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Home My WebLink AboutNC0038377_Table 12-6 Transition Zone GW Results_20150902TABLE 12-6 RISK SCREENING TABLE: TRANSITION ZONE GROUNDWATER DATA MAYO STEAM ELECTRIC PLANT DUKE ENERGY PROGRESS, LLC, ROXBORO, NC Water Spec Ferrous Aluminum Antimony Arsenic Barium Beryllium Bi Boron Cadmium Calcium Carbonate Chromium Cobalt Copper Analytical Parameter Redox Assignment pH Temp DO ORP Eh Turbidity Alkalinity carbonate Chloride Cr(III)/Cr(VI) Level Cond Iron Alkalinity Alkalinity DIS TOT DIS TOT DIS TOT TOT DIS TOT DIS TOT TOT DIS TOT DIS TOT DIS TOT Reporting Units None S.U. ft Deg C hos/c mg/I mV mV NTUs mg/I mg/I ug/I ug/I ug/I ug/I ug/I ug/I uug/Iug/Img/I �ISTOT'DIS ug/I ug/I ug/Iug/I 15A NCAC 02L Standard NE 6.5-8.5 NE NE NE NE NE NE NE NE NE NE NE NE 1* NE 10 NE 4* NE NE 700 NE 2 NE NE 250 NE SO NE 1* NE 1 Sample ID Sample Field Parameters Analytical Results Collection Date TRANSITION ZONE ABMW-04D"l 06/22/2015 Mixed (oxic-anoxic) 6.6 6.04 24 1174 0.7 231 436 2.03 4.5 530 84 199 3.45 3.68 140 140 774 755 <1 <1 530 5130 5090 <1 <1 143 <10 11 <1 <1 6.41 6.71 <0.001 <0.001 CW-01 04/13/2015 NC 5.7 16.99 19 178 3.8 310 515 2.63 NM 37.6 NA 791 NA <1 NA <1 NA 6 NA <1 37.6 NA <50 NA 1.23 10.6 <5 19 NA <5 NA <1 NA <0.005 CW-01 07/08/2015 NC 5.5 17.65 20 182 3.3 187 392 3 NM 33.1 NA 35 NA <1 NA <1 NA <5 NA <1 33.1 NA <50 NA <1 10.9 <5 23 NA <5 NA <1 NA <0.005 CW-02 04/14/2015 NC 5 12.36 13 215 1.9 323 528 1.09 NM <5 NA 34 NA <1 NA <1 NA 97 NA <1 <5 NA 524 NA <1 12 <5 33 NA <5 NA <1 NA <0.005 CW-02131 07/07/2015 NC 5.1 13.33 16 285.6 0.8 214.4 419.4 0.46 NM <5 NA 16 NA <1 NA <1 NA 129 NA <1 <5 NA 804 NA <1 17.6 <5 54 NA <5 NA <1 NA <0.005 CW-03 04/14/2015 NC 6.4 15.6 16 654 2.5 352 557 2.31 NM 129 NA 63 NA <1 NA <1 NA 19 NA <1 129 NA <50 NA <1 64.2 <5 100 NA <5 NA <1 NA <0.005 CW-03 07/06/2015 NC 6.5 15.93 21 645 1 45.6 250.6 2.78 NM 136 NA 89 NA <1 NA <1 NA 19 NA <1 136 NA <50 NA <1 66.6 <5 100 NA <5 NA <1 NA <0.005 MW-07D 06/19/2015 Mixed (oxic-anoxic) 6.4 9.3 24 668 2.37 -7.7 197.3 12.1 0 180 <5 147 <1 <1 <1 <1 23 24 <1 <1 180 <50 <50 <1 <1 59.5 <10 78 <1 <1 <1 <1 <0.001 <0.001 MW-16D131 06/23/2015 Mixed (oxic-anoxic) 7.1 3.51 18.6 221 2.49 55.4 260.4 9.38 <0.5 76 <5 102 <1 <1 <1 <1 12 13 <1 <1 75 <50 <50 <1 <1 25.6 <10 8.8 <1 <1 <1 <1 <0.001 <0.001 MW-16D DUPl31 06/23/2015 Mixed (oxic-anoxic) 7.1 3.51 18.6 221 2.49 55.4 260.4 9.38 <0.5 76 <5 86 <1 <1 <1 <1 13 13 <1 <1 76 <50 <50 <1 <1 25.4 <10 8.9 <1 <1 <1 <1 <0.001 <0.001 DETECTIONS/SAMPLES --- --- --- --- --- --- --- --- --- --- 8/10 1/4 10/10 1/4 1/10 1/4 1/10 4/4 9/10 0/4 0/10 8/10 1/4 3/10 0/4 1/10 10/10 0/10 10/10 0/4 0/10 1/4 1/10 0/4 0/10 AVERAGE TRANSITION ZONE GROUNDWATER CONCENTRATION --- --- --- --- --- --- --- --- --- --- 149.7 84 156 3.45 3.68 140 140 206 119 --- --- 150 5,130 2,139 --- 1.23 43.5 --- 43.6 --- --- 6.41 6.71 --- --- (DETECTIONS ONLY) MAXIMUM TRANSITION ZONE GROUNDWATER CONCENTRATION ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ 530.0 84 791 3.45 3.68 140 140 774 755 --- --- 530 5,130 5,090 --- 1.23 143.0 --- 100.0 --- - 6.41 6.71 NUMBER OF TRANSITION ZONE WATER SAMPLES EXCEEDING --- --- --- --- --- --- --- --- 0 0 0 0 1 0 1 0 1 0 0 0 0 2 0 0 0 0 0 0 0 0 1 0 0 Detections/Samples --- --- --- --- --- --- --- --- --- --- --- 3/5 10/10 2/5 2/10 0/5 0/10 5/5 10/10 0/5 0/10 10/10 0/5 0/10 0/5 0/10 10/10 0/10 10/10 1/5 3/10 3/5 3/10 1/5 1/10 Average Background Concentrations (Detections Only) ___ ___ ___ ___ ___ ___ ___ ___ ___ 13 314 1.64 1.48 --- --- 29 50 --- --- 127 --- --- --- --- 31.8 --- 16 1.59 1.5 1.24 1.29 0.00772 0.0045 Maximum Concentration --- --- --- --- --- --- --- --- --- --- --- 16 641 1.66 1.63 --- --- 46 97 --- --- 259 --- --- --- --- 58.1 --- 30 1.59 1.73 1.41 1.41 0.00772 0.0045 Number of Backgroundwater Samples > SSA NCAC 2L Standard --- --- --- --- --- --- --- --- 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 Coal Ash COP( 15A NCAC 2L Standard Transition Zone Conc. > 15A NCAC 2L Standard Transition Zone COP( Notes 0 - Bold highlighted concentration indicates exceedance of the 15A NCAC 02L, Appendix 2, April 1, 2013. Yea I Indicates support/rationale for soil COPC attributable to coal ash _ - Indicates constituent is not a soil COPC attributable to coal ash. ORP = Oxidation Reduction Potential mV = millivolts DIS = Dissolved NE = Not established TOT = Total NTUs = nephelometric turbidity unit Temp = Temperature S.U. = Standard Unit DO = Dissolved Oxygen ug/I = microgram per liter Deg C = Degree Celsius umhos/cm = micro mhos per centimeter mg/I = milligrams per liter Spec Cord = Specific Conductance mg-N/L = miligram nitrogen per liter ft = feet --- = Not applicable NC = Not calculated < = concentration not detected at or above the reporting limit. - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L, Appendix 1, April, 1, 2013. Note 1: If no 15A NCAC 2L Standard No Yes No Yes No Yes No No No No Yes No No No No No No No No Yes No Yes Yes Yes gYesNo Yes Yes YesNo MNo No Yes No Yes No Yes No No No No Yes No No No No No No No No Yes No Note 2: Hexavalent Chromium concentration is less than EPA screening value for tapwater (0.035 mg/Q. See Table 10-3 (USEPA Regional Screening Levels [RSLs] rev., June 26. 2015). Note 3: Hexavalent Chromium concentration is greater than EPA screening value for tapwater (0.035 ug/L). See Table 10-3 (USEPA Regional Screening Levels [RSLs] rev., June 26, 2015). Prepared by: KDF Checked by: VTV P:\Duke Energy Progress. 1026\105. Mayo Ash Basin GW Assessment Plan\1.11 CSA Reporting\Tables\Draft Tables\Table 12-6 Transition Zone GW Results.xlsx Page 1 of 2 TABLE 12-6 RISK SCREENING TABLE: TRANSITION ZONE GROUNDWATER DATA MAYO STEAM ELECTRIC PLANT DUKE ENERGY PROGRESS, LLC, ROXBORO, NC Analytical Parameter Iron Lead Magnesium Manganese Mercury Methane Molybdenum Nickel Nitrate (as N) Potassium Selenium Sodium Strontium Sulfate Sulfide Thallium Total Dissolved Solids Total Organic Carbon Total Suspended Solids Vanadium Zinc TOT TOT DIS TOT DIS TOT DIS TOT DIS TOT TOT DIS TOT TOT DIS TOT DIS TOT DIS TOT DIS TOT Reporting Units INE fl.' �DIS, g/ ug/I mg/1 ug/I ug/I ug/1 ug/I ug/1 ug/1 ug/I ug/I ug/I mg-N/L mg/I ug/1 ug/I mg/I mg/I mg/I mg/I mg/I ug/1 ug/I mg/I mg/I mg/I ug/I ug/I mg/1 mg/I 15A NCAC 02L Standard NE 15 NE NE 50 NE 1 NE NE NE NE 100 10 NE NE 20 NE NE NE 250 NE NE 0.2* 500 NE NE NE 0.3* NE 1 Sample ID Sample Collection Date Analytical Results TRANSITION ZONE ABMW-04D"l 06/22/2015 30400 28300 <1 <1 45.1 4120 3640 <0.05 <0.05 21000 212 269 1.68 1.63 <0.01 34.9 <1 <1 22.9 2.99 3.07 19 <0.5 <0.2 <0.2 680 5.5 63 11.9 23.3 0.014 0.007 CW-01 04/13/2015 NA 608 NA <1 5.03 NA 27 NA <0.05 NA NA <1 NA <5 NA 1.13 NA <1 17.3 NA NA 10 NA NA <0.2 160 NA 11 NA NA NA 0.013 CW-01 07/08/2015 NA 31 NA <1 4.97 NA 6 NA <0.05 NA NA <1 NA <5 1.4 1.05 NA <1 17 NA NA 9.5 NA NA <0.2 150 NA <5 NA 0.543 NA 0.01 CW-02 04/14/2015 NA 17 NA <1 6.58 NA 170 NA <0.05 NA NA <1 NA <5 NA 1.61 NA <1 12.9 NA NA 39 NA NA <0.2 140 NA <5 NA NA NA <0.005 CW-02i31 07/07/2015 NA <10 NA <1 8.68 NA 393 NA <0.05 NA NA <1 NA <5 <0.023 1.97 NA <1 17.3 NA NA 49 NA NA <0.2 210 NA <5 NA <0.3 NA 0.008 CW-03 04/14/2015 NA 53 NA <1 8.28 NA 9 NA <0.05 NA NA <1 NA <5 NA 4.68 NA <1 46.1 NA NA 15 NA NA <0.2 440 NA <5 NA NA NA <0.005 CW-03 07/06/2015 NA 71 NA <1 8.35 NA <5 NA <0.05 NA NA <1 NA <5 0.32 4.76 NA <1 44.5 NA NA 15 NA NA <0.2 440 NA <5 NA 1.41 NA 0.11 MW-07D 06/19/2015 <10 69 <1 <1 26.4 176 188 <0.05 <0.05 <10 1.46 1.35 1.01 <1 <0.01 2.66 <1 <1 30.7 0.43 0.442 9 <0.1 <0.2 <0.2 390 1.2 <5 0.68 0.798 <0.005 <0.005 MW-16D(" 06/23/2015 <10 87 <1 <1 5.16 260 269 <0.05 <0.05 <10 10.9 10.1 <1 <1 2.9 2.32 <1 <1 9.77 0.163 0.163 7.7 <0.1 <0.2 <0.2 160 0.208 <5 0.53 0.617 0.009 <0.005 MW-16D DUPl31 06/23/2015 <10 85 <1 <1 5.1 250 261 <0.05 <0.05 <10 10.6 11.3 <1 <1 2.9 2.31 <1 <1 9.72 0.179 0.163 7.8 <0.1 <0.2 <0.2 150 0.214 <5 0.537 0.729 0.093 <0.005 DETECTIONS/SAMPLES 1/4 9/10 0/4 0/10 10/10 4/4 9/10 0/4 0/10 1/4 4/4 4/10 2/4 1/10 4/7 10/10 0/4 0/10 10/10 4/4 4/4 10/10 0/4 0/4 0/10 10/10 4/4 2/10 4/4 6/7 3/4 5/10 AVERAGE TRANSITION ZONE GROUNDWATER CONCENTRATION (DETECTIONS ONLY) 30,400 3,258 --- --- 12.37 1,202 551 --- --- 21,000 58.7 72.9 1 2 1.9 5.74 --- --- 22.8 0.94 0.960 18 --- --- --- 292 1.78 37 3.41 4.57 0.039 0.03 MAXIMUM TRANSITION ZONE GROUNDWATER CONCENTRATION 30,400 ' 28,300 --- --- 45.10 4,120 3,640 --- --- 21,000 212.0 269.0 2 2 2.9 34.90 --- --- 46.1 2.99 3.070 49 --- --- --- 680 5.50 63 11.90 23.30 0.093 0.11 NUMBER OF TRANSITION ZONE WATER SAMPLES EXCEEDING 0F�o 0 0 0 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 6 0 0 Detections/Samples 3/5 10/10 0/5 0/10 10/10 5/5 10/10 0/5 2/10 0/5 4/5 4/10 3/5 3/5 4/7 10/10 0/5 0/10 10/10 5/5 5/5 10/10 0/5 0/5 1/10 10/10 5/5 7/10 4/5 7/10 5/10 8/10 Average Background Concentrations (Detections Only) 289 494 --- --- 7.65 499 295 --- 0.06 --- 5.95 5.88 1.69 2.35 0.44 3.4 --- --- 27.3 0.141 0.14 12.7 --- --- 0.323 231 1.1 9 1.16 2.51 0.018 0.025 Maximum Concentration 485 907 --- --- 15.5 954 894 --- 0.06 --- 14.6 14 1.91 3.09 1 8.66 --- --- 50.3 0.225 0.21 83 --- --- 0.323 380 2 17 2.39 5.88 0.056 0.067 Number of Backgroundwater Samples > 15A NCAC 2L Standard 0 8 0 0 0 0 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 7 0 0 Coal Ash COPC 15A NCAC 2L Standarc Transition Zone Conc. > NCAC 21. Transition Zone COPC No Yes No No No No Yes No No No No No No No No No No No No No No No No No Yes Yes No No No Yes No No Yes Yes Yes Yes Yes Yes Yes No Yes Yes No Yes No No No No Yes No No No No No No No No No No No No No No No No No No Yes No No No Yes No I No Notes 0 - Bold highlighted concentration indicates exceedance of the 15A NCAC 02L, Appendix 2, April 1, 2013. Yea I Indicates support/rationale for soil COPC attributable to coal ash. _ - Indicates constituent is not a soil COPC attributable to coal ash. ORP = Oxidation Reduction Potential mV = millivolts DIS = Dissolved NE = Not established TOT = Total NTUs = nephelometric turbidity unit Temp = Temperature S.U. = Standard Unit DO = Dissolved Oxygen ug/I = microgram per liter Deg C = Degree Celsius umhos/cm = micro mhos per centimeter mg/I = milligrams per liter Spec Cond = Specific Conductance mg-N/L = miligram nitrogen per liter ft = feet --- = Not applicable NC = Not calculated < = concentration not detected at or above the reporting limit. - Interim Maximum Allowable Concentrations (IMACs) of the 15A NCAC 02L, Appendix 1, April, 1, 2013. Note 1: If no 15A NCAC 2L Standard Note 2: Hexavalent Chromium concentration is less than EPA screening value for tapwater (0.035 mg/Q. See Table 10-3 (USEPA Regional Screening Levels [RSLs] rev., June 26. 2015). Note 3: Hexavalent Chromium concentration is greater than EPA screening value for tapwater (0.035 ug/L). See Table 10-3 (USEPA Regional Screening Levels [RSLs] rev., June 26, 2015). Prepared by: KDF Checked by: VTV P:\Duke Energy Progress. 1026\105. Mayo Ash Basin GW Assessment Plan\1.11 CSA Reporting\Tables\Draft Tables\Table 12-6 Transition Zone GW Results.xlsx Page 2 of 2