100J- GWA-9GTB(50-51.5) 5/27/2015 18900 7.6 U 42.9 295 23.4 4.6 0.92 U 25.9 21.9 14.9 32900 GWA-9S(50-52) 5/28/2015 12300 7.2 UJ 50.2J 105 72.1 U 6.1 0.87 U 27.5 28.7J- 44 44400 GWA-9GTB(56-57.5) 5/27/2015 1 NA NA NA NA NA NA NA NA NA NA NA GWA-101)(2-3) 4/13/2015 1 11800 7.6 U 62.1 39 19.1 U1 1.9 0.92 U 18.6 26.5 21.4 32600 Belews Creek Steam Station Page 1 of 6 Table 8-4. Total Inorganic Results - Soil Analyte Aluminum Antimony Arsenic Barium Boron Beryllium Cadmium Chromium Cobalt Copper Iron CAS RN 7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-42-8 7440-41-7 7440-43-9 7440-47-3 7440-48-4 7440-50-8 7439-89-6 Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg NCDENR Industrial Health PSRG 100000 94 3 44000 46000 460 200 100000 70 9400 100000 NCDENR Protection of Groundwater PSRG NS 0.9 5.8 580 45 63 3 360000 0.9 700 150 Sample Name Sample Date GWA-10D(39-40.3) 4/13/2015 11500 5.7 U 42 88.2 14.2 U1 4.3 0.68 U 13.6 12.8 15.6 26300 GWA-11D(29-30.5) 4/8/2015 16900 7.2 U 26.9 72.4 18.1 U 5.1 0.87 U 12.2 14.5 15.4 24100 GWA-111)(35-36.5) 4/8/2015 21000 6.2 U 33.1 95.9 15.4 U 8.3 0.74 U 21.4 8.5 27 33000 GWA-111)(42) 4/8/2015 NA NA NA NA NA NA NA NA NA NA NA GWA-11D(55-55.4) 4/8/2015 29900 7.3 U 52.2 149 18.3 U 4.5 0.88 U 22.8 9.3 16 45800 GWA-121)(10-12) 4/15/2015 4320 6.2 U 6.2 U 26.6 15.4 U 0.31 U 0.74 U 1.5 UJ 6.5 0.96 J 912 GWA-121)(15-17) 4/15/2015 14300 5.6 U 5.6 U 98.6 13.9 U 0.39 0.67 U 1.4 UJ 2.9J 1.8 7740 GWA-12D(20-22) 4/15/2015 11900 5.8 U 5.8 U 90.7 14.5 U 0.43 0.69 U 0.971 3.5J 9.1 7870 GWA-12D(25-27) 4/15/2015 12200 7.9 U 7.9 U 82.5 19.6 U 0.59 0.94 U 4.7 4.5 J 11.3 9790 MW-200BR(0-1.5) 4/24/2015 9390 6.8 U 44.1 35.5 26.1 1.3 0.81 U 39.5 4.3J 10.4 25100 MW-200BR(5-6.5) 4/24/2015 8690 7 U 23.9 51 16.5 J 0.95 0.84 U 14.6 7 UJ 15 14300 MW-203BR(20-21.5) 3/18/2015 6090 3.4 U 3.4 U 62.1 10.61 0.38 0.41 U 1.8 7.9 6.8 9350 MW-203BR(30.0-31.5) 3/19/2015 11400 3.3 U 3.3 U 171 12.7 0.47 0.39 U 3.4 9.5 6.4 15900 MW-203BR(40.0-41.5) 3/19/2015 6000 3 U 3 U 124 9 1.1 0.36 U 3.9 5.5 5.5 10600 SB-3(4-5.5) 4/25/2015 13800 5.9 U 18.7 52.6 30.4 1.2 0.71 U 19.5 161 30.8 30100 SB-3(12-13.5) 4/25/2015 3730 6.6 U 6J 22.9 13.3 J 0.54 0.8 U 12.6 10.3 5.9 7790 General Notes: mg/kg - milligrams per kilogram NA - Not analyzed or not reported by analytical laboratory Std. Units - pH units Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either applicable criteria. bold - indicates exceedance of NCDENR Industrial Health Based PSRG Italic/underline- indicates exceedance of NCDENR Protection of Groundwater PSRG North Carolina Department of Environment and Natural Resources Division of Waste Management Soil Remediation Goals Table (March 2015) - Preliminary Industrial Health Based Soil Remediation Goal (PSRG) and Protection of Groundwater PSRG. ""Note: No PSRG for Total Chromium is currently available, as a surrogate the PSRG for Trivalent Chromium was used for comparison purposes only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 2 of 6 Table 8-4. Total Inorganic Results - Soil Analyte Lead Manganese Mercury Molybdenum Nickel Selenium Strontium Thallium Vanadium Zinc Calcium CAS RN 7439-92-1 7439-96-5 7439-97-6 7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 7440-66-6 7440-70-2 Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg NCDENR Industrial Health PSRG 800 5200 8 1200 4400 1200 100000 2.4 1200 70000 NS NCDENR Protection of Groundwater PSRG 270 65 1 NS 130 2.1 NS 0.28 6 1200 NS Sample Name Sample Date AB-1S(20-21.5) 5/9/2015 19.6 583 0.0064 J 3 U 20.9 6 U 3 U 6 U 45 46.8 151 U AB-1S(40-41.5) 5/9/2015 4 J 201 0.0047 J 1.9 J 16.5 5.9 U 2.9 U 5.9 U 22.6 45.5 120 J+ AB-1S(45-46.5) 5/9/2015 3.9 J 267 0.0085 U 2.6 U 36 5.3 U 2 J 5.3 U 32.1 97.5 149 J+ AB-2GTB(40-41) 4/13/2015 9.9 488 0.01 UJ 3.1 UJ 1.5 UJ 6.2 U 2.2 J 6.2 U 42.5 26.4 106 J+ AB-2D(64) 4/13/2015 NA NA NA NA NA NA NA NA NA NA NA AB-2D(75-76.5) 4/10/2015 14.4 494 0.01 UJ 3.2 U 15.6 6.3 U 10.2 6.3 U 101 55.5 972 AB-2D(75) 4/10/2015 NA NA NA NA NA NA NA NA NA NA NA AB-3S(28) 4/17/2015 NA NA NA NA NA NA NA NA NA NA NA AB-3D(40-41.5) 4/14/2015 14.7 306 0.011 UJ 3.4 UJ 13.6 6.8 U 4.7 6.8 U 13.3 60 289 J+ AB-3D(45-50) 4/14/2015 18 349 0.009 J+ 3.6 UJ 11.2 7.1 U 2.5 J 7.1 U 46.5 44.3 179 UJ AB-4D(69.5-70.5) 5/27/2015 7.3 221 0.012 3 U 3.9 5.9 U 19.4 5.9 U 32 12.1 651 AB-5D(49.5-51) 6/10/2015 42.3 60.1 0.016 3.6 U 2.7 7.2 U 3.6 U 7.2 U 35.7 12.6 180 U AB-5D(57-59) 6/10/2015 5.9 J 202 0.013 U 3.7 U 3.4 3.8J 5.6 7.4 U 27.4 28.8 352 AB-6GTB(19.5-21) 5/18/2015 4.1 J 82 0.018 3.1 U 1.6 U 4.7 U 3.1 U 6.3 U 12.4 3.8 J 203 AB-6D(27-28.5) 5/15/2015 8.7 63.1 0.062 3.1 U 0.97 J 4.6 U 3.1 U 6.2 U 53.2 6.9 113 J AB-6GTB(28) 5/18/2015 NA NA NA NA NA NA NA NA NA NA NA AB-7D(20.0-21.5) 3/31/2015 32.7 110 0.039 3.4 U 6.6 3.4 U 21 3.4 U 41.8 38.6 327 AB-7D(30.0-31.5) 3/31/2015 16.6 79.2 0.01 U 3 U 28.1 6 U 3 U 3 U 39.2 163 113 J AB-8D(50-52) 5/9/2015 16.1 198 0.02 4.2 U 13.8 8.3 U 29.5 8.3 U 107 38.3 1160 AB-8D(59-60.5) 5/9/2015 5.2 J 215 0.011 U 3.4 U 25.7 11.3 11.9 6.9 U 44.4 45.9 1230 AB-9S(25-26.5) 4/25/2015 26.91- 1390 0.01 U 3.2 U 21.5 5.8J- 3.2 U 6.4 U 117J 38.5 159 U AB-9S(45-46) 4/25/2015 14.9 392 0.019 3.6 U 5.1 7.1 U 3.6 U 7.1 U 73.2 26.7 179 U AB-9D(55-56.5) 4/23/2015 27.9 754 0.011 U 3.4 U 5.5 6.9 U 23.8 6.9 U 42 83 2490 GWA-1S(20-21.5) 3/26/2015 9.2 358 0.01 U 2.9 U 40.7 2.9 U 2.9 U 2.9 U 44.3 69.2 146 U GWA-1S(26-27.5) 3/26/2015 10.7 506 0.01 U 3.3 U 43.1 3.3 U 2.5 J 3.3 U 70.4 83 106 J GWA-21)(34-35) 4/21/2015 11.2 208 0.011 U 3.7 UJ 2.1 7.4 U 3.7 UJ 7.4 U 8 25.1 185 UJ GWA-2D(41-42.5) 4/21/2015 45.8 655 0.011 U 2.7 J 11 7 U 3.5 UJ 7 U 10.5 28.5 175 UJ GWA-21)(49-50.5) 4/21/2015 15.3 401 0.011 U 2.1 J 6.8 7 U 5.8 7 U 12.4 46.4 473 GWA-3D(10) 5/5/2015 NA NA NA NA NA NA NA NA NA NA NA GWA-3D(34-35.5) 5/4/2015 6.4 J 460 0.012 U 3.9 UJ 1.11 7.7 U 11.4 7.7 U 18.4 29.6 1050 GWA-3S(37-38) 5/6/2015 3.7 J 201 0.0093 U 2.8 U 1.4 U 5.6 U 5.5 5.6 U 5.1 J 16.9 591 GWA 4S 45-47 3/5/2015 15.6 383 0.01 U 0.56 U 1.1 2.8 U 4.3 2.8 U 9.4 20.3 599 GWA-5S(25-26.5) 3/18/2015 11.1 450 0.01 U 0.68 UJ 1.3 2.6J 3.8 3.4 U 7.9 18.8 466 GWA-5GTB(28-35) 3/19/2015 NA NA NA NA NA NA NA NA NA NA NA GWA-5S (30-31.5) 3/18/2015 4.7 206 0.01 U 0.57 UJ 0.27 J 2.9 U 6.2 2.9 U 5.6 14.3 445 GWA-6S (29-30) 3/12/2015 7.6 219 0.01 U 0.61 U 10.1 3 U 3 U 3 U 27.6 25.2 79 GWA-6S (37-38.5) 3/12/2015 7.5 121 0.01 U 3.2 U 4.4 3.2 U 6.7 3.2 U 45.9 86 348 GWA 7S 30-31.5 3/10/2015 11.3 226 0.01 UJ 3.5 U 19.5 5.6 9.6 3.5 U 75.5 56.9 381 GWA 7S 35-36.5 3/10/2015 17.5 J+ 206 0.01 U 0.67 U 11.8 4 J- 2.4 3.3 U 20.7J+ 21.4 114 GWA 7S 42.5-43.5 3/10/2015 NA NA NA NA NA NA NA NA NA NA NA GWA-81)(20.0-21.5) 4/7/2015 8.3 103 0.01 U 3.8 U 1.9 U 7.6 U 6.2 7.6 U 11.1 35 195 GWA-8D(30.8-31.5) 4/7/2015 4.3 J 103 0.01 U 3.6 U 1.8 U 7.3 U 9.8 7.3 U 14.4 38.6 431 GWA-8D(45.0-46.5) 4/8/2015 5.9 U 243 0.01 U 2.9 U 15.5 5.9 U 15.9 5.9 U 24.9 19.2 4460 GWA-9GTB(40-41.5) 5/27/2015 15.4 640J 0.011 U 3.1 UJ 14.5 J- 3.6 J- 3.2 J- 6.1 U 95.7J- 146J- 396J- GWA-9GTB(50-51.5) 5/27/2015 25.8 700 0.012 U 3.8 U 16.2 7.6 U 3.2 J 7.6 U 76 100 279 GWA-9S(50-52) 5/28/2015 22.3 J- 682 0.012 U 1.3 26.9 7.2 UJ 2.2 7.2 U 53J- 58.4 289 GWA-9GTB(56-57.5) 5/27/2015 NA NA NA NA NA NA NA NA NA NA NA GWA-101)(2-3) 4/13/2015 15 689 0.012 UJ 21 20.8 7.6 U 3.8 UJ 7.6 U 29.2 32.7 191 UJ Belews Creek Steam Station Page 3 of 6 Table 8-4. Total Inorganic Results - Soil Analyte Lead Manganese Mercury Molybdenum Nickel Selenium Strontium Thallium Vanadium Zinc Calcium CAS RN 7439-92-1 7439-96-5 7439-97-6 7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 7440-66-6 7440-70-2 Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg NCDENR Industrial Health PSRG 800 5200 8 1200 4400 1200 100000 2.4 1200 70000 NS NCDENR Protection of Groundwater PSRG 270 65 1 NS 130 2.1 NS 0.28 6 1200 NS Sample Name Sample Date GWA-10D(39-40.3) 4/13/2015 10.9 474 0.0094 UJ 2.8 UJ 24.7 5.7 U 7.4 5.7 U 22.4 74.1 555 GWA-11D(29-30.5) 4/8/2015 15 385 0.01 U 3.6 U 19.9 7.2 U 3.1 J 7.2 U 20.3 64.2 1211 GWA-11D(35-36.5) 4/8/2015 15 345 0.01 U 3.1 U 22.7 6.2 U 5.6 6.2 U 35.6 99.7 317 GWA-11D(42) 4/8/2015 NA NA NA NA NA NA NA NA NA NA NA GWA-11D(55-55.4) 4/8/2015 14 528 0.01 U 3.7 U 14.5 7.3 U 21.5 7.3 U 87.5 128 1340 GWA-12D(10-12) 4/15/2015 13.2 296 0.0097 UJ 3.1 U 1.5 UJ 6.2 U 3.1 UJ 6.2 UJ 6.2 U 8.5 154 UJ GWA-12D(15-17) 4/15/2015 19.9 187 0.0092 UJ 2.8 U 1.4 UJ 5.6 U 2.8 UJ 5.6 UJ 5.6 U 64.7 139 UJ GWA-12D(20-22) 4/15/2015 14.7 135 0,009 UJ 2.9 U 0.79 J 5.8 U 2.9 UJ 5.8 UJ 8.2 43.6 145 UJ GWA-12D(25-27) 4/15/2015 12.8 247 0,013 UJ 3.9 U 1.11 7.9 U 3.9 UJ 7.9 UJ 10.6 43.6 196 UJ MW-200BR(0-1.5) 4/24/2015 14.9 68.2 0.06 3.4 U 4.7 6.8 U 3.4 U 6.8 U 25.2 9.4 169 U MW-200BR(5-6.5) 4/24/2015 14.9 188 0.025 3.5 U 5.9 7 U 2.2 J 7 U 17.8 15.8 239 MW-203BR(20-21.5) 3/18/2015 6.1 281 0.0055 J 0.69 UJ 1.8 3.4 U 0.86 3.4 U 32 17.4 66.2 J+ MW-203BR(30.0-31.5) 3/19/2015 6.4 550 0.01 U 0.66 U 3.6 3.3 U 3 3.3 UJ 44 45.3 441 MW-203BR(40.0-41.5) 3/19/2015 6.9 281 0.01 U 0.6 U 3 3 U 9.3 3 U1 25.2 34.3 1280 SB-3(4-5.5) 4/25/2015 20 1070 0.0093 3 U 14.5 5.9 U 3 U 5.9 U 37.2 51.5 233 SB-3(12-13.5) 4/25/2015 4 J 84.6 0.01 U 3.3 U 5.9 6.6 U 2.4 J 6.6 U 12.1 14.9 340 General Notes: mg/kg - milligrams per kilogram NA - Not analyzed or not reported by analytical laboratory Std. Units - pH units Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either applicable criteria. bold - indicates exceedance of NCDENR Industrial Health Based PSRG Italic/underline- indicates exceedance of NCDENR Protection of Groundwater PSRG North Carolina Department of Environment and Natural Resources Division of Waste Management Soil Remediation Goals Table (March 2015) - Preliminary Industrial Health Based Soil Remediation Goal (PSRG) and Protection of Groundwater PSRG. ""Note: No PSRG for Total Chromium is currently available, as a surrogate the PSRG for Trivalent Chromium was used for comparison purposes only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 4 of 6 Table 8-4. Total Inorganic Results - Soil Analyte Chloride Magnesium Nitrate Potassium Sodium Sulfate pH (field) Total Organic Carbon CAS RN 16887-00-6 7439-95-4 14797-55-8 7440-09-7 7440-23-5 14808-79-8 PH TOC Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Std. Units mg/kg NCDENR Industrial Health PSRG NS NS 100000 NS NS NS NS NS NCDENR Protection of Groundwater PSRG NS NS NS NS NS NS NS NS Sample Name Sample Date AB-1S(20-21.5) 5/9/2015 290 U 3000 29 UJ 2540 301 U 290 U 5.7 J 589 J AB-1S(40-41.5) 5/9/2015 278 U 1890 27.8 UJ 1930 294 U 278 U 6 J 672 U AB-1S(45-46.5) 5/9/2015 269 U 5220 26.9 UJ 5160 263 U 269 U 5.9 J 663 U AB-2GTB(40-41) 4/13/2015 303 U 2740 30.3 UJ 2780 310 UJ 303 U 5.1 J 735 U AB-2D(64) 4/13/2015 NA NA NA NA NA NA NA 661 J AB-2D(75-76.5) 4/10/2015 309 U 4080 30.9 UJ 841 316 U 309 U 6.1 J 752 U AB-2D(75) 4/10/2015 NA NA NA NA NA NA NA 697 J AB-3S(28) 4/17/2015 NA NA NA NA NA NA NA 716 J AB-3D(40-41.5) 4/14/2015 173 J 2430 33.8 UJ 3140 338 UJ 338 U 6.5 J 822 U AB-3D(45-50) 4/14/2015 353 U 2430 35.3 UJ 2720 357 UJ 353 U 5.4 J 769 J AB-4D(69.5-70.5) 5/27/2015 299 UJ 711 29.9 UJ 485 295 U 299 UJ 6.4 J 1990 AB-5D(49.5-51) 6/10/2015 358 U 1110 35.8 UJ 294 J 359 U 358 U 5.1 J 1080 AB-5D(57-59) 6/10/2015 383 U 2250 38.3 UJ 694 370 U 383 U 5.3 J 920 U AB-6GTB(19.5-21) 5/18/2015 305 U 154 J 30.5 UJ 176 J 313 U 305 U 5.4 J 3630 AB-6D(27-28.5) 5/15/2015 316 U 285 31.6 UJ 264 J 308 U 316 U 5.2 J 2160 AB-6GTB(28) 5/18/2015 NA NA NA NA NA NA NA 2110 AB-7D(20.0-21.5) 3/31/2015 330 U 2400 33 U 2340 343 U 330 U 5.8 J 1340 AB-7D(30.0-31.5) 3/31/2015 293 U 6410 29.3 U 5880 298 U 293 U 6.3 J 776 AB-8D(50-52) 5/9/2015 402 U 3040 40.2 UJ 2320 416 U 402 U 5.9 J 10500 AB-8D(59-60.5) 5/9/2015 327 U 6190 32.7 UJ 8650 344 U 327 U 6.5 J 1170 AB-9S(25-26.5) 4/25/2015 308 U 3230 30.8 UJ 3960 319 U 308 U 5.2 J 746 U AB-9S(45-46) 4/25/2015 344 U 2610 34.4 UJ 2390 357 U 344 U 5.4 J 6491 AB-91)(55-56.5) 4/23/2015 344 U 3660 34.4 U1 996 345 U 344 U 5.4 J 889 GWA-1S(20-21.5) 3/26/2015 283 U 5910 28.3 UJ 4860 168 J 283 U 5.2 J 680 U GWA-1S(26-27.5) 3/26/2015 317 U 7820 31.7 UJ 4890 209 J 317 U 4.8 J 5371 GWA-21)(34-35) 4/21/2015 358 U 792 35.8 UJ 438 371 U1 358 U1 5.6 J 857 U GWA-21)(41-42.5) 4/21/2015 346 U 965 34.6 UJ 673 351 U1 346 U1 5.9 J 845 U GWA-21)(49-50.5) 4/21/2015 348 U 1600 34.8 UJ 1530 350 U1 348 U1 6.4 J 841 U GWA-31)(10) 5/5/2015 NA NA NA NA NA NA NA 663 U GWA-31)(34-35.5) 5/4/2015 366 U 2080 36.6 UJ 1440 386 U1 366 U 71 893 U GWA-3S(37-38) 5/6/2015 281 U 1050 28.1 U1 1030 278 U 281 U 6.4 J 671 U GWA 4S 45-47 3/5/2015 284 U 1320 28.4 UJ 1060 49.2 J 284 U 6.4 J 685 U GWA-5S(25-26.5) 3/18/2015 332 U 1050 33.2 UJ 274 68.2 U 332 U 4.2 J 799 U GWA-5GTB(28-35) 3/19/2015 NA NA NA NA NA NA NA 731 UJ GWA-5S (30-31.5) 3/18/2015 281 U 796 28.1 UJ 906 61.2 281 U 6.2 J 686 U GWA-6S (29-30) 3/12/2015 292 U 2230 29.2 UJ 2810 43.5 J 292 U 5.9 J 850 GWA-6S (37-38.5) 3/12/2015 321 U 4150 32.1 UJ 5070 322 U 321 U 5.5 J 770 U GWA 7S 30-31.5 3/10/2015 362 U 9390 36.2 UJ 8060 348 UJ 362 U 5.4 J 872 U GWA 7S 35-36.5 3/10/2015 337 U 1060 33.7 UJ 1110 66.5 UJ 337 U 5.8 J 816 U GWA 7S 42.5-43.5 3/10/2015 NA NA NA NA NA NA NA 6201 GWA-81)(20.0-21.5) 4/7/2015 387 U 2160 38.7 UJ 3070 381 U 387 U 5.1 J 933 U GWA-8D(30.8-31.5) 4/7/2015 349 U 2370 34.9 UJ 3640 363 U 349 U 6.1 J 854 U GWA-81)(45.0-46.5) 4/8/2015 287 U 3710 28.7 UJ 565 228 J 287 U 6.8 J 693 U GWA-9GTB(40-41.5) 5/27/2015 325 UJ 10800 J- 32.5 UJ 14200 J- 306 U 325 UJ 5.9 J 778 U GWA-9GTB(50-51.5) 5/27/2015 370 UJ 6170 37 UJ 5320 381 U 370 UJ 5.7 J 495 J GWA-9S(50-52) 5/28/2015 369 U 4920 36.9 UJ 3780 72.1 U 369 U 5.7 J 1350 GWA-9GTB(56-57.5) 5/27/2015 NA NA NA NA NA NA NA 424 J GWA-10D(2-3) 4/13/2015 364 U1 2670 36.4 UJ 3500 382 U1 364 U 5.2 J 896 U Belews Creek Steam Station Page 5 of 6 Table 8-4. Total Inorganic Results - Soil Analyte Chloride Magnesium Nitrate Potassium Sodium Sulfate pH (field) Total Organic Carbon CAS RN 16887-00-6 7439-95-4 14797-55-8 7440-09-7 7440-23-5 14808-79-8 PH TOC Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Std. Units mg/kg NCDENR Industrial Health PSRG NS NS 100000 NS NS NS NS NS NCDENR Protection of Groundwater PSRG NS NS NS NS NS NS NS NS Sample Name Sample Date GWA-101)(39-40.3) 4/13/2015 279 U 4430 27.9 UJ 3290 283 UJ 279 U 6.3 J 458 J GWA-11D(29-30.5) 4/8/2015 362 U 2660 3.3 UJ 3240 361 U 362 U 5.1 J 873 U GWA-111)(35-36.5) 4/8/2015 292 U 4910 29.2 UJ 4310 308 U 292 U 5.2 J 704 U GWA-11D(42) 4/8/2015 NA NA NA NA NA NA 5.6 J 581 J GWA-11D(55-55.4) 4/8/2015 354 U 10100 35.4 UJ 12200 367 U 354 U 6.4 J 1250 GWA-121)(10-12) 4/15/2015 315 U 287 31.5 UJ 313 308 UJ 315 U 5.6 J 740 U GWA-12D(15-17) 4/15/2015 281 U 5180 28.1 UJ 4230 279 UJ 281 U 5.4 J 674 U GWA-12D(20-22) 4/15/2015 285 U 3230 28.5 UJ 2830 289 U1 285 U 5.3 J 673 U GWA-12D(25-27) 4/15/2015 402 U 3070 40.2 UJ 3310 393 UJ 402 U NA 500 J MW-200BR(0-1.5) 4/24/2015 332 U 764 33.2 UJ 575 338 U 332 U 4.9 J 13200 MW-200BR(5-6.5) 4/24/2015 359 U 1260 35.9 UJ 942 351 U 359 U 5.2 J 2190 MW-203BR(20-21.5) 3/18/2015 331 U 1930 33.1 UJ 1740 68.6 U 331 U 4.2 J 806 U MW-203BR(30.0-31.5) 3/19/2015 325 UJ 5510 32.5 U1 6020 65.6 U 325 U 5.2 J 792 U MW-203BR(40.0-41.5) 3/19/2015 307 U 2740 30.7 UJ 605 59.7 U 307 U 5.9 J 745 U SB-3(4-5.5) 4/25/2015 285 U 2410 28.5 U1 2380 295 U 285 U 5.9 J 1890 J SB-3(12-13.5) 4/25/2015 172 J 1110 31.9 UJ 875 332 U 319 U 6.1 J 1420 General Notes: mg/kg - milligrams per kilogram NA - Not analyzed or not reported by analytical laboratory Std. Units - pH units Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either applicable criteria. bold - indicates exceedance of NCDENR Industrial Health Based PSRG Italic/underline- indicates exceedance of NCDENR Protection of Groundwater PSRG North Carolina Department of Environment and Natural Resources Division of Waste Management Soil Remediation Goals Table (March 2015) - Preliminary Industrial Health Based Soil Remediation Goal (PSRG) and Protection of Groundwater PSRG. ""Note: No PSRG for Total Chromium is currently available, as a surrogate the PSRG for Trivalent Chromium was used for comparison purposes only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 6 of 6 Table 8-5. Total Inorganic Results - PWR and Bedrock Analyte Aluminum Antimony Arsenic Barium Boron Beryllium Cadmium Chromium Cobalt Copper Iron CAS RN 7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-42-8 7440-41-7 7440-43-9 7440-47-3 7440-48-4 7440-50-8 7439-89-6 Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg NCDENR Industrial Health PSRG 100000 94 3 44000 46000 460 200 100000 70 9400 100000 NCDENR Protection of Groundwater PSRG NS 0.9 5.8 580 45 63 3 360000 0.9 700 150 Sample Name Sample Date AB-4D(75-79) 5/27/2015 NA NA NA NA NA NA NA NA NA NA NA GWA-1S(34-35.5) 3/26/2015 17000 2.7 U 76.7 70.4 13.7 U 4.8 0.33 U 21.9 16.5 23 32400 GWA-31)(44) 5/5/2015 9030 5.7 U 5.7 U 88.3 9.5 J 0.74 0.69 U 27.7 3.6J 4.7 9740 GWA-5S (35-36.5) 3/18/2015 4470 3.4 U 3.8 63.9 5.3 0.66 0.41 U 4.5 2.8J 7 5870 GWA-6S (68.5-70) 3/12/2015 16900 4.2 U 6.3 284 21 U 4.4 0.49 J 45.7 25.1 5.4 49500 GWA 7S 60-60.2 3/10/2015 NA NA NA NA NA NA NA NA NA NA NA GWA 7S 60.2-60.4 3/10/2015 7230 2.7 U 2.7 U 72.4 11 0.88 0.33 U 16.2 9.3 16.5 13400 MW-200BR(9-9.4) 4/24/2015 10300 5.3 U 4.7 J 49.3 19.4 1.2 0.63 U 16.5 6.9 9.5 19400 MW-200BR(9-9.4) 4/28/2015 NA NA NA NA NA NA NA NA NA NA NA MW-200BR(15.8-15.9) 4/25/2015 2070 15.9 U 15.9 U 7.4 J 39.6 U 0.79 U 1.9 U 4 U 15.9 U 15.3 4080 MW-203BR(87.5-87.8) 3/23/2015 10800 2.6 U 2.6 U 81.7 13.2 U 0.14J 0.32 U 43.7 14.1 37.2 16600 General Notes: mg/kg - milligrams per kilogram NA - Not analyzed or not reported by analytical laboratory Std. Units - pH units Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either applicable criteria. bold - indicates exceedance of NCDENR Industrial Health Based PSRG Italic/underline- indicates exceedance of NCDENR Protection of Groundwater PSRG North Carolina Department of Environment and Natural Resources Division of Waste Management Soil Remediation Goals Table (March 2015) - Preliminary Industrial Health Based Soil Remediation Goal (PSRG) and Protection of Groundwater PSRG. *'Note: No PSRG for Total Chromium is currently available, as a surrogate the PSRG for Trivalent Chromium was used for comparison purposes only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 1 of 3 Table 8-5. Total Inorganic Results - PWR and Bedrock Analyte Lead Manganese Mercury Molybdenum Nickel Selenium Strontium Thallium Vanadium Zinc Calcium CAS RN 7439-92-1 7439-96-5 7439-97-6 7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 7440-66-6 7440-70-2 Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg NCDENR Industrial Health PSRG 800 5200 8 1200 4400 1200 100000 2.4 1200 70000 NS NCDENR Protection of Groundwater PSRG 270 65 1 NS 130 2.1 NS 0.28 6 1200 NS Sample Name Sample Date AB-4D(75-79) 5/27/2015 NA NA NA NA NA NA NA NA NA NA NA GWA-1S(34-35.5) 3/26/2015 10.7 257 0.01 U 2.7 U 41.9 2.7 U 6.1 2.7 U 34.7 53.7 452 GWA-31)(44) 5/5/2015 4.9 J 390 0.0089 U 2.9 UJ 1.9 5.7 U 7.4 5.7 U 17.4 28.3 872 GWA-5S (35-36.5) 3/18/2015 7.2 297 0.01 U 0.62 J 1.5 3.2 J 10.6 3.4 U 7.6 18.7 849 GWA-6S (68.5-70) 3/12/2015 19.2 697 0.01 U 0.84 U 26.9 2.9J 64.1 4.2 U 156 120 8360 GWA 7S 60-60.2 3/10/2015 NA NA NA NA NA NA NA NA NA NA NA GWA 7S 60.2-60.4 3/10/2015 5 59.9 0.01 U 0.55 U 21.4 2.7 U 6.7 2.7 U 26 22.7 780 MW-200BR(9-9.4) 4/24/2015 8 217 0.0087 U 2.6 U 11 5.3 U 2.3 J 5.3 U 24.9 40.6 537 MW-200BR(9-9.4) 4/28/2015 NA NA NA NA NA NA NA NA NA NA NA MW-200BR(15.8-15.9) 4/25/2015 15.9 U 71.1 0.019 U 7.9 U 4 U 15.9 U 7.9 U 15.9 U 15.9 U 10.61 1130 MW-203BR(87.5-87.8) 3/23/2015 2.6 U 301 0.01 U 2.6 U 28.5 2.6 U 9.6 2.6 U 38.3 24.4 2630 General Notes: mg/kg - milligrams per kilogram NA - Not analyzed or not reported by analytical laboratory Std. Units - pH units Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either applicable criteria. bold - indicates exceedance of NCDENR Industrial Health Based PSRG Italic/underline- indicates exceedance of NCDENR Protection of Groundwater PSRG North Carolina Department of Environment and Natural Resources Division of Waste Management Soil Remediation Goals Table (March 2015) - Preliminary Industrial Health Based Soil Remediation Goal (PSRG) and Protection of Groundwater PSRG. *'Note: No PSRG for Total Chromium is currently available, as a surrogate the PSRG for Trivalent Chromium was used for comparison purposes only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 2 of 3 Table 8-5. Total Inorganic Results - PWR and Bedrock Analyte Chloride Magnesium Nitrate Potassium Sodium Sulfate pH (field) Total Organic Carbon CAS RN 16887-00-6 7439-95-4 14797-55-8 7440-09-7 7440-23-5 14808-79-8 PH TOC Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Std. Units mg/kg NCDENR Industrial Health PSRG NS NS 100000 NS NS NS NS NS NCDENR Protection of Groundwater PSRG NS NS NS NS NS NS NS NS Sample Name Sample Date AB-41)(75-79) 5/27/2015 NA NA NA NA NA NA NA 553 J GWA-1S(34-35.5) 3/26/2015 266 U 6340 26.6 UJ 5420 204 J 266 U 5.4 J 365 J GWA-31)(44) 5/5/2015 273 U 2380 27.3 UJ 2480 287 UJ 273 U 7.1 J 655 UJ GWA-5S (35-36.5) 3/18/2015 334 U 1280 33.4 UJ 462 71.3 334 U 7.4 J 808 U GWA-6S (68.5-70) 3/12/2015 428 U 11900 42.8 UJ 3790 419 U 428 U 6.3 J 1030 U GWA 7S 60-60.2 3/10/2015 NA NA NA NA NA NA NA 686 U GWA 7S 60.2-60.4 3/10/2015 276 U 3170 27.6 UJ 3570 60.7 276 U 7.2 J NA MW-200BR(9-9.4) 4/24/2015 274 U 4240 27.4 UJ 4960 263 U 274 U 5.9 J NA MW-200BR(9-9.4) 4/28/2015 NA NA NA NA NA NA NA 1610 MW-200BR(15.8-15.9) 4/25/2015 211 U 691 21.1 UJ 726 J 793 U 211 U 8.9 J NA MW-203BR(87.5-87.8) 3/23/2015 263 U 9030 26.3 UJ 4670 263 U 263 U 6.4 J NA General Notes: mg/kg - milligrams per kilogram NA - Not analyzed or not reported by analytical laboratory Std. Units - pH units Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either applicable criteria. bold - indicates exceedance of NCDENR Industrial Health Based PSRG Italic/underline- indicates exceedance of NCDENR Protection of Groundwater PSRG North Carolina Department of Environment and Natural Resources Division of Waste Management Soil Remediation Goals Table (March 2015) - Preliminary Industrial Health Based Soil Remediation Goal (PSRG) and Protection of Groundwater PSRG. *'Note: No PSRG for Total Chromium is currently available, as a surrogate the PSRG for Trivalent Chromium was used for comparison purposes only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 3 of 3 Table 8-6. Total Inorganic Results - Soil SPLP Analyte Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Chromium Cobalt Copper CAS RN 7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-41-7 7440-42-8 7440-43-9 7440-47-3 7440-48-4 7440-50-8 Fraction SPLP SPLP SPLP SPLP SPLP SPLP SPLP SPLP SPLP SPLP Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD NS NS 10 700 NS 700 2 10 NS 1000 IMAC* NS 1 NS NS 4 NS NS NS 1 NS Sample Name Sample Date AB-4BR(33-34.5) 5/28/2015 4160 4.4 202 440 1.5 316 0.26 48.7 3.1 25.8 AB-4BR(63) 5/29/2015 818 4.9 97.2 150 0.21 546 0.059 J 12.6 0.46 J 8.3 AB-6GTB(15-17) 5/18/2015 185 0.5 U 0.93 113 0.2 U 57.3 0.08 U 0.65 0.4 J 0.49 J+ AB-8D(44-46) 5/9/2015 2140 8.9 81.6 74.1 J+ 0.12 J+ 614 0.025 J 6.2 J+ 0.22 J+ 2.6 J+ General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 "NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 1 of 3 Table 8-6. Total Inorganic Results - Soil SPLP Analyte Iron Lead Manganese Mercury Molybdenum Nickel Selenium Strontium Thallium Vanadium CAS RN 7439-89-6 7439-92-1 7439-96-5 7439-97-6 7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 Fraction SPLP SPLP SPLP SPLP SPLP SPLP SPLP SPLP SPLP SPLP Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD 300 15 50 1 NS 100 20 NS NS NS IMAC* NS NS NS NS NS NS NS NS 0.2 0.3 Sample Name Sample Date AB-4BR(33-34.5) 5/28/2015 1590 9.5 17.8 0.2 U 10.1 6.1 108 277 1.3 274 AB-4BR(63) 5/29/2015 394 1.3 10.4 0.2 UJ 7.6 1.6 64.2 104 0.21 88.6 AB-6GTB(15-17) 5/18/2015 95.8 J+ 0.086 J+ 4.5 J+ 0.2 U 12.7 1.3 0.5 U 10.8 0.1 U 1.6 AB-8D(44-46) 5/9/2015 134 J+ 0.65 J+ 3.3 J+ 0.2 U 35.3 0.71 J+ 105 112 0.13 J+ 164 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 "NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 2 of 3 Table 8-6. Total Inorganic Results - Soil SPLP Analyte Zinc Calcium Chloride Magnesium Nitrate Potassium Sodium Sulfate pH (field) CAS RN 7440-66-6 7440-70-2 16887-00-6 7439-95-4 14797-55-8 7440-09-7 7440-23-5 14808-79-8 PH Fraction SPLP SPLP SPLP SPLP SPLP SPLP SPLP SPLP PH Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I Std. Units 15A NCAC 02L STANDARD 1000 NS 250000 NS 10000 NS NS 250000 6.5 - 8.5 IMAC* NS NS NS NS NS NS NS NS NS Sample Name Sample Date AB-4BR(33-34.5) 5/28/2015 49 8820 5000 U 442 210 J+ 347 1140 6400 J+ 8.5 J AB-4BR(63) 5/29/2015 14.4 9770 5000 U 730 200 U 121 1840 6300 J+ 9.2 J AB-6GTB(15-17) 5/18/2015 65 937 5000 U 142 500 J+ 74.4 J+ 1380 3200 J+ 7.1 J AB-8D(44-46) 5/9/2015 9.6 J+ 8670 5000 U 229 J+ 200 UJ 175 J+ 2270 9600 J+ NA General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 "NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 3 of 3 Table 8-7. Frequency and Concentration Ranges in Soil for COI Exceedances of North Carolina PSRGs Constituent of Interest NC Industrial PSRG NC Protection of GW PSRG No. of Borings > NC PSRGs' Concentration Range of Exceedances (in mg/kg) Arsenic 3 5.8 23 3.1J (GWA-6S) to 128 (AB-1S) Barium 44000 580 1 620J- (GWA-9GTB) Cobalt 70 0.9 31 1.7J (BG-1 D) to 161 (SB-3) Iron 100,000 150 33 912 (GWA-12D) to 98,200 (BG-3S) Manganese 5,200 65 32 68.2 (MW-200BR) to 1,390 (AB-9S) Selenium 1,200 2.1 10 2.2J (BG-1 D) to 11.3 (AB-81D) Vanadium 1,200 6 32 6.6J (BG-3S) to 156 (GWA-6S) Notes: 1. For the "No. of Borings > North Carolina PSRGs" column, data reported represents borings, not individual samples within a given boring; exceedances of both Industrial and Protection of Groundwater PSRGs have been counted. 2. J = Estimated concentration Belews Creek Steam Station Page 1 of 1 Table 8-8. Frequency and Concentration Ranges in PWR and Bedrock for COI Exceedances of North Carolina PSRGs Constituent of Interest NC Industrial PSRG NC Protection of GW PSRG No. of Borings > NC PSRGs' Concentration Range of Exceedances (in mg/kg) Arsenic 3 5.8 3 3.2J (BG-2D) to 7.2J (BG-1S) Cobalt 70 0.9 6 6.6 (BG-2D) to 28.1 (BG-2D) Iron 100,000 150 7 4,080 (MW-200BR) to 36,400 (BG-2D) Manganese 5,200 65 5 71.1 (MW-200BR) to 564 (BG-2D) Vanadium 1,200 6 6 6.8J (BG-1S) to 125 (BG-2D) Notes: 1. For the "No. of Borings > North Carolina PSRGs" column, data reported represents borings, not individual samples within a given boring; exceedances of both Industrial and Protection of Groundwater PSRGs have been counted. 2. J = Estimated concentration Belews Creek Steam Station Page 1 of 1 Table 8-9. Range of Constituent Concentrations and Comparison to Range of Reported Background Concentrations — Soil Beneath Ash Basin Constituent Background Soil Concentrations (Range, mg/kg) Soil Concentrations Beneath the Ash Basin (Range, mg/kg) Arsenic 1.6J to 34.6 5.4J to 128 Cobalt 1.7J to 37.9 3.5J to 120J- Iron 1,130 to 98,200 9450 to 31,200 Manganese 18.5 to 1,010 79.2 to 1390 Selenium 2.2J to 3J 3.8J to 11.3 Vanadium 6.6J to 293 12.4 to 117J Belews Creek Steam Station Page 1 of 1 Table 8-10. Range of Constituent Concentrations and Comparison to Range of Reported Background Concentrations — Soil Outside the Waste Boundary Constituent Background Soil Concentrations (Range, mg/kg) Soil Concentrations Outside the Waste Boundary (Range, mg/kg) Arsenic 1.6J to 34.6 3.1J to 76.7 Barium 25.1 to 153 22.9 to 620J- Cobalt 1.7J to 37.9 2.2J to 161 Iron 1,130 to 98,200 912 to 45,800 Manganese 18.5 to 1,010 68.2 to 1,070 Selenium 2.2J to 3J 2.6J to 5.6 Vanadium 6.6J to 293 8 to156 Belews Creek Steam Station Page 1 of 1 Table 8-11. Range of Constituent Concentrations and Comparison to Range of Reported Background Concentrations — PWR and Bedrock Outside Waste Boundary Constituent Background PWR and Bedrock Concentrations (Range, mg/kg) PWR and Bedrock Concentrations Outside the Waste Boundary and within Compliance Boundary (Range, mg/kg) Arsenic <5.4 mg/kg to 7.2J mg/kg <2.6 mg/kg to 76.7 mg/kg Cobalt 6.6 mg/kg to 20.7 mg/kg 2.8J mg/kg to 25.1 mg/kg Iron 9,410 mg/kgmg/kg to 12,900 mg/kgmg/kg 4,080 mg/kgmg/kg to 49,500 mg/kg Manganese 301 mg/kg to 411 mg/kg 59.9 mg/kg to 697 mg/kg Selenium <5.4 mg/kg <2.6 mg/kg to 2.9J mg/kg Vanadium 6.8J mg/kg to 24.2 mg/kg 7.6 mg/kg to 156 mg/kg Belews Creek Steam Station Page 1 of 1 Table 9-1. Surface Water Samples Results - Total and Dissolved Analyte Aluminum Aluminum Antimony Antimony Arsenic Arsenic Barium Barium Beryllium Beryllium Boron Boron Cadmium Cadmium Chromium CAS RN 7429-90-5 7429-90-5 7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-39-3 7440-39-3 7440-41-7 7440-41-7 7440-42-8 7440-42-8 7440-43-9 7440-43-9 7440-47-3 FRACTION D T D T D T D T D T D T D T D Result Unit u /I u /I u /I u /I u /I u /l u /I u /I u /I u /l u /I u /l u /I u /I u /1 NC 2B SW Criteria < AL HH WS 87 87 5.6 5.6 10 10 1000 1000 6.5 6.5 NS NS 0.15 0.15 24 Sample Name Sample Date SW-BL-D 7/20/2015 NA NA 0.5 U 0.5 U 0.64 0.66 17 18 0.2 U 0.2 U 100 72 0.08 U 0.08 U 0.18 J SW-BL-U 7/20/2015 NA NA 0.5 U 0.5 U 0.69 0.62 17 18 0.2 U 0.2 U 73 71 0.08 U 0.08 U 0.22 J+ SW-DR-D 7/20/2015 NA NA 0.51 0.56 2.8 3.1 49 50 0.2 U 0.12 J 8100 7900 0.08 U 0.042 J 0.61 SW-DR-U 7/20/2015 NA NA 0.5 U 0.5 U 0.21 J 0.26 J 16 19 0.2 U 0.2 U 50 U 50 U 0.08 U 0.08 U 0.62 General Notes: NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter Shading + bold - indicates exceedance of NC 02B Surface North Carolina Department of Environment and Natural Resources Division of Water Resources 15A NCAC 02B Surface Water Standards and Protective Values & EPA National Recommended Water Quality Criteria. **NOTE for the purposes of comparison, the lowest value of the Water Supply, Human Health, or Freshwater Aquatic Life criteria was referenced in this table. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+-- Estimated concentration, biased high. J- --Estimated concentration. biased low. Belews Creek Steam Station Page 1 of 4 Table 9-1. Surface Water Samples Results - Total and Dissolved Analyte Chromium Cobalt Cobalt Copper Copper Iron Iron Lead Lead Manganese Manganese Mercury Mercury Molybdenum Molybdenum CAS RN 7440-47-3 7440-48-4 7440-48-4 7440-50-8 7440-50-8 7439-89-6 7439-89-6 7439-92-1 7439-92-1 7439-96-5 7439-96-5 7439-97-6 7439-97-6 7439-98-7 7439-98-7 FRACTION T D T D T D T D T D T D T D T Result Unit u /I u /I u /I u /I u /I u /I u /I u /I u /I u /I u /I u /I u /I u /I u /I NC 2B SW Criteria < AL HH WS 24 3 3 2.7 2.7 NS NS 0.54 0.54 NS NS NS NS 160 160 Sample Name Sample Date SW-BL-D 7/20/2015 0.36 J 0.5 U 0.5 U 8.7 1.1 NA NA 0.83 0.059 J 2.7 J 8 NA 0.000505 1.7 1.8 SW-BL-U 7/20/2015 0.44 J 0.5 U 0.5 U 1.1 J+ 1.1 NA NA 0.1 U 0.1 U 5 U 14 NA 0.000569 1.9 1.6 SW-DR-D 7/20/2015 1.7 0.98 1.2 2.2 0.84 J NA NA 0.2 0.26 220 240 NA 0.00185 10.2 10.1 SW-DR-U 7/20/2015 0.87 0.5 U 0.22 J 0.69 J 0.89 J NA NA 0.14 0.48 26 60 NA 0.00233 J+ 0.16 J 0.14 J General Notes: NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter Shading + bold - indicates exceedance of NC 02B Surface North Carolina Department of Environment and Natural Resources Division of Water Resources 15A NCAC 02B Surface Water Standards and Protective Values & EPA National Recommended Water Quality Criteria. **NOTE for the purposes of comparison, the lowest value of the Water Supply, Human Health, or Freshwater Aquatic Life criteria was referenced in this table. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+-- Estimated concentration, biased high. J- --Estimated concentration. biased low. Belews Creek Steam Station Page 2 of 4 Table 9-1. Surface Water Samples Results - Total and Dissolved Analyte Nickel Nickel Selenium Selenium Strontium Strontium Thallium Thallium Vanadium Vanadium Zinc Zinc Alkalinity, HCO3 Alkalinity, CO3 Alkalinity, lab CAS RN 7440-02-0 7440-02-0 7782-49-2 7782-49-2 7440-24-6 7440-24-6 7440-28-0 7440-28-0 7440-62-2 7440-62-2 7440-66-6 7440-66-6 ALK-HCO3 ALK-CO3 ALK-LAB FRACTION D T D T D T D T D T D T N N N Result Unit u /I u /I u /I u /I u /I u /l u /I u /I u /I u /l u /I u /I u /I u /I u /I NC 2B SW Criteria < AL HH WS 16 16 NS NS 14000 14000 0.24 0.24 NS NS 36 36 NS NS NS Sample Name Sample Date SW-BL-D 7/20/2015 0.24 J 0.2 J 0.3 J 0.38 J 71 74 0.017 J 0.016 J 0.93 J 0.94 J IOU IOU 29800 5000 U 29800 SW-BL-U 7/20/2015 0.17 J+ 0.28 J 0.4 J 0.36 J 73 74 0.026 J 0.02 J 0.73 J 0.82 J 3.3 J+ IOU 28600 5000 U 28600 SW-DR-D 7/20/2015 0.99 1.5 2.4 2.6 460 450 0.53 0.55 2.7 3.4 15 2.8 J 23100 5000 U 23100 SW-DR-U 7/20/2015 0.36 J 0.42 J 0.5 U 0.5 U 39 38 0.1 U 0.1 U 1 U 1.7 2.6 J IOU 20400 5000 U 20400 General Notes: NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter Shading + bold - indicates exceedance of NC 02B Surface North Carolina Department of Environment and Natural Resources Division of Water Resources 15A NCAC 02B Surface Water Standards and Protective Values & EPA National Recommended Water Quality Criteria. **NOTE for the purposes of comparison, the lowest value of the Water Supply, Human Health, or Freshwater Aquatic Life criteria was referenced in this table. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+-- Estimated concentration, biased high. J- --Estimated concentration. biased low. Belews Creek Steam Station Page 3 of 4 Table 9-1. Surface Water Samples Results - Total and Dissolved Analyte Calcium Chloride Magnesium Methane Nitrogen, NO2 plus NO3 Potassium Sodium Sulfate Sulfide Total Organic Carbon Total Dissolved Solids Total Suspended CAS RN 7440-70-2 16887-00-6 7439-95-4 74-82-8 NO2-NO3 7440-09-7 7440-23-5 14808-79-8 18496-25-8 TOC TDS TSS FRACTION T N T N N T T N N N N N Result Unit u /I u /I u /I u /I u /I u /I u /I u /I u /I u /l u /I u /l NC 2B SW Criteria < AL HH WS NS 230000 NS NS NS NS NS 250000 NS NS I NS NS Sample Name Sample Date SW-BL-D 7/20/2015 8110 8000 3670 4.8 J+ 20 U 3710 J 7300 8600 100 U 3200 80000 2500 U SW-BL-U 7/20/2015 7840 7800 3590 1.8 J+ 20 U 3660 J 7160 8300 100 U 3200 63000 3300 SW-DR-D 7/20/2015 110000 240000 36100 4.9 J+ 130 4240 J 8190 66100 100 U 2800 815000 9700 SW-DR-U 7/20/2015 4900 3300 2020 7.7 J+ 270 5000 U 3680 J 1800 100 U 5300 58000 13700 General Notes: NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter Shading + bold - indicates exceedance of NC 02B Surface North Carolina Department of Environment and Natural Resources Division of Water Resources 15A NCAC 02B Surface Water Standards and Protective Values & EPA National Recommended Water Quality Criteria. **NOTE for the purposes of comparison, the lowest value of the Water Supply, Human Health, or Freshwater Aquatic Life criteria was referenced in this table. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+-- Estimated concentration, biased high. J- --Estimated concentration. biased low. Belews Creek Steam Station Page 4 of 4 Table 9-2. Surface Water Field Parameters Well ID Date Collected Time Collected Temp (°C) pH (SU) Specific Cond. (pS) Diss. Oxy (mg/L) ORP/Redox (mV) Turbidity (NTU) SW-BL-D 7/20/2015 11:10 32.9 7.03 129 6.94 68 1.5 SW-BL-U 7/20/2015 11:30 35.1 7.43 100 4.3 211 4.21 SW-DR-D 7/20/2015 9:45 26.77 5.92 1040 7.52 131 11.5 SW-DR-U 7/17/2015 8:30 20 5.39 68 7.84 204.8 23.5 General Notes: °C - degrees celsius SU - standard units mg/I - milligrams per liter pS - microsiemens mV - millivolts NTU - nephelometric turbidity units Comparison Criteria: NS - No applicable standard for this parameter Shading + bold - indicates exceedance of NC 02B Surface Water Criteria North Carolina Department of Environment and Natural Resources Division of Water Resources 15A NCAC 02B Surface Water Standards and Protective Values & EPA National Recommended Water Quality Criteria. **NOTE for the purposes of comparison, the lowest value of the Water Supply, Human Health, or Freshwater Aquatic Life criteria was referenced in this table. Belews Creek Steam Station Page 1of1 Table 9-3. Seep Sample Results - Total and Dissolved Analyte Aluminum Aluminum Antimony Antimony Arsenic Arsenic Barium Barium Beryllium Beryllium CAS RN 7429-90-5 7429-90-5 7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-39-3 7440-39-3 7440-41-7 7440-41-7 Fraction D T D T D T D T D T Result Unit ug/l ug/I ug/1 ug/I ug/I ug/I ug/I ug/I ug/l ug/1 15A NCAC 02L STANDARD NS NS NS NS 10 10 700 700 NS NS IMAC* NS NS 1 1 NS NS NS NS 4 4 Sample Name Sample Date S-1 7/16/2015 NA NA 0.5 U 0.5 U 0.41 J 0.56 20 21 0.2 U 0.094 J S-2 7/16/2015 NA NA 0.5 U 0.5 U 0.68 0.81 130 130 0.18 J 0.18 J S-3 7/17/2015 NA NA 0.5 U 0.5 U 0.55 1.2 12 13 0.2 U 0.1 J S-4 7/17/2015 NA NA 0.5 U 0.5 U 0.38 J 0.53 44 48 0.31 0.48 S-5 7/17/2015 NA NA 0.5 U 0.5 U 1.1 1.3 11 12 0.2 U 0.2 U S-7 7/17/2015 NA NA 0.5 U 0.5 U 2 16.9 36 37 0.2 U 0.14 J S-8 7/17/2015 NA NA 0.5 U 0.5 U 0.5 U 0.14 J 39 40 0.14 J 0.14 J S-9 7/17/2015 NA NA 0.5 U 0.5 U 0.22 J 0.32 J 46 47 0.45 0.43 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 1 of 6 Table 9-3. Seep Sample Results - Total and Dissolved Analyte Boron Boron Cadmium Cadmium Chromium Chromium Cobalt Cobalt Copper Copper CAS RN 7440-42-8 7440-42-8 7440-43-9 7440-43-9 7440-47-3 7440-47-3 7440-48-4 7440-48-4 7440-50-8 7440-50-8 Fraction D T D T D T D T D T Result Unit ug/l ug/I ug/1 ug/I ug/l ug/I ug/l ug/I ug/I ug/1 15A NCAC 02L STANDARD 700 700 2 2 10 10 NS NS 1000 1000 IMAC* NS NS NS NS NS NS 1 1 NS NS Sample Name Sample Date Ti 7/16/2015 31 J 50 U 0.08 U 0.08 U 0.6 1.5 0.72 0.98 0.36 J+ 1 U S-2 7/16/2015 110 120 0.08 U 0.069 J 0.54 0.27 J 0.75 0.79 0.34 J+ 0.39 J S-3 7/17/2015 50 U 50 U 0.08 U 0.08 U 0.36 J 11.5 0.87 1.1 1.3 1.8 S-4 7/17/2015 50 U 50 U 0.075 J 0.072 J+ 0.46 J 0.35 J 0.8 0.86 1.1 0.28 J S-5 7/17/2015 50 U 50 U 0.08 U 0.08 U 0.4 J 0.51 0.76 0.92 2.2 5.6 S-7 7/17/2015 50 U 50 U 0.08 U 0.1 0.47 J 0.67 3.3 6.7 1 U 0.95 J S-8 7/17/2015 75 72 0.042 J 0.033 J 0.42 J 0.26 J 0.5 U 0.5 U 1 U 1 U S-9 7/17/2015 1 2800 1 2800 1 0.72 1 0.81 1 0.29 J 1 0.43 J 1 1.2 1 1.2 1 0.79 J 1 0.44 J General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 2 of 6 Table 9-3. Seep Sample Results - Total and Dissolved Analyte Iron Iron Lead Lead Manganese Manganese Mercury Mercury Molybdenum Molybdenum CAS RN 7439-89-6 7439-89-6 7439-92-1 7439-92-1 7439-96-5 7439-96-5 7439-97-6 7439-97-6 7439-98-7 7439-98-7 Fraction D T D T D T D T D T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD 300 300 15 15 50 50 1 1 NS NS IMAC* NS NS NS NS NS NS NS NS NS NS Sample Name Sample Date Ti 7/16/2015 NA NA 0.12 0.54 60 57 NA 0.00137 0.15 J 0.18 J S-2 7/16/2015 NA NA 0.1 U 0.1 U 320 270 NA 0.000726 0.5 U 0.5 U S-3 7/17/2015 NA NA 0.09 J+ 0.43 J+ 110 110 NA 0.00433 0.5 U 0.13 J S-4 7/17/2015 NA NA 0.076 J+ 0.13 J+ 70 75 NA 0.00664 0.5 U 0.5 U S-5 7/17/2015 NA NA 0.11 J+ 0.25 J+ 130 140 NA 0.00284 0.5 U 0.5 U S-7 7/17/2015 NA NA 0.1 U 0.79 460 460 NA 0.013 0.5 U 0.19 J S-8 7/17/2015 NA NA 0.1 U 0.072 J 11 11 NA 0.00068 0.5 U 0.5 U S-9 7/17/2015 1 NA I NA 1 0.1 U 1 0.097 J 1 450 460 1 NA 1 0.00173 1 0.5 U 1 0.12 J General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 3 of 6 Table 9-3. Seep Sample Results - Total and Dissolved Analyte Nickel Nickel Selenium Selenium Strontium Strontium Thallium Thallium Vanadium Vanadium CAS RN 7440-02-0 7440-02-0 7782-49-2 7782-49-2 7440-24-6 7440-24-6 7440-28-0 7440-28-0 7440-62-2 7440-62-2 Fraction D T D T D T D T D T Result Unit ug/l ug/I ug/1 ug/I ug/l ug/I ug/I ug/I ug/l ug/1 15A NCAC 02L STANDARD 100 100 20 20 NS NS NS NS NS NS IMAC* NS NS NS NS NS NS 0.2 0.2 0.3 0.3 Sample Name Sample Date Ti 7/16/2015 0.45 J 0.66 0.5 U 0.5 U 21 21 0.023 J 0.034 J 0.811 2.6 S-2 7/16/2015 3.4 3.5 0.5 U 0.5 U 98 99 0.17 0.15 1 U 0.46 J S-3 7/17/2015 0.5 U 4.1 0.5 U 0.5 U 14 15 0.043 J 0.056 J+ 1 U 0.5 J S-4 7/17/2015 1.5 1.5 0.5 U 0.5 U 120 130 0.11 0.12 J+ 1 U 1 U S-5 7/17/2015 0.4 J 0.38 J 0.5 U 0.5 U 28 29 0.041 J 0.059 J+ 1 U 0.47 J S-7 7/17/2015 0.56 0.86 0.5 U 0.5 U 12 13 0.1 U 0.12 1 U 1.1 S-8 7/17/2015 0.33 J 0.25 J 3.5 3.5 45 45 0.1 U 0.019 J 0.29 J 0.45 J S-9 7/17/2015 1 11.2 1 11 1 6.3 1 6.2 1 320 1 330 1 0.024 J 0.06 J 0.33 J 0.64 J General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 4 of 6 Table 9-3. Seep Sample Results - Total and Dissolved Analyte Zinc Zinc Alkalinity, HCO3 Alkalinity, CO3 Alkalinity, lab Calcium Chloride Magnesium Methane Nitrogen, NO2 plus NO3 CAS RN 7440-66-6 7440-66-6 ALK-HCO3 ALK-0O3 ALK-LAB 7440-70-2 16887-00-6 7439-95-4 74-82-8 NO2-NO3 Fraction D T N N N T N T N N Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/l ug/I 15A NCAC 02L STANDARD 1000 1000 NS NS NS NS 250000 NS NS NS IMAC* NS NS NS NS NS NS NS NS NS NS Sample Name Sample Date Ti 7/16/2015 IOU IOU 22800 5000 U 22800 3900 2300 2250 9.1 J+ 46 S-2 7/16/2015 IOU IOU 3200 J 5000 U 3200 J 7530 55000 8580 11 J+ 76 S-3 7/17/2015 IOU IOU 9200 5000 U 9200 1290 2800 880 4.9 J+ 26 S-4 7/17/2015 IOU 3.8 J 6800 5000 U 6800 9440 42600 6530 13.5 71 S-5 7/17/2015 IOU IOU 15000 5000 U 15000 2690 2700 1640 11.7 27 S-7 7/17/2015 IOU IOU 11700 5000 U 11700 1390 4100 1200 6.9 J+ 20 U S-8 7/17/2015 IOU IOU 20200 5000 U 20200 5600 10200 3130 8.6 J+ 350 S-9 7/17/2015 1 64 63 22500 5000 U 22500 92200 J- 8900 56100 1.5 J+ 2900 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 5 of 6 Table 9-3. Seep Sample Results - Total and Dissolved Analyte Potassium Sodium Sulfate Sulfide Total Organic Carbon Total Dissolved Solids Total Suspended Solids CAS RN 7440-09-7 7440-23-5 14808-79-8 18496-25-8 TOC TDS TSS Fraction T T N N N N N Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD NS NS 250000 NS NS 500000 NS IMAC* NS NS NS NS NS NS NS Sample Name Sample Date Ti 7/16/2015 5000 U 3510 J 520 J 100 U 1500 63000 7800 S-2 7/16/2015 3860J 10500 1000 U 100 U 1100 152000 2700 S-3 7/17/2015 5000 U 3000 J 1100 100 U 2900 37000 4000 S-4 7/17/2015 2940 J 8860 1000 U 100 U 740 J 143000 7000 S-5 7/17/2015 5000 U 2880 J 1400 100 U 700 J 49000 6800 S-7 7/17/2015 5000 U 3360 J 1000 U 100 U 4000 25000 U 45300 S-8 7/17/2015 5000 U 10300 8800 100 U 740J 97000 2500 U S-9 7/17/2015 1 5210 1 37100 1 475000 1 100 U 1 2500 1 791000 1 2500 U General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 6 of 6 Table 9-4. Seep Sample Results - Speciation Analyte As(III) As(V) Chromium (III) Chromium (VI) Fe(II) Fe(III) Mn(II) Mn(IV) Se(IV) CAS RN 7784-46-5 10103-60-3 16065-83-1 18540-29-9 1345-25-1 1309-37-1 1344-43-0 1313-13-9 10102-18-8 Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I Sample Name Sample Date S-1 7/16/2015 0.568 J+ 0.5 U 1.208 0.022 18.5 J- 569.5 56.9 6.2 2 U S-2 7/16/2015 0.777 J+ 0.5 U 0.28 J 0.02 U 34.9 J+ 11.4 318 5 2 U S-3 7/17/2015 0.184 J+ 0.673 1.21 0.01 J 92 642 131 21J 2 U S-5 7/17/2015 0.484 J+ 0.281 J 1.2J 0.02 U 80 422 156 4 2 U S-7 7/17/2015 2.09 J+ 0.5 U 0.328 J 0.02 U 523 1207 461 2U 2 U S-8 7/17/2015 0.445 J+ 0.5 U 0.193 0.042 60 130 12.5 0.5 2 U S-9 7/17/2015 0.5 U 0.5 U 0.298 0.01 J 40 U 45.8 473 25 2 U General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 1 of 2 Table 9-4. Seep Sample Results - Speciation Analyte Se(VI) CAS RN 13410-01-0 Result Unit ug/I Sample Name Sample Date S-1 7/16/2015 2 U S-2 7/16/2015 2 U S-3 7/17/2015 2 U S-5 7/17/2015 2 U S-7 7/17/2015 2 U S-8 7/17/2015 3.75 S-9 7/17/2015 6.4 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 2 of 2 Table 9-5. Sediment Sample Results - Total and Dissolved Analyte Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Chromium Cobalt Copper CAS RN 7429-90-5 7440-36-0 7440-38-2 7440-39-3 7440-41-7 7440-42-8 7440-43-9 7440-47-3 7440-48-4 7440-50-8 Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg NC PSRG Ind 100000 94 3 44000 460 46000 200 100000 70 9400 NC PSRG Prot GW NS 0.9 5.8 580 63 45 3 360000 0.9 700 Sample Name Sample Date SD-BL-D SEDIMENT 7/20/2015 4410 6.7 U 6.7 U 34.3 0.22 J 16.8 U 0.81 U 2.2 6.7 U 3.4 SD-BL-U SEDIMENT 7/20/2015 3010 7.7 U 7.7 U 19.3 0.46 19.2 U 0.92 U 5.2 7.7 U 3.8 SD-DR-D SEDIMENT 7/20/2015 7560 7.3 UJ 5.2 J- 70.6 0.69 13.5 J 0.87 UJ 16.6 9.3 J- 9.1 SD-DR-U SEDIMENT 7/20/2015 4050 6.7 U 6.7 U 42.2 0.26 J 16.8 U 0.81 U 8.4 6.7 U 3.9 General Notes: mg/kg - milligrams per kilogram NA - Not analyzed or not reported by analytical laboratory Std. Units - pH units Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either applicable criteria. bold - indicates exceedance of NCDENR Industrial Health Based PSRG Italic/underline- indicates exceedance of NCDENR Protection of Groundwater PSRG North Carolina Department of Environment and Natural Resources Division of Waste Management Soil Remediation Goals Table (March 2015) - Preliminary Industrial Health Based Soil Remediation Goal (PSRG) and Protection of Groundwater PSRG. **Note: No PSRG for Total Chromium is currently available, as a surrogate the PSRG for Trivalent Chromium was used for comparison purposes only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 1 of 3 Table 9-5. Sediment Sample Results - Total and Dissolved Analyte Iron Lead Manganese Mercury Molybdenum Nickel Selenium Strontium Thallium Vanadium CAS RN 7439-89-6 7439-92-1 7439-96-5 7439-97-6 7439-98-7 7440-02-0 7782-49-2 7440-24-6 7440-28-0 7440-62-2 Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg NC PSRG Ind 100000 800 5200 8 1200 4400 1200 100000 2.4 1200 NC PSRG Prot GW 150 270 65 1 NS 130 2.1 NS 0.28 6 Sample Name Sample Date SD-BL-D SEDIMENT 7/20/2015 6430 4.1 J 68.3 0.0075 J 3.4 U 1.4 J 6.7 U 5.2 6.7 U 14.6 SD-BL-U SEDIMENT 7/20/2015 4760 7.7 U 62.2 0.012 U 3.8 U 3 7.7 U 2.2 J 7.7 U 11 SD-DR-D SEDIMENT 7/20/2015 13800 6.6 J- 217 0.011 J 3.6 U 10 4.3 J- 6.6 7.3 U 28.5 J- SD-DR-U SEDIMENT 7/20/2015 6990 6.7 U 90.4 0.01 J 3.4 U 3.3 6.7 U 3 J 6.7 U 15 General Notes: mg/kg - milligrams per kilogram NA - Not analyzed or not reported by analytical laboratory Std. Units - pH units Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either applicable criteria. bold - indicates exceedance of NCDENR Industrial Health Based PSRG Italic/underline- indicates exceedance of NCDENR Protection of Groundwater PSRG North Carolina Department of Environment and Natural Resources Division of Waste Management Soil Remediation Goals Table (March 2015) - Preliminary Industrial Health Based Soil Remediation Goal (PSRG) and Protection of Groundwater PSRG. **Note: No PSRG for Total Chromium is currently available, as a surrogate the PSRG for Trivalent Chromium was used for comparison purposes only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 2 of 3 Table 9-5. Sediment Sample Results - Total and Dissolved Analyte Zinc Calcium Chloride Magnesium Nitrate Potassium Sodium Sulfate pH (field) Total Organic Carbon CAS RN 7440-66-6 7440-70-2 16887-00-6 7439-95-4 14797-55-8 7440-09-7 7440-23-5 14808-79-8 PH TOC Result Unit mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Std. Units mg/kg NC PSRG Ind 70000 NS NS NS 100000 NS NS NS NS NS NC PSRG Prot GW 1200 NS NS NS NS NS NS NS NS NS Sample Name Sample Date SD-BL-D SEDIMENT 7/20/2015 8.1 437 338 U 603 33.8 UJ 461 335 U 338 U 6.7 J 2190 SD-BL-U SEDIMENT 7/20/2015 11.2 176 J 372 U 868 37.2 UJ 628 383 U 372 U 6 J 2540 SD-DR-D SEDIMENT 7/20/2015 40.1 712 228 J 2340 36.9 UJ 1600 365 U 369 U 6.5 J 4500 SD-DR-U SEDIMENT 7/20/2015 16.3 262 336 U 1200 33.6 UJ 845 336 U 336 U 5.8 J 1340 General Notes: mg/kg - milligrams per kilogram NA - Not analyzed or not reported by analytical laboratory Std. Units - pH units Comparison Criteria: NS - No applicable standard for this parameter Shading indicates exceedance of either applicable criteria. bold - indicates exceedance of NCDENR Industrial Health Based PSRG Italic/underline- indicates exceedance of NCDENR Protection of Groundwater PSRG North Carolina Department of Environment and Natural Resources Division of Waste Management Soil Remediation Goals Table (March 2015) - Preliminary Industrial Health Based Soil Remediation Goal (PSRG) and Protection of Groundwater PSRG. **Note: No PSRG for Total Chromium is currently available, as a surrogate the PSRG for Trivalent Chromium was used for comparison purposes only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 3 of 3 Table 10-1. State and Federal Drinking Water Standards Constituent NCAC 2L Groundwater Standard (µg/L) IMAC (µg/L) EPA Primary MCL (µg/L) EPA Secondary MCL (µg/L) Aluminum - 50 - 200 Antimony - 1 6 - Arsenic 10 - 10 Barium 700 - 2,000 Boron 700 - - - Chloride 250,000 - 250,000 Cobalt - 1 - - Lead 15 - 15 - Iron 300 - - 300 Manganese 50 - 50 pH 6.5-8.5* - - 6.5-8.5* Selenium 20 - 50 - Thallium - 0.2 2 - TDS 500,000 - - 500,000 Vanadium 0.3 Notes: * Standard Units µg/L indicate micrograms per liter Belews Creek Steam Station Page 1 of 1 Table 10-2. Private Well Sample Results Arsenic Concentrations in Stokes County Groundwater Count 391 Minimum (µg/L) 0.5 Maximum (µg/L) 13 Mean (µg/L) 1.7 Percentage of wells above MCL 0.51% Barium Concentrations in Stokes County Groundwater Count 154 Minimum (µg/L) 50 Maximum (µg/L) 50 Mean (µg/L) 50 Percentage of wells above MCL 0.00% Cadmium Concentrations in Stokes County Groundwater Count 154 Minimum (µg/L) 0.5 Maximum (µg/L) 0.5 Mean (µg/L) 0.5 Percentage of wells above MCL 0.00% Chromium Concentrations in Rockingham County Groundwater Count 154 Minimum (µg/L) 5 Maximum (µg/L) 80 Mean (µg/L) 5.6 Percentage of wells above MCL 0.00% Iron Concentrations in Stokes County Groundwater Count 387 Minimum (µg/L) 25 Maximum (µg/L) 33,970 Mean (µg/L) 731.7 Percentage of wells above SMCL 31.27% Lead Concentrations in Stokes County Groundwater Count 506 Minimum (µg/L) 2.5 Maximum (µg/L) 49 Mean (µg/L) 3.9 Percentage of wells above SMCL 4.55% Arsenic Concentrations in Rockingham County Groundwater Count 577 Minimum (µg/L) 0.5 Maximum (µg/L) 20 Mean (µg/L) 1.8 Percentage of wells above MCL 0.69% Barium Concentrations in Rockingham County Groundwater Count 245 Minimum (µg/L) 50 Maximum (µg/L) 50 Mean (µg/L) 50 Percentage of wells above MCL 0.00% Cadmium Concentrations in Rockingham County Groundwater Count 245 Minimum (µg/L) 0.5 Maximum (µg/L) 5 Mean (µg/L) 0.6 Percentage of wells above MCL 0.00% Chromium Concentrations in Rockingham County Groundwater Count 245 Minimum (µg/L) 0.5 Maximum (µg/L) 5 Mean (µg/L) 0.6 Percentage of wells above MCL 0.00% Iron Concentrations in Rockingham County Groundwater Count 575 Minimum (µg/L) 25 Maximum (µg/L) 27,270 Mean (µg/L) 602.4 Percentage of wells above SMCL 24.00% Lead Concentrations in Rockingham County Groundwater Count 584 Minimum (µg/L) 2.5 Maximum (µg/L) 115 Mean (µg/L) 3.6 Percentage of wells above SMCL 2.40% Belews Creek Steam Station Page 1 of 2 Table 10-2. Private Well Sample Results pH of Stokes County Groundwater Count 391 Minimum (Standard Units) 4.1 Maximum (Standard Units) 9.5 Mean (Standard Units) 6.9 Percentage of wells above SMCL 0.26% Percentage of wells below SMCL 18.41% Selenium Concentrations in Stokes County Groundwater Count 154 Minimum (µg/L) 2.5 Maximum (µg/L) 25.3 Mean (µg/L) 2.7 Percentage of wells above MCL 0.00% pH of Rockingham County Groundwater Count 577 Minimum (Standard Units) 4.6 Maximum (Standard Units) 9.2 Mean (Standard Units) 7 Percentage of wells above SMCL 0.35% Percentage of wells below SMCL 16.98% Selenium Concentrations in Rockingham County Groundwater Count 245 Minimum (µg/L) 2.5 Maximum (µg/L) 26 Mean (µg/L) 2.7 Percentage of wells above MCL 0.00% Belews Creek Steam Station Page 2 of 2 Table 10-3. Iron and Manganese Concentrations Region Average Concentration of Iron in Groundwater (Ng/L) North Carolina Coastal Plain 2715 North Carolina Piedmont 624 North Carolina Mountains 622 North Carolina (statewide) 1320 Region Average Concentration of Manganese in Groundwater (Ng/L) North Carolina Coastal Plain 41 North Carolina Piedmont 221 North Carolina Mountains 44 North Carolina (statewide) 102 Belews Creek Steam Station Page 1 of 1 Table 10-4. Redox Conditions - General Redox Category Redox Parameter: Redox Category Redox Process Sample Name Sample Date AB-1S 7/10/2015 AnoxicOrMixed(ox-an) Fe(III)-02? AB-1D 7/10/2015 AnoxicOrMixed(ox-an) Fe(III)-02? AB-2S 7/15/2015 Mixed(anoxic) Fe(I I I)-SO4-02? AB-21D 7/15/2015 Mixed(anoxic) Fe(I I I)-SO4-02? AB-3S 7/11/2015 Mixed(anoxic) Fe(III)-SO4-02? AB-31D 7/10/2015 Mixed(anoxic) Fe(I I I)-SO4-02? AB-4D 7/16/2015 Mixed(anoxic) Fe(I I I)-SO4-02? AB-4BR 7/16/2015 OxicOrSuboxic 02?OrSuboxic AB-5D 7/14/2015 AnoxicOrMixed(ox-an) Fe(III)-02? AB-61D 7/8/2015 AnoxicOrMixed(ox-an) Mn(IV)-02? AB-7D 6/16/2015 Mixed(anoxic) Fe(I I I)-SO4-02? AB-81D 6/17/2015 Mixed(anoxic) Fe(I I I)-SO4-02? AB-9S 7/15/2015 AnoxicOrMixed(ox-an) CH4gen-02? AB-9D 7/16/2015 Mixed(anoxic) Fe(I I I)-SO4-02? AB-9BR 7/16/2015 Mixed(anoxic) Fe(I I I)-SO4-02? BG-1 D 7/14/2015 Mixed(anoxic) Fe(I I I)-SO4-02? BG-2S 7/9/2015 Mixed(anoxic) Fe(I I I)-SO4-02? BG-2D 7/9/2015 OxicOrSuboxic 02?OrSuboxic BG-2BR 7/9/2015 OxicOrSuboxic 02?OrSuboxic BG-3S 7/18/2015 OxicOrSuboxic 02?OrSuboxic BG-3D 7/18/2015 AnoxicOrMixed(ox-an) Fe(III)-02? GWA-1 S 7/12/2015 Mixed(anoxic) Fe(I I I)-SO4-02? GWA-1 D 7/12/2015 Mixed(anoxic) Fe(III)-SO4-02? GWA-2S 7/11/2015 AnoxicOrMixed(ox-an) Fe(III)-02? GWA-2D 7/11/2015 Mixed(anoxic) Fe(III)-SO4-02? GWA-3D 7/15/2015 OxicOrSuboxic 02?OrSuboxic GWA-4D 7/14/2015 Mixed(anoxic) Fe(I I I)-SO4-02? GWA-5S 7/14/2015 Mixed(anoxic) Fe(I I I)-SO4-02? GWA-5D 7/13/2015 AnoxicOrMixed(ox-an) Mn(IV)-02? GWA-5BR2 7/13/2015 OxicOrSuboxic 02?OrSuboxic GWA-6S 7/16/2015 AnoxicOrMixed(ox-an) Mn(IV)-02? GWA-6D 7/16/2015 Mixed(anoxic) Fe(I I I)-SO4-02? GWA-7S 7/15/2015 Mixed(anoxic) Fe(I I I)-SO4-02? GWA-7 D 7/15/2015 OxicOrSuboxic 02?OrS u boxic GWA-8S 7/14/2015 AnoxicOrMixed(ox-an) Mn(IV)-02? GWA-8D 7/15/2015 Mixed(anoxic) Fe(I I I)-SO4-02? GWA-9S 7/18/2015 AnoxicOrMixed(ox-an) Fe(III)-02? GWA-9D 7/18/2015 OxicOrSuboxic 02?OrSuboxic GWA-10S 7/18/2015 AnoxicOrMixed(ox-an) Mn(IV)-02? GWA-10D 7/18/2015 OxicOrSuboxic 02?OrSuboxic GWA-11 S 7/18/2015 Mixed(anoxic) Fe(I I I)-SO4-02? GWA-11 D 7/18/2015 Mixed(anoxic) Fe(III)-SO4-02? GWA-12S 7/17/2015 AnoxicOrMixed(ox-an) Fe(III)-02? GWA-12D 7/17/2015 Mixed(anoxic) Fe(II I)-SO4-02? GWA-12BR 7/17/2015 Mixed(anoxic) Fe(I I I)-SO4-02? GWA-16S 7/16/2015 AnoxicOrMixed(ox-an) CH4gen-02? GWA-16D 7/16/2015 OxicOrSuboxic 02?OrSuboxic GWA-17S 7/15/2015 AnoxicOrMixed(ox-an) Fe(III)-02? GWA-17D 7/15/2015 OxicOrSuboxic 02?OrSuboxic MW-102S 6/17/2015 Mixed(anoxic) Fe(I I I)-SO4-02? MW-102D 6/17/2015 Mixed(anoxic) Fe(I I I)-SO4-02? MW-103S 7/12/2015 AnoxicOrMixed(ox-an) Fe(III)-02? MW-103D 7/12/2015 AnoxicOrMixed(ox-an) Fe(III)-02? MW-200S 7/14/2015 Indeterminate -- MW-200D 7/14/2015 Mixed(anoxic) Fe(I I I)-SO4-02? MW-200BR 7/14/2015 Indeterminate -- MW-201 D 7/18/2015 Mixed(anoxic) Fe(III)-SO4-02? MW-202S 7/16/2015 OxicOrSuboxic 02?OrSuboxic MW-202D 7/16/2015 OxicOrSuboxic 02?OrSuboxic MW-202BR 7/16/2015 OxicOrSuboxic 02?OrSuboxic MW-203S 7/18/2015 OxicOrSuboxic 02?OrSuboxic MW-203D 7/18/2015 Mixed(anoxic) Fe(I I I)-SO4-02? MW-203BR 7/18/2015 Mixed(anoxic) Fe(I I I)-SO4-02? MW-204S 7/18/2015 AnoxicOrMixed(ox-an) Fe(III)-02? MW-204D 7/18/2015 Mixed(anoxic) Fe(I I I)-SO4-02? Notes: For samples with complete water quality results (measured DO, NO3, Mn, Fe, and SO4) the general redox category and redox process is assigned. For samples with incomplete water quality results (missing one or more parameter), samples are divided into two classes based on DO levels. For those samples that do not have DO data, but have NO3, Mn, Fe, and SO4, redox process and category is assigned but amended with additional information regarding the lack of DO data. For those samples that do not have data for either NO3, Mn, Fe, or SO4, samples are classified as "Indeterminate" Question marks (?) indicate that the process is likely in that direction though the calculation did not have enough information to completely assign a category. Calculations were made using the spreadsheet provided by the United States Geological Survey. Method was conducted following the report: An Excel Workbook for Identifying Redox Processes in Ground Water Open File Report 2009-1004. Available online at http://pubs.usgs.gov/of/2009/1004/ofr-2009-1004.pdf Belews Creek Steam Station Page 1 of 1 Table 10-5. Groundwater Sample Results - Background - Total and Dissolved Analyte Aluminum Aluminum Antimony Antimony Arsenic Arsenic Barium Barium Beryllium Beryllium CAS RN 7429-90-5 7429-90-5 7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-39-3 7440-39-3 7440-41-7 7440-41-7 Fraction D T D T D T D T D T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD NS NS NS NS 10 10 700 700 NS NS IMAC* NS NS 1 1 NS NS NS NS 4 4 Sample Name Sample Date BG-1 D 7/14/2015 100 U 140 0.27 J 1.5 0.16 J 0.46 J 5 U 4.1 J 0.2 U 0.2 U BG-2S 7/9/2015 100 U 410 0.5 U 0.5 U 0.5 U 0.5 U 51 60 0.2 U 0.2 U BG-2D 7/9/2015 100 U 78 J 0.32 J 0.25 J 0.17 J 0.2 J 7.4 7.8 0.2 U 0.2 U BG-2BR 7/9/2015 130 150 0.62 0.6 1.9 1.9 7.2 7.7 0.2 U 0.2 U BG-3S 7/18/2015 100 U 130 0.5 U 0.5 U 0.5 U 0.5 U 37 40 0.2 U 0.17 J BG-31D 7/18/2015 100 U 2200 0.5 U 0.16 J 0.32 J 0.43 J 5 U 51 0.2 U 0.33 MW-202S 7/16/2015 100 U 95 J 0.39 J+ 0.44 J+ 0.5 U 0.5 U 20 19 0.2 U 0.23 MW-202D 7/16/2015 100 U 65 J 0.99 J+ 0.94 J+ 0.5 U 0.5 U 5.8 5.3 0.2 U 0.2 U MW-202BR 7/16/2015 100 U 80 J 1.2 0.43 J 0.49 J 0.51 12 11 0.38 0.18 J General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 'NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 1 of 6 Table 10-5. Groundwater Sample Results - Background - Total and Dissolved Analyte Boron Boron Cadmium Cadmium Chromium Chromium Cobalt Cobalt Copper Copper CAS RN 7440-42-8 7440-42-8 7440-43-9 7440-43-9 7440-47-3 7440-47-3 7440-48-4 7440-48-4 7440-50-8 7440-50-8 Fraction D T D T D T D T D T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD 700 700 2 2 10 10 NS NS 1000 1000 IMAC* NS NS NS NS NS NS 1 1 NS NS Sample Name Sample Date BG-1 D 7/14/2015 50 U 50 U 0.16 0.2 0.26 J 2.7 1.8 0.9 10.5 1.8 BG-2S 7/9/2015 50 U 50 U 0.35 0.41 1.3 J+ 1.1 J+ 0.19 J 0.19 J 0.7 J+ 0.46 J BG-2D 7/9/2015 40 J+ 50 U 0.11 0.059 J 0.46 J+ 2.6 J+ 0.14 J 0.28 J 5.5 1 U BG-2BR 7/9/2015 36 J+ 50 U 0.042 J 0.14 1.8 J+ 3.6 J+ 0.5 U 0.5 U 0.62 J+ 0.77 J BG-3S 7/18/2015 50 U 50 U 0.035 J 0.052 J 0.57 J+ 1.2 J+ 0.52 0.53 2.7 J+ 1 U BG-31D 7/18/2015 50 U 50 U 0.08 U 0.08 U 0.29 J+ 0.77 J+ 0.5 U 0.23 J 0.71 J+ 1.2 J+ MW-202S 7/16/2015 50 U 50 U 0.08 U 0.08 U 0.73 J+ 1.2 J+ 0.5 U 0.5 U 0.38 J+ 0.9 J+ MW-202D 7/16/2015 50 U 50 U 0.08 U 0.08 U 0.47 J+ 0.87 J+ 0.5 U 0.5 U 0.24 J+ 0.59 J+ MW-202BR 7/16/2015 26 J 37 J 0.048 J 0.052 J 3.5 J+ 4.8 0.5 U 0.5 UJ 4.1 J+ 9.7 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 'NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 2 of 6 Table 10-5. Groundwater Sample Results - Background - Total and Dissolved Analyte Iron Iron Lead Lead Manganese Manganese Mercury Mercury Molybdenum Molybdenum CAS RN 7439-89-6 7439-89-6 7439-92-1 7439-92-1 7439-96-5 7439-96-5 7439-97-6 7439-97-6 7439-98-7 7439-98-7 Fraction D T D T D T D T D T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD 300 300 15 15 50 50 1 1 NS NS IMAC* NS NS NS NS NS NS NS NS NS NS Sample Name Sample Date BG-1 D 7/14/2015 50 U 100 0.99 0.26 120 93 0.2 U 0.2 U 0.34 J 1.1 BG-2S 7/9/2015 50 U 650 0.1 U 0.1 U 13 25 0.2 U 0.2 U 0.1 J 0.11 J BG-2D 7/9/2015 50 U 72 0.52 0.097 J 11 12 0.2 U 0.2 U 1.4 1.4 BG-2BR 7/9/2015 50 U 83 0.1 U 0.056 J 5 U 2.7 J 0.2 U 0.2 U 8.8 8.8 BG-3S 7/18/2015 50 U 50 U 0.095 J+ 0.066 J 26 29 0.2 U 0.2 U 0.5 U 0.5 U BG-31D 7/18/2015 50 U 1900 0.1 U 1.5 5.5 70 0.2 U 0.2 U 1 0.78 MW-202S 7/16/2015 50 U 68 0.1 U 0.1 U 2.6 J 3.2 J 0.2 U 0.2 U 0.5 U 0.5 U MW-202D 7/16/2015 50 U 72 0.1 U 0.067 J 5 U 2.9 J 0.2 U 0.2 U 0.29 J 0.31 J MW-202BR 7/16/2015 50 U 78 0.07 J+ 0.068 J 10 9.8 0.2 U 0.2 U 3.7 3.7 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 'NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 3 of 6 Table 10-5. Groundwater Sample Results - Background - Total and Dissolved Analyte Nickel Nickel Selenium Selenium Strontium Strontium Thallium Thallium Vanadium Vanadium CAS RN 7440-02-0 7440-02-0 7782-49-2 7782-49-2 7440-24-6 7440-24-6 7440-28-0 7440-28-0 7440-62-2 7440-62-2 Fraction D T D T D T D T D T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD 100 100 20 20 NS NS NS NS NS NS IMAC* NS NS NS NS NS NS 0.2 0.2 0.3 0.3 Sample Name Sample Date BG-1 D 7/14/2015 3.4 3.5 0.5 U 0.5 U 32 49 0.043 J 0.024 J 0.29 J 0.75 J BG-2S 7/9/2015 0.96 J+ 0.92 J+ 0.5 U 0.5 U 18 18 0.025 J 0.1 U 1 U 0.31 J BG-2D 7/9/2015 0.66 J+ 1.5 J+ 0.5 U 0.5 U 38 40 0.1 U 0.1 U 1.2 1.4 BG-2BR 7/9/2015 0.63 J+ 1.7 J+ 1.1 1.1 130 130 0.1 U 0.1 U 7.2 7.4 BG-3S 7/18/2015 0.7 0.94 J+ 0.5 U 0.5 U 24 25 0.039 J 0.048 J+ 0.48 J+ 1 U BG-31D 7/18/2015 0.24 J 1.1 J+ 0.5 U 0.24 J 21 70 0.1 U 0.1 U 1.2 J+ 0.94 J MW-202S 7/16/2015 0.18 J+ 0.3 J+ 0.5 U 0.5 U 9.3 9.1 0.1 U 0.1 U 1 U 1 U MW-202D 7/16/2015 1.2 J+ 1.1 J+ 0.5 U 0.5 U 39 37 0.1 U 0.1 U 1 U 1 U MW-202BR 7/16/2015 0.68 J+ 0.83 0.48 J 0.44 J 110 100 0.021 J 0.1 U 1.8 2.3 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 'NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 4 of 6 Table 10-5. Groundwater Sample Results - Background - Total and Dissolved Analyte Zinc Zinc Alkalinity, HCO3 Alkalinity, CO3 Alkalinity, lab Calcium Chloride Magnesium Methane Nitrogen, NO2 plus N 03 CAS RN 7440-66-6 7440-66-6 ALK-HCO3 ALK-0O3 ALK-LAB 7440-70-2 16887-00-6 7439-95-4 74-82-8 NO2-NO3 Fraction D T N N N T N T N N Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD 1000 1000 NS NS NS NS 250000 NS NS NS IMAC* NS NS NS NS NS NS NS NS NS NS Sample Name Sample Date BG-1 D 7/14/2015 10 U 7.7 J+ 23800 5000 U 23800 J- 5410 7800 2200 24.3 830 BG-2S 7/9/2015 10 U 7.3 J 13400 5000 U 13400 1920 2000 1280 1.8 J+ 420 BG-2D 7/9/2015 12 J+ 5.8 J 47200 5000 U 47200 11400 9700 5960 2.6 J+ 650 BG-2BR 7/9/2015 3.7 J+ 2.7 J 59600 4600 J 64100 26600 6600 2550 1.6 J+ 95 BG-3S 7/18/2015 15 J+ 6.9 J 6800 5000 U 6800 2080 2900 1310 0.85 J+ 3100 BG-31D 7/18/2015 6 J+ 8.1 J 24300 5000 U 24300 6570 4600 2490 1.2 J+ 1900 MW-202S 7/16/2015 3 J 2.8 J 14000 5000 U 14000 1040 1200 474 1.4 J+ 46 J+ MW-202D 7/16/2015 6 J 4.8 J 28900 5000 U 28900 3930 2000 1800 1.3 J+ 160 J+ MW-202BR 7/16/2015 30 13 77600 5000 U 77600 19100 2900 3100 1.2 J+ 150 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 'NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 5 of 6 Table 10-5. Groundwater Sample Results - Background - Total and Dissolved Analyte Potassium Sodium Sulfate Sulfide Total Organic Carbon Total Dissolved Solids Total Suspended Solids CAS RN 7440-09-7 7440-23-5 14808-79-8 18496-25-8 TOC TDS TSS Fraction T T N N N N N Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD NS NS 250000 NS NS 500000 NS IMAC* NS NS NS NS NS NS NS Sample Name Sample Date BG-1 D 7/14/2015 3300 J 11500 10500 100 U 660 J 88000 20900 BG-2S 7/9/2015 5000 U 3510 J 1000 U 100 U 1000 U 57000 95600 BG-2D 7/9/2015 5000 U 7540 3200 100 U 1000 U 107000 5900 BG-2BR 7/9/2015 11100 9810 23400 100 U 970 J 149000 7200 BG-3S 7/18/2015 5000 U 4770 J 1000 U 100 U 1000 U 57000 8600 BG-31D 7/18/2015 5000 U 14400 920 J 100 U 1000 U 173000 33100 MW-202S 7/16/2015 5000 U 5300 1000 U 100 U 1000 U 41000 2500 U MW-202D 7/16/2015 5000 U 7980 1200 100 U 10900 71000 5600 U MW-202BR 7/16/2015 5150 12000 9600 100 U 670 J 133000 2700 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 'NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 6 of 6 Table 10-6. Groundwater Sample Results - Total and Dissolved Analyte Aluminum Aluminum Antimony Antimony Arsenic Arsenic Barium Barium Beryllium Beryllium Boron Boron CAS RN 7429-90-5 7429-90-5 7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-39-3 7440-39-3 7440-41-7 7440-41-7 7440-42-8 7440-42-8 Fraction D T D T D T D T D T D T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD NS NS NS NS 10 10 700 700 NS NS 700 700 IMAC" NS NS 1 1 NS NS NS NS 4 4 NS NS Sample Name Sample Date AB-1 S 7/10/2015 54 J 9600 0.5 U 0.5 U 1.2 39 76 100 0.2 U 0.31 13100 12700 AB-1 D 7/10/2015 83 J 1200 0.5 U 0.5 U 2.2 3.4 170 190 0.7 0.9 13200 J+ 12800 J- AB-2S 7/15/2015 2500 3300 21.4 8.1 7.2 6.8 6.9 9.8 0.1 J 0.17 J 250 J+ 200 AB-2D 7/15/2015 86 J 260 1.5 0.75 1.1 J+ 0.9 71 74 0.68 0.35 14900 11400 AB-3S 7/11/2015 100 U 270 0.5 U 0.5 U 0.48 J 0.76 140 140 0.068 J 0.071 J 13300 13200 AB-3D 7/10/2015 100 U 130 0.5 U 0.5 U 6.3 6.6 15 14 0.2 U 0.2 U 2500 2400 AB-4D 7/16/2015 100 U 79 J 2.3 1 2.5 3.1 25 22 0.27 0.12 J 120 130 AB-4BR 7/16/2015 500 1100 2.6 0.71 0.58 0.65 26 24 0.2 U 0.2 U 38 J 54 AB-5D 7/14/2015 100 U 1300 0.56 0.66 6.6 8.5 18 35 0.2 U 0.21 49 J 52 AB-6D 7/8/2015 100 U 66 J 0.5 U 0.16 J 0.13 J 0.12 J 20 22 0.2 U 0.2 U 50 U 50 U AB-7D 6/16/2015 495 J 533 0.5 UJ 0.5 U 0.5 UJ 0.56 12 J+ 12 0.2 UJ 0.2 U 50 U 54 AB-8D 6/17/2015 100 U 420 0.19 J 0.18 J 2.1 2.1 13 14 0.2 U 0.2 U 63 J+ 42 J AB-9S 7/15/2015 51 J 110 0.8 J+ 0.42 J 0.17 J+ 0.5 U 58 63 0.2 U 0.069 J 30 J 51 AB-9D 7/16/2015 100 U 430 0.29 J+ 0.27 J+ 1.7 1.8 11 11 0.2 U 0.2 U 64 59 AB-9BR 7/16/2015 66 J 250 0.7 J+ 0.53 J+ 9.3 9.1 4.4 J 5.4 0.2 U 0.2 U 50 U 50 U GWA-10S 7/18/2015 690 700 0.5 U 0.5 U 3.5 5 260 260 1.3 1.4 49 J 46 J GWA-10D 7/18/2015 1100 1300 0.98 J+ 1.6 1.5 1.7 24 23 0.2 U 0.2 U 50 U 50 U GWA-11S 7/18/2015 100 U 170 0.5 U 0.5 U 1.1 1.3 500 490 6.9 6.6 170 160 GWA-11 D 7/18/2015 100 U 170 0.82 0.8 2 2.1 20 22 0.2 U 0.068 J 29 J 50 U GWA-12S 7/17/2015 100 U 1900 1.2 0.31 J 0.5 U 0.3 J 16 50 0.2 U 0.17 J+ 50 U 50 UJ GWA-12D 7/17/2015 100 U 210 0.91 0.33 J 0.42 J 0.38 J 21 27 0.081 J 0.087 J+ 46 J 37 J GWA-12BR 7/17/2015 100 U 170 0.52 0.65 0.93 1.1 5 U 3.1 J 0.094 J 0.48 J+ 38 J 36 J GWA-16S 7/16/2015 100 U 330 0.2 J+ 0.25 J+ 0.5 U 0.5 U 56 57 0.071 J 0.2 U 50 U 50 U GWA-16D 7/16/2015 770 810 1.6 J+ 1.5 J+ 1.8 2.1 38 40 0.2 U 0.2 U 50 U 50 U GWA-17S 7/15/2015 100 U 400 0.5 U 0.5 U 0.14 J+ 0.16 J 20 25 0.2 U 0.2 U 50 U 50 U GWA-17D 7/15/2015 150 190 0.22 J+ 0.19 J 0.76 J+ 0.8 7.2 7.6 0.2 U 0.2 U 50 U 50 U GWA-1 S 7/12/2015 340 760 0.5 U 0.5 U 0.25 J 0.49 J 340 340 6.3 6 440 430 GWA-1 D 7/12/2015 150 580 0.62 0.63 2.3 2.4 6.4 11 0.2 U 0.2 U 50 U 50 U GWA-2S 7/11/2015 100 U 1200 0.5 U 0.25 J 0.5 U 1.4 16 30 0.3 0.5 50 U 50 U GWA-2D 7/11/2015 100 U 130 0.16 J 0.5 U 4.9 4.6 6.5 8.6 0.2 U 0.085 J 37 J 37 J GWA-3D 7/15/2015 51 J 120 0.6 0.41 J+ 0.17 J+ 0.18 J 23 29 0.2 U 0.2 U 44 J 86 J+ GWA-4D 7/14/2015 100 U 130 1.7 1.8 1.4 1.4 19 22 0.2 U 0.2 U 31 J 46 J GWA-5S 7/14/2015 100 U 210 3 2.5 0.5 U 0.5 U 12 14 0.2 U 0.2 U 50 U 50 U GWA-5D 7/13/2015 100 U 100 U 0.47 J+ 0.37 J 0.35 J 0.29 J 9.6 10 0.2 U 0.2 U 50 U 50 U GWA-5BR(2) 7/13/2015 100 U 75 J 1.5 J+ 1.3 1.2 1.2 5.2 5.7 0.2 U 0.2 U 45 J 45 J GWA-6S 7/16/2015 100 U 90 J 0.5 U 0.5 U 0.5 U 0.5 U 70 68 1.4 1.4 31 J 31 J GWA-6D 7/16/2015 100 U 390 0.5 U 0.17 J+ 0.66 0.84 25 27 0.2 U 0.2 U 50 U 50 U GWA-7S 7/15/2015 100 U 150 0.5 U 0.5 U 0.5 U 0.5 U 190 200 2.6 2.7 83 92 GWA-7D 7/15/2015 100 U 58 J 0.23 J+ 0.34 J 3.2 3.4 15 16 0.2 U 0.2 U 30 J 42 J GWA-8S 7/14/2015 100 U 100 U 0.62 J+ 0.62 J+ 0.12 J 0.17 J+ 69 72 0.14 J 0.22 80 73 GWA-8D 7/15/2015 100 UJ 450 1.1 J+ 0.65 0.33 J+ 0.46 J 7.5 J- 12 0.2 U 0.2 U 50 U 30 J GWA-9S 7/18/2015 100 U 1500 0.5 U 0.5 U 0.5 U 4.2 50 100 0.22 0.62 50 U 50 U GWA-9D 7/18/2015 100 U 100 U 0.22 J 0.18 J 0.5 U 0.17 J 3.5 J 4.4 J 0.2 U 0.2 U 50 U 50 U MW-102S 6/17/2015 250 270 0.5 U 0.5 U 1.9 3.7 250 270 0.57 0.61 2500 2500 MW-102D 6/17/2015 100 U 130 0.5 U 0.5 U 0.18 J 0.24 J 5 U 5 U 0.2 U 0.093 J 9200 8800 MW-103S 7/12/2015 100 U 100 U 0.5 U 0.5 U 79.1 79.1 35 36 0.2 U 0.2 U 480 490 MW-103D 7/12/2015 66 J 110 0.5 U 0.5 U 4 7.5 390 450 2.9 4.4 1000 980 MW-200S 7/14/2015 460 3400 0.5 U 0.5 U 3.5 5.7 25 35 0.23 0.32 50 U 50 U MW-200D 7/14/2015 100 U 71 J 0.5 U 0.5 U 0.9 1.1 4.8 J 5.2 0.2 U 0.2 U 550 590 MW-200BR 7/14/2015 100 U 100 U 0.5 U 0.5 U 1.9 1.7 5 U 5 U 0.13 J 0.11 J 67 68 MW-201 D 7/18/2015 100 U 440 0.5 U 0.5 U 0.5 U 0.5 U 4.3 J 6.3 0.2 U 0.2 U 50 U 50 U Belews Creek Steam Station Page 1 of 10 Table 10-6. Groundwater Sample Results - Total and Dissolved Analyte Aluminum Aluminum Antimony Antimony Arsenic Arsenic Barium Barium Beryllium Beryllium Boron Boron CAS RN 7429-90-5 7429-90-5 7440-36-0 7440-36-0 7440-38-2 7440-38-2 7440-39-3 7440-39-3 7440-41-7 7440-41-7 7440-42-8 7440-42-8 Fraction D T D T D T D T D T D T Result Unit ug/1 ug/I ug/I ug/1 ug/I ug/I ug/I ug/1 ug/I ug/1 ug/I ug/1 15A NCAC 02L STANDARD NS NS NS NS 10 10 700 700 NS NS 700 700 IMAC* NS NS 1 1 NS NS NS NS 4 4 NS NS Sample Name Sample Date MW-203S 7/18/2015 100 U 68 J 0.19 J 0.26 J 0.5 U 0.5 U 45 47 0.12 J 0.13 J 50 U 50 U MW-203D 7/18/2015 100 U 290 0.48 J 0.28 J 0.5 U 0A9 J 6.6 9.1 0.2 U 0.2 U 50 U 50 U MW-203BR 7/18/2015 1 100 U 1 300 1 0.24 J 1 0.18 J 1 0.23 J 1 0.41 J 3.8 J 1 8 1 0.2 U 0.068 J 50 U 50 U MW-204S 7/18/2015 1 100 U 1 88 J 1 0.5 U 1 0.5 U 1 0.17 J 1 0.15 J 130 1 130 1 0.07 J 0.084 J 50 U 50 U MW-204D 1 7/18/2015 1 100 U 1 120 1 0.5 UJ 1 0.22 J 1 0.5 U 1 0.5 U 1 31 1 32 1 0.2 U 1 0.2 U 1 50 U 1 50 U General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 2 of 10 Table 10-6. Groundwater Sample Results - Total and Dissolved Analyte Cadmium Cadmium Chromium Chromium Cobalt Cobalt Copper Copper Iron Iron Lead Lead CAS RN 7440-43-9 7440-43-9 7440-47-3 7440-47-3 7440-48-4 7440-48-4 7440-50-8 7440-50-8 7439-89-6 7439-89-6 7439-92-1 7439-92-1 Fraction D T D T D T D T D T D T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD 2 2 10 10 NS NS 1000 1000 300 300 15 15 IMAC" NS NS NS NS 1 1 NS NS NS NS NS NS Sample Name Sample Date AB-1 S 7/10/2015 0.08 U 0.045 J 12.8 39.7 31.7 41 0.35 J+ 2.7 130 12800 0.1 U 2.6 AB-1 D 7/10/2015 0.24 0.29 0.4 J 3.4 40.4 40.9 0.25 J+ 2 91 1600 0.066 J 0.79 AB-2S 7/15/2015 0.08 U 0.04 J 14 19.4 0.16 J 0.37 J 5.1 12.3 50 U 510 J+ 0.1 U 0.28 AB-2D 7/15/2015 0.52 0.6 1.1 J+ 1.1 J+ 109 108 12.4 6.7 110 420 J+ 0.19 0.19 AB-3S 7/11/2015 0.045 J 0.046 J 3 5.8 10.9 11.3 0.46 J+ 0.52 J 50 U 320 0.052 J 0.22 AB-3D 7/10/2015 0.08 U 0.08 U 0.39 J 1.9 1.8 2.1 0.33 J+ 0.61 J 50 U 280 0.049 J 0.37 AB-41) 7/16/2015 0.053 J 0.035 J 0.69 J+ 1.6 J+ 0.32 J 0.22 J 28.1 J+ 38.6 170 170 0.06 J+ 0.79 AB-4BR 7/16/2015 0.08 U 0.08 U 8.3 J+ 2.6 0.5 U 0.5 U 1.8 J+ 1 U 50 U 89 0.1 U 0.051 J AB-5D 7/14/2015 0.08 U 0.054 J 0.6 3.5 0.14 J 1.1 0.43 J 2.9 44 J 1100 0.1 U 2.3 AB-6D 7/8/2015 0.08 U 0.08 U 0.52 J+ 0.58 J+ 0.32 J 0.38 J 1 U 0.45 J 50 U 84 0.1 U 0.1 U AB-7D 6/16/2015 0.08 UJ 0.08 U 0.39 J+ 0.47 J 0.5 UJ 0.5 U 8.4 J+ 0.28 J 27.3 J 130 0.1 UJ 0.053 J AB-8D 6/17/2015 0.08 U 0.08 U 0.4 J+ 0.96 1.2 1.2 1 U 1 U 66 160 0.1 U 0.14 AB-9S 7/15/2015 0.041 J 0.051 J 0.32 J+ 0.24 J+ 17.9 21.4 1.5 0.32 J 50 U 120 J+ 0.1 U 0.065 J+ AB-9D 7/16/2015 0.08 U 0.08 U 0.46 J+ 1.2 J+ 0.64 0.86 1 U 0.61 J 270 700 0.1 U 0.28 AB-9BR 7/16/2015 0.08 U 0.08 U 0.18 J+ 0.85 J+ 0.5 U 0.26 J 0.28 J 0.63 J 50 U 290 0.1 U 0.11 GWA-10S 7/18/2015 0.14 0.14 0.54 J+ 1.4 J+ 30.6 30.4 8.3 J+ 1.4 J+ 50 U 35 J 1.8 J+ 1.2 GWA-10D 7/18/2015 0.08 U 0.08 U 1.3 J+ 1 J+ 0.5 U 0.5 UJ 2.1 J+ 0.94 J+ 50 U 50 UJ 0.074 J+ 0.062 J GWA-11 S 7/18/2015 0.62 0.61 0.75 J+ 0.52 J+ 7.4 7.4 8.7 J+ 0.35 J+ 50 U 120 0.84 J+ 0.053 J GWA-11 D 7/18/2015 0.067 J 0.062 J 0.37 J+ 1.5 J+ 1.5 1.6 6.8 J+ 1 UJ 570 810 0.48 J+ 0.11 GWA-12S 7/17/2015 0.074 J 0.028 J+ 0.2 J+ 4.9 0.16 J 0.42 J 2.2 J+ 7.9 J+ 50 U 1900 0.1 UJ 1.1 J+ GWA-12D 7/17/2015 0.046 J 0.049 J+ 0.26 J+ 1.3 J+ 0.65 1 1.4 J+ 4.9 J+ 50 U 210 0.1 U 0.6 J+ GWA-12BR 7/17/2015 0.08 U 0.12 J+ 0.51 J+ 1.4 J+ 0.5 U 0.32 J 7.4 J+ 27.2 50 U 220 0.77 J+ 0.28 J+ GWA-16S 7/16/2015 0.09 0.08 U 0.48 J+ 6 5.5 5.6 0.85 J+ 0.89 J+ 50 U 610 0.058 J+ 0.22 GWA-16D 7/16/2015 0.08 U 0.12 0.92 J+ 3.1 J+ 0.5 U 0.5 U 1.9 J+ 2.3 J+ 50 U 79 0.059 J+ 0.082 J GWA-17S 7/15/2015 0.08 U 0.08 U 0.23 J+ 50.7 1.4 2.6 1 U 1.4 510 1500 0.1 U 0.091 J+ GWA-17D 7/15/2015 0.08 U 0.08 U 0.2 J+ 0.73 J+ 0.5 U 0.5 U 1 U 0.43 J 50 U 39 J+ 0.051 J 0.1 U GWA-1S 7/12/2015 0.46 0.46 12.5 29.7 8.4 10 4.7 0.96 J 82 780 0.37 0.37 GWA-1 D 7/12/2015 0.2 0.2 1.3 4 1.4 1.6 1.6 1.1 140 620 0.16 0.46 GWA-2S 7/11/2015 0.08 U 0.08 U 0.46 J 2.5 1.2 2 0.82 J+ 0.62 J 50 U 1600 0.1 U 1.1 GWA-2D 7/11/2015 0.08 U 0.036 J 0.43 J 1.6 J+ 1 1.1 0.49 J+ 0.73 J 100 320 0.1 U 0.15 GWA-3D 7/15/2015 0.029 J 0.08 U 0.9 1 J+ 0.17 J 0.17 J 0.42 J 0.62 J 50 U 44 J 0.1 U 0.1 U GWA-4D 7/14/2015 0.25 0.3 4.4 6.2 0.5 U 0.5 UJ 3.6 4.5 50 U 120 0.083 J 0.13 GWA-5S 7/14/2015 0.046 J 0.044 J 2.9 4.4 0.74 0.79 2.5 1.5 50 U 260 0.1 U 0.12 GWA-5D 7/13/2015 0.081 0.035 J 0.47 J 1.9 J+ 0.42 J 0.46 J 2.1 0.68 J+ 50 U 50 U 0.13 0.071 J GWA-5BR(2) 7/13/2015 0.067 J 0.025 J 0.71 0.79 J+ 0.5 U 0.5 U 0.5 J 0.68 J+ 50 U 57 0.1 U 0.064 J GWA-6S 7/16/2015 0.6 0.59 0.44 J+ 0.95 J+ 2.4 2.5 0.38 J+ 0.25 J+ 50 U 86 0.1 U 0.064 J GWA-6D 7/16/2015 0.08 U 0.045 J 0.21 J+ 3.3 J+ 2.4 2.9 1 UJ 2 J+ 190 820 0.07 J+ 0.26 GWA-7S 7/15/2015 0.13 0.14 0.66 J+ 0.81 J+ 15.1 15.9 0.66 J 0.5 J 50 U 240 J+ 0.1 U 0.054 J+ GWA-7D 7/15/2015 0.026 J 0.14 1.3 J+ 1.7 J+ 0.5 U 0.5 U 0.36 J 3.7 50 U 37 J+ 0.1 U 0.1 U GWA-8S 7/14/2015 0.12 0.18 0.26 J+ 0.42 J+ 1.3 1.3 1 U 1 U 50 U 36 J+ 0.1 U 0.13 J+ GWA-8D 7/15/2015 0.08 U 0.08 U 0.3 J+ 1.1 J+ 0.2 J 0.38 J 1 U 0.53 J 320 J- 840 0.1 U 0.4 J+ GWA-9S 7/18/2015 0.071 J 0.15 0.64 J+ 3.6 2.6 6.8 3.1 J+ 3.3 50 U 2200 0.1 U 2.8 GWA-9D 7/18/2015 0.042 J 0.055 J 0.37 J+ 1.3 1.8 2.2 9.7 J+ 1.8 50 U 65 1 0.1 U MW-102S 6/17/2015 0.33 0.31 0.3 J+ 0.36 J 401 J+ 413 0.72 J 0.92 J 2200 2200 0.5 0.4 MW-102D 6/17/2015 0.033 J 0.04 J 0.39 J+ 0.49 J 0.95 1 0.54 J 0.6 J 430 910 0.1 U 0.58 MW-103S 7/12/2015 0.08 U 0.08 U 0.32 J 0.3 J 44.7 43.9 1.1 1 U 91700 92200 0.1 U 0.1 U MW-103D 7/12/2015 4.2 3.8 0.5 U 0.39 J+ 167 79.7 2 J+ 0.56 J 11600 11600 1.2 0.1 U MW-200S 7/14/2015 0.12 0.12 2.4 4.1 2.1 2.4 3.1 4.4 250 4300 1.4 2.3 MW-200D 7/14/2015 0.035 J 0.053 J 0.85 2.3 0.5 U 0.5 U 1.1 1 UJ 50 U 100 0.1 U 0.066 J MW-200BR 7/14/2015 0.08 U 0.08 U 0.27 J 0.23 J 0.5 U 0.5 U 1 U 1 U 180 190 0.1 U 0.1 U MW-201 D 7/18/2015 0.08 U 0.08 U 2.3 J+ 10.3 0.5 U 0.33 J 0.43 J+ 2 J+ 50 U 630 0.1 U 0.29 Belews Creek Steam Station Page 3 of 10 Table 10-6. Groundwater Sample Results - Total and Dissolved Analyte Cadmium Cadmium Chromium Chromium Cobalt Cobalt Copper Copper Iron Iron Lead Lead CAS RN 7440-43-9 7440-43-9 7440-47-3 7440-47-3 7440-48-4 7440-48-4 7440-50-8 7440-50-8 7439-89-6 7439-89-6 7439-92-1 7439-92-1 Fraction D T D T D T D T D T D T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD 2 2 10 10 NS NS 1000 1000 300 300 15 15 IMAC* NS NS NS NS 1 1 NS NS NS NS NS NS Sample Name Sample Date MW-203S 7/18/2015 0.08 U 0.041 J 0.53 J+ 2 J+ 0.5 U 0.5 U 2 J+ 0.24 J+ 50 U 74 0.22 J+ 0.23 J+ MW-203D 7/18/2015 0.08 U 0.08 U 1.6 J+ 3 J+ 0.5 U 0.27 J 0.36 J+ 1.6 J+ 50 U 690 0.1 U 0.35 J+ MW-203BR 7/18/2015 1 0.031 J 1 0.035 J 1 0.76 J+ 1 3.1 0.5 U 0.24 J 8.7 J+ 0.98 J 50 U 1 240 1 1.1 0.53 MW-204S 7/18/2015 1 0.11 1 0.11 1 1.8 J+ 1 9.2 17.8 16.5 1.2 J+ 1.7 J+ 1700 1800 0.1 U 0.067 J MW-204D 1 7/18/2015 1 0.035 J 1 0.036 J 1 0.35 J+ 1 2 J+ 1 6.1 1 5.7 1 1.2 J+ 1 1.2 J+ 1 35 J 290 0.1 U 0.098 J General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 4 of 10 Table 10-6. Groundwater Sample Results - Total and Dissolved Analyte Manganese Manganese Mercury Mercury Molybdenum Molybdenum Nickel Nickel Selenium Selenium Strontium Strontium CAS RN 7439-96-5 7439-96-5 7439-97-6 7439-97-6 7439-98-7 7439-98-7 7440-02-0 7440-02-0 7782-49-2 7782-49-2 7440-24-6 7440-24-6 Fraction D T D T D T D T D T D T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD 50 50 1 1 NS NS 100 100 20 20 NS NS IMAC" NS NS NS NS NS NS NS NS NS NS NS NS Sample Name Sample Date AB-1 S 7/10/2015 2300 2500 0.2 U 0.093 J+ 0.29 J 0.55 23.7 28.9 0.63 0.74 770 790 AB-1 D 7/10/2015 2200 J- 2300 0.2 U 0.12 J+ 0.35 J 0.45 J 8.9 10.6 1.1 1.2 660 700 AB-2S 7/15/2015 4.4 J 15 0.2 U 0.2 U 13.3 16.7 0.26 J 0.63 J+ 1.1 1.3 63 69 AB-2D 7/15/2015 20200 14800 0.2 U 0.2 U 0.65 0.68 J+ 30.1 29.6 0.68 0.28 J 890 940 AB-3S 7/11/2015 4300 4000 0.2 U 0.2 U 3.7 3.8 3.2 3.7 0.4 J 0.38 J 750 750 AB-3D 7/10/2015 28 35 0.2 U 0.079 J+ 5.5 5.4 2 3.2 0.5 U 0.5 U 410 420 AB-4D 7/16/2015 44 29 0.2 U 0.2 U 5.1 5.3 1.2 J+ 0.93 J+ 1.1 0.99 110 110 AB-4BR 7/16/2015 5 U 5 U 0.2 U 0.2 U 14.7 9.8 0.21 J+ 0.34 J 0.67 0.35 J 290 330 AB-5D 7/14/2015 93 120 0.2 U 0.2 U 7.9 7.5 0.7 2.2 0.53 0.82 80 94 AB-6D 7/8/2015 100 110 0.2 U 0.2 U 1.8 1.8 1.2 J+ 1.5 J+ 0.68 J+ 0.23 J 64 68 AB-7D 6/16/2015 11 J+ 11 NA 0.00115 3.2 J+ 3.2 0.43 J+ 0.21 J 0.4 J+ 0.42 J 95 87 AB-8D 6/17/2015 120 130 0.2 U 0.081 J+ 0.86 0.77 2.8 3 J+ 0.29 J 0.49 J 70 72 AB-9S 7/15/2015 590 720 0.2 U 0.2 U 0.5 U 0.5 U 1.6 2.7 0.5 U 0.5 U 6.8 7.3 AB-9D 7/16/2015 160 150 0.16 J 0.2 U 3.3 2.8 0.81 1 0.5 U 0.5 U 100 95 AB-9BR 7/16/2015 21 91 0.16 J 0.2 U 7.6 6.6 0.22 J 0.5 UJ 0.5 U 0.5 U 180 150 GWA-10S 7/18/2015 810 800 0.25 0.47 0.5 U 0.12 J 7.6 7.8 2.3 10.6 15 15 GWA-10D 7/18/2015 5 U 5 U 0.2 U 0.2 U 6.4 5.5 0.6 J+ 0.71 0.46 J 0.38 J 570 560 GWA-11S 7/18/2015 330 320 0.2 U 0.2 U 0.5 U 0.5 U 13.8 13.5 0.5 U 0.52 480 460 GWA-11 D 7/18/2015 180 190 0.2 U 0.2 U 2.3 2.3 12.2 13 0.5 U 0.5 U 270 280 GWA-12S 7/17/2015 130 220 0.11 J 0.2 U 0.41 J 0.51 0.84 J+ 1.6 J+ 0.5 U 0.5 U 33 53 GWA-12D 7/17/2015 250 330 0.2 U 0.2 U 4.8 3.4 1.2 J+ 1.5 J+ 0.5 U 0.5 U 55 49 GWA-12BR 7/17/2015 44 48 0.2 U 0.2 U 7.6 8.1 1.2 J+ 1.9 0.5 U 0.5 U 43 43 GWA-16S 7/16/2015 140 130 0.2 U 0.2 U 0.5 U 0.17 J 3.6 5.7 0.5 U 0.5 U 16 15 GWA-16D 7/16/2015 5 U 5 U 0.2 U 0.2 U 8.4 8.9 0.69 J+ 1.7 J+ 0.4 J 0.53 580 570 GWA-17S 7/15/2015 380 430 0.2 U 0.2 U 5.8 5.9 14.5 28.7 0.5 U 0.5 U 22 23 GWA-17D 7/15/2015 5 U 5 U 0.2 U 0.2 U 1.4 1.5 0.5 U 0.36 J 0.5 U 0.5 U 75 79 GWA-1S 7/12/2015 350 390 0.2 U 0.075 J+ 0.26 J 0.55 35.8 45.2 0.5 U 0.5 U 180 180 GWA-1 D 7/12/2015 21 25 0.2 U 0.2 U 5.2 5.2 8.2 8.6 0.5 U 0.5 U 66 70 GWA-2S 7/11/2015 51 84 0.2 U 0.12 J+ 0.5 U 0.14 J 1.3 3.3 0.5 U 0.5 U 5.5 5.7 GWA-2D 7/11/2015 96 96 0.2 U 0.11 J+ 3.6 3.5 1.4 2.2 0.5 U 0.5 U 35 41 GWA-3D 7/15/2015 19 17 0.2 U 0.2 U 0.24 J 0.31 J 0.45 J 0.57 J+ 0.5 U 0.5 U 150 230 GWA-4D 7/14/2015 6.9 8.9 0.2 U 0.2 U 1.8 2.2 0.88 1 0.24 J 0.29 J 180 190 GWA-5S 7/14/2015 400 420 0.2 U 0.2 U 0.27 J 0.38 J 3.5 3.1 0.5 U 0.5 U 79 82 GWA-5D 7/13/2015 970 1100 0.2 U 0.2 U 12.8 12.3 1.2 1.5 J+ 0.5 U 0.5 U 150 160 GWA-5BR(2) 7/13/2015 3.9 J 4.3 J 0.2 U 0.2 U 36.5 38.3 0.42 J 0.27 J+ 0.42 J 0.38 J 84 90 GWA-6S 7/16/2015 600 540 0.2 U 0.2 U 0.5 U 0.5 U 3.2 J+ 3.5 0.5 U 0.5 U 25 25 GWA-6D 7/16/2015 170 160 0.2 U 0.2 U 1.8 2.6 2.5 J+ 4.3 0.5 U 0.5 U 77 78 GWA-7S 7/15/2015 220 240 0.2 U 0.2 U 0.5 U 0.5 U 9.6 10.3 0.5 U 0.5 U 30 31 GWA-7D 7/15/2015 5 U 5 U 0.2 U 0.2 U 2.8 3 0.5 U 0.34 J 0.47 J 0.55 190 190 GWA-8S 7/14/2015 590 600 0.2 U 0.2 U 0.49 J 0.55 0.82 0.92 J+ 3.8 3.6 250 250 GWA-8D 7/15/2015 41 J- 49 0.2 U 0.2 U 1.7 1.9 0.45 J 0.77 0.5 U 0.5 U 55 J- 58 GWA-9S 7/18/2015 90 180 0.12 J+ 0.2 U 0.5 U 0.26 J 1.1 J+ 3.5 0.5 U 0.5 U 6 J+ 6.6 GWA-9D 7/18/2015 20 23 0.2 U 0.2 U 0.76 0.86 1.1 J+ 1.3 0.5 U 0.5 UJ 43 45 MW-102S 6/17/2015 20800 21300 0.2 U 0.11 J+ 0.5 U 0.5 U 30.2 32.4 0.77 4.7 190 200 MW-102D 6/17/2015 2400 2500 0.2 U 0.2 U 0.42 J 0.31 J 3.4 3.5 J+ 0.5 U 0.5 U 830 860 MW-103S 7/12/2015 9200 9200 0.2 U 0.2 U 0.2 J 0.19 J 1.4 1.3 0.5 U 0.5 U 52 56 MW-103D 7/12/2015 17500 14500 0.2 U 0.2 U 0.5 U 0.5 U 69.1 47.9 0.5 U 0.5 U 410 410 MW-200S 7/14/2015 330 300 0.2 U 0.2 U 0.19 J 0.26 J 2.2 3.1 0.5 U 0.22 J 35 40 MW-200D 7/14/2015 13 20 0.2 U 0.2 U 0.87 1.1 0.49 J 0.62 0.5 U 0.5 U 190 200 MW-200BR 7/14/2015 110 110 0.2 U 0.2 U 0.45 J 0.42 J 0.5 U 0.5 U 0.5 U 0.5 U 170 170 MW-201 D 7/18/2015 4 J 15 0.2 U 0.2 U 0.79 0.78 3.6 7.6 0.5 U 0.5 U 57 58 Belews Creek Steam Station Page 5 of 10 Table 10-6. Groundwater Sample Results - Total and Dissolved Analyte Manganese Manganese Mercury Mercury Molybdenum Molybdenum Nickel Nickel Selenium Selenium Strontium Strontium CAS RN 7439-96-5 7439-96-5 7439-97-6 7439-97-6 7439-98-7 7439-98-7 7440-02-0 7440-02-0 7782-49-2 7782-49-2 7440-24-6 7440-24-6 Fraction D T D T D T D T D T D T Result Unit ug/I ug/I ug/I ug/1 ug/I ug/I ug/l ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD 50 50 1 1 NS NS 100 100 20 20 NS NS IMAC* NS NS NS NS NS NS NS NS NS NS NS NS Sample Name Sample Date MW-203S 7/18/2015 3.8 J 7.6 0.2 U 0.2 U 0.5 U 0.5 U 0.63 J+ 1.5 J+ 0.5 U 0.5 U 25 J+ 31 MW-203D 7/18/2015 3.4 J 20 0.2 U 0.2 U 1.5 1.6 0.36 J+ 0.84 J+ 0.5 U 0.5 U 34 35 MW-203BR 7/18/2015 1 19 1 24 1 0.2 U 1 0.2 U 1 3.3 3.3 1 0.62 J+ 1.5 1 0.5 U 0.5 U 1 40 1 45 MW-204S 7/18/2015 570 550 0.2 U 0.2 U 0.32 J 0.3 J 9.8 8.2 0.5 U 0.5 U 13 13 MW-204D 1 7/18/2015 1 70 1 73 1 0.2 U 1 0.2 U 1 0.5 U 1 0.1 J 1 2 1 2.4 1 0.5 U 1 0.5 U 1 9.7 1 9.7 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 6 of 10 Table 10-6. Groundwater Sample Results - Total and Dissolved Analyte Thallium Thallium Vanadium Vanadium Zinc Zinc Alkalinity, HCO3 Alkalinity, CO3 Alkalinity, lab Calcium Chloride Magnesium CAS RN 7440-28-0 7440-28-0 7440-62-2 7440-62-2 7440-66-6 7440-66-6 ALK-HCO3 ALK-CO3 ALK-LAB 7440-70-2 16887-00-6 7439-95-4 Fraction D T D T D T N N N T N T Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD NS NS NS NS 1000 1000 NS NS NS NS 250000 NS IMAC" 0.2 0.2 0.3 0.3 NS NS NS NS NS NS NS NS Sample Name Sample Date ABAS 7/10/2015 0.22 0.31 1 U 2.5 4.1 J 30 J+ 9700 5000 U 9700 210000 470000 55000 ABA D 7/10/2015 0.3 0.42 1 U 2.5 9.7 J 14 J+ 8700 5000 U 8700 198000 504000 51900 AB-2S 7/15/2015 0.1 U 0.1 U 46.6 47.2 5.3 J+ 13 J+ 109000 77400 187000 71500 13900 63.1 J AB-2D 7/15/2015 0.35 0.4 0.5 J 1 U 54 33 23900 5000 U 23900 223000 541000 50000 AB-3S 7/11/2015 0.35 0.37 1 U 1 U 10 U 10 U 23200 5000 U 23200 211000 496000 57800 AB-3D 7/10/2015 0.04 J 0.043 J 0.53 J 0.7 J 3.6 J 5.9 J+ 92800 5000 U 92800 142000 307000 30200 AB-4D 7/16/2015 0.028 J 0.02 J 2.9 5 35 12 93600 5000 U 93600 19100 4300 4330 AB-4BR 7/16/2015 0.016 J 0.1 U 8 4.1 10 U 10 U 9700 11600 21300 79300 2400 2900 AB-5D 7/14/2015 0.1 U 0.052 J 4.7 9.9 10 U 8.3 J+ 70400 5000 U 70400 15600 2000 3080 AB-6D 7/8/2015 0.1 U 0.1 U 2.8 2.7 2.8 J 2.8 J 44700 5000 U 44700 11000 2400 J+ 3260 AB-7D 6/16/2015 0.1 UJ 0.1 U 6.6 J+ 7.9 10 UJ 10 U 60000 36000 99000 38100 4100 1330 AB-8D 6/17/2015 0.035 J 0.033 J 1.1 1.1 10 U 2.8 J+ 39000 10000 U 39000 8980 8500 2310 AB-9S 7/15/2015 0.11 J+ 0.13 1 U 0.33 J 5.8 J 7 J+ 9200 5000 U 9200 664 5300 900 AB-9D 7/16/2015 0.1 U 0.1 U 0.44 J 1.3 10 U 10 U 119000 5000 U 119000 33200 5400 7240 AB-9BR 7/16/2015 0.1 U 0.1 U 1 U 1 U 10 U 10 U 121000 1800 J 123000 39000 4400 7500 GWA-10S 7/18/2015 0.18 0.2 J 1 U 1 U 22 J+ 20 5000 U 5000 U 5000 U 1520 46500 5650 GWA-10D 7/18/2015 0.022 J 0.017 J+ 7.4 7.9 4.8 J+ 10 U 5000 U 155000 200000 68800 12800 575 GWA-11S 7/18/2015 0.27 0.3 1 U 1 U 43 38 19900 5000 U 19900 38700 175000 31100 GWA-11 D 7/18/2015 0.029 J 0.041 J+ 0.76 J+ 0.75 J 16 J+ 14 55900 5000 U 55900 58000 137000 16700 GWA-12S 7/17/2015 0.1 U 0.043 J+ 1 U 1.7 3.1 J+ 39 27900 5000 U 27900 4810 1600 1730 GWA-12D 7/17/2015 0.1 U 0.033 J+ 1.4 1.5 9.9 J+ 8.8 J 44400 5000 U 44400 7980 1800 2720 GWA-12BR 7/17/2015 0.1 U 0.12 J+ 0.75 J 1.2 6.5 J+ 20 64400 5000 U 64400 17000 2100 4430 GWA-16S 7/16/2015 0.051 J+ 0.054 J 1 U 0.64 J 9.1 J 8.5 J 10700 5000 U 10700 1380 670 J 1230 GWA-16D 7/16/2015 0.1 U 0.1 U 9.6 10.2 10 U 10 U 113000 57400 170000 26100 3000 305 GWA-17S 7/15/2015 0.028 J+ 0.1 U 1 U 1.8 10 U 14 J+ 32200 5000 U 32200 5200 1100 3350 GWA-17D 7/15/2015 0.021 J+ 0.1 U 2.8 3.4 10 U 10 U 12700 52000 64700 20000 1400 296 GWA-1S 7/12/2015 0.34 _ 0.34 1 U 0.29 J 19 21 1400 J 5000 U 1400 J 8680 127000 29200 GWA-1 D 7/12/2015 0.022 J 0.07 J 1.1 1.5 6.6 J 6.9 J 37200 5000 U 37200 9780 27300 4000 GWA-2S 7/11/2015 0.063 J 0.1 UJ 1 U 0.46 J 5.2 J 3.8 J 5700 5000 U 5700 401 1300 424 GWA-21D 7/11/2015 0.1 U 0.1 U 0.57 J 0.79 J 10 U 3.7 J 33300 5000 U 33300 5700 1600 2130 GWA-31D 7/15/2015 0.1 U 0.1 U 0.58 J 1 U 5.3 J 5.5 J+ 49400 5000 U 49400 J+ 13500 10900 1010 GWA-4D 7/14/2015 0.1 U 0.1 U 7.5 7.9 5.4 J 11 J+ 130000 5000 U 130000 34100 7300 2450 GWA-5S 7/14/2015 0.1 U 0.1 U 0.34 J 0.58 J 10 U 4.8 J+ 28900 5000 U 28900 7160 2200 1070 GWA-5D 7/13/2015 0.099 J+ 0.051 J+ 0.98 J 0.98 J 10 U 10 U 136000 5000 U 136000 30200 4800 5790 GWA-5BR(2) 7/13/2015 0.059 J+ 0.1 U 2.3 2.6 10 U 10 U 25800 16800 42600 18900 7100 1810 GWA-6S 7/16/2015 0.24 1 U 1 U 8.6 J 7.1 J 5700 5000 U 5700 3120 7100 2530 GWA-61D 7/16/2015 0.1 U 0.1 U 0.77 J 2.2 10 U 10 U 77100 5000 U 77100 16600 2400 5310 GWA-7S 7/15/2015 0.019 J+ 0.045 J 1 U 0.53 J 31 33 J+ 8500 5000 U 8500 2220 20900 5040 GWA-7D 7/15/2015 0.1 U 0.1 U 4 4.5 10 U 10 U 96200 10600 107000 31600 17800 5970 GWA-8S 7/14/2015 0.025 J 0.11 0.36 J 0.42 J+ 10 U 10 U 31200 5000 U 31200 18500 4100 3300 GWA-81D 7/15/2015 0.1 U 0.021 J 0.3 J 1.3 10 U 2.7 J+ 51300 5000 U 51300 13300 4900 3300 GWA-9S 7/18/2015 0.094 J 0.23 1 U 7.2 7 J+ 13 6700 5000 U 6700 1070 1300 652 GWA-91D 7/18/2015 0.1 U 0.1 U 0.44 J 1 5.9 J+ 5.2 J 34400 5000 U 34400 10100 5900 3440 MW-102S 6/17/2015 0.4 0.3 1 U 1 U 46 48 10000 U 10000 U 10000 U 60200 247000 30700 MW-102D 6/17/2015 0.1 U 0.1 U 0.39 J 1 U 11 6.8 J+ 76000 10000 U 77000 230000 407000 39700 MW-103S 7/12/2015 0.16 0.16 1 U 1 U 4.5 J 10 U 10500 5000 U 10500 13100 204000 28300 MW-103D 7/12/2015 3.9 3.6 1 U 1 U 30 21 7900 5000 U 7900 36000 280000 45400 MW-200S 7/14/2015 0.06 J 0.062 J 5 8.3 10 U 4.5 J+ 13300 5000 U 13300 5860 11200 1 1800 MW-200D 7/14/2015 0.043 J 0.037 J 0.32 J 0.32 J 10 U 7.8 J+ 64900 5000 U 64900 48100 83500 11800 MW-200BR 7/14/2015 0.1 U 0.1 U 1 U 1 U 10 U 3 J+ 124000 5000 U 124000 52500 35400 6690 MW-201 D 7/18/2015 0.1 U 0.1 U 0.95 J+ 1.6 2.7 J+ 3.3 J 65900 5000 U 65900 15200 3200 5840 Belews Creek Steam Station Page 7 of 10 Table 10-6. Groundwater Sample Results - Total and Dissolved Analyte Thallium Thallium Vanadium Vanadium Zinc Zinc Alkalinity, HCO3 Alkalinity, CO3 Alkalinity, lab Calcium Chloride Magnesium CAS RN 7440-28-0 7440-28-0 7440-62-2 7440-62-2 7440-66-6 7440-66-6 ALK-HCO3 ALK-0O3 ALK-LAB 7440-70-2 16887-00-6 7439-95-4 Fraction D T D T D T N N N T N T Result Unit ug/I ug/I ug/I ug/1 ug/I ug/I ug/I ug/I ug/I ug/I ug/l ug/I 15A NCAC 02L STANDARD NS NS NS NS 1000 1000 NS NS NS NS 250000 NS IMAC* 0.2 0.2 0.3 0.3 NS NS NS NS NS NS NS NS Sample Name Sample Date MW-203S 7/18/2015 0.03 J+ 0.036 J+ 1 U 0.72 J 16 J+ 4.7 J+ 9000 5000 U 9000 3220 2100 586 MW-203D 7/18/2015 0.1 U 0.1 U 3.4 J+ 5 3 J+ 11 41600 5000 U 41600 7570 1800 3860 MW-203BR 7/18/2015 1 0.1 LI 1 0.1 U 1 2.8 3.9 4.5 J+ 4.4 J 1 54700 5000 Ll 1 54700 1 11600 1 3100 1 5100 MW-204S 7/18/2015 1 0.09 J 1 0.11 J+ 1 U 1 U 15 J+ 9.5 J 14500 5000 U 14500 1380 2300 1490 MW-204D 1 7/18/2015 1 0.049 J 1 0.053 J+ 0.53 J+ 1 U 5.3 J+ 6.2 J 11200 5000 U 11200 1440 1200 1200 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 8 of 10 Table 10-6. Groundwater Sample Results - Total and Dissolved Analyte Methane Nitrogen, NO2 plus NO3 Potassium Sodium Sulfate Sulfide Total Organic Carbon Total Dissolved Solids Total Suspended Solids CAS RN 74-82-8 NO2-NO3 7440-09-7 7440-23-5 14808-79-8 18496-25-8 TOC TDS TSS Fraction N N T T N N N N N Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I 15A NCAC 02L STANDARD NS NS NS NS 250000 NS NS 500000 NS IMAC" NS NS NS NS NS NS NS NS NS Sample Name Sample Date ABAS 7/10/2015 8.8 J+ 20 U 4230 J 8840 121000 100 U 900 J 1400000 159000 ABA D 7/10/2015 5.9 J+ 20 U 4510 J 10500 111000 100 U 810 J 1390000 99700 AB-2S 7/15/2015 399 20 UJ 5000 U 19400 38500 100 U 1500 283000 14700 AB-2D 7/15/2015 28.9 20 UJ 5960 14400 86100 100 U 1200 1140000 7400 AB-3S 7/11/2015 6.7 J+ 20 U 7770 11100 132000 100 UJ 1000 UJ 1430000 19600 AB-3D 7/10/2015 7.6 J+ 20 U 4360 J 21100 26800 100 U 1200 1100000 41000 AB-4D 7/16/2015 2.6 J+ 110 2700 J 17600 7900 100 U 980 J 148000 6100 AB-4BR 7/16/2015 1.3 J+ 93 7480 12400 5800 100 U 1100 248000 66900 AB-5D 7/14/2015 10 U 20 U 2690 J 13400 8100 100 U 580 J 154000 103000 AB-6D 7/8/2015 3.2 J+ 20 U 5000 U 8650 9700 100 U 1000 U 106000 5100 AB-7D 6/16/2015 10 U 20 U 3340 J 9740 9600 100 U 4900 154000 2800 AB-8D 6/17/2015 10 U 20 U 5000 U 8450 780 J 500 U 1000 U 108000 22300 AB-9S 7/15/2015 2 J+ 260 J- 5000 U 4630 J 440 J 100 U 20000 28000 3400 AB-9D 7/16/2015 48.1 13 J+ 2770 J 10600 10000 100 U 1100 182000 19500 AB-96R 7/16/2015 209 20 U 3480 J 7540 11800 100 U 1000 U 173000 7000 GWA-10S 7/18/2015 1.2 J+ 270 3540 J 11500 1000 U 100 U 1000 U 138000 29400 GWA-10D 7/18/2015 2.1 J+ 200 19300 15300 2700 100 U 980 J 265000 18600 GWA-11S 7/18/2015 1 J+ 270 6690 22600 660 J 100 U 1000 U 4 6300 GWA-11 D 7/18/2015 10 U 170 9180 18000 5000 100 U 11100 Wism_ 2600 GWA-12S 7/17/2015 10 U 220 3170 J 5820 1400 100 U 810 J 87000 48500 GWA-12D 7/17/2015 3.7 J+ 20 U 2660 J 8020 2000 100 U 590 J 94000 7200 GWA-12BR 7/17/2015 1.1 J+ 20 U 2520 J 8550 7900 100 U 780 J 106000 5700 GWA-16S 7/16/2015 2 J+ 20 UJ 5000 U 5000 U 430 J 100 U 1000 U 30000 29400 GWA-16D 7/16/2015 10 U 14 J+ 41500 32600 25900 100 U 2500 256000 16400 GWA-17S 7/15/2015 2.2 J+ 100 J- 3710 J 4340 J 5600 100 U 1000 U 70000 58700 GWA-17D 7/15/2015 1.9 J+ 20 UJ 4860 J 7860 13500 100 U 510 J 109000 2500 U GWA-1S 7/12/2015 2.5 J+ 640 5180 15000 1000 U 100 U 1000 U 380000 18400 GWA-1 D 7/12/2015 1.5 J+ 420 5000 U 20100 4300 100 U 1000 U 158000 46200 GWA-2S 7/11/2015 10 UJ 40 5000 U 2540 J 1000 U 100 U 10100 33000 63200 GWA-2D 7/11/2015 3 J+ 20 U 2630 J 6450 990 J 100 U 1000 U 73000 115000 GWA-3D 7/15/2015 1.8 J+ 1700 J- 8350 12800 480 J 100 U 520 J 113000 2500 U GWA-4D 7/14/2015 2.9 J+ 530 2730 J 22900 6000 100 U 2100 188000 5900 GWA-5S 7/14/2015 1.6 J+ 1400 5000 U 5900 1000 U 100 U 1000 U 75000 3400 GWA-5D 7/13/2015 10 U 730 5000 U 25900 7800 100 U 860 J 163000 2500 U GWA-5BR(2) 7/13/2015 10 U 22 5210 16100 18700 100 U 2100 105000 2500 U GWA-6S 7/16/2015 1.3 J+ 290 J+ 2790 J 3600 J 10700 100 U 1000 U 53000 27700 GWA-6D 7/16/2015 1.4 J+ 170 J+ 2610 J 7130 3500 100 U 1000 U 121000 30500 GWA-7S 7/15/2015 1.3 J+ 42 J- 5000 U 8650 10200 100 U 850 J 79000 170000 GWA-7D 7/15/2015 2.7 J+ 100 J- 3430 J 16100 9900 100 U 1000 UJ 177000 3600 GWA-8S 7/14/2015 1.3 J+ 20 U 3550 J 7760 43400 100 U 830 J 139000 2500 U GWA-8D 7/15/2015 1.4 J+ 20 U 5000 U 10900 8400 100 U 1000 U 129000 8500 GWA-9S 7/18/2015 1.3 J+ 20 U 5000 U 5000 U 940 J 100 UJ 1000 U 30000 146000 GWA-9D 7/18/2015 1.1 J+ 980 5000 U 7450 5500 100 U 1000 U 93000 5500 MW-102S 6/17/2015 10 U 42 4590 J 35900 3400 500 U 540 J 676000 2500 U MW-102D 6/17/2015 18 20 U 7070 29700 82800 500 U 1100 1270000 2600 U MW-103S 7/12/2015 2030 20 U 2870 J 20400 1000 U 100 U 730 J 448000 89000 MW-103D 7/12/2015 39 14 J 6620 26300 1000 U 100 U 1000 U 661000 5000 U MW-200S 7/14/2015 1.4 J+ 22 5000 U 5440 NA 100 U 4700 122000 2500 U MW-200D 7/14/2015 0.75 J+ 25 3070 J 10400 4800 100 U 20500 J- 368000 2500 U MW-200BR 7/14/2015 49.7 20 U 5000 U 11200 NA 100 U 1000 U 267000 2500 U MW-201 D 7/18/2015 1.4 J+ 190 5000 U 6580 1 1900 100 U 520 J 128000 48200 Belews Creek Steam Station Page 9 of 10 Table 10-6. Groundwater Sample Results - Total and Dissolved Analyte Methane Nitrogen, NO2 plus NO3 Potassium Sodium Sulfate Sulfide Total Organic Carbon Total Dissolved Solids Total Suspended Solids CAS RN 74-82-8 NO2-NO3 7440-09-7 7440-23-5 14808-79-8 18496-25-8 TOC TDS TSS Fraction N N T T N N N N N Result Unit ug/I ug/I ug/I ug/1 ug/I ug/I ug/I ug/1 ug/I 15A NCAC 02L STANDARD NS NS NS NS 250000 NS NS 500000 NS IMAC* NS NS NS NS NS NS NS NS NS Sample Name Sample Date MW-203S 7/18/2015 1.5 J+ 210 5000 U 5000 U 1000 U 100 U 1000 U 37000 10900 MW-203D 7/18/2015 0.97 J+ 370 5000 U 7180 1700 100 U 1000 U 104000 225000 MW-203BR 7/18/2015 1 1 J+ 1 360 1 2690 J 1 9880 1 3300 100 Ll 1 1000 U 1 110000 1 108000 MW-204S 7/18/2015 1 85.7 1 230 1 5000 U 1 3060 J 1 2100 100 LI 1 1000 LI 1 49000 1 5200 MW-204D 1 7/18/2015 1 1 J+ 1 36 J+ 1 5000 U 1 2870 J 1 2700 1 100 Ll 1 1000 U 1 42000 1 6400 General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory T - Total D - Dissolved N - Fraction not applicable Comparison Criteria: NS - No applicable standard for this parameter shading + bold - indicates exceedance of NC 2L or IMAC Criteria. North Carolina Department of Environment and Natural Resources Division of Water Resources 02L Groundwater Quality Standards and Interim Maximum Allowable Concentrations (IMACs). April 2013 *NOTE: The IMAC value is shown where there is no applicable 02L standard. Appendix #1 of 15A NCAC Subchapter 02L Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, lists Interim Maximum Allowable Concentrations (IMACs). The IMACs were issued in 2010 and 2011, however NCDENR has not established a 02L standard for these constituents as described in 15A NCAC 02L.0202(c). For this reason, IMACs are noted in this report for reference only. Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 10 of 10 Table 10-7. Field Parameters Well ID Date Collected Time Collected Temp (°C) pH (SU) Specific Cond. (µS) Diss. Oxy (mg/L) ORP/Redox (mV) Turbidity (NTU) Notes AB-1D 7/10/2015 11:10 27.5 5.64 1777 0.22 206.3 11.02 - AB-1S 7/10/2015 13:44 25.5 5.9 1779 1.78 200.2 14.54 - AB-2D 7/15/2015 11:21 27.5 5.74 1734 1.3 155.8 9.47 - AB-2S 7/1S/2015 13:13 20.2 11.06 773 1.38 -4.6 8.21 - AB-3D 7/10/2015 14:40 27.9 7.11 1204 2.57 203.4 1.63 - AB-3S 7/11/2015 9:30 22.7 6.01 1451 0.56 203.9 3.89 - AB-4BR 7/16/2015 14:04 30.2 11.18 870 1.73 9.3 8.62 - AB-4D 7/16/2015 9:12 23.4 6.19 184.7 1.07 96.6 8.18 - AB-4S 7/15/2015 15:55 25.5 6.93 2570 0.55 -63.1 0.26 - AB-4SL 7/16/2015 12:10 29.5 10.18 682 0.3 0.3 26.24 - AB-5D 7/14/2015 15:10 29.5 7.41 171.8 0.99 -7.6 130.5 - AB-5S 7/15/2015 14:35 27.2 8.04 1465 0.48 -108.2 0.25 - AB-5SL 7/14/2015 13:26 27.6 9.59 2378 0.74 77.6 13.11 - AB-6D 7/8/2015 13:20 30 6.56 131.4 0.61 123.4 26 - AB-6S 7/8/2015 14:51 32.3 6.61 140.8 0.24 166.1 4.93 - AB-6SL 7/9/2015 8:03 27.1 6.71 367.6 0.3 -52.2 7.71 - AB-7D 7/9/2015 9:57 28 9.06 152.9 1.22 52.4 8.66 - AB-7D 6/16/2015 14:40 23.4 10.5 237 0.42 22.3 2.5 - AB-7S 7/13/2015 14:33 27.4 5.75 1170 0.57 75.2 4.14 - AB-7S 6/16/2015 11:02 20.1 5.7 1066 0.49 29.8 1.5 - AB-8D 7/13/2015 11:50 30.2 6.05 104.2 0.56 65 13.85 - AB-8D 6/17/2015 13:05 19.9 6.2 98.6 0.11 105.3 5.7 - AB-8S 6/16/2015 16:37 21 6.2 301 0.51 28.1 1.4 - AB-8SL 7/13/2015 13:48 32.5 10.14 6.48 0.31 70.6 8.56 - AB-8SL 6/17/2015 10:16 19.7 10.6 537 0.34 29.5 6.6 - AB-9BR 7/16/2015 18:23 17.4 9.12 247.2 0.37 -128.7 18.5 - AB-9D 7/16/2015 15:05 17.7 6.54 291.1 0.31 -38.1 23.2 - AB-9S 7/15/2015 15:55 18 4.47 48 1.66 188.8 3.72 - ABW 7/20/2015 10:45 16.6 5.76 1650 8.37 136 5.09 - BCSW008 7/20/2015 8:50 22 7.01 159.8 6.99 38.9 3.27 - BCSW0188A 7/20/2015 8:05 35.4 7.72 104.7 4.5 193 5.2 - BCSW019 7/20/2015 10:05 23.6 6.78 206.3 5.85 190 7.6 - BCWW002 7/20/2015 12:00 32.7 6.12 157.8 2.37 235 - - BG-1D 7/14/2015 16:37 23.4 6.3 126.2 4.43 162.4 7.4 - BG-2BR 7/9/2015 15:20 27.4 9.04 235.1 1.04 159.9 8.54 - BG-2D 7/9/2015 12:32 26.5 6.52 156.1 2.96 181.7 9.25 - BG-2S 7/9/2015 17:35 25.7 5.78 46.3 4.32 277.8 8.33 - BG-3D 7/18/2015 14:44 20 6.19 87 6.82 104 93 - BG-3S 7/18/2015 13:15 18.14 5.29 58 7.83 227.7 4.02 - G WA-10D 7/18/2015 11:30 19.3 11.98 979 2.99 -45.4 7.21 - GWA-10S 7/18/2015 8:45 15.9 4.14 200.7 3.08 272.3 7.14 - GWA-11D 7/18/2015 9:05 16.51 6.4 644 2.92 56.9 9.5 - GWA-11S 7/18/2015 11:00 15.97 5.59 704 5.06 226.1 3.13 - GWA-12BR 7/17/2015 14:18 21 8.13 149.7 0.82 -21.6 10.08 - Belews Creek Steam Station Page 1 of 3 Table 10-7. Field Parameters Well ID Date Collected Time Collected Temp (°C) pH (SU) Specific Cond. (µS) Diss. Oxy (mg/L) ORP/Redox (mV) Turbidity (NTU) Notes GWA-12D 7/17/2015 11:31 20.9 6.7 111.3 2.77 67 38.74 - GWA-12S 7/17/2015 10:49 21.9 6.08 57.6 4.99 230.7 7.44 - GWA-16D 7/16/2015 12:29 20.1 11.52 63 4.81 96.8 9.6 - GWA-16S 7/16/2015 15:37 21.4 5.43 32 5.91 140 70 - GWA-17D 7/15/2015 9:54 18.3 10.29 172 0.56 103.4 3.25 - GWA-17S 7/15/2015 12:54 23.6 6.7 102 0.76 13.7 21.7 - GWA-1D 7/12/2015 12:45 23 6.72 168.9 5.64 221.8 11.66 - GWA-1S 7/12/2015 15:04 23.1 4.94 406.9 3.98 345.1 8.32 - GWA-2D 7/11/2015 12:06 24.1 6.37 74.2 2.07 134.1 7.4 - GWA-2S 7/11/2015 14:55 22.5 5.29 19.4 5.5 321.4 11.74 - GWA-3D 7/15/2015 9:40 16.9 5.81 133.1 6.4 153.5 5.43 - GWA-4D 7/14/2015 10:48 21.5 7.6 285.1 6.02 164.2 8.3 - GWA-5BR2 7/13/2015 13:50 20.6 10.08 209 0.19 100.1 3.02 - GWA-5D 7/13/2015 10:38 20 7.67 314 6.5 157.1 4.08 - GWA-5S 7/14/2015 8:57 19.7 5.74 28.8 6.88 141.2 10.5 - G WA-6 D 7/16/2015 9:17 18.9 6.63 173 131 33.2 9.43 - GWA-6S 7/16/2015 8:50 17.4 4.36 81 4.44 260.5 5.49 - GWA-7D 7/15/2015 10:19 17.43 9.08 225 6.61 157.9 5.81 - GWA-7S 7/15/2015 16:42 17.6 4.91 126 2.65 150.4 4.92 - GWA-8D 7/15/2015 14:58 18.4 7.11 106 1.79 12.1 44.1 - GWA-8S 7/14/2015 15:06 16.2 5.36 191.3 3.66 -121.4 5.46 - G WA-9 D 7/18/2015 12:51 24.4 6.36 101.8 3.48 211.5 1.77 - GWA-9S 7/18/2015 14:45 31 5.49 23.4 4.12 317.1 42.16 - HD-11A 7/20/2015 9:20 15 5.61 1740 7.97 146.7 6.12 - HD-21 7/17/2015 9:57 16.5 4.85 1230 7 129.9 1.58 - HD-26 7/17/2015 10:46 15.3 4.99 269 6.64 219.1 6.81 - H D-7A 7/17/2015 14:50 11.3 5.31 1700 3.62 310 1 - MW-102D 7/14/2015 10:19 19.5 7.12 1750 0.52 318.9 7.06 - M W-102 D 6/17/2015 15:15 16.8 7.1 1448 3.16 -48.3 2.4 - MW-102S 7/14/2015 9:49 18.48 4.75 697 0.52 283.8 2 - MW-102S 6/17/2015 14:26 15.9 5 815 2.2 201.7 2.3 - MW-103D 7/12/2015 8:22 18.7 5.42 827 2.21 176 7.39 - MW-103S 7/12/2015 9:23 21.7 6.39 741 0.25 -44.8 4.73 - MW-200BR 7/14/2015 16:50 16.9 7.37 396 0.13 5.2 1.04 - M W-200D 7/14/2015 14:23 17.8 6.3 461 0.96 443 3.32 - MW-200S 7/14/2015 14:43 20.86 5.59 86 1.54 203.9 115 - MW-201D 7/18/2015 14:30 18.6 6.2 154.4 5.36 122.3 17.4 - MW-202BR 7/16/2015 16:16 29.3 7.24 181.6 4.54 143.6 8.03 - MW-202S 7/16/2015 17:15 17.83 5.45 39 8.23 185.9 6.48 - MW-202S 7/16/2015 13:55 19.41 6.03 78 6.68 159.3 9.81 - MW-203BR 7/18/2015 12:00 23.5 6.82 136.9 3 219.7 18.05 - MW-203D 7/18/2015 10:25 23.3 6.49 86.8 3.25 190.7 22.41 - MW-203S 7/18/2015 9:30 22.7 5.62 33.2 6.23 305.8 5.15 - M W-204D 1 7/18/2015 8:381 17.51 5.481 38 4.891 1081 5.1 - Belews Creek Steam Station Page 2 of 3 Table 10-7. Field Parameters Well ID Date Collected Time Collected Temp (°C) pH (SU) Specific Cond. (µS) Diss. Oxy (mg/L) ORP/Redox (mV) Turbidity (NTU) Notes MW-204S 7/18/2015 10:42 17.9 5.37 50 3.17 134 6.75 - 003 7/17/2015 14:11 30.22 7.79 1382 8.42 191.2 5.75 - S-1 7/16/2015 10:00 19.6 5.59 65 8.28 96 11.7 - 5-10 7/17/2015 15:07 22.47 7.08 1090 9.57 38 2.95 - S-11 7/17/2015 15:40 19.49 6.71 1200 11 55.2 1.27 - S-2 7/16/2015 17:38 22.5 5.6 215 7.23 1119 3.25 - S-3 7/17/2015 10:43 20.4 5.91 39.2 2.54 137.5 10.6 - S-4 7/17/2015 9:42 18.2 6.14 185.8 6.29 134 10.5 - S-5 7/17/2015 12:39 21.99 6.92 162 8.55 169.9 5.98 - S-6 7/17/2015 8:45 20.68 6.6 766 6.39 71.5 40 - S-7 7/17/2015 11:00 20.75 6.4 58 3.7 45.3 18.2 - S-8 7/17/2015 15:00 20.48 6.54 122 6.7 106.4 1.13 - S-9 7/17/2015 13:30 22.69 6.42 1036 8.04 154.4 1.04 - SW-AB1 6/15/2015 14:20 34.2 8.05 1810 6.03 122 2.7 - SW-AB2 6/11/2015 15:20 31.5 8.02 1770 5.8 197 3 - SW-AB2 7/20/2015 14:50 32.8 8.26 1690 6.06 197.5 11.96 - SW-AB4 6/11/2015 16:30 31 6.94 620 3.45 202 1.9 - SW-AB5 6/12/2015 12:20 29.3 8.28 610 9.35 152 1 - SW-AB6 6/11/2015 12:15 18.9 8.28 163 8.51 189 1.9 - SW-AB7 6/11/2015 10:15 28.5 7.39 65 6.11 200.8 3.5 - SW-AB8 6/10/2015 15:15 31 7.5 67 7.31 313 1.5 - SW-AB9 6/15/2015 15:20 32.1 8.28 6.91 114 114 1.2 - SW-BL-D 7/20/2015 11:10 32.9 7.03 129 6.94 68 1.5 - SW-BL-U 7/20/2015 11:30 35.1 7.43 100 4.3 211 4.21 - SW-DR-D 7/20/2015 9:45 26.77 5.92 1040 7.52 131 11.5 - SW-DR-U 7/17/2015 8:30 20 5.39 68 7.84 204.8 23.5 - TF-1 7/17/2015 13:18 17.2 5.14 1770 4.3 289.1 2.47 - TF-2 7/17/2015 12:201 14.71 5.161 1720 5.481 302.21 2.081- TF-3 7/20/2015 13:101 15.41 5.231 16501 7.231 2671 1.5 - Notes: Shading indicates exceedance of 2L Standards The 2L Standard for pH is 6.5-8.5 SU µS - microsiemens °C - degrees Celsius SU - standard units mg/L - milligram per liter mV - millivolts NTU - Nephelometric turbidity unit Belews Creek Steam Station Page 3 of 3 Table 10-8. Range of COI Concentrations in Groundwater Upgradient of the Ash Basin Constituent MW-202S and MW- New Background Wells Regional Groundwater Groundwater 202D Background Groundwater Concentrations Concentrations Upgradient of Groundwater Concentrations (Range, (Range, pg/L) Ash Basin (Range, pg/L) Concentrations pg/L) (--20 mile radius) (Range, p /L Antimony 0.44J to 1.16 0.16J to 1.5 <6 (North Carolina) 0.17J to 2.5 (GWA-5S) Arsenic <0.5 to <1 0.2J to 1.9 1.5 to 5 (Stokes, 0.15J to 4.2 (GWA-9S) Rockingham) Beryllium <0.2 to <1 0.17J to 0.33 NR 0.068J to 2.7 (GWA-7S) Boron <50 37J to <50 <0.01 to 0.59 30J to 92 (GWA-7S) Cadmium <0.08 to <1 0.052J to 0.41 0.5 to 0.6 (Stokes, 0.025J to 0.59 (GWA-6S) Rockingham) Chromium 0.87J to 15 0.77J to 4.8 5.2 to 5.6 (Stokes, 0.42J to 50.7 (GWA-17S) Rockingham) Cobalt <0.5 to <1 0.19J to 0.9 1 to 2 0.24J to 16.5 (MW-204S) Iron 17 to 7,280 <50 to 1,900 602.4 to 731.7 (Stokes, 36J to 2,200 (GWA-9S) Rockingham) Manganese 2.9J to 413 2.7J to 93 <DL to 785.8 (20-mile 4.3J to 1,100 (GWA-5D) radius from site pH 5.3 SU to 6.3 SU 5.8 SU to 9.0 SU 4.5 SU to 8 SU (20-mile 5.29 SU to 9.04 SU (BG-2BR) radius from site Selenium <0.5 to <1 0.24J to 1.1 2.5 to 26 (Stokes, 0.29J to 3.6 (GWA-8S) Rockingham) Thallium <0.1 to <0.2 0.024J to <0.1 <1 (Blue Ridge Mountain 0.033J to 0.24 (GWA-6S) and Piedmont aquifers) Vanadium <1 0.31J to 7.4 <DL to 13.3 (20-mile 0.42J to 7.9 (GWA-4D) radius from site Chloride 1,200 to 3,300 2,000 to 9,700 <DL to 55.7 pg/L (20-mile 670J to 20,900 (GWA-7S) radius from site Sulfate 120 to 8,200 920J to 23,400 NR 430J to 43,400 (GWA-8S) TDS 30,000 to 113,000 57,000 to 173,000 NR 30,000 to 256,000 (GWA-16D) Notes: 1. pg/L = micrograms per liter 2. J = Estimated concentration 3. U = Not detected above the reporting detection limit 4. NR = Not Reported 5. DL = Detection Limit 6. SU = Standard Units 7. All constituents listed are total Belews Creek Steam Station Page 1 of 1 Table 10-9. Range of COI Concentrations in Groundwater Beneath the Ash Basin Constituent MW-202S and MW- New Background Wells Regional Groundwater Groundwater 202D Background Groundwater Concentrations Concentrations Beneath of Groundwater Concentrations (Range, (Range, pg/L) Ash Basin (Range, pg/L) Concentrations pg/L) (--20 mile radius) (Range, p /L Antimony 0.44J to 1.16 0.16J to 1.5 <6 (North Carolina) 0.16J to 8.1 (AB-2S) Arsenic <0.5 to <1 0.2J to 1.9 1.5 to 5 (Stokes, 0.12J to 39 (AB-1 S) Rockingham) Beryllium <0.2 to <1 0.17J to 0.33 NR 0.069J to 0.9 (AB-1D) Boron <50 37J to <50 <0.01 to 0.59 42J to 13,200 (AB-3S) Cadmium <0.08 to <1 0.052J to 0.41 0.5 to 0.6 (Stokes, 0.035J to 0.6 (AB-2D) Rockingham) Chromium 0.87J to 15 0.77J to 4.8 5.2 to 5.6 (Stokes, 0.24J to 39.7 (AB-1S) Rockingham) Cobalt <0.5 to <1 0.19J to 0.9 1 to 2 0.22J to 108 (AB-2D) Iron 17 to 7,280 <50 to 1,900 602.4 to 731.7 (Stokes, 84 to 12,800 (AB-1S) Rockingham) Manganese 2.9J to 413 2.7J to 93 <DL to 785.8 (20-mile <5 to 14,800 (AB-2D) radius from site pH 5.3 SU to 6.3 SU 5.8 SU to 9.0 SU 4.5 SU to 8 SU (20-mile 4.47 SU to 11.18 SU (AB-4BR) radius from site Selenium <0.5 to <1 0.24J to 1.1 2.5 to 26 (Stokes, 0.23J to 1.3 (AB-2S) Rockingham) Thallium <0.1 to <0.2 0.024J to <0.1 <1 (Blue Ridge Mountain 0.02J to 0.42 (AB-1 D) and Piedmont aquifers) Vanadium <1 0.31J to 7.4 <DL to 13.3 (20-mile 0.7J to 47.2 (AB-2S) radius from site Chloride 1,200 to 3,300 2,000 to 9,700 <DL to 55.7 pg/L (20-mile 2000 to 541,000 (AB-2D) radius from site Sulfate 120 to 8,200 920J to 23,400 NR 440J to 132,000 (AB-3S) TDS 30,000 to 113,000 57,000 to 173,000 NR 28,000 to 1,430,000 (AB-3S) Notes: 1. pg/L = micrograms per liter 2. J = Estimated concentration 3. U = Not detected above the reporting detection limit 4. NR = Not Reported 5. DL = Detection Limit 6. SU = Standard Units 7. All constituents listed are total Belews Creek Steam Station Page 1 of 1 Table 10-10. Range of COI Concentrations in Groundwater Downgradient of the Ash Basin Constituent MW-202S and MW- New Background Wells Regional Groundwater Groundwater 202D Background Groundwater Concentrations Concentrations Downgradient Groundwater Concentrations (Range, (Range, pg/L) of the Ash Basin (Range, Concentrations pg/L) (--20 mile radius) pg/L) (Range, p /L Antimony 0.44J to 1.16 0.16J to 1.5 <6 (North Carolina) 0.25J to 1.6 (GWA-10D) Arsenic <0.5 to <1 0.2J to 1.9 1.5 to 5 (Stokes, 0.18J to 79.1 (MW-103S) Rockingham) Beryllium <0.2 to <1 0.17J to 0.33 NR 0.068J to 6.6 (GWA-11S) Boron <50 37J to <50 <0.01 to 0.59 37J to 8,800 (MW-102D) Cadmium <0.08 to <1 0.052J to 0.41 0.5 to 0.6 (Stokes, 0.036J to 3.8 (MW-103D) Rockingham) Chromium 0.87J to 15 0.77J to 4.8 5.2 to 5.6 (Stokes, 0.23J to 29.7 (GWA-1S) Rockingham) Cobalt <0.5 to <1 0.19J to 0.9 1 to 2 0.17J to 413 (MW-102S) Iron 17 to 7,280 <50 to 1,900 602.4 to 731.7 (Stokes, 35J to 92,200 (MW-103S) Rockingham) Manganese 2.9J to 413 2.7J to 93 <DL to 785.8 (20-mile <5 to 21,300 (MW-102S) radius from site pH 5.3SUto6.3SU 5.8SUto9.0SU 4.5 SU to 8 SU (20-mile 4.14 SU to 11.98 SU radius from site) (GWA-10D Selenium <0.5 to <1 0.24J to 1.1 2.5 to 26 (Stokes, 0.22J to 10.6 (GWA-10S) Rockingham) Thallium <0.1 to <0.2 0.024J to <0.1 <1 (Blue Ridge Mountain 0.017J to 3.6 (MW-103D) and Piedmont aquifers) Vanadium <1 0.31J to 7.4 <DL to 13.3 (20-mile 0.29J to 8.3 (MW-200S) radius from site Chloride 1,200 to 3,300 2,000 to 9,700 <DL to 55.7 pg/L (20-mile 1,300 to 407,000 (MW-102D) radius from site Sulfate 120 to 8,200 920J to 23,400 NR 480J to 82,800 (MW-102D) TDS 30,000 to 113,000 57,000 to 173,000 NR 33,000 to 1,270,000 (MW-102D) Notes: 1. pg/L = micrograms per liter 2. J = Estimated concentration 3. U = Not detected above the reporting detection limit 4. NR = Not Reported 5. DL = Detection Limit 6. SU = Standard Units 7. All constituents listed are total Belews Creek Steam Station Page 1 of 1 Table 10-11. Groundwater Sample Results - Background - Speciation Analyte As(III) As(V) Chromium (III) Chromium (VI) Fe(II) Fe(III) Mn(II) Mn(IV) Se(IV) CAS RN 7784-46-5 10103-60-3 16065-83-1 18540-29-9 1345-25-1 1309-37-1 1344-43-0 1313-13-9 10102-18-8 Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I Sample Name Sample Date MW-202S 7/16/2015 0.155 J+ 0.5 U 0.75 0.44 18.5 J+ 1.2 0.546 J 3.074 2 U MW-202D 7/16/2015 0.574 J+ 0.5 U 0.646 0.13 30 UJ 70 U 2 U 0.62 J 2 U MW-202BR 7/16/2015 0.155 J+ 0.166 J 1.2 3.2 30 UJ 70 U 9.81 1.99 2 U General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 1 of 2 Table 10-11. Groundwater Sample Results - Background - Speciation Analyte Se(VI) CAS RN 13410-01-0 Result Unit ug/I Sample Name Sample Date MW-202S 7/16/2015 2 U MW-202D 7/16/2015 2 U MW-202BR 7/16/2015 0.528 J General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 2 of 2 Table 10-12. Groundwater Sample Results - Speciation Analyte As(III) As(V) Chromium (III) Chromium (VI) Fe(II) Fe(III) Mn(II) Mn(IV) Se(IV) CAS RN 7784-46-5 10103-60-3 16065-83-1 18540-29-9 1345-25-1 1309-37-1 1344-43-0 1313-13-9 10102-18-8 Result Unit ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I ug/I Sample Name Sample Date AB-2S 7/15/2015 0.65 J+ 5.09 3.5 14 30 UJ 353 J 2.53 J+ 15.47 2 U AB-21D 7/15/2015 0.422 J+ 0.5 U 0.641 J 0.02 U 11.4 J- 121.6 14800 21LI 2 U AB-41D 7/16/2015 0.717 J+ 1.44 1.12 J 0.02 U 30 UJ 109 J 43.1 21J 2 U AB-4BR 7/16/2015 0.155 J+ 0.19 J 0.01 7.5 30 UJ 70 U 2 U 2U 2 U AB-51D 7/14/2015 2.15 J+ 4.29 J+ 4.711 0.049 30 UJ 252 J 105 27 2 U AB-61D 7/8/2015 0.5 UJ 0.5 UJ NA NA NA NA 104 J+ 6 2 U AB-7D 6/16/2015 NA 0.372 NA 0.059 NA 20 U 7.65 J+ 3.08 0.5 U AB-7D 7/9/2015 0.686 J+ NA NA NA 30 UJ 393 J 14.2 16.9 NA AB-81D 7/13/2015 1.85 J+ 0.326 J+ 2.39 J 0.02 U 30 U 691 J 151 12 2 U AB-9S 7/15/2015 0.375 J+ 0.5 U 0.116 J 0.02 U 11.4 J- 88.6 J 469 142 2 U AB-91D 7/16/2015 0.909 J+ 0.899 0.846 J 0.02 U 30 UJ 215 J 170 14 2 U AB-9BR 7/16/2015 6.6 J+ 0.791 0.68 J 0.02 U 30 UJ 98 J 16.6 44.2 2 U GWA-12S 7/17/2015 0.446 J+ 0.5 UJ 6.636 0.014 J 40 U 599 J 157 38 2 U GWA-12D 7/17/2015 0.575 J+ 0.5 U 2.436 0.014 J 40 U 163 J 341 4 2 U GWA-31D 7/15/2015 0.155 J+ 0.272 J 0.296 0.6 30 UJ 70 U 19.1 2.5 2 U GWA-41D 7/14/2015 0.306 J+ 0.871 J+ 8.1 3.7 30 UJ 203 J 7.42 3.18 2 U GWA-5S 7/14/2015 0.5 UJ 0.5 UJ 6.52 2.2 30 UJ 129J 425 53 2 U GWA-51D 7/13/2015 NA 0.44 J+ 1.23 J 0.02 U 30 U 14.7 J 1140 30 2 U GWA-5BR(2) 7/13/2015 NA 1.05 J+ 1.31 0.16 30 UJ 42.8 J 5.1 J+ 0.93 2 U GWA-8S 7/14/2015 0.5 UJ 0.5 UJ 4.082 0.048 30 UJ 49.6 J 615 J+ 93 2 U GWA-81D 7/15/2015 0.463 J+ 0.5 U 1.48 J 0.02 U 39.6 J- 598.4 42.3 8.3 2 U MW-102S 7/14/2015 0.5 UJ 0.5 UJ 3.78 J 0.02 U 13.8 J+ 290.2 20200 J+ 21_1 2 U MW-102D 7/14/2015 0.5 UJ 0.5 UJ 2.82 0.02 U 16.1 J+ 897.9 2730 J+ 450 2 U MW-200S 7/14/2015 0.5 UJ 0.6 J+ 8.43 J 0.02 U 197 J+ 2653 329 J+ 146 2 U MW-200D 7/14/2015 0.5 UJ 0.901 J+ 3.856 0.084 30 UJ 131 J 13.2 J+ 4.4 2 U MW-200BR 7/14/2015 1.43 J+ 0.168 J+ 3.02 J 0.02 U 20.8 J+ 324.2 115 J+ 16 2 U General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 1 of 2 Table 10-12. Groundwater Sample Results - Speciation Analyte Se(VI) CAS RN 13410-01-0 Result Unit ug/I Sample Name Sample Date AB-2S 7/15/2015 0.701 J AB-21D 7/15/2015 2 U AB-41D 7/16/2015 2 U AB-4BR 7/16/2015 0.545 J AB-51D 7/14/2015 2 U AB-61D 7/8/2015 2 U AB-7D 6/16/2015 0.238 AB-7D 7/9/2015 NA AB-81D 7/13/2015 2 U AB-9S 7/15/2015 2 U AB-91D 7/16/2015 2 U AB-9BR 7/16/2015 2 U GWA-12S 7/17/2015 2 U GWA-12D 7/17/2015 2 U GWA-31D 7/15/2015 2 U GWA-41D 7/14/2015 2 U GWA-5S 7/14/2015 2 U GWA-51D 7/13/2015 2 U GWA-5BR(2) 7/13/2015 2 U GWA-8S 7/14/2015 1.5 J GWA-81D 7/15/2015 2 U MW-102S 7/14/2015 2 U MW-102D 7/14/2015 2 U MW-200S 7/14/2015 2 U MW-200D 7/14/2015 2 U MW-200BR 7/14/2015 2 U General Notes: ug/I - micrograms per liter NA - Not analyzed or not reported by analytical laboratory Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 2 of 2 Table 10-13. Groundwater Radiological Sample Results Analyte Radium-226 Radium-228 Uranium, Natural Uranium-233 Uranium-234 Uranium-236 CAS RN 13982-63-3 15262-20-1 7440-61-1 13968-55-3 13966-29-5 13982-70-2 Fraction T T T T T T Result Unit pCi/I pCi/I ug/I ug/I ug/I ug/I Sample Name Sample Date BG-1 D 7/14/2015 1.9 4.66 J+ 0.081 J 0.05 U 0.05 U 0.05 U MW-200BR 7/14/2015 1.43 3.38 J+ 0.829 0.05 U 0.05 U 0.05 U MW-200D 7/14/2015 9.84 3 U 0.652 0.05 U 0.05 U 0.05 U MW-200S 7/14/2015 1.74 3 U 0.502 0.05 U 0.05 U 0.05 U MW-202BR 7/16/2015 3.55 3 U 1.81 0.05 U 0.05 U 0.05 U MW-202D 7/16/2015 4.63 3 U 0.207 J+ 0.05 U 0.05 U 0.05 U MW-202S 7/16/2015 5.74 3 U 0.098 J+ 0.05 U 0.05 U 0.05 U General Notes: pCi/I - picoCuries per liter NA - Not analyzed or not reported by analytical laboratory T - Total Qualifier Notes: U -- Not detected above the reporting detection limit. J -- Estimated Concentration J+ -- Estimated concentration, biased high. J- --Estimated concentration, biased low. Belews Creek Steam Station Page 1 of 1 Table 11-1. Soil/Material Properties for Ash, Fill, Alluvium, and Soil/Saprolite Borehole Sample # Depth (ft) Material Description � USCS Specific Gravity z Natural Moisture a Content (%) Atterberg Limits° Grain Sizes Total Porosity2 Estimated Specific Yield/Effec tive Porosity 14 Vertical Hydraulic Conductivity6, kv20, (cm/sec) Hydrostratigraphic Layer o /o Gravel 0 /o Sand o / Fines ° Plastic Limit (PL) Liquid Limits (LL) Plasticity Index (PI) Coarse Fine a Coarse 9 " Medium 11 Fine 12 Silt Clay 13 AB-1S UD 10-12 Tan -Brown Sandy Silt ML 2.617 1 23.0 35 37 2 0.0 1.1 5.2 1.7 28.8 44.4 18.8 45.9% 10.5% 8.60E-07 F AB-1S UD 15-17 Red -Brown Micaceous Silty Sand SM 2.803 14.4 NP 35 NP 0.0 7.8 11.3 17.0 28.9 29.0 6.0 37.1% 25.0% 2.32E-05 F AB-1S UD 20-22 Tan -Brown Silty Sand SM 2.730 18.5 NP 36 NP 0.0 11.9 12.7 11.4 25.9 26.3 11.8 36.4% 18.5% 1.05E-05 F AB-1S UD 35-37 Red -Brown Silty Sand SM 2.655 22.5 NP 34 NP 0.0 0.2 1.5 5.0 47.3 41.1 4.9 45.3% 22.5% 1.05E-04 M1 AB-2GTB UD 10-12 Orange -Brown Silt with Sand ML 2.637 22.8 41 44 3 0.0 1.5 0.8 3.2 19.2 46.8 28.5 43.3% 4.5% 8.44E-07 F AB-2GTB UD 30-32 Red -Brown Sandy Silt ML 2.625 25.7 36 38 2 0.0 0.4 0.4 3.2 31.3 45.7 19.0 42.7% 16.0% 2.20E-06 F AB-2GTB Jar 55-56.5 Light Red -Brown Sandy Silt - 22.1 - - - 0.0 1.1 1.7 2.1 30.7 42.8 21.6 - 9.0% F AB-2GTB UD 85-87 Red -Brown Silty Sand with Gravel SM 2.727 30 33 3 0.0 19.6 23.9 22.8 17.0 13.4 3.3 - 32.0% M1 AB-2GTB UD 64-66 Red -Brown Sandy Silt ML 2.678 22.8 34 36 2 0.0 1.1 1.9 2.6 27.9 49.7 16.8 39.4% 11.0% 1.14E-06 F AB-2S Jar 10-11.5 Red -Brown Micaceous Clayey Silty Sand 20.3 - - - 0.0 3.7 7.2 10.1 32.2 33.3 13.5 - 16.0% F AB-3D Jar 15-16.5 Red -Brown Micaceous Elastic Silt 24.9 0.0 0.0 6.1 1.9 28.2 38.7 24.1 6.0% F AB-3D Jar 25-26.5 Red -Brown Silty Sand 20.4 0.0 11.7 13.2 12.7 27.9 24.3 10.2 20.0% F AB-3D Jar 40-41.5 Brown Micaceous Silty Sand 14.3 - 0.0 0.8 11.7 15.7 39.5 27.5 4.8 - 26.0% M1 AB-3GTB UD 20-22 Red -Brown Silty Sand SM 2.786 21.6 NP 33 NP 0.0 9.1 13.7 12.5 26.6 26.5 11.6 54.3% 18.5% 2.40E-05 F AB-3GTB UD 45-47 Red -Brown Silty Sand with Gravel SM 2.724 20.4 NP 31 NP 18.9 20.5 14.5 14.4 16.8 13.2 1.7 42.7% 34.0% 1.25E-04 M1 AB-3S UD 28-30 Orange -Brown Sandy Silt ML 2.591 26.6 35 37 2 0.0 1.5 0.9 3.0 27.4 47.6 19.6 40.1 % 9.0% 8.63E-07 F AB-4BR Jar 23-24.5 Fly Ash - 48.5 - - - 0.0 0.1 3.7 23.0 41.7 28.1 3.4 - 27.5% A AB-4BR Jar 48-49.5 Fly Ash - 31.1 - 0.0 0.0 0.0 0.2 1.4 76.7 21.7 - 3.8% A AB-4D UD 68-70 Grey -Brown Silty Sand SM 2.732 25.0 NP 37 NP 0.0 0.0 0.5 3.2 55.3 36.5 4.5 45.4% 24.0% 3.61E-05 M1 AB-4D UD 73-75 White -Brown Silty Sand SM 2.606 14.8 NP 29 NP 0.0 1.6 4.2 12.3 49.8 27.8 4.3 36.2% 26.5% 6.35E-05 M2 AB-5D Jar 48-49.5 Grey -Brown Sandy Lean Clay - 36.3 - 0.0 0.0 0.0 2.1 23.8 40.7 33.4 - 3.8% M1 AB-5D Jar 49.5-51 Yellow -Brown Elastic Silt 43.6 0.0 0.9 3.2 1.3 24.1 52.6 17.9 10.0% M1 AB-5D Jar 68-69 Light -Brown Micaceous Silty Sand 23.3 0.0 1.2 7.1 10.8 44.4 31.1 5.4 25.0% M2 AB-5D Jar 73-73.4 Orange -Brown Silty Sand - 16.2 - 0.0 4.5 10.3 11.4 41.3 27.6 4.9 - 26.0% M2 AB-5GTB UD 55-56 Brown Micaceous Silty Sand SM 2.756 26.9 NP 36 NP 0.0 1.0 7.1 13.2 30.6 44.0 4.1 46.2% 24.0% 7.46E-05 M1 AB-6D Jar 13-14.5 Fly Ash - 65.4 - 0.0 3.3 12.7 24.0 39.4 18.6 2.0 - 31.0% A AB-6GTB UD 6-8 Fly Ash SM 2.227 55.6 NP NV NP 0.0 2.1 9.6 19.3 56.5 11.4 1.1 58.3% 35.0% 4.75E-04 A AB-7D Jar 3-5 Fly Ash - 11.2 0.0 7.0 17.1 28.8 34.0 11.6 1.5 - 35.0% A AB-7SL UD 7-9 Fly Ash SM 1.705 43.4 NP NV NP 0.0 0.4 3.7 11.6 47.9 31.6 4.8 48.4% 25.0% 6.08E-04 A AB-7SL UD 20-22 Tan -Brown Silty Sand SM 2.597 27.8 27 22 NP 0.0 4.9 11.5 12.3 21.8 32.9 16.6 40.6% 13.5% 1.42E-06 M1 AB-8D Jar 14-16 Fly Ash - 34.9 - - 0.0 0.0 0.2 1.9 8.6 75.1 14.2 - 7.0% A AB-8SL UD 52-53.1 Grey -Brown Silty Sand SM 2.668 25.5 NP 24 NP 0.0 12.6 10.7 11.5 27.9 26.9 10.4 40.0% 20.0% 6.96E-06 M1 AB-9D UD 60-62 Olive -Brown Silty Sand with PWR SM 2.572 17.2 28 29 1 0.0 5.5 5.7 27.1 30.8 24.2 6.7 35.3% 25.0% 3.03E-05 M1 AB-9GTB UD 45-47 Olive -Brown Sandy Silt ML 2.574 36.1 NP 34 NP 0.0 0.1 0.5 3.1 37.0 42.5 16.8 47.2% 12.5% 4.00E-05 M1 BG-1S UD 15-16.9 Whitish Yellow -Brown Sandy Silt ML 2.597 15.2 41 42 1 0.0 0.0 0.3 2.5 35.3 54.6 7.3 57.7% 17.5% 2.33E-04 M1 BG-1S UD 34.45-36.8 Tan -Brown Silty Sand with Black Stains SM 2.753 40.3 NP 37 NP 0.0 7.1 13.2 27.1 26.8 23.2 2.6 58.9% 30.0% 1.67E-04 M2 BG-2S UD 55-57 Tan -Brown Silty Sand SM 2.639 24.8 NP 32 NP 0.0 1.9 1.6 6.3 44.1 40.4 5.7 42.7% 22.0% 3.17E-05 M1 BG-3S UD 40-42 Orange -Brown Silty Sand SM 2.662 29.0 NP 38 NP 0.0 2.1 4.9 8.8 38.2 40.1 5.9 48.0% 22.0% 4.66E-05 M1 GWA-1D Jar 14-14.8 Tan -Brown Silty Sand SM 2.738 - NP 34 NP 0.0 5.8 11.9 14.5 31.3 28.8 7.7 - 22.5% M1 GWA-1GTB UD 4-5.5 Red -Brown Silty Sand SM 2.722 17.0 NP 35 NP 0.0 9.7 16.4 16.6 28.7 25.5 3.4 42.3% 28.0% 1.02E-04 M1 GWA-1S Jar 9-9.7 Brown Micaceous Silty Sand with Gravel SM 2.764 - NP 33 NP 0.0 15.5 12.7 12.3 25.0 28.3 6.2 - 24.5% M1 GWA-2D UD 39-41 Yellow -Brown Sandy Silt ML 2.600 38.7 NP 34 NP 0.0 0.2 0.9 2.8 36.3 53.0 6.8 49.8% 18.0% 7.78E-05 M1 GWA-4D Jar 10-11.5 Yellow -Brown Sandy Silt - 29.8 - 0.0 0.0 1.1 2.4 32.8 51.4 12.3 - 15.0% M1 GWA-4D Jar 45-46.5 Light -Brown Silty Sand - 21.3 - 0.0 0.0 0.1 5.9 52.0 36.1 5.9 - 23.0% M2 GWA-4S UD 8-10 Tan -Brown Sandy Silt ML 2.624 15.9 NP 37 NP 0.0 2.9 3.1 3.9 37.9 37.0 15.2 47.6% 14.5% 1.03E-04 M1 GWA-4S UD 15-17 Orange -Brown Silty Sand SM 2.606 20.5 NP 38 NP 0.0 0.0 0.0 5.6 60.6 29.1 4.7 54.7% 26.0% 4.06E-04 M1 GWA-5GTB UD 28-30 Light -Brown and White Silty Sand SM 2.692 20.9 NP 33 NP 0.0 1.9 2.9 8.7 49.4 33.2 3.9 46.7% 25.5% 7.41E-05 M1 GWA-7S UD 42.5-43.3 Tan -Brown Micaceous Silty Sand SM 2.702 26.1 NP 29 NP 0.0 6.4 4.6 14.6 40.4 32.4 1.6 43.3% 27.5% 6.10E-05 M1 GWA-8S UD 33-34.5 Grey -Brown Silty Sand SM 2.633 21.0 NP 32 NP 0.0 0.0 0.1 3.6 54.3 38.1 3.9 39.8% 24.5% 6.48E-05 M2 GWA-9GTB UD 60-62 Yellow -Brown Sandy Silt ML 2.668 33.8 NP 36 NP 0.0 2.7 5.1 3.6 33.4 46.7 8.5 47.8% 22.0% 1.56E-05 M2 GWA-10S UD 24-26 Tan -Brown Sandy Silt ML 2.610 33.4 NP NV NP 0.0 0.4 1.6 4.4 40.1 51.4 2.1 45.7% 22.5% 1.38E-04 M1 GWA-11D UD 42-42.6 Dark -Brown Micaceous Silty Sand SM 2.707 16.1 NP NV NP 0.0 2.2 10.1 20.6 37.1 28.1 1.9 33.1% 29.0% 5.39E-05 M2 Belews Creek Steam Station Page 1 of 2 Table 11-1. Soil/Material Properties for Ash, Fill, Alluvium, and Soil/Saprolite Atterberg Limits° Grain Sizes Estimated Vertical ° /° Gravel o /° Sand o / Fines ° Specific Natural Moisture Total Specific Hydraulic Hydrostratigraphic Borehole Sample # Depth (ft) Material Description � USCS Gravity z a Content (%) PorosityZ Yield/Effec Conductivity6, Layer Plastic Liquid Plasticity Coarse Fine a Coarse s Medium " Fine " 12 Silt Clay 13 tive k (cm/sec) Limit (PL) Limits (LL) Index (PI) Porosity" Zo, GWA-12D UD 25-27 White -Brown Sandy Silt MIL 2.622 12.2 NP 35 NP 0.0 5.0 2.2 1.2 30.3 58.0 3.3 49.8% 19.5% 2.30E-04 M1 MW-20013R UD 4-5.1 Grey Silty Sand SM 2.706 23.0 NP 29 NP 0.0 9.8 9.7 19.3 35.8 18.1 7.3 39.2% 26.0% 1.33E-05 M1 Notes: 1. ASTM Standard D 2487, Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System) 2. ASTM Standard D 854, "Standard Test Methods for Specific Gravity of Soil Solids by Water Pycnometer" 3. ASTM Standard D 2216, "Standard Test Methods for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass 4. ASTM Standard D 4318, "Standard Test Methods for Liquid Limit, Plastic Limit, and Plasticity Index of Soils 5. ASTM Standard D 422, "Standard Test Method for Particle -Size Analysis of Soils 6. ASTM Standard D 5084, "Standard Test Methods for Measurement of Hydraulic Conductivity of Saturated Porous Materials Using a Flexible Wall Permeameter" 7. Coarse Gravel: 19.Omm - 75mm 8. Fine Gravel: 4.75mm - 19.Omm 9. Coarse Sand: 2.Omm - 4.75mm 10. Medium Sand: 0.425mm - 2.Omm 11. Fine Sand: 0.075mm - 0.425mm 12. Silt: 0.005mm - 0.075mm 13. Clay: <0.005mm 14. All columns directly derived from laboratory analyses except "Estimated Specific Yield/Effective Porosity". 15. Effective porosity and specific yield are not synonymous. For practical purposes, they may be estimated as approximately equal in value. 16. AB-2GTB represented as A13-2D on laboratory reports. 17. AB-3GTB (20-22', 45-47') represented as AB-31) on laboratory reports. 18. AB4D represented as AB-4BR on laboratory reports. 19. AB-4BR represented as A134D on laboratory reports. 20. AB-9GTB (45-47') represented as A13-9S on laboratory reports. 21. AB-2GTB, GWA-1GTB, and GWA-5GTB represented as AB-2Sa, GWA-1Sa, and GWA-5Sa respectively on laboratory reports. Belews Creek Steam Station Page 2 of 2 Table 11-2. Historic Laboratory Permeability Test Results Vertical Hydraulic Hydrostratigraphic Borehole Depth 1 of Test (ft bgs) Depth 2 of Test (ft bgs) Conductivity'k' Layer (cm sec) BC-4A1 5 6.7 2.51 E-04 M1 BC-51 9.5 11.5 3.61 E-04 M1 M W 2-11 9.5 11.5 2.80E-06 M 1 MW2-21 24.1 25.5 1.81 E-04 M1 M W 2-21 34.1 36.1 6.63E-05 M 1 M W 2-31 29 1 30.6 1 5.58E-05 M 1 PZ-01 DZ 156 1 58 1 8.40E-07 M 1 Notes: 1. See Appendix H for referenced laboratory conductivity reports. 2. Laboratory data from CRHS-series wells (S&ME Project No. 1356-10-0413) were not used in the statistical analysis. See Appendix H for CRHS-series laboratory data. References: 1 Geology/Hydrogeology of the Existing Belews Creek Landfill and Proposed Ash Landfill Expansion Site. Developed by FRAMATOME ANP. Dated September 18, 2001. 2. Belews Creek Pine Hall Ash Landfill (Permit #85-03), Investigation of the Water Level in Observation Well OB-1. Developed by DTA, Inc., dated February 10, 2005. DTA Project No. 024.0069.0000 3. Water Quality Monitoring Plan — Phase 1/Phase 2, Craig Road Landfill Expansion. Developed by S&ME, dated April 26, 2014. S&ME Project No. 1356-10-041 Belews Creek Steam Station Page 1 of 1 Table 11-3. Field Permeability Test Results Borehole Category of Test Depth 1 of Test (ft bgs) Depth 2 of Test (ft bgs) Vertical Hydraulic Conductivity, k (cm/sec) Horizontal Hydraulic Conductivity, k (cm/sec) Hydrostratigraphic Layer AB-6S Well Point - Falling Head 10 13.5 - 5.11 E-04 A AB-6GTB Flush Bottom 8 - 8.08E-05 A AB-6GTB Well Point - Falling Head 10 13.5 - 4.33E-04 A AB-7S Flush Bottom 10 - 4.24E-04 A AB-7SL Well Point- Falling Head 23 28 - 9.66E-04 M1 AB-7SL Flush Bottom 23 - 4.20E-05 MI AB-8SL Flush Bottom 24 - 4.05E-04 A GWA-1 D Well Point - Falling Head 57.5 62.5 - 1.23E-05 BR GWA-1 S Flush Bottom 10.4 - 1.23E-06 M 1 GWA-1S Well Point- Falling Head 13 18 - 2.27E-05 M1 GWA-2D Well Point - Falling Head 55 60 - 3.62E-05 TZ GWA-4D Well Point - Falling Head 58 64 - 1.98E-05 TZ GWA-4S Flush Bottom 24 - 1.02E-04 M1 GWA-4S Well Point- Falling Head 7 12 - 7.07E-06 M1 GWA-5D Well Point - Falling Head 45.5 50.5 - 2.12E-04 TZ GWA-9D Well Point - Falling Head 75.5 80.5 - 1.09E-05 BR GWA-1OD Well Point - Falling Head 49 54 - 8.35E-06 BR GWA-7D Well Point - Falling Head 76 81 - 8.15E-06 BR AB-4BR Flush Bottom 40 - 7.04E-06 A AB-4BR Flush Bottom 73 - 2.62E-04 M2 AB-4BR Well Point - Falling Head 40 45 - 3.30E-04 A AB-4BR Well Point - Falling Head 73 79 - 1.07E-04 M2 AB-4D Well Point - Falling Head 85 93 - 5.29E-05 M2 AB-5GTB Flush Bottom 24 - 1.11 E-04 - A AB-5GTB Well Point - Falling Head 24 29 - 6.33E-04 A BG-1 S Well Point - Falling Head 18 23 - 5.73E-05 M 1 BG-1 S Well Point - Falling Head 35 40.5 - 3.91 E-05 M2 BG-2BR Well Point - Falling Head 80 84 - 5.25E-07 BR AB-4BR Packer Test 121.7 127.5 - 1.6E-04 BR AB-4BR Packer Test 135.3 141.1 - 1.33E-03 BR BG-2BR Packer Test 83 88 - No take at max pressure (-70 psi) BR BG-2BR Packer Test 104 109 - No take at max pressure (-80 psi) BR BG-2BR Packer Test 119 124 - No take at max pressure (--91 psi) BR GWA-5BR Packer Test 47.8 57.5 - 2.82E-05 BR GWA-5BR Packer Test 62 71.7 - 8.79E-06 BR GWA-5BR2 Packer Test 80.5 86.5 - 2.40E-04 BR GWA-5BR2 Packer Test 90.0 96 - 2.94E-05 BR GWA-5BR2 Packer Test 97.5 103.5 - 2.72E-05 BR GWA-12BR Packer Test 116.6 122.7 - 1.16E-05 BR GWA-12BR Packer Test 105.9 112 - 1.78E-05 BR GWA-12BR Packer Test 79.9 86 - 5.86E-06 BR MW-200BR Well Point - Falling Head 12.3 17.3 - BR MW-200BR Packer Test 45.3 50.3 - 1.56E-03 BR MW-200BR Packer Test 39 45 - 2.22E-04 BR MW-202BR Well Point - Falling Head 81 86 - 1.05E-04 TZ MW-202BR Packer Test 96 106 - 3.11 E-04 BR MW-203BR Well Point - Falling Head 70.5 75.5 - 4.18E-06 TZ MW-202BR Packer Test 106 116 - 3.24E-04 BR MW-203BR Packer Test 93.6 98.6 - 8.95E-05 BR MW-203BR Packer Test 101.5 106.5 - 1.55E-05 BR MW-203BR Packer Test 105.7 110.7 - 1.43E-05 BR Notes: 1. Refer to Section 11.2.1 for discussion of field procedures 2. Refer to Appendix H for calculation worksheets Belews Creek Steam Station Page 1 of 1 Table 11-4. Historic Field Permeability Test Results Horizontal Vertical Hydraulic Depth 1 of Test (ft Depth 2 of Test Hydraulic Hydrostratigraphic Borehole Category of Test Conductivity'k' bgs) (ft bgs) Conductivity'k' Layer (cm/sec) (cm/sec) BC-1A1 Well Point 66 75.7 - 2.88E-05 TZ BC-1A' Flush Bottom 8.9 - 1.27E-05 - M1 BC-1A' Flush Bottom 23.8 - 5.72E-06 - M2 BC-2A' Flush Bottom 18.6 - 2.49E-06 M1 BC-2A Flush Bottom 38.2 - 4.95E-04 - M2 BC-4A' Flush Bottom 9.5 - 1.39E-05 - M1 BC-4A1 Flush Bottom 19.5 - 4.98E-06 - M2 BC-4A' Flush Bottom 29.5 - 1.07E-05 - M2 BC-6A Flush Bottom 8.4 - 1.05E-05 - M1 MW2-2A' Well Point 73.5 89.9 - 5.53E-06 M2/BR MW2-2A1 Flush Bottom 28.5 - 1.25E-05 - M1 PZ-01 D2 Flush Bottom 30.7 - 7.15E-05 - A PZ-01 D2 Flush Bottom 45.6 - 2.55E-04 - A PZ-01 D2 Well Point 56 59.5 - 4.75E-06 M1 PZ-02D2 Flush Bottom 30.8 - 1.33E-05 - A PZ-02D2 Well Point 70.4 77.8 - 2.67E-05 M2 PZ-03D2 Well Point 75.8 83.3 - 1.24E-04 M1 PZ-04DA2 Well Point 78.5 86.5 - 9.82E-05 M1 PZ-05D2 Flush Bottom 25.7 - 3.73E-04 - A PZ-05D2 Well Point 76 79.5 - 5.91 E-06 M1 PZ-05S2 Flush Bottom 69.3 - 1.75E-04 -I A Notes: 1. Refer to Appendix H for historic field permeability calculation worksheets 2. Historic boring logs (Appendix H) were used in the hydrostratigraphic characterization of test intervals. References: 1. Geology/Hydrogeology of the Existing Belews Creek Ash Landfill (Permit #85-03) and Proposed Ash Landfill Expansion Site. Developed by Duke Engineering Services, dated September 18, 2001. Project No. 00003.08.0080.00.00000 2. Belews Creek Pine Hall Ash Landfill (Permit #85-03), Investigation of the Water Level in Observation Well OB-1. Developed by DTA, Inc., dated February 10, 2005. DTA Project No. 024.0069.0000 Belews Creek Steam Station Page 1 of 1 Table 11-5. Slug Test Permeability Results Borehole Depth 1 of Test (ft b s g) Depth 2 of Test (ft s b g) Horizontal HydraulicHydrostratigraphic Conductivity W (cm/sec) Layer y Contractor AB-1 D 73 78 5.06E-03 BR Terracon AB-1S 35 50 3.99E-04 M1/M2 Terracon AB-2D 132 137 2.80E-03 BR Terracon AB-2S 31 46 8.52E-06 F Terracon AB-3D 111 116 7.57E-06 BR Terracon AB-3S 36 51 3.22E-03 M 1 Terracon AB-4BR 137.5 142.5 3.06E-02 BR Terracon AB-4D 89.5 94.5 8.08E-04 TZ Terracon AB-4S 3 18 1.30E-03 A Terracon AB-4SL 51.3 61.3 4.20E-03 A Terracon AB-5D 97 102 2.76E-03 TZ/BR Terracon AB-5S 3 18 1.23E-02 A Terracon AB-5SL 34 44 3.03E-03 A Terracon AB-6D 85 90 5.60E-03 TZ Terracon AB-6S 2 12 3.28E-03 A Terracon AB-6SL 13.3 18.3 2.37E-03 A Terracon AB-7D 84 89 1.43E-04 BR Terracon AB-7S 5 15 4.62E-04 A Terracon AB-8D 72 77 5.17E-03 TZ Terracon AB-8S 4 19 7.10E-04 A Terracon AB-8SL 37 47 8.04E-04 A Terracon AB-913R 130 135 1.14E-03 BR Terracon AB-9D 90 95 3.54E-04 BR Terracon AB-9S 13 28 2.68E-05 M1 Terracon BG-1 D 47 52 - BR Terracon BG-1 S 26 41 - M2 Terracon BG-2BR 80.5 85.5 - BR ERM BG-2D 70 75 6.95E-05 BR ERM BG-2S 40 55 3.76E-03 M1 ERM BG-3D 62 67 2.49E-03 TZ Terracon BG-3S 25 40 6.54E-05 M 1 Terracon GWA-1 D 58 63 3.43E-07 BR Terracon GWA-1S 19 34 8.89E-06 M1/M2 Terracon GWA-21D 58 63 1.24E-03 BR Terracon GWA-2S 34 49 1.25E-04 M2 Terracon GWA-31D 45 50 9.66E-05 TZ ERM GWA-3S 27 42 - M1/M2 Terracon GWA-41D 64 69 2.95E-05 BR Terracon GWA-5BR2 80 85 1.99E-03 BR Terracon GWA-51D 51.8 56.8 1.10E-04 TZ Terracon GWA-5S 23 38 1.57E-04 M1/M2 Terracon GWA-61D 101 106 1.00E-03 TZ/BR ERM Belews Creek Steam Station Page 1 of 2 Table 11-5. Slug Test Permeability Results Borehole Depth 1 of Test (ft b s g) Depth 2 of Test (ft s b g) Horizontal HydraulicHydrostratigraphic Conductivity W (cm/sec) Layer y Contractor GWA-6S 28 43 1.93E-04 M1 Terracon GWA-71D 79 84 - BR ERM GWA-7S 27.5 42.5 6.09E-04 M1 ERM GWA-81D 89 94 1.17E-04 BR Terracon GWA-8S 20 35 1.60E-04 M1 Terracon GWA-91D 83 88 1.15E-05 BR Terracon GWA-9S 36 51 6.17E-04 M1 Terracon GWA-10D 50.5 55.5 1.12E-05 BR Terracon GWA-10S 4 19 7.49E-04 M1 Terracon GWA-11 D 63 68 3.39E-06 BR Terracon GWA-11S 23 38 2.02E-04 M1 Terracon GWA-12BR 106 111 2.33E-04 BR Terracon GWA-12D 63 68 3.37E-03 BR Terracon GWA-12S 40 55 - M2 Terracon GWA-16D 58 63 2.43E-06 BR Terracon GWA-16S 29 44 1.91E-05 M1/M2 Terracon GWA-17D 50 55 5.27E-05 TZ ERM GWA-17S 25 40 - M1 Terracon MW-200BR 45 50 - BR Terracon MW-202BR 98 103 1.02E-04 BR Terracon MW-203BR 94 99 4.42E-04 BR ERM Notes: 1. Slug test data in which test interval bridges hydrostratigraphic layers were not used in the statistical analysis. 2. Refer to Appendix H for procedures and full reports. Belews Creek Steam Station Page 2 of 2 Table 11-6. Historic Slug Test Permeability Results Depth 1 of Test (ft Depth 2 of Test (ft Horizontal Hydraulic Borehole Hydrostratigraphic Layer b s) Conductivit 'k' cm/sec BC-20� 11.6 21.6 1.25E-03 M1 / M2 BC-21 1 3.9 13.9 1.15 E-03 M 1 BC-221 3 13 2.92E-03 M1 / M2 BC-23A' 76.7 101.7 6.06E-05 M2 / TZ BC-251 6.5 21.5 6.17E-04 M2 BC-261 7 22 3.69E-04 M 1 BC-27 t 21 36 5.39E-04 M 1 BC-28' 43.2 58.2 1.19E-05 M1 / M2 / BR BC-291 5 20 1.53E-03 - BC-30' 17 32.2 1.99E-04 - BC-31 1 60 80 5.62E-05 - BC-71 37.3 52.3 3.55E-05 TZ / BR MW-12 33.1 43.1 8.86E-05 M1 / M2 M1W-22 43.2 47.9 2.69E-04 M1 / M2 MW-42 28.2 38.2 1.50E-04 M1 / M2 MW -52 48.3 58.3 9.19E-05 M 1 MW-63 30.2 34 2.10E-04 M 1 MW-101 D4 30 35 2.86E-04 BR MW-101 S4 5 15 1.06E-03 M1 MW-102D4 14 19 2.10E-06 BR MW-102S4 5 13 1.23E-04 M1 MW-103D4 22 27 2.16E-04 BR MW-103S4 5 10 9.89E-04 M1 MW-104D4 79 84 4.23E-05 BR M W -10454 33 43 1.15E-05 M 1 MW-200D5 11.5 16.5 4.78E-02 TZ MW-200S5 2.4 10 2.26E-03 F / M2 MW-201 D5 30.8 40.8 1.19E-03 BR MW-202D5 84 89 2.55E-05 M2 / TZ MW-202S5 37 57 2.25E-04 M1 MW-203D5 84.4 89.4 1.43E-02 TZ MW-203S5 24.6 39.6 3.87E-02 M1 MW-204D5 33 38 7.62E-03 BR M W -20455 16 31 5.54E-02 M 1 MW2-13 31.5 41.5 9.70E-05 M2 M W 2-23 27 37 3.10E-04 M 1 MW2-33 39.3 59.3 7.80E-05 M2 / TZ / BR M W 2-43 38 58 7.40E-04 TZ MW2-53 34 54 9.90E-04 M2 / TZ / BR MW-42 28.2 38.2 1.50E-04 M1 / M2 MW-52 48.3 58.3 9.19E-05 M 1 Notes: 1. Historic boring logs (Appendix H) were used in the hydrostratigraphic characterization of screen intervals. 2. Historic slug test results in which test interval bridges hydrostratigraphic layers were not used in the statistical analysis. 3. Hydrostratigraphic layers were not characterized for BC-29, BC-30, or BC-31 due to lack of SPT or Recovery/RQD. 4. See Appendix H for referenced historic slug tests and historic boring logs. 5. Slug test results from CRHS-series wells (S&ME Project No. 1356-10-0416) were not used in the statistical analysis. See Appendix H for CRHS-series k-values. References: 1 Water Quality Monitoring Plan--FGD Scrubber Residue Landfill Report. Developed by S&ME, dated December 7, 2007. S&ME Project No. 1054-04-955 2 Soil Test Boring Field Reports. Developed by Duke Power Company Construction Department, field operations dated August 1989. 3 Geology/Hydrogeology of the Existing Belews Creek Ash Landfill (Permit #85-03) and Proposed Ash Landfill Expansion Site. Developed by FRAMATOME ANP, dated September 18, 2001. Project No. 00003.08.0080.00.00000 4 Belews Creek Ash Basin Monitoring Well Installation Report. Developed by Qore, dated January 17, 2007. Qore Job No. 7598.2 5 Ash Basin Monitoring Well Installation Report. Developed by MACTEC, dated January 21, 2011. MACTEC Project No. 6228-10-5284 6 Water Quality Monitoring Plan - Phase 1/Phase 2, Craig Road Landfill Expansion. Developed by S&ME, dated April 26, 2014. S&ME Project No. 1356-10-041 Belews Creek Steam Station Page 1 of 1 Table 11-7. Laboratory Permeability Test Results Borehole Depth 1 of Test (ft bgs) Depth 2 of Test (ft bgs) Vertical Hydraulic Conductivity'k' cm/sec Hydrostratigraphic Layer AB-1 S 10 12 8.60E-07 F AB-1 S 15 17 2.32E-05 F AB-1 S 20 22 1.05E-05 F AB-1S 35 37 1.05E-04 M1 A13-2D 10 12 8.44E-07 F AB-2D 30 32 2.20E-06 F AB-2Sa 64 66 1.14E-06 F AB-31D 20 22 2.40E-05 F AB-3D 45 47 1.25E-04 M1 A13-3S 28 30 8.63E-07 F AB-413R 68 70 3.61E-05 M1 AB-4BR 73 75 6.35E-05 M2 AB-5GTB 55 56 7.46E-05 M1 AB-6GTB 6 8 4.75E-04 A AB-7SL 7 9 6.08E-04 A AB-7SL 20 22 1.42E-06 M1 AB-8SL 52 53.1 6.96E-06 M1 AB-9D 60 62 3.03E-05 M1 AB-9GTB 45 47 4.00E-05 M1 BG-1S 15 16.9 2.33E-04 M1 BG-1 S 34.45 36.8 1.67E-04 M2 BG-2S 55 57 3.17E-05 M1 BG-3S 40 42 4.66E-05 M1 GWA-1Sa 4 5.5 1.02E-04 M1 GWA-2D 39 41 7.78E-05 M1 GWA-4S 8 10 1.03E-04 M1 GWA-4S 15 17 4.06E-04 M1 GWA-5Sa 28 30 7.41E-05 M1 GWA-7S 42.5 43.3 6.10E-05 M1 GWA-8S 33 34.5 6.48E-05 M2 GWA-9GTB 60 62 1.56E-05 M2 GWA-10S 24 26 1.38E-04 M1 GWA-11 D 42 42.6 5.39E-05 M2 GWA-12D 25 27 2.30E-04 M1 MW-200BR 4 5.1 1.33E-05 M1 Notes: 1. Vertical hydraulic conductivity values from laboratory testing in accordance with ASTM Standard D 5084 2. Refer to Appendix H for laboratory reports. Belews Creek Steam Station Page 1 of 1 Table 11-8. Total Porosity for Upper Hydrostratigraphic Units (A, F, S, M1, and M2) Total Porosity Hydrostratigraphic Unit N Mean (%) Median (%) Mean + 1SD (%) Mean - 1SD (%) Minimum (%) Maximum (%) Ash 4 47.3% 44.5% 54.8% 39.8% 42.0% 58.3% Fill 12 43.9% 44.3% 46.4% 41.5% 40.2% 49.2% M1 1 25 11 44.40o 1 44.5% 1 46.8% 1 42.0% 1 39.4% 1 51.1% M2 1 6 1 43.4% 1 42.8% 1 47.9% 1 38.8% 1 38.1 % 1 50.7% Notes: 1. Total porosity estimated from soil testing, using both Fetter/Bear Diagrams (Johnson, 1967) and results from Laboratory Conductivity testing. Belews Creek Steam Station Page 1 of 1 Table 11-9. Estimated Effective Porosity/Specific Yield and Specific Storage for Upper Hydrostratigraphic Units (A, F, S, M1, and M2) Effective Porosity/Specific Yield (%) Specific Storage (1/ft) Hydrostratigraphic Unit N Mean (%) Median (%) Mean + 1SD % Mean - 1SD % Minimum (%) Maximum (%) Ash 7 23.5% 27.5% 36.4% 10.5% 3.8% 35.0% - Fill 21 15.0% 16.0% 20.9% 9.1 % 4.5% 25.0% 6.1 E-05 - 4.0E-05 M1 63 1 22.1 % 1 24.0% 1 28.4% 1 15.8% 1 4.0% 1 34.0% 3.0E-04 - 1.5E-05 M2 29 1 29.3% 1 30.0% 1 31.3% 1 27.2% 1 24.5% 1 34.0% 1.5E-05 - 6.2E-05 Notes: 1. Effective porosity/specific yield estimated from soil testing using Fetter/Bear Diagrams (Johnson, 1967). 2. Effective porosity and specific yield are not synonymous. For practical purposes, they may be estimated as approximately equal in value. 3. Specific Storage ranges based on published values (Domenico and Mifflin, 1965). Alluvium and M1 fall within the same range of values. 4. For historic data derived from S&ME Project 1357-10-041, adjusted grain size distributions were used in the statistical analysis. Belews Creek Steam Station Page 1 of 1 Table 11-10. Hydrostratigraphic Layer Properties - Horizontal Hydraulic Conductivity Hydrostratigraphic Unit N Geometric Mean (cm/sec) Geometric Mean + 1SD (cm/sec) Geometric Mean - 1SD (cm/sec) Geometric Median (cm/sec) Minimum (cm/sec) Maximum (cm/sec) Ash 12 1.0E-03 2.5E-03 4.2E-04 7.6E-04 3.3E-04 4.2E-03 Fill 19 4.9E-05 2.4E-04 1.0E-05 5.6E-05 2.9E-06 3.5E-03 M1 28 1.9E-04 1.1 E-03 3.5E-05 2.1 E-04 4.7E-06 3.8E-03 M2 7 8.9E-05 2.5E-04 3.2E-05 9.7E-05 2.7E-05 6.2E-04 Transition Zone (TZ) 16 3.4E-04 4.8E-03 2.4E-05 1.5E-04 4.2E-06 4.8E-02 Bedrock (BR) 48 1 9.1 E-05 1 1.1 E-03 7.8E-06 9.6E-05 5.2E-07 3.1 E-02 Notes: 1. Hydraulic Conductivity, 'k,' values have an approximate lognormal distribution. Geometric mean, median, and standard deviation estimated by taking the log of the values and running standard statistics on the log values, then converting those values back. 2. Dataset derived from CSA Investigation and historical reports. Refer to tables 11-3, 11-5 and 11-7 for historic conductivity data. 3. Fill dataset derived from Allen (N=4), Belews (N=1), Buck (N=1), Cliffside (N=4), Dan River (N=3), Marshall (N=3), and Riverbend (N=3) CSA Investigations Belews Creek Steam Station Page 1 of 1 Table 11-11. Hydrostratigraphic Layer Properties - Vertical Hydraulic Conductivity Hydrostratigraphic Unit N Geometric Mean (cm/sec) Geometric Mean + 1SD (cm/sec) Geometric Mean 1SD (cm/sec) Geometric Median (cm/sec) Minimum (cm/sec) Maximum (cm/sec) Ash 11 1.8E-04 5.7E-04 5.8E-05 2.6E-04 1.3E-05 6.1 E-04 Fill 8 3.1 E-06 1.4E-05 7.0E-07 1.6E-06 8.4E-07 2.4E-05 M1 33 4.5E-05 1.9E-04 1.1E-05 6.1 E-05 1.4E-06 2.4E-05 M2 10 4.3E-05 2.1 E-04 8.7E-06 5.9E-05 5.0E-06 5.0E-04 Transition Zone (TZ) - - - - - - - Bedrock (BR) - - - - - - Notes: 1. Hydraulic Conductivity, `k,' values have an approximate lognormal distribution. Geometric mean, median, and standard deviation estimated by taking the log of the values and running standard statistics on the log values, then converting those values back. 2. Dataset derived from CSA Investigation and historical reports. Refer to tables 11-3, 11-5, and 11-7 for historic conductivity data. 3. Vertical hydraulic conductivity values for the TZ and BR could not be measured in the field or laboratory. Vertical and horizontal conductivity for these layers are unlikely to be equal. Consider to be equal as an initial assumption and adjust as necessary during flow model calibration. Belews Creek Steam Station Page 1 of 1 Table 11-12. Total Porosity, Secondary (Effective) Porosity/Specific Yield, and Specific Storage for Lower Hydrostratigraphic Units (TZ and BR) Hyd rostrati graph i c Unit Secondary (Effective) Total Porosity (%) S p Storage g ( 1/ft ) Specific ° Porosity / Specific Yield (/°) Transition Zone (TZ) 0.00005 - 0.01 1.0 - 10.0 1.0E-06 - 2.1 E-05 Bedrock (BR) 0.0005 0.01 - 1.0 < 1.0E-06 Notes: 1. Ranges based on published values (Sanders, 1998; Domenico and Mifflin, 1965). 2. Effective porosity and specific yield are not synonymous. For practical purposes, they may be estimated as approximately equal in value. Belews Creek Steam Station Page 1 of 1 Table 11-13. Hydraulic Gradients - Vertical Well Water Table Elevation (ft, msl) Total Well Depth (ft, b s) Vertical Gradient (ft/ft) 1,2 GWA-2D 745.22 70 0.0252 GWA-2S 745.70 51 A B-2 D 730.91 139 -0.1117 AB-2S 740.85 50 M W-200D 629.34 19.5 0.0475 M W-200S 629.02 12.76 GWA-11D 723.15 72 -0.1836 GWA-11S 725.72 58 BG-3D 812.98 71 0.0437 BG-3S 811.80 44 MW-202D 741.48 91.4 0.0169 M W-202S 740.95 60.01 GWA-8 D 801.95 97 -0.0205 GWA-8S 803.14 39 GWA-6 D 753.49 109 70 -0.1849 GWA-6S 760.70 A B-6 D 758.54 94.6 0.0235 AB-6S 760.48 12 A B-8 D 756.90 84.7 -0.0044 AB-8S 757.18 21 BG-2 D 763.92 70 0.183 BG-2S 762.09 60 GWA-3 D 726.02 59 -0.0038 GWA-3S 726.08 43 GWA-5 D 760.37 60.5 -0.0073 GWA-5S 760.52 40 A B-8 D 756.90 84.7 -0.0044 AB-8S 757.18 21 AB-41) 754.93 94.5 0.0065 AB-4S 755.43 18 M W-204D 747.82 41.07 -0.0098 M W-204S 747.89 33.94 GWA-16D 747.37 69 -0.0318 GWA-16S 748.07 47 GWA-10D 739.20 64 -0.0273 GWA-10S 740.24 26 GWA-9 D 749.82 90.5 -0.0283 GWA-9S 750.88 53 M W-104D 756.75 83.02 0.0027 M W-104S 756.65 45.64 M W-103 D 676.28 29.5 0.0541 M W-103S 677.15 13.43 M W-203 D 1 752.25 1 91.86 0.0002 M W-203S 1 752.24 1 42.511 Belews Creek Steam Station Page 1 of 1 Table 11-14. Groundwater Velocities Well Pair Ash Fill Alluvium M1 M2 TZ BR Regolith (S wells); Seepage Velocity (ft/yr) GWA-8S / MW-200S 131.6 9.8 - 25.8 9.1 - AB-7S / AB-5S 13.6 1.0 - 2.7 0.9 - GWA-5S / MW-103S 113.4 8.5 - 22.3 7.9 - GWA-9S / GWA-11 S 27.2 2.0 - 5.3 1.9 - - GWA-5S / MW-200S 149.7 11.2 - 29.4 10.4 - - Transition Zone (D Wells); Seepage Velocity (ft/yr) GWA-8D / MW-200D - - - - - 1.0E+05 to 2.0E+07 - AB-9D / AB-51D - - 7.0E+03 to 1.4E+06 - GWA-7D / AB-61D - - 4.9E+04 to 9.9E+06 - GWA-9D / GWA-11 D - - 2.1 E+04 to 4.2E+06 - GWA-5D / MW-200D - - 1.1 E+05 to 2.3E+07 - BG-1 D / MW-200D - - 1.1E+05 to 2.3E+07 - GWA-12D / MW-202D* - - 6.0E+05 to 1.2E+08 - Fractured Bedrock (BR Wells); Seepage Velocity (ft/yr) Not enough data to determine hydraulic gradient Notes: 1. Refer to Table 11-10 for horizontal hydraulic conductivity values. 2. Refer to Table 6-9 for horizontal hydraulic gradients. 3. Refer to Tables 11-9 and 11-12 for effective porosity/specific yield for upper and lower hydrostratigraphic units, respectively. 4. Alluvium (S) was not encountered in any of the new boreholes or historic boreholes in the area of the BCSS ash basin * Not used for average hydraulic gradient calculation Belews Creek Steam Station Page 1 of 1 Table 12-1. Selection of Human Health COPCs - Groundwater Total or Dissolved (T or D) Contaminant Group Contaminant CASRN Frequency of Detection o ( �O) Range of Detection Location of Maximum Detected Concentration Range of Detection Limits Maximum Reporting Limit Concentration Used for Screening (1) USEPA Tapwater RSLs (2) 15A NCAC 02L .0202 GWQS (3) NC IMAC (4) Groundater w COPC? (Y/N) Rationale for Selection or Deletion (5) Minimum Detected Concentration Q Maximum Detected Concentration Q T INORGANIC Aluminum 7429-90-5 90 58 J 9600 AB-1S 10-100 100 9600 2000 NA NA Y 1 T INORGANIC Antimony 7440-36-0 63 0.16 J 8.1 AB-2S 0.5-0.5 0.5 8.1 0.78 NA 1 Y 1 T INORGANIC Arsenic 7440-38-2 83 0.12 J 79.1 MW-103S 0.5-0.5 0.5 79.1 0.052 10 NA Y 1 T INORGANIC Barium 7440-39-3 97 3.1 J 490 GWA-11S 5-5 5 490 380 700 NA Y 1 T INORGANIC Beryllium 7440-41-7 53 0.068 J 6.6 GWA-11S 0.2-0.2 0.2 6.6 2.5 NA 4 Y 1 T INORGANIC Boron 7440-42-8 58 30 J 13200 AB-3S 50-1000 1000 13200 400 700 NA Y 1 T INORGANIC Cadmium 7440-43-9 67 0.025 J 3.8 MW-103D 0.08 - 0.08 0.08 3.8 0.92 2 NA Y 1 T INORGANIC Chromium (Total) 7440-47-3 100 0.23 J 50.7 GWA-17S 0.5-0.5 0.5 50.7 2200 10 NA Y 1 T INORGANIC Cobalt 7440-48-4 75 0.17 J 413 MW-102S 0.5-0.5 0.5 413 0.6 NA 1 Y 1 T INORGANIC Copper 7440-50-8 88 0.24 J+ 38.6 AB-4D 1 - 1 1 38.6 80 1000 NA N 2 T INORGANIC Iron (Fe) 7439-89-6 97 35 J 92200 MW-103S 50-50 50 92200 1400 300 NA Y 1 T INORGANIC Lead 7439-92-1 83 0.051 J 2.8 GWA-9S 0.1 - 0.5 0.5 2.8 15 15 NA N 2 T INORGANIC Manganese (Mn) 7439-96-5 92 2.9 J 21300 MW-102S 5-100 100 21300 43 50 NA Y 1 T INORGANIC Mercury 7439-97-6 17 0.00115 - 0.47 GWA-10S 0.0005 - 0.2 0.2 0.47 0.063 1 NA Y 1 T INORGANIC Molybdenum 7439-98-7 87 0.1 J 38.3 GWA-5BR 0.5-0.5 0.5 38.3 10 NA NA Y 1 T INORGANIC Nickel 7440-02-0 97 0.21 J 47.9 MW-103D 0.5-0.5 0.5 47.9 39 100 NA Y 1 T INORGANIC Selenium 7782-49-2 38 0.22 J 10.6 GWA-10S 0.5-0.5 0.5 10.6 10 20 NA Y 1 T INORGANIC Sodium 7440-23-5 95 2540 J 35900 MW-102S 5000 - 5000 5000 35900 NA NA NA Y 4 T INORGANIC Strontium 7440-24-6 100 5.7 940 AB-2D 5-5 5 940 1200 NA NA N 2 T INORGANIC IThallium 7440-28-0 55 0.017 J+ 3.6 MW-103D 0.1 - 0.5 0.5 3.6 0.02 NA 0.2 Y 1 T INORGANIC lVanadium 7440-62-2 72 0.29 J 47.2 AB-2S 1 - 1 1 47.2 8.6 NA 0.3 Y 1 T INORGANIC jZinc 7440-66-6 77 2.7 J+ 48 MW-102S 10-10 10 48 600 1000 NA N 2 Notes: All units are in ug/L The applicable criteria for chromium III was input as a surrogate for chromium total when none was available. The speciation data for chromium was not available. (1) Maximum concentration. If contaminant was not detected, reporting limit (RL) was entered per 15A NCAC 02L. (2) USEPA Regional Screening Level Generic Tables, Residential Tapwaters, June 2015. http://www.epa.gov/reg3hwmd/risk/human/rb-concentration_table/Generic_Tables/index.htm Target Risk = 1 E-06 and Target Hazard Quotient = 0.1 (3) North Carolina 15A NCAC 02L .0202 Groundwater Standards, Effective April 1, 2013. http://portal.ncdenr.org/web/wq/ps/csu/gwstandards (4) North Carolina Interim Maximum Allowable Concentrations (IMAC) http://portal.ncdenr.org/web/wq/ps/csu/gwstandards (5) Rationale for Selection/Deletion: 1 - Contaminant concentration exceeds screening value. 2 - Contaminant concentration and RL are less than screening value. 3 - Contaminant was not found in concentrations exceeding the screening value; however the RL exceeds the screening value. 4 - Contaminant was found in concentrations exceeding its RL; however, there is no current screening value for the contaminant. 5 - Contaminant was not found in concentrations exceeding its RL; however, there is no current screening value for the contaminant. 6 - Contaminant concentration was nondetect and set to equal the RL; there is no current screening value for the contaminant. Qualifiers: J - Estimated Concentration J+ - Concentration Biased High - No Qualifier Abbreviations: CASRN - Chemical Abstract Service Registry Number COPC - Contaminant of Potential Concern GWQS - Groundwater Quality Standards IMAC - Interim Maximum Allowable Concentrations NA - No Criteria/Not Applicable ND - Not Detected Q - Data Qualifier RL - Reporting Limit RSL - Regional Screening Level USEPA - United States Environmental Protection Agency Belews Creek Steam Station Page 1 of 1 Table 12-2. Selection of Human Health COPCs - Soil Total or Dissolved IT or D) Contaminant Group Contaminant CASRN Frequency of Detection N Range of Detection Range of Detection Limits Maximum Reporting Limit Concentration Used for Screening (1) USEPA Industrial Soils RSL (2) Soil COPC? (Y/N) Rationale for Selection or Deletion (3) Minimum Detected Concentration Q Maximum Detected Concentration Q Location of Maximum Detected Concentration T INORGANIC Aluminum 7429-90-5 100 2050 29900 - GWA-11 D 5.7 - 41.6 41.6 29900 110000 N 2 T INORGANIC Antimony 7440-36-0 0 ND ND - ND 2.8 - 8.3 8.3 8.3 47 N 2 T INORGANIC Arsenic 7440-38-2 61 1.6 J 128 - AB-1S 2.8 - 8.3 8.3 128 3 Y 1 T INORGANIC Barium 7440-39-3 100 18.6 620 J- GWA-9GTB 0.57 - 4.2 4.2 620 22000 N 2 T INORGANIC Beryllium 7440-41-7 97 0.22 J 9.1 - GWA-11 D 0.06 - 0.42 0.42 9.1 230 N 2 T INORGANIC Boron 7440-42-8 43 4 30.5 J- GWA-9GTB 2.8 - 72.1 72.1 30.5 23000 N 2 T INORGANIC Cadmium 7440-43-9 2 0.22 J 0.22 J GWA-6S 0.33 - 1 1 0.22 98 N 2 T INORGANIC Chromium (Total) 7440-47-3 93 0.63 J+ 54.6 J- GWA-9GTB 0.28 - 2.1 2.1 54.6 180000 N 2 T INORGANIC Cobalt 7440-48-4 84 2.2 J 161 - SB-3 2.8 - 8.3 8.3 161 35 Y 1 T INORGANIC Copper 7440-50-8 98 0.86 J+ 50.2 - AB-2D 0.28 - 2.1 2.1 50.2 4700 N 2 T INORGANIC Iron (Fe) 7439-89-6 100 912 45800 - GWA-11 D 2.3 - 25.8 25.8 45800 82000 N 2 T INORGANIC Lead 7439-92-1 98 3.7 J 45.8 - GWA-2D 2.8 - 8.3 8.3 45.8 800 N 2 T INORGANIC Manganese (Mn) 7439-96-5 100 18.5 1390 - AB-9S 0.28 - 2.1 2.1 1390 2600 N 2 T INORGANIC Mercury 7439-97-6 23 0.0047 J 0.062 - AB-6D 0.0085 - 0.013 0.013 0.062 4 N 2 T INORGANIC Molybdenum 7439-98-7 10 1.3 2.7 J GWA-2D 0.56 - 4.2 4.2 2.7 580 N 2 T INORGANIC Nickel 7440-02-0 87 0.27 J 43.1 GWA-1S 0.28 - 2.1 2.1 43.1 2200 N 2 T INORGANIC Selenium 7782-49-2 13 2.3 J 11.3 - AB-8D 2.8 - 8.3 8.3 11.3 580 N 2 T INORGANIC Sodium 7440-23-5 13 37.8 J 228 J GWA-8D 55.5 - 416 416 228 NA Y 5 T INORGANIC Strontium 7440-24-6 67 0.86 29.5 - AB-8D 0.56 - 6.4 6.4 29.5 70000 N 2 T INORGANIC Thallium 7440-28-0 0 ND I - ND - ND 2.8 - 8.3 8.3 8.3 1.2 Y 3 T I INORGANIC IVanadium 7440-62-2 1 95 5.1 1 J 117 J AB-9S 2.8 - 8.3 8.3 156 580 N 2 T I INORGANIC jZinc 7440-66-6 1 100 3.8 1 J 1 163 1 - I AB-7D 1 1.1 - 8.3 1 8.3 1 163 1 35000 1 N 1 2 Notes: All units are in mg/kg The applicable criteria for chromium III was input as a surrogate for chromium total when none was available. The speciation data for chromium was not available. (1) Maximum concentration. If contaminant was not detected, reporting limit (RL) was entered. (2) USEPA Regional Screening Level Generic Tables, Industrial Soil, June 2015. http://www.epa.gov/reg3hwmd/risk/human/rb-concentration_table/Generic_Tables/index.htm Target Risk = 1 E-06 and Target Hazard Quotient = 0.1 (3) Rationale for Selection/Deletion: 1 - Contaminant concentration exceeds screening value. 2 - Contaminant concentration and RL are less than screening value. 3 - Contaminant was not found in concentrations exceeding the screening value; however the RL exceeds the screening value. 4 - Contaminant was found in concentrations exceeding its RL; however, there is no current screening value for the contaminant. 5 - Contaminant was not found in concentrations exceeding its RL; however, there is no current screening value for the contaminant. 6 - Contaminant concentration was nondetect and set to equal the RL; there is no current screening value for the contaminant. Qualifiers: J - Estimated Concentration J+ - Concentration Biased High - No Qualifier Abbreviations: CASRN - Chemical Abstract Service Registry Number COPC - Contaminant of Potential Concern NA - No Criteria/Not Applicable ND - Not Detected Q - Data Qualifier RL - Reporting Limit RSL - Regional Screening Level USEPA - United States Environmental Protection Agency Belews Creek Steam Station Page 1 of 1 Table 12-3. Selection of Human Health COPCs - Surface Water Total or Dissolved IT or D) Contaminant Group Contaminant CASRN Frequency of Detection (ado) Range of Detection Location of Maximum Detected Concentration Range of Detection Limits Maximum Reporting Limit Concentration Used for Screening (1) NC Water Supply (WS) WQS & EPA National WQC (2) NC Human Health (HH) WQS & EPA National WQC (3) Surface Water COPC? (Y/N) Rationale for Selection or Deletion (4) Minimum Detected Concentration Q Maximum Detected Concentration Q T INORGANIC Antimony 7440-36-0 25 0.56 0.56 - SW-DR-D 0.5-0.5 0.5 0.56 5.6 640 N 2 T INORGANIC Arsenic 7440-38-2 100 0.26 J 3.1 - SW-DR-D 0.5-0.5 0.5 3.1 10 10 N 2 T INORGANIC Barium 7440-39-3 100 18 50 - SW-DR-D 5-5 5 50 1000 200000 N 2 T INORGANIC Beryllium 7440-41-7 25 0.12 J 0.12 J SW-DR-D 0.2-0.2 0.2 0.12 NA NA Y 5 T INORGANIC Boron 7440-42-8 75 71 7900 - SW-DR-D 50-50 50 7900 NA NA Y 4 T INORGANIC Cadmium 7440-43-9 25 0.042 J 0.042 J SW-DR-D 0.08 - 0.08 0.08 0.042 NA NA Y 4 T INORGANIC Chromium (Total) 7440-47-3 100 0.36 J 1.7 - SW-DR-D 0.5-0.5 0.5 1.7 NA NA Y 4 T INORGANIC Cobalt 7440-48-4 50 0.22 J 1.2 - SW-DR-D 0.5-0.5 0.5 1.2 3 4 N 2 T INORGANIC Copper 7440-50-8 100 0.84 J 1.1 - SW-BL-D 1 - 1 1 1.1 NA NA Y 4 T INORGANIC Lead 7439-92-1 75 0.059 J 0.48 - SW-DR-U 0.1 - 0.1 0.1 0.48 NA NA Y 4 T INORGANIC Manganese (Mn) 7439-96-5 100 8 240 - SW-DR-D 5-5 5 240 NA NA Y 4 T INORGANIC Mercury 7439-97-6 100 0.000505 0.00233 J+ SW-DR-U 0.0005 - 0.0005 0.0005 0.00233 NA NA Y 4 T INORGANIC Molybdenum 7439-98-7 100 0.14 J 10.1 - SW-DR-D 0.5-0.5 0.5 10.1 160 2000 N 2 T INORGANIC Nickel 7440-02-0 100 0.2 J 1.5 - SW-DR-D 0.5-0.5 0.5 1.5 25 NA N 2 T INORGANIC Selenium 7782-49-2 75 0.36 J 2.6 - SW-DR-D 0.5-0.5 0.5 2.6 NA NA Y 4 T INORGANIC Sodium 7440-23-5 100 3680 J 8190 - SW-DR-D 5000 - 5000 5000 8190 NA NA Y 4 T INORGANIC Strontium 7440-24-6 100 38 450 - SW-DR-D 5-5 5 450 14000 40000 N 2 T INORGANIC Thallium 7440-28-0 75 0.016 1 J 0.55 - SW-DR-D 0.1 - 0.1 0.1 0.55 0.24 0.47 Y 1 T INORGANIC Vanadium 7440-62-2 100 0.82 J 3.4 - SW-DR-D 1 - 1 1 3.4 NA NA Y 4 T INORGANIC Zinc 7440-66-6 25 2.8 J 2.8 J SW-DR-D 10-10 10 2.8 NA NA Y 5 Notes: All units are in ug/L Dissolved concentrations are compared to applicable criteria. The applicable criteria for chromium III was input as a surrogate for chromium total when none was available. The speciation data for chromium was not available. (1) Maximum concentration. If contaminant was not detected, reporting limit (RL) was entered. (2) 15A NCAC 2B or EPA National Water Quality Criteria (http://portal.ncdenr.org/c/document_library/get_file?uuid=dfc89f23-a372-4782-b3b0-60e6884b1696&groupld=38364) (3) 15A NCAC 26 or EPA National Water Quality Criteria (http://portal.ncdenr.org/c/document_library/get_file?uuid=dfc89f23-a372-4782-b3b0-60e6884b1696&groupld=38364) (4) Rationale for Selection/Deletion: 1 - Contaminant concentration exceeds screening value. 2 - Contaminant concentration and RL are less than screening value. 3 - Contaminant was not found in concentrations exceeding the screening value; however the RL exceeds the screening value. 4 - Contaminant was found in concentrations exceeding its RL; however, there is no current screening value for the contaminant. 5 - Contaminant was not found in concentrations exceeding its RL; however, there is no current screening value for the contaminant. 6 - Contaminant concentration was nondetect and set to equal the RL; there is no current screening value for the contaminant. Qualifiers: J - Estimated Concentration J+ - Concentration Biased High - No Qualifier Abbreviations: CASRN - Chemical Abstract Service Registry Number COPC - Contaminant of Potential Concern NA - No Criteria/Not Applicable ND - Not Detected Q - Data Qualifier RL - Reporting Limit WQC - Water Quality Criteria WQS - Water Quality Standards Belews Creek Steam Station Page 1 of 1 Table 12-4. Selection of Human Health COPCs - Sediment Total or Dissolved IT or D) Contaminant Group Contaminant CASRN Frequency of Detection (ado) Range of Detection Location of Maximum Detected Concentration Range of Detection Limits Maximum Reporting Limit Concentration Used for Screening (1) USEPA Resident Soils RSL (2) Sediment COPC? (Y/N ) Rationale for Selection or Deletion (3) Minimum Detected Concentration Q Maximum Detected Concentration Q T INORGANIC Aluminum 7429-90-5 100 3010 7560 - SD-DR-D 33.5 - 38.3 38.3 7560 7700 N 2 T INORGANIC Antimony 7440-36-0 0 ND ND - ND 6.7 - 7.7 7.7 7.7 3.1 Y 1 T INORGANIC Arsenic 7440-38-2 25 5.2 J- 5.2 J- SD-DR-D 6.7 - 7.7 7.7 5.2 0.67 Y 1 T INORGANIC Barium 7440-39-3 100 19.3 70.6 - SD-DR-D 3.4 - 3.8 3.8 70.6 1500 N 2 T INORGANIC Beryllium 7440-41-7 100 0.22 J 0.69 - SD-DR-D 0.34 - 0.38 0.38 0.69 16 N 2 T INORGANIC Boron 7440-42-8 25 13.5 J 13.5 J SD-DR-D 16.8 - 19.2 19.2 13.5 1600 N 2 T INORGANIC Cadmium 7440-43-9 0 ND ND ND 0.81 -0.92 0.92 0.92 7 N 2 T INORGANIC Chromium (Total) 7440-47-3 100 2.2 16.6 SD-DR-D 1.7 - 1.9 1.9 16.6 12000 N 2 T INORGANIC Cobalt 7440-48-4 25 9.3 J- 9.3 J- SD-DR-D 6.7 - 7.7 7.7 9.3 2.3 Y 1 T INORGANIC Copper 7440-50-8 100 3.4 9.1 - SD-DR-D 1.7 - 1.9 1.9 9.1 310 N 2 T INORGANIC Iron (Fe) 7439-89-6 100 4760 13800 - SD-DR-D 13.4 - 15.3 15.3 13800 5500 Y 1 T INORGANIC Lead 7439-92-1 50 4.1 J 6.6 J- SD-DR-D 6.7 - 7.7 7.7 6.6 400 N 2 T INORGANIC Manganese (Mn) 7439-96-5 100 62.2 217 - SD-DR-D 1.7 - 1.9 1.9 217 180 Y 1 T INORGANIC Mercury 7439-97-6 75 0.0075 J 0.011 J SD-DR-D 0.011 - 0.012 0.012 0.011 0.94 N 2 T INORGANIC Molybdenum 7439-98-7 0 ND ND - ND 3.4 - 3.8 3.8 3.8 39 N 2 T INORGANIC Nickel 7440-02-0 100 1.4 J 10 - SD-DR-D 1.7 - 1.9 1.9 10 150 N 2 T INORGANIC Selenium 7782-49-2 25 4.3 J- 4.3 J- SD-DR-D 6.7 - 7.7 7.7 4.3 39 N 2 T INORGANIC Sodium 7440-23-5 0 ND ND - ND 335 - 383 383 383 NA N 6 T INORGANIC Strontium 7440-24-6 100 2.2 J 6.6 - SD-DR-D 3.4 - 3.8 3.8 6.6 4700 N 2 T INORGANIC Thallium 7440-28-0 0 ND ND - ND 6.7 - 7.7 7.7 7.7 0.078 Y 3 T INORGANIC Vanadium 7440-62-2 100 11 28.5 J- SD-DR-D 6.7 - 7.7 7.7 28.5 39 N 2 T I INORGANIC lZinc 7440-66-6 1 100 1 8.1 40.1 SD-DR-D 6.7 - 7.7 7.7 40.1 2300 1 N 2 Notes: All units are in mg/kg The applicable criteria for chromium III was input as a surrogate for chromium total when none was available. The speciation data for chromium was not available. (1) Maximum concentration. If contaminant was not detected, reporting limit (RL) was entered. (2) USEPA Regional Screening Level Generic Tables, Resident Soil, June 2015. http://www.epa.gov/reg3hwmd/risk/human/rb-concentration_table/Generic_Tables/index.htm Target Risk = 1 E-06 and Target Hazard Quotient = 0.1 (3) Rationale for Selection/Deletion: 1 - Contaminant concentration exceeds screening value. 2 - Contaminant concentration and RL are less than screening value. 3 - Contaminant was not found in concentrations exceeding the screening value; however the RL exceeds the screening value. 4 - Contaminant was found in concentrations exceeding its RL; however, there is no current screening value for the contaminant. 5 - Contaminant was not found in concentrations exceeding its RL; however, there is no current screening value for the contaminant. 6 - Contaminant concentration was nondetect and set to equal the RL; there is no current screening value for the contaminant. Qualifiers: J - Estimated Concentration - No Qualifier Abbreviations: CASRN - Chemical Abstract Service Registry Number COPC - Contaminant of Potential Concern NA - No Criteria/Not Applicable ND - Not Detected Q - Data Qualifier RL - Reporting Limit RSL - Regional Screening Level USEPA - United States Environmental Protection Agency Belews Creek Steam Station Page 1 of 1 Table 12-5. Contaminants of Potential Human Health Concern Contaminant Group Contaminant CASRN Groundwater COPC Rationale for Selection or Deletion Soil COPC Rationale for Selection or Deletion Surface Water COPC Rationale for Selection or Deletion Sediment COPC Rationale for Selection or Deletion INORGANIC Aluminum 7429-90-5 Y 1 0.271818182 N -- N 2 INORGANIC Antimony 7440-36-0 Y 1 0.176595745 N 2 N Y 1 INORGANIC Arsenic 7440-38-2 Y 1 42.66666667 Y 2 N Y 1 INORGANIC Barium 7440-39-3 Y 1 0.028181818 N 2 N N 2 INORGANIC Beryllium 7440-41-7 Y 1 0.039565217 N 5 Y N 2 INORGANIC Boron 7440-42-8 Y 1 0.001326087 N 4 Y N 2 INORGANIC Cadmium 7440-43-9 Y 1 0.002244898 N 4 Y N 2 INORGANIC Chromium (Total) 7440-47-3 Y 1 0.000303333 N 4 Y N 2 INORGANIC Cobalt 7440-48-4 Y 1 4.6 Y 2 N Y 1 INORGANIC Copper 7440-50-8 N 2 0.010680851 N 4 Y N 2 INORGANIC Iron (Fe) 7439-89-6 Y 1 0.558536585 N -- Y 1 INORGANIC Lead 7439-92-1 N 2 0.05725 N 4 Y N 2 INORGANIC Manganese (Mn) 7439-96-5 Y 1 0.534615385 N 4 Y Y 1 INORGANIC Mercury 7439-97-6 Y 1 0.0155 N 4 Y N 2 INORGANIC Molybdenum 7439-98-7 Y 1 0.004655172 N 2 N N 2 INORGANIC Nickel 7440-02-0 Y 1 0.019590909 N 2 N N 2 INORGANIC Selenium 7782-49-2 Y 1 0.019482759 N 4 Y N 2 INORGANIC Sodium 7440-23-5 Y 4 Y 4 Y N 6 INORGANIC Strontium 7440-24-6 N 2 0.000421429 N 2 N N 2 INORGANIC Thallium 7440-28-0 Y 1 6.916666667 Y 1 Y Y 3 INORGANIC Titanium 7440-32-6 -- -- -- -- INORGANIC Vanadium 7440-62-2 Y 1 0.268965517 N 4 Y N 2 INORGANIC Zinc 7440-66-6 N 2 0.004657143 N 5 Y N 2 Notes: -- indicates analyte / dissolved analyte was not analyzed or provided by the laboratory. Rationale for Selection/Deletion: 1 - Contaminant concentration exceeds screening value. 2 - Contaminant concentration and RL are less than screening value. 3 - Contaminant was not found in concentrations exceeding the screening value; however the RL exceeds the screening value. 4 - Contaminant was found in concentrations exceeding its RL; however, there is no current screening value for the contaminant. 5 - Contaminant was not found in concentrations exceeding its RL; however, there is no current screening value for the contaminant. 6 - Contaminant concentration was nondetect and set to equal the RL; there is no current screening value for the contaminant. Abbreviations: CASRN - Chemical Abstract Service Registry Number COPC - Contaminant of Potential Concern Belews Creek Steam Station Page 1 of 1 Table 12-6. Selection of Ecological COPCs - Soil Total or Dissolved (Tor D) Contaminant Group Contaminant CASRN Frequency of Detection Range of Detection Range of Detection Limits Maximum Reporting Limit Concentration Used for Screening (1) EPA Region IV Soil ESV (2) Screening Hazard Quotient (3) Soil COPC? (Y/N) Contaminant Category (4) Minimum Detected Concentration Q Maximum Detected Concentration Q Location of Maximum Detected Concentration T INORGANIC Aluminum 7429-90-5 100 2050 29900 - GWA-11D 5.7 - 41.6 41.6 29900 50 5.98E+02 Y 1 T INORGANIC Antimony 7440-36-0 0 ND ND - ND 2.8 - 8.3 8.3 8.3 3.5 2.37E+00 Y 2 T INORGANIC Arsenic 7440-38-2 61 1.6 J 128 - AB-1S 2.8 - 8.3 8.3 128 10 1.28E+01 Y 1 T INORGANIC Barium 7440-39-3 100 18.6 - 620 J- GWA-9GTB 0.57 - 4.2 4.2 620 165 3.76E+00 Y 1 T INORGANIC Beryllium 7440-41-7 97 0.22 J 9.1 - GWA-11 D 0.06 - 0.42 0.42 9.1 1.1 8.27E+00 Y 1 T INORGANIC Boron 7440-42-8 43 4 - 30.5 J- GWA-9GTB 2.8 - 72.1 72.1 30.5 0.5 6.10E+01 Y 1 T INORGANIC Cadmium 7440-43-9 2 0.22 J 0.22 J GWA-6S 0.33 - 1 1 0.22 1.6 1.38E-01 N NC T INORGANIC Chromium (Total) 7440-47-3 93 0.63 J+ 54.6 J- GWA-9GTB 0.28 - 2.1 2.1 54.6 0.4 1.37E+02 Y 1 T INORGANIC Cobalt 7440-48-4 84 2.2 J 161 - SB-3 2.8 - 8.3 8.3 161 20 8.05E+00 Y 1 T INORGANIC Copper 7440-50-8 98 0.86 J+ 50.2 - AB-2D 0.28 - 2.1 2.1 50.2 40 1.26E+00 Y 1 T INORGANIC Iron (Fe) 7439-89-6 100 912 - 45800 - GWA-11D 2.3 - 25.8 25.8 45800 200 2.29E+02 Y 1 T INORGANIC Lead 7439-92-1 98 3.7 J 45.8 - GWA-2D 2.8 - 8.3 8.3 45.8 50 9.16E-01 N NC T INORGANIC Manganese (Mn) 7439-96-5 100 18.5 - 1390 - AB-9S 0.28 - 2.1 2.1 1390 100 1.39E+01 Y 1 T INORGANIC Mercury 7439-97-6 23 0.0047 J 0.062 - AB-6D 0.0085 - 0.013 0.013 0.062 0.1 6.20E-01 N NC T INORGANIC Molybdenum 7439-98-7 10 1.3 - 2.7 J GWA-2D 0.56 - 4.2 4.2 2.7 2 1.35E+00 Y 1 T INORGANIC Nickel 7440-02-0 87 0.27 J 43.1 - GWA-1S 0.28 - 2.1 2.1 43.1 30 1.44E+00 Y 1 T INORGANIC Selenium 7782-49-2 13 2.3 J 11.3 - AB-8D 2.8 - 8.3 8.3 11.3 0.81 1.40E+01 Y 1 T INORGANIC Sodium 7440-23-5 13 37.8 J 228 J GWA-8D 55.5 - 416 416 228 NA NA Y 4 T INORGANIC Strontium 7440-24-6 67 0.86 - 29.5 AB-8D 0.56 - 6.4 6.4 29.5 NA NA Y 3 T INORGANIC Thallium 7440-28-0 0 ND - ND ND 2.8 - 8.3 8.3 8.3 1 8.30E+00 Y 2 T INORGANIC Vanadium 7440-62-2 95 5.1 J 117 J AB-9S 2.8 - 8.3 8.3 117 2 5.85E+01 Y 1 T INORGANIC Zinc 7440-66-6 100 3.8 J 163 - AB-7D 1.1 -8.3 8.3 163 50 3.26E+00 Y 1 Notes: All units are in mg/kg. (1) Maximum concentration. If contaminant was not detected, maximum reporting limit (RL) was input per NC SLERA Guidance. (2) Based on US EPA's Region 4 Water Quality Management Division, Water Quality Standards Unit's Screening List (http://www.epa.gov/region4/superfund/images/allprogrammedia/pdfs/tsstablesoilvalues.pdf). (3) Screening Hazard Quotient (HQ) = Concentration Used for Screening / EPA Region IV ESV. (4) Contaminant Categories: 1 - Contaminant is found in concentrations exceeding its screening value. 2 - Contaminant was not found in concentrations exceeding the RL; however, the RL exceed its screening value. 3 - Contaminant was found in concentrations exceeding its RL; however, there is no current screening value for the contaminant. 4 - Contaminant was not found in concentrations exceeding the RL and there is no current screening value for the contaminant. Qualifiers: J - Estimated Concentration J+ - Concentration Biased High J- - Concentration Biased Low - No Qualifier Abbreviations: CASRN - Chemical Abstract Service Registry Number COPC - Contaminant of Potential Concern ESV - Ecological Screening Value NA - No Criteria/Not Applicable NC - No Contaminant Category ND - Not Detected Q - Data Qualifier RL - Reporting Limit SLERA - Screening Level Ecological Risk Assessment Belews Creek Steam Station Page 1 of 1 Table 12-7. Selection of Ecological COPCs - Freshwater Total or Dissolved (T or D) Contaminant Group Contaminant CASRN Frequency of Detection Range of Detection Location of Maximum Detected Concentration Range of Detection Limits Maximum Reporting Limit Concentration Used for Screening (1) EPA Region IV SW CSV (2) Screening Hazard Quotient (3) NC Freshwater Aquatic Life WQS & EPA National WQC (4) Exceed NCWQS? (Y/N) Freshwater COPC? (Y/N) Contaminant Category (5) Minimum Detected Concentration Q Maximum Detected Concentration Q D INORGANIC Antimony 7440-36-0 25 0.51 0.51 SW-DR-D 0.5-0.5 0.5 0.51 160 3.19E-03 NA NA N NC D INORGANIC Arsenic 7440-38-2 100 0.21 J 2.8 SW-DR-D 0.5-0.5 0.5 2.8 190 1.47E-02 150 N N NC D INORGANIC Barium 7440-39-3 100 16 49 SW-DR-D 5-5 5 49 NA NA NA NA Y 3 D INORGANIC Beryllium 7440-41-7 0 ND ND ND 0.2-0.2 0.2 0.2 0.53 3.77E-01 6.5 N N NC D INORGANIC Boron 7440-42-8 75 73 8100 SW-DR-D 50 - 50 50 8100 750 1.08E+01 NA NA Y 1 D INORGANIC Cadmium 7440-43-9 0 ND ND ND 0.08-0.08 0.08 0.08 0.66 1.21E-01 0.15 N N NC D INORGANIC Chromium (Total) 7440-47-3 100 0.18 J 0.62 SW-DR-U 0.5-0.5 0.5 0.62 117.32 5.28E-03 24 N N NC D INORGANIC Cobalt 7440-48-4 25 0.98 0.98 SW-DR-D 0.5-0.5 0.5 0.98 NA NA NA NA Y 3 D INORGANIC Copper 7440-50-8 100 0.69 J 8.7 SW-BL-D 1 - 1 1 8.7 6.54 1.33E+00 2.7 Y Y 1,5 D INORGANIC Lead 7439-92-1 75 0.14 0.83 SW-BL-D 0.1 -0.1 0.1 0.83 1.32 6.29E-01 0.54 Y Y 5 D INORGANIC Manganese (Mn) 7439-96-5 75 2.7 J 220 SW-DR-D 5-5 5 220 NA NA NA NA Y 3 D INORGANIC Molybdenum 7439-98-7 100 0.16 J 10.2 SW-DR-D 0.5-0.5 0.5 10.2 NA NA NA NA Y 3 D INORGANIC Nickel 7440-02-0 100 0.17 J+ 0.99 SW-DR-D 0.5-0.5 0.5 0.99 87.71 1.13E-02 16 N N NC D INORGANIC Selenium 7782-49-2 75 0.3 J 2.4 SW-DR-D 0.5-0.5 0.5 2.4 5 4.80E-01 5 N N NC D INORGANIC Strontium 7440-24-6 1 100 39 460 SW-DR-D 5-5 1 5 1 460 NA NA NA NA Y 3 D INORGANIC Thallium 7440-28-0 75 0.017 J 0.53 SW-DR-D 0.1 - 0.1 0.1 0.53 4 1.33E-01 NA NA N NC D INORGANIC Vanadium 7440-62-2 75 0.73 J 2.7 SW-DR-D 1 - 1 1 2.7 NA NA NA NA Y 3 D INORGANIC Zinc 7440-66-6 75 2.6 J 15 SW-DR-D 10 - 10 10 15 58.91 2.55E-01 36 N N NC Notes: All units are in ug/L. Dissolved concentrations are compared to applicable criteria. The applicable criteria for chromium III was input as a surrogate for chromium total when none was available. The EPA Region IV CSV for arsenic III was input as a surrogate for arsenic total since none was available. (1) Maximum concentration. If contaminant was not detected, maximum reporting limit (RL) was input per NC SLERA Guidance. (2) Based on US EPA's Region 4 Water Quality Management Division, Water Quality Standards Unit's Screening List - Chronic Screening Values (http://www.epa.gov/region4/superfund/programs/riskassess/ecolbul.html#tbll ). (3) Screening Hazard Quotient = Concentration Used for Screening / EPA Region IV CSV. (4) 15A NCAC 2B or EPA National Criteria (http://portal.ncdenr.org/c/document_library/get_file?uuid=dfc89f23-a372-4782-b3b0-60e6884b1696&groupld=38364) The minimum of the 15A NCAC 2B Freshwater Aquatic Life was input. Based on surface water classification (WS-IV, B and C) and other factors, Saltwater Aquatic Life, Water Supply, Human Health, Trout Waters, High Quality Waters and Swamp Waters are not applicable. (5) Contaminant Categories: 1 - Contaminant is found in concentrations exceeding its screening value. 2 - Contaminant was not found in concentrations exceeding the RL; however, the RL exceed its screening value. 3 - Contaminant was found in concentrations exceeding its RL; however, there is no current screening value for the contaminant. 4 - Contaminant was not found in concentrations exceeding the RL and there is no current screening value for the contaminant. 5 - Contaminant's RL or maximum concentration exceeds the NC Water Quality Criteria. Qualifiers: J - Estimated Concentration J+- Concentration Biased High - No Qualifier Abbreviations: CASRN - Chemical Abstract Service Registry Number COPC - Contaminant of Potential Concern CSV - Chronic Screening Value NA - No Criteria/Not Applicable NC - No Contaminant Category ND - Not Detected NCWQS - North Carolina Water Quality Standard Q - Data Qualifier RL - Reporting Limit SLERA - Screening Level Ecological Risk Assessment WQC - Water Quality Criteria WQS - Water Quality Standards Belews Creek Steam Station Page 1 of 1 Table 12-8. Selection of Ecological COPCs - Sediment Total or Dissolved (T or D) Contaminant Group Contaminant CASRN Frequency of Detection Range of Detection Location of Maximum Detected Concentration Range of Detection Limits Maximum Reporting Limit Concentration Used for Screening (1) EPA Region IV Sediment Effects Value (2) Screening Hazard Quotient (3) Sediment COPC? (Y/N) Contaminant Category (5) Minimum Detected Concentration Q Maximum Detected Concentration Q T INORGANIC Aluminum 7429-90-5 100 3010 7560 SD-DR-D 33.5 - 38.3 38.3 7560 NA NA Y 3 T INORGANIC Antimony 7440-36-0 0 ND ND ND 6.7 - 7.7 7.7 7.7 12 6.42E-01 N NC T INORGANIC Arsenic 7440-38-2 25 5.2 J- 5.2 J- SD-DR-D 6.7 - 7.7 7.7 5.2 7.24 7.18E-01 Y 2 T INORGANIC Barium 7440-39-3 100 19.3 70.6 SD-DR-D 3.4 - 3.8 3.8 70.6 NA NA Y 3 T INORGANIC Beryllium 7440-41-7 100 0.22 J 0.69 SD-DR-D 0.34 - 0.38 0.38 0.69 NA NA Y 3 T INORGANIC Boron 7440-42-8 25 13.5 J 13.5 J SD-DR-D 16.8 - 19.2 19.2 13.5 NA NA Y 4 T INORGANIC Cadmium 7440-43-9 0 ND ND ND 0.81 -0.92 0.92 0.92 1 9.20E-01 N NC T INORGANIC Chromium (Total) 7440-47-3 100 2.2 16.6 SD-DR-D 1.7 - 1.9 1.9 16.6 52.3 3.17E-01 N NC T INORGANIC Cobalt 7440-48-4 25 9.3 J- 9.3 J- SD-DR-D 6.7 - 7.7 7.7 9.3 NA NA Y 3 T INORGANIC Copper 7440-50-8 100 3.4 9.1 SD-DR-D 1.7 - 1.9 1.9 9.1 18.7 4.87E-01 N NC T INORGANIC Iron (Fe) 7439-89-6 100 4760 13800 SD-DR-D 13.4 - 15.3 15.3 13800 NA NA Y 3 T INORGANIC Lead 7439-92-1 50 4.1 J 6.6 J- SD-DR-D 6.7 - 7.7 7.7 6.6 30.2 2.19E-01 N NC T INORGANIC Manganese (Mn) 7439-96-5 100 62.2 217 SD-DR-D 1.7 - 1.9 1.9 217 NA NA Y 3 T INORGANIC Mercury 7439-97-6 75 0.0075 J 0.011 J SD-DR-D 0.011 - 0.012 0.012 0.011 0.13 8.46E-02 N NC T INORGANIC Molybdenum 7439-98-7 0 ND ND ND 3.4 - 3.8 3.8 3.8 NA NA Y 4 T INORGANIC Nickel 7440-02-0 100 1.4 J 10 SD-DR-D 1.7 - 1.9 1.9 10 15.9 6.29E-01 N NC T INORGANIC Selenium 7782-49-2 25 4.3 J- 4.3 J- SD-DR-D 6.7 - 7.7 7.7 4.3 NA NA Y 4 T INORGANIC Sodium 7440-23-5 0 ND ND ND 335 - 383 383 383 NA NA Y 4 T INORGANIC Strontium 7440-24-6 100 2.2 J 6.6 SD-DR-D 3.4 - 3.8 3.8 6.6 NA NA Y 3 T INORGANIC Thallium 7440-28-0 0 ND ND ND 6.7 - 7.7 7.7 7.7 NA NA Y 4 T INORGANIC Vanadium 7440-62-2 100 11 28.5 J- SD-DR-D 6.7 - 7.7 7.7 28.5 1 NA NA Y 3 T INORGANIC jZinc 7440-66-6 100 1 8.1 40.1 SD-DR-D 6.7 - 7.7 1 7.7 40.1 1 124 3.23E-01 N NC Notes: All units are in mg/kg. (1) Maximum concentration. If contaminant was not detected, maximum reporting limit (RL) was input per NC SLERA Guidance. (2) Ecological Risk Assessment Bulletins --Supplement to RAGS, Table 3 Sediment Screening Values (http://www.epa.gov/region4/superfund/programs/riskassess/ecolbul.html#tbl3) The sediment ecological screening value is determined using the maximum of the practical quantitation limit (PQL) and the Effects Value; since no laboratory -specific PQLs are provided, the Effects Value was applied as the criterion. (3) Screening Hazard Quotient (HQ) = Concentration Used for Screening / EPA Region IV Sediment Effects Value. (4) Contaminant Categories: 1 - Contaminant is found in concentrations exceeding its screening value. 2 - Contaminant was not found in concentrations exceeding the RL; however, the RL exceed its screening value. 3 - Contaminant was found in concentrations exceeding its RL; however, there is no current screening value for the contaminant. 4 - Contaminant was not found in concentrations exceeding the RL and there is no current screening value for the contaminant. Qualifier: J - Estimated Concentration J+ - Concentration Biased High J- - Concentration Biased Low - No Qualifier Abbreviations: CASRN - Chemical Abstract Service Registry Number COPC - Contaminant of Potential Concern NA - No Criteria/Not Applicable NC - No Contaminant Category ND - Not Detected PQL - Practical Quantitation Limit Q - Data Qualifier RL - Reporting Limit SLERA - Screening Level Ecological Risk Assessment SQL - Sample Quantitation Limit Belews Creek Steam Station Page 1 of 1 Table 12-9. Contaminants of Potential Ecological Concern Contaminant Group Contaminant CASRN Soil COPC Soil Contaminant Category Freshwater COPC Freshwater Contaminant Category Sediment COPC Sediment Contaminant Category INORGANIC Aluminum 7429-90-5 598 Y -- -- Y 3 INORGANIC Antimony 7440-36-0 2.371428571 Y N NC N NC INORGANIC Arsenic 7440-38-2 12.8 Y N NC Y 2 INORGANIC Barium 7440-39-3 3.757575758 Y Y 3 Y 3 INORGANIC Beryllium 7440-41-7 8.272727273 Y N NC Y 3 INORGANIC Boron 7440-42-8 61 Y Y 1 Y 4 INORGANIC Cadmium 7440-43-9 0.1375 N N NC N NC INORGANIC Chromium (Total) 7440-47-3 136.5 Y N NC N NC INORGANIC Cobalt 7440-48-4 8.05 Y Y 3 Y 3 INORGANIC Copper 7440-50-8 1.255 Y Y 1,5 N NC INORGANIC Iron (Fe) 7439-89-6 229 Y -- -- Y 3 INORGANIC Lead 7439-92-1 0.916 N Y 5 N NC INORGANIC Manganese (Mn) 7439-96-5 13.9 Y Y 3 Y 3 INORGANIC Mercury 7439-97-6 0.62 N -- -- N NC INORGANIC Molybdenum 7439-98-7 1.35 Y Y 3 Y 4 INORGANIC Nickel 7440-02-0 1.436666667 Y N NC N NC INORGANIC Selenium 7782-49-2 13.95061728 Y N NC Y 4 INORGANIC Sodium 7440-23-5 NA Y -- -- Y 4 INORGANIC Strontium 7440-24-6 NA Y Y 3 Y 3 INORGANIC Thallium 7440-28-0 8.3 Y N NC Y 4 INORGANIC Vanadium 7440-62-2 58.5 1 Y I Y 1 3 1 Y 1 3 INORGANIC jZinc 7440-66-6 3.26 1 Y I N I NC I N I NC Notes: -- indicates dissolved analyte was not analyzed or provided by the laboratory. Contaminant Categories: 1 - Contaminant is found in concentrations exceeding its screening value. 2 - Contaminant was not found in concentrations exceeding the RL, however, the RL exceed its screening value. 3 - Contaminant was found in concentrations exceeding its RL, however, there is no current screening value for the contaminant. 4 - Contaminant was not found in concentrations exceeding the RL and there is no current screening value for the contaminant. 5 - Contaminant's RL or maximum concentration exceeds the NC Water Quality Standards. Abbreviations: CASRN - Chemical Abstract Service Registry Number COPC - Contaminant of Potential Concern NC - Category not applicable because contaminant was not determined to be a COPC. Belews Creek Steam Station Page 1 of 1 Table 12-10. Threatened and Endangered Species in Stokes County Species Protection Status Federal County StatusFederal � Common Name Scientific Name State Federal Record (USFWS Record Habitat Requirements � Status � Status h Raleigh g 2 Status Field Status Office) 2 Vertebrate American Falco peregrinus Peregrine Falcon anatum (syn. Falco E -- Historical -- peregrinus) Jumprock o ma MoxoBigeye T -- Current -- Dan drainage m riommu anom Dan drainage Blue Ridge Sculpin Cottus Sc -- Current -- -- caeruleomentum Exoglossum -- -- -- Cutlip Minnow Sc Current streams of Dan River system maxillingua Current pools, bogs, and other wetlands in hardwood Four -toed Hemidactylium Sc -- __ Salamander scutatum Orconectes -- Current -- forests North Carolina Sc -- rivers and streams in the Chowan, Roanoke, Spiny Crayfish carolinensis Probable/ Neuse, and Tar drainages Northern long- Myotis T _ eared bat septentrionalis Potential -- -- -- Dan drainage Orangefin madtom Noturus gilberti -- Current FSC Current Orangefin Madtom Noturus gilberti E FSC -- Riverweed Darter Etheostoma -- Current -- large streams in Dan River system Sc -- podostemone Thoburnia hamiltoni FSC Current Rustyside Sucker E FSC Current Dan drainage wetland forests in the Coastal Plain; rocky, Timber Rattlesnake Crotalus horridus Sc -- Current __ upland forests elsewhere [NHP tracking only den/hibernacula sites and selected isolated populations] Wehrle's Plethodon wehrlei T -- Current upland forests (low mountains near Virginia Salamander border) Invertebrate Diana fritillary Speyeria diana -- -- FSC Current -- (butterfly) Lasmigona subviridis E FSC Current Roanoke, Tar, Neuse and Yadkin --Pee Dee Green floater FSC Current drainages; New and Watauga drainages James Spinymussel Pleurobema collina E E -- Current E Current Dan and Mayo rivers -- Margarita River Macromia margarita -- FSC Current skimmer Sc __ __ Notched Rainbow Villosa constricta -- Current Roanoke, Tar, Neuse, Yadkin --Pee Dee, and Catawba drainages Vascular Plant Alabama Grape- Sceptridium jenmanii SC-V -- Historical -- moist woods fern Thermopsis mollis SC-V Current dry ridges and open woodlands Appalachian Golden -banner -- -- -- Ash -leaved Golden- Thermopsis SC-V -- Current -- dry ridges banner fraxinifolia Quercus ilicifolia E Bear Oak -- Current __ __ dry summits and rocky woods on Piedmont Juglans cinerea -- -- -- FSC Historic monadnocks -- _ Butternut Crocanthemum T -- Current -- -- Creeping Sunrose rock outcrops, glades propinquum Chelone cuthbertii SC-V FSC Current FSC Current bogs Cuthbert's Turtlehead Greenland Mononeuria Sandwort groenlandica (syn. T -- Current -- -- high elevation and low elevation rocky summits Minuartia Indian Physic Gillenia stipulata T -- Current forests and open woods, mainly over mafic rocks Jacob's Ladder Polemonium reptans T -- Historical moist, nutrient -rich forests such as bottomlands var. reptans and rich slopes Mountain Cardamine T -- Current -- -- seeps, banks of mountain brooks Watercress rotundifolia floodplains Northern Cup -plant Silphium perfoliatum Liatris aspera Helianthus T -- Current Rough Blazing -star T -- Current -- E -- glades, open woods, fens Schweinitz's E E Current Current open woods, roadsides, and other rights -of -way Sunflower schweinitzii Spiraea corymbosa -- Current Shinyleaf E -- open woods, thin soil over rock Meadowsweet Cardamine E E Current E Current Small-anthered seeps, streamside sandbars, and floodplain Bittercress micranthera Monotropsis odorata depressions Sweet Pinesap SC-V FSC Current FSC Current dry forests and bluffs SC-V -- Virginia Cup -plant Silphium connatum Current floodplains, rich alluvial woods Notes: 1 State Status, Federal Status, County Record Status and Habitat Requirements obtained from North Carolina Department of Environment and Natural Resources, Natural Heritage Program website, http://portal.ncdenr.org/web/nhp/database-search 2 Federal (USFWS Raleigh Field Office) Status and Federal Record Status obtained from U.S. Fish & Wildlife Service, Endangered Species, Threatened Species, Federal Species of Concern and Candidate Species website, http://www.fws.gov/raleigh/species/cntylist/nc_counties.html Belews Creek Steam Station Page 1 of 3 Table 12-10. Threatened and Endangered Species in Stokes County Definitions of Federal Status Codes: E = Endangered A taxon "in danger of extinction throughout all or a significant portion of its range." T = Threatened A taxon "likely to become endangered within the foreseeable future throughout all or a significant portion of its range." C = Candidate A taxon under consideration for official listing for which there is sufficient information to support listing. (Formerly "C1" candidate species.) BGPA = Bald and Golden See below. Eagle Protection Act. FSC = Federal Species of FSC is an informal term. It is not defined in the federal Endangered Species Act. In Concern North Carolina, the Asheville and Raleigh Field Offices of the US Fish and Wildlife Service (Service) define Federal Species of Concern as those species that appear to be in decline or otherwise in need of conservation and are under consideration for listing or for which there is insufficient information to support listing at this time. Subsumed under the term "FSC' are all species petitioned by outside parties and other selected focal species identified in Service strategic plans. State Wildlife Action Plans or Natural Heritage Program Lists. T(S/A) = Threatened due A taxon that is threatened due to similarity of appearance with another listed species to Similarity of Appearance and is listed for its protection. Taxa listed as T(S/A) are not biologically endangered or threatened and are not subject to Section 7 consultation. See below. EXP = Experimental A taxon listed as experimental (either essential or nonessential). Experimental, Population nonessential populations of endangered species (e.g., red wolf) are treated as threatened species on public land, for consultation purposes, and as species proposed for listing on private land. P = Proposed Taxa proposed for official listing as endangered or threatened will be noted as "PE" or "PT", respectively. Definitions of Federal Status Codes cont.: In the July 9, 2007 Federal Register( 72:37346-37372), the bald eagle was declared recovered, and removed (de- listed) from the Federal List of Threatened and Endangered wildlife. This delisting took effect August 8, 2007. After delisting, the Bald and Golden Eagle Protection Act (Eagle Act) (16 U.S.C. 668-668d) becomes the primary law protecting bald eagles. The Eagle Act prohibits take of bald and golden eagles and provides a statutory definition of "take" that includes "disturb". The USFWS has developed National Bald Eagle Management Guidelines to provide guidance to land managers, landowners, and others as to how to avoid disturbing bald eagles. For more information, visit http://www.fws.gov/migratorybirds/baldeagle.htm In the November 4, 1997 Federal Register (55822-55825), the northern population of the bog turtle (from New York south to Maryland) was listed as T (threatened), and the southern population (from Virginia south to Georgia) was listed as T(S/A) (threatened due to similarity of appearance). The T(S/A) designation bans the collection and interstate and international commercial trade of bog turtles from the southern population. The T(S/A) designation has no effect on land management activities by private landowners in North Carolina, part of the southern population of the species. In addition to its official status as T(S/A), the U.S. Fish and Wildlife Service considers the southern population of the bog turtle as a Federal species of concern due to habitat loss. Definitions of Federal Record Status: Current The species has been observed in the county within the last 50 years. Historic The species was last observed in the county more than 50 years ago. Obscure The date and/or location of observation is uncertain. Incidental/migrant The species was observed outside of its normal range or habitat. Probable/potential The species is considered likely to occur in this county based on the proximity of known records (in adjacent counties), the presence of potentially suitable habitat, or both. Belews Creek Steam Station Page 2 of 3 Table 12-10. Threatened and Endangered Species in Stokes County Definition of State Codes: Code/Status Definition E = Endangered Any native or once -native species of wild -animal whose continued existence as a viable component of the State's fauna is determined by the Wildlife Resources Commission to be in jeopardy or any species of wild animal determined to bean 'endangered species' pursuant to the Endangered Species Act. (Article 25 of Chapter 113 of the General Statutes; 1987). T = Threatened Any native or once -native species of wild animal which is likely to become an endangered species within the foreseeable future throughout all or a significant portion of its range, or one that is designated as a threatened species pursuant to the Endangered Species Act. (Article 25 of Chapter 113 of the General Statutes; 1987). SC = Special Concern Any species of wild animal native or once -native to North Carolina which is determined by the Wildlife Resources Commission to require monitoring but which may be taken under regulations adopted under the provisions of this Article. (Article 25 of Chapter 113 of the General Statutes; 1987). SR = Significantly Rare Any species which has not been listed by the N.C. Wildlife Resources Commission as an Endangered, Threatened, or Special Concern species, but which exists in the state (or recently occurred in the state) in small numbers and has been determined by the N.C. Natural Heritage Program to need monitoring. SR-G = Game Animal Species is a game animal or a furbearer, and therefore (by law) cannot be listed for State protection as E, T, or SC. SC-V = Special Concern -Vulnerable "Any species or higher taxon of plant which is likely to become a threatened species within the foreseeable future" (NCAC 02 NCAC 48F .0401). SC-H = Special Concern -Historical "Any species or higher taxon of plant that occurred in North Carolina at one time, but for which all known populations are currently considered to be either historical or extirpated." (NCAC 02 NCAC48F .0401). SR-L = Significantly Rare Limited Any species not listed by the N.C. Plant Conservation Program as Endangered, Threatened, or Candidate, which is rare in North Carolina, generally with 1-100 populations in the state, frequently substantially reduced in numbers by habitat destruction (and sometimes also by direct exploitation or disease). Definition of State Codes cont.: SR-D = Significantly Rare Disjunct The species is disjunct to North Carolina from a main range in a different part of the country or world. SR-P = Peripheral The species is at the periphery of its range in North Carolina. These species are generally more common somewhere else in their ranges, occurring in North Carolina peripherally to their main ranges, mostly in habitats which are unusual in North Carolina. SR-O = Significantly Rare Other The range of the species is sporadic or cannot be described by the other Significantly Rare categories W = Watch List Any other species believed to be rare and of conservation concern in the state but not warranting active monitoring at this time. Definitions of County Record Status: Current Current - the species has been observed in the county within the last 50 years. Historic Historic - the species was last observed in the county more than 50 years ago. Probable/potential Probable/potential - the species is considered likely to occur in this county based on the proximity of known records (in adjacent counties), the presence of potentially suitable habitat, or both. SR-T = Significantly Rare Throughout The species is rare throughout its range (fewer than 100 populations total). Belews Creek Steam Station Page: 3 of 3 Table 15-1. CSA Supplemental Sampling Plan Well ID Approximate Well Total Depth ft. b s Well Screen Length (ft.) Approximate Well Screen Interval ft. b s Analysis Parameters* AB-113 86 5 73-78 Table 7-3 AB-1S 52 15 35-50 Table 7-3 AB-213 139 5 132-137 Table 7-3 AB-2S 50 15 31-46 Table 7-3 AB-3S 55 15 36-51 Table 7-3 AB-5D 104.4 5 97-102 Table 7-3 AB-613 94.6 5 85-90 Table 7-3 AB-81) 84.7 5 72-77 Table 7-3 AB-91312 137.3 5 130-135 Table 7-3 AB-9D 98 5 90-95 Table 7-3 AB-9S 31 15 13-28 Table 7-3 BG-11) 57 5 47-52 Table 7-3 BG-2S 60 15 40-55 Table 7-3 BG-31) 71 5 62-67 Table 7-3 GWA-11) 71.5 5 58-63 Table 7-3 GWA-IS 36 15 19-34 Table 7-3 GWA-21) 70 5 58-63 Table 7-3 GWA-2S 51 15 34-49 Table 7-3 GWA-51) 60.5 5 51.8-56.8 Table 7-3 GWA-5S 40 15 23-38 Table 7-3 GWA-61) 109 5 101-106 Table 7-3 GWA-6S 70 15 28-43 Table 7-3 GWA-7S 43.5 15 27.5-42.5 Table 7-3 GWA-813 97 5 89-94 Table 7-3 GWA-8S 39 15 20-35 Table 7-3 GWA-9S 53 15 36-51 Table 7-3 GWA-10S 26 15 4-19 Table 7-3 GWA-11D 72 5 63-68 Table 7-3 GWA-11S 58 15 23-38 Table 7-3 GWA-12D 74 5 63-68 Table 7-3 GWA-12S 59 15 40-55 Table 7-3 GWA-16S 47 15 29-44 Table 7-3 GWA-17S 41.5 15 25-40 Table 7-3 MW-102D 26.61 5 21.61-26.61 Table 7-3 Belews Creek Steam Station Page 1 of 2 Table 15-1. CSA Supplemental Sampling Plan Well ID Approximate Well Total Depth ft. b s Well Screen Length (ft.) Approximate Well Screen Interval ft. b s Analysis Parameters* MW-102S 14.93 8 6.93-14.93 Table 7-3 MW-103D 29.5 7 22.5-29.5 Table 7-3 MW-103S 13.43 5 8.43-13.43 Table 7-3 MW-200BR 50.5 5 45-50 Table 7-3 MW-200S 12.76 7.6 5.16-12.76 Table 7-3 MW-201D 44.14 10 34.14-44.14 Table 7-3 MW-203D 91.86 5 86.86-91.86 Table 7-3 MW-204D 41.07 5 36.07-41.07 Table 7-3 MW-204S 33.94 15 18.94-33.94 Table 7-3 Note: The specifics for sampling of chemical speciation of arsenic, chromium, iron, manganese, and selenium are currently under discussion between NCDENR and Duke Energy. It is undetermined at this time if chemical speciation sampling will occur during the CSA supplemental sampling event. Belews Creek Steam Station Page 2 of 2