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Home My WebLink AboutNC0024406_CSA Update 2017 Tables_20171031TABLE 2-1 WELL CONSTRUCTION DATA BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 2-1 Well Construction DataTable 2-1 Well Construction Data Page 1 of 4 Identification Program Date Installed Date Abandoned Monitoring Zone Material Diameter (inches)Northing (feet)Easting (feet) Measuring Point TOC Elevation (Feet - MSL) Ground Surface Elevation (Feet - MSL) Boring Depth (Feet BGS) Surface Casing Depth Total Well Depth (Feet TOC) Top of Screen Elevation (Feet - MSL) Bottom of Screen Elevation (Feet - MSL) BG-1D CAMA 4/3/2015 NA Deep PVC 2.00 929473.28 1686139.35 808.48 805.63 57.00 41.00 59.85 47.00 52.00 758.63 753.63 BG-1S CAMA 4/3/2015 NA Shallow PVC 2.00 929469.73 1686141.78 808.75 805.18 43.00 NA 46.57 26.10 41.30 779.08 763.88 BG-2BR CAMA 4/10/2015 NA Bedrock PVC 2.00 929471.79 1687480.08 812.59 810.05 129.50 80.00 132.04 80.50 85.50 729.55 724.55 BG-2BRA CAMA 3/28/2017 NA Bedrock PVC 2.00 929488.09 1687464.38 813.59 811.17 104.00 70.00 103.00 98.00 103.00 713.17 708.17 BG-2D CAMA 3/30/2015 NA Deep PVC 2.00 929467.23 1687483.75 812.13 809.95 80.00 65.00 82.18 70.00 75.00 739.95 734.95 BG-2S CAMA 3/27/2015 NA Shallow PVC 2.00 929463.08 1687486.74 811.80 809.72 60.00 NA 62.08 40.00 55.00 769.72 754.72 BG-3D CAMA 5/15/2015 NA Deep PVC 2.00 922175.91 1680643.03 844.61 841.72 71.00 56.00 73.89 62.00 67.00 779.72 774.72 BG-3S CAMA 5/13/2015 NA Shallow PVC 2.00 922181.41 1680644.11 845.64 842.46 44.00 NA 47.18 25.00 40.00 817.46 802.46 AB-1BR CAMA 5/3/2016 NA Bedrock PVC 2.00 928655.43 1682496.12 772.83 769.42 131.00 80.10 106.91 93.90 98.90 675.52 670.52 AB-1D CAMA 5/10/2015 NA Deep PVC 2.00 928651.31 1682506.67 772.47 769.47 86.00 71.00 89.00 73.00 78.00 696.47 691.47 AB-1S CAMA 5/14/2015 NA Shallow PVC 2.00 928652.75 1682501.26 772.42 769.49 52.00 NA 54.93 35.00 50.00 734.49 719.49 AB-2D CAMA 5/13/2015 NA Deep PVC 2.00 928574.52 1683157.33 773.84 770.71 139.00 124.00 142.13 132.00 137.00 638.71 633.71 AB-2S CAMA 4/14/2015 NA Shallow PVC 2.00 928574.12 1683164.79 773.94 770.69 50.00 NA 53.25 31.00 46.00 739.69 724.69 AB-3D CAMA 5/30/2015 NA Deep PVC 2.00 928697.23 1683745.40 772.51 769.80 118.00 103.00 120.71 111.00 116.00 658.80 653.80 AB-3S CAMA 4/17/2015 NA Shallow PVC 2.00 928699.41 1683750.83 772.62 769.92 55.00 NA 57.70 36.00 51.00 733.92 718.92 AB-4BR CAMA 6/8/2015 NA Bedrock PVC 2.00 925622.16 1683236.93 761.99 759.24 144.50 88.00 147.25 137.50 142.50 621.74 616.74 AB-4BRD CAMA 4/22/2016 NA Bedrock PVC 2.00 925617.90 1683261.95 762.50 758.83 NM 125.00 174.57 157.30 162.30 601.53 596.53 AB-4D CAMA 6/5/2015 NA Deep PVC 2.00 925617.71 1683239.22 762.21 759.25 94.50 88.00 97.46 89.50 94.50 669.75 664.75 AB-4S CAMA 6/4/2015 NA Ash Pore Water PVC 2.00 925609.10 1683245.84 762.18 759.36 18.00 NA 20.82 3.00 18.00 756.36 741.36 AB-4SL CAMA 6/4/2015 NA Ash Pore Water PVC 2.00 925613.98 1683243.16 762.25 759.15 61.30 NA 64.40 51.30 61.30 707.85 697.85 AB-5D CAMA 6/12/2015 NA Deep PVC 2.00 925835.07 1683654.31 762.13 758.94 104.40 88.00 107.59 97.00 102.00 661.94 656.94 AB-5S CAMA 6/13/2015 NA Ash Pore Water PVC 2.00 925826.14 1683643.87 761.90 758.86 18.00 NA 21.04 3.00 18.00 755.86 740.86 AB-5SL CAMA 6/13/2015 NA Ash Pore Water PVC 2.00 925830.45 1683648.40 761.85 759.01 44.00 NA 46.84 34.00 44.00 725.01 715.01 AB-6D CAMA 5/19/2015 NA Deep PVC 2.00 925975.31 1684557.84 765.33 762.22 94.60 68.00 97.71 85.00 90.00 677.22 672.22 AB-6S CAMA 5/16/2015 NA Ash Pore Water PVC 2.00 925967.88 1684548.14 765.55 762.46 12.00 NA 15.09 2.00 12.00 760.46 750.46 AB-6SL CAMA 5/16/2015 NA Ash Pore Water PVC 2.00 925971.58 1684552.45 765.50 762.38 18.30 NA 21.42 13.30 18.30 749.08 744.08 AB-7D CAMA 4/3/2015 NA Deep PVC 2.00 925222.99 1684495.40 771.14 767.72 91.00 76.00 94.42 84.00 89.00 683.72 678.72 AB-7S CAMA 4/3/2015 NA Ash Pore Water PVC 2.00 925209.92 1684491.49 771.09 767.91 16.00 NA 19.18 5.00 15.00 762.91 752.91 AB-8D CAMA 5/13/2015 NA Deep PVC 2.00 925009.61 1683904.80 765.38 762.10 84.70 68.00 87.98 72.00 77.00 690.10 685.10 AB-8S CAMA 5/13/2015 NA Ash Pore Water PVC 2.00 925019.79 1683895.81 765.10 762.16 21.00 NA 23.94 4.00 19.00 758.16 743.16 AB-8SL CAMA 5/12/2015 NA Ash Pore Water PVC 2.00 925014.83 1683900.49 765.29 762.04 54.40 NA 57.65 37.00 47.00 725.04 715.04 AB-9BR CAMA 5/12/2015 NA Bedrock PVC 2.00 924580.20 1684169.24 782.84 779.84 137.30 87.00 140.30 130.00 135.00 649.84 644.84 AB-9BRD CAMA 9/17/2016 NA Bedrock PVC 2.00 924574.00 1684161.00 783.26 780.20 196.30 104.40 199.36 191.00 196.00 589.20 584.20 AB-9D CAMA 5/7/2015 NA Deep PVC 2.00 924587.65 1684181.06 782.84 779.69 98.00 87.00 101.15 90.00 95.00 689.69 684.69 AB-9S CAMA 5/4/2015 NA Shallow PVC 2.00 924582.60 1684174.19 783.15 779.74 31.00 NA 34.41 13.00 28.00 766.74 751.74 Screened Interval Ash Basin Wells Background Wells TABLE 2-1 WELL CONSTRUCTION DATA BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 2-1 Well Construction DataTable 2-1 Well Construction Data Page 2 of 4 Identification Program Date Installed Date Abandoned Monitoring Zone Material Diameter (inches)Northing (feet)Easting (feet) Measuring Point TOC Elevation (Feet - MSL) Ground Surface Elevation (Feet - MSL) Boring Depth (Feet BGS) Surface Casing Depth Total Well Depth (Feet TOC) Top of Screen Elevation (Feet - MSL) Bottom of Screen Elevation (Feet - MSL) Screened Interval GWA-10D CAMA 4/17/2015 NA Deep PVC 2.00 927959.41 1681044.63 749.54 747.04 64.00 49.00 66.50 50.00 55.00 697.04 692.04 GWA-10DA CAMA 3/16/2017 NA Deep PVC 2.00 927955.44 1681075.62 NM 749.27 70.00 60.00 UNK 64.50 69.50 UNK UNK GWA-10S CAMA 4/15/2015 NA Shallow PVC 2.00 927962.34 1681038.32 749.11 746.78 26.00 NA 28.33 4.00 19.00 742.78 727.78 GWA-11D CAMA 4/11/2015 NA Deep PVC 2.00 928901.25 1681539.67 757.04 754.61 72.00 57.50 74.43 63.00 68.00 691.61 686.61 GWA-11S CAMA 4/9/2015 NA Shallow PVC 2.00 928897.66 1681535.08 757.03 754.49 58.00 NA 60.54 23.00 38.00 731.49 716.49 GWA-12BR CAMA 4/30/2015 NA Bedrock PVC 2.00 922343.07 1683369.37 836.46 833.35 125.00 59.50 128.11 106.00 111.00 727.35 722.35 GWA-12D CAMA 4/20/2015 NA Deep PVC 2.00 922342.71 1683363.55 837.16 834.04 74.00 59.00 77.12 63.00 68.00 771.04 766.04 GWA-12S CAMA 4/14/2015 NA Shallow PVC 2.00 922344.28 1683376.35 835.79 832.65 59.00 NA 62.14 40.00 55.00 792.65 777.65 GWA-16BR CAMA 4/5/2016 NA Bedrock PVC 2.00 926704.19 1681130.89 783.66 780.53 104.30 65.00 107.44 98.50 103.50 682.03 677.03 GWA-16D CAMA 6/11/2015 NA Deep PVC 2.00 926704.60 1681117.41 784.53 781.66 69.00 54.00 71.87 58.00 63.00 723.66 718.66 GWA-16DA CAMA 3/16/2017 NA Deep PVC 2.00 926714.09 1681119.79 NM 781.27 58.00 45.00 UNK 52.00 57.00 UNK UNK GWA-16S CAMA 6/10/2015 NA Shallow PVC 2.00 926702.99 1681121.24 784.41 781.51 47.00 NA 49.90 29.00 44.00 752.51 737.51 GWA-17D CAMA 6/12/2015 NA Deep PVC 2.00 926926.44 1681036.23 787.37 785.07 57.00 42.50 59.30 50.00 55.00 735.07 730.07 GWA-17S CAMA 6/9/2015 NA Shallow PVC 2.00 926932.90 1681038.01 787.61 785.07 41.50 NA 44.04 25.00 40.00 760.07 745.07 GWA-18D CAMA 3/23/2016 NA Deep PVC 2.00 927847.95 1681417.47 774.54 771.34 70.00 54.00 73.20 56.00 61.00 715.34 710.34 GWA-18S CAMA 3/23/2016 NA Shallow PVC 2.00 927855.27 1681414.60 774.59 771.33 28.00 NA 73.20 11.00 26.00 760.33 745.33 GWA-18SA CAMA 9/9/2016 NA Shallow PVC 2.00 927855.27 1681414.60 774.59 771.33 UNK NA 31.26 11.00 26.00 760.33 745.33 GWA-19BR CAMA 9/9/2016 NA Bedrock PVC 2.00 928181.00 1680914.00 743.06 740.40 107.40 37.00 87.06 79.40 84.40 661.00 656.00 GWA-19D CAMA 3/15/2016 NA Deep PVC 2.00 928203.16 1680896.71 743.24 740.19 47.00 37.00 50.05 38.00 43.00 702.19 697.19 GWA-19S CAMA 3/16/2016 NA Shallow PVC 2.00 928195.81 1680902.52 743.33 740.60 22.00 NA 24.73 4.00 19.00 736.60 721.60 GWA-19SA CAMA 1/25/2016 NA Shallow PVC 2.00 928195.81 1680902.52 743.33 740.06 22.00 NA 25.27 5.00 20.00 735.06 720.06 GWA-1BR CAMA 9/17/2016 NA Bedrock PVC 2.00 929331.00 1682261.00 NM 741.30 126.00 72.50 UNK 110.00 120.00 UNK UNK GWA-1D CAMA 3/31/2015 NA Deep PVC 2.00 929316.22 1682257.39 743.03 740.90 71.50 56.50 73.63 58.00 63.00 682.90 677.90 GWA-1S CAMA 3/26/2015 NA Shallow PVC 2.00 929324.44 1682258.38 743.08 740.72 36.00 NA 38.36 19.00 34.00 721.72 706.72 GWA-20BR CAMA 5/26/2016 NA Bedrock PVC 2.00 928565.27 1681746.53 773.69 770.27 86.00 61.00 117.42 81.00 86.00 689.27 684.27 GWA-20D CAMA 3/19/2016 NA Deep PVC 2.00 928576.10 1681755.49 773.72 770.44 65.00 49.00 68.28 55.00 60.00 715.44 710.44 GWA-20S CAMA 3/19/2016 NA Shallow PVC 2.00 928579.71 1681758.48 773.84 770.60 25.00 NA 101.15 7.00 22.00 763.60 748.60 GWA-20SA CAMA UNK NA Shallow PVC 3.00 NM NM NM NM 43.00 NA UNK UNK UNK UNK UNK GWA-21D CAMA 3/7/2016 NA Deep PVC 2.00 928908.01 1681367.12 734.79 731.67 37.00 18.50 40.12 24.60 29.60 707.07 702.07 GWA-21S CAMA 3/8/2016 NA Shallow PVC 2.00 928900.66 1681372.93 735.01 731.88 17.00 NA 20.13 6.00 16.00 725.88 715.88 GWA-22D CAMA 5/11/2016 NA Deep PVC 2.00 928366.84 1687317.74 735.73 732.23 35.00 20.00 38.50 29.00 34.00 703.23 698.23 GWA-22S CAMA 5/10/2016 NA Shallow PVC 2.00 928366.90 1687311.85 738.10 736.23 18.00 NA 19.87 UNK UNK UNK NM GWA-23D CAMA 4/13/2016 NA Deep PVC 2.00 922851.57 1683865.80 811.79 809.29 60.50 45.50 63.01 54.10 59.10 755.19 750.19 GWA-23S CAMA 4/7/2016 NA Shallow PVC 2.00 922851.54 1683868.75 811.57 809.37 45.00 NA 47.20 22.20 37.20 787.17 772.17 GWA-24BR CAMA 9/15/2016 NA Bedrock PVC 2.00 930051.00 1682703.00 641.78 639.00 86.50 36.80 89.28 59.00 69.00 580.00 570.00 GWA-24D CAMA 3/30/2016 NA Deep PVC 2.00 930055.04 1682694.04 642.21 639.11 20.00 NA 23.10 13.00 18.00 626.11 621.11 GWA-24S CAMA 3/30/2016 NA Shallow PVC 2.00 930055.10 1682688.14 643.21 640.28 10.00 NA 12.92 5.00 10.00 635.28 630.28 GWA-25BR CAMA 4/27/2016 NA Bedrock PVC 2.00 922791.75 1680990.97 855.76 852.48 105.00 56.00 108.28 95.00 100.00 757.48 752.48 GWA-26BR CAMA 4/30/2016 NA Bedrock PVC 2.00 922896.93 1681027.49 854.99 851.86 110.00 NA 113.13 83.00 88.00 768.86 763.86 GWA-26D CAMA 5/20/2016 NA Deep PVC 2.00 922897.06 1681015.70 856.80 854.01 70.00 NA 72.80 63.00 68.00 791.01 786.01 GWA-26S CAMA 4/30/2016 NA Shallow PVC 2.00 922897.00 1681021.60 856.16 852.87 51.00 NA 54.29 33.00 48.00 819.87 804.87 GWA-27BR CAMA 5/21/2016 NA Bedrock PVC 2.00 928449.24 1681368.02 758.32 755.46 116.00 46.00 118.86 108.00 113.00 647.46 642.46 GWA-27D CAMA 5/17/2016 NA Deep PVC 2.00 928441.99 1681364.99 758.30 755.73 44.33 31.00 46.87 38.00 43.00 717.73 712.73 GWA-27S CAMA 5/16/2016 NA Shallow PVC 2.00 928445.63 1681365.03 758.42 755.79 27.00 NA 29.64 7.00 22.00 748.79 733.79 GWA-2D CAMA 4/23/2015 NA Deep PVC 2.00 928983.86 1684580.09 787.51 784.58 70.00 55.00 72.93 58.00 63.00 726.58 721.58 GWA-2S CAMA 4/23/2015 NA Shallow PVC 2.00 928981.70 1684574.56 787.58 784.50 51.00 NA 54.08 34.00 49.00 750.50 735.50 GWA-30D CAMA 8/19/2016 NA Deep PVC 2.00 929314.00 1681876.00 738.49 736.00 45.00 NA 47.49 33.00 38.00 703.00 698.00 GWA-30S CAMA 8/18/2016 NA Shallow PVC 2.00 929314.00 1681881.00 738.43 736.10 26.00 NA 28.33 10.00 25.00 726.10 711.10 GWA-31D CAMA 8/11/2016 NA Deep PVC 2.00 928597.00 1680518.00 715.67 712.80 68.00 NA 70.87 55.00 60.00 657.80 652.80 GWA-31S CAMA 8/11/2016 NA Shallow PVC 2.00 928600.00 1680524.00 714.26 712.20 21.00 NA 23.06 5.00 20.00 707.20 692.20 GWA-32D CAMA 8/22/2016 NA Deep PVC 2.00 929272.00 1683702.00 706.84 704.40 81.00 NA 83.44 74.00 79.00 630.40 625.40 GWA-32S CAMA 8/24/2016 NA Shallow PVC 2.00 929272.00 1683688.00 707.68 705.30 31.00 NA 33.38 14.00 29.00 691.30 676.30 GWA-3D CAMA 5/7/2015 NA Deep PVC 2.00 928244.81 1687439.70 769.50 766.68 59.00 44.00 61.82 45.00 50.00 721.68 716.68 CSA Wells TABLE 2-1 WELL CONSTRUCTION DATA BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 2-1 Well Construction DataTable 2-1 Well Construction Data Page 3 of 4 Identification Program Date Installed Date Abandoned Monitoring Zone Material Diameter (inches)Northing (feet)Easting (feet) Measuring Point TOC Elevation (Feet - MSL) Ground Surface Elevation (Feet - MSL) Boring Depth (Feet BGS) Surface Casing Depth Total Well Depth (Feet TOC) Top of Screen Elevation (Feet - MSL) Bottom of Screen Elevation (Feet - MSL) Screened Interval GWA-3S CAMA 5/7/2015 NA Shallow PVC 2.00 928248.83 1687434.40 769.14 766.51 43.00 NA 45.63 27.00 42.00 739.51 724.51 GWA-4D CAMA 3/12/2015 1/19/2017 Deep PVC 2.00 927628.53 1686395.91 802.88 799.63 74.00 58.00 77.25 64.00 69.00 735.63 730.63 GWA-5BR CAMA 3/25/2015 1/19/2017 Bedrock PVC 2.00 926684.08 1685898.80 791.95 788.79 93.90 44.00 97.06 51.00 56.00 737.79 732.79 GWA-5BR2 CAMA 6/5/2015 1/19/2017 Bedrock PVC 2.00 926679.88 1685896.93 792.11 789.03 109.00 43.00 112.08 80.00 85.00 709.03 704.03 GWA-5D CAMA 3/12/2015 1/19/2017 Deep PVC 2.00 926686.52 1685893.68 791.29 788.46 60.50 44.00 63.33 51.80 56.80 736.66 731.66 GWA-5S CAMA 3/19/2015 1/19/2017 Shallow PVC 2.00 926681.92 1685905.35 792.04 788.88 40.00 NA 43.16 23.00 38.00 765.88 750.88 GWA-6D CAMA 3/17/2015 NA Deep PVC 2.00 924879.81 1685602.03 793.25 790.93 109.00 78.00 111.32 101.00 106.00 689.93 684.93 GWA-6S CAMA 3/13/2015 NA Shallow PVC 2.00 924874.41 1685608.92 793.37 790.95 70.00 NA 72.42 28.00 43.00 762.95 747.95 GWA-7D CAMA 3/16/2015 NA Deep PVC 2.00 924088.36 1685211.30 822.70 820.39 91.00 76.00 93.31 79.00 84.00 741.39 736.39 GWA-7S CAMA 3/11/2015 NA Shallow PVC 2.00 924089.91 1685204.62 822.87 820.37 43.50 NA 46.00 27.50 42.50 792.87 777.87 GWA-8D CAMA 4/10/2015 NA Deep PVC 2.00 923680.90 1684362.29 831.15 828.61 97.00 82.50 99.54 89.00 94.00 739.61 734.61 GWA-8S CAMA 4/10/2015 NA Shallow PVC 2.00 923683.73 1684368.98 832.01 828.27 39.00 NA 42.74 20.00 35.00 808.27 793.27 GWA-9BR CAMA 5/10/2016 NA Bedrock PVC 2.00 924737.90 1681483.82 794.53 791.58 130.00 NA 123.76 115.80 120.80 675.78 670.78 GWA-9D CAMA 6/4/2015 NA Deep PVC 2.00 924747.11 1681491.82 794.28 791.25 90.50 75.50 93.53 83.00 88.00 708.25 703.25 GWA-9S CAMA 5/29/2015 NA Shallow PVC 2.00 924744.66 1681495.09 793.99 790.77 53.00 NA 56.22 36.00 51.00 754.77 739.77 MW-200BR CAMA/NPDES 4/29/2015 NA Bedrock PVC 2.00 929442.68 1683073.64 636.42 633.65 50.50 12.30 53.27 45.00 50.00 588.65 583.65 MW-200D CAMA/NPDES 11/12/2010 NA Deep PVC 2.00 929458.00 1683061.00 636.05 633.30 20.80 NA 22.25 14.50 19.50 618.80 613.80 MW-200S CAMA/NPDES 11/12/2010 NA Shallow PVC 2.00 929458.70 1683066.00 635.89 633.18 10.80 NA 15.47 5.16 12.76 628.02 620.42 MW-201BR CAMA/NPDES 4/20/2016 NA Bedrock PVC 2.00 928567.62 1686927.90 783.77 781.37 105.30 46.00 107.70 98.00 103.00 683.37 678.37 MW-201D CAMA/NPDES 11/16/2010 NA Deep PVC 2.00 928562.90 1686914.00 783.98 781.26 45.00 NA 46.86 34.14 44.14 747.12 737.12 MW-202BR CAMA/NPDES 3/19/2015 NA Bedrock PVC 2.00 921469.71 1683338.39 789.63 786.87 130.50 81.00 133.26 98.00 103.00 688.87 683.87 MW-202D CAMA/NPDES 12/17/2010 NA Deep PVC 2.00 921477.00 1683327.00 790.78 787.87 57.50 NA 94.31 86.40 91.40 701.47 696.47 MW-202S CAMA/NPDES 12/15/2010 NA Shallow PVC 2.00 921472.90 1683332.00 789.97 787.61 89.20 NA 62.37 45.01 60.01 742.60 727.60 MW-203BR CAMA/NPDES 3/23/2015 NA Bedrock PVC 2.00 925590.65 1681600.82 787.26 784.09 120.50 70.50 123.67 94.00 99.00 690.09 685.09 MW-203D CAMA/NPDES 11/9/2010 NA Deep PVC 2.00 925588.30 1681612.00 785.57 783.37 89.60 NA 94.06 86.86 91.86 696.51 691.51 MW-203S CAMA/NPDES 11/9/2010 NA Shallow PVC 2.00 925599.30 1681606.00 786.14 783.46 39.80 NA 45.19 27.51 42.51 755.95 740.95 MW-204D CAMA/NPDES 11/15/2010 NA Deep PVC 2.00 926744.90 1681145.00 776.78 773.92 45.20 NA 43.93 36.07 41.07 737.85 732.85 MW-204S CAMA/NPDES 11/16/2010 NA Shallow PVC 2.00 926748.40 1681146.00 776.29 773.49 31.20 NA 36.74 18.94 33.94 754.55 739.55 MW-1 Solid Waste 8/3/1989 NA Shallow PVC 2.00 922922.40 1681193.41 852.69 850.55 44.50 33.10 47.20 35.06 45.06 815.49 805.49 MW-1D Solid Waste 12/9/2008 NA Bedrock PVC 2.00 922922.40 1681193.412 854.15 850.99 NA NA 90.53 82.37 87.37 768.62 763.62 MW-2 Solid Waste 8/8/1989 NA Shallow PVC 2.00 922846.36 1681733.05 858.05 855.44 50.50 37.90 50.00 37.39 47.39 818.05 808.05 MW-3 Solid Waste 7/27/1989 NA Shallow PVC 2.00 923705.55 1683902.09 842.81 840.57 47.80 37.00 49.50 37.26 47.26 803.31 793.31 MW-4 Solid Waste 8/3/1989 NA Shallow PVC 2.00 924475.51 1681837.40 767.58 766.10 39.50 28.20 40.20 28.72 38.72 737.38 727.38 MW-5 Solid Waste 8/8/1989 NA Shallow PVC 2.00 923909.94 1681154.80 786.77 785.39 60.50 48.30 60.20 48.82 58.82 736.57 726.57 MW-6 Solid Waste 5/4/2000 NA Shallow PVC 2.00 922825.02 1682168.86 836.91 834.40 UNK NA 36.84 24.33 34.33 810.07 800.07 MW-7 Solid Waste 12/9/2008 NA Shallow PVC 2.00 923651.05 1683063.65 815.57 812.52 UNK NA 14.26 1.21 11.21 811.31 801.31 MW2-1 Solid Waste 5/2/2000 1/7/2008 Deep PVC 2.00 924381.00 1682003.00 789.32 786.80 UNK UNK UNK 31.59 41.59 755.21 745.21 MW2-2 Solid Waste 5/2/2010 1/7/2008 Deep PVC 2.00 924603.13 1682531.00 787.23 784.70 UNK UNK UNK 27.10 37.10 757.60 747.60 MW2-3 Solid Waste 5/10/2000 1/7/2008 Deep PVC 2.00 924288.31 1683115.00 796.69 794.20 UNK UNK UNK 38.63 58.63 755.57 735.57 MW2-4 Solid Waste 5/10/2000 1/8/2008 Deep PVC 2.00 924165.81 1683470.00 814.70 812.20 UNK UNK UNK 37.70 57.72 774.50 754.48 MW2-5 Solid Waste 5/11/2000 1/8/2008 Deep PVC 2.00 923292.19 1683588.00 849.32 846.80 UNK UNK UNK 34.03 54.03 812.77 792.77 MW2-7 Solid Waste 11/14/2002 NA Deep PVC 2.00 924176.08 1682870.42 777.64 775.45 29.00 NA 30.62 13.43 28.43 762.02 747.02 MW2-7A Solid Waste UNK 1/8/2008 Bedrock PVC 2.00 NM NM 791.38 NM UNK UNK UNK UNK UNK 766.32 761.32 MW2-8 Solid Waste UNK 1/9/2008 Deep PVC 2.00 NM NM 821.40 NM UNK UNK UNK UNK UNK 804.84 794.84 MW2-9 Solid Waste 1/21/2003 NA Deep PVC 2.00 923952.32 1682953.63 797.38 794.75 14.50 NA 14.61 1.98 11.98 792.77 782.77 Pinehall Road Landfill Wells Compliance Wells CSA Wells Continued TABLE 2-1 WELL CONSTRUCTION DATA BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 2-1 Well Construction DataTable 2-1 Well Construction Data Page 4 of 4 Identification Program Date Installed Date Abandoned Monitoring Zone Material Diameter (inches)Northing (feet)Easting (feet) Measuring Point TOC Elevation (Feet - MSL) Ground Surface Elevation (Feet - MSL) Boring Depth (Feet BGS) Surface Casing Depth Total Well Depth (Feet TOC) Top of Screen Elevation (Feet - MSL) Bottom of Screen Elevation (Feet - MSL) Screened Interval MW2-10 Solid Waste UNK 1/9/2008 Shallow PVC 2.00 NM NM 817.53 NM UNK NA UNK UNK UNK 784.59 769.59 OB-1 Solid Waste 8/11/1989 1/9/2008 Shallow PVC 2.00 922955.00 1681597.00 888.40 886.10 UNK NA UNK UNK UNK 813.00 803.00 OB-3 Solid Waste UNK 1/10/2008 Shallow PVC 2.00 NM NM 787.47 NM UNK NA UNK UNK UNK 760.07 745.07 OB-4 Solid Waste 1/27/2003 NA Shallow PVC 2.00 924602.26 1682221.63 777.60 774.72 UNK NA 30.03 12.15 27.15 762.57 747.57 OB-5 Solid Waste 1/27/2003 NA Shallow PVC 2.00 924823.67 1682633.29 780.93 778.13 UNK NA 36.60 18.80 33.80 759.33 744.33 OB-6 Solid Waste UNK 1/10/2008 Shallow PVC 2.00 NM NM 796.57 NM UNK NA UNK UNK UNK 780.37 765.37 OB-7 Solid Waste UNK 1/10/2008 Shallow PVC 2.00 NM NM 802.67 NM UNK NA UNK UNK UNK 791.26 776.26 OB-8 Solid Waste UNK 1/11/2008 Shallow PVC 2.00 NM NM 799.59 797.11 UNK NA UNK 36.69 46.09 760.42 751.02 OB-9 Solid Waste 3/11/2004 NA Deep PVC 2.00 923785.17 1681344.57 799.59 797.11 46.40 36.50 48.57 36.69 46.09 760.42 751.02 MW-101D Voluntary 11/6/2006 UNK Deep PVC 2.00 928883.00 1682885.00 674.04 670.90 36.00 NA 40.44 32.30 37.30 638.60 633.60 MW-101S Voluntary 11/6/2006 UNK Shallow PVC 2.00 928885.00 1682888.00 674.12 671.23 15.00 NA 21.44 8.55 18.55 662.68 652.68 MW-102D Voluntary 11/16/2006 9/22/2015 Deep PVC 2.00 928941.00 1683088.00 653.07 650.13 24.00 NA 29.55 21.61 26.61 628.52 623.52 MW-102S Voluntary 11/20/2006 9/22/2015 Shallow PVC 2.00 928941.00 1683093.00 653.07 650.49 13.00 NA 17.51 6.93 14.93 643.56 635.56 MW-103D Voluntary 11/15/2006 NA Deep84 PVC 2.00 928999.00 1683538.00 684.25 681.39 27.00 NA 32.36 22.50 29.50 658.89 651.89 MW-103S Voluntary 11/14/2006 NA Shallow PVC 2.00 928996.00 1683535.00 684.00 681.16 10.00 NA 16.27 8.43 13.43 672.73 667.73 MW-104BR Voluntary 9/19/2016 NA Bedrock PVC 2.00 925781.00 1685663.00 798.56 796.20 151.50 99.50 153.86 144.00 149.00 652.20 647.20 MW-104D Voluntary 11/14/2006 NA Deep PVC 2.00 925787.00 1685668.00 798.34 795.83 84.00 NA 85.53 78.02 83.02 717.81 712.81 MW-104S Voluntary 11/14/2006 NA Shallow PVC 2.00 925787.00 1685673.00 798.68 796.13 43.00 NA 48.19 35.64 45.64 760.49 750.49 Prepared by: ALA Checked by: LWD/ECW Notes: BGS - Below ground surface MSL - Mean sea level NA - Not Applicable NM - Not measured PVC- Polyvinyl chloride UNK - Data not known Voluntary Wells Pinehall Road Landfill Wells Continued TABLE 2-2 COMPLIANCE MONITORING WELLS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 2-2- Compliance Sampling WellsTable 2-2- Compliance Sampling Wells Page 1 of 1 Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Cobalt Chromium Copper Iron Lead Magnesium Manganese Molybdenum Mercury Nickel Potassium Selenium Sodium Strontium Thallium Vanadium Zinc Chloride Sulfate Alkalinity Bicarobonate Carbonate TDS TSS Turbidity pH Temperature Spec. Cond. DO ORP Water Level Prepared by: ALA Checked by: WJW Notes: TDS - Total Dissolved Solids TSS - Total Suspended Solids DO - Dissolved Oxygen ORP - Oxidation Reduction Potential Spec Cond - Specific Conductace January, May, September Field Parameters Monitoring Wells Parameters Laboratory Parameters Frequency Monitoring Wells: MW-200S, MW-200D, MW- 201D, MW-202S, MW-202D, MW-203S, MW-203D, MW- 204S, MW-204D TABLE 2-3 SUMMARY OF ONSITE ENVIRONMENTAL INCIDENTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 2-3 Summary of Onsite Environmental Incidents.docx Page 1 of 1 Incident Number Year Reported Location of Incident Impacted Media Brief Description Status 3884 Summer 1991 Belews Lake – CCW discharge Water & Soil Light sheen of petroleum product along the shoreline resulted in investigations which revealed the presence of free product at the site. Closed 918847 09/25/2009 Belews Lake – CCW discharge Water 475 gallons of turbine oil leaked from a Main Turbine Oil Tank cooler into CCW system Closed NA 07/02/2012 Road to Chemical Pond at Ash Basin Soil Illegal dump of household materials (paint and paint waste) dumped on side of road going to the Chemical Pond. Closed 1003847 02/24/2012 Belews Lake – CCW discharge Water Slight oil sheen from lower bearing on CCW pump Closed 1010065 04/30/2012 Belews Lake – CCW discharge Water Slight oil sheen from hydraulic line on mobile crane Closed N/A 01/10/2013 Gravel lot near construction warehouse Soil 40-50 gallons of oil spilled to ground from air compressor that was being moved. Closed 1035855 01/16/2013 Belews Lake – CCW discharge Water Slight oil sheen from roof drain (fuel oil spill on roof). 1-2 gallons spilled Closed N/A 01/29/2013 Belews Lake – CCW discharge Water Sanitary waste water from clogged pipe overflowed into lake drain Closed Non- reportable 09/08/2013 South side of plant near transformers Soil Non-PCB oil spill from conservator bladder on transformer Closed 1065083 11/6/2013 Belews Lake – CCW discharge Water Slight oil sheen from residue on transformers. Approximately 1 quart of oil spilled Closed NA 5/30/2014 South side of plant near transformers Soil 9000 gallons of Non-PCB oil spill from tanker truck due to landing gear failure. Closed 1084720 06/03/2014 Belews Lake – CCW discharge Water Slight oil sheen from oil trap tank at transformers. Less than 2 gallons spilled. Closed 1090174 07/24/2014 Belews Lake – CCW discharge Water Slight oil sheen on lake. Est. less than 1 quart of oil. Closed NA 04/13/2015 South side of plant near transformers Soil 5 gallons of non-PCB oil spilled to ground from transformer Closed NA 9/26/2015 Belews Creek Steam Station Water Hydraulic oil leak from Dozer onto coal pile Closed NA 2/17/2016 Belews Creek Steam Station Soil Spill from FGD Filter Feed Tank Closed NA 7/12/2016 U1A Hydroveyor to the SW basin to the Belews Lake Soil Vent/overflow for U1A Hydroveyor tied to storm water system Closed NA 8/4/2016 Belews Creek steam station Craig road landfill Soil Leachate from CRLF released to ground and Belews Reservoir Closed NA 9/15/2016 Ash sluice line that leads to the lake Soil Wet ash suction process water was released onto the ground. Estimated ash release to be 562 gallons. Estimated water released is 10,000 gallons. Closed NA 2/27/2017 Belews Creek CCP Dry Bottom Ash Project Water & Soil Release of firewater and sediment. Estimated that 150,000 gallons of water was released. Closed Prepared By: ALA Checked By: WJW Notes: NA – Not Applicable CCW – coal combustion waste PCB - polychlorinated biphenyl Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Belews Creek Steam Station Page 1 of 1 Table 3-1. Range (10th percentile – 90th percentile) in Bulk Composition of Fly Ash, Bottom Ash, Rock, and Soil. (Source: EPRI 2009a) TABLE 3-3 REGIONAL BACKGROUND SOIL SPLP DATA BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\Draft Final PDF 10_20_2017\Tables\Table 3-3 Background SPLP TableTable 3-3 Background SPLP Table Page 1 of 2 pH Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chloride Chromium (VI)Chromium Cobalt Copper Iron Lead Magnesium S.U.ug/L ug/L ug/L ug/L ug/L ug/L ug/L mg/L mg/L ug/L ug/L ug/L ug/L ug/L ug/L mg/L 6.5-8.5 NE 1*10 700 4*700 2 NE 250 10 10 1*1000 300 15 NE Site Name Sample ID Sample Collection Date Allen BG-01D (45-50)05/01/2015 NA 397 <0.5 <0.5 298 <0.2 234 <0.08 0.247 <7.3 NA <0.5 0.24 j 1.2 172 j+<0.1 j 0.0951 j+ Asheville CB-09 SB (25-27) 04/12/2015 NA 46 <0.5 <0.5 60.3 <0.2 58.8 <0.08 0.123 <6 NA 0.96 0.13 j 0.27 j <50 0.073 j 0.0238 Asheville MW-23BR (2-3)06/14/2015 NA 44.4 <0.5 0.14 j 139 0.11 j 88.4 0.1 0.442 <6.1 NA 1.7 0.89 0.86 j 17.3 j 0.12 0.228 Cape Fear BG-01 (Geosyntec) (2.0-2.5)08/20/2013 NA 337 <0.34 <0.42 NA NA 30.9 j 0.55 NA NA NA <1.6 NA <2.7 NA 1.3 NA Cape Fear MW-09 SB (2-3)04/25/2015 NA 9070 0.27 j 4.3 241 0.73 88.9 0.032 j 0.496 <5.4 NA 3.9 15.9 4.7 10800 5.5 1.01 Cape Fear MW-09 SB (6-7)04/25/2015 NA 11600 <0.5 0.93 228 0.4 72.4 0.053 j 1.02 <5.8 NA 6.3 2 5.9 10100 6.3 1.47 Cape Fear MW-22 SB (3-4)06/10/2016 NA 50900 M1 <0.5 2.2 230 1.6 <250 L1 <0.08 2.5 <5 NA 48.7 14.4 43.8 40800 M1 8.3 5.9 Cliffside BG-02D (8.5-10)02/23/2015 NA 648 <0.5 <0.5 126 <0.2 20.6 <0.08 0.191 <6.2 j NA 1.1 2.1 <1 550 0.45 0.106 Cliffside MW-30D (8.5-10)02/23/2015 NA 19.1 <0.5 <0.5 2.5 <0.2 23.2 <0.08 0.204 <8 NA 0.51 4.8 <1 <50 <0.1 0.118 Cliffside MW-30D (28.5-30)02/23/2015 NA 88.6 <0.5 <0.5 3.1 <0.2 21.5 <0.08 0.177 <7.6 NA 1.2 0.79 <1 256 0.17 0.213 Mayo MW-08BR (25.5-26)02/11/2015 NA 53900 <0.5 0.82 702 0.78 <5 0.24 12.8 <5.5 NA 858 83.7 161 93400 5.7 58.2 Mayo MW-12D (25-26)04/27/2015 NA 3.2 j <0.5 <0.5 55.5 <0.2 38 <0.08 0.123 <6 NA 0.23 j 0.19 j 0.74 j <50 0.053 j 0.137 Mayo SB-01 (13.5-14.5)03/04/2015 NA 3030 <0.5 <0.5 38.8 0.3 18.1 <0.08 0.407 <6.4 NA 1.1 2.5 4.4 3140 0.69 0.175 Riverbend BG-02D (48-49)06/15/2015 NA <100 <5 <5 2.7 j+<2 13.7 j+<0.8 0.249 j <6.3 j NA <5 <5 <10 <500 <1 0.108 j+ Riverbend BG-03D (23-24)06/13/2015 NA 2330 <0.5 0.25 j 135 0.15 j 59.8 0.094 0.264 j+<6.3 NA 1.7 j+0.51 j+12.2 386 j+0.76 0.0827 j+ Riverbend GWA-21D (8.5-10)07/16/2015 NA 262 j+<25 <25 <500 j <10 <250 j <4 <2 j <6.1 NA <25 j <25 <50 j <2500 j <5 j <0.5 j Riverbend GWA-21D (48.5-50)07/18/2015 NA <500 <25 <25 5.4 j <10 <250 j <4 <2 <6.2 NA <25 <25 <50 <2500 <5 <0.5 Roxboro MW-08 (14-16)04/27/2015 NA 29900 <0.5 1.4 351 1 16 <0.08 2.83 <5.3 NA 7.1 17.9 15.8 41500 11.3 4.9 Roxboro MW-14BR (37-38)02/25/2015 NA 10400 <0.5 0.53 304 <0.2 48 <0.08 3.36 2.8 j NA 7.3 12.9 18.3 12700 1.5 6.8 Roxboro MW-18 (31-33) 05/16/2015 NA 36400 <0.5 1.5 447 1.2 79.5 0.2 3.23 <6 NA 9.2 5.4 18 26000 7.9 3.32 Marshall GWA-04D (52-53)06/30/2015 NA 2180 <0.5 0.17 j 112 0.26 66.5 <0.08 0.258 <5 j NA 4 0.84 4.5 2520 0.44 0.141 Marshall GWA-05D (27.5-29)07/01/2015 NA 69.2 j+<5 <5 6.2 j+<2 <50 <0.8 <0.4 <7.7 NA <5 <5 j NA <500 j <1 0.0773 j+ Notes: - Bold highlighted concentration indicates exceedance of the 15A NCAC 02L .0202 Standard or the IMAC. (Effective date for 15A NCAC 02L .0202 Standard and IMAC is April 1, 2013) < - concentration not detected at or above the adjusted reporting limit. j - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. J- - Estimated concentration, biased low. M1 - Matrix spike recovery was high: the associated Laboratory Control Spike (LCS) was acceptable. NA - Not analyzed SPLP leachate analytical results are compared to 2L and/or IMAC for reference purposes only. The results do not represent groundwater samples; therefore, comparison to 2L and/or IMAC is not required. NC2L Standard Reporting Units Analytical Parameter TABLE 3-3 REGIONAL BACKGROUND SOIL SPLP DATA BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\Draft Final PDF 10_20_2017\Tables\Table 3-3 Background SPLP TableTable 3-3 Background SPLP Table Page 2 of 2 Manganese Mercury Molybdenum Nickel Nitrate (as N)Nitrate Potassium Selenium Silver Sodium Strontium Sulfate Thallium Tin Vanadium Zinc Cr(III) ug/L ug/L ug/L ug/L mg-N/L mg/L mg/L ug/L ug/L mg/L ug/L mg/L ug/L ug/L ug/L ug/L ug/L 50 1 NE 100 10 10 NE 20 20 NE NE 250 0.2*NE 0.3*1000 NE Site Name Sample ID Sample Collection Date Allen BG-01D (45-50)05/01/2015 10.2 j+<0.2 <0.5 0.27 j+NA <0.29 j 0.346 j+<0.5 j NA 1.83 j+6.1 j+3 j+<0.1 j NA 0.39 j+214 j+<0.5 Asheville CB-09 SB (25-27) 04/12/2015 10.5 <0.2 <0.5 0.37 j <0.24 NA 0.597 <0.5 NA 0.412 1.2 1.7 j <0.1 NA <1 54.6 NA Asheville MW-23BR (2-3)06/14/2015 24 <0.2 0.27 j 1.1 <0.24 NA 0.316 <0.5 NA 2.28 6.2 5.5 0.095 j NA <1 88.8 NA Cape Fear BG-01 (Geosyntec) (2.0-2.5)08/20/2013 173 <0.06 NA 1.6 j NA NA NA <0.5 NA NA NA NA <0.15 NA NA <2 NA Cape Fear MW-09 SB (2-3)04/25/2015 173 <0.2 2.1 5.5 <0.22 NA 1.23 0.42 j NA 4.91 10 6.6 0.049 j NA 10.2 88.8 NA Cape Fear MW-09 SB (6-7)04/25/2015 175 <0.2 3.5 2.8 <0.23 NA 1.92 <0.5 NA 4.9 19.2 4.7 0.045 j NA 10.8 74.7 NA Cape Fear MW-22 SB (3-4)06/10/2016 670 <0.2 NA 26 0.24 NA <5 6.1 NA 6.7 L1 30 7.9 0.27 NA 83.5 100 NA Cliffside BG-02D (8.5-10)02/23/2015 37.5 <0.2 j <0.5 0.81 NA <0.25 j 0.34 <0.5 NA 0.334 1.6 2 j-<0.1 NA 1.2 34.1 1.1 Cliffside MW-30D (8.5-10)02/23/2015 97 <0.2 <0.5 0.57 NA 0.44 j-1.12 <0.5 NA 0.702 0.97 3.1 j <0.1 NA <1 <5 0.51 Cliffside MW-30D (28.5-30)02/23/2015 8.6 <0.2 j <0.5 <0.5 NA 0.44 j-0.43 <0.5 NA 0.5100001 <0.5 1.6 j <0.1 NA <1 <5 1.2 Mayo MW-08BR (25.5-26)02/11/2015 3410 <1.2 <0.5 311 0.29 NA 6.36 <0.5 NA 3.74 169 2.8 0.28 NA 166 118 NA Mayo MW-12D (25-26)04/27/2015 3.3 <0.2 <0.5 0.34 j 0.25 NA 0.0965 <0.5 NA 1.25 2.2 3.1 <0.1 NA <1 25.3 NA Mayo SB-01 (13.5-14.5)03/04/2015 313 <0.6 <0.5 0.57 0.38 NA 0.414 <0.5 NA 2.3 12.1 3 <0.1 NA 7 <5 NA Riverbend BG-02D (48-49)06/15/2015 <5 <0.2 j <5 <5 NA 0.92 j 0.428 j <5 NA 0.882 j+1.9 j 2.6 j <1 NA <10 <50 <5 Riverbend BG-03D (23-24)06/13/2015 21.7 j+<0.2 0.28 j 1.4 j+NA <0.25 j 0.299 j+<0.5 NA 2.08 6.4 j+<2.5 j 0.097 j NA 1.8 50.5 j+1.7 j+ Riverbend GWA-21D (8.5-10)07/16/2015 <25 j <0.6 <25 j <25 j NA 0.32 <2.5 j <25 NA <2.5 j <25 j 1.7 j <5 NA <50 <250 j <25 j Riverbend GWA-21D (48.5-50)07/18/2015 12 j <0.6 <25 j <25 NA 0.36 <2.5 <25 NA 3.08 j+<25 2 j <5 NA <50 <250 <25 Roxboro MW-08 (14-16)04/27/2015 1690 <0.2 0.26 j 11.8 <0.21 NA 1.81 0.31 j NA 3.84 50.9 2.8 0.056 j NA 97.6 129 NA Roxboro MW-14BR (37-38)02/25/2015 584 <0.2 <0.5 9.2 0.36 NA 3.38 <0.5 NA 11.4 47.6 2.9 <0.1 NA 42.5 46.5 NA Roxboro MW-18 (31-33) 05/16/2015 1660 <0.2 7.8 7.1 0.47 NA 7.170001 0.46 j NA 7.49 58.3 3.2 0.15 NA 20.8 155 NA Marshall GWA-04D (52-53)06/30/2015 67.1 <0.2 0.43 j 1.4 NA <0.2 j 0.195 <0.5 NA 1.39 4.2 2.4 j+<0.1 NA 6.9 75.2 4 Marshall GWA-05D (27.5-29)07/01/2015 3.2 j <0.2 <5 j <5 j NA <0.31 j 0.307 j-<5 NA 0.577 7.2 j+3.1 j+<1 NA NA <50 <5 Prepared by: BER Checked by: ECW Notes: - Bold highlighted concentration indicates exceedance of the 15A NCAC 02L .0202 Standard or the IMAC. (Effective date for 15A NCAC 02L .0202 Standard and IMAC is April 1, 2013) < - concentration not detected at or above the adjusted reporting limit. j - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. J- - Estimated concentration, biased low. M1 - Matrix spike recovery was high: the associated Laboratory Control Spike (LCS) was acceptable. NA - Not analyzed SPLP leachate analytical results are compared to 2L and/or IMAC for reference purposes only. The results do not represent groundwater samples; therefore, comparison to 2L and/or IMAC is not required. Analytical Results Analytical Parameter Reporting Units NC2L Standard Table 3-2. Soil/Material Properties for Ash, Fill, Alluvium, and Soil/Saprolite Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, August 11, 2016. Belews Creek Steam Station Page 1 of 2 Plastic Limit (PL) Liquid Limits (LL) Plasticity Index (PI)Coarse7 Fine8 Coarse9 Medium10 Fine11 Silt12 Clay13 AB-1S UD 10-12 Tan-Brown Sandy Silt ML 2.617 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-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 GWA-12D UD 25-27 White-Brown Sandy Silt ML 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 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 Borehole Total Porosity2 Specific Gravity2Material DescriptionSample # Grain Size5 Atterberg Limits4 Hydrostratigraphic Layer Natural Moisture Content3 (%)USCS1Depth (ft)% Fines% Sand% Gravel Vertical Hydraulic Conductivity6, kv20, (cm/sec) Estimated Specific Yield/Effec tive Porosity14 Table 3-2. Soil/Material Properties for Ash, Fill, Alluvium, and Soil/Saprolite Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, August 11, 2016. Belews Creek Steam Station Page 2 of 2 Plastic Limit (PL) Liquid Limits (LL) Plasticity Index (PI)Coarse7 Fine8 Coarse9 Medium10 Fine11 Silt12 Clay13 Borehole Total Porosity2 Specific Gravity2Material DescriptionSample # Grain Size5 Atterberg Limits4 Hydrostratigraphic Layer Natural Moisture Content3 (%)USCS1Depth (ft)% Fines% Sand% Gravel Vertical Hydraulic Conductivity6, kv20, (cm/sec) Estimated Specific Yield/Effec tive Porosity14 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 MW-200BR 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: 19.0mm – 75mm 8. Fine Gravel: 4.75mm – 19.0mm 9. Coarse Sand: 2.0mm – 4.75mm 10. Medium Sand: 0.425mm – 2.0mm 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 AB-2D on laboratory reports. 17. AB-3GTB (20-22', 45-47') represented as AB-3D on laboratory reports. 18. AB-4D represented as AB-4BR on laboratory reports. 19. AB-4BR represented as AB-4D on laboratory reports. 20. AB-9GTB (45-47') represented as AB-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. Table 4-1. Public and Private Water Supply Wells Within 0.5-Mile Radius of Belews Creek Steam Station Ash Basin Compliance Boundary Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015.Belews Creek Steam Station Page 1 of 3 Well ID (shown on Figure 1) Public Water System Name Property Address (well location)Parcel ID Number Reported Well Use Approximate Distance from Ash Basin Compliance Boundary (ft) Direction from Ash Basin Well Depth (ft-bgs) Well Casing Depth (ft-bgs) Well Yield (gpm) PWS: NC0285432 Withers Chapel UMC 2793 Pine Hall Rd, Belews Creek, NC 27009 6982-00-79-8715 Transient, Non-Community 1350 NE N/A N/A 40 37 N/A 2690 Pine Hall Rd, Belews Creek, NC 27009 6983-00-80-3799 Private, Unknown 2480 NE N/A N/A N/A 39 N/A Hall Road, Belews Creek, NC 27009 6983-00-72-6607 Private, Unknown 1880 NE N/A N/A N/A 33 N/A 2766 Pine Hall Road, Belews Creek, NC 27009 6983-00-70-8158 Private, Unknown 1600 NE N/A N/A N/A 36 N/A 2531 Middleton Loop, Walnut Cove, NC 27052 6983-00-62-7082 Private, Unknown 320 N-NE N/A N/A N/A 38 N/A 2465 Middleton Loop, Walnut Cove, NC 27052 6983-00-50-8497 Private, Unknown 1080 N-NE N/A N/A N/A 35 N/A Middleton Loop, Walnut Cove, NC 27052 6983-00-51-8097 Private, Unknown 1680 N-NE N/A N/A N/A 3 N/A 1051 Old Plantation Rd, Walnut Cove, NC 27052 6972-00-83-5098 Private, Unknown 1880 SW N/A N/A N/A 6 N/A 1045 Old Plantation Road, Walnut Cove, NC 27052 6972-00-72-6478 Private, Unknown 2000 SW N/A N/A N/A 4 N/A 1050 Georgia Road, Walnut Cove, NC 27052 6982-00-01-4573 Private, Unknown 1560 SW N/A N/A N/A 2 N/A 3921 Pine Hall Road, Walnut Cove, NC 27052 6982-00-02-0498 Private, Unknown 1360 SW N/A N/A N/A 7 N/A 3881 Pine Hall Road, Walnut Cove, NC 27052 6982-00-02-3366 Private, Unknown 1240 SW N/A N/A N/A 41 N/A 2832 Pine Hall Road, Belews Creek, NC 27009 6982-00-79-2781 Assumed Domestic 920 NE N/A N/A N/A 43 N/A 2531 Middleton Loop, Walnut Cove, NC 27052 6983-00-62-7082 Assumed Domestic 160 NE N/A N/A N/A 44 N/A 2531 Middleton Loop, Walnut Cove, NC 27052 6983-00-62-7082 Assumed Domestic 240 NE N/A N/A N/A 42 N/A 2481 Middleton Loop, Walnut Cove, NC 27052 6982-00-69-1695 Assumed Domestic 310 N-NE N/A N/A N/A 45 N/A 2461 Middleton Loop, Walnut Cove, NC 27052 6983-00-60-1271 Assumed Domestic 920 N-NE N/A N/A N/A 11 N/A 1180 Old Plantation Road, Walnut Cove, NC 27052 6972-00-94-4178 Assumed Domestic 1600 W-SW N/A N/A N/A 12 N/A 1190 Old Plantation Road, Walnut Cove, NC 27052 6972-00-84-8281 Assumed Domestic 2080 W-SW N/A N/A N/A Public Water Supply Wells Assumed Private Water Supply Well Field Identified Private Water Supply Well Table 4-1. Public and Private Water Supply Wells Within 0.5-Mile Radius of Belews Creek Steam Station Ash Basin Compliance Boundary Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015.Belews Creek Steam Station Page 2 of 3 Well ID (shown on Figure 1) Public Water System Name Property Address (well location)Parcel ID Number Reported Well Use Approximate Distance from Ash Basin Compliance Boundary (ft) Direction from Ash Basin Well Depth (ft-bgs) Well Casing Depth (ft-bgs) Well Yield (gpm) 13 N/A 1235 Old Plantation Road, Walnut Cove, NC 27052 6972-00-84-3161 Assumed Domestic 2600 W-SW N/A N/A N/A 10 N/A 1270 Old Plantation Road, Walnut Cove, NC 27052 6972-00-84-3844 Assumed Domestic 2600 W-SW N/A N/A N/A 23 N/A 1115 Old Plantation Road, Walnut Cove, NC 27052 6972-00-93-0491 Assumed Domestic 1920 SW N/A N/A N/A 22 N/A 1085 Old Plantation Road, Walnut Cove, NC 27052 6972-00-93-1098 Assumed Domestic 16800 SW N/A N/A N/A 17 N/A 2588 Martin Luther King Jr. Road, Walnut Cove, NC 27052 6972-00-81-9891 Assumed Domestic 2600 SW N/A N/A N/A 21 N/A 4067 Pine Hall Road, Walnut Cove, NC 27052 6972-00-91-4415 Assumed Domestic 2520 SW N/A N/A N/A 9 N/A 4011 Pine Hall Road, Walnut Cove, NC 27052 6972-00-92-5008 Assumed Domestic 1680 SW N/A N/A N/A 16 N/A 3981 Pine Hall Road, Walnut Cove, NC 27052 6972-00-92-6311 Assumed Domestic 1910 SW N/A N/A N/A 15 N/A 3965 Pine Hall Road, Walnut Cove, NC 27052 6972-00-92-7363 Assumed Domestic 1640 SW N/A N/A N/A 24 N/A 3881 Pine Hall Road (SR 1904), Walnut Cove, NC 27052 6982-00-02-3366 Assumed Domestic 1080 SW N/A N/A N/A 18 N/A 3857 Pine Hall Road, Walnut Cove, NC 27052 6982-00-02-7581 Assumed Domestic 960 SW N/A N/A N/A 19 N/A 3857 Pine Hall Road, Walnut Cove, NC 27052 6982-00-02-7581 Assumed Domestic 970 SW N/A N/A N/A 28 N/A 1051 Old Plantation Rd, Walnut Cove, NC 27052 6972-00-83-5098 Domestic--drinking, irrigation 2170 SW 825 82 2 25 N/A 3946 Pine Hall Rd, Walnut Cove, NC 27052 6972-00-93-5203 Domestic--drinking, water 1550 SW 305 115 15 29 N/A 3951 Pine Hall Rd, Walnut Cove, NC 27052 6972-00-92-8374 Domestic 1520 SW 205 75 2 30 N/A 3906 Pine Hall Rd, Walnut Cove, NC 27052 6982-00-03-5785 Domestic 630 SW 205 85 15 26 N/A 1140 Old Plantation Rd, Walnut Cove, NC 27052 6972-00-93-3833 Domestic--drinking, irrigation, livestock 1580 SW 500 N/A N/A 34 N/A 1413 Middleton Loop Rd, Walnut Cove, NC 27052 6982-00-06-5073 Domestic 160 W 500 40 50 46 N/A 2816 Pine Hall Rd, Belews Creek, NC 27009 6982-00-79-4809 Domestic 1180 NE N/A N/A N/A 27 N/A 1184 Old Plantation Rd, Walnut Cove, NC 27052 6972-00-94-8482 Domestic 1210 SW N/A N/A N/A 32 N/A 1245 Middleton Loop, Walnut Cove, NC 27052 6982-00-14-2869 Domestic--drinking, irrigation 400 W 500 N/A N/A Recorded Private Water Supply Well Table 4-1. Public and Private Water Supply Wells Within 0.5-Mile Radius of Belews Creek Steam Station Ash Basin Compliance Boundary Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015.Belews Creek Steam Station Page 3 of 3 Well ID (shown on Figure 1) Public Water System Name Property Address (well location)Parcel ID Number Reported Well Use Approximate Distance from Ash Basin Compliance Boundary (ft) Direction from Ash Basin Well Depth (ft-bgs) Well Casing Depth (ft-bgs) Well Yield (gpm) 20 N/A 1020 Old Plantation Road, Walnut Cove, NC 27052 6972-00-92-4437 Domestic--drinking 1760 SW N/A N/A N/A 31 N/A 1413 Middleton Loop, Walnut Cove, NC 27052 6982-00-06-5073 Domestic- livestock 1000 W 500 N/A N/A 40 N/A 2241 Middleton Loop, Walnut Cove, NC 27052 6983-00-40-2365 Domestic--drinking 1000 N 70 60 N/A 14 N/A 3906 Pine Hall Road, Walnut Cove, NC 27052 6982-00-03-5785 Domestic--drinking 960 SW 250 N/A N/A 8 N/A 3939 Pine Hall Road, Walnut Cove, NC 27052 6972-00-92-9441 Domestic--drinking 1520 SW N/A N/A N/A 5 N/A 3942 Pine Hall Road, Walnut Cove, NC 27052 6972-00-93-8159 Domestic--drinking, water 1280 SW N/A N/A N/A 1 N/A 1220 Old Plantation Rd, Walnut Cove, NC 27052 6972-00-94-2658 Domestic--drinking, irrigation 2400 W-SW 425 N/A N/A 47 N/A 1230 Old Plantation Rd, Walnut Cove, NC 27052 6972-00-94-1906 Domestic--drinking, irrigation, livestock 2500 W-SW 200 N/A N/A 49 N/A 3906 Pine Hall Road, Walnut Cove, NC 27052 6982-00-03-5785 Not in use 960 SW N/A N/A N/A 48 N/A 3906 Pine Hall Road, Walnut Cove, NC 27052 6982-00-03-5785 Domestic--drinking 960 SW 250 N/A N/A 50 N/A 4056 Pine Hall Rd, Belews Creek, NC 27009 6972-00-91-7610 Domestic--drinking 2630 SW N/A N/A N/A Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Belews Creek Steam Station Page 1 of 1 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 TABLE 4-3 PRIVATE WATER SUPPLY ANALYTICAL RESULTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 4-3 Private Water Supply Analytical Results Page 1 of 4 pH Temp Spec Cond DO ORP Eh Turbidity Alkalinity Aluminum Antimony Arsenic Barium Beryllium Bicarbonate Alkalinity Boron Cadmium Calcium Carbonate Alkalinity Chloride Chromiu m (VI)Chromium Cobalt S.U.Deg C umhos/cm mg/L mV mV NTUs mg/L ug/L ug/L ug/L ug/L ug/L mg/L ug/L ug/L mg/L mg/L mg/L ug/L ug/L ug/L 6.5-8.5 NE NE NE NE NE NE NE NE 1*10 700 4*NE 700 2 NE NE 250 10 10 1* Preliminary Background Threshold Values (Bedrock Unit)6.2-6.5 NE NE NE NE NE NE 81.3 100 0.5 0.51 6.2 0.2 77.6 50 0.08 10.3 81.3 3 0.33 5.3 0.76 Sample ID Sample Collection Date BC1 (Duke)10/07/2015 NM NM NM NM NM NM NM NA 107 <1 1.75 <5 <1 NA <50 <1 30 NA 6.7 NA <5 <1 BC1 (Vendor)10/07/2015 7.7 16 220 0.17 76 281 1 81.1 66.2 <0.5 1.3 2.4 <0.2 81.1 <5 <0.08 NA <5 7 0.093 1.4 <0.5 BC10 (Duke)09/15/2015 NM NM NM NM NM NM NM NA <5 <1 <1 20 <1 NA <50 <1 2.74 NA 3 NA <5 <1 BC10 (Vendor)09/15/2015 8.1 19 139 1.50 113 318 <1 18.8 <10 <0.5 <0.5 18.6 <0.2 18.8 <5 <0.08 NA <5 3 0.057 1.6 <0.5 BC-1000 10/13/2016 7.9 17 186 0.30 NM NM <1 80.8 <10 <0.5 1.1 0.35 <0.1 80.8 <25 <0.08 29.3 <5 2.1 <0.03 <0.5 <0.1 BC-1001 10/13/2016 6.3 17 81 5.30 NM NM <1 24.8 <10 <0.5 0.39 0.61 <0.1 24.8 <25 <0.08 5.03 <5 3.7 0.049 <0.5 <0.1 BC-1002 10/27/2016 5.3 17 27 7.00 NM NM <1 8.2 <10 <0.5 <0.1 16.5 0.1 8.2 <25 <0.08 0.991 <5 1.4 <0.03 <0.5 <0.1 BC-1003 10/27/2016 6.2 18 51 5.50 NM NM <1 20.6 10.3 <0.5 0.18 1.2 <0.1 20.6 <25 <0.08 2.53 <5 1.2 <0.03 <0.5 <0.1 BC-1004 10/13/2016 5.9 17 53 5.50 NM NM <1 18.1 <10 <0.5 <0.1 6.2 <0.1 18.1 <25 <0.08 2.15 <5 1.5 <0.03 <0.5 <0.1 BC-1005 10/13/2016 6.6 18 99 0.90 NM NM <1 37.6 <10 <0.5 0.53 0.74 <0.1 37.6 <25 <0.08 9.8 <5 1.2 <0.03 <0.5 <0.1 BC-1006 10/13/2016 6.0 18 44 5.80 NM NM <1 14.8 <10 <0.5 <0.1 16.5 0.13 14.8 <25 <0.08 2.58 <5 1.1 1 1.3 <0.1 BC-1007 04/26/2017 6.3 16 118 0.20 -18 187 4.5 43.6 <10 <0.5 <0.1 11.1 <0.1 43.6 <25 <0.08 10.8 <5 1.5 0.79 0.77 0.25 BC13 (Duke)08/06/2015 NM NM NM NM NM NM NM NA <5 <1 6.94 <5 <1 NA <50 <1 38 NA 13 NA <5 <1 BC13 (Vendor)08/06/2015 7.5 18 156 0.65 80 285 <1 120 <10 <0.5 6.8 1.9 <0.2 120 22.5 <0.08 NA <5 14.9 <0.03 <0.5 <0.5 BC14 (Duke)08/06/2015 NM NM NM NM NM NM NM NA <5 <1 <1 6 <1 NA <50 <1 2.15 NA 1.6 NA <5 <1 BC14 (Vendor)08/06/2015 6.0 23 30 3.14 244 449 <1 18 <10 <0.5 <0.5 5.6 <0.2 18 <5 0.083 NA <5 1.8 <0.03 <0.5 <0.5 BC15 (Duke)08/10/2015 NM NM NM NM NM NM NM NA 17 <1 <1 <5 <1 NA <50 <1 13.9 NA 5.5 NA <5 <1 BC15 (Vendor)08/10/2015 6.2 19 116 6.73 232 437 <1 37.2 <10 <0.5 0.83 3.4 <0.2 37.2 <5 <0.08 NA <5 5.7 0.41 0.96 <0.5 BC17 (Duke)08/10/2015 NM NM NM NM NM NM NM NA <5 <1 14.1 8 <1 NA <50 <1 26.8 NA 3.8 NA <5 <1 BC17 (Vendor)08/10/2015 2.6 20 215 0.55 195 400 <1 95.7 <10 <0.5 14.1 7.8 <0.2 95.7 <5 <0.08 NA <5 4 <0.03 <0.5 <0.5 BC18 (Duke)08/10/2015 NM NM NM NM NM NM NM NA <5 <1 1.99 <5 <1 NA <50 <1 10.4 NA 1.4 NA <5 <1 BC18 (Vendor)08/10/2015 6.3 17 105 7.33 243 448 <1 49.5 <10 <0.5 2 2.3 <0.2 49.5 <5 <0.08 NA <5 1.6 0.59 0.79 <0.5 BC19 (Duke)08/11/2015 NM NM NM NM NM NM NM NA <5 <1 6.15 <5 <1 NA <50 <1 19.3 NA 1.7 NA <5 <1 BC19 (Vendor)08/11/2015 6.6 24 148 3.78 222 427 <1 66.9 <10 <0.5 6.1 3.9 <0.2 66.9 <5 0.11 NA <5 1.8 <0.03 <0.5 <0.5 BC2 Well 1 (Duke)03/04/2015 NM NM NM NM NM NM NM NA 18 <1 <1 12 <1 NA <50 <1 10.4 NA 1.5 NA <5 <1 BC2 Well 1 (Vendor)03/04/2015 7.1 20 102 7.00 122 327 35 46.1 <50 <1 <5 12 <1 46.1 <100 <0.1 NA <0 1.39 <10 <1 <1 BC2 Well 1 (Vendor)08/27/2015 6.6 21 107 0.36 -62 143 2.6 41.5 <10 <0.5 <0.5 4.5 <0.2 41.5 <5 <0.08 NA <5 <1 <0.03 <0.5 <0.5 BC2 Well 2 (Duke)03/04/2015 NM NM NM NM NM NM NM NA 7 <1 <1 6 <1 NA <50 <1 11.1 NA 1.7 NA <5 <1 BC2 Well 2 (Vendor)03/04/2015 6.9 19 111 <0.1 -7 198 2.8 48.2 <50 <1 <5 <10 <1 48.2 <100 <0.1 NA <0 1.48 <10 <1 <1 BC2 Well 2 (Vendor)08/27/2015 6.7 20 105 0.14 -28 178 4.9 41.2 <10 <0.5 <0.5 9.4 <0.2 41.2 <5 <0.08 NA <5 <1 <0.03 <0.5 0.79 BC2 Well 3 (Vendor)08/27/2015 6.7 18 94 2.02 -36 169 14.1 30.4 <10 <0.5 <0.5 1.4 <0.2 30.4 <5 <0.08 NA <5 <1 <0.03 <0.5 <0.5 BC20 (Duke)08/10/2015 NM NM NM NM NM NM NM NA 7 <1 10.6 <5 <1 NA <50 <1 27.5 NA 2.1 NA <5 <1 BC20 (Vendor)08/10/2015 7.1 26 209 2.87 NM NM <1 94.9 <10 <0.5 10.8 3 <0.2 94.9 <5 <0.08 29 <5 2.2 <0.3 <0.5 <0.5 BC2000-RAW 07/18/2017 6.7 NM NM NM NM NM 3.4 68.1 <10 <0.5 0.44 18.7 <0.1 68.1 <25 <0.08 13.9 <5 2.1 <0.075 <0.5 <0.1 BC2004-RAW 07/18/2017 6.4 NM NM NM NM NM <1 11 <10 <0.5 0.66 20.1 0.11 11 <25 <0.08 1.5 <5 1.8 <0.025 <0.5 <0.1 BC2019-RAW 07/18/2017 6.9 NM NM NM NM NM 6.7 46.5 <10 <0.5 <0.1 10.6 <0.1 46.5 <25 <0.08 11 <5 1.8 0.65 <0.5 0.13 BC2021-RAW 06/27/2017 6.5 NM 145 NM NM NM 2.6 60 <10 <0.5 1.8 0.72 0.11 60 <25 <0.08 15.6 <5 5.7 <0.025 <0.5 0.1 BC2026-RAW 07/18/2017 6.7 NM NM NM NM NM <1 85.3 50 <0.5 3.5 5.3 <0.1 85.3 <25 <0.08 19.7 <5 1.2 0.2 <0.5 0.21 BC21 (Duke)02/23/2016 NM NM NM NM NM NM NM NA <5 <1 <1 11 <1 NA <50 <1 3.19 NA 4 NA <5 <1 BC21 (Vendor)02/23/2016 5.8 13 81 6.41 NM NM <1 22.8 <10 <0.5 <0.1 9.5 <0.1 22.8 <25 <0.08 3.5 <5 4.3 0.58 0.89 <0.1 BC23-1 (Duke)08/12/2015 NM NM NM NM NM NM NM NA 12 <1 <1 6 <1 NA <50 <1 4.7 NA 1.4 NA <5 <1 BC23-1 (Vendor)08/12/2015 6.5 22 62 7.58 NM NM <1 17.6 <10 <0.5 <0.5 5.8 <0.2 17.6 <5 <0.08 4.93 <5 1.6 2.1 2.5 <0.5 BC23-2 (Duke)08/12/2015 NM NM NM NM NM NM NM NA <5 <1 1.73 9 <1 NA <50 <1 23 NA 17 NA <5 <1 BC23-2 (Vendor)08/12/2015 6.4 19 215 6.28 NM NM <1 48.3 <10 <0.5 1.6 8.3 <0.2 48.3 <5 <0.08 22.4 <5 18.6 1.9 2.3 <0.5 BC23-3 (Duke)08/12/2015 NM NM NM NM NM NM NM NA <5 <1 <1 <5 <1 NA <50 <1 45.2 NA 13 NA <5 <1 BC23-3 (Vendor)08/12/2015 2.1 18 320 0.50 NM NM <1 123 <10 <0.5 0.69 1 <0.2 123 <5 <0.08 43.8 <5 14.1 <0.03 <0.5 <0.5 BC23-4 (Duke)08/12/2015 NM NM NM NM NM NM NM NA 8 <1 1.58 <5 <1 NA <50 <1 30.2 NA 7.8 NA <5 <1 BC23-4 (Vendor)08/12/2015 6.9 18 230 0.19 17 222 <1 81 <10 <0.5 1.5 1.2 0.22 81 <5 <0.08 NA <5 8.3 <0.03 <0.5 <0.5 BC23-5 (Duke)08/12/2015 NM NM NM NM NM NM NM NA 66 <1 <1 7 <1 NA <50 <1 14.1 NA 13 NA <5 4.06 BC23-5 (Vendor)08/12/2015 5.7 24 121 2.46 NM NM <1 29.4 <10 <0.5 <0.5 7.2 0.3 29.4 <5 <0.08 14.4 <5 14.6 <0.03 <0.5 4.3 BC24 (Duke)08/11/2015 NM NM NM NM NM NM NM NA 7 <1 12.4 13 <1 NA <50 <1 15.5 NA 3.6 NA <5 <1 BC24 (Vendor)08/11/2015 6.3 25 136 4.00 236 441 <1 54.2 <10 <0.5 12.1 12 <0.2 54.2 <5 0.098 NA <5 3.7 <0.03 <0.5 <0.5 BC25 (Duke)08/11/2015 NM NM NM NM NM NM NM NA 7 <1 <1 <5 <1 NA <50 <1 4.49 NA 3 NA <5 <1 Analytical Parameter Field Parameters Reporting Units 15A NCAC 02L Standard Analytical Results TABLE 4-3 PRIVATE WATER SUPPLY ANALYTICAL RESULTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 4-3 Private Water Supply Analytical Results Page 2 of 4 Copper Iron Lead Magnesium Manganese Mercury Molybdenum Nickel Potassium Selenium Sodium Strontium Sulfate Thallium Total Dissolved Solids Total Suspended Solids Vanadium Zinc ug/L ug/L ug/L mg/L ug/L ug/L ug/L ug/L mg/L ug/L mg/L ug/L mg/L ug/L mg/L mg/L ug/L ug/L 1000 300 15 NE 50 1 NE 100 NE 20 NE NE 250 0.2*500 NE 0.3*1000 Preliminary Background Threshold Values (Bedrock Unit)9.7 228 0.11 3.35 9.9 0.2 3.7 3.2 5.15 0.5 12 NE 9.6 0.1 133 NE 0.82 16 Sample ID Sample Collection Date BC1 (Duke)10/07/2015 9 358 3.34 3.13 206 <0.05 <1 <5 1.29 <1 8.29 185 12 <0.2 140 6 0.37 24 BC1 (Vendor)10/07/2015 7.3 261 2.8 2.98 NA <0.2 <0.5 2.1 1.18 <0.5 NA 165 12.2 <0.1 95 6.2 <1 21.1 BC10 (Duke)09/15/2015 23 61 <1 1.18 <5 <0.05 <1 <5 1.32 <1 4.8 35 0.29 <0.2 53 <5 <0.3 7 BC10 (Vendor)09/15/2015 23.3 56.8 0.53 1.09 NA <0.2 <0.5 0.85 1.3 <0.5 NA 33.6 <2 <0.1 42 <2.5 <1 6.7 BC-1000 10/13/2016 0.52 <50 <0.1 2.8 9.2 <0.2 0.88 <0.5 0.861 <0.5 6.62 95.1 9 <0.1 113 <2.5 <0.3 <5 BC-1001 10/13/2016 3.6 <50 0.25 2.95 0.74 <0.2 0.56 <0.5 1.13 <0.5 6.43 24.8 3 <0.1 69 <2.5 0.46 11.6 BC-1002 10/27/2016 84.2 <50 1.6 0.851 1.8 <0.2 <0.5 <0.5 1.3 <0.5 2.8 13.5 <2 <0.1 <25 <5 <0.3 38.1 BC-1003 10/27/2016 130 <50 1.2 1.45 <0.5 <0.2 <0.5 <0.5 1.32 <0.5 6.48 26.6 2.3 <0.1 57 <2.5 0.37 36.2 BC-1004 10/13/2016 58.2 <50 2.5 1.71 2.8 <0.2 <0.5 <0.5 1.42 <0.5 5.77 21.1 3.1 <0.1 50 <2.5 <0.3 26.6 BC-1005 10/13/2016 2.1 <50 0.17 2.93 65.1 <0.2 1.4 <0.5 1.24 <0.5 6.26 23.1 8.8 <0.1 79 <2.5 <0.3 7.5 BC-1006 10/13/2016 89.8 <50 1.8 0.963 6.1 <0.2 <0.5 0.6 1.6 <0.5 4.74 25.2 <2 <0.1 39 <2.5 0.68 122 BC-1007 04/26/2017 2.6 1810 0.91 3.34 17.6 <0.2 1.8 1.2 2.05 <0.5 7.81 52 9.9 <0.1 108 <2.8 <0.3 27.9 BC13 (Duke)08/06/2015 6 23 <1 7.28 <5 <0.05 2.34 <5 1.16 <1 9.57 88 8.3 <0.2 190 <5 4.22 6 BC13 (Vendor)08/06/2015 7.5 <50 0.35 8.06 NA <0.2 2.4 <0.5 1.24 0.58 NA 87.6 8.5 <0.1 180 <2.5 4.8 6.9 BC14 (Duke)08/06/2015 102 16 4.19 1.68 <5 <0.05 <1 <5 1.34 <1 5.6 22 2.5 <0.2 65 <5 <0.3 80 BC14 (Vendor)08/06/2015 107 <50 4.5 1.77 NA <0.2 <0.5 <0.5 1.37 <0.5 NA 21.6 3.2 <0.1 50 <2.5 <1 78.7 BC15 (Duke)08/10/2015 16 33 <1 1.37 9 <0.05 4.47 <5 1.9 <1 6.15 65 2.7 <0.2 90 <5 <0.3 66 BC15 (Vendor)08/10/2015 16.7 <50 0.81 1.43 NA <0.2 4.8 1.6 2.02 <0.5 NA 63.1 3.6 <0.1 91 <2.5 <1 66.9 BC17 (Duke)08/10/2015 7 <10 <1 5.17 <5 <0.05 3.34 <5 0.483 <1 11.2 195 7 <0.2 150 <5 <0.3 11 BC17 (Vendor)08/10/2015 7.2 <50 0.15 5.56 NA <0.2 3.5 <0.5 0.501 <0.5 NA 200 7.2 <0.1 150 <2.5 <1 13.2 BC18 (Duke)08/10/2015 19 <10 1.33 3.72 <5 <0.05 <1 <5 1.39 <1 6.11 47 0.78 <0.2 96 <5 0.842 148 BC18 (Vendor)08/10/2015 19.3 <50 1.4 3.88 NA <0.2 <0.5 <0.5 1.43 <0.5 NA 44.8 2 <0.1 88 <6.8 1 152 BC19 (Duke)08/11/2015 17 <10 <1 4.01 10 <0.05 1.3 <5 1.02 <1 8.17 96 5.7 <0.2 98 <5 <0.3 140 BC19 (Vendor)08/11/2015 15.5 <50 0.4 4.07 NA <0.2 1.2 <0.5 1.02 <0.5 NA 87.9 5.9 <0.1 117 <2.5 <1 126 BC2 Well 1 (Duke)03/04/2015 76 8020 5.8 3.06 16 <0.05 1.91 <5 1.84 <1 7.03 54 10 <0.2 100 13 0.38 64 BC2 Well 1 (Vendor)03/04/2015 58 8500 2 3 NA <0.2 2 <5 1.6 <5 NA 55 9.92 <0.1 105 5.2 0.4 48 BC2 Well 1 (Vendor)08/27/2015 2.8 1240 0.11 4.18 NA <0.2 <0.5 <0.5 2.14 <0.5 NA 44.1 9.3 <0.1 105 <2.5 <1 19.2 BC2 Well 2 (Duke)03/04/2015 <5 1920 <1 4.09 33 <0.05 <1 <5 2.01 <1 5.77 45 9.4 <0.2 110 <5 <0.3 24 BC2 Well 2 (Vendor)03/04/2015 <5 1700 <2 3.9 NA <0.2 <5 <5 1.8 <5 NA 46 9.07 <0.1 111 <1 <0.3 19 BC2 Well 2 (Vendor)08/27/2015 3.2 1070 0.12 3.25 NA <0.2 1.9 1.7 2.04 <0.5 NA 52.9 8.9 <0.1 97 <5 <1 16.2 BC2 Well 3 (Vendor)08/27/2015 <1 2310 0.34 2.23 NA <0.2 <0.5 <0.5 1.85 <0.5 NA 36.1 12 <0.1 80 <2.5 <1 <5 BC20 (Duke)08/10/2015 13 28 <1 3.72 <5 <0.05 19.4 <5 0.903 <1 8.79 98 8 <0.2 150 <5 <0.3 34 BC20 (Vendor)08/10/2015 12.8 <50 0.83 4.04 3.6 <0.2 20.2 <0.5 0.955 <0.5 9.26 94.2 8.1 <0.1 136 <5 <1 34.2 BC2000-RAW 07/18/2017 3.7 743 0.29 6.4 8.7 <0.2 10.6 <0.5 3.4 <0.5 7.9 32.5 9.2 <0.1 87 <2.5 <0.3 198 BC2004-RAW 07/18/2017 13.1 <50 0.7 1.3 7.5 <0.2 0.58 <0.5 1.7 <0.5 4.1 15.2 1.2 <0.1 48 <2.5 <0.3 11.7 BC2019-RAW 07/18/2017 1.2 2140 <0.1 3.2 16 <0.2 1.7 <0.5 2 <0.5 7.4 48.9 8.1 <0.1 96 <5 0.32 10 BC2021-RAW 06/27/2017 3.1 321 0.24 4.3 34.7 <0.2 <0.5 0.54 1.8 <0.5 7.4 67.6 9.7 <0.1 124 <2.5 <0.3 19.3 BC2026-RAW 07/18/2017 6.7 217 0.76 5.4 17.5 <0.2 1 <0.5 1.5 <0.5 6.5 45.9 2 <0.1 105 <2.5 1.6 5.9 BC21 (Duke)02/23/2016 22 11 1.38 2.9 <5 <0.05 <1 <5 1.54 <1 6.89 19 1 <0.2 71 <5 0.365 21 BC21 (Vendor)02/23/2016 22.2 <50 1.2 3.04 0.58 <0.2 <0.5 0.55 1.7 <0.5 7.47 18.3 <2 <0.1 64 <2.5 <0.5 25.1 BC23-1 (Duke)08/12/2015 15 11 <1 2.14 <5 <0.05 1.21 <5 1.43 <1 3.37 27 1 <0.2 52 <5 1.69 <5 BC23-1 (Vendor)08/12/2015 15.7 <50 0.54 2.15 <0.5 <0.2 1.1 <0.5 1.48 <0.5 3.4 25.2 3.2 <0.1 74 <2.5 1.7 <5 BC23-2 (Duke)08/12/2015 8 14 <1 6.92 <5 <0.05 <1 <5 3.19 <1 7.4 99 1.5 <0.2 150 <5 1.33 9 BC23-2 (Vendor)08/12/2015 7.3 <50 0.28 6.82 0.62 <0.2 0.76 <0.5 3.11 <0.5 7.08 87.7 3.5 <0.1 166 <2.5 1.3 8.8 BC23-3 (Duke)08/12/2015 <5 14 <1 6.58 159 <0.05 <1 <5 2.17 <1 10 133 16 <0.2 210 <5 <0.3 19 BC23-3 (Vendor)08/12/2015 2.6 <50 0.16 6.42 148 <0.2 <0.5 <0.5 2.17 <0.5 9.82 122 16.8 <0.1 223 <2.5 <1 18.3 BC23-4 (Duke)08/12/2015 <5 164 <1 4.21 150 <0.05 1.59 <5 2.61 <1 8.78 103 19 <0.2 150 <5 <0.3 19 BC23-4 (Vendor)08/12/2015 <1 155 <0.1 4.21 NA <0.2 1.4 0.5 2.6 <0.5 NA 92.7 20.2 <0.1 169 <2.5 <1 16.8 BC23-5 (Duke)08/12/2015 37 <10 1.12 5.51 26 <0.05 <1 15 2.69 <1 8.32 110 17 <0.2 120 <5 <0.3 77 BC23-5 (Vendor)08/12/2015 27.9 <50 0.99 5.45 23.8 <0.2 <0.5 15 2.8 <0.5 8.43 102 17.4 <0.1 122 <2.5 <1 65 BC24 (Duke)08/11/2015 39 10 <1 3.96 23 <0.05 1.98 <5 1.5 <1 7.65 60 3.6 <0.2 92 <5 0.383 279 BC24 (Vendor)08/11/2015 38.4 <50 0.67 4 NA <0.2 1.9 <0.5 1.51 <0.5 NA 55.1 4.2 <0.1 111 <2.5 <1 266 BC25 (Duke)08/11/2015 19 <10 <1 2.74 <5 <0.05 <1 <5 1.02 <1 6.05 25 2.8 <0.2 61 <5 0.396 144 Analytical Results Analytical Parameter Reporting Units 15A NCAC 02L Standard TABLE 4-3 PRIVATE WATER SUPPLY ANALYTICAL RESULTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 4-3 Private Water Supply Analytical Results Page 3 of 4 pH Temp Spec Cond DO ORP Eh Turbidity Alkalinity Aluminum Antimony Arsenic Barium Beryllium Bicarbonate Alkalinity Boron Cadmium Calcium Carbonate Alkalinity Chloride Chromiu m (VI)Chromium Cobalt S.U.Deg C umhos/cm mg/L mV mV NTUs mg/L ug/L ug/L ug/L ug/L ug/L mg/L ug/L ug/L mg/L mg/L mg/L ug/L ug/L ug/L 6.5-8.5 NE NE NE NE NE NE NE NE 1*10 700 4*NE 700 2 NE NE 250 10 10 1* Preliminary Background Threshold Values (Bedrock Unit)6.2-6.5 NE NE NE NE NE NE 81.3 100 0.5 0.51 6.2 0.2 77.6 50 0.08 10.3 81.3 3 0.33 5.3 0.76 Sample ID Sample Collection Date Analytical Parameter Field Parameters Reporting Units 15A NCAC 02L Standard Analytical Results BC25 (Vendor)08/11/2015 6.5 22 5 4.56 NM NM <1 23.2 <10 <0.5 <0.5 0.46 <0.2 23.2 <5 <0.08 4.67 <5 3.1 0.037 <0.5 <0.5 BC26 (Duke)09/15/2015 NM NM NM NM NM NM NM NA <5 <1 1.67 <5 <1 NA <50 <1 15.8 NA 3.9 NA <5 <1 BC26 (Vendor)09/15/2015 5.9 18 50 7.93 NM NM <1 66.1 <10 <0.5 1.9 0.5 <0.2 66.1 <5 0.18 16.9 <5 4 NA NA <0.5 BC28 (Duke)10/07/2015 NM NM NM NM NM NM NM NA 11 <1 3.03 <5 <1 NA <50 <1 12.4 NA 1.5 NA <5 <1 BC28 (Vendor)10/07/2015 3.6 16 200 0.05 NM NM <1 65.4 11.8 <0.5 2.8 <0.3 <0.2 65.4 12.2 <0.08 12.8 <5 <1 <0.03 <0.5 <0.5 BC29 (Duke)10/07/2015 NM NM NM NM NM NM NM NA 10 <1 <1 12 <1 NA <50 <1 6.02 NA 3.2 NA <5 <1 BC29 (Vendor)10/07/2015 6.2 17 98 4.62 NM NM <1 36.9 <10 <0.5 <0.5 10.3 <0.2 36.9 <5 <0.08 6.56 <5 3.4 0.16 <0.5 <0.5 BC30 (Duke)10/07/2015 NM NM NM NM NM NM NM NA 7 <1 114 <5 <1 NA <50 <1 37.1 NA 6.9 NA <5 <1 BC30 (Vendor)10/07/2015 7.1 17 269 1.52 NM NM <1 110 12.9 <0.5 108 2.2 <0.2 110 <5 <0.08 37.1 <5 7.5 <0.03 <0.5 <0.5 BC31 (Duke)10/07/2015 NM NM NM NM NM NM NM NA <5 <1 1.12 14 <1 NA <50 <1 33.8 NA 1.9 NA <5 <1 BC31 (Vendor)10/07/2015 7.4 16 242 1.15 NM NM <1 109 <10 <0.5 0.93 12.7 <0.2 109 <5 <0.08 36.7 <5 2.4 <0.03 <0.5 <0.5 BC32 (Duke)10/07/2015 NM NM NM NM NM NM NM NA <5 <1 23.7 <5 <1 NA <50 <1 31.7 NA 3.6 NA <5 <1 BC32 (Vendor)10/07/2015 8.0 17 230 0.10 NM NM <1 97.1 <10 <0.5 22.5 3.1 <0.2 97.1 <5 <0.08 31.7 <5 4.1 <0.03 <0.5 <0.5 BC33 (Duke)11/03/2015 NM NM NM NM NM NM NM NA 23 <1 1.97 17 <1 NA <50 <1 31.4 NA 2.5 NA 21 <1 BC33 (Vendor)11/03/2015 7.3 16 229 2.01 -98 107 1.7 98.4 <10 <0.5 1.9 7.7 <0.2 98.4 <5 <0.08 NA <5 2.8 <0.03 19.3 <0.5 BC34 (Duke)12/29/2015 NM NM NM NM NM NM NM NA <5 <1 42.9 45 <1 NA <50 <1 34.4 NA 8.1 NA <5 <1 BC34 (Vendor)12/29/2015 6.5 15 265 4.60 202 407 <1 98.1 <10 <0.5 40.3 37.7 <0.2 98.1 <5 <0.8 NA <5 8.3 <0.03 0.52 <0.5 BC35 (Duke)12/29/2015 NM NM NM NM NM NM NM NA 69 <1 16.7 <5 <1 NA <50 <1 30.2 NA 7.1 NA <5 <1 BC35 (Vendor)12/29/2015 7.1 14 245 2.58 151 356 2.1 92.4 49.1 <0.5 15.7 3.9 <0.2 92.4 <5 <0.08 NA <5 7.2 0.18 1.6 <0.5 BC4 Well A (Duke)02/18/2015 NM NM NM NM NM NM NM NA 8 <1 <1 7 <1 NA <50 <1 11.8 NA 1.5 NA <5 <1 BC4 Well A (Vendor)02/18/2015 6.9 11 130 7.45 NM NM <1 52 <50 <0.5 0.17 6.88 <0.5 NA <50 <0.15 NA NA 1 <5 0.99 0.03 BC4 Well A (Vendor)08/26/2015 7.3 24 146 3.89 143 348 <1 71.2 <10 <0.5 <0.5 3.6 <0.2 71.2 <5 <0.08 NA <5 1.6 0.085 <0.5 <0.5 BC4 Well B (Duke)02/18/2015 NM NM NM NM NM NM NM NA <5 <1 <1 <5 <1 NA <50 <1 10.5 NA 1.3 NA <5 <1 BC4 Well B (Vendor)02/18/2015 6.9 13 123 4.92 NM NM 19.3 37 <50 <0.5 <2 1.42 <0.5 NA <50 <0.15 NA NA <0.1 <5 1.61 <1 BC5 (Duke)12/29/2015 NM NM NM NM NM NM NM NA 18 <1 <1 22 <1 NA <50 <1 1.41 NA 2.4 NA <5 <1 BC5 (Vendor)12/29/2015 5.3 16 36 8.18 272 477 <1 8.9 14.9 <0.5 <0.5 19 <0.2 8.9 <5 <0.08 NA <5 2.7 <0.03 <0.5 <0.5 BC6 (Duke)03/04/2015 NM NM NM NM NM NM NM NA <5 <1 <1 <5 <1 NA <50 <1 11.1 NA 12 NA <5 <1 BC6 (Vendor)03/04/2015 6.1 19 125 5.40 255 460 3.6 32.8 <50 <1 <5 <10 <1 32.8 <100 <0.1 NA <0 11.3 <10 <1 <1 BC7 (Duke)03/04/2015 NM NM NM NM NM NM NM NA <5 <1 <1 <5 <1 NA <50 <1 29.4 NA 2.1 NA <5 <1 BC7 (Vendor)03/04/2015 8.0 20 171 <0.1 NM NM <1 84 <50 <1 <5 <10 <1 84 <100 <0.1 30 0 1.56 <10 <1 <1 BC8 (Duke)04/09/2015 NM NM NM NM NM NM NM NA <5 <1 <1 7 <1 NA <50 <1 4.56 NA 3.4 NA <5 <1 BC8 (Duke)09/15/2015 NM NM NM NM NM NM NM NA <5 <1 <1 7 <1 NA <50 <1 4.72 NA 3.5 NA <5 <1 BC8 (Vendor)04/09/2015 5.4 20 90 7.31 NM NM <1 28 NA 0.76 0.6 5.75 NA NA 22 NA NA NA 13.7 <5 0.91 0.11 BC8 (Vendor)08/25/2015 6.1 19 29 6.34 217 422 <1 25.2 <10 <0.5 0.77 6.1 <0.2 25.2 <5 <0.08 NA <5 3.2 0.06 <0.5 <0.5 BC8 (Vendor)09/15/2015 6.3 19 73 6.46 195 400 <1 26.9 <10 <0.5 0.77 6.6 <0.2 26.9 <5 <0.08 NA <5 3.5 0.06 0.91 <0.5 BC9 (Duke)03/05/2015 NM NM NM NM NM NM NM NA <5 <1 2.17 <5 <1 NA <50 <1 16 NA 5.7 NA <5 <1 BC9 (Vendor)03/05/2015 7.2 14 186 4.03 NM NM 2.96 58 <50 <3 <10 <10 <1 58 <100 <1 NA <1 4.75 <20 <10 <5 BC9 (Vendor)08/11/2015 6.5 22 136 2.23 117 322 1.2 50.5 <10 <0.5 1.8 0.74 <0.2 50.5 <5 <0.08 NA <5 6.3 <0.03 <0.5 <0.5 Notes:Prepared by: BER Checked by: ALA - Bold highlighted concentration indicates exceedance of the 15A NCAC 02L Standard, Appendix 2, April 1, 2013. * - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April, 1, 2013. < - concentration not detected at or above reporting limit ug/l - microgram per liter Deg C - Degree Celsius Temp - Temperature mg/l - milligrams per liter DO - Dissolved Oxygen NM - Not Measured umhos/cm - micro mhos per centimeter ORP - Oxidation Reduction Potential NA - Not Analyzed NTU - Nephelometric Turbidity Unit Spec Cond - Specific Conductance NE - Not Established S.U. - Standard Unit Eh - Redox Potential mg-N/L - miligram nitrogen per liter mV - millivolts DIS - Dissolved TOT - Total TABLE 4-3 PRIVATE WATER SUPPLY ANALYTICAL RESULTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 4-3 Private Water Supply Analytical Results Page 4 of 4 Copper Iron Lead Magnesium Manganese Mercury Molybdenum Nickel Potassium Selenium Sodium Strontium Sulfate Thallium Total Dissolved Solids Total Suspended Solids Vanadium Zinc ug/L ug/L ug/L mg/L ug/L ug/L ug/L ug/L mg/L ug/L mg/L ug/L mg/L ug/L mg/L mg/L ug/L ug/L 1000 300 15 NE 50 1 NE 100 NE 20 NE NE 250 0.2*500 NE 0.3*1000 Preliminary Background Threshold Values (Bedrock Unit)9.7 228 0.11 3.35 9.9 0.2 3.7 3.2 5.15 0.5 12 NE 9.6 0.1 133 NE 0.82 16 Sample ID Sample Collection Date Analytical Results Analytical Parameter Reporting Units 15A NCAC 02L Standard BC25 (Vendor)08/11/2015 18.8 <50 0.62 2.8 1.4 <0.2 0.68 <0.5 1.06 <0.5 6.07 23.3 3.5 <0.1 76 <2.5 <1 138 BC26 (Duke)09/15/2015 <5 16 <1 4.25 <5 <0.05 3.61 <5 0.746 <1 8.11 56 8.5 <0.2 100 <5 0.513 110 BC26 (Vendor)09/15/2015 4.9 <50 1.2 4.59 2.1 <0.2 4 NA 0.771 <0.5 8.97 56.4 8.2 <0.1 112 <2.5 <1 116 BC28 (Duke)10/07/2015 42 17 5.53 1.19 <5 <0.05 3.49 <5 0.104 <1 26.8 175 19 <0.2 120 <5 <0.3 30 BC28 (Vendor)10/07/2015 4.1 <50 0.69 1.1 2.2 <0.2 3.4 <0.5 0.096 <0.5 23.7 161 18.3 <0.1 99 <2.5 <1 7.5 BC29 (Duke)10/07/2015 14 17 <1 3.45 <5 <0.05 <1 <5 1.7 <1 6.9 23 1.3 <0.2 78 <5 0.557 10 BC29 (Vendor)10/07/2015 14 <50 0.81 3.25 <0.5 <0.2 <0.5 <0.5 1.63 <0.5 6.44 21.7 <2 <0.1 66 <5 <1 8.7 BC30 (Duke)10/07/2015 8 <10 <1 5.97 <5 <0.05 11.7 <5 0.991 2.22 8.76 76 8.7 <0.2 160 <5 0.468 29 BC30 (Vendor)10/07/2015 6.8 <50 0.14 5.53 0.7 <0.2 10.5 <0.5 0.906 1.8 7.94 64.6 8.7 <0.1 152 <2.5 <1 27.5 BC31 (Duke)10/07/2015 5 116 <1 4.98 132 <0.05 1.7 <5 1.98 <1 8.9 87 8.7 <0.2 160 <5 <0.3 13 BC31 (Vendor)10/07/2015 4.2 110 0.24 4.83 102 <0.2 1.3 <0.5 1.93 <0.5 8.84 79.2 8.6 <0.1 152 <2.5 <1 12.7 BC32 (Duke)10/07/2015 <5 13 <1 3.52 29 <0.05 7.21 <5 0.251 <1 10.2 238 9.4 <0.2 140 <5 <0.3 <5 BC32 (Vendor)10/07/2015 <1 <50 <0.1 3.31 23.8 <0.2 6.8 <0.5 0.228 <0.5 9.37 210 9.2 <0.1 127 <2.5 <1 <5 BC33 (Duke)11/03/2015 7 262 <1 5.25 79 <0.05 1.46 22 1.85 <1 7.9 94 11 <0.2 130 <5 <0.3 68 BC33 (Vendor)11/03/2015 <1 269 0.13 5.27 NA <0.2 1.9 2.2 1.81 <0.5 NA 85.2 9.1 <0.1 148 <2.5 <1 44.9 BC34 (Duke)12/29/2015 11 13 <1 5.2 <5 <0.05 4.89 <5 2.27 <1 9.79 110 6.2 <0.2 180 <5 0.748 28 BC34 (Vendor)12/29/2015 10.4 <50 0.54 4.62 NA <0.2 4.5 <0.5 2.18 <0.5 NA 94.4 6.1 <0.1 156 <5 <1 24.8 BC35 (Duke)12/29/2015 9 447 4.29 7.07 332 <0.05 3.15 <5 2.45 <1 7.32 52 15 <0.2 160 5 0.489 75 BC35 (Vendor)12/29/2015 8 365 3.8 6.24 NA <0.2 2.1 1.3 2.34 <0.5 NA 44.7 14.2 <0.1 143 4.1 <1 62.7 BC4 Well A (Duke)02/18/2015 5 18 <1 3.95 <5 <0.05 2.78 <5 1.35 <1 7.55 41 3.9 <0.2 91 <5 2.22 26 BC4 Well A (Vendor)02/18/2015 3.62 <25 0.48 3.76 NA <0.2 2.98 0.29 1.28 0.35 NA 43 5 <0.5 112 <2.5 2 26.6 BC4 Well A (Vendor)08/26/2015 13.6 <50 1.4 5.73 NA <0.2 4.1 <0.5 1.53 <0.5 NA 44.8 4.8 <0.1 102 <2.5 2.4 26.5 BC4 Well B (Duke)02/18/2015 <5 1900 <1 2.22 12 <0.05 <1 <5 1.7 <1 5.86 36 11 <0.2 88 <5 <0.3 <5 BC4 Well B (Vendor)02/18/2015 0.19 1890 0.1 2.05 NA <0.2 0.58 0.34 1.54 <2 NA 37 14 <0.5 80 <2.5 0.58 3.15 BC5 (Duke)12/29/2015 33 17 <1 1.21 <5 <0.05 <1 <5 1.44 <1 2.5 19 0.6 <0.2 52 <5 <0.3 21 BC5 (Vendor)12/29/2015 32.3 <50 0.41 1.08 NA <0.2 <0.5 <0.5 1.42 <0.5 NA 16.9 <2 <0.1 <25 <2.5 <1 20.8 BC6 (Duke)03/04/2015 7 354 <1 2.36 43 <0.05 <1 <5 2.21 <1 9.52 65 10 <0.2 110 <5 <0.3 14 BC6 (Vendor)03/04/2015 <5 290 <2 2.4 NA <0.2 <5 <5 2 <5 NA 69 9.25 <0.1 101 <1 <0.3 9 BC7 (Duke)03/04/2015 <5 <10 <1 2.69 9 <0.05 <1 <5 0.789 <1 6.22 94 9.3 <0.2 130 <5 <0.3 <5 BC7 (Vendor)03/04/2015 <5 <50 <2 2.6 7 <0.2 <5 <5 0.72 <5 6.5 99 9.07 <0.1 124 <1 <0.3 <5 BC8 (Duke)04/09/2015 25 <10 <1 1.74 <5 <0.05 <1 <5 1.14 <1 7.8 51 2.5 <0.2 80 <5 0.451 16 BC8 (Duke)09/15/2015 12 <10 <1 1.8 <5 <0.05 <1 <5 1.13 <1 7.62 53 2.3 <0.2 75 <5 0.489 8 BC8 (Vendor)04/09/2015 22.8 15.2 0.82 1.59 NA <0.2 1.14 0.38 1.05 0.22 NA 49 <5 NA 66 3 23.5 14.7 BC8 (Vendor)08/25/2015 16 <50 1.1 1.83 NA <0.2 1.1 <0.5 1.19 <0.5 NA 51.9 3 <0.1 64 <2.5 <1 8.2 BC8 (Vendor)09/15/2015 12.6 <50 0.67 1.89 NA <0.2 1 <0.5 1.16 <0.5 NA 53.8 3.1 <0.1 71 <2.5 <1 7.9 BC9 (Duke)03/05/2015 9 374 1.99 4.1 37 <0.05 <1 <5 1.71 <1 6.89 72 9.3 <0.2 120 <5 <0.3 11 BC9 (Vendor)03/05/2015 9.15 140 2.28 4.6 NA <0.2 <10 <10 1.83 <10 NA 74.5 <10 <1 92 <5 <5 5.29 BC9 (Vendor)08/11/2015 5.8 322 0.6 4.49 NA <0.2 <0.5 0.76 1.88 <0.5 NA 73.2 9.8 <0.1 119 <2.5 <1 94.9 Notes:Prepared by: BER Checked by: ALA - Bold highlighted concentration indicates exceedance of the 15A NCAC 02L Standard, Appendix 2, April 1, 2013. * - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April, 1, 2013. < - concentration not detected at or above reporting limit ug/l - microgram per liter Deg C - Degree Celsius Temp - Temperature mg/l - milligrams per liter DO - Dissolved Oxygen NM - Not Measured umhos/cm - micro mhos per centimeter ORP - Oxidation Reduction Potential NA - Not Analyzed NTU - Nephelometric Turbidity Unit Spec Cond - Specific Conductance NE - Not Established S.U. - Standard Unit Eh - Redox Potential mg-N/L - miligram nitrogen per liter mV - millivolts DIS - Dissolved TOT - Total TABLE 4-4 PIEDMONT GROUNDWATER BACKGROUND THRESHOLD VALUES BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC and DUKE ENERGY PROGRESS, LLC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 4-4 Piedmont Groundwater Background Threshold Values Page 1 of 1 Allen Belews Creek Cliffside Marshall Mayo Riverbend Shallow Deep†Bedrock†Alluvium†Saprolite Transition Zone Bedrock Shallow Deep†Bedrock†Shallow Deep Bedrock Surficial Bedrock Shallow Deep†Bedrock†Shallow†Deep Bedrock†Shallow Deep†Bedrock†Surficial† Transition Zone Bedrock Shallow Deep†Bedrock†Transition Zone Bedrock pH*S.U.6.5-8.5 5.2 - 7.5 6.7 - 8.4 7.5 - 7.8 4.6 - 5.1 4.3 - 5.8 3.9 - 7.0 4.1 - 8.1 5.1 - 6.0 5.2 - 7.0 6.3 - 6.5 4.5 - 6.4 5.9 - 8.4 5.8 - 7.8 5.8 - 6.4 5.5 - 8.2 4.4 - 6.1 4.8 - 6.1 5.4 - 7.4 4.0 - 7.1 5.3 - 6.8 6.7 - 8.4 4.8 - 6.1 5.8 - 7.9 5.9 - 7.1 4.9 - 6.5 5.7 - 6.5 5.0 - 7.3 4.9 - 7.0 5.4 - 8.2 7.6 - 7.8 6.3 - 7.6 6.8 - 8.3 Alkalinity mg/L NE 189 74 83.4 10.9 14.2 14.8 70.4 22.9 63.7 81.3 117 80 72 206 237 13.7 19.7 53 77.7 168 236 29.7 238 108 13 302 223 82.1 139 139 244 317 Aluminum µg/L NE 427 540 301 73 602 346 199 860 140 100 273 404 240 323 118 253 290 208 118 113 100†926 190 463 566 490 494 178 122 100 807 378 Antimony µg/L 1∆0.9 0.7 0.5 1 1 1 1 1 1 0.5 1 1 1 1 1 1 1 1 0.5 0.5 0.5 1 0.5 1 1 1 1 1 1.1 2.9 1 1 Arsenic µg/L 10 0.42 1.4 0.4 1 1 1 1 1 1 0.51 1 1 1 3 6 1 1.3 1 0.5 1.62 0.833 0.219 1.5 1 1 1 1 1 1 2.9 1 1 Barium µg/L 700 125 52.4 21 59 143 41 41.2 58 12.6 6.2 44 19 91 183 471 73 23 19.3 19 80.4 128 148 45.5 66.9 19 78.3 97 42.1 84.4 135 91 185 Beryllium µg/L 4∆0.127 0.2 0.1 1 1 1 1 0.362 0.219 0.2 0.1 1 0.2 1 1 0.188 0.2 1 0.429 0.0772 0.0525 0.374 0.0759 1 1 1 1 0.144 1 0.1 1 1 Bicarbonate mg/L NE 189 74 83.4 10.9 14.2 14.8 70.4 22.3 62.9 77.6 92 84 72 206 235 14.4 18.1 68.8 77.7 168 233 30.8 238 108 13 302 223 82.1 147 139 244 317 Boron µg/L 700 50 50 50 50 50 50 50 50 50 50 50 50 50 177 50 50 50 50 50 50 50.9 50 50 50 50 50 50 50 50.0 50 50 50 Cadmium µg/L 2 0.08 0.08 0.08 1 1 1 1 1 1 0.08 1 1 1 1 1 1 1 1 0.08 0.08 0.08 0.08 0.08 1 1 1 1 0.08 0.1 0.08 1 1 Calcium mg/L NE 20 14.2 20.4 2.67 10.6 3.97 24.2 3.69 13.2 10.3 13 14 13 82.6 62.6 3.22 11 16 19.4 59 59.1 6.05 62 13.7 2.89 59.2 73.3 18.8 32.9 46.7 106 102 Carbonate mg/L NE 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 Chloride mg/L 250 10.9 6 1.6 15 14 6.7 6.5 15 20.9 3 8 4 5 250 220 7.7 5.1 8.66 7.3 6.8 7.1 4.3 5.19 2.7 3.3 33.3 43 3.34 10.7 16 150 120 Chromium (VI)µg/L 10 7.7 1.2 0.23 0.42 1.31 0.261 0.423 1.75 0.411 0.33 2.4 0.5†1.3 0.12 0.03 0.452 0.16 0.12 0.5 1.24 0.15†1.74 1.48 4.82 0.088 1.26 0.4 1.0 1.2†0.16 16.1 0.19 Chromium µg/L 10 6.93 6.8 5.6 5 5 1.32 1.3 4.72 3.3 5.3 5 5 4 1 1 3.97 1.79 3.57 1.26 3.42 8.31 4.82 2.55 5 3.23 6 7 5 5 1.5 18.1 3.61 Cobalt µg/L 1∆4.3 0.5 0.27 4.29 5.65 4.61 1 0.509 1.6 0.76 8 0.3 0.3 89 1 10.7 9.04 1.5 2.4 0.85 1 3.7 2.4 3.80 1.02 1 1.14 14.2 0.547 0.088 1 6.4 Copper µg/L 1000 2.3 1.7 1.2 5 5 2.08 1 2.7 5 9.7 4 5 5 4 1 6.57 9.45 5 2.67 2.29 13 3.13 3.78 5 1.9 5 5 5 5 0.5 10 1 Iron µg/L 300 835 555 284 598 1050 1785 1246 750 240 228 647 500 147 37500 910 765 560 6220 152 2130 1400 818 337 676 385 1319 2550 593 56.3 125 1173 4268 Lead µg/L 15 0.17 0.1 0.1 1 1 1 1 1 1 0.11 1 1 1 1 1 1 1 1 0.1 0.13 1.4 0.650 0.348 1 1 1 1 0.151 0 0.1 1 1 Magnesium mg/L NE 5.6 4.6 4.8 3.06 8.7 3.31 3.38 3.41 6.94 3.35 9 6 8 32.5 30.8 2.48 1.6 2.33 12.2 15.9 20.7 1.52 8.72 13.6 0.753 13.5 13.1 3.49 6.81 7.46 42.3 31.5 Manganese µg/L 50 578 60.4 39.1 363 725 380 105 27.9 55 9.9 198 7 7 9170 901 169 78.3 89.4 81.2 522 38.8 82 187 310 253 298 519 478 7.9 24.5 405 1198 Mercury µg/L 1 0.2 2.4 0.2 0.1 0.3 0.2 0.05 0.2 0.2 0.2 0.05 0.05 0.05 0.05 0.05 0.2 0.2 0.2 0.2 0.2 0.2 0.05 0.2 0.05 0.2 0.2 0.05 0.5 0.2 0.2 0.05 0.05 Methane µg/L NE 11.4 38.9 10 230 10 10 10 2.65 2.64 10 10 10†10 10 25 10 3.15 10 10 10 233†10 10 16.4 12 2256 10 29.5 6.41†41.7 10 367 Molybdenum µg/L NE 0.85 30 4.7 1 1 1 3.7 1 1.3 3.7 1 2†5.9 1 12 1 1 1.72 0.5 0.927 1.4 0.684 9 4.26 3.15 1 11.0 2.1 7.3 10 4.17 35.2 Nickel µg/L 100 4.02 8.1 3.4 5 10 9.83 1.77 4.26 4.67 3.2 7 5 5 78 2 6.26 12.6 5 2.88 3.65 19.2 5.94 7.33 5 3.03 5 5 5 5 0.87 5.22 2.11 Nitrate + Nitrite mg-N/L NE 1.8 0.94 0.41 0.113 2.8 0.872 0.422 3.63 4.19 0.17 0.4 2†0.9 2 2 8.84 2.8 0.92 0.53 0.349 0.074 1.6 0.895 0.381 0.798 0.295 1.06 0.23 0.15†0.02 3.4 0.295 Potassium mg/L NE 5.24 9.89 6.06 1.55 1.61 1.87 4.79 5 5 5.15 5 7 7 1.61 2.49 5 5 5 5 5 5 5 4.45 8.19 3.78 3.61 6.56 5 5 4.57 4.69 9.28 Selenium µg/L 20 0.5 0.5 0.5 1 1.88 1 1 0.5 0.5 0.5 1 1 1 1 2 1 1 1 0.5 0.5 0.5 0.5 0.5 1 1 1 1 0.5 1.3 0.5 1.78 1 Sodium mg/L NE 15.2 28.3 7.71 6.18 4.06 4.20 9.01 5.92 10.7 12 8 13 9.8 190 72.5 6.14 4.41 7.42 17.3 17.8 19.2 9.75 39.9 14 5.49 53.3 73.3 12.6 17 23.7 36 37.6 Strontium µg/L NE 286 200 106 28 44 37.7 88 56.5 68.5 100 108 146 98.5 994 806 36.7 56.1 107 211 481 2120 261 548 195 25 391 418 254 697 961 760 232 Sulfate mg/L 250 3.64 16.2 2.9 4.6 50 5.47 5.6 1.93 6.35 9.6 3 7 2 510 96 1.17 10 15.1 36.7 36.7 11.3 1.9 50.3 14.4 1.6 7.5 18 1.2 21.9 29 37 73.5 Sulfide mg/L NE 0.1 0.12 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1†0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.10 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1†2 0.1 0.1 TDS mg/L 500 181 126 147 56 105 72.8 132 84.8 148 133 212 130 145 1200 675 75.5 71 120 187 244 284 79.8 221 177 85 430 340 50 179 223 540 530 Thallium µg/L 0.2∆0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.2 0.2 0.2 0.2 0.2 0.117 0.063 0.2 0.1 0.1 0.1 0.2 0.1 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.2 0.2 TOC mg/L NE 18 11 5.6 0.72 0.708 0.595 1.1 1 1 10.2 1.1 1†1.6†6.3 1.3 1 1 1 1†1†1†1 4†1†2 1.8 1.24 1† 1†1 2.72 3.6 Vanadium µg/L 0.3∆5.3 9.6 10.8 0.3 0.625 0.41 0.632 1.36 1.45 0.82 7.69 8.42 14.1 1 2 1.06 1.1 0.37 0.413 0.645 2.52 4.50 4.37 22.9 0.974 5.88 5.67 2.02 12.00 0.33 30.2 2.49 Zinc µg/L 1000 80 17.3 15.3 22 45.4 27.6 5 10 43.2 16 26 10 17 62 5 15 15 10 46.3 10 16†15.9 31.1 10 227 12 37.4 15 10 10 12 7 Radium (Total)pCi/L NE 1.39 0.613 1.1 4.17 6.83 6.61†6.55 8.74 1.1 0.466 1.61 0.609†1.56†3.60 3.46 2.58†1.51†3.1†1.45 1.38 1.63†0.47†NA 1.9 4 9†7.6 0.825† ---0.494 5.45 5.21 Uranium (Total)µg/mL NE 0.002 0.0005 0.0004 0.00035 0.00035 0.000402†0.000454 0.0005 0.0005 0.0005 0.0005 0.0005†0.0005†0.0167 0.00196 0.0005 0.0005 0.0005 0.005 0.00106 0.002†0.0005 NA 0.0005 0.000367 0.001†0.00203 0.0005† 0.864†0.001 0.00516 0.00324 Notes:Prepared By: HHS Checked By: ALA * - Upper and lower tolerance limits calculated for parameter NE - Not Established ∆ - Interim Maximum Allowable Concentrations (IMACs) of 15A NCAC .02L Standard, Appendix 1, April 1, 2013 pCi/L - picocuries per liter µg/L - micrograms per liter Radium (Total) - Radium-226 and Radium-228 combined µg/mL - micrograms per milliliter S.U. - Standard Unit † - Provisional; dataset contains less than 10 valid samples Shallow background wells: BG-1S, BG-2S, BG-4S, GWA-19S, GWA-21S, GWA-23S, and GWA-26S mg/L - milligrams per liter TDS - Total Dissolved Solids Bedrock background wells: BG-4BR and GWA-21BR (no valid sample collected from well; NCDEQ lists as background)Uranium (Total) - Uranium-233, Uranium-234, Uranium-236, and Uranium-238 combined Deep background wells: BG-2D and GWA-26D Dan River RoxboroCape Fear Parameter Reporting Unit NCAC 02L Standard Asheville Buck Table 6-1. Soil Mineralogy Results Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Belews Creek Steam Station Page 1 of 2 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-10D Technology of Materials BC-10 44-49 80 -3 -2 5 -1 1 -10 -- GWA-11D 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)[AlSi3O8], Plagioclase – Na[AlSi3O8]-Ca[Al2Si2O8], Vermiculite – (Mg,Ca)0.7(Mg,Fe+3,Al)6[(Al,Si)8O20](OH)4•8H2O, Illite – K1-1.5Al4[Si7-6.5Al1-1.5O20](OH)4, Kaolinite – Al4[ Smectite – (½Ca,Na)0.7(Al,Mg,Fe)4[(Si,Al)8O20](OH)4•nH2O, Chlorite – (Mg,Al,Fe)12[(Si,Al)8O20](OH)16, Muscovite – K2Al4[Si6Al2O20](OH,F)4, Phlogopite – K2(Mg,Fe+2)6[Si6Al2O20](OH,F)4, Lizardite – Mg3(Si2O5)(OH)4, Epidote – Ca2Fe+3Al2O•OH•Si2O7•SiO4, Ilmenite – FeTi 4. ft bgs = feet below ground surface Unique Lab IdentifierLab Performing AnalysisBoring ID Soil Mineralogical Composition (wt %)Sample Depth (ft bgs) Table 6-1. Soil Mineralogy Results Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Belews Creek Steam Station Page 2 of 2 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-10D Technology of Materials BC-10 44-49 GWA-11D 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 AB-6GTB PMET BC-25 28 AB-4D PMET BC-26 75-75.5 AB-5D PMET BC-27 57-59 GWA-16D PMET BC-28 45-46.5 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 – Smectite – (½Ca,Na)0.7(Al,Mg,Fe)4[(Si,Al)8O20](OH)4•nH2O, Chlorite – (Mg,Al,Fe)12[(Si,Al)8O20](O 4. ft bgs = feet below ground surface Unique Lab IdentifierLab Performing AnalysisBoring ID Sample Depth (ft bgs) Lizardite Epidote Vermiculite Ilmenite Goethite Amorphous ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ -3.3 -0.5 -14.9 -0.7 --1.6 20.4 0.7 7.3 ---13.9 -4.7 ---19.1 -1.9 0.6 0.3 -24.9 Si4O10](OH)8, Biotite – K2(Mg,Fe+2)6-4(Fe+3,Al,Ti)0-2[Si6-5Al2-3O20](OH,F)4, iO3, Goethite – α-FeO•OH Table 6-2. Soil Chemistry Results, Oxides Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Belews Creek Steam Station Page 1 of 1 Al2O3 BaO CaO Cr2O3 Fe2O3 K2O MgO MnO Na2O P2O5 SiO2 SrO TiO2 V2O5 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-11D 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 Oxide Composition, Loss on Ignition, Carbon, and Sulfur (wt. %)Boring ID Lab Performing Analysis Unique Lab Identifier Sample Depth (ft bgs) Table 6-3. Soil Chemistry Results, Elemental Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Belews Creek Steam Station Page 1 of 1 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 BG-2D 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-11D Technology of Materials BC-11 42'35 --37 42 142 --<10 52 39 --104 96 <20 127 11 162 - AB-9D 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-3D 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 - AB-2SA Technology of Materials BC-18 64'<20 --24 21 66 --<10 25 25 --58 75 <20 86 10 71 - GWA-5D 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-8D 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 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 Boring ID Unique Lab Identifier Lab Performing Analysis Sample Depth (ft bgs)Elemental Composition (ppm) TABLE 6-4 SOLID MATRIX PARAMETERS AND ANALYTICAL METHODS FOR SOIL, ASH, AND ROCK PARAMETERS AND CONSTITUENT ANALYSIS - ANALYTICAL METHODS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC INORGANIC COMPOUNDS UNITS METHOD Aluminum mg/kg EPA 6010C Antimony mg/kg EPA 6020A Arsenic mg/kg EPA 6020A Barium mg/kg EPA 6010C Beryllium mg/kg EPA 6020A Boron mg/kg EPA 6010C Cadmium mg/kg EPA 6020A Calcium mg/kg EPA 6010C Chloride mg/kg EPA 9056A Chromium mg/kg EPA 6010C Cobalt mg/kg EPA 6020A Copper mg/kg EPA 6010C Iron mg/kg EPA 6010C Lead mg/kg EPA 6020A Magnesium mg/kg EPA 6010C Manganese mg/kg EPA 6010C Mercury mg/kg EPA 7471B Molybdenum mg/kg EPA 6010C Nickel mg/kg EPA 6010C Nitrate as Nitrogen mg/kg EPA 9056A pH SU EPA 9045D Potassium mg/kg EPA 6010C Selenium mg/kg EPA 6020A Sodium mg/kg EPA 6010C Strontium mg/kg EPA 6010C Sulfate mg/kg EPA 9056A Thallium (low level) (SPLP Extract only)mg/kg EPA 6020A Total Organic Carbon mg/kg EPA 9060 Vanadium mg/kg EPA 6020A Zinc mg/kg EPA 6010C Sediment Specific Samples Cation exchange capacity meg/100g LDNR 29-B Particle size distribution % Percent solids % Percent organic matter %EPA/600/R-02/069 Redox potential mV Faulkner et al. 1898; HACH Method 10228 Notes: 1. Soil samples to be analyzed for Total Inorganics using USEPA Methods 6010/6020 and pH using USEPA Method 9045, as noted above. meq/100g - millequivalents per 100 grams mg/kg - Milligrams per kilogram mV - Millivolts S.U. - Standard Unit Prepared by: RBI Checked by: SRW/TCP 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. Analytical methods and reporting limits as presented were applicable at time of CSA field implementation in 2015. Analytical methods and reporting limits are updated periodically and applied as appropriate. P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 6-4 Solid Matrix Parameters and Analytical Methods for Soil, Ash, and Rock Parameters.xlsx Page 1 of 1 TABLE 6-5 ASH BASIN SURFACE WATER, POREWATER AND SEEP PARAMETERS AND ANALYTICAL METHODS BELEWS CREEK STEAM STATION DUKE ENERGY PROGRESS, LLC, BELEWS CREEK, NC PARAMETER RL UNITS METHOD pH NA SU Field Water Quality Meter Specific Conductance NA µS/cm Field Water Quality Meter Temperature NA ºC 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 Aluminum 0.005 mg/L EPA 200.7 or 6010C Antimony 0.001 mg/L EPA 200.8 or 6020B Arsenic 0.001 mg/L EPA 200.8 or 6020A Barium 0.005 mg/L EPA 200.7 or 6010C Beryllium 0.001 mg/L EPA 200.8 or 6020A Boron 0.05 mg/L EPA 200.7 or 6010C Cadmium 0.001 mg/L EPA 200.8 or 6020A Chromium 0.001 mg/L EPA 200.8 or 6010C Cobalt 0.001 mg/L EPA 200.8 or 6020A Copper 0.001 mg/L EPA 200.8 or 6020B Iron 0.01 mg/L EPA 200.7 or 6010C Lead 0.001 mg/L EPA 200.8 or 6020A Manganese 0.005 mg/L EPA 200.7 or 6010C Mercury (low level)0.5 ng/L 1631 ONLY Molybdenum 0.001 mg/L EPA 200.8 or 6020B Nickel 0.001 mg/L EPA 200.8 or 6020B Selenium 0.001 mg/L EPA 200.8 or 6020A Strontium 0.005 mg/L EPA 200.7 or 6010C Thallium (low level)0.0002 mg/L EPA 200.8 or 6020A Vanadium (low level)0.0003 mg/L EPA 200.8 or 6020A Zinc 0.005 mg/L EPA 200.7 or 6010C Radium 226 1 pCi/L EPA 903.1 Modified Radium 228 1 pCi/L EPA 904.0/SW846 9320 Modified Uranium (233, 234, 236, 238)Varies by Isotope ug/mL SW846 3010A/6020A Alkalinity (as CaCO3)5 mg/L SM 2320B Bicarbonate 5 mg/L SM 2320 Calcium 0.01 mg/L EPA 200.7 Carbonate 5 mg/L SM 2320 Chloride 0.1 mg/L EPA 300.0 or 9056A Magnesium 0.005 mg/L EPA 200.7 Methane 0.01 mg/L RSK 175 Nitrate as Nitrogen 0.01 mg-N/L EPA 353.2 Potassium 0.1 mg/L EPA 200.7 Sodium 0.05 mg/L EPA 200.7 Sulfate 0.1 mg/L EPA 300.0 or 9056A Sulfide 0.1 mg/L SM4500S2-D Total Dissolved Solids 25 mg/L SM 2540C Total Organic Carbon 0.1 mg/L SM 5310C/EPA9060A Total Suspended Solids 2.5 mg/L SM 2450D Arsenic Speciation Vendor Specific mg/L IC-ICP-CRC-MS Iron Speciation Vendor Specific mg/L IC-ICP-CRC-MS Manganese Speciation Vendor Specific mg/L IC-ICP-CRC-MS Prepared by: RBI Checked by: SRW/TCP Notes: ºC - Degrees Celsius µS/cm = micro-Siemens per centimeter mg/L - Milligrams per liter mg - N/L - Milligrams nitrogen per liter mV - Millivolts NA - Not analyzed NTU - Nephelometric turbidity unit pCi/L - picocuries per liter RL = reporting limit S.U. - Standard Unit ug/mL - micrograms per milliliter Analytical methods and reporting limits as presented were applicable at time of CSA field implementation in 2015. Analytical methods and reporting limits are updated periodically and applied as appropriate. INORGANICS FIELD PARAMETERS ADDITIONAL GROUNDWATER CONSTITUENTS 1. Select constituents will be analyzed for total and dissolved concentrations. ANIONS/CATIONS RADIONUCLIDES P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 6-5 Groundwater, Surface Water, and Seep Parameters and Analytical Methods_BCSS.xlsx Page 1 of 1 Table 6.6. Transition Zone Mineralogy Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Belews Creek Steam Station Page 1 of 1 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 – SiO2, Feldspar – (K,Na)[AlSi3O8]-Ca[Al2Si2O8], Illite – K1-1.5Al4[Si7-6.5Al1-1.5O20](OH)4, Kaolinite – Al4[Si4O10](OH)8, Biotite – K2(Mg,Fe+2)6-4(Fe+3,Al,Ti)0-2[Si6-5Al2-3O20](OH,F)4, Calcite – CaCO3, Dolomite – CaMg(Co3)2 2. ft bgs = feet below ground surface Sample Depth (ft bgs)Unique Lab IdentifierLab Performing AnalysisBoring ID Mineralogical Composition (wt %) Table 6-7 . Oxide Composition of Transition Zone Samples Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Belews Creek Steam Station Page 1 of 1 Al2O3 BaO CaO Cr2O3 Fe2O3 K2O MgO MnO Na2O P2O5 SiO2 SrO TiO2 V2O5 GWA-2D 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-5D 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 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 Oxide Composition (wt. %)Sample Depth (ft bgs) Unique Lab Identifier Lab Performing Analysis Boring ID Table 6-8. Elemental Composition of Transition Zone Samples Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Belews Creek Steam Station Page 1 of 1 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: 1. ft bgs = feet below ground surface 2. ppm = parts per million Elemental Composition (ppm)Sample Depth (ft bgs)Unique Lab IdentifierLab Performing AnalysisBoring ID Table 6-9. Whole Rock Chemistry Results, Oxides Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Belews Creek Steam Station Page 1 of 1 Unique Lab Sample Depth Identifier (ft bgs)Al 2O3 BaO CaO Cr2O3 Fe2O3 K2O MgO MnO Na2O P2O5 SiO2 SrO TiO2 V2O5 LOI C S GWA-5BR American Assay BC-30 81.5-81.7 16.7 0.03 6.7 0.02 5.6 1.9 1.4 0.10 1.5 0.05 69.0 0.03 0.4 0.02 1.32 0.148 0.103 AB-4BR 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 0.01 1.35 0.061 0.033 AB-8D 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-3D 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 0.02 1.85 0.013 <0.005 GWA-2D 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 0.03 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: 1. ft bgs = feet below ground surface Boring ID Lab Performing Analysis Oxide Composition, Loss on Ignition, Carbon, and Sulfur (wt. %) Table 6-10. Whole Rock Chemistry Results, Elemental Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Belews Creek Steam Station Page 1 of 1 Lab Performing Unique Lab Sample Depth Analysis Identifier (ft bgs)As Cd Ce Co Cu Ga La Mo Ni Pb Sb Se Sn W Zn Zr GWA-5BR 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-4BR American Assay BC-31 130.75-131 2 <0.2 105 6 8 17 24 3 6 14 1 <1 4 <1 22 9 AB-8D 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 Boring ID Elemental Composition (ppm) Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Table 6-11. Petrographic Analysis Summary 1Percent Mineralogy estimated using Comparison Charts for Estimating Percentage Composition. All estimates are approximate. 2tr - Trace Amounts. 3Light Colored Bands 4Dark Colored Bands Boring ID Petrography By Sample ID Sample Depth 1 Mineral Percentage by Rock Type Quartz Plagioclase Orthoclase Muscovite Biotite Chlorite Garnet Epidote Serici Hematite Staurolite Kyanite Magnetite Pyrite GW A-5BR HDR BC-GW A-5BR2-13 81.1' TO 81.5' 4 45 - - 6 - - 3 t - 3 - - 3 Mica Gneiss GW A-5BR HDR BC-GW A-5BR2-14 81.1' TO 81.5' 8 4 - - 4 - - 5 - - 3 5 - 3 AB-4BR HDR BC-AB-4BR-1 130.4' TO 130.75' 4 40 - tr 4 6 - 3 t - 5 2 - t Mica Gneiss AB-8D-1 HDR BC-AB-8D-1 69.9' TO 70.4' 3 - - 40 2 2 2 - - 1 - - 5 - Mica Schist BG-3D HDR BC-BG-3D-1 67.7' TO 68.0' 4 - 35 10 1 3 - tr - 2 - - tr - Mica Gneiss GW A-2D HDR BC-GW A-2D-1 68.9' TO 69.4' 3 0 - 55 t r 5 5 - - - - - 5 - Garnet Mica Schist MW -202BR HDR BC-MW -202BR-1 102.9' TO 103.3' 6 2 10 15 - 2 1 tr - 1 - - 4 - Mica Gneiss Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. PETROGRAPHIC DESCRIPTION Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Site: Belews Creek Steam Station Location: Stokes County, North Carolina Sample #: BC-AB-4BR-1 Rock Core Description: Mica Gneiss. Very light gray to light gray, fine-grained, very hard, thinly banded. Small, >1 mm, feldspar augen. Sample cut by K- feldspar filled vein. Project No.: 392 246397 001 Depth: 130.4' TO 130.75' Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Microscopic Description (one thin-section): Granoblastic to lepidioblastice texture. Quartz crystals and plagioclase crystals, the larger occurring as augen in the surrounding matrix are generally aligned parallel to banding as are chlorite, biotite, and muscovite. Minor amounts of epidote, pyrite; kyanite and staurolite metacrysts are present with the crystals generally parallel to the banding. Section cut by fracture healed with andularia. Quartz - ~40%, undulatory extinction. Plagioclase - ~40%, saussuritized as indicated by epidote and sericite along twin planes. Minor albite present within the plagioclase crystals. Muscovite - Trace Biotite - ~4%, altering to chlorite. Chlorite - ~6%, altered from biotite. Epidote - ~3%. Pyrite - Trace. Staurolite - ~5%, pale yellow, with inclusions of quartz. Kyanite - ~2%, as blades parallel to banding. Sericite - Trace. Adularia - As fracture filling, fine-grained, probably orthoclase, found in low-temperature veins. Rock Type: Mica Gneiss Origin: Upper amphibolite grade metamorphism (regional) of an originally psammitic (sedimentary) rock. By: Date: M. F. Schaeffer, LG January 18, 2016 Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. PETROGRAPHIC DESCRIPTION Site: Belews Creek Steam Station Location: Stokes County, North Carolina Sample #: BC-AB-8D-1 Rock Core Description: Mica Schist, very light gray to light gray, medium- to coarse-grained, hard to very hard with schistosity parallel to laminations consisting of fine-grained quartz. Garnets to 2 mm diameter. Minor Fe-oxide stain on select foliation planes. Project No.: 392 246397 001 Depth: 69.9' to 70.4' Microscopic Description (two thin-sections): Lepidoblastic texture. Schistosity defined by coarse books of muscovite and finer-grained bioite separated by fine- grained, aligned quartz crystals with sutured contacts and undulatory extinction. Muscovite is kinked, bent, and folded with elongate magnetite parallel to cleavage. Muscovite wraps around the garnets. The larger garnets have a poikiloblastic (sieve) testure with inclusions of quartz, magnetite, and muscovite. A number of garnets are elongate in the plane of schistosity. Muscovite - ~40%, In coarse books and layers that define schistosity. Bent, kinked, and folded. Biotite - ~20%, pale brown with small crystals parallel to schistosity, associated with hematite. Quartz - ~30%, long-axis parallel to schistosity, undulatory extinction, sutured grain contacts. Garnet - ~2%, almandine. Chlorite - ~2%, fine-grained, parallel to schistosity, altered from biotite. Magnetite - ~5%, as elongate grains in muscovite books and as inclusions in garnets. Hematite - ~1%, red, translucent, occurs along biotite-rich layers and on the rim of garnets. Rock Type: Mica Schist Origin: Upper amphibolite grade metamorphism (regional) of an originally pelitic (sedimentary) rock. By: Date: M. F. Schaeffer, LG January 13, 2016 Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. PETROGRAPHIC DESCRIPTION Site: Belews Creek Steam Station Location: Stokes County, North Carolina Sample #: BC-BG-3D-1 Rock Core Description: Mica Gneiss, very light gray to light gray, fine-grained, hard to very hard with alternating quartzo-feldspathic rich and mica rich bands. Project No.: 392 246397 001 Depth: 67.7' TO 68.0' Microscopic Description (one thin-section): Primarily granoblastic texture with zones of lepidoblastic texture defined by stretched out and sutured quartz grain contacts related to localized high strain during deformation and metamorphism. The granoblastic quartz and orthoclase bands are cut by anastomosing shear bands consisting of muscovite with lesser biotite (altering to chlorite), hematite, and minor epidote. Muscovite and biotite are present in the granoblastic quartz/orthoclase parallel to the banding in the section. Muscovite - ~10%, crystals parallel to banding and in sheared areas. Biotite - ~10%, pale brown with small crystals parallel to banding, and in sheared areas associated with hematite. Quartz - ~40%, undulatory extinction, sutured grain contacts in zones of high strain. Orthoclase - ~35%. Chlorite - ~3%, fine-grained, parallel to schistosity, altered from biotite. Magnetite - Trace. Hematite - ~2%, red, translucent, occurs along biotite-rich layers and on the rim of garnets. Epidote - Trace. Rock Type: Mica Gneiss Origin: Upper amphibolite grade metamorphism (regional) of an originally psammitic (sedimentary) rock. By: Date: M. F. Schaeffer, LG January 14, 2016 Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. PETROGRAPHIC DESCRIPTION Site: Belews Creek Steam Station Location: Stokes County, North Carolina Sample #: BC-GWA-2D-1 Rock Core Description: Garnet Mica Schist, very light gray to light gray, medium- to coarse- grained, hard to very hard with schistosity parallel laminations consisting of fine-grained quartz. Garnets up to 10 mm diameter. Project No.: 392 246397 001 Depth: 68.9' TO 69.4' Microscopic Description (one thin-section): Lepidoblastic texture. Schistosity defined by coarse books of muscovite and finer-grained chlorite separated by fine- grained, aligned quartz crystals with sutured contacts and undulatory extinction. Muscovite is kinked, bent, and folded with elongate magnetite parallel to cleavage. Muscovite wraps around the garnets. Most garnets, but especially the larger ones, have a poikioblastic (sieve) testure with inclusions of quartz, magnetite, and muscovite. Muscovite - ~55%, In coarse books and layers that define schistosity. Bent, kinked, and folded. Quartz - ~30%, long-axis parallel to schistosity, undulatory extinction, sutured grain contacts. Garnet - ~5%, almandine. Chlorite - ~5%, fine-grained, parallel to schistosity, in places altered from biotite. Magnetite - ~5%, as elongate grains in muscovite books and as inclusions in garnets. Biotite - Trace. Rock Type: Garnet Mica Schist Origin: Upper amphibolite grade metamorphism (regional) of an originally pelitic (sedimentary) rock. By: Date: M. F. Schaeffer, LG January 13, 2016 Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. PETROGRAPHIC DESCRIPTION Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Site: Belews Creek Steam Station Location: Stokes County, North Carolina Sample #: BC-GWA-5BR2-1 Rock Core Description: Mica Gneiss. Light gray to medium light gray, fine- grained, banded with quartzo-feldspathic layers and darker biotite-rich layers. Project No.: 392 246397 001 Depth: 81.1' TO 81.5' Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Microscopic Description (one thin-section): Light colored bands have granoblastic texture and the dark colored bands have lepidoblastic texture defined by biotite. The granoblastic bands consist of quartz and plagioclase with a general alignment of the crystals parallel to banding with minor amounts of biotite, epidote, pyrite, and staurolite metacryst. The lepidoblastic bands consist primarily of biotite and metacrysts of staurolite, with lesser amounts of muscovite, plagioclase, kyanite, epidote, and pyrite. Light Colored Bands: Quartz - ~40%, undulatory extinction. Plagioclase - ~45%, saussuritized as indicated by epidote and sericite along twin planes. Minor albite present within the plagioclase crystals. Biotite - ~6% Epidote - ~3%. Pyrite - ~3% Staurolite - ~3%, pale yellow, with inclusions of quartz. Sericite - Trace. Dark Colored Bands: Quartz - ~8%, undulatory extinction. Plagioclase - ~4%, saussuritized as indicated by epidote and sericite along twin planes. Minor albite present within the plagioclase crystals. Biotite - ~40% Epidote - ~5%. Pyrite - ~3% Staurolite - ~35%, pale yellow, with inclusions of quartz. Kyanite - ~5%. Bladed crystals. Sericite - Trace. Rock Type: Mica Gneiss Origin: Upper amphibolite grade metamorphism (regional) of an originally psammitic with pelitic interlayered sedimentary rock. By: Date: M. F. Schaeffer, LG January 14, 2016 Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. PETROGRAPHIC DESCRIPTION Site: Belews Creek Steam Station Location: Stokes County, North Carolina Sample #: BC-MW-202BR-1 Rock Core Description: Mica Gneiss, very light gray to light gray, fine-grained, hard to very hard with very fine alternating quartzo-feldspathic rich and mica rich bands. Project No.: 392 246397 001 Depth: 102.9' To 103.3' Microscopic Description (two thin-sections): Granoblastic texture with zones of lepidoblastic texture defined by stretched out and sutured quartz grain contacts related to localized high strain during deformation and metamorphism. The granoblastic quartz and orthoclase bands are cut by anastomosing shear bands of coarse to fine muscovite, chlorite, hematite, and minor epidote. Muscovite is present in the granoblastic quartz/orthoclase parallel to the banding in the section. Muscovite - ~15%, crystals bent, kinked, and folded. Quartz - ~65%, undulatory extinction, sutured grain contacts in zones of high strain. Orthoclase - ~10%. Plagioclase - ~2%, sassuritized as indicated by epidote and sericite along twin planes. Minor albite present within the plagioclase crystals. Chlorite - ~2%, fine-grained, parallel to schistosity, altered from biotite. Magnetite - ~4%. Hematite - ~1%, red, translucent, occurs along biotite-rich layers and on the rim of garnets. Epidote - Trace. Garnet - ~1%, almandine. Rock Type: Mica Gneiss Origin: Upper amphibolite grade metamorphism (regional) of an originally psammitic (sedimentary) rock. By: Date: M. F. Schaeffer, LG January 14, 2016 TABLE 6-12 HISTORIC AND RECENT WATER LEVEL MEASUREMENTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 6-12 Historic and Recent Water Level MeasurementTable 6-12 Historic and Recent Water Level Measurement Page 1 of 1 Well ID Round 1 Sweep (7/7/2015) Groundwater Elevation (ft) Round 2 Sweep (9/28/2015) Groundwater Elevation (ft) Round 6 Sweep (5/9/16) Groundwater Elevation (ft) Round 7 Sweep (9/20/16) Groundwater Elevation (ft) Round 9 Sweep (1/25/17) Groundwater Elevation (ft ) Round 10 Sweep (4/3/17) Groundwater Elevation (ft) AB-1BR ------------------97.312 102.312 Bedrock AB-1D 736.47 733.57 733.77 734.44 734.22 734.1 76.00 81.00 Deep AB-1S 734.51 723.59 731.72 732.57 732.31 732.08 37.93 52.93 Shallow AB-2D 734.04 730.98 731.19 732.02 732.55 733.52 135.13 140.13 Deep AB-2S 744.1 740.69 741.84 742.31 742.98 742.63 34.25 49.25 Shallow AB-3D 725.7 722.91 723.91 723.93 724.89 724.58 113.71 118.71 Deep AB-3S 733.93 734.18 734.27 734.57 735.21 734.83 38.70 53.70 Shallow AB-4BR 757.79 755.19 754.88 754.72 755.06 755.13 140.25 145.25 Bedrock AB-4BRD ------------------160.972 165.972 Bedrock AB-4D 757.89 755.18 754.83 754.67 755 755.11 92.46 97.46 Deep AB-4S 758.25 755.3 754.87 754.68 755.15 755.4 5.82 20.82 Ash Pore Water AB-4SL 758.15 755.19 754.76 754.60 754.96 755.14 54.40 64.40 Ash Pore Water AB-5D 758.69 755.69 755.34 755.51 755.51 755.39 100.19 105.19 Deep AB-5S 758.87 755.78 755.39 755.48 755.66 755.76 6.04 21.04 Ash Pore Water AB-5SL 759.49 755.97 755.65 755.73 755.84 756.03 36.84 46.84 Ash Pore Water AB-6D 761.65 758.73 758.42 759.07 758.41 758.56 88.11 93.11 Deep AB-6S 763.57 760.12 759.46 761.10 759.01 759.83 5.09 15.09 Ash Pore Water AB-6SL 763.5 759.99 759.38 761.03 758.86 759.74 16.42 21.42 Ash Pore Water AB-7D 763.53 759.63 759.49 759.95 758.98 759.59 87.42 92.42 Deep AB-7S 762.13 758.64 758.84 758.84 759.2 759.48 8.18 18.18 Ash Pore Water AB-8D 760.18 757.23 757.37 756.45 757.3 757.42 75.28 80.28 Deep AB-8S 760.12 757.49 757.56 756.59 757.7 757.72 6.94 21.94 Ash Pore Water AB-8SL 760.26 757.32 757.15 756.68 757.34 757.54 40.25 50.25 Ash Pore Water AB-9BR 760.58 757.85 758.94 757.02 758.42 758.23 133.00 138.00 Bedrock AB-9BRD ------------758.7 758.59 191.00 196.00 Bedrock AB-9D 761.27 758.5 759.53 757.44 758.78 758.54 93.15 98.15 Deep AB-9S 765.87 762.68 760.75 758.06 759.61 759.36 16.41 31.41 Shallow BG-1D 760.39 757.47 763.75 761.72 759.89 below pump 49.85 54.85 Deep BG-1S DRY 764.07 764.03 763.96 763.94 763.94 29.67 44.87 Shallow BG-2BR 767.04 763.84 ---767.56 766.52 766.03 83.04 88.04 Bedrock BG-2BRA ------------------98.00 103.00 Bedrock BG-2D 766.1 763.2 766.23 766.96 765.91 765.51 72.18 77.18 Deep BG-2S 764.17 761.48 764.15 769.89 764.14 763.78 42.08 57.08 Shallow BG-3D 815.87 812.2 816.32 816.46 815.62 814.2 64.89 69.89 Deep BG-3S 814.98 810.72 815.04 814.57 813.7 812.43 28.18 43.18 Shallow GWA-10D 741.7 738.58 743.16 740.31 741.7 741.01 52.50 57.50 Deep GWA-10DA ------------------64.50 69.50 Deep GWA-10S 742.57 740.11 744.13 741.57 743.25 742.29 6.33 21.33 Shallow GWA-11D 725.58 721.79 727.49 725.36 724.08 723.65 65.43 70.43 Deep GWA-11S 728.26 725.02 732.11 729.20 727.31 727 25.54 40.54 Shallow GWA-12BR 744.46 770.89 773.09 774.49 773.7 773.12 109.11 114.11 Bedrock GWA-12D 783.47 780.06 780.86 782.02 781.97 781.72 66.12 71.12 Deep GWA-12S 784.36 779.81 780.74 781.78 781.7 781.41 43.14 58.14 Shallow GWA-16BR ---744.62 727.43 746.05 746.322 746.172 101.635 106.635 Bedrock GWA-16D 750.24 745.47 747.76 747.63 748.19 748.02 60.87 65.87 Deep GWA-16DA ------------------52.00 57.00 Deep GWA-16S 750.97 748.05 750.28 748.98 750.59 750.25 31.90 46.90 Shallow GWA-17D 750.16 747.28 750.67 749.37 750.08 749.9 52.30 57.30 Deep GWA-17S 750.73 748.09 750.71 749.79 750.63 750.43 27.54 42.54 Shallow GWA-18D ------748.97 747.38 748.837 748.527 59.198 64.198 Deep GWA-18S ------------------11.00 26.00 Shallow GWA-18SA ------------------14.263 29.263 Shallow GWA-19BR ------------717.63 717.12 79.40 84.40 Bedrock GWA-19D ------------------41.051 46.051 Deep GWA-19S ------734.53 732.63 734.018 733.398 4.00 19.00 Shallow GWA-19SA ------------------7.265 22.265 Shallow GWA-1BR -------------27.33 -27.86 110.00 120.00 Bedrock GWA-1D 716.57 713.91 723.03 716.42 717.67 716.87 60.13 65.13 Deep GWA-1S 718.12 715.35 723.37 719.77 ---711.03 21.36 36.36 Shallow GWA-20BR ------------747.02 746.6 84.42 89.42 Bedrock GWA-20D ------747.12 745.85 747.034 747.444 58.28 63.28 Deep GWA-20S ---------746.60 ------7.00 22.00 Shallow GWA-20SA ------------------10.245 25.245 Shallow GWA-21D ------719.99 718.05 717.871 717.281 27.72 32.72 Deep GWA-21S ------720.86 719.48 719.309 718.919 9.129 19.129 Shallow GWA-22D ------------------32.50 37.50 Deep GWA-22S ------------------NM NM Shallow GWA-23D ------786.64 787.68 787.782 787.822 56.605 61.605 Deep GWA-23S ------786.57 785.06 785.147 785.187 24.4 39.4 Shallow GWA-24BR ------------615.94 615.68 59.00 69.00 Bedrock GWA-24D ------626.49 627.00 628.12 627.52 16.097 21.097 Deep GWA-24S ------------------7.922 12.922 Shallow GWA-25BR ------------------98.275 103.275 Bedrock GWA-26BR ------------------86.13 91.13 Bedrock GWA-26D ------------------65.80 70.80 Deep GWA-26S ------------------36.29 51.29 Shallow GWA-27BR ------------------110.86 115.86 Bedrock GWA-27D ------------------40.57 45.57 Deep GWA-27S ------------------9.64 24.64 Shallow GWA-2D 748.15 745.24 746.83 747.53 748.3 748.02 60.93 65.93 Deep GWA-2S 748.78 745.76 747.53 748.26 748.57 748.69 37.08 52.08 Shallow GWA-30D ------------717.93 717.88 33.00 38.00 Deep GWA-30S ------------717.83 717.82 10.00 25.00 Shallow GWA-31D ------------705.41 705.07 55.00 60.00 Deep GWA-31S ------------700.49 700.08 5.00 20.00 Shallow GWA-32D ------------686.62 680.89 74.00 79.00 Deep GWA-32S ------------687.86 687.79 14.00 29.00 Shallow GWA-3D 728.84 725.76 727.70 727.39 727.5 727.5 47.82 52.82 Deep GWA-3S 728.71 725.71 727.64 727.39 727.45 727.48 29.63 44.63 Shallow GWA-4D 755.88 748.88 753.85 754.39 ------67.25 72.25 Deep GWA-5BR2 761.07 757.71 758.77 759.07 ------83.08 88.08 Bedrock GWA-5D 763.2 759.37 760.68 760.99 ------54.63 59.63 Deep GWA-5S 763.68 760.15 761.42 761.86 ------26.16 41.16 Shallow GWA-6D 755.81 753.39 755.56 754.31 753.58 753.5 103.32 108.32 Deep GWA-6S 763.12 760.24 762.52 760.99 759.68 759.58 30.42 45.42 Shallow GWA-7D 788.04 784.9 787.97 787.09 785.62 785.57 81.31 86.31 Deep GWA-7S 789.29 785.75 789.15 788.20 786.54 786.53 30.00 45.00 Shallow GWA-8D 804.49 799.59 802.09 801.90 800.69 800.49 91.54 96.54 Deep GWA-8S 806.88 802.66 805.86 805.39 804.11 803.86 23.74 38.74 Shallow GWA-9BR ------------------118.76 123.76 Bedrock GWA-9D 752.85 749.57 750.97 749.95 750.06 749.93 86.03 91.03 Deep GWA-9S 754.1 751.07 752.69 751.89 751.69 751.75 39.22 54.22 Shallow MW-1 ------------------35.06 45.06 Shallow MW-101D ------------------35.44 40.44 Deep MW-101S ------------------11.44 21.44 Shallow MW-102D ------------------24.55 29.55 Deep MW-102S 645.51 ---------------9.51 17.51 Shallow MW-103D 679.14 676.09 ---677.04 678.35 678 25.36 32.36 Deep84 MW-103S 679.99 676.89 ---677.53 678.69 678.53 11.27 16.27 Shallow MW-104BR ---------------757.94 144.00 149.00 Bedrock MW-104D 759.26 756.18 758.66 758.32 below pump below pump 80.53 85.53 Deep MW-104S 759.2 756.1 ---758.41 below pump below pump 38.19 48.19 Shallow MW-1D ------------------82.37 87.37 Bedrock MW-2 ------------------37.39 47.39 Shallow MW-200BR Flowing Artesian Flowing Artesian Flowing Artesian Flowing Artesian Flowing Artesian Flowing Artesian 47.77 52.77 Bedrock MW-200D 632.09 629.78 ------------17.25 22.25 Deep MW-200S 631.73 630.86 ------------7.87 15.47 Shallow MW-201BR 750.64 748.13 750.15 748.46 749.655 749.345 100.395 105.395 Bedrock MW-201D ------------------36.86 46.86 Deep MW-202BR 744.31 740.56 746.13 744.77 742.67 742.4 100.76 105.76 Bedrock MW-202D 744.39 740.72 746.06 744.82 below pump below pump 89.31 94.31 Deep MW-202S 743.31 740.06 744.67 743.61 below pump below pump 47.37 62.37 Shallow MW-203BR 754.9 ---753.39 751.91 752.74 752.27 97.17 102.17 Bedrock MW-203D 754.45 ---------------89.06 94.06 Deep MW-203S 754.92 ---------------30.19 45.19 Shallow MW-204D 750.68 746.78 ------------38.93 43.93 Deep MW-204S 750.69 747.89 ------------21.74 36.74 Shallow MW2-7 ------------------13.43 28.43 Shallow MW2-9 ------------------1.98 11.98 Shallow MW-3 ------793.11 800.93 below pump below pump 39.24 49.24 Shallow MW-4 ------------------28.72 38.72 Shallow MW-5 ------------------48.82 58.82 Shallow MW-6 ------------------24.33 34.33 Shallow MW-7 ------------------1.21 11.21 Shallow OB-4 ------------------12.15 27.15 Shallow OB-5 ------------------18.80 33.80 Shallow OB-9 ------------------36.69 46.09 Deep Notes:Prepared by: LWD Checked by: ALA ----No measurement taken Screened Interval (Feet, BTOC)Monitoring Zone Water Level (Feet, MSL) TABLE 6-13 HORIZONTAL GROUNDWATER GRADIENTS AND VELOCITIES BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\Draft Final PDF 10_20_2017\Tables\Table 6-13 Horizontal Groundwater Gradients and Velocities- Belews.xlsx Page 1 of 1 Ash Fill M1 M2 TZ N AB-7S to AB-5S 0.004 17.19 40.67 4.38 2.15 - N GWA-16S to GWA-11S 0.010 50.71 120.03 12.91 6.33 NW GWA-8S to GWA-30S 0.014 68.10 161.17 17.34 8.50 NW AB-9S to GWA-11S 0.006 31.22 73.88 7.95 3.90 - N AB-8D to GWA-24D 0.025 31.28 15.34 41.34 N GWA-9D to GWA-11D 0.004 -4.73 2.32 6.25 NW AB-9D to AB-5D 0.002 -2.88 1.41 3.80 NW AB-9D to GWA-10D 0.006 7.83 3.84 10.34 NW GWA-7D to AB-6D 0.013 -16.74 8.21 22.12 NW AB-9BR to AB-4BR 0.002 ----- S GWA-12BR to MW-202BR 0.035 ----- Prepared by: ALA Checked by: MAF Notes: ft - feet yr - year 1. Water level measurements used for these calculations were collected on April 3, 2017 2. Hydraulic conductivities and effective porosities for layers Ash, Fill taken from HDR 2015 CSA Report, and M1 and M2 taken from CSA Supp 2 in situ slug test results 3. Effective porosity for TZ taken from HDR 2017 Updated Groundwater Model Report Bedrock Deep Shallow Direction Data Points Gradient (ft per ft) Velocity (ft per yr) TABLE 6-14 VERTICAL HYDRAULIC GRADIENTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 6-14 Vertical GradientsTable 6-14 Vertical Gradients Page 1 of 1 Well ID Potential Vertical Gradient Direction AB-1S to AB-1D -0.0612 Upward AB-2S to AB-2D 0.0949 Downward AB-3S to AB-3D 0.1462 Downward AB-4S to AB-4D 0.0036 Downward AB-5S to AB-5D 0.0042 Downward AB-5SL to AB-5D 0.0106 Downward AB-6S to AB-6D 0.0157 Downward AB-6SL to AB-6D 0.0164 Downward AB-7S to AB-7D -0.0014 Upward AB-8S to AB-8D 0.0048 Downward AB-8SL to AB-8D 0.0037 Downward AB-9S to AB-9D 0.0114 Downward BG-2S to BG-2D -0.0698 Upward BG-3S to BG-3D -0.0541 Upward GWA-10S to GWA-10D 0.0314 Downward GWA-11S to GWA-11D 0.0960 Downward GWA-12S to GWA-12D -0.0187 Upward GWA-16S to GWA-16D 0.0935 Downward GWA-17S to GWA-17D 0.0265 Downward GWA-1S to GWA-1D 0.0517 Downward GWA-21S to GWA-21D 0.1004 Downward GWA-23S to GWA-23D -0.0977 Upward GWA-2S to GWA-2D 0.0354 Downward GWA-30S to GWA-30D -0.0033 Upward GWA-31S to GWA-31D -0.1800 Upward GWA-32S to GWA-32D 0.1234 Downward GWA-3S to GWA-3D -0.0016 Upward GWA-6S to GWA-6D 0.0894 Downward GWA-7S to GWA-7D 0.0207 Downward GWA-8S to GWA-8D 0.0529 Downward GWA-8S to GWA-8D 0.0438 Downward MW-103S to MW-103D 0.0357 Downward AB-4D to AB-4BR -0.0004 Upward AB-9D to AB-9BR 0.0078 Downward AB-9D to AB-9BRD -0.0005 Upward BG-2D to BG-2BR -0.0500 Upward GWA-12D to GWA-12BR 0.1968 Downward GWA-16D to GWA-16BR 0.0444 Downward GWA-19S to GWA-19BR 0.2382 Downward GWA-20D to GWA-20BR 0.1908 Downward GWA-24D to GWA-24BR 0.2436 Downward Prepared by: ALA Checked by: WJW Shallow to Deep Deep to Bedrock Table 6-15. Hydrostratigraphic Layer Properties - Horizontal Hydraulic Conductivity Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Belews Creek Steam Station Page 1 of 1 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 1.1E-03 3.5E-05 2.1E-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 9.1E-05 1.1E-03 7.8E-06 9.6E-05 5.2E-07 3.1E-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 Table 6-16. Hydrostratigraphic Layer Properties - Vertical Hydraulic Conductivity Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Belews Creek Steam Station Page 1 of 1 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 6.1E-04 Fill 8 3.1E-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 6.1E-05 1.4E-06 2.4E-05 M2 10 4.3E-05 2.1E-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. TABLE 6-17 IN-SITU HYDRAULIC CONDUCTIVITY RESULTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 6-17 In-Situ Hydraulic ConductivitiesTable 6-17 In-Situ Hydraulic Conductivities Page 1 of 3 Measured Geometric Mean Measured Geometric Mean GWA-18S Slug-Out (Rising Head)Test 1 2.08E-04 --0.5910 -- GWA-19S Slug-Out (Rising Head)Test 1 1.02E-04 --0.2902 -- GWA-19SA Slug-Out (Rising Head)Test 1 1.22E-04 --0.3464 -- Slug -In (Falling Head)Test 1 3.99E-04 1.1310 Slug-Out (Rising Head)Test 2 4.11E-04 1.1650 GWA-21S Slug-Out (Rising Head)Test 2.72E-03 --7.7010 -- GWA-22S Slug-Out (Rising Head)Test 1 1.48E-04 1.07E-04 0.4193 -- GWA-23S Slug-Out (Rising Head)Test 1 7.73E-05 7.73E-05 0.2191 -- GWA-26S Slug-Out (Rising Head)Test 1 1.10E-03 --3.1150 -- GWA-27S Slug-Out (Rising Head)Test 1 1.16E-04 --0.3300 -- 2.65E-04 7.51E-01 2.72E-03 7.70E+00 7.73E-05 2.19E-01 GWA-20SA Shallow 1.15E+004.05E-04 Well ID Hydraulic Conductivity Result (ft/day) Hydraulic Conductivity (cm/sec)Slug Test Type Slug Test Number GEOMETRIC MEAN HIGHEST CONDUCTIVITY LOWEST CONDUCTIVITY TABLE 6-17 IN-SITU HYDRAULIC CONDUCTIVITY RESULTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 6-17 In-Situ Hydraulic ConductivitiesTable 6-17 In-Situ Hydraulic Conductivities Page 2 of 3 Measured Geometric Mean Measured Geometric Mean Slug -In (Falling Head)Test 1 1.91E-05 0.0542 Slug-Out (Rising Head)Test 2 6.70E-07 0.0019 Slug -In (Falling Head)Test 1 1.31E-06 0.0037 Slug-Out (Rising Head)Test 2 1.62E-06 0.0046 Slug -In (Falling Head)Test 1 3.88E-04 1.1010 Slug-Out (Rising Head)Test 2 4.21E-04 1.1930 Slug -In (Falling Head)Test 1 2.42E-04 0.6849 Slug-Out (Rising Head)Test 2 2.60E-04 0.7375 Slug -In (Falling Head)Test 1 2.16E-05 0.0613 Slug-Out (Rising Head)Test 2 7.27E-06 0.0206 Slug -In (Falling Head)Test 1 1.24E-04 0.3527 Slug-Out (Rising Head)Test 2 1.19E-04 0.3370 Slug -In (Falling Head)Test 1 9.43E-05 0.2672 Slug-Out (Rising Head)Test 2 5.99E-05 0.1698 Slug -In (Falling Head)Test 1 7.48E-03 21.2000 Slug-Out (Rising Head)Test 2 1.12E-02 31.7900 Slug -In (Falling Head)Test 1 2.31E-04 0.6552 Slug-Out (Rising Head)Test 2 2.09E-04 0.5934 7.91E-05 2.24E-01 1.12E-02 3.18E+01 6.70E-07 1.90E-03 GWA-19D GWA-18D Deep Well ID Slug Test Type Slug Test Number Hydraulic Conductivity (cm/sec) Hydraulic Conductivity Result (ft/day) 3.58E-06 3.45E-01 2.13E-01 1.01E-02 4.04E-04 1.46E-06 GWA-20D GWA-21D GWA-22D GWA-23D GWA-24D 2.60E+01GWA-26D GWA-27D 6.24E-012.20E-04 4.13E-03 1.15E+00 7.11E-01 9.16E-03 7.51E-05 1.22E-04 1.25E-05 2.51E-04 3.55E-02 GEOMETRIC MEAN HIGHEST CONDUCTIVITY LOWEST CONDUCTIVITY TABLE 6-17 IN-SITU HYDRAULIC CONDUCTIVITY RESULTS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 6-17 In-Situ Hydraulic ConductivitiesTable 6-17 In-Situ Hydraulic Conductivities Page 3 of 3 Measured Geometric Mean Measured Geometric Mean Slug -In (Falling Head)Test 1 7.49E-04 2.1230 Slug-Out (Rising Head)Test 2 6.48E-04 1.8380 Slug -In (Falling Head)Test 1 1.77E-04 1.46E-04 0.5020 Slug-Out (Rising Head)Test 2 1.20E-04 1.20E-04 0.3407 Slug -In (Falling Head)Test 1 8.96E-04 1.08E-04 2.5390 Slug-Out (Rising Head)Test 2 1.29E-05 1.29E-05 0.0366 Slug -In (Falling Head)Test 1 4.94E-07 0.0014 Slug-Out (Rising Head)Test 2 2.82E-07 0.0008 Slug -In (Falling Head)Test 1 2.47E-06 0.0070 Slug-Out (Rising Head)Test 2 4.30E-06 0.0122 Slug -In (Falling Head)Test 1 9.53E-06 0.0270 Slug-Out (Rising Head)Test 2 1.38E-06 0.0039 Slug -In (Falling Head)Test 1 4.13E-05 0.1172 Slug-Out (Rising Head)Test 2 4.21E-05 0.1193 Slug -In (Falling Head)Test 1 2.71E-05 2.21E-05 0.0767 Slug-Out (Rising Head)Test 2 1.80E-05 1.80E-05 0.0510 Slug -In (Falling Head)Test 1 2.40E-04 2.10E-04 0.6816 Slug-Out (Rising Head)Test 2 1.84E-04 1.84E-04 0.5207 2.76E-05 7.83E-02 8.96E-04 2.54E+00 2.82E-07 8.00E-04 Prepared By: MAF Checked By: ALA Notes: Slug tests were analyzed using the Bouwer-Rice mathmatical model, unless where indicated. cm/sec - centimeter per second ft/day - feet per day -- No statistics necessary, when only one slug test analyzed Slug Test Number Hydraulic Conductivity (cm/sec) Hydraulic Conductivity Result (ft/day)Slug Test Type 5.96E-01 6.25E-02 4.17E-05 3.62E-06 3.26E-06 3.73E-07 4.14E-01 1.98E+00 1.18E-01 1.03E-02 9.24E-03 1.06E-03 3.05E-01 MW-201BR AB-1BR AB-4BRD GWA-9BR GWA-16BR GWA-20BR GWA-25BR GWA-26BR GWA-27BR Bedrock Well ID 6.97E-04 GEOMETRIC MEAN HIGHEST CONDUCTIVITY LOWEST CONDUCTIVITY Table 6-18. Estimated Effective Porosity/Specific Yield and Specific Storage for Upper Hydrostratigraphic Units (A, F, S, M1, and M2) Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, August 11, 2016. Belews Creek Steam Station Page 1 of 1 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% M1 63 22.1%24.0%28.4%15.8%4.0%34.0% M2 29 29.3%30.0%31.3%27.2%24.5%34.0% approximately equal in value. 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. 3.0E-04 - 1.5E-05 Effective Porosity/Specific Yield (%) Specific Storage (1/ft) - 6.1E-05 - 4.0E-05 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 3. Specific Storage ranges based on published values (Domenico and Mifflin, 1965). Alluvium and M1 fall within Table 6-19. Total Porosity, Secondary (Effective) Porosity/Specific Yield, and Specific Storage for Lower Hydrostratigraphic Units (TZ and BR) Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Belews Creek Steam Station Page 1 of 1 Hydrostratigraphic Unit Transition Zone (TZ) Bedrock (BR) - Fractured Bedrock (BR) - Dense Notes: 1. Ranges based on published values (Domenico and Mifflin, 1965; Singhal and Gupta, 2010). 2. Effective porosity and specific yield are not synonymous. For practical purposes, they may be estimated as approximately equal in value. 3. Table revised 07/13/2016. 2.0 - 5.0 5 - 10 < 1.0E-06 0 - 3 0 - 5 < 1.0E-06 Secondary (Effective) Porosity / Specific Yield (%)Total Porosity (%)Specific Storage (1/ft) 5.0 - 10.0 5 - 15 1.0E-06 - 2.1E-05 Table 6-20. Field Permeability Test Results Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Belews Creek Steam Station Page 1 of 1 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 -5.11E-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 -M1 AB-8SL Flush Bottom 24 -4.05E-04 -A GWA-1D Well Point - Falling Head 57.5 62.5 -1.23E-05 BR GWA-1S Flush Bottom 10.4 -1.23E-06 -M1 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-10D 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 -1.11E-04 -A AB-5GTB Well Point - Falling Head 24 29 -6.33E-04 A BG-1S Well Point - Falling Head 18 23 -5.73E-05 M1 BG-1S Well Point - Falling Head 35 40.5 -3.91E-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 -3.11E-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 Table 6-21. Historic Laboratory Permeability Test Results Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Belews Creek Steam Station Page 1 of 1 Borehole Depth 1 of Test (ft bgs)Depth 2 of Test (ft bgs) Vertical Hydraulic Conductivity 'k' (cm/sec) Hydrostratigraphic Layer BC-4A1 5 6.7 2.51E-04 M1 BC-51 9.5 11.5 3.61E-04 M1 MW2-11 9.5 11.5 2.80E-06 M1 MW2-21 24.1 25.5 1.81E-04 M1 MW2-21 34.1 36.1 6.63E-05 M1 MW2-31 29 30.6 5.58E-05 M1 PZ-01D2 56 58 8.40E-07 M1 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 TABLE 7-1 UNSATURATED BACKGROUND SOIL DATA SUMMARY BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 7-1 Unsaturated Background Soil Data Page 1 of 1 pH Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chloride Chromium Cobalt Copper Iron Lead Magnesium Manganese Mercury Molybdenum Nickel Nitrate (as N)Potassium Selenium Sodium Strontium Sulfate Thallium Vanadium Zinc S.U.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 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 mg/kg mg/kg NE NE 0.9 5.8 580 63 45 3 NE NE 360,000 0.9 700 150 270 NE 65 1 NE 130 NE NE 2.1 NE NE NE 0.28 6 1200 Sample ID Sample Collection Date BG-1D (1-2)3/26/2015 4.8 j 17400 ---34.6 41.5 <15.5 0.89 <0.37 131 j <305 28.7 1.7 j 11.9 38100 21.1 249 57.6 0.046 <3.1 1.3 j <30.5 j 348 ---<311 1.9 j <305 ---54.9 13.2 BG-1D (11)3/27/2015 5.7 j 5490 ---10.9 26.8 12.2 j 0.68 <0.47 <195 <396 4.7 28.6 j-4.5 12200 77.3 j-677 1010 0.0063 j 8.9 12 <39.6 j 540 ---<390 <3.9 <396 ---14.2 28.1 BG-1D (21)3/27/2015 5.4 j 6210 j+---7.5 50 13.2 j 0.88 <0.47 <197 <400 2.3 6.8 3.5 12400 j+25.9 836 257 j+<0.01 <3.9 2.1 <40 j 567 2.2 j <393 <3.9 <400 ---16 31.6 BG-1D (31)3/27/2015 5.6 j 12700 ---30.7 42.3 38.6 2.8 <0.42 <174 <358 17.1 37.9 9.8 40400 17.1 3300 871 <0.01 <3.5 32.8 <35.8 j 876 2.9 j <347 <3.5 <358 ---50.9 85.4 BG-2D (1-2)3/23/2015 5.5 j 13800 ---3.3 j 25.1 <18.9 0.32 j <0.45 428 <363 8.5 ---7.6 24100 18.7 678 53.1 0.064 <3.8 <1.9 <36.3 j 199 j ---<378 <3.8 <363 ---46.6 10.5 BG-2D (10-12)3/24/2015 5 j 9670 ---2.7 j 70.7 34.5 j 0.86 <0.42 <173 j <352 5.3 5.5 8.1 32300 21.7 1060 245 0.015 <3.5 j <1.7 <35.2 j 183 j 3 j <346 <3.5 j <352 ---105 14.2 BG-2D (20-22)3/24/2015 5.1 j 6680 ---<3.7 88.9 <18.5 0.29 j <0.45 <185 j <367 <1.9 j 5 4.8 9570 11.3 1090 450 <0.01 <3.7 j <1.9 <36.7 j 949 ---<371 <3.7 j <367 ---20 39.1 BG-2D (30-32)3/24/2015 5.2 j 7530 ---<4 91.9 <20.1 0.33 j <0.48 <201 j <403 <2 j 5 1.8 j 13000 6.6 1500 680 <0.01 <4 j <2 <40.3 j 1240 ---<402 <4 j <403 ---27 20.1 BG-3S (1-2)5/12/2015 5.4 j 14800 ------29.9 14 j 0.37 <0.77 158 j <329 15.9 ---12.9 27800 26.6 238 39.6 0.031 <3.2 4.1 <32.9 j 343 ---<320 <3.2 <329 ---60 8.4 BG-3S (10-12)5/12/2015 4.9 j 10000 ------32.3 20.9 0.75 <0.91 <189 <362 21.5 15.6 14.3 44200 6.2 j 647 513 0.0095 j <3.8 4.5 <36.2 j <379 ---<379 <3.8 <362 ---141 21.2 BG-3S (20-22)5/12/2015 5 j 9280 ------68.4 16.6 0.76 <0.73 <152 <308 15.4 8.1 28.5 36800 14.4 2620 216 <0.0097 <3 9.8 <30.8 j 2360 ---<304 <3 <308 ---55.3 48.5 GWA-3D (34-35.5)5/4/2015 7 j 7610 ------108 <19.3 0.97 <0.93 1050 <366 1.1 j ---2 9110 6.4 j 2080 460 <0.012 <3.9 j 1.1 j <36.6 j 1440 ---<386 j 11.4 <366 ---18.4 29.6 GWA 4S (45-47)3/5/2015 6.4 j 4830 ---<2.8 79.5 5 0.52 <0.33 599 <284 1 j+2.2 j 2.8 7760 15.6 1320 383 <0.01 <0.56 1.1 <28.4 j 1060 ---49.2 j 4.3 <284 ---9.4 20.3 GWA-12D (10-12)4/15/2015 5.6 j 4320 ------26.6 <15.4 0.31 <0.74 <154 j <315 <1.5 j 6.5 0.96 j 912 13.2 287 296 <0.0097 j <3.1 <1.5 j <31.5 j 313 ---<308 j <3.1 j <315 ------8.5 GWA-12D (15-17)4/15/2015 5.4 j 14300 ---<5.6 98.6 <13.9 0.39 <0.67 <139 j <281 <1.4 j 2.9 j 1.8 7740 19.9 5180 187 <0.0092 j <2.8 <1.4 j <28.1 j 4230 ---<279 j <2.8 j <281 ---<5.6 64.7 GWA-12D (20-22)4/15/2015 5.3 j 11900 ------90.7 <14.5 0.43 <0.69 <145 j <285 0.97 j 3.5 j 9.1 7870 14.7 3230 135 <0.009 j <2.9 0.79 j <28.5 j 2830 ---<289 j <2.9 j <285 ---8.2 43.6 GWA-12D (25-27)4/15/2015 ---12200 ------82.5 <19.6 0.59 <0.94 <196 j <402 4.7 4.5 j 11.3 9790 12.8 3070 247 <0.013 j <3.9 1.1 j <40.2 j 3310 ---<393 j <3.9 j <402 ---10.6 43.6 BGSB-01 (1-2)07/26/2017 4.8 33000 <0.46 59 B 38 1.6 <8.1 <0.023 170 j 3.4 j 37 3.5 20 49000 29 610 j 66 B 0.061 j 0.98 j 7.8 0.3 750 1.5 37 j 2.5 j <12 0.38 64 19 BGSB-01 (5-7)07/26/2017 4.6 17000 <0.47 22 B 18 1.6 <2.4 <0.023 58 j 1.9 j 19 1.1 15 21000 44 490 39 B <0.092 <1.9 6.4 0.089 j 650 0.84 j 32 j 0.82 j <12 0.15 42 15 BGSB-01 (10-12)07/26/2017 4.7 15000 <0.6 9.1 B 47 1.4 <1.6 <0.03 27 j 1.2 j 6.9 5.8 5.2 12000 33 590 180 B <0.091 0.56 j 3.8 0.1 j 620 1 j <160 0.76 <12 0.39 13 23 BGSB-01 (15-17)07/26/2017 5.0 13000 <0.4 5.6 B 46 1.3 <3.8 <0.02 54 j <12 6.7 16 3.2 8700 30 610 230 B <0.091 <3 3.7 0.074 j 870 1.9 <380 1.9 <12 0.66 9.8 26 BGSB-01 (20-22)07/26/2017 4.8 24000 <0.52 6.3 B 62 1.3 1.2 j <0.026 <280 <11 5 21 5.2 11000 22 900 250 <0.09 M 0.97 j 6.2 <0.23 1900 1.5 <280 2.8 <11 M 0.6 8.6 44 BGSB-02 (1-2)07/26/2017 4.9 16000 <0.37 3.9 B 14 0.28 <2.8 <0.019 380 4.2 j 10 1.8 8.8 22000 14 540 59 B <0.1 <2.2 2 j 0.32 280 0.71 j <280 1.5 8 j 0.14 65 13 BGSB-02 (10-12)07/26/2017 4.6 13000 <0.51 0.5 j,B 27 0.27 <10 <0.026 <1000 <12 1.1 j 4.8 3.6 11000 12 880 j 110 B <0.092 <8.1 <8.1 <0.23 440 j 1.8 <1000 <4 <12 0.066 j 35 8.1 j BGSB-02 (15-17)07/26/2017 5.0 12000 <0.45 0.54 B 42 0.37 <17 0.025 260 j <11 2.6 j 7.2 10 12000 22 1000 j 490 <0.087 <13 <13 <0.23 730 j 2.7 280 j <6.7 <11 0.19 24 23 BGSB-02 (20-22)07/26/2017 5.0 21000 <0.57 1.2 B 70 0.51 <22 <0.029 450 j <12 7.8 7.2 19 17000 20 1400 j 480 <0.097 <18 <18 0.076 j 710 j 4.5 360 j <9 <12 0.26 35 22 BGSB-02 (25-27)07/26/2017 5.0 30000 <0.38 0.85 B 140 0.57 <23 <0.019 300 j <12 1.2 j 6.2 9.2 14000 7.2 1400 j 490 <0.089 <19 <19 0.073 j 990 j 4.1 340 j <9.3 <12 0.27 18 20 j BGSB-02 (30-32)07/26/2017 5.3 17000 <0.38 0.77 B 71 0.47 <8.8 0.033 200 j <12 3.6 17 4.8 14000 17 1700 j 550 B <0.1 <7.1 <7.1 0.08 j 880 2.2 <880 <7.1 <12 0.34 23 15 BGSB-03 (1-2)07/26/2017 5.0 17000 <0.41 3.2 B 22 0.39 <3.7 0.032 230 <11 20 1.4 9.5 22000 11 350 42 B <0.09 0.5 j 2.5 j 0.084 j 440 0.56 j <190 1.7 <11 0.1 j 37 14 BGSB-03 (5-7)07/26/2017 5.0 17000 <0.3 2.8 B 38 0.56 <2.3 <0.015 47 j 1.8 j 5.1 6.7 9.9 9800 29 530 170 B <0.082 0.81 j 5.8 0.09 j 840 0.96 <230 0.33 j <11 0.27 28 24 BGSB-03 (10-12)07/26/2017 5.2 23000 <0.39 2.2 B 64 0.66 <13 <0.02 <1300 <12 27 31 13 25000 12 2100 540 B <0.1 <10 6.1 j 0.079 j 1500 2.8 <1300 <5 <12 0.32 95 27 BGSB-03 (15-17)07/26/2017 4.9 15000 <0.43 3.6 B 82 1.1 <12 0.032 <1200 <14 4.4 32 15 18000 13 2100 470 B <0.1 <9.8 4.5 j <0.27 1200 5 <1200 <4.9 <14 0.65 99 21 BGSB-03 (20-22)07/26/2017 4.9 19000 M 0.14 j 4.9 B 53 5.9 <10 M 0.013 j <1000 M <14 43 M 22 23 M 51000 M 9.8 1100 630 B,M <0.11 <8.2 M 5.1 j 0.083 j 590 j 2.5 <1000 <4.1 <14 0.2 280 34 M GWASB-12 (5-7)07/26/2017 4.4 11000 <0.42 M 6.7 B 16 0.36 <2.1 <0.021 110 j 2.2 j 9.4 1 9.6 11000 15 320 43 B <0.096 1.2 j 1.5 j 0.11 j,M 360 1.1 <210 1 <13 M 0.14 20 M 13 GWASB-12 (10-12)07/26/2017 4.6 8500 0.09 j 3.2 B 20 0.42 <2.9 <0.019 200 j 7 j 6.8 2 8.4 7100 16 360 130 B <0.096 1.1 j 1.2 j 2.6 M 410 1.7 <290 1.6 8.7 j,M 0.099 j 12 12 GWASB-12 (15-17)07/26/2017 5.0 14000 <0.31 3.2 B 51 0.53 <9.2 <0.015 <920 <12 3.1 7 4.4 7200 14 440 j 200 B <0.089 <7.4 <7.4 0.072 j 470 j 2.8 <920 <3.7 <12 0.22 12 14 GWASB-12 (20-22)07/26/2017 5.1 14000 <0.36 2 B 30 0.48 <42 0.016 j 570 j 1.2 j 6.6 j 2.7 8.1 j 9900 21 1500 j 380 <0.098 <34 <34 0.078 j 1200 j 7.7 630 j <17 <12 0.17 8.4 16 j GWASB-12 (25-27)07/26/2017 5.5 14000 <0.32 1.2 B 46 0.59 <23 <0.016 290 j <12 5.9 6.1 5.8 9500 12 810 j 230 B <0.099 <9.1 <9.1 0.079 j 650 j 5.1 <1100 <9.1 <12 0.18 9.9 13 Notes: 54 - Indicates values omitted from dataset. --- - Not applicable; non-detect concentration greater than PSRG Protection of Groundwater; value omitted - Indicates data removed /identified as an outlier < - Results not detected at concentrations which equal the laboratory's method reporting limit. B - Target analyte detected in method blank at or above the reporting limit. Target analyte concentration in sample is less than 10X the concentration in the method blank. j - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. j- - Estimated concentration, biased low. j+ - Estimated concentration, biased high. M - Matrix spike / matrix spike dup failure. mg/kg - milligrams per kilogram NE - Not established PSRG Protection of Groundwater - NCDEQ IHSB Preliminary Soil Remediation Soil Remediation Goals Table – October 2016 S.U. - Standard Units Prepared by: JHG Checked by: BDR Analytical Results Reporting Units Analytical Parameter PSRG Protection of Groundwater TABLE 7-2 PROVISIONAL BACKGROUND THRESHOLD VALUES FOR SOIL BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC Parameter Reporting Unit PSRG Protection of Groundwater BTV pH*S.U.NE 4.3 - 5.8 Aluminum mg/kg NE 31253 Antimony mg/kg 0.9 0.6 Arsenic mg/kg 5.8 12.6 Barium mg/kg 580 139 Beryllium mg/kg 63 19.3 Boron mg/kg 45 17 Cadmium mg/kg 3 0.032 Calcium mg/kg NE 450 Chloride mg/kg NE 14 Chromium mg/kg 360,000 36.0 Cobalt mg/kg 0.9 51 Copper mg/kg 700 28.4 Iron mg/kg 150 40400 Lead mg/kg 270 39.7 Magnesium mg/kg NE 3600 Manganese mg/kg 65 1117 Mercury mg/kg 1 0.1 Molybdenum mg/kg NE 9.8 Nickel mg/kg 130 11.6 Nitrate (as N)mg/kg NE 0.3 Potassium mg/kg NE 2114 Selenium mg/kg 2.1 5.44 Sodium mg/kg NE 393 Strontium mg/kg NE 9 Sulfate mg/kg 250 12 Thallium mg/kg 0.28 0.69 Vanadium mg/kg 6 114 Zinc mg/kg 1200 51.8 Notes: * - Upper and lower threshold values calculated for parameter † - Indicates value is provisional; dataset contains less than 10 valid samples mg/kg - milligrams per kilogram NA - Not applicable; dataset contains zero valid samples ND - Not Detected NE - Not Established S.U. - Standard Unit Prepared by: JHG Checked by: MCM P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 7-2 Soil BTVs.xlsx Page 1 of 1 TABLE 10-1 BACKGROUND GROUNDWATER RESULTS THROUGH APRIL 2017 BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 10-1 Background GW Results Page 1 of 6 pH Turbidity Alkalinity Aluminum Antimony Arsenic Barium Beryllium Bicarbonate Alkalinity Boron Cadmium Calcium Carbonate Alkalinity Chloride Chromium (VI)Chromium Cobalt Copper Iron Lead Magnesium Manganese Mercury S.U.NTU ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L 6.5-8.5 NE NE NE 1*10 700 4*NE 700 2 NE NE 250,000 10 10 1*1000 300 15 NE 50 1 Sample ID Sample Collection Date BG-2S 7/9/2015 5.8 8.33 13400 410 <0.5 <0.5 60 <0.2 13400 <50 0.41 1920 <5000 2000 ---1.1 J+0.19 J 0.46 J 650 <0.1 1280 25 <0.2 BG-2S 9/29/2015 5.8 9.9 11900 J-200 0.3 J <0.5 61 <0.2 11900 <50 0.036 J 1700 <5000 2500 J+1.4 1.7 J+0.13 J 0.58 J+300 0.12 1180 10 <0.2 BG-2S 11/12/2015 5.8 9.54 15500 1000 <0.5 <0.5 110 <0.2 15500 <50 0.05 J 3340 <5000 9400 1.3 J+1.8 J+0.2 J 0.52 J 1600 0.24 2400 31 <0.2 BG-2S 12/16/2015 6.0 5.8 20300 91 J <0.5 <0.5 110 0.07 J 20300 <50 0.035 J 4920 <5000 10200 1.3 5.4 <0.5 0.45 J+120 <0.1 3150 6.1 <0.2 BG-2S 3/29/2016 5.9 7.1 22900 142 <0.5 0.1 30.9 0.063 J+22900 <50 <0.08 8030 <5000 18800 1 2.4 0.085 J+0.24 J 234 0.11 4230 5.1 <0.2 BG-2S 5/11/2016 6.0 8.1 22200 472 <0.5 0.058 J 33.7 0.044 J 22200 <50 <0.08 8250 <5000 18.5 2 4.6 0.12 0.94 383 0.11 3970 6.3 <0.2 BG-2S 9/20/2016 5.9 7.6 22500 481 <0.5 0.084 J 33.9 0.029 J 22500 <50 <0.08 7260 <5000 14700 1.1 4.3 0.12 2.1 768 0.11 3610 14.4 <0.2 BG-2S 4/4/2017 5.8 9.8 19500 345 <0.5 0.1 118 0.075 J+<5000 <50 0.068 J 5360 <5000 14000 1.5 3.4 0.18 1.3 J+467 0.29 3410 11.8 <0.2 BG-3S 7/18/2015 5.3 4.02 6800 130 <0.5 <0.5 40 0.17 J 6800 <50 0.052 J 2080 <5000 2900 ---1.2 J+0.53 <1 <50 0.066 J 1310 29 <0.2 BG-3S 11/17/2015 5.3 2.42 6500 60 J <0.5 <0.5 36 0.2 J 6500 <50 <0.08 1930 <5000 3800 0.28 0.72 0.35 J <1 81 0.11 1180 19 <0.2 BG-3S 12/16/2015 5.3 9.38 6700 150 <0.5 <0.5 36 0.17 J 6700 <50 0.027 J 2060 <5000 3900 0.25 0.64 J+0.24 J 0.46 J+160 0.048 J 1210 16 <0.2 BG-3S 3/30/2016 5.3 7.9 8700 <100 <0.5 <0.1 32.1 0.18 8700 <50 <0.08 2110 <5000 1600 0.26 0.83 J+0.34 0.27 J 51.9 <0.1 1300 15.9 <0.2 BG-3S 5/12/2016 5.3 6.5 6800 374 0.71 0.12 46.4 0.23 6800 <50 <0.08 2550 <5000 1.7 0.27 1.1 0.4 1.1 482 0.29 1410 24 <0.2 BG-3S 9/22/2016 5.4 5.3 8000 118 <0.5 <0.1 45.2 0.28 8000 <50 <0.08 2400 <5000 1900 0.21 1.5 0.21 2.5 158 <0.1 1390 13.9 <0.2 BG-3S 11/18/2016 5.5 7.5 7900 J 7950 0.1 J 0.61 102 0.56 7900 J <50 <0.08 2440 <5000 2300 2.3 3.2 1.3 2.7 11100 2.4 1360 189 <0.2 BG-3S 1/26/2017 5.4 9.4 7200 449 <0.5 0.12 42.6 0.23 7200 <50 <0.08 2150 <5000 2400 0.5 1.4 0.3 0.71 666 0.38 1180 18.5 <0.2 BG-3S 4/5/2017 5.5 9.6 7800 322 <0.5 0.066 J 38.7 0.22 J+7800 <50 <0.08 2110 <5000 2800 0.24 1.4 J+0.19 J+0.24 J+464 0.3 1150 14 <0.2 MW-202S 1/6/2011 5.6 8.44 ------<1 <1 23 ------<50 <1 ------------<5 ---<5 69 <1 ---26 <0.05 MW-202S 5/4/2011 5.6 6.78 ------<1 <1 21 ------<50 <1 ------------<5 ---<5 81 <1 ---18 <0.05 MW-202S 9/6/2011 5.3 2.96 ------<1 <1 24 ------<50 <1 ------------<5 ---<5 40 <1 ---11 <0.05 MW-202S 1/9/2012 5.6 2.25 ------<1 <1 24 ------<50 <1 ------------<5 ---<5 31 <1 ---9 <0.05 MW-202S 5/9/2012 5.6 2.77 ------<1 <1 25 ------<50 <1 ------------<5 ---<5 113 <1 ---9 <0.05 MW-202S 9/5/2012 5.5 2.56 ------<1 <1 23 ------<50 <1 ------------<5 ---<5 51 <1 ---5 <0.05 MW-202S 1/9/2013 5.7 2.6 14000 ---<1 <1 24 ------<50 <1 1190 ---------<5 ---<5 64 <1 573 <5 <0.05 MW-202S 5/8/2013 5.6 3.76 15000 ---<1 <1 21 ------<50 <1 1090 ---------8 ---<5 73 <1 493 <5 <0.05 MW-202S 9/9/2013 5.4 3.79 9400 ---<1 <1 22 ------<50 <1 1080 ---------<5 ---<5 53 <1 496 <5 <0.05 MW-202S 1/8/2014 5.3 3.47 10000 ---<1 <1 22 ------<50 <1 1060 ---------<5 ---<5 72 <1 517 <5 <0.05 MW-202S 5/6/2014 5.5 2.1 8700 ---<1 <1 21 ------<50 <1 1090 ---------<5 ---<5 32 <1 495 <5 <0.05 MW-202S 9/9/2014 5.4 1.78 11000 ---<1 <1 22 ------<50 <1 1080 ---------<5 ---<5 25 <1 506 <5 <0.05 MW-202S 1/6/2015 5.5 2.06 12000 ---<1 <1 22 ------<50 <1 1090 ---------<5 ---<5 35 <1 492 <5 <0.05 MW-202S 5/5/2015 5.6 0.69 13200 23 1.05 <1 22 <1 13200 <50 <1 1080 <5000 ------<5 <1 <5 22 <1 518 <5 <0.05 MW-202S 7/16/2015 5.5 6.48 14000 95 J 0.44 J+<0.5 19 0.23 14000 <50 <0.08 1040 <5000 1200 ---1.2 J+<0.5 0.9 J+68 <0.1 474 3.2 J <0.2 MW-202S 10/2/2015 5.8 3.6 13400 140 <0.5 <0.5 20 0.25 13400 <50 <0.08 1010 <5000 1700 ---1.3 0.28 J 1.8 370 0.57 523 13 <0.2 MW-202S 12/16/2015 5.4 2.5 13700 320 <0.5 <0.5 25 0.25 13700 <50 <0.08 1060 <5000 1700 0.54 1.7 J+0.39 J 0.63 J+750 0.13 J+497 26 <0.2 MW-202S 3/29/2016 5.3 2.7 12600 <100 <0.5 0.043 J 19.9 0.23 J+12600 <50 <0.08 1060 <5000 1700 0.48 0.74 J+0.075 J+0.17 J 82.5 <0.1 519 3.9 J <0.2 MW-202S 5/9/2016 5.7 8.9 15800 172 <0.5 <0.1 23.1 0.19 15800 <50 <0.08 1620 <5000 1.1 0.5 0.92 0.063 J <0.5 226 <0.1 533 4.4 J <0.2 MW-202S 9/21/2016 5.9 0.63 13500 <100 <0.5 <0.1 22.8 0.2 13500 <50 <0.08 1130 <5000 1300 0.58 0.82 0.027 J 0.81 84.8 <0.1 516 <5 <0.2 MW-202S 11/17/2016 5.8 3.1 15500 99.5 J <0.5 <0.1 23.2 0.2 15500 <50 <0.08 1000 <5000 1400 0.94 1.1 J 0.056 J 0.19 J 150 <0.1 477 3.9 J <0.2 MW-202S 1/5/2017 5.4 1.56 13000 20 <1 <1 23 <1 13000 <50 <1 1170 <5000 1600 <5 <1 <5 28 <1 563 <5 <0.05 MW-202S 1/25/2017 5.6 0.5 14600 <100 <0.5 <0.1 21.5 0.16 14600 <50 <0.08 1220 <5000 1600 1.3 1 <0.1 0.16 J 28.2 J <0.1 576 <5 <0.2 MW-202S 4/3/2017 5.8 0.8 15400 <100 <0.5 <0.1 23 0.16 <5000 <50 <0.08 1130 <5000 1100 0.7 0.86 J+<0.1 <0.5 <50 <0.1 514 <5 <0.2 MW-3 10/17/2012 5.7 6.15 <100 ---<1 <1 <5 <5 ---<50 <1 <10 ---<100 ---<5 <1 <5 <10 <1 <5 <5 <0.05 MW-3 4/9/2013 5.5 8.07 8770 ---<1 <1 50.9 <5 ---<50 <1 3230 ---9530 ---<5 <1 <5 59.9 <1 1040 3.81 0.007 MW-3 10/29/2013 5.6 7 8290 ---0.355 0.255 53.4 0.313 ---<50 <1 3350 ---8190 ---3.83 0.463 2.45 1280 0.622 1200 22.3 <0.05 Shallow Field Parameters Analytical Results Analytical Parameter Reporting Units 15A NCAC 02L Standard TABLE 10-1 BACKGROUND GROUNDWATER RESULTS THROUGH APRIL 2017 BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 10-1 Background GW Results Page 2 of 6 Methane Molybdenum Nickel Nitrate + Nitrite Potassium Selenium Sodium Strontium Sulfate Sulfide Thallium Total Dissolved Solids Total Organic Carbon Vanadium Zinc Radium (Total)Uranium (Total) ug/L ug/L ug/L ug-N/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L pCi/L ug/L NE NE 100 NE NE 20 NE NE 250,000 NE 0.2*500,000 NE 0.3*1000 NE NE Sample ID Sample Collection Date BG-2S 7/9/2015 1.8 J+0.11 J 0.92 J+420 <5000 <0.5 3510 J 18 <1000 <100 <0.1 57000 <1000 0.31 J 7.3 J ------ BG-2S 9/29/2015 1.6 J+0.12 J 0.63 410 <5000 <0.5 3440 J 18 600 J <100 0.025 J 32000 <1000 0.62 J 7.5 J ------ BG-2S 11/12/2015 1.4 J+<0.5 1.2 540 J+<5000 <0.5 5060 31 830 J <100 0.016 J 62000 <1000 0.87 J 13 ------ BG-2S 12/16/2015 1.3 J+0.22 J 2.7 580 <5000 <0.5 5760 41 670 J <100 <0.1 87000 <1000 0.47 J 23 J+------ BG-2S 3/29/2016 1.6 J+0.17 J 1.5 670 <5000 <0.5 7030 48 950 J <100 J <0.1 90000 <1000 1 10.6 0.539 0.5 BG-2S 5/11/2016 <10 0.12 J 3.2 0.68 <5000 <0.5 7210 54.4 3.3 <0.1 <0.1 88 ---0.86 12.9 0.274 0.5 BG-2S 9/20/2016 <10 0.17 J 3.4 710 <5000 <0.5 6760 45.8 540 J <100 <0.1 84000 <1000 1 9.8 J 0.116 0.5 BG-2S 4/4/2017 <10 0.18 J+1.9 620 <5000 <0.5 5880 45.9 1100 <100 0.038 J+77000 ---1.3 7.2 J+0.377 0.5 BG-3S 7/18/2015 0.85 J+<0.5 0.94 J+3100 <5000 <0.5 4770 J 25 <1000 <100 0.048 J+57000 <1000 <1 6.9 J ------ BG-3S 11/17/2015 1.3 J+<0.5 0.32 J 2600 <5000 <0.5 4890 J 24 <1000 <100 0.034 J <25000 <1000 0.38 J 8.1 J ------ BG-3S 12/16/2015 2 J+<0.5 0.44 J+2500 <5000 <0.5 4870 J 26 <1000 <100 0.03 J 61000 <1000 0.69 J+6.8 J+------ BG-3S 3/30/2016 1.7 J+<0.5 0.93 2000 <5000 <0.5 3300 J 20.6 640 J <100 <0.1 <25000 8200 0.18 J 9.3 J 0.26 0.5 BG-3S 5/12/2016 <10 <0.5 0.56 3 <5000 <0.5 3920 J 29 <1 <0.1 0.027 J 37 ---0.88 9.5 J 0.552 0.5 BG-3S 9/22/2016 <10 <0.5 1.4 3800 <5000 <0.5 4230 J 31.4 550 J <100 0.018 J 59000 <1000 0.15 J 10.9 0.939 0.5 BG-3S 11/18/2016 <10 <0.5 1.7 3200 <5000 1.4 4430 J 32 710 J <100 0.061 J 53000 ---6.4 38.7 0.651 0.15 BG-3S 1/26/2017 <10 <0.5 0.83 3100 <5000 <0.5 4570 J 27.2 <1000 <100 0.041 J 53000 ---1.2 8.7 J 1.084 0.076 BG-3S 4/5/2017 <10 <0.5 0.76 2500 <5000 <0.5 4700 J 26.9 <1000 <100 0.025 J+45000 ---0.84 6.3 J 0.2289 0.5 MW-202S 1/6/2011 ------<5 ------<1 ------350 ---<0.2 35000 ------<5 ------ MW-202S 5/4/2011 ------<5 ------<1 ------120 ---<0.2 30000 ------<5 ------ MW-202S 9/6/2011 ------<5 ------<1 ------1200 ---<0.2 52000 ------<5 ------ MW-202S 1/9/2012 ------<5 ------<1 ------2400 ---<0.2 35000 ------<5 ------ MW-202S 5/9/2012 ------<5 ------<1 ------2300 ---<0.2 49000 ------<5 ------ MW-202S 9/5/2012 ------<5 ------<1 ------2000 ---<0.2 49000 ------<5 ------ MW-202S 1/9/2013 ------<5 ---721 <1 5540 ---1900 ---<0.2 48000 ------<5 ------ MW-202S 5/8/2013 ------<5 ---655 <1 5310 ---1200 ---<0.2 46000 ------<5 ------ MW-202S 9/9/2013 ------<5 ---651 <1 5320 ---970 ---<0.2 45000 ------<5 ------ MW-202S 1/8/2014 ------<5 ---657 <1 5390 ---1000 ---<0.2 54000 ------<5 ------ MW-202S 5/6/2014 ------<5 ---669 <1 5360 ---940 ---<0.2 42000 ------<5 ------ MW-202S 9/9/2014 ------<5 ---647 <1 5380 ---730 ---<0.2 50000 ------<5 ------ MW-202S 1/6/2015 ------<5 ---694 <1 5570 ---680 ---<0.2 35000 ------<5 ------ MW-202S 5/5/2015 ---<1 <5 ---628 <1 5460 ---580 ---<0.2 37000 ------<5 ------ MW-202S 7/16/2015 1.4 J+<0.5 0.3 J+46 J+<5000 <0.5 5300 9.1 <1000 <100 <0.1 41000 <1000 <1 2.8 J 8.74 0.248 MW-202S 10/2/2015 2.8 J+<0.5 0.39 J 40 <5000 <0.5 5810 7.9 640 J <100 <0.1 45000 <1000 0.71 J 2.5 J ------ MW-202S 12/16/2015 1.4 J+0.1 J 0.56 <20 <5000 <0.5 5610 9.6 <1000 <100 <0.1 55000 570 J 0.67 J 3 J ------ MW-202S 3/29/2016 1.8 J+<0.5 <0.5 39 <5000 <0.5 5220 8.7 570 J <100 J <0.1 33000 <1000 0.19 J <10 -0.076 0.5 MW-202S 5/9/2016 <10 <0.5 <0.5 0.053 <5000 <0.5 5640 10.1 0.88 J <0.1 <0.1 48 ---0.16 J <10 0.498 0.5 MW-202S 9/21/2016 <10 <0.5 <0.5 500 <5000 <0.5 5920 9.8 660 J <100 <0.1 45000 <1000 0.3 3 J ---0.5 MW-202S 11/17/2016 <10 <0.5 <0.5 380 <5000 <0.5 6040 9.6 790 J <100 <0.1 64000 ---0.2 J <10 0.17 0.5 MW-202S 1/5/2017 <1 <5 696 <1 5900 10 360 <0.2 68000 ---<0.3 <5 ------ MW-202S 1/25/2017 <10 <0.5 <0.5 40 <5000 <0.5 6530 9.9 760 J <100 <0.1 32000 ---0.27 J 3.1 J ---0.5 MW-202S 4/3/2017 <10 <0.5 <0.5 50 J+<5000 <0.5 5540 10.7 <1000 <100 <0.1 54000 ---0.22 J+<10 0.6706 0.5 MW-3 10/17/2012 ------<5 ---<100 <1 <50 ---<100 ------<10000 ---<1 <5 ------ MW-3 4/9/2013 ------<5 ---2260 <1 2810 ---185 ------53000 ---<1 <5 ------ MW-3 10/29/2013 ------2.89 ---2380 0.321 2860 ---173 ------63000 ---2.01 9.45 ------ Analytical Results Shallow Analytical Parameter Reporting Units 15A NCAC 02L Standard TABLE 10-1 BACKGROUND GROUNDWATER RESULTS THROUGH APRIL 2017 BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 10-1 Background GW Results Page 3 of 6 pH Turbidity Alkalinity Aluminum Antimony Arsenic Barium Beryllium Bicarbonate Alkalinity Boron Cadmium Calcium Carbonate Alkalinity Chloride Chromium (VI)Chromium Cobalt Copper Iron Lead Magnesium Manganese Mercury S.U.NTU ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L 6.5-8.5 NE NE NE 1*10 700 4*NE 700 2 NE NE 250,000 10 10 1*1000 300 15 NE 50 1 Sample ID Sample Collection Date Field Parameters Analytical Results Analytical Parameter Reporting Units 15A NCAC 02L Standard MW-3 4/16/2014 5.6 8.13 7190 0.29 0.09 61.7 0.26 ---<50 <1 3300 ---9810 ---1.58 0.15 <5 331 0.27 1120 7.42 0.02 MW-3 12/16/2015 5.7 8.55 7600 150 <0.5 <0.5 58 0.17 J 7600 <50 <0.08 3690 <5000 10300 0.83 1.2 J+0.18 J 0.38 J 170 0.15 1180 5.3 <0.2 MW-3 3/29/2016 4.8 8.1 4800 J 61.6 J <0.5 0.085 J 68.8 0.32 J+4800 J <50 0.058 J 2850 <5000 10700 0.34 0.84 J+0.07 J+0.32 J 86.1 0.12 1030 4.8 J <0.2 MW-3 9/22/2016 5.5 7.2 8400 140 <0.5 0.082 J 55.8 0.22 8400 <50 <0.08 3480 <5000 10000 1.2 11.3 0.21 0.16 J 209 <0.1 1100 7 <0.2 MW-3 1/26/2017 5.6 4.5 9600 132 <0.5 0.13 54.8 0.15 9600 <50 <0.08 3530 <5000 9400 0.68 1.4 0.15 0.31 J 178 0.14 1090 4.6 J <0.2 MW-3 4/6/2017 5.6 9.6 10400 71.4 J <0.5 0.12 J+55.1 0.16 J+<5000 <50 <0.08 3870 <5000 8900 0.68 1.4 J+0.11 0.64 J+105 0.095 J 1210 4.3 J <0.2 MW-3 4/11/2017 5.6 1.95 6860 ---<1 0.184 J 56.2 J <5 ---5.38 J <1 3830 ---11100 ---4.75 J 0.151 J <5 306 0.19 J 1210 6.25 J <0.05 BG-1D 7/14/2015 6.3 7.4 23800 J-140 1.5 0.46 J 4.1 J <0.2 23800 <50 0.2 5410 <5000 7800 NA 2.7 0.9 1.8 100 0.26 2200 93 <0.2 BG-1D 9/29/2015 5.8 2.1 12100 <100 0.21 J <0.5 3.1 J <0.2 12100 29 J 0.06 J 3460 <5000 7200 <0.02 0.22 J+2 0.3 J+38 J 0.05 J+2040 73 <0.2 BG-1D 11/12/2015 5.73 1.33 12100 57 J <0.5 0.12 J 4 J <0.2 12100 <50 0.077 J 3540 <5000 7100 0.096 1.1 J+1.8 0.23 J 100 0.11 2120 57 <0.2 BG-1D 12/16/2015 5.39 3.4 13100 <100 <0.5 <0.5 7.2 0.26 13100 <50 0.079 J 4080 <5000 7000 0.039 <0.5 1.6 8.8 36 J <0.1 2210 55 <0.2 BG-1D 3/29/2016 5.9 1.4 11900 <100 <0.5 0.076 J 2.6 J 0.1 J+11900 <50 0.096 3260 <5000 7500 <0.03 1.6 1.7 0.39 J 50.2 <0.1 2180 45.7 <0.2 BG-1D 5/11/2016 6.1 2.1 14700 <100 0.12 J 0.044 J 3.3 J 0.085 J 14700 <50 0.075 J 3900 <5000 7 0.082 1.5 1.4 0.41 J 43.6 J 0.18 2190 47.6 <0.2 BG-1D 9/20/2016 6 0.7 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA BG-1D 11/16/2016 6.6 0.7 32100 <100 <0.50 0.14 8.2 0.049 J 32100 29.9 J 0.069 J 3860 <5000 8700 0.3 0.40 J 0.22 1.1 <50.0 <0.10 2340 22.9 <0.20 BG-1D 1/25/2017 6.6 1 37100 <100 <0.5 <0.1 4.9 J 0.02 J 37100 <50 <0.08 4900 <5000 8100 0.22 0.32 J 0.11 0.34 J 30.4 J <0.1 2660 7.5 <0.2 BG-1D 4/3/2017 6.9 0.02 58800 <100 <0.5 0.1 6.6 0.049 J 58800 45.6 J <0.08 5470 <5000 7700 0.12 J+0.41 J+0.2 1.9 226 0.75 2660 13.2 <0.2 BG-2D 7/9/2015 6.52 9.25 47200 78 J 0.25 J 0.2 J 7.8 <0.2 47200 <50 0.059 J 11400 <5000 9700 NA 2.6 J+0.28 J <1 72 0.097 J 5960 12 <0.2 BG-2D 9/29/2015 6.7 1.5 46100 J-<100 0.49 J <0.5 6.8 <0.2 46100 <50 0.039 J 11700 <5000 9000 0.12 1.1 J+<0.5 0.24 J+27 J <0.1 J 5860 3.9 J <0.2 BG-2D 11/12/2015 6.49 4.06 49800 <100 0.19 J <0.5 10 <0.2 49800 <50 0.027 J 12400 <5000 8700 0.12 1.8 J+0.19 J 0.26 J 75 <0.1 6220 5.5 <0.2 BG-2D 12/16/2015 6.6 2.4 49000 <100 <0.5 <0.5 6.6 <0.2 49000 <50 <0.08 11700 <5000 9200 0.15 1 J+<0.5 <1 28 J <0.1 6060 <5 <0.2 BG-2D 3/29/2016 6.4 1 46200 <100 0.14 J 0.11 6.6 <0.1 46200 <50 <0.08 13200 <5000 14800 0.15 1.5 0.045 J+0.21 J <50 <0.1 7030 <5 <0.2 BG-2D 5/11/2016 6.5 1.2 44200 <100 0.12 J 0.09 J 6.2 <0.1 44200 <50 <0.08 13600 <5000 19.3 0.19 1.3 0.042 J 0.35 J <50 <0.1 6920 2.6 J <0.2 BG-2D 9/20/2016 6.3 0.9 47400 <100 0.28 J 0.11 6.5 0.021 J 47400 <50 <0.08 13700 <5000 20300 0.31 0.84 0.044 J 0.28 J <50 <0.1 7040 2.6 J <0.2 BG-2D 11/16/2016 6.6 1.7 48100 51.6 J 0.20 J 0.12 6 <0.10 48100 <50 <0.080 13600 <5000 18900 0.24 1.8 0.055 J 0.53 51.8 <0.10 7080 3.4 J <0.20 BG-2D 1/26/2017 6.6 1.6 51700 <100 0.21 J 0.12 6.5 0.014 J 51700 <50 <0.08 13700 <5000 15300 0.44 1.3 0.057 J 0.54 <50 <0.1 6940 3.1 J <0.2 BG-2D 4/3/2017 6.4 0.02 50800 <100 <0.5 0.11 5.1 <0.1 50800 <50 <0.08 13200 <5000 14000 0.13 J+0.55 J+0.024 J 0.3 J 52.2 <0.1 6790 2.7 J <0.2 BG-3D 9/30/2015 7 8.9 18500 <100 0.29 J <0.5 9.1 <0.2 18500 <50 <0.08 4410 <5000 5100 0.047 J 0.51 J+<0.5 0.5 J 44 J 0.14 J+1770 5.4 <0.2 BG-3D 11/12/2015 6 7.35 17900 81 J <0.5 <0.5 10 <0.2 17900 <50 <0.08 4390 <5000 5000 0.053 0.25 J+<0.5 0.24 J 77 0.11 1770 6.6 <0.2 BG-3D 12/16/2015 5.88 4.48 17900 <100 <0.5 0.11 J 9.4 <0.2 17900 <50 <0.08 4440 <5000 5300 0.091 <0.5 <0.5 0.38 J+60 0.051 J 1850 4.8 J <0.2 BG-3D 3/30/2016 5.9 2.8 19600 <100 0.24 J 0.13 9.3 0.038 J 19600 <50 <0.08 4700 <5000 5500 0.042 0.57 J+0.061 J 0.22 J 46.5 J <0.1 2050 3.2 J <0.2 BG-3D 5/12/2016 6 1 17600 <100 0.35 J 0.089 J 9.7 0.043 J 17600 <50 <0.08 4720 <5000 5.3 <0.03 0.48 J 0.03 J 0.42 J <50 <0.1 1930 3.1 J <0.2 BG-3D 9/22/2016 6.1 0.55 19600 <100 <0.5 0.069 J 7 0.019 J 19600 <50 <0.08 3990 <5000 4700 0.056 0.54 <0.1 0.44 J 31.2 J <0.1 1670 2.6 J 0.07 J BG-3D 11/18/2016 5.6 5.5 19200 J <100 <0.5 0.047 J 6.6 0.043 J 19200 J <50 <0.08 3880 <5000 5100 0.056 0.15 J <0.1 0.28 J <50 <0.1 1590 <5 <0.2 BG-3D 1/26/2017 5.9 0.8 18600 58.4 J <0.5 0.073 J 8.3 0.039 J 18600 <50 <0.08 4140 <5000 4800 0.36 2.4 0.037 J 0.36 J 42 J <0.1 1760 2.5 J <0.2 BG-3D 4/5/2017 6.1 9.69 20200 131 <0.5 0.1 14.8 0.058 J+<5000 <50 <0.08 4450 <5000 5000 0.073 J+2.2 J+0.063 J+0.16 J+99.4 0.21 1860 3.8 J <0.2 MW-202D 1/9/2012 6.11 5.75 NA NA <1 <1 11 NA NA <50 <1 NA NA NA NA <5 NA <5 850 1.11 NA 37 <0.05 MW-202D 5/9/2012 6.08 3.09 NA NA <1 <1 6 NA NA <50 <1 NA NA NA NA <5 NA <5 131 <1 NA 12 <0.05 MW-202D 1/9/2013 6.12 5.71 26000 NA <1 <1 6 NA NA <50 <1 3450 NA NA NA <5 NA <5 114 <1 1630 5 <0.05 MW-202D 5/8/2013 5.97 6.32 27000 NA <1 <1 5 NA NA <50 <1 3320 NA NA NA <5 NA <5 76 <1 1520 <5 <0.05 MW-202D 9/9/2013 5.64 5.13 23000 NA <1 <1 5 NA NA <50 <1 3610 NA NA NA <5 NA <5 113 <1 1670 <5 <0.05 MW-202D 5/6/2014 5.83 2.8 27000 NA <1 <1 6 NA NA <50 <1 3650 NA NA NA <5 NA <5 43 <1 1650 <5 <0.05 MW-202D 9/9/2014 5.69 2.05 26000 NA <1 <1 9 NA NA <50 <1 3830 NA NA NA <5 NA <5 64 <1 1750 <5 <0.05 Shallow Continued Deep TABLE 10-1 BACKGROUND GROUNDWATER RESULTS THROUGH APRIL 2017 BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 10-1 Background GW Results Page 4 of 6 Methane Molybdenum Nickel Nitrate + Nitrite Potassium Selenium Sodium Strontium Sulfate Sulfide Thallium Total Dissolved Solids Total Organic Carbon Vanadium Zinc Radium (Total)Uranium (Total) ug/L ug/L ug/L ug-N/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L pCi/L ug/L NE NE 100 NE NE 20 NE NE 250,000 NE 0.2*500,000 NE 0.3*1000 NE NE Sample ID Sample Collection Date Analytical Results Analytical Parameter Reporting Units 15A NCAC 02L Standard MW-3 4/16/2014 ------1.2 ---2510 <1 2970 ---150 ------51000 ---0.75 4.01 ------ MW-3 12/16/2015 2 J+0.1 J 0.73 <20 <5000 <0.5 3040 J 39 <1000 <100 0.023 J 53000 6300 0.62 J 5.1 J ------ MW-3 3/29/2016 1.6 J+<0.5 0.65 <20 2880 J <0.5 3090 J 27 <1000 <100 0.024 J 39000 <1000 0.38 4.7 J+0.749 0.5 MW-3 9/22/2016 <10 0.58 8.8 39 <5000 <0.5 2900 J 37.9 570 J <100 0.019 J <25000 <1000 0.41 27.9 1.075 0.5 MW-3 1/26/2017 <10 <0.5 0.67 <20 <5000 <0.5 2990 J 35.9 800 J <100 0.022 J <25000 ---0.57 3.9 J 1.237 0.5 MW-3 4/6/2017 <10 <0.5 0.79 23 J+<5000 <0.5 3190 J 39 790 J <100 <0.1 39000 ---0.49 J+4.5 J ---0.5 MW-3 4/11/2017 ------2.09 J ---2440 <1 3110 ---276 J ---<0.2 41000 ---1.03 J 4.38 J ------ BG-1D 7/14/2015 24.3 1.1 3.5 830 3300 J <0.5 11500 49 10500 <100 0.024 J 88000 660 J 0.75 J 7.7 J+6.56 0.231 BG-1D 9/29/2015 1.5 J+0.44 J 4.1 1300 <5000 <0.5 6570 33 5100 <100 0.056 J 63000 <1000 <1 8.5 J NA NA BG-1D 11/12/2015 1.6 J+0.14 J 5.4 1300 <5000 <0.5 6940 32 4500 <100 J 0.059 J 83000 <1000 <1 22 NA NA BG-1D 12/16/2015 1.7 J+1 4 1200 <5000 <0.5 6330 46 4700 <100 0.056 J 74000 <1000 <1 62 NA NA BG-1D 3/29/2016 1.7 J+0.14 J 5.6 1400 3310 J <0.5 6040 29.3 2800 <100 J 0.02 J 52000 <1000 0.094 J 48.8 0.1154 0.5 BG-1D 5/11/2016 <10 0.13 J 4.6 1.3 5720 <0.5 6950 34.2 4.8 <0.1 <0.1 48 NA <0.3 30.1 0.904 0.5 BG-1D 9/20/2016 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 0.21 NA BG-1D 11/16/2016 <10.0 0.16 J 3.4 1500 13300 <0.50 8980 58.8 3600 <100 0.059 J 65000 NA 0.098 J 31.9 0.4131 0.5 BG-1D 1/25/2017 <10 0.13 J 2.3 1400 17900 <0.5 10700 49.2 6300 <100 <0.1 86000 NA 0.2 J 46.2 0 0.5 BG-1D 4/3/2017 <10 0.29 J 1.6 830 24300 <0.5 12000 71.4 11000 <100 0.056 J 100000 NA 0.093 J 16 0.562 0.5 BG-2D 7/9/2015 2.6 J+1.4 1.5 J+650 <5000 <0.5 7540 40 3200 <100 <0.1 107000 <1000 1.4 5.8 J NA NA BG-2D 9/29/2015 1.6 J+0.82 0.58 610 <5000 0.21 J 6630 36 4000 <100 <0.1 109000 <1000 0.96 J 11 NA NA BG-2D 11/12/2015 2.5 J+0.93 2.3 610 <5000 <0.5 6560 34 4300 <100 <0.1 138000 <1000 1 J 6.9 J NA NA BG-2D 12/16/2015 2 J+0.67 0.77 610 <5000 <0.5 6380 36 3200 <100 <0.1 120000 7800 1 6.5 J+NA NA BG-2D 3/29/2016 1.8 J+0.63 1.3 720 <5000 <0.5 6600 34 2900 <100 J <0.1 96000 <1000 1.1 28.5 0.092 0.067 BG-2D 5/11/2016 <10 0.45 J 1.4 0.78 <5000 <0.5 6880 40.4 2.9 <0.1 <0.1 105 NA 0.94 15 0.499 0.5 BG-2D 9/20/2016 <10 0.53 1.1 860 <5000 <0.5 6930 41 1800 <100 0.023 J 121000 <1000 1.1 24.4 0.4509 0.5 BG-2D 11/16/2016 <10.0 0.52 1.4 690 <5000 <0.50 7150 46.2 2800 <100 <0.1 98000 NA 1.2 19.7 0.733 0.064 BG-2D 1/26/2017 <10 0.52 2.5 730 <5000 0.33 J 6880 37.8 3000 <100 0.024 J 69000 NA 1.2 11.7 0.708 0.097 BG-2D 4/3/2017 <10 0.57 0.46 J 630 <5000 <0.5 6750 41.6 2700 <100 <0.1 96000 NA 1.2 5.4 J 0.05 0.083 BG-3D 9/30/2015 1.1 J+0.12 J 0.2 J 2100 <5000 <0.5 6840 50 610 J <100 <0.1 56000 <1000 0.47 J 3.3 J NA NA BG-3D 11/12/2015 2.3 J+<0.5 0.19 J 2100 <5000 <0.5 7010 49 550 J <100 <0.1 48000 <1000 0.34 J 7.1 J NA NA BG-3D 12/16/2015 1.8 J+<0.5 0.3 J+2400 <5000 <0.5 7100 53 <1000 <100 <0.1 88000 <1000 0.7 J+9.1 J+NA NA BG-3D 3/30/2016 1.6 J+<0.5 0.47 J 2800 <5000 <0.5 7630 50.6 790 J <100 <0.1 48000 <1000 0.42 <10 0.381 0.5 BG-3D 5/12/2016 <10 <0.5 <0.5 2.4 <5000 <0.5 7490 49.2 <1 <0.1 <0.1 65.3 NA 0.47 6.1 J -0.025 0.5 BG-3D 9/22/2016 <10 <0.5 <0.5 1900 <5000 <0.5 6560 48.9 710 J <100 <0.1 <25000 <1000 0.38 <10 0.665 0.5 BG-3D 11/18/2016 <10 <0.5 <0.5 1800 <5000 <0.5 6880 44.6 870 J <100 <0.1 89000 NA 0.52 <10 0.23 0.5 BG-3D 1/26/2017 <10 <0.5 1.6 2000 <5000 <0.5 6910 46.1 660 J <100 <0.1 74000 NA 0.48 <10 0.661 0.5 BG-3D 4/5/2017 <10 <0.5 1.2 1900 <5000 <0.5 7170 52.8 520 J <100 <0.1 64000 NA 0.57 <10 0.804 0.5 MW-202D 1/9/2012 NA NA <5 NA NA <1 NA NA 3800 NA <0.2 82000 NA NA <5 NA NA MW-202D 5/9/2012 NA NA <5 NA NA <1 NA NA 2700 NA <0.2 78000 NA NA <5 NA NA MW-202D 1/9/2013 NA NA <5 NA 700 <1 7470 NA 2100 NA <0.2 71000 NA NA <5 NA NA MW-202D 5/8/2013 NA NA <5 NA 661 <1 7110 NA 2100 NA <0.2 79000 NA NA <5 NA NA MW-202D 9/9/2013 NA NA <5 NA 706 <1 7620 NA 1900 NA <0.2 70000 NA NA <5 NA NA MW-202D 5/6/2014 NA NA <5 NA 889 <1 7710 NA 2100 NA <0.2 67000 NA NA <5 NA NA MW-202D 9/9/2014 NA NA <5 NA 977 <1 7880 NA 1900 NA <0.2 80000 NA NA 6 NA NA Deep Surficial TABLE 10-1 BACKGROUND GROUNDWATER RESULTS THROUGH APRIL 2017 BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 10-1 Background GW Results Page 5 of 6 pH Turbidity Alkalinity Aluminum Antimony Arsenic Barium Beryllium Bicarbonate Alkalinity Boron Cadmium Calcium Carbonate Alkalinity Chloride Chromium (VI)Chromium Cobalt Copper Iron Lead Magnesium Manganese Mercury S.U.NTU ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L 6.5-8.5 NE NE NE 1*10 700 4*NE 700 2 NE NE 250,000 10 10 1*1000 300 15 NE 50 1 Sample ID Sample Collection Date Field Parameters Analytical Results Analytical Parameter Reporting Units 15A NCAC 02L Standard MW-202D 1/6/2015 5.85 1.77 26000 NA <1 <1 6 NA NA <50 <1 3850 NA NA NA <5 NA <5 17 <1 1750 <5 <0.05 MW-202D 5/5/2015 5.74 1.08 27000 37 1.16 <1 6 <1 27000 <50 <1 3680 <5000 NA NA <5 <1 <5 35 <1 1770 <5 <0.05 MW-202D 7/16/2015 6.03 9.81 28900 65 J 0.94 J+<0.5 5.3 <0.2 28900 <50 <0.08 3930 <5000 2000 NA 0.87 J+<0.5 0.59 J+72 0.067 J 1800 2.9 J <0.2 MW-202D 10/2/2015 6.1 4.7 28800 90 J <0.5 <0.5 5.7 <0.2 28800 <50 <0.08 4090 <5000 2800 NA 0.73 <0.5 0.34 J 130 0.07 J 2000 4.6 J <0.2 MW-202D 12/16/2015 5.6 0.3 27800 120 <0.5 <0.5 6.3 <0.2 27800 <50 <0.08 4080 <5000 2700 0.28 1.3 J+<0.5 0.37 J+160 0.057 J+1920 5.7 <0.2 MW-202D 3/29/2016 5.7 2.1 28100 <100 <0.5 0.056 J 4.5 J 0.049 J+28100 <50 <0.08 4070 <5000 2700 0.086 0.43 J+0.029 J+0.14 J 25.4 J <0.1 2040 <5 <0.2 MW-202D 5/10/2016 6 1 30200 <100 <0.5 0.05 J 4.8 J 0.064 J 30200 <50 <0.08 4330 <5000 2.2 0.11 0.56 0.022 J 0.12 J 46.4 J <0.1 1990 <5 <0.2 MW-202D 9/21/2016 6.3 2.25 31400 217 <0.5 0.085 J 6.9 0.053 J 31400 <50 <0.08 4290 <5000 2400 0.14 1.4 0.093 J 1.8 249 0.16 2010 10.2 <0.2 MW-202D 11/17/2016 6.1 1.9 31000 106 <0.5 0.049 J 6.1 0.038 J 31000 <50 <0.08 3840 <5000 2700 0.21 0.66 J 0.054 J 0.51 117 <0.1 1820 6.1 <0.2 MW-202D 1/5/2017 5.76 5.61 29600 315 <1 <1 6 <1 29600 <50 <1 4370 <5000 2800 NA <5 <1 <5 253 <1 2080 <5 <0.05 MW-202D 1/25/2017 6.9 1.3 29300 53.1 J <0.5 0.064 J 5.3 <0.1 29300 <50 <0.08 4520 <5000 2700 0.54 0.72 <0.1 0.29 J 40.7 J <0.1 2130 <5 <0.2 MW-202D 4/3/2017 6.1 0.7 30000 <100 <0.5 0.067 J 5.1 <0.1 <5000 28 J <0.08 4090 <5000 2200 0.14 0.34 J+<0.1 <0.5 28.2 J <0.1 1880 <5 <0.2 BG-2BR-A 4/12/2017 7.6 2.8 81300 <100 0.28 J 0.42 3.9 J 0.087 J <5000 <50 <0.08 25700 <5000 2500 0.052 J+34.7 0.76 1.7 228 <0.1 3350 87.1 <0.2 MW-202BR 7/16/2015 7.2 8.0 77600 80 J 0.43 J 0.51 11 0.18 J 77600 37 J 0.052 J 19100 <5000 2900 ---4.8 <0.5 J 9.7 78 0.068 J 3100 9.8 <0.2 MW-202BR 10/2/2015 6.5 2.2 53100 <100 <0.5 0.24 J 6.2 0.1 J 53100 <50 <0.08 10300 <5000 3000 ---1.6 J+<0.5 6.5 51 0.053 J 3320 7.6 <0.2 MW-202BR 11/12/2015 6.4 8.1 48100 170 <0.5 0.16 J 5.9 <0.2 48100 <50 <0.08 9520 <5000 2900 0.22 7 0.33 J 6.7 450 0.099 J 3060 18 <0.2 MW-202BR 12/16/2015 6.3 7.9 42900 91 J 0.4 J 0.26 J 4.4 J <0.2 42900 <50 0.033 J 8280 <5000 2800 0.18 5.3 0.14 J 2.8 J+130 0.052 J+2660 7.4 <0.2 MW-202BR 3/29/2016 6.4 6.0 32200 <100 0.18 J 0.28 <5 <0.1 32200 <50 <0.08 6360 <5000 3000 0.33 1.3 0.044 J+1.2 53.6 0.11 2310 4.3 J <0.2 MW-202BR 5/10/2016 6.6 7.1 37400 89.5 J 0.2 J 0.65 3.7 J 0.023 J 37400 <50 <0.08 7210 <5000 2.6 <0.03 54.7 0.76 4.6 356 <0.1 1870 19 <0.2 MW-202BR 9/21/2016 6.4 2.0 32700 <100 <0.5 0.34 <5 <0.1 32700 <50 <0.08 5470 <5000 2600 0.12 0.89 0.036 J 0.13 J 27 J <0.1 1930 4.4 J <0.2 MW-202BR 11/17/2016 6.3 2.6 36100 <100 0.19 J 0.22 <5 0.035 J 36100 <50 <0.08 5230 <5000 2800 0.14 1 J 0.047 J 0.67 29.5 J <0.1 1940 2.5 J <0.2 MW-202BR 1/25/2017 6.3 9.0 33900 144 0.42 J 0.2 3.9 J <0.1 33900 <50 <0.08 6440 <5000 2900 0.19 3 0.075 J 1.9 141 <0.1 2360 9.9 <0.2 MW-202BR 4/4/2017 6.4 3.0 40800 53.2 J 0.28 J 0.37 3 J 0.023 J+<5000 <50 <0.08 1680 <5000 2400 0.17 J+0.92 J+0.064 J+0.73 27.2 J <0.1 602 4.6 J <0.2 Prepared by: JHG Checked by: ALA / LWD Notes: 54 - Indicates value omitted from dataset. --- - Indicates parameter not measured or analyzed. - Indicates data removed/identified as an outlier - Indicates data removed due to autocorrelation < - concentration not detected at or above the adjusted reporting limit. * - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April, 1, 2013. J - Laboratory estimated concentration. J- - Estimated concentration, biased low. J+ - Estimated concentration, biased high. ug - N/L - Micrograms nitrogen per liter NE - Not established NTU - Nephelometric turbidity unit pCi/L - picocuries per liter S.U. - Standard Unit ug/L - Micrograms per liter NA - Not applicable; sample not measured or analyzed Radium (Total) = Combined Radium-226 and Radium-228 Uranium (Total) = Combined Uranium-233, Uranium-234, Uranium-236, and Uranium-238 Deep Continued Bedrock TABLE 10-1 BACKGROUND GROUNDWATER RESULTS THROUGH APRIL 2017 BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 10-1 Background GW Results Page 6 of 6 Methane Molybdenum Nickel Nitrate + Nitrite Potassium Selenium Sodium Strontium Sulfate Sulfide Thallium Total Dissolved Solids Total Organic Carbon Vanadium Zinc Radium (Total)Uranium (Total) ug/L ug/L ug/L ug-N/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L pCi/L ug/L NE NE 100 NE NE 20 NE NE 250,000 NE 0.2*500,000 NE 0.3*1000 NE NE Sample ID Sample Collection Date Analytical Results Analytical Parameter Reporting Units 15A NCAC 02L Standard MW-202D 1/6/2015 NA NA <5 NA 782 <1 7970 NA 1900 NA <0.2 64000 NA NA <5 NA NA MW-202D 5/5/2015 NA <1 <5 NA 1010 <1 8000 NA 1800 NA <0.2 72000 NA NA <5 NA NA MW-202D 7/16/2015 1.3 J+0.31 J 1.1 J+160 J+<5000 <0.5 7980 37 1200 <100 <0.1 71000 10900 <1 4.8 J 7.63 0.357 MW-202D 10/2/2015 1.9 J+0.46 J 4 170 <5000 <0.5 8410 37 2000 <100 <0.1 95000 <1000 0.42 J 2.6 J NA NA MW-202D 12/16/2015 1.1 J+0.34 J 2.8 140 <5000 <0.5 8060 40 1600 <100 <0.1 85000 <1000 <1 2.8 J NA NA MW-202D 3/29/2016 1.7 J+0.24 J 0.6 170 <5000 <0.5 7890 35.3 1800 <100 <0.1 57000 <1000 0.33 2.9 J 0.0882 0.5 MW-202D 5/10/2016 <10 0.21 J 0.56 0.15 <5000 <0.5 8470 36.2 1.9 <0.1 <0.1 84 NA 0.37 <10 0.386 0.5 MW-202D 9/21/2016 <10 0.26 J 1.3 550 <5000 <0.5 8500 42.3 1600 <100 <0.1 60000 <1000 0.64 <10 NA 0.5 MW-202D 11/17/2016 <10 0.22 J 0.48 J 180 <5000 <0.5 8340 39.2 1900 <100 <0.1 90000 NA 0.34 <10 0.9136 0.5 MW-202D 1/5/2017 NA <1 <5 NA 817 <1 8630 43 1700 NA <0.2 100000 NA 0.56 <5 NA NA MW-202D 1/25/2017 <10 0.34 J 0.96 180 <5000 <0.5 9040 42 1800 <100 <0.1 52000 NA 0.51 <10 NA 0.5 MW-202D 4/3/2017 <10 0.18 J <0.5 180 <5000 <0.5 8070 39.5 1600 <100 <0.1 73000 NA 0.43 J+<10 0.417 0.5 BG-2BR-A 4/12/2017 <10 1.4 20 32 <5000 <0.5 8640 78.3 9600 <100 <0.1 131000 ---0.64 J+<10 ---0.54 MW-202BR 7/16/2015 1.2 J+3.7 0.83 150 5150 0.44 J 12000 100 9600 <100 <0.1 133000 670 J 2.3 13 6.55 1.96 MW-202BR 10/2/2015 1.6 J+2.3 0.98 170 2700 J <0.5 10600 65 5300 <100 J <0.1 87000 <1000 0.82 J 41 J+------ MW-202BR 11/12/2015 1.9 J+2 9.4 150 J+2540 J <0.5 10100 59 5400 <100 <0.1 89000 <1000 0.71 J 22 ------ MW-202BR 12/16/2015 1.5 J+1.5 3.2 130 <5000 <0.5 9940 52 3900 <100 <0.1 101000 720 J 0.59 J 16 ------ MW-202BR 3/29/2016 1.6 J+1.2 0.68 120 <5000 <0.5 8860 37 4900 <100 <0.1 67000 10200 0.56 52.1 0.0151 0.095 MW-202BR 5/10/2016 <10 2.1 31 0.06 4190 J <0.5 10000 36.7 5 <0.1 <0.1 81 ---1.8 4 J 0.37 0.21 MW-202BR 9/21/2016 <10 0.73 1 130 <5000 <0.5 9520 35.4 3700 <100 <0.1 74000 <1000 0.55 <10 ---0.078 MW-202BR 11/17/2016 <10 0.67 0.54 130 <5000 <0.5 8940 35.1 3600 <100 <0.1 91000 ---0.46 <10 0.372 0.082 MW-202BR 1/25/2017 <10 0.7 1.8 150 <5000 <0.5 9780 38.5 3200 <100 <0.1 52000 ---0.7 6.7 J ---0.12 MW-202BR 4/4/2017 <10 0.81 0.67 J+160 J+<5000 <0.5 3590 J 37.8 3000 <100 <0.1 73000 ---0.48 4 J+0.466 0.065 Prepared by: JHG Checked by: ALA / LWD Notes: 54 - Indicates value omitted from dataset. --- - Indicates parameter not measured or analyzed. - Indicates data removed/identified as an outlier - Indicates data removed due to autocorrelation < - concentration not detected at or above the adjusted reporting limit. * - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L Standard, Appendix 1, April, 1, 2013. J - Laboratory estimated concentration. J- - Estimated concentration, biased low. J+ - Estimated concentration, biased high. ug - N/L - Micrograms nitrogen per liter NE - Not established NTU - Nephelometric turbidity unit pCi/L - picocuries per liter S.U. - Standard Unit ug/L - Micrograms per liter NA - Not applicable; sample not measured or analyzed Radium (Total) = Combined Radium-226 and Radium-228 Uranium (Total) = Combined Uranium-233, Uranium-234, Uranium-236, and Uranium-238 Bedrock Deep TABLE 10-2 GROUNDWATER PROVISIONAL BACKGROUND THRESHOLD VALUES BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC Shallow Deep Bedrock† pH*S.U.6.5-8.5 5.1 - 6.03 5.19 - 7.02 6.3 - 6.5 Alkalinity mg/L NE 22.9 63.7 81.3 Aluminum µg/L NE 860 140 100 Antimony µg/L 1∆1 1 0.5 Arsenic µg/L 10 1 1 0.51 Barium µg/L 700 58 12.6 6.2 Beryllium µg/L 4∆0.362 0.219 0.2 Bicarbonate mg/L NE 22.3 62.9 77.6 Boron µg/L 700 50 50 50 Cadmium µg/L 2 1 1 0.08 Calcium mg/L NE 3.69 13.2 10.3 Carbonate mg/L NE 5 5 5 Chloride mg/L 250 15 20.9 3 Chromium (VI)µg/L NE 1.75 0.411 0.33 Chromium µg/L 10 4.72 3.3 5.3 Cobalt µg/L 1∆0.509 1.6 0.76 Copper µg/L 1000 2.7 5 9.7 Iron µg/L 300 750 240 228 Lead µg/L 15 1 1 0.11 Magnesium mg/L NE 3.41 6.94 3.35 Manganese µg/L 50 22.9 13 9.9 Mercury µg/L 1 0.2 0.2 0.2 Methane µg/L NE 2.65 2.64 10 Molybdenum µg/L NE 1.00 1.3 3.7 Nickel µg/L 100 4.26 4.67 3.2 Nitrate + Nitrite mg-N/L NE 3.63 4.19 0.17 Potassium mg/L NE 5 5 5.15 Selenium µg/L 20 0.5 0.5 0.5 Sodium mg/L NE 5.92 10.7 12 Strontium µg/L NE 56.5 68.5 100 Sulfate mg/L 250 1.93 6.35 9.6 Sulfide mg/L NE 0.1 0.1 0.1 TDS mg/L 500 85 148 133 Thallium µg/L 0.2∆0.2 0.2 0.1 TOC mg/L NE 1 1 10.2 Vanadium µg/L 0.3∆1.33 1.45 0.82 Zinc µg/L 1000 10 43.2 16 Radium (Total)pCi/L NE 8.74 1.1 0.466 Uranium (Total)µg/mL NE 0.0005 0.0005 0.00054 Notes: Shallow background wells: BG-2S, BG-3S, MW-202S, and MW-3 Deep background wells: BG-1D, BG-2D, BG-3D, and MW-202D Bedrock background wells: BG-2BR-A and MW-202BR † - Indicates value is provisional; dataset contains less than 10 valid samples TDS - Total Dissolved Solids Radium (Total) - Radium-226 and Radium-228 combined Uranium (Total) - Uranium-233, Uranium-234, Uranium-236, and Uranium-238 combined S.U. - Standard Unit µg/L - micrograms per liter mg/L - milligrams per liter pCi/L - picocuries per liter µg/mL - micrograms per milliliter * - Upper and lower tolerance limits calculated for parameter ∆ - Interim Maximum Allowable Concentrations (IMACs) of 15A NCAC .02L Standard, Appendix 1, April 1, 2013 ND - Not Detected NE - Not Established Background Threshold Values NCAC 02L StandardReporting UnitParameter Prepared by: JHG Checked by: CDE / LWD P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 10-2 GW BG Threshold Values.xlsx Page 1 of 1 TABLE 10-3 STATE AND FEDERAL STANDARDS FOR COIS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\ Table 10-3 State and Federal Standards for COIs Page 1 of 1 Constituent NCAC 2L Groundwater Standard (µg/L) EPA Primary MCL (µg/L) EPA Secondary MCL (µg/L)IMAC (µg/L) Antimony -6 -1 Arsenic 10 10 -- Barium 700 200 -- Beryllium -4 -4 Boron 700 --- Cadmium 2 5 -- Chloride 250 -250 - Chromium 10 100 -- Hexavalent Chromium 10 --- Cobalt ---1 Iron 300 -300 - Manganese 50 -50 - Molybdenum ---- pH 6.5 - 8.5*-6.5 - 8.5*- Nickel 100 --- Selenium 20 50 -- Strontium ---- Sulfate 250,000 -250,000 - Thallium -2 -0.2 TDS 500,000 -500,000 - Vanadium ---0.3 Prepared by: ALA Checked by: ECW Notes: *Standard Units µg/L - micrograms per Liter Table 11-1. Private Well Sample Results Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Belews Creek Steam Station Page 1 of 2 Count 391 Count 577 Minimum (µg/L)0.5 Minimum (µg/L)0.5 Maximum (µg/L)13 Maximum (µg/L)20 Mean (µg/L)1.7 Mean (µg/L)1.8 Percentage of wells above MCL 0.51%Percentage of wells above MCL 0.69% Count 154 Count 245 Minimum (µg/L)50 Minimum (µg/L)50 Maximum (µg/L)50 Maximum (µg/L)50 Mean (µg/L)50 Mean (µg/L)50 Percentage of wells above MCL 0.00%Percentage of wells above MCL 0.00% Count 154 Count 245 Minimum (µg/L)0.5 Minimum (µg/L)0.5 Maximum (µg/L)0.5 Maximum (µg/L)5 Mean (µg/L)0.5 Mean (µg/L)0.6 Percentage of wells above MCL 0.00%Percentage of wells above MCL 0.00% Count 154 Count 245 Minimum (µg/L)5 Minimum (µg/L)0.5 Maximum (µg/L)80 Maximum (µg/L)5 Mean (µg/L)5.6 Mean (µg/L)0.6 Percentage of wells above MCL 0.00%Percentage of wells above MCL 0.00% Count 387 Count 575 Minimum (µg/L)25 Minimum (µg/L)25 Maximum (µg/L)33,970 Maximum (µg/L)27,270 Mean (µg/L)731.7 Mean (µg/L)602.4 Percentage of wells above SMCL 31.27%Percentage of wells above SMCL 24.00% Count 506 Count 584 Minimum (µg/L)2.5 Minimum (µg/L)2.5 Maximum (µg/L)49 Maximum (µg/L)115 Mean (µg/L)3.9 Mean (µg/L)3.6 Percentage of wells above SMCL 4.55%Percentage of wells above SMCL 2.40% Arsenic Concentrations in Stokes County Groundwater Arsenic Concentrations in Rockingham County Groundwater Cadmium Concentrations in Stokes County Groundwater Cadmium Concentrations in Rockingham County Groundwater Iron Concentrations in Stokes County Groundwater Iron Concentrations in Rockingham County Groundwater Barium Concentrations in Stokes County Groundwater Barium Concentrations in Rockingham County Groundwater Chromium Concentrations in Rockingham County Groundwater Chromium Concentrations in Rockingham County Groundwater Lead Concentrations in Stokes County Groundwater Lead Concentrations in Rockingham County Groundwater Table 11-1. Private Well Sample Results Source: HDR, Comprehensive Site Assessment Report Belews Creek Steam Station Ash Basin, September 9, 2015. Belews Creek Steam Station Page 2 of 2 Count 391 Count 577 Minimum (Standard Units)4.1 Minimum (Standard Units)4.6 Maximum (Standard Units)9.5 Maximum (Standard Units)9.2 Mean (Standard Units)6.9 Mean (Standard Units)7 Percentage of wells above SMCL 0.26%Percentage of wells above SMCL 0.35% Percentage of wells below SMCL 18.41%Percentage of wells below SMCL 16.98% Count 154 Count 245 Minimum (µg/L)2.5 Minimum (µg/L)2.5 Maximum (µg/L)25.3 Maximum (µg/L)26 Mean (µg/L)2.7 Mean (µg/L)2.7 Percentage of wells above MCL 0.00%Percentage of wells above MCL 0.00% pH of Stokes County Groundwater pH of Rockingham County Groundwater Selenium Concentrations in Stokes County Groundwater Selenium Concentrations in Rockingham County Groundwater TABLE 13-1 SUMMARY OF Kd VALUES FROM BATCH AND COLUMN STUDIES BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 13-1 Summary of Kd Values from Batch and Column StudiesTable 13-1 Summary of Kd Values from Batch and Column Studies Page 1 of 1 Arsenic Boron Cadmium Chromium Molybdenum Selenium Thallium Vanadium Trial - A 1982 1.0 87 1518 2197 3272 138 5861 Trial - B 1473 1.0 79 IDNA 4876 3450 135 IDNA Trial - A 2892 2.0 17 66 9318 3412 124 5024 Trial - B IDNA 2.0 18 IDNA IDNA 4274 133 IDNA Trial - A 1324 1.0 57 1518 2997 2298 129 5861 Trial - B 1296 1.0 57 IDNA 2771 2400 131 IDNA Trial - A 3561 2.0 16 1000 1385.6 1656 153 5024 Trial - B 3853 2.0 15 IDNA IDNA IDNA 156 IDNA Trial - A 17 IDNA 277 937 0.7 3.0 1676 23 Trial - B 17 IDNA 211 1518 1.0 3.0 1712 21 Trial - A 411 1.0 162 1518 49 157 198 1004 Trial - B 405 1.0 164 IDNA 48 162 206 976 Trial - A 8980 3.0 16 66 9318 5917 73 5024 Trial - B 8980 3.0 17 IDNA IDNA 4843 85 IDNA Trial - A 1064 1.0 18 1518 257 554 491 1116 Trial - B 1105 1.0 17 IDNA 175 462 524 876 Trial - A 414 1.0 58 1518 450 649 112 1081 Trial - B 435 IDNA 60 IDNA 453 651 119 IDNA Trial - A 328 1.0 103 220 52 137 121 77 Trial - B 270 1.0 87 IDNA 51 118 113 67 800.1 1.3 49.1 663.6 281.1 561.4 191.1 725.7 1105.0 1.0 57.5 1518.0 450.0 651.0 134.0 1042.5 405.0 1.0 17.0 220.0 50.0 157.0 119.5 74.5 1 Trial Only 675 15 175 -360 625 640 625 1 Trial Only 460 14 300 -400 500 440 600 1 Trial Only 725 15 675 -225 460 700 700 1 Trial Only 775 13 270 -260 490 900 700 1 Trial Only 30 -480 --25 550 25 1 Trial Only 75 -350 -50 85 430 190 1 Trial Only 520 18 500 -520 500 500 510 Trial A 700 15 675 -300 650 675 675 Trial B 675 15 650 -350 650 675 675 Trial C 600 15 600 -330 575 600 600 1 Trial Only 260 14 175 -100 190 290 290 1 Trial Only 125 -575 -45 170 600 275 333.3 14.8 408.0 -209.5 302.5 562.2 382.2 560.0 15.0 490.0 -300.0 495.0 600.0 600.0 158.8 14.0 277.5 -100.0 175.0 455.0 278.8 Prepared by: LWD Checked by: ALA Notes: - - No Data IDNA = isotherm datat not available Units reported in milliliters per gram (mL/g) Zero values were replaced with 1x10-30 to allow for geometric mean calculations. Only Kd values for constituents present in the test solution are presented in the table above. Column Kd values are from the Soil Sorption Evaluation Report (Langley, W.G. & Oza, S., 18 Nov. 2015). Batch sorption Kd values were taken from the linear isotherm (So = 0) values from the Addendum to Soil Sorption Evaluation (Langley, W.G. & Dongwook, K., 2 Feb. 2016). GWA-11D (10' BWT) Batch Study Sample Site and Depth (feet) AB-2D (75) AB-9S (45) BG-3S (40-42) GWA-2D (45) GWA-3D (54-56) GWA-5S (28-35) GWA-8S (28) GWA-5S (28-35) GWA-12 (25-27) MW-200BR (10' BWT) Geometric Mean Median Lower Quartile (exclusive) Column Study AB-2D (75) AB-9S (45) BG-3S (40-42) GWA-2D (45) GWA-3D (54-56) Geometric Mean Median Lower Quartile (exclusive) GWA-8S (28) GWA-11D (10' BWT) GWA-11D (10' BWT) GWA-11D (10' BWT) GWA-12 (25-27) MW-200BR (10' BWT) TABLE 15-1 GROUNDWATER INTERIM MONITORING PROGRAM ANALYTICAL METHODS BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 15-1 Groundwater Interim Monitoring Program Analytical Methods Page 1 of 1 PARAMETER RL UNITS METHOD pH NA SU Field Water Quality Meter Specific Conductance NA µS/cm Field Water Quality Meter Temperature NA ºC Field Water Quality Meter Dissolved Oxygen NA mg/L Field Water Quality Meter Oxidation Reduction Potential NA mV Field Water Quality Meter Eh NA mV Field Water Quality Meter Turbidity NA NTU Field Water Quality Meter Aluminum 0.005 mg/L EPA 200.7 or 6010D Antimony 0.001 mg/L EPA 200.8 or 6020B Arsenic 0.001 mg/L EPA 200.8 or 6020B Barium 0.005 mg/L EPA 200.7 or 6010D Beryllium 0.001 mg/L EPA 200.8 or 6020B Boron 0.05 mg/L EPA 200.7 or 6010D Cadmium 0.001 mg/L EPA 200.8 or 6020B Chromium 0.001 mg/L EPA 200.8 or 6020B Cobalt 0.001 mg/L EPA 200.8 or 6020B Copper 0.001 mg/L EPA 200.8 or 6020B Hexavalent Chromium 0.000025 mg/L EPA 218.7 Iron 0.01 mg/L EPA 200.7 or 6010D Lead 0.001 mg/L EPA 200.8 or 6020B Manganese 0.005 mg/L EPA 200.7 or 6010D Mercury 0.00005 mg/L EPA 245.1 Molybdenum 0.001 mg/L EPA 200.8 or 6020B Nickel 0.001 mg/L EPA 200.8 or 6020B Selenium 0.001 mg/L EPA 200.8 or 6020B Strontium 0.005 mg/L EPA 200.7 or 6010D Thallium (low level)0.0002 mg/L EPA 200.8 or 6020B Vanadium (low level)0.0003 mg/L EPA 200.8 or 6020B Zinc 0.005 mg/L EPA 200.7 or 6010D Radium 226 1 pCi/L EPA 903.1 Modified Radium 228 1 pCi/L EPA 904.0/SW846 9320 Modified Uranium (233, 234, 236, 238)Varies by isotope µg/mL SW846 3010A/6020B Total Uranium NA µg/mL Calculated Alkalinity (as CaCO3)5 mg/L SM 2320B Bicarbonate 5 mg/L SM 2320B Calcium 0.01 mg/L EPA 200.7 Carbonate 5 mg/L SM 2320B Chloride 0.1 mg/L EPA 300.0 or 9056A Magnesium 0.005 mg/L EPA 200.7 or 6010D Potassium 0.1 mg/L EPA 200.7 Sodium 0.05 mg/L EPA 200.7 Sulfate 0.1 mg/L EPA 300.0 or 9056A Sulfide 0.1 mg/L SM 4500 S2 D Total Dissolved Solids 25 mg/L SM 2540C Total Organic Carbon 0.1 mg/L SM5310C/EPA9060A Total Suspended Solids 5 mg/L SM 2450D Prepared by: HHS Checked by: MCM Notes: FIELD PARAMETERS INORGANICS RADIONUCLIDES ANIONS/CATIONS/OTHER NA indicates not applicable. TABLE 15-2 INTERIM MONITORING PROGRAM LIST BELEWS CREEK STEAM STATION DUKE ENERGY CAROLINAS, LLC, BELEWS CREEK, NC P:\Duke Energy Carolinas\20. BELEWS CREEK\CSA UPDATE OCT 2017\FINAL PDF\Tables\Table 15-2 Interim Monitoring Program ListTable 15-2 Interim Monitoring Program List Page 1 of 1 Wells to be Sampled Radionuclide Sample Requested (X) Wells to be Sampled Radionuclide Sample Requested (X) AB-1BR GWA-20D AB-1D GWA-20SA AB-1S GWA-21D AB-2D GWA-21S AB-2S GWA-22D AB-3D GWA-22S AB-3S GWA-23D AB-4BR1 GWA-23S AB-4BRD GWA-24BR AB-4D GWA-24D X AB-4S GWA-24S2 X AB-4SL1 GWA-25BR X AB-5D GWA-26BR X AB-5S GWA-26D X AB-5SL GWA-26S X AB-6D GWA-27BR AB-6S GWA-27D AB-6SL GWA-27S AB-7D GWA-2D AB-7S GWA-2S AB-8D GWA-30D X AB-8S GWA-30S X AB-8SL GWA-31D AB-9BR GWA-31S AB-9BRD GWA-32D AB-9D GWA-32S AB-9S GWA-3D BG-1D GWA-3S2 BG-1S2 X GWA-6D X BG-2BRA GWA-6S X BG-2D X GWA-7D X BG-2S X GWA-7SA X BG-3D GWA-8D X BG-3S GWA-8S X GWA-10DA GWA-9BR GWA-10S GWA-9D GWA-11D GWA-9S GWA-11S MW-104BR GWA-12BR MW-104D GWA-12D MW-104S GWA-12S MW-200BR X GWA-16BR MW-200D X GWA-16DA MW-200S X GWA-16S MW-201BR GWA-17D MW-201D GWA-17S MW-202BR GWA-18D MW-202D GWA-18SA MW-202S GWA-19BR MW-203BR GWA-19D MW-203D GWA-19SA MW-203S GWA-1BR X MW-204D GWA-1D X MW-204S GWA-1S X MW-3 X GWA-20BR Prepared by: ALA Checked by:ECW Notes:1 - Added by agreement with NCDEQ-WSRO 2 - Insufficient Volume noted by Duke on 7/19/17