NC0004979_FINAL_Allen_CSA_Tables_2018_20180130

2018 Comprehensive Site Assessment Update January 2018
Allen Steam Station SynTerra

TABLES

TABLE 2-1
WELL CONSTRUCTION DATA
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
IDENTIFICATION PROGRAM DATE INSTALLED STATUS MONITORING
ZONE FLOW LAYER NORTHING
(FEET)
EASTING
(FEET)
MEASURING POINT
TOC ELEVATION
(Feet- MSL)
CASING ADJUSTMENT
HEIGHT (FEET)
GROUND SURFACE
ELEVATION
(FEET- MSL)
TOTAL BORING
DEPTH
(FEET BGS)
TOTAL BORING
DEPTH
(FEET TOC)
SCREENED
INTERVAL (FEET)
TOP OF SCREEN
ELEVATION
(FEET- MSL)
BOTTOM OF
SCREEN ELEVATION
(FEET- MSL)
AB-01 Voluntary 9/29/2004 ABANDONED UNK UNK 529190.62 1396786.33 677.73 0.03 677.70 63.50 63.53 48.50 63.50 15.00 629.20 614.20
AB-01R NPDES 11/23/2010 Shallow Shallow 529135.90 1396854.00 675.86 2.29 673.57 71.00 73.29 51.00 71.00 20.00 622.57 602.57
AB-02 Voluntary 10/6/2004 Shallow Shallow 527194.33 1397478.40 638.74 3.04 635.70 19.00 22.04 4.00 19.00 15.00 631.70 616.70
AB-02D Voluntary 10/7/2004 Deep Transition Zone 527201.34 1397474.51 638.33 3.13 635.20 70.00 73.13 65.00 70.00 5.00 570.20 565.20
AB-04 UNK 10/1/2004 ABANDONED UNK UNK 525734.19 1396723.44 651.02 3.12 647.90 22.00 25.12 7.00 22.00 15.00 640.90 625.90
AB-04BR CAMA 12/22/2015 Bedrock Bedrock 525729.50 1396684.16 648.55 2.96 645.59 105.00 107.96 80.00 85.00 5.00 565.59 560.59
AB-04D NPDES 10/5/2004 Deep Transition Zone 525730.82 1396717.52 649.17 2.79 646.98 50.00 52.79 45.00 50.00 5.00 601.98 596.98
AB-04S NPDES 10/5/2004 Shallow Shallow 525732.00 1396724.00 650.46 2.52 647.94 24.90 27.42 12.42 27.42 15.00 635.52 620.52
AB-05 Voluntary 10/8/2004 Shallow Shallow 524016.81 1397760.44 677.02 2.92 674.10 42.00 44.92 27.00 42.00 15.00 647.10 632.10
AB-06A Voluntary 2/2/2005 Shallow Shallow 524632.37 1400457.32 579.30 2.00 577.30 34.50 36.50 31.22 34.22 3.00 546.08 543.08
AB-06R Voluntary 2/1/2005 Shallow Shallow 524621.45 1400454.55 579.90 2.10 577.80 41.00 43.10 36.80 39.80 3.00 541.00 538.00
AB-08 Voluntary 2/4/2005 ABANDONED UNK UNK 526937.21 1400483.88 590.25 2.65 587.60 35.00 37.65 29.55 34.55 5.00 558.05 553.05
AB-09D NPDES 11/17/2010 Deep Transition Zone 527134.60 1400632.00 582.73 2.40 579.73 121.00 123.40 110.00 115.00 5.00 464.80 459.80
AB-09S NPDES 11/18/2010 Shallow Shallow 527138.00 1400631.00 582.72 2.20 580.52 20.50 22.70 5.50 20.50 15.00 575.02 560.02
AB-10D NPDES 11/18/2010 Deep Transition Zone 524935.10 1400640.00 574.97 2.56 572.41 62.50 65.06 57.50 62.50 5.00 514.91 509.91
AB-10S NPDES 11/19/2010 Shallow Shallow 524935.40 1400636.00 575.05 2.40 572.61 18.00 20.40 3.00 18.00 15.00 569.61 554.61
AB-11D NPDES 11/19/2010 Deep Transition Zone 523285.10 1399060.00 618.07 2.68 615.39 20.40 23.08 15.00 20.00 5.00 600.39 595.39
AB-12D NPDES 11/30/2010 Deep Transition Zone 524231.40 1396540.00 651.75 2.04 649.71 96.00 98.04 91.00 96.00 5.00 558.71 553.71
AB-12S NPDES 12/2/2010 Shallow Shallow 524228.90 1396539.00 651.69 2.10 649.64 23.00 25.10 8.00 23.00 15.00 641.64 626.64
AB-13D NPDES 12/1/2010 Deep Transition Zone 526169.10 1397489.00 648.54 2.65 645.89 72.00 74.65 67.00 72.00 5.00 578.89 573.89
AB-13S NPDES 12/2/2010 Shallow Shallow 526178.50 1397490.00 648.72 2.74 645.98 21.00 23.74 6.00 21.00 15.00 639.98 624.98
AB-14BR CAMA 2/10/2016 Bedrock Bedrock 527214.08 1396714.36 642.20 3.30 638.90 130.00 133.30 90.00 95.00 5.00 548.90 543.90
AB-14D NPDES 11/22/2010 Deep Transition Zone 527206.50 1396717.00 641.80 2.44 639.36 29.60 32.04 19.30 29.30 10.00 620.06 610.06
AB-20D CAMA 3/25/2015 Deep Transition Zone 524964.84 1396758.69 649.27 2.70 646.57 141.00 143.70 125.00 130.00 5.00 521.57 516.57
AB-20S CAMA 3/25/2015 Shallow Ash Pore Water 524970.53 1396759.63 649.42 2.68 646.74 25.00 27.68 5.00 20.00 15.00 641.74 626.74
AB-21BR CAMA 5/4/2015 Bedrock Bedrock 524738.89 1398290.74 647.68 3.02 644.66 192.00 195.02 163.00 168.00 5.00 481.66 476.66
AB-21BRL CAMA 10/25/2016 Bedrock Bedrock 524738.61 1398284.00 647.59 3.19 644.4 236.7 239.89 223 228 5.00 421.40 416.40
AB-21D CAMA 4/11/2015 Deep Transition Zone 524739.11 1398296.52 647.57 2.87 644.70 151.00 153.87 143.00 148.00 5.00 501.70 496.70
AB-21S CAMA 4/4/2015 Shallow Ash Pore Water 524740.26 1398306.99 647.41 2.59 644.82 23.00 25.59 6.00 21.00 15.00 638.82 623.82
AB-21SL CAMA 4/3/2015 Shallow Ash Pore Water 524740.51 1398302.56 647.36 2.58 644.78 47.00 49.58 35.00 45.00 10.00 609.78 599.78
AB-22BR CAMA 9/19/2016 Bedrock Bedrock 524910.00 1400274.00 645.032 0.03 645 220 220.03 203 208 5.00 442.00 437.00
AB-22BRL CAMA 10/30/2017 Bedrock Bedrock 524897.51 1400273.37 UNK UNK 645.324 260 UNK 243 248 5.00 402.32 397.32
AB-22D CAMA 6/18/2015 Deep Transition Zone 524916.43 1400273.56 644.81 -0.30 645.11 172.00 171.70 160.00 165.00 5.00 485.11 480.11
AB-22S CAMA 6/18/2015 Shallow Shallow 524921.09 1400273.79 644.89 -0.27 645.16 100.00 99.73 85.00 100.00 15.00 560.16 545.16
AB-23BRU CAMA 4/8/2015 Deep Bedrock 525580.33 1398488.24 646.47 2.87 643.60 129.00 131.87 118.20 123.20 5.00 525.40 520.40
AB-23D CAMA UNK UNK UNK UNK UNK UNK UNK UNK UNK UNK UNK UNK UNK UNK UNK
AB-23S CAMA 3/31/2015 Shallow Ash Pore Water 525583.88 1398467.74 646.61 2.83 643.78 42.60 45.43 25.40 40.40 15.00 618.38 603.38
AB-24BR CAMA 10/14/2016 Bedrock Bedrock 526154.00 1398794.00 648.321 3.22 645.1 177.5 180.72 153 158 5.00 492.10 487.10
AB-24D CAMA 4/2/2015 Deep Transition Zone 526162.84 1398769.18 647.86 2.81 645.05 127.00 129.81 110.00 115.00 5.00 535.05 530.05
AB-24S CAMA 3/31/2015 Shallow Ash Pore Water 526175.48 1398769.28 647.86 2.97 644.89 22.00 24.97 5.00 20.00 15.00 639.89 624.89
AB-24SL CAMA 3/31/2015 Shallow Ash Pore Water 526169.17 1398769.43 647.92 2.90 645.02 37.00 39.90 25.50 35.50 10.00 619.52 609.52
AB-25BR CAMA 4/15/2015 Bedrock Bedrock 526171.41 1399445.35 647.11 2.72 644.39 157.70 160.42 140.00 145.00 5.00 504.39 499.39
AB-25BRU CAMA 3/24/2015 Deep Bedrock 526176.80 1399444.96 646.76 2.35 644.41 121.40 123.75 108.00 113.00 5.00 536.41 531.41
AB-25S CAMA 3/18/2015 Shallow Ash Pore Water 526187.94 1399446.45 647.22 2.76 644.46 20.00 22.76 5.00 20.00 15.00 639.46 624.46
AB-25SL CAMA 3/18/2015 Shallow Ash Pore Water 526182.95 1399446.13 646.97 2.52 644.45 49.50 52.02 30.00 45.00 15.00 614.45 599.45
AB-26D CAMA 6/26/2015 Deep Transition Zone 526169.32 1400299.86 643.42 -0.13 643.55 197.00 196.87 191.50 196.50 5.00 452.05 447.05
AB-26S CAMA 6/22/2015 Shallow Shallow 526162.31 1400297.16 643.32 -0.18 643.50 98.00 97.82 85.00 95.00 10.00 558.50 548.50
AB-27BR CAMA 10/19/2016 Bedrock Bedrock 526924.00 1399809.00 643.105 -0.39 643.5 189 188.61 183 188 5.00 460.50 455.50
AB-27D CAMA 4/13/2015 Deep Transition Zone 526924.04 1399826.60 643.24 -0.30 643.54 120.50 120.20 110.50 115.50 5.00 533.04 528.04
AB-27S CAMA 4/10/2015 Shallow Ash Pore Water 526924.00 1399819.36 643.25 -0.28 643.53 25.00 24.72 8.00 23.00 15.00 635.53 620.53
AB-28D CAMA 4/27/2015 Deep Transition Zone 526856.21 1399114.72 644.17 -0.15 644.32 164.50 164.35 158.00 163.00 5.00 486.32 481.32
AB-28S CAMA 4/10/2015 Shallow Ash Pore Water 526855.23 1399109.48 644.19 -0.16 644.35 20.00 19.84 5.00 20.00 15.00 639.35 624.35
AB-29D CAMA 4/30/2015 Deep Transition Zone 527156.38 1399802.12 620.46 -0.13 620.59 125.00 124.87 112.50 117.50 5.00 508.09 503.09
AB-29S CAMA 4/27/2015 Shallow Ash Pore Water 527157.39 1399812.91 620.46 -0.14 620.60 22.00 21.86 5.00 20.00 15.00 615.60 600.60
AB-29SL CAMA 4/26/2015 Shallow Ash Pore Water 527157.06 1399807.64 620.45 -0.14 620.59 48.00 47.86 36.00 46.00 10.00 584.59 574.59
AB-30D CAMA 4/9/2015 Deep Transition Zone 527093.69 1399073.65 621.38 -0.15 621.53 151.00 150.85 138.00 143.00 5.00 483.53 478.53
AB-30S CAMA 4/7/2015 Shallow Ash Pore Water 527093.94 1399081.26 621.21 -0.25 621.46 21.00 20.75 5.00 20.00 15.00 616.46 601.46
AB-31D CAMA 5/2/2015 Deep Transition Zone 527632.78 1400475.00 627.25 -0.18 627.43 145.00 144.82 131.00 136.00 5.00 496.43 491.43
AB-31S CAMA 4/23/2015 Shallow Shallow 527638.54 1400475.19 627.20 -0.20 627.40 75.00 74.80 58.00 73.00 15.00 569.40 554.40
AB-32D CAMA 5/13/2014 Deep Transition Zone 528139.15 1400491.68 624.40 -0.23 624.63 128.00 127.77 120.00 125.00 5.00 504.63 499.63
AB-32S CAMA 5/6/2015 Shallow Shallow 528145.19 1400492.08 624.34 -0.36 624.70 72.00 71.64 55.00 70.00 15.00 569.70 554.70
AB-33D CAMA 5/14/2015 Deep Transition Zone 528418.78 1399662.14 627.39 3.12 624.27 126.00 129.12 116.00 121.00 5.00 508.27 503.27
AB-33S CAMA 5/6/2015 Shallow Ash Pore Water 528412.71 1399660.97 627.00 3.04 623.96 40.00 43.04 20.00 35.00 15.00 603.96 588.96
AB-34D CAMA 3/16/2015 Deep Transition Zone 527985.77 1398800.76 632.93 -0.24 633.17 155.50 155.26 138.00 143.00 5.00 195.17 190.17
AB-34S CAMA 3/12/2015 Shallow Ash Pore Water 527978.64 1398800.46 632.88 -0.28 633.16 35.00 34.72 20.00 35.00 15.00 613.16 598.16
AB-35BR CAMA 2/25/2015 Bedrock Bedrock 527568.09 1398178.34 664.54 2.81 661.73 206.00 208.81 182.00 187.00 5.00 479.73 474.73
AB-35D CAMA 3/17/2015 Deep Transition Zone 527569.06 1398169.55 664.55 2.90 661.65 170.50 173.40 147.00 152.00 5.00 514.65 509.65
AB-35S CAMA 2/25/2015 Shallow Ash Pore Water 527569.89 1398175.10 664.47 2.85 661.62 72.00 74.85 35.00 50.00 15.00 626.62 611.62
AB-36D CAMA 6/23/2015 Deep Transition Zone 527601.00 1397268.43 626.68 2.66 624.02 107.00 109.66 93.00 98.00 5.00 531.02 526.02
AB-36S CAMA 6/23/2015 Shallow Shallow 527599.84 1397261.61 627.18 3.09 624.09 25.00 28.09 5.00 15.00 10.00 619.09 609.09
AB-37D CAMA 6/17/2015 Deep Transition Zone 527634.75 1396738.90 628.09 3.20 624.89 74.00 77.20 60.00 65.00 5.00 564.89 559.89
AB-37S CAMA 6/14/2015 Shallow Ash Pore Water 527637.90 1396742.38 628.01 3.13 624.88 20.00 23.13 3.00 18.00 15.00 621.88 606.88
AB-38BR CAMA 10/25/2017 Bedrock Bedrock 528666.00 1397551.00 634.133 3.23 630.9 126.8 130.03 101 106 5.00 529.90 524.90
AB-38D CAMA 5/20/2015 Deep Transition Zone 528656.29 1397550.45 634.41 3.09 631.32 75.50 78.59 67.70 72.70 5.00 563.62 558.62
AB-38S CAMA 5/20/2015 Shallow Ash Pore Water 528659.00 1397556.20 634.64 3.17 631.47 27.00 30.17 9.80 24.80 15.00 621.67 606.67
AB-39D CAMA 4/19/2015 Deep Transition Zone 527157.39 1399812.91 637.46 16.86 620.60 93.00 95.98 83.00 88.00 5.00 551.48 546.48
AB-39S CAMA 4/8/2015 Shallow Ash Pore Water 528645.78 1398373.98 637.47 3.05 634.42 50.00 53.05 30.00 45.00 15.00 604.42 589.42
BG-01D CAMA 5/7/2015 ABANDONED Deep Transition Zone 523296.60 1396799.34 694.93 3.00 691.93 135.70 138.70 114.38 119.38 5.00 569.55 564.55
BG-01DA CAMA 5/18/2017 Deep Transition Zone 523311.20 1396837.59 693.93 3.27 690.659 136 139.27 131 136 5.00 559.66 554.66
BG-01S CAMA 5/7/2015 Shallow Shallow 523304.49 1396799.30 695.13 2.75 692.38 65.50 62.75 49.00 64.00 15.00 652.40 637.40
BG-02BR CAMA 6/2/2015 ABANDONED Bedrock Bedrock 528793.92 1395229.00 644.48 3.04 641.44 155.00 158.04 135.00 140.00 5.00 506.44 501.44
BG-02BRA2 CAMA 5/18/2017 Bedrock Bedrock 528779.51 1395248.85 644.03 3.35 640.68 138 140.35 127 137 10.00 513.68 503.68
BG-02D CAMA 6/2/2015 Deep Transition Zone 528797.04 1395225.05 644.22 2.89 641.33 120.00 122.89 107.00 112.00 5.00 534.33 529.33
BG-02S CAMA 5/20/2015 Shallow Shallow 528799.49 1395218.22 644.31 2.90 641.41 70.00 72.90 53.00 68.00 15.00 588.41 573.41
BG-03D CAMA 3/10/2015 Deep Transition Zone 530292.81 1395436.71 674.44 2.45 671.99 112.50 114.95 93.00 98.00 5.00 578.99 573.99
BG-03S CAMA 3/11/2015 Shallow Shallow 530297.38 1395442.04 675.18 2.68 672.50 86.00 88.68 70.00 85.00 15.00 602.50 587.50
BG-04BR CAMA 1/8/2016 Bedrock Bedrock 530970.50 1397621.50 662.08 3.27 658.81 171.00 174.27 159.80 164.80 5.00 499.01 494.01
BG-04D CAMA 1/9/2016 Deep Transition Zone 530963.47 1397609.41 661.62 2.79 658.83 118.00 120.79 106.00 111.00 5.00 552.83 547.83
BG-04S CAMA 12/22/2015 Shallow Shallow 530960.01 1397600.37 662.19 3.20 658.99 94.00 97.20 78.10 93.10 15.00 580.89 565.89
CCR-01D CCR 4/4/2016 ABANDONED Deep Transition Zone 529059.94 1397729.96 UNK UNK 649.23 95.00 UNK 77.6 82.6 5.00 571.63 566.63
CCR-01DA CCR 2/9/2017 Deep Transition Zone 529034.66 1397708.76 UNK UNK 649.57 82.00 UNK 75.5 80.5 5.00 574.07 569.07
CCR-01S CCR 4/4/2016 Shallow Shallow 529056.33 1397723.47 UNK UNK 649.23 27.00 UNK 9.7 24.7 15.00 639.53 624.53
CCR-02D CCR 4/1/2016 Deep Transition Zone 529046.00 1398252.31 UNK UNK 640.94 130.00 UNK 118.2 123.2 5.00 522.74 517.74
CCR-02S CCR 3/31/2016 Shallow Shallow 529047.15 1398243.12 UNK UNK 640.60 25.00 UNK 9.4 24.4 15.00 631.20 616.20
CCR-03D CCR 4/26/2016 ABANDONED Deep Transition Zone 529121.39 1398706.63 UNK UNK 639.40 120.00 UNK 108 113 5.00 531.40 526.40
CCR-03DA CCR 2/10/2017 Deep Transition Zone 529121.37 1398681.63 UNK UNK 643.49 123.00 UNK 115 120 5.00 528.49 523.49
CCR-03S CCR 4/26/2016 Shallow Shallow 529123.07 1398699.53 UNK UNK 639.78 39.00 UNK 23 38 15.00 616.78 601.78
CCR-04D CCR 4/30/2016 ABANDONED Deep Transition Zone 528944.70 1399089.40 UNK UNK 621.67 148.50 UNK 134 139 5.00 487.67 482.67
CCR-04DA CCR 2/13/2017 Deep Transition Zone 528932.74 1399098.37 UNK UNK 624.30 134.00 UNK 129 134 5.00 495.30 490.30
CCR-04S CCR 4/30/2016 ABANDONED Shallow Shallow 528941.46 1399092.77 UNK UNK 621.41 22.00 UNK 6 21 15.00 615.41 600.41
CCR-04SA CCR 2/13/2017 Shallow Shallow 528947.18 1399085.14 UNK UNK 625.32 35.00 UNK 20 35 15.00 605.32 590.32
CCR-05D CCR 4/20/2016 Deep Transition Zone 528764.84 1399287.55 UNK UNK 613.95 131.50 UNK 119 124 5.00 494.95 489.95
CCR-05S CCR 4/20/2016 Shallow Shallow 528768.75 1399283.26 UNK UNK 613.99 27.00 UNK 11 26 15.00 602.99 587.99
CCR-06D CCR 4/15/2016 Deep Transition Zone 528560.56 1399604.38 UNK UNK 603.95 130.00 UNK 122 127 5.00 481.95 476.95
CCR-06S CCR 4/14/2016 Shallow Shallow 528560.65 1399596.97 UNK UNK 604.25 21.00 UNK 5 20 15.00 599.25 584.25
CCR-07D CCR 4/18/2016 Deep Transition Zone 528571.41 1399946.67 UNK UNK 593.31 135.00 UNK 129 134 5.00 464.31 459.31
CCR-07S CCR 4/19/2016 Shallow Shallow 528570.95 1399953.29 UNK UNK 593.14 20.00 UNK 5 20 15.00 588.14 573.14
CCR-08D CCR 4/23/2016 Deep Transition Zone 528581.53 1400201.34 UNK UNK 585.75 132.00 UNK 119 124 5.00 466.75 461.75
CCR-08S CCR 4/22/2016 Shallow Shallow 528581.62 1400206.65 UNK UNK 585.63 20.00 UNK 5 20 15.00 580.63 565.63
CCR-09D CCR 4/28/2016 Deep Transition Zone 528548.26 1400519.07 UNK UNK 581.03 97.00 UNK 90.4 95.4 5.00 490.63 485.63
CCR-09S CCR 4/29/2016 Shallow Shallow 528546.31 1400514.52 UNK UNK 580.81 20.00 UNK 5 20 15.00 575.81 560.81
CCR-11D CCR 5/6/2016 ABANDONED Deep Transition Zone 527886.90 1400655.41 UNK UNK 577.43 121.00 UNK 108 113 5.00 469.43 464.43
CCR-11DA CCR 2/21/2017 ABANDONED Deep Transition Zone 527869.85 1400637.54 UNK UNK 581.14 95.00 UNK 85 90 5.00 496.14 491.14
SCREENED INTERVAL (BGS)
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\Table 2-1 Well Construction Data Page 1 of 2
TABLE 2-1
WELL CONSTRUCTION DATA
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
IDENTIFICATION PROGRAM DATE INSTALLED STATUS MONITORING
ZONE FLOW LAYER NORTHING
(FEET)
EASTING
(FEET)
MEASURING POINT
TOC ELEVATION
(Feet- MSL)
CASING ADJUSTMENT
HEIGHT (FEET)
GROUND SURFACE
ELEVATION
(FEET- MSL)
TOTAL BORING
DEPTH
(FEET BGS)
TOTAL BORING
DEPTH
(FEET TOC)
SCREENED
INTERVAL (FEET)
TOP OF SCREEN
ELEVATION
(FEET- MSL)
BOTTOM OF
SCREEN ELEVATION
(FEET- MSL)
SCREENED INTERVAL (BGS)
CCR-11S CCR 5/5/2016 Shallow Shallow 527895.51 1400655.43 UNK UNK 577.34 23.00 UNK 6 21 15.00 571.34 556.34
CCR-14D CCR 4/12/2016 Deep Transition Zone 526574.07 1400462.64 UNK UNK 589.39 127.00 UNK 114 119 5.00 475.39 470.39
CCR-14S CCR 4/8/2016 Shallow Shallow 526579.04 1400462.67 UNK UNK 589.42 25.50 UNK 10 25 15.00 579.42 564.42
CCR-16D CCR 5/2/2016 Deep Transition Zone 525611.18 1400466.79 UNK UNK 581.83 73.00 UNK 67 72 5.00 514.83 509.83
CCR-16S CCR 4/28/2016 Shallow Shallow 525616.88 1400467.29 UNK UNK 581.69 26.00 UNK 10 25 15.00 571.69 556.69
CCR-17D CCR 5/3/2016 Deep Transition Zone 525215.37 1400443.27 UNK UNK 590.47 92.00 UNK 85 90 5.00 505.47 500.47
CCR-17S CCR 5/4/2016 Shallow Shallow 525210.20 1400443.24 UNK UNK 589.95 25.00 UNK 10 25 15.00 579.95 564.95
CCR-18D CCR 4/11/2016 Deep Transition Zone 524551.09 1400441.99 UNK UNK 582.13 194.00 UNK 180.4 185.4 5.00 401.73 396.73
CCR-18S CCR 4/11/2016 Shallow Shallow 524558.20 1400444.19 UNK UNK 581.64 21.00 UNK 5.6 20.6 15.00 576.04 561.04
CCR-20D CCR 5/5/2016 Deep Transition Zone 524227.95 1400156.93 UNK UNK 604.43 188.00 UNK 173.1 178.1 5.00 431.33 426.33
CCR-20S CCR 5/5/2016 Shallow Shallow 524227.56 1400166.81 UNK UNK 603.41 20.50 UNK 4.5 20.5 16.00 598.91 582.91
CCR-21D CCR 4/20/2016 Deep Transition Zone 524299.04 1399644.17 UNK UNK 647.67 158.00 UNK 138.8 143.8 5.00 508.87 503.87
CCR-21S CCR 4/20/2016 Shallow Shallow 524297.13 1399653.85 UNK UNK 648.05 30.00 UNK 14.8 29.8 15.00 633.25 618.25
CCR-22D CCR 5/13/2016 ABANDONED UNK UNK 523898.58 1399138.70 UNK UNK UNK 160 UNK 151.8 156.8 5.00 UNK UNK
CCR-22DA CCR 6/14/2016 Deep Transition Zone 523862.58 1399204.98 UNK UNK 650.04 167.00 UNK 158.2 163.2 5.00 491.84 486.84
CCR-22S CCR 5/11/2016 Shallow Shallow 523876.29 1399197.81 UNK UNK 650.22 32.70 UNK 16.5 31.5 15.00 633.72 618.72
CCR-23D CCR 5/24/2016 Deep Transition Zone 523617.39 1398719.23 UNK UNK 644.36 120.00 UNK 112.8 117.8 5.00 531.56 526.56
CCR-23S CCR 5/24/2016 Shallow Shallow 523618.86 1398724.88 UNK UNK 644.26 30.00 UNK 15 30 15.00 629.26 614.26
CCR-BG-01D CCR 5/14/2016 ABANDONED Deep Transition Zone 528298.41 1396645.28 661.17 3.00 658.17 124.50 127.38 119 124 5.00 535.79 530.79
CCR-BG-01S CCR 5/13/2016 Shallow Shallow 528291.79 1396663.62 660.37 3.00 657.37 55.50 54.98 24.8 39.5 15.00 617.39 602.39
CIF WELL UNK UNK UNK UNK UNK UNK UNK UNK UNK UNK UNK UNK UNK UNK UNK UNK
GWA-01BR CAMA 6/13/2015 Bedrock Bedrock 523655.00 1399520.45 629.37 3.65 625.72 135.00 138.65 116.00 121.00 5.00 509.72 504.72
GWA-01D CAMA 5/22/2015 Deep Transition Zone 523653.02 1399504.38 629.38 2.85 626.53 90.00 92.85 78.00 83.00 5.00 548.53 543.53
GWA-01S CAMA 5/20/2015 Shallow Shallow 523653.79 1399508.75 629.27 2.74 626.53 20.00 23.74 5.00 20.00 15.00 621.53 606.53
GWA-02D CAMA 6/10/2015 Deep Transition Zone 523815.05 1400345.47 579.66 3.09 576.57 134.50 137.59 117.30 122.30 5.00 459.27 454.27
GWA-02S CAMA 6/6/2015 Shallow Shallow 523812.22 1400353.25 579.36 3.21 576.15 27.20 30.41 9.70 24.70 15.00 566.45 551.45
GWA-03BR CAMA 5/11/2015 ABANDONED Bedrock Bedrock 526135.61 1400483.77 583.60 2.94 580.66 194.60 197.54 165.00 170.00 5.00 415.66 410.66
GWA-03BRA CAMA 5/22/2017 Bedrock Bedrock 526160.23 1400484.46 583.81 3.00 580.81 179 182.00 169 179 10.00 411.81 401.81
GWA-03D CAMA 4/28/2015 Deep Transition Zone 526121.37 1400483.88 580.30 -0.17 580.47 153.00 153.17 139.00 144.00 5.00 438.47 433.47
GWA-03S CAMA 4/24/2015 Shallow Shallow 526128.48 1400484.32 583.59 3.00 580.59 24.00 25.00 7.00 22.00 15.00 570.59 555.59
GWA-04BR CAMA 10/24/2016 Bedrock Bedrock 527577.14 1400642.17 580.02 3.00 577.02 151.1 154.10 144 149 5.00 433.02 428.02
GWA-04D CAMA 6/5/2015 Deep Transition Zone 527595.45 1400641.07 580.30 -0.15 580.45 99.30 99.45 92.00 97.00 5.00 485.45 480.45
GWA-04S CAMA 5/27/2015 Shallow Shallow 528165.11 1400654.44 580.32 3.00 581.30 21.00 24.00 4.00 19.00 15.00 573.54 558.54
GWA-05BR CAMA 6/6/2015 ABANDONED Bedrock Bedrock 528156.95 1400653.57 581.17 -0.10 581.27 165.00 164.90 133.50 138.50 5.00 447.77 442.77
GWA-05BRA CAMA 5/24/2017 Bedrock Bedrock 528128.16 1400645.99 581.18 3.00 578.18 140 143.00 135 140 5.00 443.18 438.18
GWA-05D CAMA 6/6/2015 Deep Transition Zone 528173.28 1400654.34 581.02 0.00 581.02 126.00 126.00 108.00 113.00 5.00 470.17 465.17
GWA-05S CAMA 5/15/2015 Shallow Shallow 528165.11 1400654.44 580.93 3.00 581.30 26.00 29.00 9.00 24.00 15.00 569.30 554.30
GWA-06BR CAMA 5/11/2015 ABANDONED Bedrock Bedrock 529035.85 1399117.10 628.14 -0.10 628.24 196.00 195.90 171.60 176.60 5.00 456.64 451.64
GWA-06BRA CAMA 10/26/2017 Bedrock Bedrock 529057.27 1399068.27 UNK UNK 629.48 190.00 UNK 185.00 190.00 5.00 444.48 439.48
GWA-06D CAMA 3/25/2015 ABANDONED Deep Transition Zone 529039.97 1399093.63 628.55 -0.30 628.85 145.00 144.70 118.40 123.40 5.00 510.45 505.45
GWA-06DA CAMA 1/12/2016 Deep Transition Zone 529014.07 1399138.73 630.16 2.67 627.49 126.00 128.67 119.00 124.00 5.00 508.49 503.49
GWA-06S CAMA 3/20/2015 Shallow Shallow 529041.79 1399102.80 628.35 -0.19 628.54 41.40 41.21 25.50 40.50 15.00 603.04 588.04
GWA-07D CAMA 3/16/2015 Deep Transition Zone 529487.89 1399021.00 594.27 2.58 591.69 145.80 148.38 132.00 137.00 5.00 459.69 454.69
GWA-07S CAMA 3/16/2015 Shallow Shallow 529478.47 1399022.18 595.05 2.65 592.40 31.00 33.65 15.00 30.00 15.00 577.40 562.40
GWA-08D CAMA 3/4/2015 Deep Transition Zone 529525.30 1397773.72 676.66 3.08 673.58 130.00 133.08 119.50 124.50 5.00 554.08 549.08
GWA-08S CAMA 3/4/2015 Shallow Shallow 529520.38 1397781.30 676.88 3.45 673.43 80.00 83.45 43.00 58.00 15.00 630.43 615.43
GWA-08SA CAMA 6/19/2015 UNK UNK 529530.38 1397776.26 UNK UNK 673.43 78.00 UNK 60.00 75.00 15.00 613.43 598.43
GWA-09BR CAMA 10/26/2017 Bedrock Bedrock 525016.22 1396556.67 648.04 3.00 645.04 173.2 176.20 141 146 5.00 504.04 499.04
GWA-09D CAMA 5/21/2015 Deep Transition Zone 525022.91 1396566.40 647.65 3.26 644.39 120.00 123.26 108.00 113.00 5.00 536.39 531.39
GWA-09S CAMA 5/12/2015 Shallow Shallow 525017.56 1396564.56 647.56 2.93 644.63 24.00 26.93 6.00 21.00 15.00 638.63 623.63
GWA-14D CAMA 6/13/2015 ABANDONED Deep Transition Zone 526981.04 1396843.66 653.21 -0.30 653.51 139.70 139.40 109.00 114.00 5.00 544.51 539.51
GWA-14DA CAMA 4/26/2017 Deep Transition Zone 526978.72 1396799.88 654.05 -0.01 654.06 110 108.99 104 109 5.00 550.06 545.06
GWA-14S CAMA 6/11/2015 Shallow Shallow 526979.86 1396838.78 653.57 -0.23 653.80 35.00 34.77 19.00 34.00 15.00 634.80 619.80
GWA-15D CAMA 6/13/2015 Deep Transition Zone 527474.29 1396447.25 633.27 -0.22 633.49 95.00 94.78 84.50 89.50 5.00 548.99 543.99
GWA-15S CAMA 6/11/2015 Shallow Shallow 527479.25 1396447.37 632.71 -0.34 633.05 32.00 31.66 17.00 32.00 15.00 616.05 601.05
GWA-16D CAMA 1/13/2016 Deep Transition Zone 528364.62 1395094.09 656.06 3.49 652.57 115.00 118.49 98.00 108.00 10.00 554.57 544.57
GWA-16S CAMA 1/13/2016 Shallow Shallow 528357.34 1395093.94 656.59 3.22 653.37 60.00 63.22 45.00 60.00 15.00 608.37 593.37
GWA-17D CAMA 1/6/2016 Deep Transition Zone 529317.17 1396760.13 681.72 2.38 679.34 135.00 137.38 115.00 125.00 10.00 564.34 554.34
GWA-17S CAMA 1/5/2016 Shallow Shallow 529317.36 1396751.17 681.89 1.71 680.18 85.00 86.71 70.00 85.00 15.00 610.18 595.18
GWA-18D CAMA 1/8/2016 Deep Transition Zone 528931.83 1397092.97 651.14 2.54 648.60 100.00 102.54 87.00 92.00 5.00 561.60 556.60
GWA-18S CAMA 1/9/2016 Shallow Shallow 528920.91 1397092.75 651.04 2.66 648.38 71.00 73.66 55.00 70.00 15.00 593.38 578.38
GWA-19D CAMA 3/23/2016 Deep Transition Zone 527930.65 1395847.31 669.95 -0.27 670.22 135.00 134.73 125.20 130.20 5.00 545.02 540.02
GWA-19S CAMA 3/24/2016 Shallow Shallow 527926.76 1395859.19 669.85 -0.13 669.98 58.00 57.87 42.00 57.00 15.00 627.98 612.98
GWA-21BR CAMA 6/6/2016 Bedrock Bedrock 526327.23 1396469.18 671.74 -0.33 672.07 237.00 236.67 202.00 207.00 5.00 470.07 465.07
GWA-21D CAMA 2/16/2016 ABANDONED Deep Transition Zone 526268.14 1396494.45 671.31 3.00 668.31 179.60 182.60 177.50 182.50 5.00 490.81 485.81
GWA-21DA CAMA 5/16/2017 Deep Transition Zone 526260.06 1396480.14 670.02 3.00 667.02 179.00 182.00 174 179 5.00 493.02 488.02
GWA-21S CAMA 2/9/2016 Shallow Shallow 526294.42 1396471.50 671.24 3.00 668.24 34.88 37.88 22.88 37.88 15.00 645.36 630.36
GWA-22D CAMA 1/19/2016 Deep Transition Zone 526669.77 1397525.17 665.29 2.80 662.49 186.00 188.80 177.20 182.20 5.00 485.29 480.29
GWA-22S CAMA 1/20/2016 Shallow Shallow 526666.07 1397528.08 665.14 2.77 662.37 45.00 47.77 22.10 37.10 15.00 640.27 625.27
GWA-23D CAMA 1/21/2016 Deep Transition Zone 525594.79 1397401.71 669.26 2.88 666.38 83.00 85.88 77.00 82.00 5.00 589.38 584.38
GWA-23S CAMA 1/19/2016 Shallow Shallow 525605.71 1397401.93 670.09 3.05 667.04 37.50 40.55 20.00 35.00 15.00 647.04 632.04
GWA-24BR CAMA 3/14/2016 Bedrock Bedrock 524969.36 1396115.76 675.45 -0.11 675.56 169.50 169.39 160.60 165.50 4.90 514.96 510.06
GWA-24D CAMA 2/29/2016 Deep Transition Zone 524991.19 1396116.20 675.48 -0.05 675.53 135.00 134.95 123.00 128.00 5.00 552.53 547.53
GWA-24S CAMA 3/1/2016 ABANDONED Shallow Shallow 524980.27 1396115.98 675.35 -0.33 675.68 39.00 38.67 22.50 37.50 15.00 653.18 638.18
GWA-24SA CAMA 10/31/2017 Shallow Shallow 524957.20 1396116.89 UNK UNK 675.80 48.00 UNK 33.00 48.00 15.00 642.80 627.80
GWA-26D CAMA 1/26/2016 Deep Transition Zone 523773.28 1396934.29 683.12 2.85 680.27 127.00 129.85 112.00 127.00 15.00 568.27 553.27
GWA-26S CAMA 1/27/2016 Shallow Shallow 523773.28 1396934.29 683.10 2.94 680.16 67.50 70.44 42.50 67.50 25.00 637.66 612.66
PH WELL UNK UNK UNK UNK 524243.25 1399678.70 UNK UNK UNK UNK UNK UNK UNK UNK UNK UNK
Prepared by: LWD Checked by: EMY
Notes:
NA - Not Applicable TOC - Top of Casing "Boring Depth" is the total depth of soil boring
MSL - Mean Sea Level PVC - Polyvinyl chloride * - Estimated until the well is remeasured
NM - Not Measured UNK - Data not known
BGS - Below Ground Surface
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\Table 2-1 Well Construction Data Page 2 of 2

TABLE 2-2
NPDES GROUNDWATER MONITORING REQUIREMENTS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015. Page 1 of 1

Well
Nomenclature Constituents and Parameters Frequency
Monitoring Wells:
AB-1R, AB-4S,
AB-4D, AB-9S*,
AB-9D*, AB-10S*,
AB-10D*, AB-11D,
AB-12S, AB-12D,
AB-13S, AB-13D,
AB-14D
Antimony Chromium Nickel Thallium

March, July,
November
Arsenic Copper Nitrate Water Level
Barium Iron pH Zinc
Boron Lead Selenium
Cadmium Manganese Sulfate
Chloride Mercury TDS

Note:
* Monitoring wells located inside of the compliance boundary.

Table 2-3. Summary of Onsite Environmental Incidents

Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015.

Allen Steam Station
Page 1 of 3
Incident # Date Location
of Incident
Impacted Media Brief Description Status
TBD 7/9/2015 Ash basin between
cells 2&3
Soil/ash <1 quart of fluid was
released from a
radiator hose on a
front end loader
Closed, category 3
140166 7/8/2015 EES chemical
addition skid
None/ in
containment
10 gallons of calcium
carbonate leaked
from a cracked fitting
Closed, category 3
448046 6/30/2015 Urea unloading
area
None/asphalt 5 gallons of urea was
spilled during
unloading
Closed, category 3
139821 6/23/2015 Ash basin east dike Soil < 1 pint of hydraulic
fluid leaked from a
well drilling rig
Closed, category 3
139758 6/14/2015 1T1 transformer Soil An oil leak from 1T1
transformer leaked
non PCB oil onto
nearby soil
Closed, category 3
137613 4/24/2015 FGD WWT None/ in
containment
<2 gallons of
hydrochloric acid was
released to
containment due to
leaking pump fitting
Closed, category 3
126288 9/2/2014 Plant intake and
NPDES outfall 004
Waters of the US Oil sheen was
observed at the plant
intake area and
NPDES outfall 004
NRC & NCDENR
notified
120533 5/13/2014 Unit 3 transformer None/ in
containment
Transformer
overheated and
spilled oil to
containment area
with some non PCB
oil getting to the oil
trap tank for this
equipment.
Closed
111644 12/23/2013 CCR Industrial
Landfill/RAB cell 1
Soil/groundwater A significant rainfall
event caused a
release of waste
material in RAB cell 1
due to south slope
failure
NCDENR notified
108305 10/14/2013 Industrial
Landfill/RAB cell 1
Soil/groundwater A release of waste
material beyond the
edge of the liner on
western side slope
NCDENR notified
105416 9/3/2013 Ash basin area soil
& sedimentation
basin
Soil/groundwater Approx. 20,000
gallons of waste
water spilled to the
soil & sedimentation
basin due to ash line
leak (bottom ash).
NCDENR notified
Table 2-3. Summary of Onsite Environmental Incidents

Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015.

Allen Steam Station
Page 2 of 3
Incident # Date Location
of Incident
Impacted Media Brief Description Status
101936 7/10/2013 Unit 4 A Main
Transformer
None/in
containment
Approx. 40-50
gallons of non PCB
oil was released
when the transformer
overheated. All
release to
containment and oil
trap tank
Closed
98095 4/9/2013 Station NOV, unit 5 Title V Air Permit Actual exceedance
occurred on 11/2/12
due to 7, six minute
opacity blocks that
were not excused as
shutdown or
malfunction.
NOV issued
96197 3/15/2013 CCW Discharge
Canal
Waters of the US A large sink hole
developed in the
upslope of the CCW
discharge canal
resulting off site
sedimentation to the
lake.
NCDENR notified
91063 2/12/2013 Plant Intake and
NPDES outfall 004
Waters of the US Oil spill from 3A river
screen reduction
gear drain line.
NRC & NCDENR
notified
90948 2/5/2013 Ash basin NPDES
outfall 002
Waters of the US Total iron daily
maximum limit was
exceeded. Limit is
1.58 mg/L and
sample results for
2/5/13 was 1.64
mg/L.
NOV issued
88058 2005 At construction
areas for FGD
system near
previous 100,000
gal fuel oil AST
Soil Surface soil
contamination
detected, sampled
and reported during
FGD
construction. Below
Action levels
Closed
87992 1/3/2013 Plant intake and
NPDES outfall 004
Waters of the US Oil spill from 3A river
screen reduction
gear drain line.
NRC & NCDENR
notified
75736 6/17/2012 Station property
south of CY/YD
pump area
Waters of the US CY/YD sump
discharge line
cleanout port failed
resulting in release of
approx. 2000 gallons
of waste water to
Catawba river.
NCDENR notified
64689 11/21/2011 Unit 3 Permit non
compliance, Failure
to meet permit
condition
Title V Air Permit SNCR with urea
injection was in
service and should
not have
been(11/21,11/22,11/
NCDENR notified
Table 2-3. Summary of Onsite Environmental Incidents

Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015.

Allen Steam Station
Page 3 of 3
Incident # Date Location
of Incident
Impacted Media Brief Description Status
28) during boiler
chemical cleaning
waste(EDTA)
evaporation.
57719 9/25/2011 Landfill cell 1B Soil/groundwater Release of material
from 1B landfill cell
due to heavy rain
vent. Material
reached nearby
access road and non
contact storm water
basin.
NCDENR notified.
55707 8/17/2011 South Point Road
just outside of
station perimeter
None SEFA gypsum
hauling truck was
releasing dust from it.
It had not been
properly washed
prior to leaving
station. Neighbor
complaint.
Closed
18137 1997 Near 550 gallon
gasoline AST near
coal handling
Soil/
Groundwater
Gasoline leak from
dispenser piping
area from past UST.
Open. Groundwater
monitoring active
11186 1993 Between Units 4&5
Fan Room
Soil/Groundwater Fuel oil from
recirculation pipe to
light-off tank. Tank
closed. Significant
free product
recovered.
Open. Total fluids
recovery active with
groundwater sampling
and reporting
continuing

Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015.
Allen 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 3-2. Soil/Material Properties for Ash, Fill, Alluvium, and Soil/Saprolite
Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015.ALLEN STEAM STATION
Page 1 of 1
Plastic Limit (PL)Liquid Limits (LL)Plasticity Index
(PI)Coarse7 Fine8 Coarse9 Medium10 Fine11 Silt12 Clay13
AB-20D UD 75-76.5 Grey-White Silty Sand SM 2.740 14.8 NP NV NP 0.0 0.0 0.4 24.2 47.2 26.0 2.2 31.9%29.0%9.68E-05 M2
AB-20S UD-1 3-4.5 Fly Ash SM 2.239 31.0 NP NV NP 0.0 1.9 5.7 16.6 34.8 34.9 6.1 51.9%-2.79E-04 F/A
AB-20S UD 24-26 Red-Brown Sandy Fat Clay CH 2.716 28.5 30 60 30 0.0 0.0 0.5 21.7 22.3 15.8 39.7 44.9%23.0%4.45E-07 M1
AB-21D Jar 8.5-10 Fly Ash --38.6 ---0.0 0.0 0.5 1.9 12.7 67.0 17.9 -7.0%-A
AB-21D UD 20-22 Fly Ash ML 2.156 40.0 NP NV NP 0.0 0.4 0.1 0.4 4.7 74.8 19.6 46.9%4.5%2.04E-05 A
AB-21D UD 62-64 Tan-Brown Silty Sand SM 2.607 21.9 28 41 13 0.0 0.0 10.1 36.6 22.5 21.9 8.9 36.9%22.5%3.60E-06 M1
AB-22D UD 23-25 Red-Brown Micaceous Sandy Silt ML 2.663 -36 49 13 0.0 0.1 0.7 20.5 25.5 26.2 27.0 -5.0%-F
AB-22D UD 60-62 Brown Micaceous Sandy Silt ML 2.691 20.6 39 42 3 0.0 0.1 1.8 21.9 23.2 38.1 14.9 41.9%14.5%8.23E-07 F
AB-25BR UD-1 31-33 Fly Ash SM 1.945 57.8 NP NV NP 0.0 23.9 7.3 12.4 36.7 15.5 4.2 58.5%30.0%1.52E-04 A
AB-25BR UD-2 48-50 Orange-Brown Silty Sand SM 2.670 17.6 33 46 13 0.0 5.4 8.4 57.2 12.3 6.9 9.8 33.3%25.0%1.86E-05 S
AB-25BR UD 73-75 Grey-White Silty Sand SM 2.723 13.2 NP NV NP 0.0 0.0 2.8 33.4 43.3 16.7 3.8 28.7%30.0%1.49E-04 M2
AB-25SL Jar 23-24.5 Fly Ash --39.5 ---0.0 0.0 0.1 0.8 8.7 81.0 9.4 -7.5%-A
AB-26D UD 43-45 Red-Brown Micaceous Sandy Silt ML 2.676 25.2 44 45 1 0.0 0.0 1.2 18.9 22.3 42.1 15.5 42.5%13.5%9.68E-07 F
AB-26D UD 103-105 Olive-Brown Silt with Sand ML 2.810 38.6 42 43 1 0.0 0.0 0.0 0.6 21.4 72.4 5.6 52.5%13.5%1.36E-05 M1
AB-27D UD-1 28.5-30.5 Red-Brown Sandy Fat Clay CH 2.643 22.4 34 71 37 0.0 4.8 2.5 11.8 19.9 14.4 46.6 36.9%-4.23E-06 F
AB-29D Jar 25-26.5 Fly Ash --39.8 ---0.0 0.0 0.4 1.1 11.1 81.0 6.4 -9.0%-A
AB-29D Jar 60-61.5 Tan-Brown Silty Sand --16.8 ---0.0 0.0 2.3 25.1 37.5 29.0 6.1 -24.5%-M1
AB-31D UD 48.5-50.5 Red-Brown Sandy Fat Clay CH 2.675 27.9 29 64 35 0.0 0.2 0.2 10.3 29.0 13.5 46.8 43.5%-2.22E-07 S
AB-32S UD 15-17 Red-Brown Sandy Elastic Silt MH 2.647 26.2 33 66 33 0.0 2.3 1.7 10.1 23.0 11.8 51.1 40.9%-1.73E-06 F
AB-32S UD 50-52 Red-Brown Sandy Fat Clay CH 2.651 28.1 28 54 26 0.0 0.0 0.0 1.4 43.7 20.7 34.2 43.3%-2.08E-06 F
AB-33D Jar 48.5-50 Tan-Brown Silty Sand --37.3 ---0.0 0.0 0.1 20.1 30.7 44.5 4.6 -22.0%-M1
AB-34D Jar 4.5-5 Fly Ash --22.3 ---0.0 0.9 1.8 8.6 28.6 47.5 12.6 -15.0%-A
AB-34S Jar 33-35 Tan-Brown Sandy Elastic Silt MH 2.659 34.4 31 54 23 0.0 0.3 1.2 21.7 25.8 23.9 27.1 -5.0%-M1
AB-35D Jar 58.5-60 Orange-Brown Sandy Elastic Silt --24.5 ---0.0 0.0 0.3 20.1 26.2 25.1 28.3 -4.8%-M1
AB-35D Jar 106-107.5 Tan-Brown Micaceous Silty Sand --11.2 ---0.0 0.9 5.0 40.3 27.8 23.4 2.6 -30.0%-M2
AB-35S UD-1 18-20 Fly Ash ML 2.419 36.2 NP NV NP 0.0 0.7 0.1 0.4 19.5 76.3 3.0 52.7%14.0%2.92E-05 F/A
AB-35S UD-2 58-60 Grey-Brown Sandy Fat Clay CH 2.628 25.3 33 72 39 0.0 0.0 0.1 16.0 19.7 12.2 52.0 40.0%-1.20E-06 A/M1
AB-35S UD-3 68-70 Orange-Brown Clayey Sand SC 2.641 24.8 26 57 31 0.0 4.4 0.8 23.9 27.0 7.7 36.2 41.0%-6.84E-07 M1
AB-35S Jar 72 Grey-Brown Clayey Sand SC 2.532 36.6 24 41 17 0.0 2.4 1.3 21.2 25.2 27.2 22.7 -8.0%-M1
AB-36D UD-1 10-12 Fly ash SM 2.053 34.1 NP NV NP 0.0 10.3 16.0 19.2 39.8 14.0 0.7 56.5%34.8%3.29E-04 M1
AB-36D UD-2 30-32 Brown-White Silty Sand SM 2.766 16.8 NP 32 NP 0.0 1.9 7.3 25.0 21.8 38.6 5.4 33.3%22.5%1.88E-06 M1
AB-36S UD 23-25 White-Brown Sandy Silt ML 2.782 17.8 33 35 2 0.0 0.1 1.2 19.2 29.1 46.8 3.6 36.2%22.5%7.63E-06 M1
AB-38D UD 0-2 Fly Ash SM 2.095 30.0 NP NV NP 0.0 4.4 11.9 13.6 41.3 27.6 1.2 57.8%30.0%5.35E-04 A
BG-2BR Jar 53.5-55 Whitish-Grey Silty Sand --25.5 ---0.0 0.0 0.6 16.4 38.8 37.5 6.7 -23.5%-M1
BG-2BR Jar 73.5-75 Whitish-Grey Silty Sand --17.0 ---0.0 0.0 2.1 25.8 39.2 27.0 5.9 -25.0%-M2
GWA-1D Jar 48.5-50 Olive-Brown Sandy Silt --23.7 ---0.0 0.0 0.4 2.0 33.3 57.8 6.5 -17.5%-M1
GWA-1D Jar 58.5-60 White-Grey Sandy Silt --20.1 ---0.0 0.0 0.0 1.1 35.2 56.4 7.3 -17.0%-M2
GWA-1S UD 18-20 Orange-Brown Clayey Sand SC 2.628 18.2 20 30 10 0.0 0.0 0.4 22.0 38.1 19.3 20.2 35.5%11.0%3.06E-05 M1
GWA-3D Jar 13.5-15 Brown Silty Sand --39.6 ---0.0 0.0 0.3 31.5 29.3 30.8 8.1 -22.0%-S
GWA-3D Jar 33.5-35 Brown Sandy Silt --30.2 ---0.0 0.0 0.0 1.2 19.1 72.1 7.6 -12.0%-M1
GWA-3D Jar 88.5-90 Grey-White Silty Sand --16.3 ---0.0 0.0 12.3 64.7 15.7 6.8 0.5 -40.0%-M2
GWA-3S UD 22-24 Brown Micaceous Silty Sand SM 2.661 32.2 34 42 8 0.0 7.1 3.2 29.2 30.0 28.1 2.4 45.9%28.5%4.24E-05 S
GWA-4D Jar 43-45 Brown-White Silty Sand --19.6 ---0.0 0.0 7.4 34.7 29.2 22.1 6.6 -26.0%-M1
GWA-4S Jar 19-20 Red-Brown Micaceous Silty Sand --23.2 ---0.0 3.3 2.2 22.5 26.4 24.2 21.4 -10.0%-F/S
GWA-5D Jar 53.5-55 Olive-Brown Clayey Sand with Gravel --43.3 ---0.0 32.4 9.8 4.0 12.8 31.2 9.8 -19.5%-S
GWA-5S UD 24-26 Brown Micaceous Silty Sand SM 2.696 35.6 NP 42 NP 0.0 0.0 0.3 19.7 33.6 35.5 10.9 49.4%18.5%6.35E-06 F
GWA-6D UD 18.5-20.5 Red-Brown Silty Sand SM 2.653 38.9 32 44 12 0.0 0.0 0.1 20.0 37.3 32.5 10.1 52.4%19.5%1.98E-04 M1
GWA-6D Jar 58.5-60 Olive-Brown Micaceous Sandy Silt --28.4 ---0.0 0.1 1.7 19.2 21.6 48.8 8.6 -18.0%-M1
GWA-6D Jar 88.5-89.3 Grey-White Silty Sand --15.1 ---0.0 0.0 0.4 18.4 46.9 29.8 4.5 -26.0%-M2
GWA-7S UD 28-30 Red-Brown Silty Sand SM 2.698 32.3 35 47 12 0.0 0.0 0.1 21.8 30.9 36.4 10.8 47.9%18.0%5.67E-06 M1
GWA-8S UD 20-22 Red-Brown Silty Sand SM 2.678 23.2 33 43 10 0.0 0.0 0.1 24.4 27.7 37.6 10.2 48.1%18.5%1.61E-04 M1
GWA-8S UD 73-75 Olive-Grey Micaceous Sandy Silt ML 2.737 19.9 29 37 8 0.0 0.0 0.0 2.7 45.7 46.9 4.7 34.4%21.5%1.11E-05 M1
GWA-9S UD 19-21 Brown-White Silty Sand SM 2.745 31.8 NP 38 NP 0.0 0.0 0.4 19.8 38.9 36.5 4.4 49.0%24.5%1.22E-04 M1
SB-3 Jar 18.5-20 Fly Ash --47.2 ---0.0 0.1 0.0 0.4 11.9 83.3 4.3 -9.0%-A
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. BG-2BR samples represented as BG-2D on geotechnical lab reports.
15. All columns directly derived from laboratory analyses except "Estimated Specific Yield/Effective Porosity".
16. Effective porosity and specific yield are not synonymous. For practical purposes, they may be estimated as approximately equal in value.
HydrostratigraphyBoreholeTotal Porosity2 (%)Specific Gravity2Material DescriptionSample #
Grain Size5
Atterberg Limits4 Vertical Hydraulic
Conductivity6, kv20,
(cm/sec)
Natural Moisture
Content3 (%)USCS1Depth (ft)% Fines% Sand% Gravel Estimated Specific
Yield/Effective
Porosity15
TABLE 3-3
REGIONAL BACKGROUND SOIL SPLP DATA
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\Table 3-3 Background SPLP TableTable 3-3 Background SPLP Table Page 1 of 1
pH Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chloride Chromium (VI)Chromium Cobalt Copper Iron Lead Magnesium Manganese Mercury Molybdenum Nickel Nitrate (as
N)Nitrate Potassium Selenium Silver Sodium Strontium Sulfate Thallium Tin Vanadium Zinc Cr(III)
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 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
6.5-8.5 NE 1*10 700 4*700 2 NE 250 10 10 1*1000 300 15 NE 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 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+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 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 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 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 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 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 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 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 (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 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-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 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 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 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 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 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 (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 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 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 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-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 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 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 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 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 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-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 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 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 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 (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 NA <500 <25 <25 5.4 j <10 <250 j <4 <2 <6.2 NA <25 <25 <50 <2500 <5 <0.5 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 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-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 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-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 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 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 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-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 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+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: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)- 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.< - 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 above the adjusted method detection limit and below the adjusted reporting limit.
J- - Estimated concentration, biased low.J- - Estimated concentration, biased low.
M1 - Matrix spike recovery was high: the associated Laboratory Control Spike (LCS) was acceptable.M1 - Matrix spike recovery was high: the associated Laboratory Control Spike (LCS) was acceptable.
NA - Not analyzed NA - Not analyzed
* - Interim Maximum Allowable Concentrations (IMACs) of 15A NCAC .02L Standard, Appendix 1, April 1, 2013
NC2L Standard
Reporting Units
Analytical Parameter Analytical Parameter
Reporting Units
NC2L Standard
Analytical Results
Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015. Allen Steam Station
Page 1 of 1
Table 6-1. Soil Mineralogy Results
Boring ID Lab
Performing
Analysis
Unique
Lab
Identifier
Sample
Depth (ft
bgs)
Soil Mineralogical Composition (wt %)
Quartz Feldspars K-
Feldspar
Plagioclase Illite Muscovite/
Illite
Kaolinite Biotite Dolomite Amphibole Epidote Tremolite Vermiculite Goethite Zeolite Amorphous
AB-34S American Assay AL-01 33.0-35.0 43.1 - - - - - 40 16.9 - - - - - - - -
AB-35S American Assay AL-02 72 27.9 16.6 - - - - 32.3 17.2 1.8 - - - - - 3.5 -
GWA-7S American Assay AL-03 28.0-30.0 32.8 - - - - - 49.6 17.6 - - - - - - - -
AB-20S American Assay AL-04 23.0-25.0 49.3 - - - - - 50.3 - - - - - - - - -
AB-29D American Assay AL-05 65.0-66.5 27.8 55.1 - - - - 3 14 1 - - - - - - -
AB-27D American Assay AL-06 28.5-30.5 52.5 - - - - - 42.8 4.3 - - - - - - - -
GWA-3S American Assay AL-08 22.0-24.0 20.4 9.6 - - 41.1 - 28.1 - - - - - - - - -
AB-33S American Assay AL-09 30.0-35.0 23.4 - - - 44 - 32.5 - - - - - - - - -
AB-29D American Assay AL-10 50.0-55.0 18.5 3.1 - - 50.2 - 27.7 - - 0.5 - - - - - -
GWA-9S American Assay AL-11 19.0-21.0 15.9 18.5 - - 50.4 - 15.2 - - - - - - - - -
GWA-5S American Assay AL-12 24.0-26.0 26.5 25.7 - - 47.8 - - - - - - - - - - -
GWA-4S PMET AL-13 19.0-20.0 56.1 - 5.6 - - 4.0 14 - - - - - - 1.9 - 18.4
AB-22D PMET AL-14 58.0-59.5 24.0 - 2.9 9.9 - 5.8 23.4 3.6 - - 3.5 1.6 1.2 - - 24.1
AB-26D PMET AL-15 95.0-105.0 10.4 - - 12.9 - - 16.1 1.7 - - 1.7 29.4 0.9 - - 35.3
AB-36S PMET AL-16 23.0-25.0 28.0 - - 15.4 - 4.2 9.4 6.7 - - 6.7 - 0.4 - - 35.9
Notes:
1. ft bgs = feet below ground surface
2. 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, Dolomite – CaMg(Co3)2,
Zeolite – (Na2,K2,Ca,Ba)[(Al,Si)O2]n•xH2O, Amphibole – (Ca,Na,K,Mn)2-3(Mg,Fe+2,Fe+3,Al,Ti,Mn,Cr,Li,Zn)5(Si,Al)8O22(OH)2

Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015. Allen Steam Station
Page 1 of 1
Table 6-2. Soil Chemistry Results, Elemental Composition and % Oxides
Boring
ID
Unique Lab
Identifier
Lab Performing
Analysis
Sample Depth (ft
bgs)
Elemental Composition (ppm)
As Cd Ce Co Cu Ga La Mo Ni Pb Sb Se Sn W Zn Zr
AB-34S American Assay AL-01 33.0-35.0 6 0.6 118 34 31 19 64 <1 29 13 <1 3 28 <1 56 15
AB-35S American Assay AL-02 72 29 0.6 70 28 45 19 29 1 35 23 2 7 22 <1 51 41
GWA-7S American Assay AL-03 28.0-30.0 <1 <0.2 54 23 20 21 21 <1 19 16 <1 4 19 <1 67 11
AB-20S American Assay AL-04 23.0-25.0 6 0.6 67 73 65 22 22 2 56 12 2 3 25 1 59 37
AB-29D American Assay AL-05 65.0-66.5 11 <0.2 73 20 44 16 30 1 19 15 2 <1 1 <1 49 16
AB-27D American Assay AL-06 28.5-30.5 6 <0.2 59 26 53 18 19 3 40 11 <1 <1 2 <1 54 25
GWA-3S American Assay AL-08 22.0-24.0 2 <0.2 99 18 28 18 35 <1 25 17 <1 <1 1 <1 94 15
AB-33S American Assay AL-09 30.0-35.0 4 <0.2 80 23 43 23 19 3 30 13 <1 <1 1 <1 61 17
AB-29D American Assay AL-10 50.0-55.0 5 <0.2 118 34 45 22 48 2 25 19 1 <1 2 2 82 37
GWA-9S American Assay AL-11 19.0-21.0 40 1.3 77 19 1288 271 22 <1 13 138 7 <1 13 4 88 90
GWA-5S American Assay AL-12 24.0-26.0 43 0.3 72 7 406 227 22 2 12 145 10 7 36 11 35 489
GWA-4S American Assay AL-13 19.0-20.0 5 <0.2 32 14 16 13 19 4 13 16 <1 <1 1 2 19 20
AB-22D American Assay AL-14 58.0-59.5 1 <0.2 19 28 61 18 17 4 23 10 <1 <1 <1 <1 65 15
AB-26D American Assay AL-15 95.0-105.0 1 <0.2 10 31 77 14 9 2 105 7 <1 <1 <1 <1 130 18
AB-36S American Assay AL-16 23.0-25.0 10 <0.2 28 20 65 24 18 4 30 20 <1 2 1 <1 30 11
Notes:
1. ppm = parts per million
2. ft bgs = feet below ground surface

Boring
ID
Lab Performing
Analysis
Unique Lab Identifier Sample Depth (ft
bgs)
Oxide Composition, Loss on Ignition, Carbon, and Sulfur (wt. %)
Al2O3 BaO CaO Cr2O3 Fe2O3 K2O MgO MnO Na2O P2O5 SiO2 SrO TiO2 V2O5 LOI C S
AB-34S American Assay AL-01 33.0-35.0 24.99 0.05 0.36 <0.01 6.07 0.45 1.22 0.13 0.05 0.14 53.85 <0.01 0.7 0.01 10.66 0.195 0.03
AB-35S American Assay AL-02 72 24.12 0.05 1.43 0.01 7 0.49 1.15 0.07 0.46 0.11 58.72 0.02 0.83 0.02 7.78 0.903 <0.005
GWA-7S American Assay AL-03 28.0-30.0 26.73 0.05 0.34 <0.01 5.72 0.4 1.45 0.15 0.02 0.09 56.56 <0.01 0.65 <0.01 11.13 0.087 <0.005
AB-20S American Assay AL-04 23.0-25.0 24.99 0.03 0.41 0.01 8.5 0.32 0.49 0.06 0.06 0.1 54.67 0.01 1.17 0.02 10.69 1.048 <0.005
AB-29D American Assay AL-05 65.0-66.5 16.79 0.08 4.7 <0.01 5.75 0.84 1.78 0.1 1.23 0.33 65.69 0.04 0.59 0.01 3.18 0.274 0.01
AB-27D American Assay AL-06 28.5-30.5 22.82 0.03 0.41 <0.01 10.59 0.42 0.68 0.07 0.05 0.14 56.58 <0.01 0.92 0.02 11.52 0.277 0.008
GWA-3S American Assay AL-08 22.0-24.0 19.69 0.05 2.53 <0.01 2.83 1.21 1.47 0.13 0.84 0.11 63.74 0.03 0.52 0.01 8.64 0.057 <0.005
AB-33S American Assay AL-09 30.0-35.0 20.73 0.03 0.53 <0.01 6.33 0.66 1.04 0.1 0.08 0.21 59.29 0.02 0.81 0.03 11.8 0.122 <0.005
AB-29D American Assay AL-10 50.0-55.0 17.34 0.05 0.81 <0.01 6.26 1.36 1.17 0.12 0.3 0.22 62 0.02 0.98 0.03 9.43 0.121 <0.005
GWA-9S American Assay AL-11 19.0-21.0 23.66 0.04 3.32 <0.01 6.61 1.06 2.23 0.13 10.62 0.34 45.02 0.04 0.73 0.03 7.83 0.022 <0.005
GWA-5S American Assay AL-12 24.0-26.0 12.91 0.02 1.71 <0.01 4.74 0.93 0.88 0.05 26.51 0.15 44.78 0.03 0.42 <0.01 1.74 0.014 <0.005
GWA-4S American Assay AL-13 19.0-20.0 10.81 0.04 0.39 0.02 4.75 3.16 0.32 0.05 0.17 0.07 69.13 <0.01 0.61 0.02 4.3 0.128 0.075
AB-22D American Assay AL-14 58.0-59.5 17.52 0.05 2.49 0.02 8.5 3.72 2.33 0.12 0.88 0.13 60.03 0.03 0.89 0.03 5.77 0.034 <0.005
AB-26D American Assay AL-15 95.0-105.0 16.02 0.03 5.53 0.07 10.26 3.16 6.39 0.11 0.99 0.19 52.89 0.03 0.65 0.04 5.38 0.017 <0.005
AB-36S American Assay AL-16 23.0-25.0 16.99 0.05 3.27 0.02 5.59 3.06 1.23 0.05 1 0.13 64.95 0.06 0.79 0.03 4.13 0.568 <0.005
Notes:
1. ft bgs = feet below ground surface

TABLE 6-3
SOLID MATRIX PARAMETERS AND ANALYTICAL METHODS FOR SOIL, ASH, AND
ROCK PARAMETERS AND CONSTITUENT ANALYSIS - ANALYTICAL METHODS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
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Rock Parameters Page 1 of 1
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.
TABLE 6-4
ASH PORE WATER, GROUNDWATER, SURFACE WATER,
AND AOW ANALYTICAL METHODS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA
Update\Final\Tables\Table 6-4 Ash Pore Water, GW, SW and AOW Analytical Results.docx Page 1 of 2

Parameter RL Units Method
Field Parameters
pH NA SU Field Water Quality Meter
Specific Conductance NA mmho/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
INORGANICS
Aluminum 5 µg/L EPA 200.7 or 6010C
Antimony 1 µg/L EPA 200.8 or 6020A
Arsenic 1 µg/L EPA 200.8 or 6020A
Barium 5 µg/L EPA 200.7 or 6010C
Beryllium 1 µg/L EPA 200.8 or 6020A
Boron 50 µg/L EPA 200.7 or 6010C
Cadmium 1 µg/L EPA 200.8 or 6020A
Chromium 1 µg/L EPA 200.7 or 6010C
Cobalt 1 µg/L EPA 200.8 or 6020A
Copper 0.005 mg/L EPA 200.7 or 6010C
Iron 10 µg/L EPA 200.7 or 6010C
Lead 1 µg/L EPA 200.8 or 6020A
Manganese 5 µg/L EPA 200.7 or 6010C
Mercury (low level) 0.012 µg/L EPA 245.7 or 1631
Molybdenum 5 µg/L EPA 200.7 or 6010C
Nickel 5 µg/L EPA 200.7 or 6010C
Total Combined Radium (Ra-226 and Ra-228) 4 5 pCi/L EPA 903.0
Selenium 1 µg/L EPA 200.8 or 6020A
Strontium 5 µg/L EPA 200.7 or 6010C
Thallium (low level) 0.2 µg/L EPA 200.8 or 6020A
Vanadium (low level) 0.3 mg/L EPA 200.8 or 6020A
Zinc 5 µg/L EPA 200.7 or 6010C
Anions/Cations
Alkalinity (as CaCO3) 20 mg/L SM 2320B
Bicarbonate 20 mg/L SM 2320
Calcium 0.01 mg/L EPA 200.7
Carbonate 20 mg/L SM 2320
Chloride 0.1 mg/L EPA 300.0 or 9056A
Magnesium 0.005 mg/L EPA 200.7
Nitrate as Nitrogen 0.023 mg-N/L EPA 300.0 or 9056A
TABLE 6-4
ASH PORE WATER, GROUNDWATER, SURFACE WATER,
AND AOW ANALYTICAL METHODS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
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Update\Final\Tables\Table 6-4 Ash Pore Water, GW, SW and AOW Analytical Results.docx Page 2 of 2

Parameter RL Units Method
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 (as H2S) 5 0.05 mg/L SM4500S-D
Total Dissolved Solids 25 mg/L SM 2540C
Total Organic Carbon 0.1 mg/L SM 5310
Total Suspended Solids 2 mg/L SM 2450D
Additional Groundwater Constituents
Iron Speciation (Fe(II),Fe(III)) Vendor Specific µg/L IC-ICP-CRC-MS
Manganese Speciation (Mn(II), Mn(IV)) Vendor Specific µg/L IC-ICP-CRC-MS
Arsenic Speciation (As(III), As(V)) Vendor Specific µg/L IC-ICP-CRC-MS
Chromium Speciation (Cr(VI)) Vendor Specific µg/L IC-ICP-CRC-MS
Selenium Speciation (Se(IV), Se(VI)) Vendor Specific µg/L IC-ICP-CRC-MS
Prepared by: RBI Checked by: SRW/TCP
Notes:
1. Select constituents will be analyzed for total and dissolved concentrations.
2. RL is the laboratory analytical method reporting limit.
3. NA indicates not applicable.
4. Voluntary monitoring well AB-9D and the proposed background wells BG-3S/D will be sampled for total
combined radium.
5. Sulfide (as H2S) will be analyzed for groundwater samples only.
6. Select wells will be sampled for speciation as described in Section 7.2.3 of the work plan.
7. All EPA methods and RLs are at or below the respective 2L or 2B Standard for constituents with standards.
ºC - Degrees Celsius
mg/L - Milligrams per liter
mg - N/L - Milligrams nitrogen per liter
mmho/cm - millimho per centimeter
mV - Millivolts
NA - Not analyzed
NTU - Nephelometric turbidity unit
pCi/L - picocuries per liter
RL = reporting limit
S.U. - Standard Unit
ug/L - Micrograms per liter

Allen Steam Station
Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015. Page 1 of 1
Table 6-5. Transition Zone Mineralogy Results
Boring
ID
Lab Performing
Analysis
Unique Lab
Identifier
Sample Depth
(ft bgs)
Mineralogical Composition (wt %)
Quartz Feldspars Illite Kaolinite Mullite Biotite Amphibole Dolomite
AB-35BR American Assay AL-07 160.0-161.0 41.4 46.7 9.7 3.9 0.7 - - -
GWA-4D American Assay AL-17 83.3-83.7 30.1 50.6 - - - 14.5 2.9 1
Notes:
1. ft bgs = feet below ground surface
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, Mullite – 3Al2O3•2SiO2, Biotite – K2(Mg,Fe+2)6-4(Fe+3,Al,Ti)0-2[Si6-5Al2-3O20](OH,F)4, Dolomite – CaMg(Co3)2, Amphibole – (Ca,Na,K,Mn)2-
3(Mg,Fe+2,Fe+3,Al,Ti,Mn,Cr,Li,Zn)5(Si,Al)8O22(OH)2
Allen Steam Station
Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015. Page 1 of 1
Table 6-6. Transition Zone Results, Elemental Composition and % Oxides
Boring
ID
Lab Performing
Analysis
Unique Lab
Identifier
Sample Depth (ft bgs) Elemental Composition (wt %)
As Cd Ce Co Cu Ga La Mo Ni Pb Sb Se Sn W Zn Zr
AB-35BR American Assay AL-07 160.0-161.0 3 <0.2 83 17 29 11 32 1 11 13 2 1 <1 <1 45 9
GWA-4D American Assay AL-17 83.3-83.7 2 <0.2 54 26 71 16 15 <1 4 11 <1 <1 6 <1 86 6
Notes:
1. ft bgs = feet below ground surface
2. ppm = parts per million

Boring
ID
Lab Performing Analysis Unique Lab Identifier Sample Depth (ft bgs) Oxide Composition (wt. %)
Al2O3 BaO CaO Cr2O3 Fe2O3 K2O MgO MnO Na2O P2O5 SiO2 SrO TiO2 V2O5
AB-35BR American Assay AL-07 160.0-161.0 12.87 0.05 5.2 <0.01 6.91 1.38 2.08 0.13 1.34 0.45 68.15 0.04 0.53 0.01
GWA-4D American Assay AL-17 83.3-83.7 14.56 0.05 5.01 <0.01 8.56 1.21 3.13 0.19 1.12 0.22 65.2 0.03 0.87 0.03
Notes:
1. ft bgs = feet below ground surface

Table 6-7. Whole Rock Chemistry Results, Elemental Composition and % Oxides
Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015.Allen 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-1D American Assay AL-18 88.8-89.0 4 <0.2 39 3 19 11 24 1 7 17 2 <1 <1 <1 75 23
GWA-5BR American Assay AL-19 121.0-121.15 5 <0.2 631 18 63 17 21 1 8 10 2 <1 5 <1 5 5
AB-35BR American Assay AL-20 192.4-192.6 3 <0.2 33 12 222 15 17 2 7 14 3 <1 <1 <1 64 6
AB-35BR American Assay AL-21 189.0-189.2 13 <0.2 172 6 4 22 80 3 3 19 <1 <1 2 <1 157 210
AB-20D American Assay AL-22 138.9-139.1 2 <0.2 609 17 64 18 16 <1 4 12 1 <1 7 <1 <1 4
GWA-8D American Assay A-GWA-8D-1 119.1-119.4 2 <0.2 41 44 68 17 21 <1 52 12 3 <1 1 <1 75 54
Notes:
1. ft bgs = feet below ground surface
2. ppm = parts per million
Unique Lab Sample Depth
Identifier (ft bgs)Al2O3 BaO CaO Cr2O3 Fe2O3 K2O MgO MnO Na2O P2O5 SiO2 SrO TiO2 V2O5 LOI C S
GWA-1D American Assay AL-18 88.8-89.0 15.61 0.17 2.4 0.05 2.02 1.93 0.54 0.04 1.48 0.04 66.75 0.04 0.15 <0.01 0.45 0.041 <0.005
GWA-5BR American Assay AL-19 121.0-121.15 19.46 0.04 7.08 0.04 7.93 1.44 2.84 0.15 1.63 0.2 54.68 0.07 0.62 0.04 0.51 0.065 0.06
AB-35BR American Assay AL-20 192.4-192.6 17.06 0.06 4.58 0.05 5.09 2.15 1.81 0.1 1.64 0.16 62.64 0.06 0.39 0.02 1.2 0.181 0.05
AB-35BR American Assay AL-21 189.0-189.2 20.6 0.18 2.6 0.02 4.12 3.14 1.18 0.11 2.02 0.29 61.1 0.06 0.65 <0.01 1.4 0.22 0.048
AB-20D American Assay AL-22 138.9-139.1 20.03 0.04 6.76 0.03 8.34 1.7 2.72 0.15 1.66 0.21 54.96 0.07 0.61 0.03 0.55 0.007 0.049
GWA-8D American Assay A-GWA-8D-1 119.1-119.4 19.46 0.06 10.12 0.03 12.28 1.58 7.03 0.15 1.42 0.39 49.29 0.08 1.34 0.06 1.87 0.098 0.134
Notes:
1. ft bgs = feet below ground surface
Boring ID Elemental Composition (ppm)
Boring ID Lab Performing Analysis Oxide Composition, Loss on Ignition, Carbon, and Sulfur (wt. %)
Table 6.8 Petrographic Analysis Summary
Quartz Plagioclase Hornblende Pyroxene Biotite Chlorite Epidote Sericite Apatite Sphene Pyrite Zircon
GWA-1D HDR A-GWA-1D-1 88.5' to 88.8'25 50 3 -10 3 5 2 tr2 tr 2 tr Meta-Quartz Diroite
GWA-5BR HDR A-GWA-5BR-1 121.15' to 121.6'10 50 10 -15 3 5 4 tr 1 2 tr Meta-Quartz Diorite
AB-35BR HDR A-AB-35BR-2 192.4' to 192.6'18 50 5 -15 3 5 2 tr tr 2 tr Meta-Quartz Diorite
AB-35BR HDR A-AB-35BR-1 188.7' TO 189.0'2 70 5 -15 3 1 2 -tr 2 -Meta Diorite
AB-20D HDR A-AB-20D-1 138.5' to 138.7'10 50 12 -15 3 5 2 tr tr 3 tr Meta-Quartz Diorite
GWA-8D HDR A-GWA-8D-1 119.1' to 119.4'-40 40 10 1 1 5 tr tr -2 tr Meta-Diabase
Rock Type Boring ID Petrography
By Sample ID Sample Depth
1Percent Mineralogy estimated using Comparison Charts for Estimating Percentage Composition. All estimates are approximate.
2tr - Trace Amounts.
Quartz- SiO2
Plagioclase Feldspar: NaAlSi3O8 – CaAl2Si2O8
Biotite: K(Mg,Fe)3AlSi3O10(OH)2
Pyrite: FeS2
Apatite: Ca5(PO4)3(F,Cl,OH)
Zircon: ZrSiO4
Sericite: K2Al4[Si3AlO10]2(OH)2
Chlorite: (Mg,Fe)3(Si,Al)4
Epidote: Ca2Al2(Fe3+;Al)(SiO4)(Si2O7)O(OH)
Pyroxene (augite): (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6
Pyroxene (diopside): MgCaSi2O6
Mineral Percentage by Volume1
Source: HDR, Comprehensive Site Assessment Supplement 1 Report Allen Creek Steam Station Ash Basin, February 19, 2016.
O10(OH)2(Mg,Fe)3(OH)6
TABLE 6-9
HISTORICAL WATER LEVEL MEASUREMENTS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\Table 6-9 Water Level Measurements Page 1 of 4
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6/25/2015 6/26/2015 9/18/2015 5/2/2016 5/23/2016 9/12/2016 9/16/2016 9/19/2016 12/12/2016 3/27/2017 6/20/2017 9/11/2017
AB-10D 574.97 514.91 509.91 Deep 565.91 565.25 564.94 566.79 566.62 565.42
AB-10S 575.05 569.61 554.61 Shallow 565.97 565.34 564.97 566.81 566.7 565.48
AB-11D 618.07 600.39 595.39 Deep 609.44 611.45 608.36 608.35 611.26 610.98 609.5
AB-12D 651.75 558.71 553.71 Deep 637.97 641.33 636.61 637.24 639.83 639.84 637.33
AB-12S 651.69 641.64 626.64 Shallow 636.09 639.79 634.65 636.45 639.14 638.25 635.88
AB-13D 648.54 578.89 573.89 Deep 637.96 636.46 636.46 638.63 639.42 637.24
AB-13S 648.72 639.98 624.98 Shallow 637.87 636.35 636.33 638.7 639.64 637.11
AB-14BR 642.2 548.9 543.9 Bedrock 628.22 628.22 624.48 622.38 627.35 627.45 625.41
AB-14D 641.8 620.06 610.06 Deep 624.68 624.11 625.35 627.15 626.87 625.17
AB-1R 675.86 622.57 602.57 Shallow 621.76 620.61 623.41 622.93 621.87 621.55 621.56 620.34
AB-2 638.74 631.7 616.7 Shallow 621.33 624.87 624.87 621.05 622.57 624.58 623.59 622.06
AB-20D 649.27 521.57 516.57 Deep 636.41 634.7 638.26 636.08 636.07 637.48 637.28 636.93
AB-20S 649.42 641.74 626.74 Shallow 636.88 636.38 637.49 637.64 637.63 637.92 637.81 637.86
AB-21BR 647.68 481.66 476.66 Bedrock 635.69 636.28 637.06 636.48 636.47 636.56 636.32 636.54
AB-21BRL 647.59 421.4 416.4 Bedrock 637.03 636.32 636.12 636.35
AB-21D 647.57 501.7 496.7 Deep 635.7 636.32 637.05 636.48 636.49 636.57 636.38 636.61
AB-21S 647.41 638.82 623.82 Shallow 635.61 636.15 636.91 636.11 636.1 636.46 635.44 636.2
AB-21SL 647.36 609.78 599.78 Shallow 635.91 636.35 636.96 636.39 636.39 636.54 636.53 636.42
AB-22BR 645.032 442 437 Bedrock 599.532 600.312 599.982 599.492
AB-22D 644.81 485.11 480.11 Deep 599.04 598.48 599.39 599.3 599.23 600.01 599.65 600.35
AB-22S 644.89 560.16 545.16 Shallow 595.01 588.59 594.89 595.03 594.89 595.74 595.62 595.2
AB-23BRU 646.47 525.4 520.4 Deep 526.26 607.26 624.9 622.5 622.49 624.56 619.45 622.48
AB-23S 646.61 618.38 603.38 Shallow 636.29 637.17 638.4 637.92 637.92 637.56 637.43 637.8
AB-24BR 648.321 492.1 487.1 Bedrock 636.401 636.051 636.251 636.171
AB-24D 647.86 535.05 530.05 Deep 634.68 635.31 636.54 636.01 636.26 632.96 636.15 636.03
AB-24S 647.86 639.89 624.89 Shallow 636.84 637.59 638.56 637.85 637.91 635.89 638.1 637.96
AB-24SL 647.92 619.52 609.52 Shallow 637.13 637.38 638.18 637.83 637.86 637.44 637.91 637.78
AB-25BR 647.11 504.39 499.39 Bedrock 636.49 636.76 637.11 637.22 637.16 636.71 636.97 636.92
AB-25BRU 646.76 536.41 531.41 Deep 636.57 637.42 637.21 637.24 637.23 636.84 637.07 636.95
AB-25S 647.22 639.46 624.46 Shallow 639.92 640.11 640.27 640.17 640.29 637.47 640.15 640.1
AB-25SL 646.97 614.45 599.45 Shallow 637.27 637.64 637.66 637.64 639.41 637.5 637.39
AB-26D 643.42 452.05 447.05 Deep 583.61 582.15 584.11 583.51 583.07 584.53 584.27 583.51
AB-26S 643.32 558.5 548.5 Shallow 582.05 580.4 582.29 582.04
AB-27BR 643.105 460.5 455.5 Bedrock 620.405 620.475 620.555 620.575
AB-27D 643.24 533.04 528.04 Deep 617.22 617.21 618.16 617.98 618.53 639.7 619.06 618.52
TOC
ElevationWell ID
Measured Depth to Water (feet MSL)
Monitoring ZoneScreened Interval
(feet TOC)Quarter 3 - 2016Quarter 2 - 2016Quarter 2 - 2015
TABLE 6-9
HISTORICAL WATER LEVEL MEASUREMENTS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\Table 6-9 Water Level Measurements Page 2 of 4
Quarter 3 - 2015 Quarter 4 - 2016 Quarter 1 - 2017 Quarter 2 - 2017 Quarter 3 - 2017
6/25/2015 6/26/2015 9/18/2015 5/2/2016 5/23/2016 9/12/2016 9/16/2016 9/19/2016 12/12/2016 3/27/2017 6/20/2017 9/11/2017
TOC
ElevationWell ID
Measured Depth to Water (feet MSL)
Monitoring ZoneScreened Interval
(feet TOC)Quarter 3 - 2016Quarter 2 - 2016Quarter 2 - 2015
AB-27S 643.25 635.53 620.53 Shallow 638.76 638.74 639.95 639.64 639.85 618.99 639.88 639.16
AB-28D 644.17 486.32 481.32 Deep 629.26 629.52 630.29 630.03 630.1 629.77 630.01 630.01
AB-28S 644.19 639.35 624.35 Shallow 640.98 641.19 641.19 641.21 641.15 639.89 641.23 641.23
AB-29D 620.46 508.09 503.09 Deep 612.71 612.56 613.66 613.38 614.06 614.23 614.16
AB-29S 620.46 615.6 600.6 Shallow 611.08 611.11 612.41 611.74 613.19 613.33 613.39
AB-29SL 620.45 584.59 574.59 Shallow 611.37 611.23 612.47 612.01 612.97 613.08 613.09
AB-2D 638.33 570.2 565.2 Deep 621.53 618.34 624.13 621.33 622.4 623.76 623.42 622.23
AB-30D 621.38 483.53 478.53 Deep 619.54 619.48 620.5 620.04 620.06 620.16 620.11
AB-30S 621.21 616.46 601.46 Shallow 617.85 616.64 617.56 617.16 617.2 617.21 617.74
AB-31D 627.25 496.43 491.43 Deep 578.91 578.01 579.9 579.25 579.54 579.45 579.12
AB-31S 627.2 569.4 554.4 Shallow 577.9 576.89 578.52 578.09 578.36 578.3 578.04
AB-32D 624.4 504.63 499.63 Deep 577 575.25 578.08 576.99 577.51 575.14 576.29
AB-32S 624.34 569.7 554.7 Shallow 582.74 581.49 577.76 583.04 582.85 582.86 583.53
AB-33D 627.39 508.27 503.27 Deep 593.95 594.46 596.36 595.62 595.06 595.22 593.54
AB-33S 627 603.96 588.96 Shallow 600.39 599.59 602.09 601 600.25 600.48 599.64
AB-34D 632.93 495.17 490.17 Deep 611.73 610.74 613.3 612.07 611.34 611.34 611.66 611.48
AB-34S 632.88 613.16 598.16 Shallow 612.65 611.52 614.14 612.85 612.18 612.28 612.69 612.37
AB-35BR 664.54 479.73 474.73 Bedrock 620.57 618.96 622.06 620.23 620.19 621.11 621.35 621.43
AB-35D 664.55 514.65 509.65 Deep 620.47 618.9 621.97 620.14 620.08 620.96 621.23 620.6
AB-35S 664.47 626.62 611.62 Shallow 619.8 618.8 620.75 619.63 619.68 620.45 620.55 621.36
AB-36D 626.68 531.02 526.02 Deep 620.93 618.12 623.36 620.11 621.34 623.03 622.57 620.97
AB-36S 627.18 619.09 609.09 Shallow 620.23 617.98 622.96 619.64 620.65 622.61 621.8 620.57
AB-37D 628.09 564.89 559.89 Deep 622.69 619.64 625.48 621.78 622.77 624.84 624.64 622.57
AB-37S 628.01 621.88 606.88 Shallow 621.13 619.54 624.39 620.94 621.48 623.43 624.26 621.25
AB-38BR 634.133 529.9 524.9 Bedrock 622.963 624.893 625.583 622.623
AB-38D 634.41 563.62 558.62 Deep 624.26 621.06 627.43 622.95 622.9 624.8 625.54 622.6
AB-38S 634.64 621.67 606.67 Shallow 624.7 621.52 627.57 623.38 623.09 625.06 625.93 623.1
AB-39D 637.46 551.48 546.48 Deep 619.72 617.49 621.27 619.1 618.05 618.34 619.11 618.26
AB-39S 637.47 604.42 589.42 Shallow 619.67 617.36 620.47 618.87 617.43 617.24 617.97 617.5
AB-4BR 648.552 565.59 560.59 Bedrock 641.742 641.742 638.372 637.572 639.222 640.032 638.322
AB-4D 649.17 601.98 596.98 Deep 634.44 641.37 636.6 636.75 639.21 639.77 637.55
AB-4S 650.46 635.52 620.52 Shallow 637.83 641.23 636.62 636.74 639.32 639.63 637.39
AB-5 677.02 647.1 632.1 Shallow 637.08 636.01 638.62 636.99 636.97 637.21 637.04 636.56
AB-6A 579.3 546.08 543.08 Shallow 570.25 571.4 570.57 570.11 571.69 571.73 570.76
AB-6R 579.9 541 538 Shallow 571.52 571.25 572.16 571.24 570.86 572.45 572.46 571.45
AB-9D 582.73 464.8 459.8 Deep 568.24 565.68 569.49 567.68 567.35 569.11 568.89 567.82
TABLE 6-9
HISTORICAL WATER LEVEL MEASUREMENTS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\Table 6-9 Water Level Measurements Page 3 of 4
Quarter 3 - 2015 Quarter 4 - 2016 Quarter 1 - 2017 Quarter 2 - 2017 Quarter 3 - 2017
6/25/2015 6/26/2015 9/18/2015 5/2/2016 5/23/2016 9/12/2016 9/16/2016 9/19/2016 12/12/2016 3/27/2017 6/20/2017 9/11/2017
TOC
ElevationWell ID
Measured Depth to Water (feet MSL)
Monitoring ZoneScreened Interval
(feet TOC)Quarter 3 - 2016Quarter 2 - 2016Quarter 2 - 2015
AB-9S 582.72 575.02 560.02 Shallow 570.13 568.86 570.66 570.39 569.98 571.21 570.81 570.5
BG-1D 694.93 569.55 564.55 Deep 635.72 634.09 636.43 635.42 635.25 635.52
BG-1DA 693.93 559.66 554.66 Deep 693.93 636.82 635.92
BG-1S 695.13 652.4 637.4 Shallow 635.48 633.92 636.55 635.24 634.93 635.14 635.32 634.71
BG-2BR 644.48 506.44 501.44 Bedrock 533.83 584.98 586.16 587.28 587.27 586.5
BG02BRA-2 644.03 513.68 503.68 Bedrock 584.31
BG-2D 644.22 534.33 529.33 Deep 587.13 586.47 587.57 588.01 588.02 587.16 588.55 588.53
BG-2S 644.31 588.41 573.41 Shallow 589.68 588.95 589.7 590.01 589.99 589.4 590.43 590.34
BG-3D 674.44 578.99 573.99 Deep 607.76 605.02 607.64 607.77 607.75 606.92 607.13 606.68
BG-3S 675.18 602.5 587.5 Shallow 605.53 605.12 607.85 608.15 608.14 607.32 607.36 607.05
BG-4BR 662.077 499.01 494.01 Bedrock 573.547 573.547 573.317 573.287 573.627 573.707 573.227
BG-4D 661.624 552.83 547.83 Deep 574.024 574.024 573.844 573.834 574.014 574.144 573.694
BG-4S 662.193 580.89 565.89 Shallow 576.663 576.663 576.813 576.783 576.883 576.983 576.793
GWA-14D 653.21 544.51 539.51 Deep 626.04 623.03 628.86 625 625.09 627.76
GWA-14DA 654.05 550.06 545.06 Deep 630.14 628.23
GWA-14S 653.57 634.8 619.8 Shallow 627.66 573.12 630.07 626.05 625.57 628.75 629.59 627.11
GWA-15D 633.27 548.99 543.99 Deep 625.87 623.36 628.11 625.82 625.88 627.22 627.26 626.32
GWA-15S 632.71 616.05 601.05 Shallow 625.8 628.41 628.09 625.62 625.84 627.26 627.27 626.16
GWA-16D 656.059 554.57 544.57 Deep 603.729 603.729 604.089 604.089 603.299 603.219 603.209
GWA-16S 656.593 608.37 593.37 Shallow 595.293 605.293 605.843 605.833 605.003 604.913 604.943
GWA-17D 681.719 564.34 554.34 Deep 617.119 617.119 617.829 617.159 616.239 615.969 615.909
GWA-17S 681.89 610.18 595.18 Shallow 618.11 618.11 618.59 617.88 616.98 616.71 616.65
GWA-18D 651.137 561.6 556.6 Deep 627.397 627.397 623.597 622.677 624.477 624.937 622.107
GWA-18S 651.04 593.38 578.38 Shallow 627.43 627.43 623.56 622.62 624.48 624.99 622.03
GWA-19D 669.948 545.02 540.02 Deep 627.618 627.618 627.388 626.858 626.748 627.078 626.918
GWA-19S 669.849 627.98 612.98 Shallow 630.199 630.199 629.469 628.739 628.649 628.969 628.649
GWA-1BR 629.37 509.72 504.72 Bedrock 614.27 612.43 616.69 613.6 614.49 616.66 616.64 615.06
GWA-1D 629.38 548.53 543.53 Deep 614.73 612.48 616.78 613.67 614.59 616.75 616.76 615.14
GWA-1S 629.27 621.53 606.53 Shallow 615.24 612.99 617.37 614.21 615.15 617.29 617.32 615.7
GWA-21BR 671.74 470.07 465.07 Bedrock 635.47 634.38 634.93 636.38 635.16
GWA-21D 671.306 490.81 485.81 Deep 638.696 638.696 635.876 634.956 635.566
GWA-21DA 670.02 493.02 488.02 Deep 636.85 635.56
GWA-21S 671.24 645.36 630.36 Shallow 646.54 643.18 641.43 below pump 644.14 642.92
GWA-22D 665.288 485.29 480.29 Deep 632.678 634.248 630.058 630.048 631.878 632.638 632.258
GWA-22S 665.141 640.27 625.27 Shallow 637.341 637.341 632.881 632.851 633.731 634.901 632.811
GWA-23D 669.261 589.38 584.38 Deep 640.961 640.961 636.821 636.821 638.811 639.481 637.891
TABLE 6-9
HISTORICAL WATER LEVEL MEASUREMENTS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\Table 6-9 Water Level Measurements Page 4 of 4
Quarter 3 - 2015 Quarter 4 - 2016 Quarter 1 - 2017 Quarter 2 - 2017 Quarter 3 - 2017
6/25/2015 6/26/2015 9/18/2015 5/2/2016 5/23/2016 9/12/2016 9/16/2016 9/19/2016 12/12/2016 3/27/2017 6/20/2017 9/11/2017
TOC
ElevationWell ID
Measured Depth to Water (feet MSL)
Monitoring ZoneScreened Interval
(feet TOC)Quarter 3 - 2016Quarter 2 - 2016Quarter 2 - 2015
GWA-23S 670.089 647.04 632.04 Shallow 641.189 641.189 637.019 637.009 638.949 639.679 637.479
GWA-24BR 675.452 514.96 510.06 Bedrock 637.852 637.852 635.052 633.952 634.942 635.902 634.652
GWA-24D 675.476 552.53 547.53 Deep 639.126 639.126 636.826 634.436 636.066 637.066 636.036
GWA-24S 675.346 653.18 638.18 Shallow 639.906 638.316 638.316 638.296 638.376 638.306
GWA-26D 683.122 568.27 553.27 Deep 637.882 637.882 636.882 636.502 636.432 636.542 636.222
GWA-26S 683.103 637.66 612.66 Shallow 637.883 637.883 644.453 636.483 636.393 636.533 636.183
GWA-2D 579.66 459.27 454.27 Deep 573.27 571.2 575.06 572.55 572.55 575.36 575.24 573.33
GWA-2S 579.36 566.45 551.45 Shallow 570.53 568.42 572.66 569.9 570.05 566.08 573 570.81
GWA-3BR 583.6 415.66 410.66 Bedrock 573.69 571.45 574.38 573.39 572.8 574.57
GWA-3BRA 583.81 411.81 401.81 Bedrock 574.38 573.56
GWA-3D 580.3 438.47 433.47 Deep 573.82 571.57 574.56 573.8 572.92 574.81 574.01 573.33
GWA-3S 583.59 570.59 555.59 Shallow 571.48 569 572.28 571.11 570.45 572.4 572.12 571.05
GWA-4BR 580.02 433.02 428.02 Bedrock 570.53 571.94 571.89 571.84
GWA-4D 580.3 485.45 480.45 Deep 570.83 568.88 571.65 570.69 570.1 572.05 571.33 570.61
GWA-4S 580.32 573.54 558.54 Shallow 571.72 569.97 572.37 571.65 571.15 572.39 572.24 571.61
GWA-5BR 581.17 447.77 442.77 Bedrock 562.37 569.42 571.79 571.15 570.32 571.97
GWA-5BRA 581.18 443.18 438.18 Bedrock 571.32 570.27
GWA-5D 581.02 470.17 465.17 Deep 571.24 569.67 571.82 571.07 570.36 571.92 571.34 570.35
GWA-5S 580.93 569.3 554.3 Shallow 567.19 564.65 568.48 569.6 570.44 570.65 569.84 568.53
GWA-6BR 628.14 456.64 451.64 Bedrock 588.56 586.99 591.67 590.78 590.33 588.81 584.89 588.27
GWA-6D 628.55 510.45 505.45 Deep 586.68 588.55 593.1
GWA-6DA 630.162 508.49 503.49 Deep 592.492 592.492 590.622 590.052 597.812 591.822 592.372
GWA-6S 628.35 603.04 588.04 Shallow 597.31 595.79 600.61 598.37 597.32 597.75 598.75 597.25
GWA-7D 594.27 459.69 454.69 Deep 577.31 574.41 579.29 577.93 576.96 577.92 578.78 577.99
GWA-7S 595.05 577.4 562.4 Shallow 582.4 580.3 584.97 556.83 582.35 583.35 584.25 583.23
GWA-8D 676.66 554.08 549.08 Deep 610.61 609.31 612.64 612.17 611.29 610.65 610.35 609.83
GWA-8S 676.88 630.43 615.43 Shallow 608.7 606.66 610.13 609.73 608.92 608.32 607.94 607.36
GWA-9BR 648.04 504.04 499.04 Bedrock 635.87 637.71 637.67 635.83
GWA-9D 647.65 536.39 531.39 Deep 636.7 633.45 639.45 635.44 635.76 637.72 637.71 635.69
GWA-9S 647.56 638.63 623.63 Shallow 635.68 633.45 638.66 634.95 636.45 638.19 637.55 635.67
Prepared by: LWD Checked by: EMY
TABLE 6-10
HORIZONTAL GROUNDWATER GRADIENTS AND VELOCITIES
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\Table 6-10 Horizontal Groundwater Gradients and Velocities Page 1 of 1
Ash Shallow Deep Bedrock
NW GWA-19S to BG-2S 0.035 -20.64 --
E AB-37S to GWA-5S 0.013 82.34 7.79 --
N/NE AB-38S to GWA-8S 0.018 107.93 10.21 --
NE AB-39S to GWA-6S 0.024 150.58 14.24 --
E AB-20S to AB-10S 0.019 115.08 10.88 --
E AB-25S to GWA-3S 0.067 410.86 38.85 --
E GWA-1S to GWA-2S 0.053 -30.64 --
NW GWA-19D to BG-2D 0.036 --1849.54 -
E AB-37D to GWA-5D 0.013 --678.65 -
N/NE AB-38D to GWA-8D 0.014 --731.18 -
NE AB-39D to GWA-6DA 0.031 --1575.37 -
E AB-20D to AB-10D 0.018 --946.34 -
E AB-25BRU to GWA-3D 0.061 --3129.81 -
E GWA-1D to GWA-2D 0.049 --2508.60 -
NE AB-14BR to AB-38BR 0.009 ---23.22
E AB-25BR to GWA-3BRA 0.061 ---165.89
NE AB-35BR to GWA-6BR 0.019 ---51.78
SE AB-21BR to GWA-1BR 0.013 ---35.65
N/NE GWA-21BR to AB-14BR 0.011 ---28.83
N/NW GWA-21BR to BG-2BRA2 0.018 ---50.08
Prepared by: RAG Checked by: LWD
Notes:
ft = feet
yr = year
1. Water level measurements used for these calculations were collected in September 2017
2. Hydraulic conductivities were taken from HDR CSA Supp 2 in situ slug test results
3. Effective porosities were taken from HDR 2015 CSA Report
Bedrock
Direction Data Points Gradient (ft per ft)Velocity (ft per yr)
Shallow
Deep
TABLE 6-11
VERTICAL HYDRAULIC GRADIENTS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\
Table 6-11 Vertical GradientsTable 6-11 Vertical Gradients Page 1 of 2
Well ID Potential
Vertical Gradient Direction
AB-21S to AB-21SL -0.008289375 Upward
AB-24S to AB-24SL 0.010072748 Downward
AB-25S to AB-25SL 0.108356657 Downward
AB-29S to AB-29SL 0.010522624 Downward
AB-04S to AB-04D -0.005606167 Upward
AB-09S to AB-09D 0.025470443 Downward
AB-10S to AB-10D 0.001207243 Downward
AB-12S to AB-12D -0.018606442 Upward
AB-13S to AB-13D -0.002317704 Upward
AB-20S to AB-20D 0.00807502 Downward
AB-21S to AB-21D -0.003103239 Upward
AB-22S to AB-22D -0.073518915 Upward
AB-23S to AB-23BRU 0.174130484 Downward
AB-24S to AB-24D 0.019330929 Downward
AB-25S to AB-25BRU 0.032126466 Downward
AB-26S to AB-26D -0.014141414 Upward
AB-27S to AB-27D 0.211714022 Downward
AB-28S to AB-28D 0.075795447 Downward
AB-29S to AB-29D -0.007511462 Upward
AB-30S to AB-30D -0.018525756 Upward
AB-31S to AB-31D -0.015889363 Upward
AB-32S to AB-32D 0.120526053 Downward
AB-33S to AB-33D 0.067262102 Downward
AB-34S to AB-34D 0.003384159 Downward
AB-35S to AB-35D 0.010003949 Downward
AB-36S to AB-36D -0.004674535 Upward
AB-37S to AB-37D -0.025389498 Upward
AB-38S to AB-38D 0.009425071 Downward
AB-39S to AB-39D -0.01585315 Upward
BG-01S to BG-01DA -0.015921053 Upward
BG-02S to BG-02D 0.036878566 Downward
BG-03S to BG-03D 0.019989195 Downward
BG-04S to BG-04D 0.134431917 Downward
GWA-01S to GWA-01D 0.008235294 Downward
GWA-02S to GWA-02D -0.024662361 Upward
GWA-03S to GWA-03D -0.017935809 Upward
GWA-04S to GWA-04D 0.012035143 Downward
GWA-05S to GWA-05D -0.019334962 Upward
GWA-06S to GWA-06DA 0.054494696 Downward
GWA-07S to GWA-07D 0.046490995 Downward
GWA-08S to GWA-08D -0.03461808 Upward
GWA-09S to GWA-09D -0.000205677 Upward
GWA-14S to GWA-14DA -0.01405164 Upward
GWA-15S to GWA-15D -0.00257815 Upward
GWA-16S to GWA-16D 0.033723197 Downward
GWA-17S to GWA-17D 0.017074296 Downward
GWA-18S to GWA-18D -0.002987304 Upward
GWA-19S to GWA-19D 0.022190867 Downward
GWA-21S to GWA-21DA 0.049445751 Downward
GWA-22S to GWA-22D 0.003667156 Downward
GWA-23S to GWA-23D -0.007785796 Upward
Shallow to SL
Shallow to Deep
TABLE 6-11
VERTICAL HYDRAULIC GRADIENTS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\
Table 6-11 Vertical GradientsTable 6-11 Vertical Gradients Page 2 of 2
GWA-24S to GWA-24D 0.023732358 Downward
GWA-26S to GWA-26D -0.000621214 Upward
AB-21SL to AB-21D -0.001799583 Upward
AB-24SL to AB-24D 0.021349274 Downward
AB-25SL to AB-25BRU 0.006024096 Downward
AB-29SL to AB-29D -0.014459459 Upward
AB-04D to AB-04BR -0.021159659 Upward
AB-14D to AB-14BR -0.003495485 Upward
AB-21D to AB-21BR 0.003493014 Downward
AB-22D to AB-22BR 0.019902575 Downward
AB-24D to AB-24BR -0.003282887 Upward
AB-25BRU to AB-25BR 0.000936914 Downward
AB-27D to AB-27BR -0.028329198 Upward
AB-35D to AB-35BR -0.012591019 Upward
AB-38D to AB-38BR -0.000682088 Upward
BG-02D to BG-02BRA2 0.158765989 Downward
BG-04D to BG-04BR 0.008547009 Downward
GWA-01D to GWA-01BR 0.002061324 Downward
GWA-03D to GWA-03BRA -0.007116337 Upward
GWA-04D to GWA-04BR -0.02324263 Upward
GWA-05D to GWA-05BRA 0.002920774 Downward
GWA-06DA to GWA-06BR 0.079074253 Downward
GWA-09D to GWA-09BR -0.003984064 Upward
GWA-21DA to GWA-21BR 0.019047619 Downward
GWA-24D to GWA-24BR 0.037046908 Downward
AB-21BR to AB-21BRL 0.003153004 Downward
AB-04S to AB-04BR -0.014323117 Upward
AB-21S to AB-21BR -0.00223449 Upward
AB-22S to AB-22BR -0.037928597 Upward
AB-24S to AB-24BR 0.012528889 Downward
AB-25S to AB-25BR 0.024448374 Downward
AB-27S to AB-27BR 0.10930424 Downward
AB-35S to AB-35BR -0.00049334 Upward
AB-38S to AB-38BR 0.005497292 Downward
BG-02S to BG-02BRA2 0.079698652 Downward
BG-04S to BG-04BR 0.046305931 Downward
GWA-01S to GWA-01BR 0.005991948 Downward
GWA-03S to GWA-03BRA -0.015742599 Upward
GWA-04S to GWA-04BR -0.001691052 Upward
GWA-05S to GWA-05BRA -0.014318631 Upward
GWA-06S to GWA-06BR 0.063507779 Downward
GWA-09S to GWA-09BR -0.001208642 Upward
GWA-21S to GWA-21BR 0.045687371 Downward
GWA-24S to GWA-24BR 0.027483667 Downward
AB-21BR to AB-21BRL -0.00014123 Upward
Prepared by: LWD Checked by: JYT
*Water levels from September 2017 were used to create this table
Bedrock to BRL
Shallow to Bedrock
Shallow to BRL
SL to Deep
Deep to Bedrock
Shallow to Deep Continued
TABLE 6-12
IN-SITU HYDRAULIC CONDUCTIVITY RESULTS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA
Update\Final\Tables\Table 6-12 Allen In-Situ Hydraulic ConductivitiesSummary Results by Unit_Slug Page 1 of 6
Measured Geometric
Mean Measured Geometric
Mean
Slug In Test 1 1.82E-03 5.17E+00
Slug Out Test 2 1.74E-03 4.92E+00
Slug In Test 1 2.75E-03 7.80E+00
Slug Out Test 2 1.90E-03 5.37E+00
Slug In Test 1 9.33E-05 2.64E-01
Slug-Out Test 2 8.35E-05 2.37E-01
Slug In Test 1 2.96E-03 8.38E+00
Slug Out Test 2 3.52E-03 9.99E+00
Slug In Test 1 3.82E-02 1.08E+02
Slug Out Test 2 3.34E-02 9.47E+01
Slug In Test 1 4.91E-04 1.39E+00
Slug Out Test 2 3.62E-04 1.03E+00
Slug In Test 1 9.93E-04 2.82E+00
Slug Out Test 2 6.29E-04 1.78E+00
Slug In Test 1 3.71E-04 1.05E+00
Slug Out Test 2 3.10E-04 8.79E-01
Slug In Test 1 1.15E-04 3.27E-01
Slug Out Test 2 1.29E-05 3.65E-02
Slug In Test 1 2.54E-05 7.21E-02
Slug Out Test 2 9.83E-06 2.79E-02
Slug In Test 1 3.27E-03 9.26E+00
Slug Out Test 2 5.98E-03 1.70E+01
Slug In Test 1 1.76E-04 5.00E-01
Slug Out Test 2 2.18E-04 6.17E-01
Slug In Test 1 1.43E-04 4.06E-01
Slug Out Test 2 4.34E-04 1.23E+00
Slug In Test 1 2.10E-03 5.94E+00
Slug Out Test 2 2.38E-03 6.73E+00
Slug In Test 1 1.00E-02 2.84E+01
Slug Out Test 2 4.95E-03 1.40E+01
Slug In Test 1 8.87E-04 2.51E+00
Slug Out Test 2 1.52E-04 4.29E-01
Slug In Test 1 2.67E-04 7.56E-01
Slug Out Test 2 1.94E-04 5.50E-01
OW-7 Slug In Test 1 8.35E-03 --2.37E+01 --
OW-9 Slug In Test 1 1.47E-03 --4.17E+00 --
OW-12 Slug In Test 1 1.68E-02 --4.76E+01 --
OW-18 Slug In Test 1 1.34E-03 --3.80E+00 --
OW-19 Slug In Test 1 1.14E-03 --3.23E+00 --
8.04E-04 -2.28E+00 -
3.82E-02 -1.08E+02 -
9.83E-06 -2.79E-02 -
Prepared by: RAG Checked by: LWD
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
** = Springer-Gelhar solution
AB-35S 2.23E-03 6.32E+00
Well ID Slug Test
Number
Hydraulic Conductivity
(cm/sec)
Hydraulic Conductivity
(ft/day)Slug Test
2.50E-018.83E-05AB-21SL
AB-30S 2.49E-04
AB-39S 2.28E-04 6.45E-01
7.07E-01
4.22E-04 1.20E+00AB-24SL
3.39E-04
GEOMETRIC MEAN
AB-23S
AB-24S
9.62E-01AB-25SL
3.57E-02 1.01E+02
AB-25S 7.90E-04 2.24E+00
AB-27S 3.85E-05 1.09E-01
AB-28S 1.58E-05 4.48E-02
AB-29S 4.42E-03 1.25E+01
AB-37S 7.04E-03 2.00E+01
AB-38S 3.67E-04 1.04E+00
HIGHEST CONDUCTIVITY
LOWEST CONDUCTIVITY
1.78E-03 5.04E+00
9.15E+00
*= Barker and Black solution
AB-20S
2.28E-03 6.47E+00AB-21S
Ash Pore Water
1.96E-04 5.55E-01AB-29SL
3.23E-03
TABLE 6-12
IN-SITU HYDRAULIC CONDUCTIVITY RESULTS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA
Update\Final\Tables\Table 6-12 Allen In-Situ Hydraulic ConductivitiesSummary Results by Unit_Slug Page 2 of 6
Measured Geometric Mean Measured Geometric Mean
AB-01 Slug Out Test 1 1.90E-04 --5.39E-01 5.39E-01
Slug Out Test 1 8.12E-04 2.30E+00
Slug Out Test 2 5.92E-05 1.68E-01
Slug Out Test 1 9.40E-04 2.66E+00
Slug Out Test 2 1.11E-04 3.15E-01
Slug Out Test 1 5.08E-04 1.44E+00
Slug Out Test 2 1.23E-03 3.49E+00
AB-6A Slug Out Test 1 5.79E-05 --1.64E-01 --
AB-6R Slug Out Test 1 2.81E-05 --7.97E-02 --
AB-8 Slug Out Test 1 6.61E-04 --1.87E+00 --
Slug In Test 1 6.29E-06 1.78E-02
Slug Out Test 2 4.05E-06 1.15E-02
Slug In Test 1 2.37E-05 6.73E-02
Slug Out Test 2 3.72E-05 1.06E-01
Slug In Test 1 5.31E-04 1.51E+00
Slug Out Test 2 7.59E-04 2.15E+00
Slug In Test 1 3.53E-06 1.00E-02
Slug Out Test 2 2.36E-06 6.70E-03
Slug In Test 1 6.78E-03 1.92E+01
Slug Out Test 2 3.55E-03 1.01E+01
AB-34S Slug Out Test 1 2.91E-02 --8.24E+01 --
Slug In Test 1 9.57E-04 2.71E+00
Slug Out Test 2 1.05E-03 2.97E+00
Slug In Test 1 3.54E-05 1.00E-01
Slug Out Test 2 2.06E-05 5.83E-02
Slug In Test 1 2.07E-05 5.88E-02
Slug Out Test 2 1.40E-04 3.96E-01
BG-3S Slug Out Test 1 5.78E-05 --1.64E-01 --
BG-4S Slug Out Test 1 4.11E-05 --1.16E-01 --
Slug In Test 1 1.32E-03 3.75E+00
Slug Out Test 2 4.09E-03 1.16E+01
Slug In Test 1 2.76E-04 7.81E-01
Slug Out Test 2 2.19E-04 6.20E-01
Slug In Test 1 4.08E-04 1.16E+00
Slug Out Test 2 4.30E-04 1.22E+00
BG-1S 2.70E-05 7.65E-02
BG-2S 5.38E-05 1.53E-01
1.39E+01
6.59E+00GWA-1S
Hydraulic Conductivity
(ft/day)Well ID Slug Test
1.80E+00
AB-32S 2.89E-06
AB-26S 2.97E-05 8.43E-02
AB-2 2.19E-04
AB-36S 1.00E-03 2.84E+00
Shallow
6.21E-01
AB-4 3.23E-04 9.16E-01
AB-5 7.90E-04 2.24E+00
1.19E+00GWA-3S
8.19E-03
Slug Test
Number
Hydraulic Conductivity
(cm/sec)
2.46E-04
AB-33S 4.91E-03
6.96E-01
AB-31S 6.35E-04
5.04E-06 1.43E-02AB-22S
4.19E-04
GWA-2S
2.33E-03
TABLE 6-12
IN-SITU HYDRAULIC CONDUCTIVITY RESULTS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA
Update\Final\Tables\Table 6-12 Allen In-Situ Hydraulic ConductivitiesSummary Results by Unit_Slug Page 3 of 6
Measured Geometric Mean Measured Geometric Mean
Slug In Test 1 4.50E-03 1.28E+01
Slug Out Test 2 1.90E-03 5.38E+00
GWA-5S Slug Out Test 1 7.26E-05 --2.06E-01 --
Slug In Test 1 4.03E-04 1.14E+00
Slug Out Test 2 7.32E-04 2.08E+00
Slug In Test 1 1.62E-04 4.60E-01
Slug Out Test 2 2.03E-04 5.76E-01
Slug In Test 1 1.89E-03 5.35E+00
Slug Out Test 2 7.67E-04 2.17E+00
Slug In Test 1 1.78E-04 5.05E-01
Slug Out Test 2 4.26E-04 1.21E+00
Slug In Test 1 9.72E-04 2.75E+00
Slug Out Test 2 1.09E-03 3.08E+00
Slug In Test 1 6.50E-04 1.84E+00
Slug Out Test 2 8.13E-04 2.31E+00
GWA-16S Slug Out Test 1 2.43E-04 --6.89E-01 --
Slug In Test 1 2.51E-05 7.11E-02
Slug Out Test 2 3.18E-05 9.01E-02
Slug In Test 1 3.51E-04 9.95E-01
Slug Out Test 2 3.14E-04 8.89E-01
Slug In Test 1 6.51E-06 1.84E-02
Slug Out Test 2 8.58E-06 2.43E-02
GWA-21S Slug Out Test 1 8.11E-05 --2.30E-01 --
GWA-22S Slug Out Test 1 1.18E-05 --3.33E-02 --
GWA-23S Slug Out Test 1 8.83E-06 --2.50E-02 --
Slug In Test 1 4.96E-05 1.40E-01
Slug Out Test 2 6.58E-05 1.87E-01
OW-3 Slug Out Test 1 4.07E-02 --1.15E+02 --
OW-5 Slug Out Test 1 4.27E-04 --1.21E+00 --
OW-8 Slug Out Test 1 3.94E-03 --1.12E+01 --
OW-10 Slug Out Test 1 1.10E-04 --3.12E-01 --
OW-16 Slug Out Test 1 5.35E-06 --1.52E-02 --
OW-20 Slug Out Test 1 2.37E-04 --6.72E-01 --
1.97E-04 -5.59E-01 -
4.07E-02 -1.15E+02 -
2.36E-06 -6.70E-03 -
Prepared by: RAG Checked by: LWD
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
** = Springer-Gelhar solution
GEOMETRIC MEAN
HIGHEST CONDUCTIVITY
LOWEST CONDUCTIVITY
Shallow (continued)
Well ID
GWA-18S 3.32E-04 9.41E-01
Slug Test Slug Test
Number
Hydraulic Conductivity
(cm/sec)
Hydraulic Conductivity
(ft/day)
GWA-14S
GWA-15S
7.47E-06 2.12E-02
1.03E-03
GWA-19S
7.27E-04 2.06E+00
GWA-17S 2.82E-05 8.00E-02
2.91E+00
*= Barker and Black solution
5.71E-05 1.62E-01GWA-26S
5.43E-04 1.54E+00GWA-6S
3.41E+00GWA-8SA
2.92E-03 8.28E+00GWA-4S
1.20E-03
1.82E-04 5.14E-01GWA-7S
2.75E-04 7.81E-01GWA-9S
TABLE 6-12
IN-SITU HYDRAULIC CONDUCTIVITY RESULTS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA
Update\Final\Tables\Table 6-12 Allen In-Situ Hydraulic ConductivitiesSummary Results by Unit_Slug Page 4 of 6
Measured Geometric
Mean Measured Geometric
Mean
Slug Out Test 1 5.65E-03 1.60E+01
Slug Out Test 1 4.01E-03 1.14E+01
Slug Out Test 2 5.52E-03 1.56E+01
Slug Out Test 1 4.13E-03 1.17E+01
Slug Out Test 2 9.43E-05 2.67E-01
Slug In Test 1 2.19E-02 6.22E+01
Slug Out Test 2 2.03E-02 5.74E+01
Slug In Test 1 2.02E-04 5.73E-01
Slug Out Test 2 1.77E-04 5.02E-01
Slug In Test 1 1.71E-03 4.85E+00
Slug Out Test 2 2.21E-03 6.26E+00
Slug In Test 1 1.86E-04 5.28E-01
Slug Out Test 2 1.26E-04 3.58E-01
Slug In Test 1 2.37E-05 6.72E-02
Slug Out Test 2 6.31E-05 1.79E-01
Slug In Test 1 2.91E-04 8.24E-01
Slug Out Test 2 4.22E-04 1.20E+00
Slug In Test 1 1.80E-04 5.10E-01
Slug Out Test 2 3.70E-04 1.05E+00
Slug In Test 1 8.27E-04 2.34E+00
Slug Out Test 2 9.74E-04 2.76E+00
Slug In Test 1 5.47E-04 1.55E+00
Slug Out Test 2 8.71E-04 2.47E+00
Slug In Test 1 4.38E-04 1.24E+00
Slug Out Test 2 5.39E-04 1.53E+00
Slug In Test 1 4.19E-05 1.19E-01
Slug Out Test 2 3.56E-05 1.01E-01
Slug In Test 1 8.82E-04 2.50E+00
Slug Out Test 1 1.06E-03 3.00E+00
Slug In Test 1 8.11E-05 2.30E-01
Slug Out Test 2 1.20E-04 3.40E-01
Slug In Test 1 1.16E-03 3.30E+00
Slug Out Test 2 1.27E-03 3.59E+00
Slug In Test 1 1.48E-03 4.20E+00
Slug Out Test 1 1.98E-03 5.61E+00
Slug In Test 1 1.61E-03 4.56E+00
Slug Out Test 2 1.89E-03 5.36E+00
Slug In Test 1 1.96E-03 5.55E+00
Slug Out Test 2 3.91E-03 1.11E+01
Slug In Test 1 2.17E-04 6.15E-01
Slug Out Test 2 2.65E-04 7.50E-01
Slug In Test 1 1.39E-04 3.93E-01
Slug Out Test 1 1.60E-04 4.52E-01
Slug In Test 1 1.71E-04 4.86E-01
Slug Out Test 2 1.14E-04 3.24E-01
Slug In Test 1 1.09E-04 3.08E-01
Slug Out Test 2 7.97E-05 2.26E-01
Hydraulic Conductivity
(cm/sec)
BG-4D 9.31E-05 2.64E-01
AB-2D 5.00E-03 1.42E+01
AB-4D 6.24E-04 1.77E+00
1.49E-04 4.22E-01
AB-39D 2.77E-03 7.85E+00
AB-37D 1.71E-03 4.86E+00
AB-38D 1.74E-03 4.94E+00
Slug Test
Number
Deep Zone
Hydraulic Conductivity
(ft/day)Well ID Slug Test
3.87E-05 1.10E-01AB-26D
AB-20D 2.11E-02
AB-24D
9.66E-04 2.74E+00
AB-35D 9.86E-05
AB-30D 6.91E-04 1.96E+00
9.93E-01AB-27D
BG-1D 2.40E-04 6.79E-01
BG-2D
3.50E-04
5.51E+001.94E-03
2.80E-01
AB-36D 1.21E-03
3.86E-05 1.09E-01
AB-34D
5.97E+01
1.89E-04
2.54E+00
AB-32D 4.86E-04 1.38E+00
AB-33D
5.36E-01AB-21D
1.53E-04 4.35E-01
AB-29D 8.97E-04
2.58E-04 7.32E-01AB-28D
3.44E+00
BG-3D 1.40E-04 3.97E-01
AB-22D
TABLE 6-12
IN-SITU HYDRAULIC CONDUCTIVITY RESULTS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA
Update\Final\Tables\Table 6-12 Allen In-Situ Hydraulic ConductivitiesSummary Results by Unit_Slug Page 5 of 6
Measured Geometric
Mean Measured Geometric
Mean
Slug In Test 1 9.25E-04 2.62E+00
Slug Out Test 2 1.22E-03 3.45E+00
Slug In Test 1 9.81E-04 2.78E+00
Slug Out Test 2 1.17E-03 3.31E+00
Slug In Test 1 1.00E-04 2.84E-01
Slug Out Test 2 2.24E-04 6.35E-01
Slug In Test 1 2.96E-03 8.38E+00
Slug Out Test 1 2.24E-03 6.34E+00
Slug In Test 1 1.49E-04 4.21E-01
Slug Out Test 2 1.33E-04 3.78E-01
Slug In Test 1 6.76E-05 1.92E-01
Slug Out Test 2 6.49E-05 1.84E-01
Slug In Test 1 1.98E-03 5.61E+00
Slug Out Test 2 1.82E-03 5.16E+00
Slug In Test 1 5.88E-04 1.67E+00
Slug Out Test 2 4.33E-04 1.23E+00
Slug In Test 1 2.20E-03 6.24E+00
Slug Out Test 1 1.49E-03 4.22E+00
Slug In Test 1 1.43E-04 4.06E-01
Slug Out Test 2 7.12E-05 2.02E-01
Slug In Test 1 3.32E-04 9.40E-01
Slug Out Test 2 4.63E-04 1.31E+00
Slug In Test 1 9.05E-04 2.56E+00
Slug Out Test 2 7.80E-04 2.21E+00
Slug In Test 1 5.73E-04 1.62E+00
Slug Out Test 1 5.54E-04 1.57E+00
Slug In Test 1 9.99E-02 2.83E+02
Slug Out Test 2 7.46E-02 2.11E+02
Slug In Test 1 1.98E-05 5.60E-02
Slug Out Test 2 1.42E-05 4.02E-02
Slug In Test 1 2.76E-04 7.82E-01
Slug Out Test 2 2.88E-04 8.16E-01
Slug In Test 1 1.20E-04 3.40E-01
Slug Out Test 2 1.04E-04 2.93E-01
Slug In Test 1 5.41E-04 1.53E+00
Slug Out Test 2 5.56E-04 1.58E+00
Slug In Test 1 3.29E-04 9.31E-01
Slug Out Test 2 3.20E-04 9.08E-01
Slug In Test 1 3.81E-04 1.08E+00
Slug Out Test 2 3.53E-04 1.00E+00
4.96E-04 -1.41E+00 -
9.99E-02 -2.83E+02 -
1.42E-05 -4.02E-02 -
Prepared by: RAG Checked by: LWD
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
** = Springer-Gelhar solution
GEOMETRIC MEAN
HIGHEST CONDUCTIVITY
LOWEST CONDUCTIVITY
GWA-9D 1.81E-03 5.13E+00
GWA-14D 1.01E-04 2.86E-01
Well ID Slug Test Slug Test
Number
Hydraulic Conductivity
(cm/sec)
Hydraulic Conductivity
(ft/day)
GWA-7D 1.90E-03 5.38E+00
GWA-8D 5.05E-04 1.43E+00
GWA-2D 1.07E-03 3.03E+00
GWA-3D 1.50E-04 4.25E-01
GWA-4D 2.57E-03 7.29E+00
GWA-6DA 6.62E-05 1.88E-01
GWA-5D 1.41E-04 3.99E-01
3.92E-04 1.11E+00GWA-15D
GWA-17D
2.82E-04 7.99E-01GWA-21D
GWA-16D
3.01E+00
1.11E-04 3.16E-01GWA-22D
3.24E-04 9.20E-01GWA-24D
8.63E-02
5.48E-04 1.55E+00
GWA-26D 3.67E-04 1.04E+00
8.40E-04 2.38E+00
1.60E+00
*= Barker and Black solution
Deep Zone (continued)
GWA-23D
1.67E-05 4.74E-02GWA-19D
GWA-1D 1.06E-03
2.45E+02GWA-18D**
5.63E-04
TABLE 6-12
IN-SITU HYDRAULIC CONDUCTIVITY RESULTS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA
Update\Final\Tables\Table 6-12 Allen In-Situ Hydraulic ConductivitiesSummary Results by Unit_Slug Page 6 of 6
Measured Geometric
Mean Measured Geometric
Mean
Slug In Test 1 4.03E-03 1.14E+01
Slug Out Test 2 3.68E-03 1.04E+01
Slug In Test 1 2.67E-04 7.57E-01
Slug Out Test 2 1.98E-04 5.60E-01
Slug In Test 1 1.13E-07 3.20E-04
Slug Out Test 2 1.88E-07 5.33E-04
Slug In Test 1 5.35E-07 1.52E-03
Slug Out Test 2 5.35E-07 1.52E-03
Slug In Test 1 3.45E-06 9.78E-03
Slug Out Test 2 1.56E-06 4.42E-03
Slug In Test 1 1.00E-04 2.83E-01
Slug Out Test 2 8.58E-05 2.43E-01
BG-2BR*Slug In/Out
Slug In Test 1 2.44E-04 6.91E-01
Slug Out Test 2 2.35E-04 6.66E-01
Slug In Test 1 7.33E-06 2.08E-02
Slug Out Test 2 7.07E-06 2.00E-02
Slug In Test 1 2.81E-07 7.97E-04
Slug Out Test 2 1.48E-07 4.20E-04
GWA-5BR*Slug In Test 1 1.59E-07 1.59E-07 4.50E-04 4.50E-04
Slug In Test 1 1.83E-05 5.19E-02
Slug Out Test 2 5.14E-05 1.46E-01
Slug In Test 1 2.87E-05 8.14E-02
Slug Out Test 2 1.83E-05 5.20E-02
Slug In Test 1 6.93E-05 1.96E-01
Slug Out Test 2 6.32E-05 1.79E-01
1.31E-05 -3.73E-02 -
4.03E-03 -1.14E+01 -
1.13E-07 -3.20E-04 -
Prepared by: RAG Checked by: LWD
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
** = Springer-Gelhar solution
HIGHEST CONDUCTIVITY
LOWEST CONDUCTIVITY
GEOMETRIC MEAN
AB-25BRU*
5.78E-04
7.20E-06 2.04E-02GWA-1BR*
AB-25BR*5.35E-07
Little or No Recovery
GWA-6BR*3.07E-05
2.63E-01
8.69E-02
1.52E-03
1.46E-07 4.13E-04AB-21BR*
AB-14BR 2.30E-04 6.51E-01
6.62E-05
Hydraulic Conductivity
(cm/sec)
Well ID Slug Test Slug Test
Number
GWA-24BR
2.04E-07GWA-3BR*
Bedrock
1.88E-01
AB-4BR 3.85E-03 1.09E+01
BG-4BR 2.39E-04 6.78E-01
6.51E-022.30E-05GWA-21BR
9.26E-05AB-35BR*
Hydraulic Conductivity
(ft/day)
2.32E-06 6.58E-03
*= Barker and Black solution
TABLE 6-13
ALLEN PACKER TESTS HYDRAULIC CONDUCTIVITY RESULTS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\
Table 6-13 Allen Packer Test Hydraulic ConductivitiesTable 6-13 Allen Packer Test Hydraulic Conductivities Page 1 of 2
Measured Geometric
Mean Measured Geometric Mean
AB-23BRU Falling Head 113.25' - 119.0'3.00E-05 --8.50E-02 --
Constant Head 30' - 35'1.09E-02 3.09E+01
Falling Head 65'1.82E-04 5.16E-01
AB-24D Constant Head 70' - 75'4.68E-03 --1.33E+01 1.33E+01
AB-26D Falling Head 106.4' - 111.4'6.14E-04 --1.74E+00 1.74E+00
AB-28D Falling Head 150' - 155'3.17E-05 --8.99E-02 8.99E-02
AB-29D Falling Head 113' - 118'2.55E-03 --7.23E+00 7.23E+00
AB-23D Falling Head 86' -91' 2.55E-03 --7.23E+00 7.23E+00
Constant Head 145.5' - 150.5 9.10E-06 2.58E-02
Falling Head 116' - 121.5'1.70E-05 4.82E-02
AB-36D Falling Head 87' - 92' 3.44E-03 --9.75E+00 9.75E+00
AB-38D Falling Head 64' - 65.5'8.22E-05 --2.33E-01 2.33E-01
GWA-1D Falling Head 75' - 80'1.25E-04 --3.54E-01 3.54E-01
Falling Head 20' -25'1.04E-04 2.95E-01
Falling Head 53.5'2.38E-05 6.75E-02
Falling Head 115' - 121'1.54E-05 4.37E-02
2.01E-04 -5.71E-01 -
1.09E-02 -3.09E+01 -
9.10E-06 -2.58E-02 -
Prepared by: RAG Checked by: LWD
Notes:
Slug tests were analyzed using the Bouwer-Rice mathmatical model, unless where indicated.
-- No statistics necessary, when only one slug test analyzed
** = Springer-Gelhar solution
cm/sec - centimeter per second
ft/day - feet per day
*= Barker and Black solution - Hydraulic Conductivities were calculated by taking the transmissivity and dividing it by saturated thickness.
LOWEST CONDUCTIVITY
AB-24D 1.41E-03 3.99E+00
AB-35D 1.24E-05 3.53E-02
GWA-6D 3.37E-05 9.54E-02
GEOMETRIC MEAN
HIGHEST CONDUCTIVITY
Deep
Well ID Slug Test
Test Intervaul
(feet below
Ground Surface)
Hydraulic Conductivity
(cm/sec)
Hydraulic Conductivity
(ft/day)
TABLE 6-13
ALLEN PACKER TESTS HYDRAULIC CONDUCTIVITY RESULTS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\
Table 6-13 Allen Packer Test Hydraulic ConductivitiesTable 6-13 Allen Packer Test Hydraulic Conductivities Page 2 of 2
Measured Geometric
Mean Measured Geometric Mean
Constant Head 101' - 106'1.51E-04 4.28E-01
Falling Head 101' - 106'1.46E-05 4.14E-02
Pressure Test 153' - 158'4.10E-05 1.16E-01
Pressure Test 155' - 160'3.30E-05 9.35E-02
Pressure Test 156' - 161'1.40E-06 3.97E-03
Pressure Test 165' - 170'7.10E-07 2.01E-03
Pressure Test 171' - 176'3.40E-06 9.64E-03
Falling Head 33'7.57E-04 2.15E+00
Constant Head 33.4' - 38.4'3.21E-04 9.10E-01
Falling Head 33.4' - 38.4' 1.44E-04 4.08E-01
Constant Head 50' - 55'1.10E-03 3.12E+00
Falling Head 75' 4.05E-05 1.15E-01
Falling Head 75' - 80'1.53E-04 4.34E-01
Step-Drawdown 1 150.7' - 157.7'6.70E-05 1.90E-01
Step-Drawdown 2 150.7' - 157.7'6.10E-05 1.73E-01
Falling Head 151' - 156'3.38E-05 9.58E-02
Step-Drawdown 167.5' - 172.5 4.80E-05 1.36E-01
Step-Drawdown 176.5' - 181.5 2.70E-04 7.65E-01
Step-Drawdown 182.5' - 187.5'5.50E-04 1.56E+00
Step-Drawdown 127' - 132'1.90E-07 5.39E-04
Step-Drawdown 133' - 138'1.90E-06 5.39E-03
Step-Drawdown 144' - 149'9.60E-06 2.72E-02
Step-Drawdown 122' - 129'2.00E-05 5.67E-02
Step-Drawdown 129' - 135' 1.80E-05 5.10E-02
Falling Head 144' - 149'7.32E-05 2.07E-01
Step-Drawdown 150' - 155'6.00E-05 1.70E-01
Step-Drawdown 156' - 161'3.60E-05 1.02E-01
Step-Drawdown 165' - 170' 2.50E-06 7.09E-03
Falling Head 112' - 117'8.62E-04 2.44E+00
Step-Drawdown 127' - 132'9.60E-06 2.72E-02
Step-Drawdown 159' - 165'2.40E-05 6.80E-02
Falling Head 24'1.80E-04 5.10E-01
Falling Head 24' - 29'2.31E-05 6.55E-02
Falling Head 50.33' 8.98E-06 2.55E-02
Constant Head 50.33' - 55.04'2.56E-05 7.26E-02
Step-Drawdown 141' - 146'1.50E-05 4.25E-02
Step-Drawdown 171' - 176'3.60E-05 1.02E-01
Step-Drawdown 181' - 186'5.40E-06 1.53E-02
3.13E-05 -8.86E-02 -
1.10E-03 -3.12E+00 -
1.90E-07 -5.39E-04 -
Prepared by: RAG Checked by: LWD
Notes:
Slug tests were analyzed using the Bouwer-Rice mathmatical model, unless where indicated.
-- No statistics necessary, when only one slug test analyzed
** = Springer-Gelhar solution
cm/sec - centimeter per second
ft/day - feet per day
GEOMETRIC MEAN
HIGHEST CONDUCTIVITY
LOWEST CONDUCTIVITY
*= Barker and Black solution - Hydraulic Conductivities were calculated by taking the transmissivity and dividing it by saturated thickness.
GWA-5BR 5.83E-05 1.65E-01
GWA-6BR 2.24E-05 6.34E-02
GWA-1BR 1.90E-05 5.38E-02
GWA-3BR 2.51E-05 7.11E-02
AB-35BR 1.25E-04 3.53E-01
BG-2BR 1.51E-06 4.29E-03
AB-21BR 1.00E-05 2.84E-02
AB-25BR 1.77E-04 5.02E-01
Bedrock
Well ID Slug Test
Test Intervaul
(feet below
Ground Surface)
Hydraulic Conductivity
(cm/sec)
Hydraulic Conductivity
(ft/day)
Table 6-14. Hydrostratigraphic Layer Properties - Horizontal Hydraulic Conductivity
Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015.Allen 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 19 1.3E-03 7.0E-03 2.3E-04 1.3E-03 8.8E-05 3.3E-02
Fill 4 1.3E-05 6.3E-05 2.6E-06 9.2E-06 2.9E-06 1.1E-04
Alluvium (S)11 4.3E-04 4.5E-03 4.0E-05 9.2E-04 7.1E-06 2.6E-02
M1 29 3.7E-04 1.9E-03 7.4E-05 6.3E-04 2.1E-05 4.7E-03
M2 13 1.8E-04 1.2E-03 2.9E-05 1.5E-04 1.5E-05 4.1E-03
Transition Zone (TZ)20 4.4E-04 3.5E-03 5.5E-05 6.7E-04 9.1E-06 2.1E-02
Bedrock (BR)39 4.1E-05 4.1E-05 5.1E-06 3.6E-05 5.3E-07 2.6E-03
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. Alluvium dataset derived from Allen (N=2), Cliffside (N=3), and Dan River (N=3) and Riverbend (N=3).
Table 6-15. Hydrostratigraphic Layer Properties - Vertical Hydraulic Conductivity
Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015. Allen 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 5 1.6E-04 6.9E-04 3.6E-05 1.5E-04 2.0E-05 7.6E-04
Fill 11 5.8E-07 4.0E-06 8.5E-08 9.2E-07 1.6E-08 6.3E-06
Alluvium (S)4 4.1E-05 4.0E-03 4.1E-07 2.8E-05 2.2E-07 1.5E-02
M1 24 2.9E-05 2.4E-04 3.6E-06 2.6E-05 4.5E-07 1.2E-03
M2 4 8.6E-05 1.5E-04 5.0E-05 9.6E-05 4.0E-05 1.5E-04
Transition Zone (TZ)0 ------
Bedrock (BR)0 ------
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 6-16. Estimated Effective Porosity/Specific Yield and Specific Storage for Upper Hydrostratigraphic Units
(A, F, S, M1 and M2)
Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015. Page 1 of 1
Hydrostratigraphic
Unit N Mean (%)Median (%)Mean +
1SD (%)
Mean -
1SD (%)
Minimum
(%)
Maximum
(%)
Ash 13 13.5%9.0%22.8%4.1%4.5%30.0%
Fill 21 10.4%11.0%15.7%5.1%3.0%20.0%
Alluvium (S)6 21.6%23.3%28.0%15.2%10.0%28.5%
M1 35 17.0%18.0%23.6%10.4%4.8%26.0%
M2 10 28.2%27.5%35.5%20.9%17.0%40.0%
approximately equal in value.
the same range of values.
4. Dataset derived from Allen Steam Station's CSA Investigation and historic Allen Steam Station data.
Effective Porosity/Specific Yield (%)
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
1.5E-05 - 6.2E-05
Specific Storage (1/ft)
-
6.1E-05 - 4.0E-05
3.0E-04 - 1.5E-05
3.0E-04 - 1.5E-05
Table 6-17. Total Porosity, Secondary (Effective) Porosity/Specific Yield, and Specific Storage for Lower Hydrostratigraphic Units (TZ and BR)
Hydrostratigraphic Unit
Transition Zone (TZ)
Bedrock (BR)
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.
Specific Storage (1/ft)
1.0E-06 - 2.1E-05
< 1.0E-06
Secondary (Effective)
Porosity / Specific Yield
(%)
5.0 - 10.0
2.0 - 5.0
Total Porosity (%)
1.0 - 10.0
0.01 - 1.0
Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015. Allen Steam Station
Page 1 of 1
Table 6-18. Field Permeability Test Results
Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015.

Allen Steam Station
Page 1 of 2

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-21BR Well Point - Constant Head 101 106 - 1.50E-04 M2
AB-21BR Packer 171 176 - 3.40E-06 BR
AB-21BR Packer 165 170 - 7.10E-07 BR
AB-21BR Packer 156 161 - 1.40E-06 BR
AB-21BR Packer 155 160 - 3.30E-05 BR
AB-21BR Packer 153 158 - 4.10E-05 BR
AB-23BRU Well Point - Falling Head 113.3 119 - 3.00E-05 BR
AB-24D Well Point - Constant Head 30 35 - 1.10E-02 A
AB-24D Well Point - Constant Head 70 75 - 4.70E-03 M1
AB-24D Flush Bottom 62 - 1.80E-04 - M1
AB-25BR Flush Bottom 33 - 7.60E-04 - A
AB-25BR Well Point - Constant Head 33.4 38.4 - 3.20E-04 A
AB-25BR Well Point - Falling Head 33.4 38.4 - 1.40E-04 A
AB-25BR Well Point - Constant Head 50 55 - 1.10E-03 S
AB-25BR Well Point - Falling Head 75 80 - 1.50E-04 M2
AB-25BR Packer 150.7 157.7 - 6.70E-05 BR
AB-25BR Packer 139 149 - 5.70E-05 BR
AB-25BR Flush Bottom 50 - 1.50E-02 - S
AB-25BR Flush Bottom 75 - 4.10E-05 - M2
AB-25D Well Point - Falling Head 106.4 111.4 - 6.10E-04 BR
AB-28D Well Point - Falling Head 150 155 - 3.20E-05 BR
AB-29D Well Point - Falling Head 113 118 - 2.60E-03 TZ
AB-33D Well Point - Falling Head 86 91 - 6.00E-05 M2
AB-35BR Well Point - Falling Head 151 156 - 3.40E-05 TZ
AB-35BR Packer 182.5 187.5 - 5.50E-04 BR
AB-35BR Packer 176.5 181.5 - 2.70E-04 BR
AB-35BR Packer 167.5 172.5 - 4.80E-05 BR
AB-35D Well Point - Falling Head 116 121.5 - 1.70E-05 M2
AB-35D Well Point - Falling Head 145.5 150.5 - 9.10E-06 TZ
AB-36D Well Point - Falling Head 87 92 - 3.40E-03 M2
AB-38D Well Point - Falling Head 64 65.5 - 8.20E-05 BR
BG-2BR Packer 127 132 - 1.97E-07 BR
BG-2BR Packer 133 138 - 1.96E-06 BR
BG-2BR Packer 144 149 - 9.6E-06 BR
GWA-1BR Packer 122 129 - 2.00E-05 BR
Table 6-18. Field Permeability Test Results
Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015.

Allen Steam Station
Page 2 of 2

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
GWA-1BR Packer 115 122 - 7.70E-05 BR
GWA-1BR Packer 129 135 - 1.80E-05 BR
GWA-1D Well Point - Falling Head 75 80 - 1.30E-04 TZ
GWA-3BR Well Point - Falling Head 144 149 - 7.30E-05 M2
GWA-3BR Packer 165 170 - 2.20E-06 BR
GWA-3BR Packer 156 161 - 3.20E-05 BR
GWA-3BR Packer 150 155 - 5.20E-05 BR
GWA-5BR Well Point - Falling Head 112 117 - 8.60E-04 BR
GWA-5BR Packer 127 132 - 2.30E-05 BR
GWA-5BR Packer 133 138 - 2.40E-05 BR
GWA-5BR Packer 159 165 - 9.60E-06 BR
GWA-6BR Well Point - Falling Head 24 29 - 2.30E-05 M1
GWA-6BR Well Point - Falling Head 50.3 55 - 2.60E-05 M1
GWA-6BR Packer 181 186 - 5.40E-06 BR
GWA-6BR Packer 171 176 - 3.60E-05 BR
GWA-6BR Packer 141 146 - 1.50E-05 BR
GWA-6BR Flush Bottom 24 - 1.80E-04 - M1
GWA-6BR Flush Bottom 50.3 - 9.00E-06 - M1
GWA-6D Well Point - Falling Head 20 25 - 1.00E-04 M1
GWA-6D Well Point - Falling Head 115 121 - 1.50E-05 M2
GWA-6D Flush Bottom 53.5 - 2.40E-05 - M1
Notes:
1. Refer to Section 11.2.1 for discussion of field procedures
2. Refer to Appendix H for calculation worksheets
3. For the pressure test, the thickness of saturated material above a relatively impermeable bed is assumed to be
600 feet for a fractured bedrock system. Water flow at this depth or greater in such systems is well documented
in the Piedmont region (Daniel et al., 1989)

Source: HDR, Comprehensive Site Assessment Report Allen Creek Steam Station Ash Basin, August 23, 2015.

Allen Steam Station
Page 1 of 1
Table 6-19. Laboratory Permeability Test Results
Borehole Category of Test Depth 1 of
Test (ft bgs)
Depth 2 of Test
(ft bgs)
Vertical
Hydraulic
Conductivity 'k'
(cm/sec)
Hydrostratigraphic
Layer
AB-20D Laboratory Conductivity 75.0 76.5 9.68E-05 M2
AB-20S Laboratory Conductivity 24.0 26.0 4.45E-07 M1
AB-20S Laboratory Conductivity 3.0 4.5 2.79E-04 F/A
AB-21D Laboratory Conductivity 20.0 22.0 2.04E-05 A
AB-21D Laboratory Conductivity 62.0 64.0 3.60E-06 M1
AB-22D Laboratory Conductivity 60.0 62.0 8.23E-07 F
AB-25BR Laboratory Conductivity 31.0 33.0 1.52E-04 A
AB-25BR Laboratory Conductivity 48.0 50.0 1.86E-05 S
AB-25BR Laboratory Conductivity 73.0 75.0 1.49E-04 M2
AB-26D Laboratory Conductivity 43.0 45.0 9.68E-07 F
AB-26D Laboratory Conductivity 103.0 105.0 1.36E-05 M1
AB-27D Laboratory Conductivity 28.5 30.5 4.23E-06 F
AB-31D Laboratory Conductivity 48.5 50.5 2.22E-07 S
AB-32S Laboratory Conductivity 15.0 17.0 1.73E-06 F
AB-32S Laboratory Conductivity 50.0 52.0 2.08E-06 F
AB-35S Laboratory Conductivity 68.0 70.0 6.84E-07 M1
AB-35S Laboratory Conductivity 58.0 60.0 1.20E-06 A/M1
AB-35S Laboratory Conductivity 18.0 20.0 2.92E-05 F/A
AB-36D Laboratory Conductivity 10.0 12.0 3.29E-04 M1
AB-36D Laboratory Conductivity 30.0 32.0 1.88E-06 M1
AB-36S Laboratory Conductivity 23.0 25.0 7.63E-06 M1
AB-38D Laboratory Conductivity 0.0 2.0 5.35E-04 A
GWA-1S Laboratory Conductivity 18.0 20.0 3.06E-05 M1
GWA-3S Laboratory Conductivity 22.0 24.0 4.24E-05 S
GWA-5S Laboratory Conductivity 24.0 26.0 6.35E-06 F
GWA-6D Laboratory Conductivity 18.5 20.5 1.98E-04 M1
GWA-7S Laboratory Conductivity 28.0 30.0 5.67E-06 M1
GWA-8S Laboratory Conductivity 20.0 22.0 1.61E-04 M1
GWA-8S Laboratory Conductivity 73.0 75.0 1.11E-05 M1
GWA-9S Laboratory Conductivity 19.0 21.0 1.22E-04 M1
Notes:
1. Vertical hydraulic conductivity values from laboratory testing in accordance with ASTM Standard D 5084
2. Laboratory conductivity results in which test interval bridges hydrostratigraphic layers were not used in the
statistical analysis.
3. Refer to Appendix H for laboratory reports.

TABLE 7-1
PROVISIONAL BACKGROUND THRESHOLD VALUES FOR SOIL
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\
Table 7-1 - Soil PBTVs Page 1 of 1
Parameter Reporting Unit PSRG Protection
of Groundwater PBTV
pH*S.U.NE 4.43 - 6.8
Aluminum mg/kg NE 26,991
Antimony mg/kg 0.9 0.9
Arsenic mg/kg 5.8 3.7
Barium mg/kg 580 233
Beryllium mg/kg 63 1.78
Boron mg/kg 45 23.4
Cadmium mg/kg 3 0.368
Calcium mg/kg NE 859.9
Chloride mg/kg NE 540
Chromium mg/kg 3.8 20.42
Cobalt mg/kg 0.9 48.6
Copper mg/kg 700 78.35
Iron mg/kg 150 69,316
Lead mg/kg 270 12.31
Magnesium mg/kg NE 15,100
Manganese mg/kg 65 1,786
Mercury mg/kg 1 0.0233
Molybdenum mg/kg NE 4.6
Nickel mg/kg 130 10.91
Nitrate (as N)mg/kg NE ND
Potassium mg/kg NE 14,097
Selenium mg/kg 2.1 2.1
Sodium mg/kg NE 461
Strontium mg/kg NE 14.41
Sulfate mg/kg NE 540
Thallium mg/kg 0.28 0.28
Vanadium mg/kg 6 132.2
Zinc mg/kg 1200 112.1
Notes:
Values reported represent NCDEQ accepted and/or recommended values per October 11, 2017 letter Zimmerman to Draovitch
* - Upper and lower threshold values calculated for parameter
PBTV - Provisional Background Threshold Value
mg/kg - milligrams per kilogram
NA - Not Analyzed
ND - Not Detected
NE - Not Established
Prepared by: JHG Checked by:JLK
TABLE 7-2
POTENTIAL SECONDARY SOURCE SOIL ANALYTICAL RESULTS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\Table 7-2 Secondary Source Soils Page 1 of 1
Reporting Units 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
PSRG Protection of Groundwater NE 0.9 5.8 580 63 45 3 NE 3.8 0.9 150 65 NE 130 2.1 NE NE 0.28 6 360000
Provisional Background Threshold Values 4.3 - 6.8 0.9 3.7 233 1.78 23.4 0.368 540**20.42 48.6 69316 1786 4.6 10.91 2.1 14.41 540**0.28 132.2 20.42
Sample ID Sample Collection
Date pH Antimony Arsenic Barium Beryllium Boron Cadmium Chloride Chromium Cobalt Iron Manganese Molybdenum Nickel Selenium Strontium Sulfate Thallium Vanadium Cr(III)
AB-20D (28.5-30)03/17/2015 5.4 j <3.6 <3.6 47.1 0.26 j <18 <0.43 <341 9.6 4.4 25600 300 <0.72 0.75 <3.6 1.3 <341 <3.6 71.6 9.6
AB-20D (38.5-40)03/17/2015 5.9 j <3.2 <3.2 138 0.45 j <31.9 <0.38 <311 3.6 12.3 20100 1140 <0.64 2.8 <3.2 19.3 <311 <3.2 59.8 3.6
AB-21BR (156-157)05/14/2015 7.3 j <5.1 <5.1 94.9 <0.25 <12.6 <0.61 <267 2.5 8.8 20000 563 <2.5 1 j <5.1 18.5 <267 <5.1 35.5 2.5
AB-22D (13-14.5)06/15/2015 7.0 j <8.1 <8.1 106 <0.4 <20.2 <0.97 <405 6.6 6.4 j 29700 332 <4 3.5 <8.1 2.7 j <405 <8.1 85.1 6.6
AB-22D (33-34.5)06/15/2015 5.7 j <9.3 <9.3 160 0.34 j <23.3 <1.1 <464 12.5 16.5 34800 1600 <4.7 9 <9.3 7.1 <464 <9.3 93.3 12.5
AB-22D (60-62)06/15/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
AB-25BR (143-143)04/11/2015 8.1 j <5.6 <5.6 318 0.23 j <14 <0.67 <266 22.5 26.4 20500 2360 <2.8 35 <5.6 53.1 <266 <5.6 44.2 22.5
AB-25BRU (52.3-53.7)03/20/2015 6.8 j <3.1 3.2 1420 1.3 <62.3 1.2 <308 11.7 931 24300 19500 22.7 27.5 5 34.5 <308 <3.1 69.9 11.7
AB-25BRU (62.3-63.7)03/20/2015 5.6 j <3.5 <3.5 237 0.82 <17.7 <0.43 <341 2.7 10.9 15900 573 <0.71 2.8 2.5 j 12.6 <341 <3.5 42.9 2.7
AB-26D (13.5-15)06/16/2015 5.5 j <6.4 <6.4 46.4 <0.32 <16 <0.77 <320 15.9 14.9 33800 800 <3.2 4.8 <6.4 2 j <320 <6.4 76.5 15.9
AB-26D (33.5-35)06/16/2015 5.6 j <6.2 <6.2 180 j 0.35 <15.5 <0.74 <322 7.4 j 14.2 28100 890 j <3.1 5.1 <6.2 2.4 j <322 <6.2 69.8 7.4 j
AB-26D (95-105)06/17/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
AB-27D (8.5-10)04/08/2015 5.3 <6.4 <6.4 47.3 0.52 <16.1 <0.77 <325 13.9 5 j 43900 280 <3.2 2.5 <6.4 4 <325 <6.4 101 13.9
AB-27D (18.5-20)04/08/2015 5.6 <6.8 <6.8 160 0.61 <17 <0.82 <346 10.6 14.9 41500 658 <3.4 6.8 <6.8 5.8 <346 <6.8 104 10.6
AB-27D (23.5-25)04/08/2015 5.3 <7 <7 33.7 j+0.21 <17.6 <0.85 <341 24.2 4.8 j 43500 j-203 j+<0.7 2.3 <7 2.2 <341 <7 100 24.2
AB-27D (28.5-30.5)04/07/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
AB-28D (3-5)04/13/2015 7.7 j <7.1 33.5 200 2.3 17.8 <0.85 <356 15.6 9.7 11800 84.7 <3.5 15.6 <7.1 132 239 j <7.1 63.9 15.6
AB-28D (14-15.5)04/13/2015 6.8 j <6.8 <6.8 76.3 0.36 <16.9 <0.81 <323 16 6 j 39100 275 <3.4 2.2 <6.8 21.6 <323 <6.8 85 16
AB-28D (59.9-60.5)04/13/2015 5.9 j <7.4 <7.4 119 0.64 <18.4 <0.88 <369 47.7 10.1 21400 290 <3.7 17.2 <7.4 37.2 <369 <7.4 28.6 47.7
AB-28D (69-70.5)04/13/2015 6.5 j <6.7 <6.7 138 0.3 j <16.7 <0.8 <321 4.4 9.7 18900 228 <3.3 3.5 <6.7 16.7 <321 <6.7 38.3 4.4
AB-31D (13.5-15)04/20/2015 NA <5.9 <5.9 60.1 0.26 j 37 <0.71 <292 12.7 8.7 47600 350 j+<3 2.6 <5.9 3.5 170 j <5.9 67.8 12.7
AB-31D (33.5-35)04/20/2015 NA <6.6 <6.6 69.9 0.44 13.7 j <0.79 <337 13 14.6 15400 297 j+<3.3 4.9 <6.6 3.1 j <337 <6.6 42.5 13
AB-32S (13.5-15)05/05/2015 6.5 j <6.4 3.4 j+117 0.96 23.7 j+<0.76 <301 17.2 56.8 34300 952 <3.2 6 <6.4 5.6 <301 <6.4 80.7 17.2
AB-32S (33.5-35)05/05/2015 6.1 j <6.1 <30.7 97.9 0.66 20 j+<0.74 <297 14.5 82.3 26800 822 <3.1 10.4 <6.1 4.2 <297 <6.1 77.8 14.5
AB-32S (50-55)05/06/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
AB-33S (30-35)05/06/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
AB-34D (14-14)02/10/2015 6.8 <3.5 39.8 220 1.7 18.5 <0.41 <349 14.9 5.8 5090 58.1 0.6 j 10.4 3.7 101 193 j <3.5 39.9 14.9
AB-34D (34-34)02/10/2015 4.2 <3.5 <3.5 105 0.36 j 17.9 j <0.41 <339 2.4 j 18.4 11100 1150 <6.9 7.1 <3.5 2.8 255 j <3.5 37.2 2.4 j
AB-34D (44-44)02/10/2015 5.3 <3.4 <3.4 206 0.62 19.6 j <0.41 <339 13.6 12 13100 888 <6.8 9.9 <3.4 13.2 <339 <3.4 42.7 13.6
AB-34S (33-35)03/12/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
AB-35BR (185-185)03/26/2015 8.0 <2.5 1.5 j 14.1 0.071 2 j <0.31 <260 0.42 <2.5 2130 54.9 <0.51 <0.25 2 j 7.2 <260 <2.5 2.7 0.42
AB-35S (72-72)02/25/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
AB-36S (23-25)06/23/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
AB-39D (53.5-55)04/06/2015 7.3 j <7.4 <7.4 206 0.43 <18.5 <0.89 <365 3.5 17 27800 632 <3.7 <1.8 <7.4 31.5 <365 <7.4 72.8 3.5
GWA-01D (8.5-10)05/18/2015 5.5 j <6.7 <6.7 37.5 0.3 j <16.7 <0.8 <328 21.7 <6.7 40100 186 <3.3 <1.7 3.4 j <3.3 <328 <6.7 104 21.7
GWA-01D (13.5-15)05/18/2015 5.3 j <8.8 <8.8 126 0.74 <21.9 <1.1 <415 10.2 7.4 j 37300 410 <4.4 2.5 3.5 j <4.4 <415 <8.8 136 10.2
GWA-01D (68.5-70)05/18/2015 7.0 j <6.9 <6.9 158 0.39 <17.3 <0.83 <337 18.3 8.9 16400 551 <3.5 12.3 <5.2 18.1 <337 <6.9 40.7 18.3
GWA-01D (81-82)05/28/2015 NA <5.4 <5.4 115 <0.27 13.9 <0.65 NA 5 8.2 18200 412 <2.7 4.7 <5.4 15.3 NA <5.4 46.3 5
GWA-01S (18-20)05/20/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
GWA-02D (13.5-15)05/27/2015 5.6 <8.1 <8.1 246 0.77 <20.2 <0.98 <415 7 8.2 40600 433 <4 6 <8.1 5.8 <415 <8.1 59.6 7
GWA-02D (23.5-25)05/27/2015 5.9 <6.8 <6.8 218 0.74 <16.3 <0.81 <333 7 10 28100 482 <3.3 5.7 <6.8 10.2 <333 <6.8 54.7 7
GWA-02D (33.5-35)05/27/2015 6.1 <6.3 <6.3 222 0.72 <15.4 <0.75 <320 4.2 10.2 23000 496 <3.1 4.5 <6.3 14.7 <320 <6.3 52.9 4.2
GWA-03BR (8.5-10)04/11/2015 5.3 j <7.3 <7.3 81.4 0.27 j <18.3 <0.88 <360 5.7 12.7 23700 309 <3.7 2.1 <7.3 10.5 <360 <7.3 64.2 5.7
GWA-03BR (13.5-15)04/11/2015 5.4 j <6.5 <6.5 69.2 0.31 j <16.2 <0.78 <329 3.5 7.9 18700 468 <3.2 <1.6 <6.5 9.2 <329 <6.5 45.3 3.5
GWA-03BR (58.5-60)04/11/2015 6.7 j <6.3 <6.3 80.2 0.19 j <15.7 <0.75 <303 1.9 5.2 j 13800 451 <3.1 1.4 j <6.3 25.8 <303 <6.3 30.5 1.9
GWA-03BR (147.5-147.5)05/07/2015 7.1 j <6 <6 32 j+<0.06 4.3 j+<0.72 <299 0.63 3.9 j-8180 j-213 j+<0.6 0.8 <6 6.2 j+<299 <6 16.1 j+0.63
GWA-03S (22-24)04/24/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
GWA-04D (19-20)05/27/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
GWA-04D (58-65)05/20/2015 6.7 j <5.8 <5.8 112 0.21 j 17.4 <0.7 <279 6.6 9.1 21000 531 <2.9 4.2 <5.8 26.3 <279 <5.8 50.4 6.6
GWA-04S (6.5-8.5)05/21/2015 5.1 j <6.5 5.5 j 34.5 0.71 26.7 <0.78 <323 18.6 6.2 j 44200 156 <3.3 6.6 <6.5 3 j <323 <6.5 107 18.6
GWA-04S (8-10)05/27/2015 6.0 j <7.4 <7.4 121 0.43 19.3 <0.89 <377 14.1 9.3 24600 622 <3.7 3.8 <7.4 5.8 <377 <7.4 73 14.1
GWA-05D (2-4)05/14/2015 5.7 j <6.2 <6.2 143 0.75 <15.5 <0.74 <292 9.5 16.2 24200 578 <3.1 6.2 2.5 j 7 489 <6.2 70.8 9.5
GWA-05D (13.5-15)05/14/2015 5.4 j <6.4 <6.4 49.5 0.28 j <16 <0.77 <302 10.6 4.7 j 25800 226 <3.2 1.2 j <4.8 <3.2 171 j <6.4 54.9 10.6
GWA-05D (83.5-85)05/14/2015 7.1 j <6.2 <6.2 79.1 <0.31 <15.6 <0.75 <295 3.1 5.2 j 14000 301 <3.1 1.1 j <4.7 13.7 <295 <6.2 33.9 3.1
GWA-05D (119-120)05/28/2015 NA <5.3 <5.3 169 <0.27 17.3 <0.64 NA 1.7 12 24200 506 <2.7 1.7 <5.3 17.5 NA <5.3 65 1.7
GWA-05S (24-26)05/15/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
GWA-06BR (129-130)05/14/2015 6.8 j <4.9 <4.9 188 <0.25 <12.4 <0.59 <248 2.2 8.9 20200 603 <2.5 0.95 j <4.9 13.8 <248 <4.9 41.8 2.2
GWA-06D (28.5-30)03/03/2015 3.6 j <3.4 2.1 j 145 0.41 15.7 <0.4 <332 2.3 21.7 18600 1350 <0.67 6.3 1.8 j 7.9 745 <3.4 56.4 2.3
GWA-06D (33.5-35)03/03/2015 3.8 j <3.7 3.1 j 155 0.94 28.5 <0.45 <373 3.6 39.5 30700 1990 <0.75 6.5 3.2 j 9.8 1590 <3.7 95.3 3.6
GWA-06D (88.5-105.5)03/03/2015 6.2 j <3 <3 176 <0.36 14.2 <0.36 <283 3.6 8.4 17500 370 <0.59 3.8 <3 22.1 <283 <3 53.7 3.6
GWA-07D (22-23.5)02/23/2015 4.7 j <1.3 0.69 j 130 0.26 <3.3 <0.16 <332 1.1 17.4 13500 1020 <0.66 1 1.1 j 1.5 <332 <1.3 33 1.1
GWA-07D (32-33.5)02/23/2015 5.7 j <1.4 0.82 j 153 0.28 j <3.6 <0.17 <355 1.2 12.1 15500 1280 <0.71 1.2 0.85 j 2.7 <355 <1.4 40 1.2
GWA-07D (107-123)02/25/2015 7.2 j <1.2 0.77 j 98.8 0.19 <2.9 <0.14 <288 3.4 7 13400 450 <0.58 1.2 <1.2 14.3 <288 <1.2 35.6 3.4
GWA-07S (28-30)03/11/2015 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
GWA-15D (1.9-2)06/08/2015 7.0 <7.2 <7.2 55.9 <0.36 <18 <0.86 <374 10.1 3.8 j 22400 302 <3.6 3.6 <7.2 6.2 <374 <7.2 57.4 10.1
GWA-15D (9-11)06/08/2015 6.0 <6 <6 45.9 0.78 <15.1 <0.72 <308 17 6.3 21400 131 <3 12.8 <6 18.6 <308 <6 112 17
GWA-15D (19-21)06/08/2015 6.6 <6.8 <6.8 124 0.46 <17.1 <0.82 <344 112 23.4 24400 536 <3.4 95.1 <6.8 93.5 <344 <6.8 42.3 112
GWA-15D (29-31)06/08/2015 6.8 <10.7 <10.7 244 0.33 j <26.8 <1.3 <540 6.6 14.2 35100 1070 <5.4 10.5 <10.7 37.3 <540 <10.7 90.5 6.6
GWA-15D (66-68)06/09/2015 7.5 <6.2 <6.2 115 <0.31 <15.4 <0.74 <301 4.1 7.5 19200 569 <3.1 3.6 <6.2 20.1 <301 <6.2 38.7 4.1
SB-02 (18.5-20)02/11/2015 5.5 <3.5 <7 215 0.61 40.7 <0.84 <345 3.8 30.1 39800 1640 <7 3.2 j <7 1.2 <345 <3.5 87.3 3.8
SB-02 (23.5-25)02/11/2015 5.3 <3.2 <3.2 119 0.21 j 4.8 <0.38 <311 3.4 7.2 5060 455 <0.63 1.8 <3.2 3.5 <311 <3.2 13.2 3.4
SB-02 (33.5-35)02/11/2015 5.6 <3.6 <3.6 183 2 78.5 j <0.43 <357 5.2 24.6 73400 800 <3.6 28.7 <3.6 46.9 <357 <3.6 191 5.2
SB-06 (68.5-70)02/12/2015 7.4 j <1.4 2.1 36.4 j-0.25 <3.6 <0.17 <348 16.7 2.3 23700 j+53.4 j+<0.72 1.1 <1.4 11.6 <348 <1.4 58.2 16.7
SB-06 (78.5-80)02/12/2015 6.5 j <1.2 <1.2 46.1 j-0.23 <3 <0.15 <306 4.7 2 5720 j+29.1 j+<0.61 0.7 <1.2 21.5 <306 <1.2 22.2 4.7
SB-06 (83.5-85)02/12/2015 7.3 j <1.2 1.9 130 j-0.43 <3.1 <0.15 <321 3.5 10.8 20200 j+407 j+<0.62 3.1 <1.2 20 <321 <1.2 61.5 3.5
SB-07 (8.5-10)03/19/2015 4.0 j <3.2 15.2 96.4 <0.64 <32 <0.38 <314 7.6 6.5 43000 407 0.37 j 2.7 3.4 13.5 1650 <3.2 43.8 7.6
SB-07 (13.5-15)03/19/2015 4.9 j <3.3 <3.3 143 0.4 j <32.6 <0.39 <341 3.9 12.6 18800 784 <0.65 2.1 <3.3 1.8 <341 <3.3 47.6 3.9
Prepared by: RKD Checked by: JLK
Notes:
Bold highlighted concentration indicates exceedance of the Inactive Hazardous Sites Branch PSRG Table October 2016 for Protection of Groundwater
Bold highlighted concentration indicates exceedance of Provisional Background Threshold Value
< - 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.
j+ - Estimated concentration, biased high.
mg/kg - Milligrams per kilogram
NA - Not analyzed
NE - Not established
S.U. - Standard Unit
TABLE 
PROVISIONAL BACKGROUND THRESHOLD
VALUES FOR GROUNDWATER
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\Table 10-1 - Allen GW BG Threshold Values.pdf Page 1 of 1
Shallow Deep†Bedrock†
pH*S.U.6.5-8.5 5.2 - 7.5 6.7 - 8.4 7.5 - 7.8
Alkalinity mg/L NE 189 74 83.4
Aluminum µg/L NE 427 540 301
Antimony µg/L 0.9 0.7 0.5
Arsenic µg/L 10 0.42 1.4 0.4
Barium µg/L 700 52.4 21
Beryllium µg/L 0.127 0.2 0.1
Bicarbonate mg/L NE 189 74 83.4
Boron µg/L 700 50 50 50
Cadmium µg/L 2 0.08 0.08 0.08
Calcium mg/L NE 20 14.2 20.4
Carbonate mg/L NE 5 5 5
Chloride mg/L 250 10.9 6 1.6
Chromium (VI)1 µg/L 1$7.7 1.2 0.23
Chromium µg/L 10 6.93 6.8 5.6
Cobalt µg/L 4.3 0.5 0.27
Copper µg/L 1000 2.3 1.7 1.2
Iron µg/L 300 835 555 284
Lead µg/L 15 0.17 0.1 0.1
Magnesium mg/L NE 5.6 4.6 4.8
Manganese µg/L 50 578 60.4 39.1
Mercury µg/L 1 0.2 2.4 0.2
Methane µg/L NE 11.4 38.9 10
Molybdenum µg/L NE 0.85 304.7
Nickel µg/L 100 4.02 8.1 3.4
Nitrate + Nitrite*mg-N/L 
1.8 0.94 0.41
Potassium mg/L NE 5.24 9.89 6.06
Selenium µg/L 20 0.5 0.5 0.5
Sodium mg/L NE 15.2 28.3 7.71
Strontium µg/L NE 286 200 106
Sulfate mg/L 250 3.64 16.2 2.9
Sulfide mg/L NE 0.1 0.12 0.1
TDS mg/L 500 181 126 147
Thallium µg/L 0.1 0.1 0.1
TOC mg/L NE 18 11 5.6
Vanadium µg/L 0.3∆5.3 9.6 10.8
Zinc µg/L 1000 8017.3 15.3
Radium (Total)pCi/L NE 1.39 0.613 1.1
Uranium (Total)µg/mL NE 0.002 0.0005 0.0004
Provisional Background Threshold Values
NCAC 02L StandardReporting UnitParameter
Prepared by: JHG Checked by: JLK
0.2∆
1∆
4∆
1∆
Notes:
Values reported represent NCDEQ accepted and/or recommended values per October 11, 2017 letter Zimmerman to Draovitch
Data inclusive of Q2 2017 only
*Upper and lower tolerance limits calculated for parameter
**ThH$1&$&/6WDQGDUGLV Pg//IRU1LWUDWHDQGPg//IRU1LWULWHDGGHGIRUDWRWDORIPg// mg
∆ - Interim Maximum Allowable Concentrations (IMACs) of 15A NCAC .02L Standard, Appendix 1, April 1, 2013
† - Provisional; dataset contains less than 10 valid samples
TDS - Total Dissolved Solids
TO& TRWDO2OUgDQLF&DUERQ
ug//PLFURgUDPVSHUOLWHU
ug/P/PLFURgUDPVSHUPLOOLOLWHU
Uranium (Total) - Uranium-233, Uranium-234, Uranium-236, and Uranium-238 combined
1 - Hexavalent chromium does not have a NC 2L/IMAC standard; therefore, the NC 2L standard for total chromium is relied upon as a surrogate. mg-N/L - Milligrams nitrogen per liter
mg/L - milligrams per liter
NE - Not Established
pCi/L - picocuries per liter
Radium (Total) - Radium-226 and Radium-228 combined
S.U. - Standard Unit
TABLE 10-2
CHARGE BALANCE SUMMARY
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\
Table 10-2 Anion - Cation Allen Page 1 of 5
Sample Locations Anions (meq/L)1 Cations (meq/L)1 % Difference
AB-01R 5.40 5.73 3.01
AB-02 0.23 0.18 13.32
AB-02D 0.75 0.78 2.09
AB-04BR 1.82 2.45 14.62
AB-04D 0.95 1.23 12.75
AB-04S 1.16 1.26 4.33
AB-05 0.23 0.24 1.61
AB-06A 1.31 1.31 0.09
AB-06R 1.21 1.27 2.56
AB-08 0.90 1.94 36.50
AB-09D 2.32 2.37 1.00
AB-09S 2.11 1.64 12.62
AB-10D 1.38 1.41 1.14
AB-10S 1.74 1.74 0.05
AB-11D 1.08 1.18 4.75
AB-12D 1.30 1.72 13.98
AB-12S 0.17 0.21 10.26
AB-13D 1.15 1.34 7.49
AB-13S 0.62 0.76 10.53
AB-14BR 1.36 1.59 7.77
AB-14D 1.10 1.20 4.77
AB-20D 1.34 1.58 8.40
AB-20S 9.91 11.30 6.56
AB-21BRL 1.88 1.94 1.74
AB-21S 9.38 9.60 1.15
AB-21SL 5.66 5.84 1.56
AB-22BR 4.03 4.18 1.93
AB-22D 3.33 3.40 1.09
AB-22S 0.74 0.63 7.98
AB-23S 1.46 1.61 5.05
AB-24BR 1.04 1.15 4.95
AB-24S 2.08 2.12 0.90
AB-24SL 1.92 2.11 4.86
AB-25S 3.75 3.90 1.91
AB-25SL 3.75 3.91 2.02
AB-26D 2.10 2.25 3.38
AB-26S 2.14 2.02 2.82
AB-27BR 2.29 2.50 4.38
AB-27D 2.78 2.95 2.84
AB-27S 3.73 3.81 1.06
AB-28S 5.61 5.67 0.52
AB-29D 1.93 1.94 0.45
AB-29S 2.77 2.45 6.20
AB-30D 1.41 1.53 4.05
AB-30S 3.34 3.44 1.58
AB-31S 2.76 2.70 1.17
AB-32D 1.60 1.69 2.76
AB-32S 1.00 0.74 14.74
AB-33D 1.75 2.16 10.70
AB-33S 11.90 12.60 2.93
AB-34D 0.92 1.06 6.80
AB-34S 6.00 4.63 12.88
AB-35BR 1.27 1.42 5.35
AB-35S 9.54 9.68 0.75
AB-36D 1.42 1.56 4.90
AB-36S 2.27 2.42 3.14
AB-37D 1.20 1.55 12.49
AB-37S 0.84 1.07 11.64
AB-38BR 2.80 3.08 4.72
Allen
TABLE 10-2
CHARGE BALANCE SUMMARY
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\
Table 10-2 Anion - Cation Allen Page 2 of 5
Sample Locations Anions (meq/L)1 Cations (meq/L)1 % Difference
Allen
AB-38D 2.52 2.75 4.31
AB-38S 2.51 2.57 1.21
AB-39D 2.81 3.02 3.64
AB-39S 3.23 2.43 14.14
Active Ponded 1 4.49 4.53 0.55
AL1 0.93 1.47 22.62
AL2 1.13 1.59 16.93
AL3 0.44 0.66 20.28
AL5 0.69 0.89 12.96
AL6 0.57 0.82 18.27
AL7 1.06 1.57 19.30
AL8 1.03 1.54 19.80
AL9 1.33 2.10 22.59
AL11 0.77 1.12 18.60
AL12 1.14 1.78 21.93
AL14 1.78 2.67 20.08
AL15 1.27 1.92 20.46
AL16 0.79 1.13 17.72
AL17 0.92 1.39 20.27
AL19 1.06 1.65 21.91
AL20 0.91 1.38 20.69
AL21 1.15 1.45 11.52
AL22 1.38 1.81 13.45
AL23 0.75 1.19 22.75
AL24 1.00 1.38 15.95
AL25 1.02 1.78 27.00
AL26 1.04 1.62 21.63
AL27 1.19 1.75 19.17
AL28 0.56 0.83 87.27
AL29 0.52 0.84 23.36
AL30 1.08 1.44 14.46
AL31 0.56 0.77 15.78
AL32 0.77 1.09 17.19
AL33 0.62 0.84 15.29
AL34 0.72 1.18 24.18
AL39 Well A 0.63 0.88 16.57
AL39 Well B 1.38 1.94 16.73
AL40 0.41 0.67 23.75
AL41 0.31 0.48 22.09
AL42 0.55 0.79 17.66
AL44 0.70 0.97 16.06
AL45 0.45 0.75 24.96
AL47 0.98 2.32 40.40
AL48 0.70 1.16 24.97
AL49 1.13 1.58 16.50
AL50 Well A 1.26 1.72 15.43
AL50 Well B 0.41 0.68 25.21
AL50 Well C 0.91 1.17 12.17
AL51 1.16 2.31 33.20
AL52 1.13 1.83 23.90
AL53 0.14 1.14 78.02
AL54 1.33 1.69 12.04
AL55 0.81 1.22 20.16
AL56 0.95 1.39 18.72
AL57 1.02 1.58 21.58
AL58 1.43 2.07 18.25
AL59 0.97 1.48 20.82
AL60 1.53 2.61 26.23
AL61 1.29 1.95 20.34
TABLE 10-2
CHARGE BALANCE SUMMARY
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\
Table 10-2 Anion - Cation Allen Page 3 of 5
Sample Locations Anions (meq/L)1 Cations (meq/L)1 % Difference
Allen
AL62 0.20 1.71 79.39
AL63 0.55 2.09 58.57
AL64 1.77 2.89 24.05
AL65 1.52 2.18 17.93
AL66 1.05 1.91 29.35
AL67 1.67 2.33 16.45
AL68 1.49 2.29 20.96
AL69 1.01 1.64 23.70
AL70 1.54 2.23 18.49
AL71 1.47 2.35 22.94
AL72 1.40 2.25 23.48
AL73 1.15 1.64 17.42
AL74 1.45 2.07 17.77
AL75 0.68 0.98 17.71
AL76 0.56 0.91 88.30
AL77 0.99 1.65 24.93
AL78 0.39 0.70 28.28
AL79 0.90 1.27 17.15
AL81 0.99 1.56 22.33
AL82 1.23 2.43 32.85
AL83 1.32 2.23 25.72
AL84 0.95 1.61 25.90
AL85 0.36 0.59 24.16
AL88 0.53 0.78 19.23
AL89 0.63 0.97 21.43
AL90 0.75 1.15 20.90
AL91 0.84 1.18 17.14
AL92 0.69 1.15 24.90
AL93 0.61 0.88 18.43
AL94 1.53 2.02 13.64
AL96 0.66 0.91 16.27
AL97 1.41 1.95 15.93
AL98 0.32 2.15 74.19
AL99 1.00 1.38 16.19
AL100 1.46 2.02 16.05
AL101 0.43 0.65 20.72
AL102 0.55 1.02 29.53
AL110 0.82 1.25 20.80
AL111 0.99 1.32 14.11
AL112 1.70 2.19 12.51
AL113 1.01 1.68 24.93
AL114 1.04 1.57 20.07
AL115 8.97 8.81 0.92
AL117 3.30 4.17 11.69
AL118 0.86 1.33 21.24
AL119 1.23 1.76 17.76
AL120 1.55 2.01 12.92
AL121 0.40 0.67 25.42
AL123 0.80 1.47 29.34
AL124 1.28 1.69 13.80
AL125 1.07 1.49 16.25
AL126 0.89 1.11 11.00
AL127 0.83 1.25 20.34
AL129 1.74 2.23 12.34
AL130 0.85 1.08 11.69
AL131 0.43 0.70 23.16
AL132 1.46 1.92 13.39
AL133 0.50 0.73 18.76
AL135 1.00 1.50 20.15
TABLE 10-2
CHARGE BALANCE SUMMARY
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\
Table 10-2 Anion - Cation Allen Page 4 of 5
Sample Locations Anions (meq/L)1 Cations (meq/L)1 % Difference
Allen
AL136 1.70 2.80 24.55
AL137 1.13 1.49 13.70
AL138 1.31 1.87 17.58
AL139 0.47 0.69 18.91
AL140 1.08 1.67 21.55
AL141 0.60 0.99 24.57
AL142 0.77 1.19 21.59
ANIN001 0.58 0.61 2.50
ANSP005 5.51 6.03 4.52
ANSW-015 3.05 3.59 8.21
ANSW-016 0.82 1.21 18.99
ANTD001 8.48 9.12 3.61
ANWW-001 0.55 0.56 0.52
ANWW-002 0.00 0.00 NA
ANWW-003 0.57 0.65 6.89
ANWW-004 0.62 0.64 1.76
Ash Basin 0.00 0.00 NA
Ash Basin-NE 5.88 4.07 18.21
BG-01DA 1.00 1.35 13.99
BG-01S 0.28 0.26 2.45
BG-02BRA-2 1.51 1.83 9.47
BG-02D 1.33 1.67 11.43
BG-02S 1.12 1.40 11.16
BG-03D 1.34 1.56 7.73
BG-03S 1.47 1.70 7.11
BG-04BR 1.42 1.72 9.60
BG-04D 2.13 2.65 10.92
BG-04S 1.76 1.94 4.93
CIF Well 0.79 0.91 7.24
GWA-01BR 2.02 2.12 2.38
GWA-01D 1.90 2.06 4.11
GWA-01S 0.63 0.61 1.25
GWA-02D 1.15 1.28 5.07
GWA-02S 0.38 0.36 3.02
GWA-03D 1.57 1.67 3.26
GWA-03S 1.74 1.52 6.99
GWA-04BR 2.24 2.59 7.40
GWA-04D 2.45 2.38 1.51
GWA-04S 3.42 3.35 1.14
GWA-05BRA 2.50 2.50 0.05
GWA-05D 2.02 2.18 3.68
GWA-05S 0.83 0.68 10.47
GWA-06BR 5.06 5.76 6.46
GWA-06DA 8.71 9.44 4.05
GWA-06S 37.30 18.90 32.66
GWA-07D 3.76 3.72 0.51
GWA-07S 2.34 1.95 9.08
GWA-08D 1.57 1.74 5.38
GWA-08S 2.54 2.78 4.47
GWA-09BR 1.44 1.55 3.50
GWA-09D 0.99 1.13 6.67
GWA-09S 1.18 1.12 2.66
GWA-14D 0.00 0.00 NA
GWA-14DA 1.33 1.69 11.87
GWA-14S 0.19 0.20 4.28
GWA-15D 1.59 1.87 8.27
GWA-15S 0.97 1.14 8.14
GWA-16D 0.69 0.83 9.01
GWA-16S 1.15 1.26 4.30
TABLE 10-2
CHARGE BALANCE SUMMARY
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\
Table 10-2 Anion - Cation Allen Page 5 of 5
Sample Locations Anions (meq/L)1 Cations (meq/L)1 % Difference
Allen
GWA-17D 1.49 1.76 8.29
GWA-17S 0.83 0.92 4.79
GWA-18D 1.18 1.38 7.53
GWA-18S 1.11 1.24 5.74
GWA-19S 0.57 0.59 1.68
GWA-21BR 2.08 2.55 10.21
GWA-21DA 1.22 1.46 8.78
GWA-21S 0.28 0.32 6.27
GWA-22D 2.13 2.43 6.61
GWA-22S 0.23 0.19 8.72
GWA-23S 0.23 0.20 7.40
GWA-24BR 1.30 1.58 9.50
GWA-24D 0.76 0.88 7.72
GWA-26D 1.22 1.40 7.10
GWA-26S 0.71 0.77 4.34
LCS Cell 2 92.70 0.00 100.00
PH ADJ BLDG 0.64 1.50 40.59
PH Well 4.21 4.28 0.81
Pipe-RAB-CMP 3.69 3.55 2.03
S-01 1.04 1.13 4.10
S-02 1.76 1.92 4.41
S-02 HW-WL 0.00 0.00 NA
S-03 4.51 5.04 5.56
S-04 5.31 6.07 6.62
S-05 3.06 3.08 0.29
S-06 3.57 3.25 4.66
S-07 1.96 1.85 2.84
S-08 4.97 5.59 5.85
S-08B 5.05 5.04 0.06
S-09 0.00 0.00 NA
S-10 2.53 2.39 2.78
SW-01 2.24 2.22 0.40
SW-02 2.28 2.26 0.36
SW-03 0.54 0.52 1.63
SW-04 1.62 1.41 6.96
SW-05 14.00 12.00 7.51
SW-06 0.51 0.52 0.95
SW-07 0.62 0.64 1.69
SW-08 0.60 0.64 3.55
SW-D1 0.96 0.95 0.58
SW-U1 0.54 0.57 2.51
Tower-0.3m 3.44 3.82 5.27
1 meq/L = milliequivalents per liter Prepared by: PWA Checked by: ALA
TABLE 10-3
STATE AND FEDERAL STANDARDS FOR COIS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\Table 10-2 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)
Arsenic 10 10 --
Antimony -6 -1
Barium 700 2000 --
Beryllium -4 -4
Boron 700 ---
Cadmium 2 5 --
Chloride 250000 -250000 -
Chromium 10 100 --
Chromium (Hexavalent)10*---
Cobalt ---1
Iron 300 -300 -
Manganese 50 -50 -
Molybdenum ----
Nickel 100 ---
pH 6.5 - 8.5**-6.5 - 8.5**-
Selenium 20 50 --
Strontium ----
Sulfate 250,000 -250,000 -
Thallium -2 -0.2
TDS 500,000 -500,000 -
Vanadium ---0.3
Radium (Total)-5***--
Uranium (Total)-0.03****--
Prepared by: LWD Checked by: EMY
Notes:
* - 2L for Chromium
** - Standard Units
*** - pCi/L - picocuries per Liter
**** - µg/mL - micrograms per milliliter
µg/L - micrograms per Liter
TABLE 11-1
DATA INVENTORY SUMMARY TABLE
ALLEN STEAM STATION
DUKE ENERGY CAROLINA, LLC.
GASTON COUNTY, NORTH CAROLINA
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\Table 11-1 Allen- Data Inventory Summary Table Page 1 of 1
ACTIVE ASH BASIN - SOUTH TRANSECT ACTIVE ASH BASIN - NORTH TRANSECT INACTIVE BASIN TRANSECT ASH STORAGE AREA/COAL PILE TRANSECT ACTIVE ASH BASIN - SOUTH TRANSECT ACTIVE ASH BASIN - NORTH TRANSECT INACTIVE BASIN TRANSECT ASH STORAGE AREA/COAL PILE TRANSECT
(a)Have background concentrations been formally
established for all COIs in soil and groundwater?
(b)
For each source area, how many wells within each
flow systems are located along the contaminant plume
centerline? Along a transect that is perpendicular to
the plume centerline?
3 ash pore
3 shallow
5 deep
3 bedrock
2 bedrock-lower
4 ash pore
3 shallow
4 deep
1 bedrock-upper
3 bedrock
3 ash pore
4 shallow
7 deep
2 bedrock
2 ash pore
3 shallow
5 deep
2 bedrock
8 shallow
6 deep
3 ash pore
3 shallow
4 deep
1 bedrock-upper
1 bedrock
3 ash pore
4 shallow
6 deep
1 bedrock
7 shallow
7 deep
3 bedrocks
2 bedrock-lower 3 shallow 4 shallow 3 shallow 0 bedrock 3 shallow 4 shallow 7 shallow
No wells are screened across the full thickness of
an aquifer or it is indeterminate based on available
information
No wells are screened across the full thickness of an
aquifer or it is indeterminate based on available
information
No wells are screened across the full
thickness of an aquifer or it is
indeterminate based on available
information
No wells are screened across the full thickness of an
aquifer or it is indeterminate based on available
information
No wells are screened across the full thickness of an
aquifer or it is indeterminate based on available
information
No wells are screened across the full thickness of
an aquifer or it is indeterminate based on available
information
No wells are screened across the full
thickness of an aquifer or it is
indeterminate based on available
information
No wells are screened across the full thickness of an
aquifer or it is indeterminate based on available
information
GWA-9BR (3; 3/29/2017 - 9/14/2017)AB-13D (13; 7/1/2013 - 9/15/2017)GWA-15D (8; 9/24/2015 - 9/12/2017)AB-38BR (4; 12/13/2016 - 9/14/2017)AB-6A (17; 11/16/2005 - 9/13/2017)AB-8 (9; 5/8/2006 - 5/4/2010)AB-9D (24; 7/7/2011 - 9/13/2017)AB-33D (3; 6/18/2015 - 6/22/2017)
GWA-9D (7; 9/24/2015 - 9/14/2017)AB-13S (23; 7/7/2011 - 9/15/2017)GWA-15S (9; 6/24/2015 - 9/12/2017)AB-38D (9; 7/9/2015 - 9/14/2017)AB-6R (10; 5/14/2007 - 9/13/2017)AB-23BRU (0; NA)AB-9S (20; 7/7/2011 - 9/13/2017)AB-33S (8; 6/16/2015 - 9/12/2017)
GWA-9S (8; 6/25/2015 - 9/14/2017)AB-24BR (4; 12/13/2016 - 9/12/2017)AB-37D (9; 7/13/2015 - 9/13/2017)AB-38S* (8; 6/16/2015 - 9/14/2017)CCR-17D (9; 5/27/2016 - 8/15/2017)AB-23D (0; NA)AB-29D (8; 9/23/2015 - 9/12/2017)5 CCR-1D (1; 1/4/2017)
AB-20D (1; 9/15/2017)AB-24D (0; NA)AB-37S* (9; 7/13/2015 - 9/13/2017)AB-39D (8; 7/9/2015 - 9/11/2017)CCR-17S (9; 5/23/2016 - 8/15/2017)AB-23S* (1; 6/15/2015)AB-29S* (9; 6/16/2015 - 9/12/2017)CCR-1DA (7; 3/1/2017 - 9/11/2017)
AB-20S* (9; 6/30/2015 - 9/15/2017)AB-24S* (7; 6/23/2015 - 9/12/2017)AB-36D (4; 3/18/2016 - 9//13/2017)AB-39S* (9; 6/16/2015 - 9/11/2017)CCR-18D (9; 5/25/2016 - 8/14/2017)AB-27BR (4; 12/16/2016 - 9/15/2017)AB-29SL* (0; NA)CCR-1S (2; 6/3/2016 - 7/21/2016)
AB-21BR (0; NA)AB-24SL* (2; 3/27/2017 - 9/12/2017)AB-36S (6; 3/18/2016 - 9/13/2017)5 CCR-4D (2; 5/27/2016 - 11/7/2016)CCR-18S (9; 5/25/2016 - 8/14/2017)AB-27D (4; 6/17/2015 - 9/13/2017)AB-30D (6; 3/16/2016 - 9/12/2017)CCR-2D (8; 5/24/2016 - 8/15/2017)
AB-21BRL (2; 12/15/2016 - 9/14/2017)AB-25BR (0; NA)AB-35BR (4; 12/13/2016 - 9/13/2017)CCR-4DA (6; 3/3/2017 - 9/11/2017)CCR-20D (7; 11/8/2016 - 8/14/2017)AB-27S* (7; 7/11/2015 - 9/13/2017)AB-30S* (8; 6/16/2015 - 9/12/2017)CCR-2S (9; 5/27/2016 - 8/15/2017)
AB-21D (0; NA)AB-25BRU (0; NA)AB-35D (0; NA)CCR-4SA (7; 3/2/2017 - 9/11/2017)CCR-20S (9; 5/27/2016 - 8/14/2017)AB-28D (0; NA)AB-31D (0; NA)5 CCR-3D (0; NA)
AB-21S* (10; 6/13/2015 - 9/14/2017)AB-25S* (8; 7/8/2015 - 9/13/2017)AB-35S* (8; 7/9/2015 - 9/11/2017)5 GWA-6BR (3; 6/24/2015 - 9/15/2017)CCR-21D (8; 7/18/2016 - 8/14/2017)AB-28S* (8; 6/17/2015 - 9/12/2017)AB-31S (7; 6/18/2015 - 9/18/2017)CCR-3DA (7; 3/2/2017 - 9/11/2017)
AB-21SL* (5; 3/18/2016 - 9/14/2017)AB-25SL* (5; 6/15/2015 - 9/13/2017)AB-34D (6; 3/16/2016 - 9/11/2017)GWA-6BRA (1; 11/10/2017)CCR-21S (9; 5/24/2016 - 8/14/2017)CCR-14D (2; 6/19/2017 - 8/15/2017)5 CCR-11D (0; NA)CCR-3S (9; 5/27/2016 - 8/15/2017)
AB-22BR (3; 3/28/2017 - 9/14/2017)AB-26D (1; 9/14/2017)AB-34S* (8; 6/17/2015 - 9/11/2017)5 GWA-6D (0; NA)CCR-22DA (0; NA)CCR-14S (9; 6/5/2016 - 8/15/2017)CCR-11DA (7; 3/1/2017 - 9/11/2017)CCR-5D (9; 5/23/2016 - 8/15/2017)
AB-22BRL (1; 11/10/2017)AB-26S (4; 7/11/2015 - 9/14/2017)AB-32D (8; 6/19/2015 - 9/12/2017)GWA-6DA (5; 9/23/2016 - 9/15/2017)CCR-22S (9; 5/26/2016 - 8/14/2017)CCR-16D (8; 5/26/2016 - 8/15/2017)CCR-11S (8; 5/26/2016 - 8/14/2017)CCR-5S (9; 5/27/2016 - 8/15/2017)
AB-22D (9; 7/10/2015 - 9/14/2017)5 GWA-3BR (0; NA)AB-32S (7; 8/4/2015 - 9/12/2017)GWA-6S (9; 7/11/2015 - 9/11/2017)CCR-23D (9; 6/5/2016 - 8/14/2017)CCR-16S (6; 11/8/2016 - 8/15/2017)GWA-4BR (1; 12/14/2016)CCR-6D (8; 7/20/2016 - 8/14/2017)
AB-22S (6; 9/23/2015 - 9/14/2017)GWA-3BRA (0; NA)5 GWA-5BR (0; NA)GWA-7D (7; 6/19/2015 - 9/14/2017)CCR-23S (9; 6/5/2016 - 8/14/2017)GWA-4D (8; 6/18/2015 - 9/11/2017)CCR-6S (9; 5/27/2016 - 8/14/2017)
AB-10D (16; 11/1/2011 - 9/13/2017)GWA-3D (3; 3/31/2017 - 9/13/2017)GWA-5BRA (2; 6/21/2017 - 9/12/2017)GWA-7S (8; 6/19/2015 - 9/14/2017)GWA-4S (9; 6/18/2015 - 9/13/2017)GWA-8D (8; 7/11/2015 - 9/14/2017)
AB-10S (22; 7/7/2011 - 9/13/2017)GWA-3S (9; 7/10/2015 - 9/13/2017)GWA-5D (6; 3/18/2016 - 9/12/2017)GWA-8S (8; 7/14/2015 - 9/14/2017)
GWA-5S (8; 6/19/2015 - 9/11/2017)
Total Record Date Range:
7/7/2011 - 11/10/2017
Total Record Date Range:
7/7/2011 - 9/15/2017
Total Record Date Range:
6/17/2015 - 9/13/2017
Total Record Date Range:
6/16/2015 - 11/10/2017
Total Record Date Range:
11/16/2005 - 9/13/2017
Total Record Date Range:
5/8/2006 - 9/15/2017
Total Record Date Range:
7/7/2011 - 9/18/2017
Total Record Date Range:
6/16/2015 - 9/14/2017
(e)
Does turbidity, well construction (for example, grout
contamination, etc.), or well "break in" issues preclude
the use of data in (b), (c) , and (or) (d)? 3
65 sample events omitted 91 sample events omitted 44 sample events omitted 31 sample events omitted 32 sample events omitted 43 sample events omitted 49 sample events omitted 22 sample events omitted
18 samples total
1 bedrock 19 samples total
11 shallow
32 samples total
25 shallow
16 samples total
11 shallow
0 samples
0 bedrock
13 samples total
9 shallow
16 samples total
11 shallow
8 samples total
6 shallow
(g)
Given that iron hydroxide (HFO) content is a good
indicator of retention capacity for most metal
contaminants, how many locations in (f) was HFO
measured?
3 samples total
0 bedrock
1 sample total
0 shallow
3 samples total
2 shallow
1 sample total
1 shallow
0 samples total
0 bedrock
2 samples total
2 shallow
2 samples total
2 shallow
1 sample total
1 shallow
Notes:Prepared by: EMB Checked by: LWD
Response to these questions reflect the data collected as of September 2017.
1 - Responses to (c) reflect the most contaminated flow unit within a specific flow transect. The boron plume is the primary contaminant under consideration in this evaluation, however where appropriate, discrete plumes of other CCR constituents are considered.
2 - Valid samples are those without pH or turbidity issues (defined below).
3 - pH issues are defined as pH>8.5 for all flow zones. Turbidity issues are defined as turbidity >10 NTUs.
4 - “Spatial locations sampled for solid phase chemistry” this question is interpreted as the number of solid phase samples analyzed for total metals.
5 - Indicate that these wells were replaced with an adjacent well typically ending in an "A" (e.g., GWA-3BR was replaced with GWA-3BRA).
* - An asterisk at the end of a well ID indicates that the well is an ash pore well.
References:
NCDEQ. (2017, October). Monitored Natural Attenuation For Inorganic Contaminants in Groundwater: Guidance for Developing Corrective Action Plans Pursuant to NCAC 15A.0106(l). NC: Division of Water Resources.
(f)
PARALLEL TO TRANSECT/CENTERLINE OF FLOW PERPENDICULAR TO TRANSECT/CENTERLINE OF FLOW
PBTVs have been proposed and partially approved as discussed in Section 7 and 10. Updated proposed PBTVs are also presented in Appendix H.
What is the length of record and how many valid
samples events are available for wells listed in (b) and
(c)? 2
How many wells in (b) above are screened across the
most contaminated vertical interval of a given flow
unit or are screened across the full thickness of the
flow unit? 1
DATE INVENTORY QUESTIONS TAKEN FROM MMA
GUIDANCE DOCUMENT- SECTION 4.3
(c)
(d)
For each source area and within each flow unit, how
many spatial locations were sampled for solid phase
chemistry and were these locations associated with
"end member"
(maximum and minimum) groundwater concentrations
for each contaminant? How many of these spatial
locations are associated with (b) or (c) above? 4
Source area: # Samples; Flow Layer = # Samples in Layer
Active Ash Basin: 68 solid phase samples; Ash = 29, Shallow = 37, Deep = 0, Bedrock = 2
Inactive Ash Basin: 92 solid phase samples; Ash = 50, Shallow = 40, Deep = 0, Bedrock = 2
No, not all spatial locations include maximum and minimum groundwater concentrations.
TABLE 11-2
WELLS TO MONITOR USING
PRESSURE TRANSDUCERS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\
Table 11-2 Coal Pile Wells to Monitor for WLs Page 1 of 1
Shallow Deep Bedrock
GWA-7S GWA-7D NA
CCR-4SA CCR-4DA NA
GWA-6S GWA-6DA GWA-6BRA
CCR-5S CCR-5D NA
CCR-6S CCR-6D NA
AB-33S AB-33D NA
CCR-7S CCR-7D NA
CCR-8S CCR-8D NA
CCR-9S CCR-9D NA
GWA-5S GWA-5D GWA-5BRA
AB-32S AB-32D NA
Prepared by: CJS Checked by: LWD
Notes:
NA - Not Available
Designated Flow Zone
(Listed Northwest to Southeast)
Installation of pressure transducers is in association with coal
pile holding basin dewatering (separate project)
TABLE 13-1
SUMMARY OF Kd VALUES FROM BATCH AND COLUMN STUDIES
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\Tables\
Table 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 1205 0.1 183 332 3483 2954 56 3638
Trial - B 1130 IDNA 179 332 IDNA 3319 60 3638
Trial - A 14 0.40 122 636 0.0 7.0 285 11
Trial - B 13 IDNA 120 IDNA 1.0 IDNA 283 11
Trial - A 2965 0.1 157 187 288 1847 325 881
Trial - B 3218 IDNA 143 187 419 IDNA 328 1255
Trial - A 30 IDNA 3250 2909 0.6 6.0 1974 33
Trial - B 30 IDNA 1490 IDNA 0.3 6.5 952 29
Trial - A 3044 3.0 40 332 957 2937 92 3638
Trial - B 2692 IDNA 39 332 1220 2756 84 3638
Trial - A 6133 IDNA 437 332 435 1245 128 3638
Trial - B 5944 IDNA 419 332 375 1249 115 3638
Trial - A 1784 2.0 12 5378 8386 287 60 3638
Trial - B 1831 IDNA 13 IDNA 8386 293 61 3638
Trial - A 519 IDNA 64 872 511 1795 63 4319
Trial - B 499 IDNA 64 872 753 1739 66 4319
Trial - A 9.0 IDNA 128 4298 1.0 7.0 333 6.0
Trial - B 9.0 IDNA 248 IDNA 0.4 IDNA IDNA 6.0
Trial - A 12 IDNA 110 193 0.4 11 111 133
Trial - B 10 IDNA 99 205 0.4 IDNA 111 IDNA
Trial - A 2209 IDNA 25 38 193 719 78 4319
Trial - B 2161 IDNA 22 37 361 676 75 4319
Trial - A 206 IDNA 304 15 11 51 339 109
Trial - B 220 IDNA 323 15 13 57 337 120
317.9 0.5 124.1 291.1 2.3 258.5 155.5 492.9
824.5 0.4 125.0 332.0 288.0 697.5 111.0 3638.0
18.0 0.1 46.0 187.0 0.6 21.0 66.0 33.0
1 Trial Only 470 IDNA 350 IDNA 275 340 200 440
1 Trial Only 175 IDNA 650 IDNA IDNA 75 675 170
1 Trial Only 445 IDNA 280 IDNA 150 200 335 370
1 Trial Only 375 IDNA 600 IDNA 150 185 565 290
1 Trial Only 625 IDNA 210 IDNA 60 625 625 625
1 Trial Only 575 IDNA 520 IDNA 350 600 440 580
1 Trial Only 500 IDNA 125 IDNA 360 480 425 490
1 Trial Only 750 IDNA 350 IDNA 375 400 475 700
1 Trial Only 100 IDNA 350 IDNA 70 85 345 110
1 Trial Only 125 70 360 IDNA 75 100 370 150
Trial A 520 IDNA 145 IDNA 260 325 425 500
Trial B 520 IDNA 150 IDNA 325 325 450 575
Trial C 675 IDNA 175 IDNA 325 350 500 575
1 Trial Only 250 IDNA 600 IDNA 100 75 600 250
374.2 70.0 302.0 IDNA 182.7 235.4 440.6 362.7
485.0 70.0 350.0 IDNA 260.0 325.0 445.0 465.0
231.3 -168.8 IDNA 87.5 96.3 363.8 230.0
Notes: Prepared by: LWD Checked by: ARL
IDNA = isotherm data not available
Units reported in milliliters per gram (mL/g)
Zero values were replaced with 1x10-30 to allow for geometric mean calculations.
Column Kd values are from the Soil Sorption Evaluation Report (Langley, W.G. & Oza, S., 30 Oct. 2015).
GWA-9S (19-21)
GWA-3BR (146.5-148)
AB-35R (160-161)
GWA-7S (28-30)
Batch Study
Sample Site and Depth
(feet)
AB-33S (30-35)
AB-29D (60-62)
AB-28D (70-72)
AB-20D (131-132)
AB-20S (23-25)
AB-31D (45-50)
AB-34S (33-35)
AB-35S (72)
Geometric Mean
Median
AB-20S (23-25)
GWA-3BR (146.5-148)
GWA-7S (28-30)
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).
Lower Quartile (exclusive)
AB-35R (160-161)
Geometric Mean
Median
Lower Quartile (exclusive)
Column Study
AB-28D (70-72)
AB-29D (60-62)
AB-31D (45-50)
AB-20D (131-132)
AB-33S (30-35)
AB-34S (33-35)
AB-35S (72)
GWA-9S (19-21)
TABLE 15-1
GROUNDWATER INTERIM MONITORING PROGRAM ANALYTICAL METHODS
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\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:
ºC - Degrees Celsius
mg/L - Milligrams per liter
mV - Millivolts
NTU - Nephelometric turbidity unit
pCi/L - picocuries per liter
ug/L - Micrograms per liter
ug/mL - micrograms per milliliter
µS/cm - microSiemens
S.U. - Standard Unit
FIELD PARAMETERS
INORGANICS
RADIONUCLIDES
ANIONS/CATIONS/OTHER
NA indicates not applicable.
TABLE 15-2
INTERIM MONITORING PROGRAM LIST
ALLEN STEAM STATION
DUKE ENERGY CAROLINAS, LLC, BELMONT, NC
P:\Duke Energy Carolinas\17.ALLEN\05.EHS CAMA Compliance Support\Assessment\CSAs\2018-01 CSA Update\Final\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-10D AB-4S X
AB-10S AB-5
AB-11D X AB-6A X
AB-12D AB-6R X
AB-12S AB-9D X
AB-13D X AB-9S X
AB-13S X BG-1DA2 X
AB-14BR BG-1S X
AB-14D BG-2BRA2 X
AB-1R BG-2D X
AB-2 BG-2S X
AB-20D BG-3D
AB-20S BG-3S
AB-21BRL X BG-4BR
AB-21D1 X BG-4D
AB-21S X BG-4S
AB-21SL X GWA-14DA2
AB-22BR GWA-14S
AB-22D GWA-15D
AB-22S GWA-15S
AB-23BRU1 GWA-16D
AB-23S GWA-16S
AB-24BR GWA-17D X
AB-24D1 GWA-17S X
AB-24S GWA-18D
AB-24SL GWA-18S
AB-25BR1 X GWA-19D1
AB-25BRU1 X GWA-19S
AB-25S X GWA-1BR X
AB-25SL X GWA-1D X
AB-26S GWA-1S X
AB-25SL GWA-21BR X
AB-26S GWA-21DA2 X
AB-27BR GWA-21S X
AB-27D GWA-22D
AB-27S GWA-22S
AB-28D GWA-23D1
AB-28S GWA-23S
AB-29D GWA-24BR
AB-29S GWA-24D
AB-29SL GWA-24SA2
AB-2D GWA-26D
AB-30D GWA-26S
AB-20S GWA-2D X
AB-31S GWA-2S X
AB-32D GWA-3BRA2 X
AB-32S GWA-3D X
AB-33D X GWA-3S X
AB-33S X GWA-4BRA2 X
AB-34D GWA-4D X
AB-34S GWA-4S X
AB-35BR X GWA-5BRA2 X
AB-35D1 X GWA-5D X
AB-35S X GWA-5S
AB-36S GWA-6BR3 X
AB-37D GWA-6DA X
AB-37S GWA-6S X
AB-38BR GWA-7D X
AB-38D GWA-7S X
AB-38S GWA-8D
AB-39D GWA-8S
AB-39S GWA-9D X
AB-4BR X GWA-9S X
AB-4D X GWA-9BR X
Prepared by: JLK Checked by: LWD
Notes:
3 - Well scheduled to be replaced
1 - Sample to be analyzed for total boron and sulfate only
2 - Replacement well for a previously abandoned well