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Home My WebLink AboutSW_F_8103-CDLF-2002_06-27-2014_RM_GW.pdfRuthCent_0414 TABLE 1 SUMMARY OF MONITORING WELL DATA CENTRAL SANITARY LANDFILL (# 81-03) RUTHERFORD COUNTY, NORTH CAROLINA Elevation (ft)Depth4 Static Water Levels3 Well of No.Land Top of Top of Bottom of Well Depth2 Elevation Depth2 Elevation Depth2 Elevation Depth2 Elevation Surface Casing1 Screen Screen (ft)(ft)(ft)(ft)(ft)(ft)(ft)(ft)(ft) 8103-MW-2 995.43 995.51 945.43 935.43 60.0 46.47 949.04 45.23 950.28 35.94 959.57 37.12 958.39 8103-MW-3 859.62 860.28 822.62 812.62 47.0 33.98 826.30 32.38 827.90 31.36 828.92 32.03 828.25 8103-MW-4 849.72 851.03 809.72 799.72 50.0 35.74 815.29 32.64 818.39 31.96 819.07 31.82 819.21 8103-MW-6 833.43 834.90 810.93 795.93 37.5 32.81 802.09 31.20 803.70 29.08 805.82 28.42 806.48 8103-MW-7 890.51 892.70 851.51 836.51 54.0 37.03 855.67 34.20 858.50 33.93 858.77 33.50 859.20 8103-MW-8 857.86 860.31 828.36 813.36 44.5 43.78 816.53 40.28 820.03 38.87 821.44 36.91 823.40 8103-MW-9 864.97 867.25 842.47 827.47 37.5 35.35 831.90 33.63 833.62 31.54 835.71 32.60 834.65 8103-MW-10A 834.73 837.23 743.73 733.73 101.0 7.195 830.045 7.175 830.065 6.425 830.815 5.845 831.395 8103-MW-10B 834.50 836.15 802.50 797.50 37.0 9.93 826.22 8.78 827.37 8.68 827.47 7.83 828.32 8103-MW-10C 834.50 836.19 823.50 818.50 16.0 9.72 826.47 8.58 827.61 8.42 827.77 7.62 828.57 8103-MW-10D 834.73 837.23 778.73 768.73 66.0 11.15 826.08 9.74 827.49 9.55 827.68 8.51 828.72 8103-MW-11A 815.39 817.18 780.39 770.39 45.0 9.08 808.10 8.28 808.90 8.08 809.10 7.80 809.38 8103-MW-11B 816.32 817.72 806.32 796.32 20.0 10.30 807.42 9.46 808.26 9.48 808.24 9.21 808.51 8103-MW-12 884.33 886.68 849.33 834.33 50.0 39.81 846.87 33.55 853.13 37.66 849.02 33.20 853.48 8103-MW-13 960.80 962.90 887.80 872.80 88.0 81.80 881.10 80.02 882.88 74.49 888.41 76.67 886.23 8103-MW-14 867.08 869.48 849.68 834.68 32.4 23.37 846.11 21.27 848.21 19.65 849.83 19.96 849.52 8103-MW-15 887.58 889.54 839.58 849.58 38.0 33.27 856.27 30.32 859.22 29.40 860.14 29.86 859.68 Notes: 1 Elevations for 8103-MW-2 through 8103-MW-11B determined by survey: Burnt Chimney Surveying, Forest City, NC, December 1998, elevations for 8103-MW-12 and 8103-MW-13 provided by David Garrett P.G., P.E., Engineering and Geology, Raleigh, NC, 2002 and 1999, respectively 2 Depth to groundwater measured by Scarlett Geophysical Consulting, P.C. 3 Water levels taken from top of casing 4 Depth of well measured from land surface 5 May not represent static water level. Well has very slow recharge rate (less than 0.03 gallons per day) Sep 25-Oct 3, 2012 Apr 28-May 1, 2014Sep 23-28, 2013April 15-18, 2013 RuthCent_0414 TABLE 2 GROUND AND SURFACE WATER SAMPLING FIELD DATA CENTRAL SANITARY LANDFILL (# 81-03) RUTHERFORD COUNTY, NORTH CAROLINA APRIL 28 - MAY 1, 2014 Well Number 8103-MW-2 8103-MW-3 8103-MW-4 8103-MW-6 8103-MW-7 8103-MW-8 8103-MW-9 8103-MW-10A 8103-MW-10B Temperature 16.49ºC 15.8ºC 16.40ºC 18.12ºC 15.3ºC 16.32ºC 15.68ºC NS 14.6ºC Conductivity 126 µmhos/cm 758 µmhos/cm 806 µmhos/cm 2030 µmhos/cm 831 µmhos/cm 505 µmhos/cm 43.0 µmhos/cm NS 125.2 µmhos/cm pH 7.29 6.18 6.29 6.40 6.36 6.11 4.66 NS 6.16 ORP 170 mV NA -24 mV -59 mV NA 213 mV 313 mV NS NA DO 11.48 mg/l NA 0.22 mg/l 0.23 mg/l NA 6.18 mg/l 6.71 mg/l NS NA Turbidity 2.2 NTU NA 29.8 NTU 0.0 NTU NA 12.7 NTU 0.0 NTU NS NA Well Number 8103-MW-10C 8103-MW-10D 8103-MW-11A 8103-MW-11B 8103-MW-12 8103-MW-13 8103-MW-14 8103-MW-15 8103-SW-2 Temperature 13.8ºC 15.25ºC 15.62ºC 13.5ºC 16.5ºC 16.3ºC 15.4ºC 17.3ºC 15.2ºC Conductivity 82.2 µmhos/cm 314 µmhos/cm 855 µmhos/cm 197.4 mhos/cm 634 µmhos/cm 174.2 µmhos/cm 187.6 µmhos/cm 135.2 µmhos/cm 89.6 µmhos/cm pH 5.85 6.07 6.12 5.74 6.11 5.37 5.57 5.47 6.99 ORP NA 72 mV -33 mV NA NA NA NA NA NA DO NA 0.00 mg/l 0.00 mg/l NA NA NA NA NA NA Turbidity NA 0.0 NTU 66.8 NTU NA NA NA NA NA NA Well Number 8103-SW-3 8103-SW-4 8103-SW-5A Temperature 16.2ºC 16.5ºC 15.2ºC Conductivity 67.6 µmhos/cm 45.5 µmhos/cm 63.4 µmhos/cm pH 7.15 6.59 6.61 ORP NA NA NA DO NA NA NA Turbidity NA NA NA NS - Not sampled NA - Not analyzed Parameter Parameter Parameter RuthCent_0414 TABLE 3 GROUNDWATER SAMPLING RESULTS APPENDIX I INORGANIC CONSTITUENTS BY SW-846 METHOD 6010 C CENTRAL SANITARY LANDFILL (# 81-03)RUTHERFORD COUNTY, NORTH CAROLINA APRIL 28 - MAY 1, 2014 15A NCAC 2L NC Groundwater Solid Waste Parameter Standard for Class Protection Section Limit8103-MW-2 8103-MW-3 8103-MW-4 8103-MW-6 8103-MW-7 8103-MW-8 8103-MW-9 8103-MW-10B GA Groundwater Standard (SWSL) ANTIMONY BQL BQL BQL BQL BQL BQL BQL 1.3 J *1.0 6.0 ARSENIC BQL BQL BQL 6.3 J BQL BQL BQL BQL 10.0 *10.0 BARIUM 21.4 J 127.0 174.0 362.0 119.0 184.0 57.1 J 322.0 700.0 *100 BERYLLIUM BQL BQL BQL BQL BQL BQL BQL 1.0 *4.0 1.0 CADMIUM BQL BQL BQL BQL 0.4 J BQL BQL BQL 2.0 *1.0 CHROMIUM BQL BQL 2.3 J 0.8 J 4.4 J 2.4 J 2.2 J 31.8 10.0 *10.0 COBALT BQL 1.6 J 3.5 J 42.0 3.1 J BQL BQL 17.2 *1.0 10.0 COPPER 2.4 J 5.9 J 9.3 J 4.4 J 10.6 3.6 J 2.9 J 25.8 1,000.0 *10.0 LEAD 1.7 J 55.0 7.0 J 6.2 J 6.2 J BQL 2.5 J 12.2 15.0 *10.0 NICKEL BQL 1.0 J 1.9 J 13.9 J 4.3 J BQL 0.7 J 16.0 100.0 *50.0 SELENIUM BQL BQL BQL 8.5 J BQL BQL BQL BQL 20.0 *10.0 SILVER 1.5 J BQL 2.3 J 4.7 J BQL BQL 1.4 J 1.7 J 20.0 *10.0 THALLIUM BQL BQL 3.2 J 13.5 BQL BQL 2.9 J BQL *0.28 5.5 VANADIUM 0.6 J 1.7 J 9.2 J 1.9 J 7.1 J BQL BQL 55.7 *0.3 25.0 ZINC 35.8 36.2 29.1 54.4 56.8 24.8 35.3 81.8 1,000.0 *10.0 15A NCAC 2L NC Groundwater Solid Waste Parameter Standard for Class Protection Section Limit 8103-MW-10C 8103-MW-10D 8103-MW-11A 8103-MW-11B 8103-MW-12 8103-MW-13 8103-MW-14 8103-MW-15 GA Groundwater Standard (SWSL) ANTIMONY 3.5 J BQL BQL 1.5 J BQL BQL BQL BQL *1.0 6.0 ARSENIC BQL BQL BQL BQL BQL BQL BQL BQL 10.0 *10.0 BARIUM 660.0 184.0 222.0 439.0 170.0 135.0 191.0 94.6 J 700.0 *100 BERYLLIUM 2.0 BQL BQL 2.4 BQL BQL BQL BQL *4.0 1.0CADMIUMBQLBQLBQLBQLBQLBQLBQLBQL2.0 *1.0 CHROMIUM 54.6 BQL 4.8 J 37.3 1.8 J 1.7 J 5.7 J 5.1 J 10.0 *10.0 COBALT 32.6 33.2 24.9 18.5 7.2 J 4.6 J 5.0 J 2.2 J *1.0 10.0 COPPER 45.5 3.0 J 14.2 24.9 11.6 4.6 J 12.0 10.1 70.0 *10.0 LEAD 22.4 BQL 4.0 J 18.5 6.4 J 3.8 J 5.0 J 5.6 J 15.0 *10.0 NICKEL 31.0 5.7 J 9.9 J 25.5 J 2.6 J 3.4 J 3.7 J 2.7 J 100.0 *50.0 SELENIUM BQL BQL BQL BQL BQL BQL BQL BQL 20.0 *10.0 SILVER BQL 1.6 J 2.4 J 1.6 J 2.8 J 2.8 J 1.8 J 2.3 J 20.0 *10.0 THALLIUM BQL BQL 7.2 BQL 3.8 J BQL 3.0 J 3.6 J *0.28 5.5 VANADIUM 98.5 BQL 9.2 J 70.8 3.8 J 2.1 J 20.9 J 8.2 J *0.3 25.0 ZINC 138.0 27.3 43.1 114.0 86.8 36.7 36.5 50.3 1,000.0 *10.0 Notes: • All results in parts per billion (ppb) • BQL - Below Method Detection Limit • J - Estimated results. Present but below SWSL• NS - Not Sampled • * - Standard not established • Shaded cells denote concentrations that equal or exceed 2L or Groundwater Protection Standards Well Number Well Number RuthCent_0414 15A NCAC 2L NC Groundwater Solid Waste Parameters Standard for Class Protection Section Limit 8103-MW-2 8103-MW-3 8103-MW-4 8103-MW-6 8103-MW-7 8103-MW-8 8103-MW-9 8103-MW-10B 8103-MW-10C 8103-MW-10D 8103-MW-11A 8103-MW-11B 8103-MW-12 8103-MW-13 8103-MW-14 8103-MW-15 GA Groundwater Standard (SWSL) 1,1,1,2-TETRACHLOROETHANE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL *1.0 5.0 1,1,1-TRICHLOROETHANE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 200.0 *1.0 1,1,2,2-TETRACHLOROETHANE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 0.2 0.18 3.0 1,1,2-TRICHLOROETHANE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL *0.6 1.0 1,1-DICHLOROETHANE BQL BQL BQL BQL 2.1 J BQL BQL 0.6 J BQL 3.4 J BQL BQL BQL BQL BQL BQL 6.0 *5.0 1,1-DICHLOROETHENE BQL BQL BQL BQL BQL BQL BQL BQL BQL 0.3 J BQL BQL BQL BQL BQL BQL 7.0 *5.0 1,2,3-TRICHLOROPROPANE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 0.005 *1.0 1,2-DIBROMO-3-CHLOROPROPANE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 0.04 *13.0 1,2-DIBROMOETHANE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 0.02 *1.0 1,2-DICHLOROBENZENE BQL BQL BQL 0.7 J BQL BQL BQL BQL BQL 0.1 J 0.2 J BQL BQL BQL BQL BQL 20.0 *5.0 1,2-DICHLOROETHANE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 0.4 *1.0 1,2-DICHLOROPROPANE BQL BQL BQL BQL BQL BQL 7.9 BQL BQL BQL BQL BQL BQL BQL BQL BQL 0.6 *1.0 1,4-DICHLOROBENZENE BQL BQL 2.5 10.6 0.1 J BQL BQL BQL BQL 3.5 6.1 0.3 J 0.3 J BQL BQL BQL 6.0 *1.0 2-BUTANONE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 4,000.0 *100.0 2-HEXANONE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL *40.0 50.0 4-METHYL-2-PENTANONE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL *560.0 100.0 ACETONE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 6000.0 *100.0 ACRYLONITRILE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL **200.0 BENZENE BQL BQL 0.3 J 1.2 0.1 J BQL BQL BQL BQL 2.1 0.5 J BQL 0.2 J 0.6 J BQL BQL 1.0 *1.0 BROMOCHLOROMETHANE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL *0.6 3.0 BROMODICHLOROMETHANE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 0.6 *1.0 BROMOFORM BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 4.0 *3.0 BROMOMETHANE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL *10.0 10.0 CARBON DISULFIDE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 700.0 *100.0 CARBON TETRACHLORIDE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 0.3 *1.0 CHLOROBENZENE BQL BQL 4.2 49.5 0.3 J BQL BQL BQL BQL 3.4 11.9 0.4 J 0.5 J 0.2 J BQL BQL 50.0 *3.0 CHLOROETHANE BQL BQL 0.6 J 0.3 J 0.3 J BQL BQL BQL BQL 1.0 J 0.5 J BQL BQL 0.7 J 0.2 J BQL 3,000.0 *10.0 CHLOROFORM BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 70.0 *5.0 CHLOROMETHANE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 3.0 *1.0 CIS-1,2-DICHLOROETHENE BQL BQL 0.2 J 0.1 J 0.1 J BQL BQL 1.9 J BQL 21.5 0.3 J BQL BQL 0.8 J 0.3 J BQL 70.0 *5.0 CIS-1,3-DICHLOROPROPENE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 0.4 *1.0 DIBROMOCHLOROMETHANE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 0.4 0.41 3.0 DIBROMOMETHANE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL *70.0 10.0 ETHYLBENZENE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 600.0 *1.0 METHYL IODIDE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL **10.0 METHYLENE CHLORIDE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 5.0 *1.0 STYRENE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 70.0 *1.0 TETRACHLOROETHENE BQL BQL BQL BQL BQL BQL 0.5 J 0.6 J BQL 2.4 BQL BQL BQL BQL BQL BQL 0.7 *1.0 TOLUENE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 600.0 *1.0 TOTAL XYLENES BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 0.4 J BQL BQL 500.0 *5.0 TRANS-1,2-DICHLOROETHENE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 100.0 *5.0 TRANS-1,3-DICHLOROPROPENE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 0.4 *1.0 TRANS-1,4-DICHLORO-2-BUTENE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL **100.0 TRICHLOROETHENE BQL BQL BQL BQL BQL BQL BQL 0.3 J BQL 2.0 BQL BQL BQL BQL BQL BQL 3.0 *1.0 TRICHLOROFLUOROMETHANE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 2.2 11.3 2,000.0 *1.0 VINYL ACETATE BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL *88.0 50.0 VINYL CHLORIDE BQL BQL 0.5 J 2.3 BQL BQL BQL BQL BQL 0.5 J 0.8 J BQL BQL 0.3 J BQL BQL 0.03 *1.0 • All results in parts per billion (ppb) • BQL - Below Method Detection Limit • J - Estimated result. Present but below SWSL • B - Lab blank contamination • NS - Not Sampled • * - Standard not established • Shaded cells denote concentrations that equal or exceed 2L or Groundwater Protection Standards • For constituents that are not naturally occurring and have no established standards, the SWSLs are the Standards Well Number TABLE 4 GROUNDWATER SAMPLING RESULTS APPENDIX I VOLATILE ORGANIC CONSTITUENTS BY SW-846 METHOD 8260 CENTRAL SANITARY LANDFILL (# 81-03) RUTHERFORD COUNTY, NORTH CAROLINA APRIL 28 - MAY 1, 2014 RuthCent_0414 15A NCAC 2L NC Groundwater Solid Waste SW-846 Standard for Class Protection Section Limit Parameter Method 8103-MW-4 8103-MW-6 8103-MW-7 8103-MW-8 8103-MW-9 8103-MW-10B 8103-MW-10C 8103-MW-10D 8103-MW-11A 8103-MW-11B GA Groundwater Standard (SWSL) 1,3-Dichlorobenzene 8260 0.1 J 0.7 J BQL BQL BQL BQL BQL BQL 0.4 J BQL 200.0 *5.0 1,3-Dichloropropane 8260 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL **1.0 Dichlorodifluoromethane 8260 BQL BQL 0.2 J BQL BQL BQL BQL 0.3 J BQL BQL 1,000.0 *5.0 4,4'- DDD 8081 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 0.1 *0.1 4,4'- DDT 8081 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 0.1 *0.1 alpha-BHC 8081 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL *0.006 0.05 beta-BHC 8081 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL *0.019 0.05 delta-BHC 8081 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL *0.019 0.05 Endrin 8081 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 2.0 *0.1 gamma-BHC (Lindane)8081 BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL 0.03 *0.05 Mercury 7470 0.01 J 0.06 J 0.04 J 0.06 J 0.04 J 0.06 J 0.05 J 0.06 J 0.16 J 0.17 J 1.0 *0.2 Notes: • All results in parts per billion (ppb) • BQL - Below Method Detection Limit • J - Estimated result. Present but below SWSL • * - Standard not established • Shaded cells denote concentrations that equal or exceed 2L or Groundwater Protection Standards • For constituents that are not naturally occurring and have no established standards, the SWSLs are the Standards • NA - Not analyzed Well Number RUTHERFORD COUNTY, NORTH CAROLINA APRIL 28 - MAY 1, 2014 TABLE 5 GROUNDWATER SAMPLING RESULTS APPENDIX II TRIGGERED CONSTITUENTS CENTRAL SANITARY LANDFILL (# 81-03) RuthCent_0414 TABLE 6 GROUNDWATER SAMPLING RESULTS APPENDIX II INORGANIC CONSTITUENTS CENTRAL SANITARY LANDFILL (#81-03) RUTHERFORD COUNTY, NORTH CAROLINA APRIL 28 - MAY 1, 2014 15A NCAC 2L NC Groundwater Solid Waste Parameter Laboratory Standard for Class Protection Section Limit Method 8103-MW-4 8103-MW-6 8103-MW-7 8103-MW-8 8103-MW-9 GA Groundwater Standard (SWSL) ANTIMONY SW 846 6010 BQL BQL BQL BQL BQL *1.0 6.0 ARSENIC SW 846 6010 BQL 6.3 J BQL BQL BQL 10.0 *10.0 BARIUM SW 846 6010 174.0 362.0 119.0 184.0 57.1 J 700.0 *100.0 BERYLLIUM SW 846 6010 BQL BQL BQL BQL BQL *4.0 1.0 CADMIUM SW 846 6010 BQL BQL 0.4 J BQL BQL 2.0 *1.0 CHROMIUM SW 846 6010 2.3 J 0.8 J 4.4 J 2.4 J 2.2 J 10.0 *10.0 COBALT SW 846 6010 3.5 J 42.0 3.1 J BQL BQL *1.0 10.0 COPPER SW 846 6010 9.3 J 4.4 J 10.6 3.6 J 2.9 J 1,000.0 *10.0 CYANIDE EPA 335.2 BQL BQL BQL BQL BQL 70.0 *10.0 LEAD SW 846 6010 7.0 J 6.2 J 6.2 J BQL 2.5 J 15.0 *10.0 MERCURY SW 846 7470 0.01 J 0.08 J 0.04 J 0.06 J 0.04 J 1.0 *0.2 NICKEL SW 846 6010 1.9 J 13.9 J 4.3 J BQL 0.7 J 100.0 *50.0 SELENIUM SW 846 6010 BQL 8.5 J BQL BQL BQL 20.0 *10.0 SILVER SW 846 6010 2.3 J 4.7 J BQL BQL 1.4 J 20.0 *10.0 SULFIDE EPA 376.1 BQL BQL BQL BQL BQL **1,000.0 THALLIUM SW 846 6010 3.2 J 13.5 BQL BQL 2.9 J *0.28 5.5 TIN SW 846 6010 BQL BQL BQL BQL BQL *2,000.0 100.0 VANADIUM SW 846 6010 9.2 J 1.9 J 7.1 J BQL BQL *0.3 25.0 ZINC SW 846 6010 29.1 54.4 56.8 24.8 35.3 1,000.0 *10.0 Notes: • All results in parts per billion (ppb) • BQL - Below Method Detection Limit • J - Estimated result. Present but below SWSL • * - Standard not established • Shaded cells denote concentrations that equal or exceed the 2L or Groundwater Protection Standards • NS - Not Sampled RuthCent_0414 TABLE 7 GROUNDWATER SAMPLING RESULTS APPENDIX II VOLATILE ORGANIC CONSTITUENTS BY SW-846 METHOD 8260 CENTRAL SANITARY LANDFILL (#81-03) RUTHERFORD COUNTY, NORTH CAROLINA APRIL 28 - MAY 1, 2014 15A NCAC 2L NC Groundwater Solid Waste Parameters Standard for Class Protection Standard Section Limit 8103-MW-4 8103-MW-6 8103-MW-7 8103-MW-8 8103-MW-9 GA Groundwater (SWSL) 1,1,1,2-TETRACHLOROETHANE BQL BQL BQL BQL BQL *1.0 5.0 1,1,1-TRICHLOROETHANE BQL BQL BQL BQL BQL 200.0 *1.0 1,1,2,2-TETRACHLOROETHANE BQL BQL BQL BQL BQL 0.2 0.18 3.0 1,1,2-TRICHLOROETHANE BQL BQL BQL BQL BQL *0.6 1.0 1,1-DICHLOROETHANE BQL BQL 2.1 J BQL BQL 6.0 *5.0 1,1-DICHLOROETHENE BQL BQL BQL BQL BQL 7.0 *5.0 1,1-DICHLOROPROPENE BQL BQL BQL BQL BQL **5.0 1,2,3-TRICHLOROPROPANE BQL BQL BQL BQL BQL 0.005 *1.0 1,2,4-TRICHLOROBENZENE1 BQL BQL BQL BQL BQL 70.0 70.0 10 1,2-DIBROMO-3-CHLOROPROPANE BQL BQL BQL BQL BQL 0.04 *13.0 1,2-DIBROMOETHANE BQL BQL BQL BQL BQL 0.02 *1.0 1,2-DICHLOROBENZENE BQL 0.7 J BQL BQL BQL 20.0 *5.0 1,2-DICHLOROETHANE BQL BQL BQL BQL BQL 0.4 *1.0 1,2-DICHLOROPROPANE BQL BQL BQL BQL 7.9 0.6 *1.0 1,3-DICHLOROBENZENE 0.1 J 0.7 J BQL BQL BQL 200.0 *5.0 1,3-DICHLOROPROPANE BQL BQL BQL BQL BQL **1.0 1,4-DICHLOROBENZENE 2.5 10.6 0.1 J BQL BQL 6.0 *1.0 2,2-DICHLOROPROPANE BQL BQL BQL BQL BQL **15.0 2-BUTANONE BQL BQL BQL BQL BQL 4,000.0 *100.0 2-HEXANONE BQL BQL BQL BQL BQL *40.0 50.0 4-METHYL-2-PENTANONE BQL BQL BQL BQL BQL *560.0 100.0 ACETONE BQL BQL BQL BQL BQL 6,000.0 *100.0 ACETONITRILE BQL BQL BQL BQL BQL *42.0 55.0 ACROLEIN BQL BQL BQL BQL BQL *4.0 53.0 ACRYLONITRILE BQL BQL BQL BQL BQL **200.0 ALLYL CHLORIDE (3-chloropropene)BQL BQL BQL BQL BQL **10.0 BENZENE 0.3 J 1.2 0.1 J BQL BQL 1.0 *1.0 BROMOCHLOROMETHANE BQL BQL BQL BQL BQL *0.6 3.0 BROMODICHLOROMETHANE BQL BQL BQL BQL BQL 0.6 *1.0 BROMOFORM BQL BQL BQL BQL BQL 4.0 *3.0 BROMOMETHANE BQL BQL BQL BQL BQL *10.0 10.0 CARBON DISULFIDE BQL BQL BQL BQL BQL 700.0 *100.0 CARBON TETRACHLORIDE BQL BQL BQL BQL BQL 0.3 *1.0 CHLOROBENZENE 4.2 49.5 0.3 J BQL BQL 50.0 *3.0 CHLOROETHANE 0.6 J 0.3 J 0.3 J BQL BQL 3,000.0 *10.0 CHLOROFORM BQL BQL BQL BQL BQL 70.0 *5.0 CHLOROMETHANE BQL BQL BQL BQL BQL 3.0 *1.0 CHLOROPRENE BQL BQL BQL BQL BQL **20.0 CIS-1,2-DICHLOROETHENE 0.2 J 0.1 J 0.1 J BQL BQL 70.0 *5.0 CIS-1,3-DICHLOROPROPENE BQL BQL BQL BQL BQL 0.4 *1.0 DIBROMOCHLOROMETHANE BQL BQL BQL BQL BQL 0.4 0.41 3.0 DIBROMOMETHANE BQL BQL BQL BQL BQL *70.0 10.0 DICHLORODIFLOUROMETHANE BQL BQL 0.2 J BQL BQL 1,000.0 *5.0 ETHYL BENZENE BQL BQL BQL BQL BQL 600.0 *1.0 ETHYL METHACRYLATE BQL BQL BQL BQL BQL **10.0 ISOBUTYL ALCOHOL BQL BQL BQL BQL BQL **100.0 METHACRYLONITRILE BQL BQL BQL BQL BQL **100.0 METHYL IODIDE BQL BQL BQL BQL BQL **10.0 METHYL METHACRYLATE BQL BQL BQL BQL BQL *25.0 30.0 METHYLENE CHLORIDE BQL BQL BQL BQL BQL 5.0 *1.0 PROPIONITRILE BQL BQL BQL BQL BQL **150.0 STYRENE BQL BQL BQL BQL BQL 70.0 *1.0 TETRACHLOROETHENE BQL BQL BQL BQL 0.5 J 0.7 *1.0 TOLUENE BQL BQL BQL BQL BQL 600.0 *1.0 TOTAL XYLENES BQL BQL BQL BQL BQL 500.0 *5.0 TRANS-1,2-DICHLOROETHENE BQL BQL BQL BQL BQL 100.0 *5.0 TRANS-1,3-DICHLOROPROPENE BQL BQL BQL BQL BQL 0.4 *1.0 TRANS-1,4-DICHLORO-2-BUTENE BQL BQL BQL BQL BQL **100.0 TRICHLOROETHENE BQL BQL BQL BQL BQL 3.0 *1.0 TRICHLOROFLUOROMETHANE BQL BQL BQL BQL BQL 2,000.0 *1.0 VINYL ACETATE BQL BQL BQL BQL BQL *88.0 50.0 VINYL CHLORIDE 0.5 J 2.3 BQL BQL BQL 0.03 *1.0 Notes: • All results in parts per billion (ppb) • BQL - Below Method Detection Limit • J - Estimated result. Present but below reporting limit. • * - Standard not established • Shaded cells denote concentrations that equal or exceed 2L or Groundwater Protection Standards • For constituents that are not naturally occurring and have no established standards, the SWSLs are the Standards • 1 Analyzed by SW-846 Method 8270 Sample Locations RuthCent_0414 TABLE 8 GROUNDWATER SAMPLING RESULTS APPENDIX II SEMI-VOLATILE CONSTITUENTS BY SW-846 METHOD 8270 CENTRAL SANITARY LANDFILL (# 81-03), RUTHERFORD COUNTY, NORTH CAROLINA APRIL 28 - MAY 1, 2014 15A NCAC 2L NC Groundwater Solid Waste Parameter Standard for Class Protection Section Limit8103-MW-4 8103-MW-6 8103-MW-7 8103-MW-8 8103-MW-9 GA Groundwater Standard (SWSL) 0,0,0-TRIETHYL PHOSPHOROTHIOATE BQL BQL BQL BQL BQL **10.0 0,0-DIETHYL o-2-PYROZINYL BQL BQL BQL BQL BQL **20.0 1,2,4,5-TETRACHLOROBENZENE BQL BQL BQL BQL BQL *2.0 10.01,2,4-TRICHLOROBENZENE BQL BQL BQL BQL BQL 70.0 70.0 10.0 1,4-NAPHTHOQUINONE BQL BQL BQL BQL BQL **10.0 1-NAPHTHYLAMINE BQL BQL BQL BQL BQL **10.02,3,4,6-TETRACHLOROPHENOL BQL BQL BQL BQL BQL 200.0 10.0 2,4,5-TRICHLOROPHENOL BQL BQL BQL BQL BQL *63.0 10.0 2,4,6-TRICHLOROPHENOL BQL BQL BQL BQL BQL *4.0 10.0 2,4-DICHLOROPHENOL BQL BQL BQL BQL BQL *0.98 10.0 2,4-DIMETHYLPHENOL BQL BQL BQL BQL BQL 100.0 10.0 2,4-DINITROPHENOL BQL BQL BQL BQL BQL **50.0 2,4-DINITROTOLUENE BQL BQL BQL BQL BQL *0.1 10.0 2,6-DICHLOROPHENOL BQL BQL BQL BQL BQL **10.0 2,6-DINITROTOLUENE BQL BQL BQL BQL BQL **10.0 2-ACETYLAMINOFLUORENE BQL BQL BQL BQL BQL **20.0 2-CHLORONAPHTHALENE BQL BQL BQL BQL BQL **10.02-CHLOROPHENOL BQL BQL BQL BQL BQL 0.4 10.0 2-METHYLNAPHTHALENE BQL BQL BQL BQL BQL 30.0 10.0 2-METHYLPHENOL (O-CRESOL)BQL BQL BQL BQL BQL *400.0 10.0 2-NAPHTHYLAMINE BQL BQL BQL BQL BQL **10.0 2-NITROANILINE BQL BQL BQL BQL BQL **50.0 2-NITROPHENOL BQL BQL BQL BQL BQL **10.0 3 & 4-METHYLPHENOL (M & P-CRESOL)BQL BQL BQL BQL BQL 400/40 *10.0 3,3'-DICHLOROBENZIDINE BQL BQL BQL BQL BQL **20.0 3,3'-DIMETHYLBENZIDINE BQL BQL BQL BQL BQL **10.0 3-METHYLCHOLANTHRENE BQL BQL BQL BQL BQL **10.0 3-NITROANILINE BQL BQL BQL BQL BQL **50.0 4,6-DINITRO-o-CREOSOL1 BQL BQL BQL BQL BQL **50.0 4-AMINOBIPHENYL BQL BQL BQL BQL BQL **20.0 4-BROMOPHENYL PHENYL ETHER BQL BQL BQL BQL BQL **10.0 4-CHLORO-3-METHYLPHENOL BQL BQL BQL BQL BQL **20.0 4-CHLOROANILINE BQL BQL BQL BQL BQL **20.0 4-CHLOROPHENYL PHENYL ETHER BQL BQL BQL BQL BQL **10.0 4-NITROANILINE BQL BQL BQL BQL BQL **20.0 4-NITROPHENOL BQL BQL BQL BQL BQL **50.0 5-NITRO-O-TOLUIDINE BQL BQL BQL BQL BQL **10.0 7,12-DIMETHYLBENZ[A]ANTHRACENE BQL BQL BQL BQL BQL **10.0ACENAPHTHENEBQL2.6 J BQL BQL BQL 80.0 10.0 ACENAPHTHYLENE BQL BQL BQL BQL BQL 200.0 10.0 ACETOPHENONE BQL BQL BQL BQL BQL *700.0 10.0 ANTHRACENE BQL BQL BQL BQL BQL 2,000.0 10.0 BENZO(A)ANTHRACENE BQL BQL BQL BQL BQL 0.05 10.0 BENZO(A)PYRENE BQL BQL BQL BQL BQL 0.005 10.0 BENZO(B)FLUORANTHENE BQL BQL BQL BQL BQL 0.05 10.0 BENZO(G,H,I)PERYLENE BQL BQL BQL BQL BQL 200.0 10.0 BENZO(K)FLUORANTHENE BQL BQL BQL BQL BQL 0.5 10.0 BENZYL ALCOHOL BQL BQL BQL BQL BQL *700.0 20.0 BIS(2-CHLORO-1-METHYLETHYL)ETHER2 BQL BQL BQL BQL BQL **10.0 BIS(2-CHLOROETHOXY)METHANE BQL BQL BQL BQL BQL **10.0 BIS(2-CHLOROETHYL)ETHER BQL BQL BQL BQL BQL *0.031 10.0 BIS(2-ETHYLHEXYL)PHTHALATE BQL BQL BQL BQL BQL 3.0 *15.0 BUTYL BENZYL PHTHALATE3 BQL BQL BQL BQL BQL 1,000.0 10.0 CHLOROBENZILATE BQL BQL BQL BQL BQL **10.0 CHRYSENE BQL BQL BQL BQL BQL 5.0 10.0DIALLATE (TOTAL)BQL BQL BQL BQL BQL **10.0 RuthCent_0414 TABLE 8 (CONT.) 15A NCAC 2L NC Groundwater Solid Waste Parameter Standard for Class Protection Section Limit 8103-MW-4 8103-MW-6 8103-MW-7 8103-MW-8 8103-MW-9 GA Groundwater Standard (SWSL) DIBENZ(A,H)ANTHRACENE BQL BQL BQL BQL BQL 0.005 10.0 DIBENZOFURAN BQL BQL BQL BQL BQL *28.0 10.0 DIETHYL PHTHALATE BQL BQL BQL BQL BQL 6,000.0 6,000.0 DIMETHYL PHTHALATE BQL BQL BQL BQL BQL **10.0 DI-N-BUTYLPHTHALATE BQL BQL BQL BQL BQL 700.0 10.0 DI-N-OCTYLPHTHALATE BQL BQL BQL BQL BQL 100.0 10.0 DIPHENYLAMINE BQL BQL BQL BQL BQL **10.0ETHYL METHANESULFONATE BQL BQL BQL BQL BQL **20.0 FLUORANTHENE BQL BQL BQL BQL BQL 300.0 10.0 FLUORENE BQL BQL BQL BQL BQL 300.0 10.0 HEXACHLOROBENZENE BQL BQL BQL BQL BQL 0.02 10.0 HEXACHLOROBUTADIENE BQL BQL BQL BQL BQL 0.4 0.44 10.0 HEXACHLOROCYCLOPENTADIENE BQL BQL BQL BQL BQL *50.0 10.0 HEXACHLOROETHANE BQL BQL BQL BQL BQL *2.5 10.0HEXACHLOROPROPENEBQLBQLBQLBQLBQL**10.0 INDENO(1,2,3-CD)PYRENE BQL BQL BQL BQL BQL 0.05 *10.0 ISODRIN BQL BQL BQL BQL BQL **20.0 ISOPHORONE BQL BQL BQL BQL BQL 40.0 10.0 ISOSAFROLE BQL BQL BQL BQL BQL **10.0 m-DINITROBENZENE4 BQL BQL BQL BQL BQL **20.0 METHAPYRILENE BQL BQL BQL BQL BQL **100.0 METHYL METHANESULFONATE BQL BQL BQL BQL BQL **10.0 N-NITROSODIETHYLAMINE BQL BQL BQL BQL BQL **20.0 N-NITROSODIMETHYLAMINE BQL BQL BQL BQL BQL 0.0007 10.0 N-NITROSODI-N-BUTYLAMINE BQL BQL BQL BQL BQL **10.0 N-NITROSODI-N-PROPYLAMINE BQL BQL BQL BQL BQL **10.0 N-NITROSODIPHENYLAMINE BQL BQL BQL BQL BQL **10.0N-NITROSOMETHYLETHYLAMINE BQL BQL BQL BQL BQL **10.0 N-NITROSOPIPERIDINE BQL BQL BQL BQL BQL **20.0 N-NITROSOPYRROLIDINE BQL BQL BQL BQL BQL **10.0 NAPHTHALENE BQL BQL BQL BQL BQL 6.0 10.0 NITROBENZENE BQL BQL BQL BQL BQL **10.0 O-TOLUIDINE BQL BQL BQL BQL BQL **10.0 P-DIMETHYLAMINOAZOBENZENE BQL BQL BQL BQL BQL **10.0PENTACHLOROBENZENEBQLBQLBQLBQLBQL**10.0 PENTACHLORONITROBENZENE BQL BQL BQL BQL BQL **20.0 PHENACETIN BQL BQL BQL BQL BQL **20.0 PHENANTHRENE BQL BQL BQL BQL BQL 200.0 10.0 PHENOL BQL BQL BQL BQL BQL 30.0 10.0 p-PHENYLENEDIAMINE5 BQL BQL BQL BQL BQL **10.0 PRONAMIDE BQL BQL BQL BQL BQL **10.0 PYRENE BQL BQL BQL BQL BQL 200.0 10.0 SAFROLE BQL BQL BQL BQL BQL **10.0 sym-TRINITROBENZENE6 BQL BQL BQL BQL BQL **10.0 Notes: • All results in parts per billion (ppb) • BQL - Below Method Detection Limit • J - Estimated result. Present but below SWSL• * - Standard not established• Shaded cells denote concentrations that equal or exceed 2L or Groundwater Protection Standards • For constituents that are not naturally occurring and have no established standards, the SWSLs are the Standards • 1 - 4,6-Dinitro-o-creosole = 4,6-Dinitro-2-methylphenol = 2-Methyl-4,6-dinitrophenol • 2 - Bis (2-chloro-1-methylethyl) ether = 2,2-Oxybis(1-chloropropane) = Bis (2-chloroisopropyl) ether • 3 - Butyl benzyl phthalate = Benzylbutylphthalate • 4 - m-Dinitrobenzene = 1,3 Dinitrobenzene • 5 - p-Phenylenediamine = 1,4 Phenylenediamine • 6 - sym-Trinitrobenzene = 1,3,5-Trinitrobenzene • NS - Not Sampled RuthCent_0414 TABLE 9 GROUNDWATER SAMPLING RESULTS APPENDIX II ORGANOPHOSPHORUS PESTICIDES BY SW-846 METHOD 8270 APPENDIX II HERBICIDES BY SW-846 METHODS 8151A and 8270D CENTRAL SANITARY LANDFILL (#81-03) RUTHERFORD COUNTY, NORTH CAROLINA APRIL 28 - MAY 1, 2014 15A NCAC 2L NC Groundwater Solid Waste PARAMETER WELL NUMBER Standard for Class Protection Section Limit 8103-MW-4 8103-MW-6 8103-MW-7 8103-MW-8 8103-MW-9 GA Groundwater Standard (SWSL) PESTICIDES 0,0,0 -TRIETHYL PHOSPHOROTHIOATE BQL BQL BQL BQL BQL **10.0 DIMETHOATE BQL BQL BQL BQL BQL **20.0 DISULFOTON BQL BQL BQL BQL BQL 0.3 10.0 FAMPHUR BQL BQL BQL BQL BQL **20.0 KEPONE BQL BQL BQL BQL BQL **20.0 METHYL PARATHION BQL BQL BQL BQL BQL **10.0 PARATHION BQL BQL BQL BQL BQL **10.0 PHORATE BQL BQL BQL BQL BQL 1.0 10.0 THIONAZIN1 BQL BQL BQL BQL BQL **20.0 HERBICIDES 2,4,5-T BQL BQL BQL BQL BQL **2.0 2,4,5-TP (SILVEX)BQL BQL BQL BQL BQL 50.0 ** 2,4-D BQL BQL BQL BQL BQL 70.0 2.0 DINOSEB BQL BQL BQL BQL BQL *7.0 1.0 PENTACHLOROPHENOL BQL BQL BQL BQL BQL 0.3 25.0 Notes: • All results in parts per billion (ppb) • BQL - Below Method Detection Limit • J - Estimated result. Present but below SWSL • Shaded cells denote concentrations that equal or exceed 2L or Groundwater Protection Standards • For constituents that are not naturally occurring and have no established standards, the SWSLs are the Standards • 1 - Thionazin = 0,0-Diethyl o-2-pyrozinyl RuthCent_0414 TABLE 10 GROUNDWATER SAMPLING RESULTS APPENDIX II PESTICIDES/PCBS BY SW-846 METHOD 8081/8082 CENTRAL SANITARY LANDFILL (#81-03) RUTHERFORD COUNTY, NORTH CAROLINA APRIL 28 - MAY 1, 2014 15A NCAC 2L NC Groundwater Solid Waste PARAMETER WELL NUMBER Standard for Class Protection Section Limit8103-MW-4 8103-MW-6 8103-MW-7 8103-MW-8 8103-MW-9 GA Groundwater Standard (SWSL) 4,4'-DDD BQL BQL BQL BQL BQL 0.1 0.1 4,4'-DDE BQL BQL BQL BQL BQL **0.1 4,4'-DDT BQL BQL BQL BQL BQL 0.1 0.1 ALDRIN BQL BQL BQL BQL BQL *0.002 0.05 ALPHA-BHC BQL BQL BQL BQL BQL *0.006 0.05 AROCLOR 1016 BQL BQL BQL BQL BQL *0.09 2.0 AROCLOR 1221 BQL BQL BQL BQL BQL *0.09 2.0 AROCLOR 1232 BQL BQL BQL BQL BQL *0.09 2.0 AROCLOR 1242 BQL BQL BQL BQL BQL *0.09 2.0 AROCLOR 1248 BQL BQL BQL BQL BQL *0.09 2.0 AROCLOR 1254 BQL BQL BQL BQL BQL *0.09 2.0 AROCLOR 1260 BQL BQL BQL BQL BQL *0.09 2.0 BETA-BHC BQL BQL BQL BQL BQL *0.019 0.05 CHLORDANE (TOTAL)BQL BQL BQL BQL BQL 0.1 0.5 DELTA-BHC BQL BQL BQL BQL BQL *0.019 0.05 DIELDRIN BQL BQL BQL BQL BQL 0.002 0.075 ENDOSULFAN I BQL BQL BQL BQL BQL 40.0 *0.1 ENDOSULFAN II BQL BQL BQL BQL BQL 42.0 0.1 ENDOSULFAN SULFATE BQL BQL BQL BQL BQL *40.0 0.1 ENDRIN BQL BQL BQL BQL BQL 2.0 0.1 ENDRIN ALDEHYDE BQL BQL BQL BQL BQL 2.0 0.1 GAMMA-BHC (LINDANE)BQL BQL BQL BQL BQL 0.03 0.05 HEPTACHLOR BQL BQL BQL BQL BQL 0.008 0.05 HEPTACHLOR EPOXIDE BQL BQL BQL BQL BQL 0.004 0.075 METHOXYCHLOR BQL BQL BQL BQL BQL 40.0 1.0 TOXAPHENE BQL BQL BQL BQL BQL 0.03 1.5 Notes: • All results in parts per billion (ppb) • BQL - Below Method Detection Limit • J - Estimated result. Present but below SWSL • * - Standard not established • Shaded cells denote concentrations that equal or exceed 2L or Groundwater Protection Standards • For constituents that are not naturally occurring and have no established standards, the SWSLs are the Standards • NS - Not Sampled RuthCent_0414 TABLE 11 GROUNDWATER SAMPLING RESULTS MONITORED NATURAL ATTENUATION PARAMETERS CENTRAL SANITARY LANDFILL (#81-03) RUTHERFORD COUNTY, NORTH CAROLINA APRIL 28 - MAY 1, 2014 15A NCAC 2L NC Groundwater Solid Waste Parameter Laboratory Standard for Class Protection Section Limit Method 8103-MW-2 8103-MW-4 8103-MW-6 8103-MW-8 8103-MW-9 8103-MW-10D 8103-MW-11A GA Groundwater Standard (SWSL) ACETIC ACID AM23G BQL BQL 650 ug/L BQL BQL BQL BQL *** ALKALINITY SM 2320B 72,000 ug/L 433,000 ug/L 563,000 ug/L 92,300 ug/L 41,600 ug/L 167,000 ug/L 428,000 ug/L *** BOD SM 5210B BQL BQL 2,700 ug/L BQL BQL BQL BQL *** BUTYRIC ACID AM23G BQL BQL 73 ug/L BQL BQL BQL 58.0 ug/L *** CARBON DIOXIDE SM 4500 CO2 C 2,380 ug/L 269,000 ug/L 279,000 ug/L 91,100 ug/L 63,000 ug/L 166,000 ug/L 291,000 ug/L *** CHLORIDE SM 4500 CI C 3,800 ug/L 15,700 ug/L 232,000 ug/L 77,000 ug/L 1,900 ug/L 4,800 ug/L 39,400 ug/L 250,000.0 * COD EPA 410.4 20,000 ug/L 35,000 ug/L 103,000 ug/L 29,000 ug/L 26,000 ug/L 23,000 ug/L 40,000 ug/L *** ETHANE AM20GAX BQL 0.051 ug/L 0.21 ug/L BQL BQL 0.038 ug/L 0.19 ug/L *** ETHENE AM20GAX BQL 0.060 ug/L 0.57 ug/L BQL 0.028 ug/L 0.032 ug/L 0.25 ug/L *** HEXANOIC ACID AM23G BQL BQL BQL BQL BQL BQL BQL *** HYDROGEN AM20GAX BQL 0.67 nM 0.80 nM 0.94 nM BQL BQL 0.66 ug/L *** i-HEXANOIC ACID AM23G BQL BQL BQL 170 ug/L BQL BQL BQL *** i-PENTANOIC ACID AM23G BQL BQL BQL BQL BQL BQL BQL *** IRON EPA 200.7 303 ug/L 4,520 ug/L 10,700 ug/L 310 ug/L 65.1 ug/L (J)364 ug/L 8,800 ug/L 300.0 300.0 LACTIC ACID & HIBA AM23G BQL BQL BQL BQL BQL BQL BQL *** METHANE AM20GAX 0.19 ug/L 120 ug/L 940 ug/L BQL BQL 2,000 ug/L 390 ug/L *** NITRATE-NITROGEN SM 4500 N03 E BQL BQL BQL 6,080 ug/L (J)93.0 ug/L (J)BQL BQL 10,000.0 10,000.0 PENTANOIC ACID AM23G BQL BQL BQL BQL BQL BQL BQL *** PROPIONOIC ACID AM23G BQL BQL 130 ug/L BQL BQL BQL BQL *** PYRUVIC ACID AM23G BQL BQL BQL BQL BQL BQL BQL *** SULFATE SM 4500 S04 E BQL BQL BQL 16,100 ug/L (J)BQL BQL 10,400 ug/L 250,000.0 250,000.0 SULFIDE EPA 376.1 BQL BQL BQL BQL BQL BQL BQL **1,000.0 TOTAL ORGANIC CARBON SM 5310C BQL 3,600 ug/L 26,200 ug/L 2,200 ug/L BQL 1,230 ug/L 5,940 ug/L *** Notes: • ug/L - micrograms per Liter (ppb) • nM - nano Moles • BQL - Below Method Detection Limit • J - Estimated result. Present but below SWSL • * - Standard not established • NS - Not sampled • Shaded cells denote concentrations that equal or exceed 2L or Groundwater Protection Standards Sample Location RuthCent_0414 TABLE 12 GROUNDWATER AND SURFACE WATER SAMPLING RESULTS C & D PARAMETERS CENTRAL SANITARY LANDFILL (#81-03) RUTHERFORD COUNTY, NORTH CAROLINAAPRIL 28 - MAY 1, 2014 15A NCAC 2L NC Groundwater 15A NCAC 2B Solid WasteParameterLaboratoryStandard for Class Protection Standard for Class Section Limit Method 8103-MW-2 8103-MW-3 8103-MW-12 8103-MW-13 8103-MW-14 8103-MW-15 8103-SW-2 8103-SW-3 8103-SW-4 8103-SW-5A GA Groundwater Standard B,C Surface Water (SWSL) ALKALINITY SM 2320B 72,000 281,000 338,000 82,100 59,600 27,000 26,500 22,500 21,400 37,100 **** ALUMINUM SW 846 6010C 208.0 450.0 1,240.0 1,020.0 9,110.0 5,430.0 202.0 119.0 367.0 161.0 *3,500 ** CHLORIDE SM 4500 CI C 3,800 32,300 11,900.0 2,400 2,400 5,700 3,800 4,300 2,400 2,400 250,000.0 *230,000[1]* IRON EPA 200.7 303.0 1,250.0 1,900.0 2,740.0 8,000.0 4,040.0 269.0 J 275.0 J 340.0 253.0 J 300.0 *1,000[1]300.0 MANGANESE SW 846 6010 5.0 J 248.0 3,620.0 881.0 247.0 84.4 40.2 J 29.5 J 20.3 J 19.2 J 50.0 **50.0 MERCURY SW 846 7470 0.06 J 0.06 J 0.05 J 0.09 J 0.07 J 0.06 J 0.05 J 0.06 J 0.05 J 0.05 J 1.0 *0.012 0.200 SULFATE SM 4500 S04 E BQL 59,900 J 15,800 J BQL 20,500 J 22,800 J BQL BQL BQL BQL 250,000.0 **250,000.0 TDS SM 2540 C 87,000 509,000 391,000 109,000 118,000 92,000 63,000 53,000 43,000 49,000 500,000.0 *** Tetrahydrofuran SW 846 8260B BQL BQL BQL BQL BQL BQL BQL BQL BQL BQL **** Notes: • All results in parts per billion (ppb) • BQL - Below Method Detection Limit • J - Estimated result. Present but below SWSL • * - Standard/Limit not established • NS - Not sampled • [1] - Action Level • Shaded cells denote concentrations that equal or exceed 2B Standards, 2L Standards, Groundwater Protection Standards, or Action Levels Sample Location RuthCent_0414 Well 12/22/1993 04/19/1994 06/28/1994 03/20/1995 08/08/1995 09/28/1995 10/24/1995 01/23/1996 08/28/1996 03/12-13/1997 09/09/1997 03/25/1998 09/17-18/1998 03/23/1999 09/22-23/1999 03/07-08/2000 09/19-20/2000 8103-MW-2 I I I I I, II I1, II(t)I, II(t)I, II I, II(t)I, II I, II(t)2 I, II I, II(t)I I I I 8103-MW3 I I I I I I I I I I I I I 8103-MW-4 I I I I I, II I1, II(t)I, II(t)I, II I, II(t)I, II I, II(t)2 I, II I, II(t)I, II I, II(t)I, II I, II(t) 8103-MW-6 I I, II I1, II(t)I, II(t)I, II I, II(t)I, II I, II(t)2 I, II I, II(t)I, II I, II(t)I, II I, II(t) 8103-MW-7 I I, II I1, II(t)I, II(t)I, II I, II(t)I, II I, II(t)2 I, II I, II(t)I, II I, II(t)I, II I, II(t) 8103-MW-8 I I, II I1, II(t)I, II(t)I, II I, II(t)I, II I, II(t)2 I, II I, II(t)I, II I, II(t)I, II I, II(t) 8103-MW-9 I I, II I1, II(t)I, II(t)I, II I, II(t)I, II I, II(t)2 I, II I, II(t)I, II I, II(t)I, II I, II(t) 8103-MW-10A I, II(t) 8103-MW-10B I, II(t)I, II(t)3 I, II(t)I, II(t)I, II(t) 8103-MW-10C I, II(t)I, II(t)3 I, II(t)I, II(t)I, II(t) 8103-MW-10D I, II(t)3 I, II(t)I, II(t)I, II(t) 8103-MW-11A I, II(t)I, II(t)3 I, II(t)I, II(t)I, II(t) 8103-MW-11B I, II(t)I, II(t)3 I, II(t)I, II(t)I, II(t) 8103-MW-12 8103-MW-13 8103-MW-14 8103-MW-15 • I - denotes well was sampled for Appendix I constituents on this date • II - denotes well was sampled for Appendix II constituents on this date• II(t) - denotes well was sampled for Appendix II triggered constituents (1,3-dichloropropane, alpha-BHC, beta-BHC, delta-BHC, dichlorodifluoromethane, endrin, and gamma-BHC) on this date• MNA - denotes well was sampled for Monitored Natural Attenuation constituents • C&D - denotes well was sampled for Construction and Demolition constituents • 1 - Appendix I volatiles only • 2 - Mercury and endrin aldehyde added to Appendix II triggered constituent list • 3 - 4,4'-DDD and 4,4'-DDT added to Appendix II triggered constituent list • 4 - Aluminum added to C&D constituent list TABLE 13SUMMARY OF SAMPLING EVENTS CENTRAL SANITARY LANDFILL (#81-03) RUTHERFORD COUNTY, NORTH CAROLINA RuthCent_0414 Well 04/11/2001 09/12-13/2001 04/03/2002 06/27/2002 10/02/2002 04/02-03/2003 09/03/2003 04/06/2004 10/27/2004 04/05/2005 09/08/2005 04/04-05/2006 10/26-27/2006 5/22-23/2007 10/23-26/2007 05/06-08/2008 09/22-25/2008 8103-MW-2 I I I I I I I I I I I I I, MNA I, MNA, C&D I, MNA, C&D 8103-MW-3 I I I I I I I I I I I I I I I, C&D I, C&D 8103-MW-4 I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t), MNA I, II, MNA I, II(t), MNA 8103-MW-6 I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t), MNA I, II, MNA I, II(t), MNA 8103-MW-7 I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t) 8103-MW-8 I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t), MNA I, II, MNA I, II(t), MNA 8103-MW-9 I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t)I, II I, II(t), MNA I, II, MNA I, II(t), MNA 8103-MW-10A 8103-MW-10B I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t) 8103-MW-10C I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t) 8103-MW-10D I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t), MNA I, II(t), MNA I, II(t), MNA 8103-MW-11A I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t), MNA I, II(t), MNA I, II(t), MNA 8103-MW-11B I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t) 8103-MW-12 l l I l I l I I I I I I I, C&D I, C&D 8103-MW-13 l l I l I l I I I I I I I, C&D I, C&D 8103-MW-14 I, C&D I, C&D 8103-MW-15 I, C&D I, C&D • I - denotes well was sampled for Appendix I constituents on this date • II - denotes well was sampled for Appendix II constituents on this date • II(t) - denotes well was sampled for Appendix II triggered constituents (1,3-dichloropropane, alpha-BHC, beta-BHC, delta-BHC, dichlorodifluoromethane, endrin, and gamma-BHC) on this date • MNA - denotes well was sampled for Monitored Natural Attenuation constituents • C&D - denotes well was sampled for Construction and Demolition constituents • 1 - Appendix I volatiles only • 2 - Mercury and endrin aldehyde added to Appendix II triggered constituent list • 3 - 4,4'-DDD and 4,4'-DDT added to Appendix II triggered constituent list • 4 - Aluminum added to C&D constituent list TABLE 13 (cont.) SUMMARY OF SAMPLING EVENTS CENTRAL SANITARY LANDFILL (#81-03)RUTHERFORD COUNTY, NORTH CAROLINA RuthCent_0414 Well 05/18-05/21, 2009 10/07-10/09, 2009 05/17-05/20, 2010 09/20-09/23, 2010 04/25-05/02, 2011 09/27-09/30, 2011 04/30-05/03, 2012 09/25-10/03, 2012 04/15-18/2013 09/23-09/28, 2013 04/28-05/1, 2014 8103-MW-2 I, MNA, C&D I, MNA, C&D I, MNA, C&D I, MNA, C&D4 I, MNA, C&D I, MNA, C&D I, MNA, C&D I, MNA, C&D I, MNA, C&D I, MNA, C&D I, MNA, C&D6 8103-MW-3 I, C&D I, C&D I, C&D I, C&D4 I, C&D I, C&D I, C&D I, C&D I, C&D I, C&D I, C&D6 8103-MW-4 I, II, MNA I, II(t), MNA I, II, MNA I, II(t), MNA I, II, MNA I, II(t)5, MNA I, II, MNA I, II(t), MNA I, II, MNA I, II(t), MNA I, II, MNA 8103-MW-6 I, II, MNA I, II(t), MNA I, II, MNA I, II(t), MNA I, II, MNA I, II(t)5, MNA I, II, MNA I, II(t), MNA I, II, MNA I, II(t), MNA I, II, MNA 8103-MW-7 I, II I, II(t)I, II I, II(t)I, II I, II(t)5, MNA I, II I, II(t)I, II I, II(t)I, II 8103-MW-8 I, II, MNA I, II(t), MNA I, II(t), MNA I, II, MNA I, II(t)5, MNA I, II, MNA I, II(t), MNA I, II, MNA I, II(t), MNA I, II, MNA 8103-MW-9 I, II, MNA I, II(t), MNA I, II, MNA I, II(t), MNA I, II, MNA I, II(t)5, MNA I, II, MNA I, II(t), MNA I, II, MNA I, II(t), MNA I, II, MNA 8103-MW-10A 8103-MW-10B I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)5 I, II(t)I, II(t)I, II(t)I, II(t)I, II(t) 8103-MW-10C I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)5 I, II(t)I, II(t)I, II(t)I, II(t)I, II(t) 8103-MW-10D I, II(t), MNA I, II(t), MNA I, II(t), MNA I, II(t), MNA I, II(t), MNA I, II(t)5, MNA I, II(t), MNA I, II(t), MNA I, II(t), MNA I, II(t), MNA I, II(t), MNA 8103-MW-11A I, II(t), MNA I, II(t), MNA I, II(t), MNA I, II(t), MNA I, II(t), MNA I, II(t)5, MNA I, II(t), MNA I, II(t), MNA I, II(t), MNA I, II(t), MNA I, II(t), MNA 8103-MW-11B I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)I, II(t)5 I, II(t)I, II(t)I, II(t)I, II(t)I, II(t) 8103-MW-12 I, C&D I, C&D I, C&D I, C&D4 I, C&D I, C&D I, C&D I, C&D I, C&D I, C&D I, C&D6 8103-MW-13 I, C&D I, C&D I, C&D I, C&D4 I, C&D I, C&D I, C&D I, C&D I, C&D I, C&D I, C&D6 8103-MW-14 I, C&D I, C&D I, C&D I, C&D4 I, C&D I, C&D I, C&D I, C&D I, C&D I, C&D I, C&D6 8103-MW-15 I, C&D I, C&D I, C&D I, C&D4 I, C&D I, C&D I, C&D I, C&D I, C&D I, C&D I, C&D6 • I - denotes well was sampled for Appendix I constituents on this date• II - denotes well was sampled for Appendix II constituents on this date• II(t) - denotes well was sampled for Appendix II triggered constituents (1,3-dichloropropane, alpha-BHC, beta-BHC, delta-BHC, dichlorodifluoromethane, endrin, and gamma-BHC) on this date • MNA - denotes well was sampled for Monitored Natural Attenuation constituents • C&D - denotes well was sampled for Construction and Demolition constituents • 1 - Appendix I volatiles only • 2 - Mercury and endrin aldehyde added to Appendix II triggered constituent list • 3 - 4,4'-DDD and 4,4'-DDT added to Appendix II triggered constituent list • 4 - Aluminum added to C&D constituent list • 5 - 1,3-dichlorobenzene added to Appendix II triggered constituent list • 6 - Tetrahydrofuran added to C&D constituent list TABLE 13 (cont.)SUMMARY OF SAMPLING EVENTSCENTRAL SANITARY LANDFILL (#81-03)RUTHERFORD COUNTY, NORTH CAROLINA RuthCent_0414 TABLE 14 GROUNDWATER FLOW RATES CENTRAL SANITARY LANDFILL (#81-03) RUTHERFORD COUNTY, NORTH CAROLINA APRIL 28 - MAY 1, 2014 Hydraulic Conductivity Effective Velocity Velocity Well No.(cm/sec)Gradient Porosity (cm/sec)(ft/yr) 8103-MW-2 1.3 x 10-5 0.098 .20 6.34 x 10-6 6.57 8103-MW-4 3.7 x 10-6 0.044 .20 8.15 x 10-7 0.84 8103-MW-6 2.4 x 10-5 0.132 .20 1.58 x 10-5 16.35 8103-MW-7 2.9 x 10-6 0.160 .201 2.32 x 10-6 2.40 8103-MW-8 1.6 x 10-4 0.038 .20 3.05 x 10-5 31.60 8103-MW-9 2.1 x 10-5 0.024 .20 2.48 x 10-6 2.57 The above results were obtained by using the relation: V =Ki n Where K = hydraulic conductivity i = gradient n = effective porosity V = velocity 1 Porosity value may not reflect true nature of fractured bedrock. 8103-MW-7 is screened in rock. RuthCent_0414 TABLE 15 SURFACE WATER SAMPLING RESULTS APPENDIX I INORGANIC CONSTITUENTS BY SW-846 METHOD 6010CENTRAL SANITARY LANDFILL (#81-03) RUTHERFORD COUNTY, NORTH CAROLINA APRIL 28 - MAY 1, 2014 15A NCAC 2B Solid Waste Parameter Standard for Class Section Limit 8103-SW-2 8103-SW-3 8103-SW-4 8103-SW-5A B,C Surface Water (SWSL) ANTIMONY BQL BQL BQL BQL *6.0 ARSENIC BQL BQL BQL BQL 50.0 10.0 BARIUM 37.2 J 28.3 J 31.7 J 32.6 J *100.0 BERYLLIUM BQL BQL BQL BQL 6.5 1.0 CADMIUM BQL BQL BQL BQL 2.0 1.0 CHROMIUM BQL BQL BQL BQL 50.0 10.0 COBALT BQL BQL BQL BQL *10.0 COPPER BQL BQL 3.6 J 6.0 J 7.0[1]10.0 LEAD BQL BQL 2.5 J 2.3 J 25.0 10.0 NICKEL BQL BQL BQL BQL 88.0 50.0 SELENIUM BQL BQL BQL BQL 5.0 10.0 SILVER BQL BQL 2.9 J BQL 0.06[1]10.0 THALLIUM BQL BQL BQL BQL *5.5 VANADIUM 0.8 J BQL 1.4 J 1.0 J *25.0 ZINC 35.8 73.3 48.7 51.6 50.0[1]10.0 Notes: • All results in parts per billion (ppb) • BQL - Below Method Detection Limit • J - Estimated result. Present but below SWSL • * - Standard not established • Shaded cells denote concentrations that equal or exceed 2B Standards or Action Levels • [1] - Action Level • NS - Not sampled. Dry location. Sample Location RuthCent_0414 TABLE 16 SURFACE WATER SAMPLING RESULTS APPENDIX I VOLATILE ORGANIC CONSTITUENTS BY SW-846 METHOD 8260 CENTRAL SANITARY LANDFILL (#81-03) RUTHERFORD COUNTY, NORTH CAROLINA APRIL 28 - MAY 1, 2014 15A NCAC 2B/EPA Solid WasteParametersStandards for Class Section Limit 8103-SW-2 8103-SW-3 8103-SW-4 8103-SW-5 B,C Surface Water (SWSL) 1,1,1,2-TETRACHLOROETHANE BQL BQL BQL BQL *5.0 1,1,1-TRICHLOROETHANE BQL BQL BQL BQL 2,500.0 1.0 1,1,2,2-TETRACHLOROETHANE BQL BQL BQL BQL *3.0 1,1,2-TRICHLOROETHANE BQL BQL BQL BQL *1.0 1,1-DICHLOROETHANE BQL BQL BQL BQL 20,000.0 5.0 1,1-DICHLOROETHENE BQL BQL BQL BQL 5,400.0 5.0 1,2,3-TRICHLOROPROPANE BQL BQL BQL BQL *1.0 1,2-DIBROMO-3-CHLOROPROPANE BQL BQL BQL BQL *13.0 1,2-DIBROMOETHANE BQL BQL BQL BQL *1.0 1,2-DICHLOROBENZENE BQL BQL BQL BQL 470.0 5.0 1,2-DICHLOROETHANE BQL BQL BQL BQL *1.0 1,2-DICHLOROPROPANE BQL BQL BQL BQL *1.0 1,4-DICHLOROBENZENE BQL BQL BQL BQL 100.0 1.0 2-BUTANONE BQL BQL BQL BQL 160,000.0 100.0 2-HEXANONE BQL BQL BQL BQL *50.0 4-METHYL-2-PENTANONE BQL BQL BQL BQL 26,000.0 100.0 ACETONE BQL BQL BQL BQL 2,000.0 100.0 ACRYLONITRILE BQL BQL BQL BQL *55.0 BENZENE BQL BQL BQL BQL *1.0 BROMOCHLOROMETHANE BQL BQL BQL BQL *3.0 BROMODICHLOROMETHANE BQL BQL BQL BQL *1.0 BROMOFORM BQL BQL BQL BQL *3.0 BROMOMETHANE BQL BQL BQL BQL *10.0 CARBON DISULFIDE BQL BQL BQL BQL *100.0 CARBON TETRACHLORIDE BQL BQL BQL BQL *1.0 CHLOROBENZENE BQL BQL BQL BQL 140.0 3.0 CHLOROETHANE BQL BQL BQL BQL *10.0 CHLOROFORM BQL BQL BQL BQL *5.0 CHLOROMETHANE BQL BQL BQL BQL *1.0 CIS-1,2-DICHLOROETHENE BQL BQL BQL BQL *5.0 CIS-1,3-DICHLOROPROPENE BQL BQL BQL BQL 12.0 1.0 DIBROMOCHLOROMETHANE BQL BQL BQL BQL *3.0 DIBROMOMETHANE BQL BQL BQL BQL *10.0 ETHYLBENZENE BQL BQL BQL BQL 97.0 1.0 IODOMETHANE BQL BQL BQL BQL *10.0 METHYLENE CHLORIDE BQL BQL BQL BQL *1.0 STYRENE BQL BQL BQL BQL *1.0 TETRACHLOROETHENE BQL BQL BQL BQL *1.0 TOLUENE BQL BQL BQL BQL 11.0 1.0 TOTAL XYLENES BQL BQL BQL BQL 670.0 5.0 TRANS-1,2-DICHLOROETHENE BQL BQL BQL BQL *5.0 TRANS-1,3-DICHLOROPROPENE BQL BQL BQL BQL 12.0 1.0 TRANS-1,4-DICHLORO-2-BUTENE BQL BQL BQL BQL *100.0 TRICHLOROETHENE BQL BQL BQL BQL *1.0 TRICHLOROFLUOROMETHANE BQL BQL BQL BQL *1.0 VINYL ACETATE BQL BQL BQL BQL *50.0 VINYL CHLORIDE BQL BQL BQL BQL *1.0 Notes: • All results in parts per billion (ppb) • BQL - Below Method Detection Limit • J - Estimated result. Present but below SWSL • * - Standard not established • Shaded cells denote concentrations that equal or exceed 2B Standards • For constituents that are not naturally occurring and have no established standards, the SWSLs are the Standards Sample Location RuthCent_0414 15A NCAC 2L NC Groundwater Solid Waste Parameters Standard for Class Protection Section Limit 8103-MW-2 8103-MW-3 8103-MW-4 8103-MW-6 8103-MW-7 8103-MW-8 8103-MW-9 8103-MW-10B 8103-MW-10C 8103-MW-10D 8103-MW-11A 8103-MW-11B 8103-MW-12 8103-MW-13 8103-MW-14 8103-MW-15 GA Groundwater Standard (SWSL) ALUMINUM 9,110.0 5,430.0 *3,500.0 * ANTIMONY 1.3 J 3.5 J 1.5 J *1.0 6.0 CHROMIUM 31.8 54.8 37.3 10.0 *10.0 COBALT 1.6 J 3.5 J 42.0 3.1 J 17.2 32.6 33.2 24.9 18.5 7.2 J 4.6 J 5.0 J 2.2 J *1.0 10.0 IRON 303.0 1,250.0 4,520.0 10,700.0 310.0 364.0 8,800.0 1,900.0 2,740.0 8,000.0 4,040.0 300.0 *300.0 LEAD 55.0 22.4 18.5 15.0 *10.0 MANGANESE 248.0 3,620.0 881.0 247.0 84.4 50.0 *50.0 THALLIUM 3.2 J 13.5 2.9 J 7.2 3.8 J 3.0 J 3.6 J *0.28 5.5 VANADIUM 0.6 J 1.7 J 9.2 J 1.9 J 7.1 J 55.7 98.5 9.2 J 70.8 3.8 J 2.1 J 20.9 J 8.2 J *0.3 25.0 CHLORIDE 250,000.0 ** NITRATE-NITROGEN 10,000.0 *10,000.0 TOTAL DISSOLVED SOLIDS 509,000.0 500,000.0 ** 1,2-DICHLOROPROPANE 7.9 0.6 *1.0 1,4-DICHLOROBENZENE 10.6 6.0 *1.0 BENZENE 1.2 2.1 1.0 *1.0 CHLOROBENZENE 50.0 *3.0 TETRACHLOROETHENE 2.4 0.7 *1.0 VINYL CHLORIDE 0.5 J 2.3 0.5 J 0.8 J 0.3 J 0.3 *1.0 Notes: • All results in parts per billion (ppb) • J - Estimated result. Present but below SWSL • * - Standard not established • Shaded cells denote concentrations that equal or exceed 2L or Groundwater Protection Standards • For constituents that are not naturally occurring and have no established standards, the SWSLs are the Standards Well Number TABLE 17 NOTIFICATION TABLE CONSTITUENTS DETECTED AT OR ABOVE GROUNDWATER STANDARDS CENTRAL SANITARY LANDFILL (# 81-03) RUTHERFORD COUNTY, NORTH CAROLINA APRIL 28 - MAY 1, 2014 RuthCent_0414 TABLE 18 NOTIFICATION TABLE CONSTITUENTS DETECTED AT OR ABOVE SURFACE WATER STANDARDS CENTRAL SANITARY LANDFILL (#81-03) RUTHERFORD COUNTY, NORTH CAROLINA APRIL 28 - MAY 1, 2014 15A NCAC 2B Solid Waste Parameter Standard for Class Section Limit 8103-SW-2 8103-SW-3 8103-SW-4 8103-SW-5 B,C Surface Water (SWSL) MERCURY 0.05 J 0.06 J 0.05 J 0.05 J 0.012 0.200 SILVER 2.9 J 0.06[1]10.0 TDS 509,000.0 500,000.0 * ZINC 73.3 51.6 50.0[1]* Notes: • All results in parts per billion (ppb) • J - Estimated result. Present but below SWSL • * - Standard not established • Shaded cells denote concentrations that equal or exceed 2B Standards or Action Levels • [1] - Action Level • NS - Not sampled. Dry location Sample Location RUTHERFORD COUNTY CENTRAL SANITARY LANDFILL APPENDIX I DETECTION MONITORING APPENDIX II ASSESSMENT MONITORING APPENDIX II TRIGGERED CONSTITUENTS MNA PARAMETERS C & D PARAMETERS APRIL/MAY 2014 SAMPLING PREPARED FOR RUTHERFORD COUNTY SGC PROJECT NUMBERS 0001.001 AND 0001.006 JUNE 27, 2014 SCARLETT GEOPHYSICAL CONSULTING, P.C. 500 Hepowil Trace 919-477-9519 Hillsborough, NC www.scarlettgeophysics.com RUTHERFORD COUNTY CENTRAL SANITARY LANDFILL APPENDIX I DETECTION MONITORING APPENDIX II ASSESSMENT MONITORING APPENDIX II TRIGGERED CONSTITUENTS MNA PARAMETERS C & D PARAMETERS APRIL/MAY 2014 SAMPLING I hereby certify this 27th day of June, 2014, that this report was prepared by me or under my direct supervision. Principal Geologist/Geophysicist E. W. Scarlett, Jr., P.G. Review performed by: Reviewer C. W. Scarlett TABLE OF CONTENTS 1.0 EXECUTIVE SUMMARY 1 2.0 INTRODUCTION 4 3.0 SCOPE OF WORK 6 4.0 METHODS EMPLOYED 6 4.1 Monitoring Well Sampling 6 4.2 Stream Sampling 7 4.3 MNA Sampling 8 5.0 RESULTS 8 5.1 Groundwater 8 5.1.1 Analytical Results 8 5.1.2 Hydraulic Conductivity 13 5.1.3 Groundwater Flow Direction and Rate 14 5.2 Surface Water 15 5.3 Monitored Natural Attenuation 16 5.4 C & D Monitoring 17 5.5 Notifications 18 5.6 Quality Assurance 18 6.0 REFERENCES 20 TABLES Table 1 Summary of Monitoring Well Data, Central Sanitary Landfill Table 2 Ground and Surface Water Sampling Field Data, Central Sanitary Landfill, April 28-May 1, 2014 Table 3 Groundwater Sampling Results, Appendix I Inorganic Constituents by SW-846 Method 6010, Central Sanitary Landfill, April 28-May 1, 2014 Table 4 Groundwater Sampling Results, Appendix I Volatile Organic Constituents by SW- 846 Method 8260, Central Sanitary Landfill, April 28-May 1, 2014 Table 5 Groundwater Sampling Results, Appendix II Triggered Constituents, Central Sanitary Landfill, April 28-May 1, 2014 Table 6 Groundwater Sampling Results, Appendix II Inorganic Constituents, Central Sanitary Landfill, April 28-May 1, 2014 Table 7 Groundwater Sampling Results, Appendix II Volatile Organic Constituents by SW- 846 Method 8260, Central Sanitary Landfill, April 28-May 1, 2014 Table 8 Groundwater Sampling Results, Appendix II Semi-Volatile Organic Constituents by SW-846 Method 8270, Central Sanitary Landfill, April 28-May 1, 2014 Table 9 Groundwater Sampling Results, Appendix II Organophosphorus Pesticides by SW- 846 Method 8270, Appendix II Herbicides by SW-846 Methods 8151 and 8270, Central Sanitary Landfill, April 28-May 1, 2014 Table 10 Groundwater Sampling Results, Appendix II Pesticides/PCBs by SW-846 Method 8081/8082, Central Sanitary Landfill, April 28-May 1, 2014 Table 11 Groundwater Sampling Results, Monitored Natural Attenuation Parameters, Central Sanitary Landfill, April 28-May 1, 2014 Table 12 Groundwater Sampling Results, C&D Parameters, Central Sanitary Landfill, April 28-May 1, 2014 Table 13 Summary of Sampling Events, Central Sanitary Landfill Table 14 Groundwater Flow Rates, Central Sanitary Landfill, April 28-May 1, 2014 Table 15 Surface Water Sampling Results, Appendix I Inorganic Constituents by SW-846 Method 6010, Central Sanitary Landfill, April 28-May 1, 2014 Table 16 Surface Water Sampling Results, Appendix I Volatile Organic Constituents by SW- 846 Method 8260, Central Sanitary Landfill, April 28-May 1, 2014 Table 17 Notification Table, Constituents Detected At or Above Groundwater Standards, Central Sanitary Landfill, April 28-May 1, 2014 Table 18 Notification Table, Constituents Detected At or Above Surface Water Standards, Central Sanitary Landfill, April 28-May 1, 2014 FIGURES Figure 1 Site Location Map Figure 2 Groundwater Contour Map, April 28-May 1, 2014 APPENDICES Appendix A Ground and Surface Water Sampling Field Data Sheets Appendix B Laboratory Reports RUTHERFORD COUNTY CENTRAL SANITARY LANDFILL APPENDIX I DETECTION MONITORING APPENDIX II ASSESSMENT MONITORING APPENDIX II TRIGGERED CONSTITUENTS MNA PARAMETERS C & D PARAMETERS APRIL/MAY 2014 SAMPLING 1.0 EXECUTIVE SUMMARY Sixteen monitoring wells and four stream locations at the Rutherford County Central Sanitary Landfill were sampled April 28-May 1, 2014. Six of the wells (8103-MW-2, 8103-MW-4, 8103- MW-6, 8103-MW-7, 8103-MW-8, and 8103-MW-9) comprise the Subtitle D groundwater monitoring system for the municipal solid waste disposal area of the landfill. Six monitoring wells comprising two well nests (8103-MW-10A, 8103-MW-10B, 8103-MW-10C, 8103-MW-10D, 8103- MW-11A, and 8103-MW-11B) were installed in August 1998 to provide additional data on the nature and extent of the contaminant plume emanating from the disposal area. 8103-MW-10A has an extremely slow recharge rate and is not used as a sampling location. Five monitoring wells (8103-MW-3, 8103-MW-12, 8103-MW-13, 8103-MW-14, and 8103-MW-15) comprise the groundwater monitoring system for the construction and demolition (C&D) and yard waste disposal areas and the transfer station facility. 8103-MW-2 provides the upgradient groundwater data for the closed MSW and C&D sections of the facility. All sampling was conducted in accordance with North Carolina Solid Waste Management Guidelines. Samples from 8103-MW-2, 8103-MW-3, 8103-MW-4, 8103-MW-6, 8103-MW-7, 8103-MW-8, 8103-MW-9, 8103-MW-10B, 8103-MW-10C, 8103-MW-10D, 8103-MW-11A, 8103-MW-11B, 8103-MW-12, 8103-MW-13, 8103-MW-14, and 8103-MW-15 were submitted to a North Carolina certified laboratory for analysis using the Federal Appendix I list of constituents for detection monitoring. The Appendix I detection monitoring constituent list is a subset of the Federal Appendix II assessment monitoring constituent list. Samples from 8103-MW-4, 8103-MW-6, 8103-MW-7, 8103-MW-8, and 8103-MW-9 were analyzed for the Appendix II assessment monitoring constituents. Samples from 8103-MW-10B, 8103-MW-10C, 8103-MW-10D, 8103- MW-11A, and 8103-MW-11B were also analyzed for triggered Federal Appendix II assessment Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 1 monitoring constituents. In this report, the term "triggered Appendix II constituent" refers to any Appendix II constituent not included in the Appendix I list that was detected above the quantitation limit established by the Solid Waste Section during previous sampling events. Samples from surface water sampling locations 8103-SW-2, 8103-SW-3, 8103-SW-4, and 8103-SW-5 were analyzed for Federal Appendix I detection monitoring constituents. In addition to Appendix I and triggered Appendix II parameters, samples from 8103-MW-2, 8103- MW-4, 8103-MW-6, 8103-MW-9, 8103-MW-10D, and 8103-MW-11A were analyzed for the MNA parameters set forth in the NC Solid Waste Section CAP approval letter dated August 17, 2007. The results of the laboratory analyses and field tests for the MNA parameters are discussed in Section 5.3. In addition to Appendix I and triggered Appendix II parameters, samples from 8103-MW-2, 8103- MW-3, 8103-MW-12, 8103-MW-13, 8103-MW-14, and 8103-MW-15 were analyzed for the C&D parameters set forth in the NC Solid Waste Section approved monitoring plan. Surface water samples 8103-SW-2, 8103-SW-3, and 8103-SW-4 were also analyzed for the C&D parameters. The results of the laboratory analyses for the C&D parameters are discussed in Section 5.4. Results from the sixteen monitoring wells sampled indicate that six Appendix I inorganic constituents (antimony in 8102-MW-10B, 8102-MW-10C, 8102-MW-and 8102-MW-11B; chromium in 8103-MW-10B, 8102-MW-10C, and 8102-MW-11B; cobalt in 8103-MW-3, 8103- MW-4, 8103-MW-6, 8103-MW-7, 8103-MW-10B, 8103-MW-10C, 8103-MW-10D, 8103-MW- 11A, 8103-MW-11B, 8103-MW-12, 8102-MW-13, 8102-MW-14, and 8103-MW-15; lead in 8102- MW-3, 8102-MW-10C, and 8102-MW-11B; thallium in 8103-MW-4, 8103-MW-6, 8102-MW-9, 8103-MW-11A, 8102-MW-12, 8102-MW-14, and 8103-MW-15; and vanadium in 8102-MW-2, 8103-MW-3, 8103-MW-4, 8103-MW-6, 8103-MW-7, 8103-MW-10B, 8103-MW-10C, 8103-MW- 11A, 8103-MW-11B, 8103-MW-12, 8103-MW-13, 8103-MW-14, and 8103-MW-15) were present in concentrations exceeding the 15A NCAC 2L Standards for Class GA Groundwater (2L) or NC Groundwater Protection (NCGP) Standards. Ten Appendix I inorganic constituents (barium, beryllium, cadmium, chromium, copper, lead, nickel, selenium, silver, and zinc) were detected in one or more of the monitoring well samples at concentrations at or above the Method Detection Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 2 Limits (MDLs), but below the 2L or NCGP Standards. The above totals include those constituents detected at or above the MDLs, but below the Solid Waste Section Limits (J values). Concentrations of five Appendix I volatile organic constituents (1,2-dichloropropane in 8103-MW- 9; 1,4-dichlorobenzene in 8103-MW-6; benzene in 8103-MW-6 and 8103-MW-10D; tetrachloroethene in 8103-MW-10D; and vinyl chloride in 8103-MW-4, 8103-MW-6, 8103-MW- 10D, 8103-MW-11A, and 8103-MW-13) exceeded the 2L or NCGP Standards on the date the samples were collected. Twelve Appendix I volatile organic constituents (1,1-dichloroethane; 1,1- dichloroethene; 1,2-dichlorobenzene; 1,4-dichlorobenzene; benzene; chlorobenzene; chloroethane; cis-1,2-dichloroethene; tetrachloroethene; total xylenes; trichloroethene; and trichlorofluoromethane) were detected in one or more of the monitoring well samples at concentrations at or above the MDLs, but below the 2L or NCGP Standards. The above totals include those constituents detected at or above the MDLs, but below the Solid Waste Section Limits (J values). No Appendix II triggered constituents exceeded the 2L or NCGP Standards on the dates the samples were collected. Three Appendix II triggered constituents (1,3-dichlorobenzene; dichlorodifluoromethane; and mercury) were detected in one or more of the monitoring well samples at concentrations at or above the MDLs, but below the 2L Standards. The above totals include those constituents detected at or above the MDLs, but below the Solid Waste Section Limits (J values). In addition to the triggered Appendix II constituents noted above, one Appendix II constituent (acenaphthene in 8103-MW-6) was detected at a concentration below the 2L Standard and below the Solid Waste Section limit. Surface water samples were collected from creeks along the northern, western, and southern perimeters of the landfill property. Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 3 No Appendix I inorganic constituents were detected in concentrations that exceeded the 15A NCAC 2B Standards for Class B/C Surface Waters (2B). Two Appendix I inorganic constituents (silver in 8103-SW-4 and zinc in 8103-SW-3 and 8103-SW-5A) were detected in concentrations that exceeded the Recommended Action Levels. One Appendix I inorganic constituent (lead) was detected in surface water samples at concentrations at or above the Method Detection Limits (MDLs), but below the 15A NCAC 2B Standards for Class B/C Surface Waters (2B). Two Appendix I inorganic constituents that do not have established standards (barium and vanadium) were detected in one or more of the surface water samples at concentrations at or above the MDLs. Two Appendix I inorganic constituents that have recommended action levels (copper and zinc) were detected in one or more surface water samples at concentrations below the action level. No volatile organic constituents were detected in any of the surface water samples. 2.0 INTRODUCTION Central Sanitary Landfill is a Solid Waste Management Facility (SWMF) located off of Business Highway 74 at the south end of Laurel Hill Drive south of Rutherfordton in Rutherford County, North Carolina. Figure 1 is a map showing the site location. Groundwater and surface water sampling locations are shown on Figure 2. Scarlett Geophysical Consulting, P.C. (SGC) was contracted by Rutherford County to conduct sampling efforts to satisfy the following groundwater monitoring requirements: • 2013 semi-annual C&D water quality monitoring • 2013 semi-annual Appendix I detection monitoring • 2013 annual Appendix II assessment monitoring • 2013 semi-annual Appendix I detection and Appendix II (triggered constituents only) assessment monitoring for five supplemental wells installed in 1998 • 2013 semi-annual MNA monitoring To complete the semi-annual C&D water quality monitoring requirement, samples from 8103-MW- 2, 8103-MW-3, 8103-MW-12, 8103-MW-13, 8103-MW-14, 8103-MW-15, 8103-SW-2, 8103-SW- Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 4 3, and 8103-SW-4 were analyzed for the Appendix I constituent list and the C&D parameters set forth in the NC Solid Waste approved monitoring plan. To complete the semi-annual Appendix I and annual Appendix II monitoring requirements, samples from 8103-MW-2 and the four surface water sampling locations were analyzed for Appendix I inorganics and volatile organics and samples from 8103-MW-4, 8103-MW-6, 8103- MW-7, 8103-MW-8, and 8103-MW-9 were analyzed for the full list of Appendix II constituents. To complete the semi-annual Appendix I and triggered Appendix II monitoring requirements for the five assessment wells installed in August 1998, samples from 8103-MW-10B, 8103-MW-10C, 8103-MW-10D, 8103-MW-11A, and 8103-MW-11B were analyzed for the full list of Appendix I constituents and triggered Appendix II constituents 1,3-dichlorobenzene; 1,3-dichloropropane; dichlorodifluoromethane; 4,4'-DDD; 4,4'-DDT; alpha-BHC; beta-BHC; delta-BHC; endrin; gamma-BHC (Lindane); and mercury. Monitoring wells 8103-MW-6, 8103-MW-7, 8103-MW-8, and 8103-MW-9 were installed in November 1994 and March 1995 after three of the Appendix I baseline sampling rounds had been completed. The March 1995 sampling event was the first in which they were included. Monitoring wells 8103-MW-10A, 8103-MW-10B, 8103-MW-10C, 8103-MW-10D, 8103-MW- 11A, and 8103-MW-11B were installed in August-September 1998 and were first included in the September 1998 sampling event. 8103-MW-10A was installed to provide deep groundwater samples, and 8103-MW-10D was installed to provide water level data. 8103-MW-10A has a very low recharge rate (less than 0.03 gallons over 24 hours); therefore, 8103-MW-10D has been designated the deep sample well. Monitoring wells 8103-MW-12 and 8103-MW-13 were installed in June 2002 and May 2001 to monitor the C&D waste disposal area of the landfill. 8103-MW-12 and 8103-MW-13 were first sampled in June 2002. Monitoring wells 8103-MW-14 and 8103-MW- 15 were installed in February 2008 to supplement the C&D area monitoring, and were first sampled in May 2008. Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 5 To complete the semi-annual MNA water quality monitoring requirement, samples from 8103- MW-2, 8103-MW-4, 8103-MW-6, 8103-MW-8, 8103-MW-9, 8103-MW-10D, and 8103-MW-11A were analyzed for the MNA parameters set forth in the NC Solid Waste Section CAP. 3.0 SCOPE OF WORK To fulfill the groundwater monitoring requirements, SGC completed the following tasks: • Sampled sixteen monitoring wells and four surface water locations at the Central Sanitary Landfill SWMF • Obtained field values for pH, temperature, and conductivity at each sample location • Obtained field values for ORP, DO, and turbidity at the MNA sample locations • Analyzed the appropriate samples for Appendix I, Appendix II, and triggered Appendix II constituents by a North Carolina certified laboratory using State approved methods • Analyzed the appropriate samples for MNA parameters • Analyzed the appropriate samples for C&D parameters • Determined groundwater flow rates and directions at the monitoring well locations • Prepared a report for the State 4.0 METHODS EMPLOYED 4.1 Monitoring Well Sampling Groundwater monitoring well sampling took place on April 28 – May 1, 2014. The monitoring well locations are shown on Figure 2. A representative from SGC opened each well and measured the static water level from the top of the PVC casing. The volume of water in the well was calculated. These data are summarized in Table 1. The wells were purged until a minimum of three well volumes was removed, the well was purged dry, or the indicator field parameters were stabilized (for the wells purged using pneumatic pumps). Following purging, groundwater samples were collected and pH, temperature, and conductivity were measured and recorded on the groundwater sampling field data sheets. Field measurements for oxidation-reduction potential Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 6 (ORP), dissolved oxygen (DO), and turbidity were obtained from the designated MNA wells. A groundwater sampling field data sheet for each well is included in Appendix A. Table 2 summarizes the results of the field data. Samples from 8103-MW-3, 8103-MW-4, 8103-MW-10D, and 8103-MW-11A were collected using the dedicated pumps installed in each well. Samples from 8103-MW-2, 8103-MW-6, 8103-MW-8, and 8103-MW-9 were collected using a properly decontaminated pneumatic pump and dedicated tubing. Samples from 8103-MW-7, 8103-MW-10B, 8103-MW-10C, 8103-MW-11B, 8103-MW- 12, 8103-MW-13, 8103-MW-14, and 8103-MW-15 were collected using properly decontaminated teflon bailers. Immediately upon collection, each sample was placed in laboratory supplied sample containers, packed on ice, and placed under chain-of-custody. The sampling technician wore new latex gloves and used separate bailers at each of the bailed wells to minimize the possibility of cross contamination. Additionally, new bailer cord was used for each purging/sampling event where a pneumatic pump was not available. The surface water samples were collected by immersing laboratory supplied containers in the water to be sampled. After collection, each sample was packed on ice and placed under chain-of-custody. All samples were submitted to Research & Analytical Laboratories, Inc. (R&A), a North Carolina certified laboratory, for analysis. 4.2 Stream Sampling Surface water sampling took place on April 30 and May 1, 2014. Sample 8103-SW-2 was collected from a tributary of Cleghorn Creek immediately upstream from the confluence. This stream flows to the southwest along the northwest boundary and south along the west boundary of the landfill property. Sample 8103-SW-3 was collected from Stonecutter Creek, a stream that flows to the southwest along the southeastern toe of the landfill. Sample 8103-SW-4 was collected from the same stream as 8103-SW-2 approximately 2,500 feet upstream on the northern boundary of the landfill property. The original 8103-SW-5 sampling location is an intermittent stream downgradient from the C&D landfill. This feature drains into the Cleghorn Creek tributary upstream from the 8103-SW-2 sampling location. This location is usually dry and rarely available for sampling; therefore, the sampling location has been moved to the Cleghorn Creek tributary 50 Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 7 feet upstream from the intersection with the drainage feature. Comparison of the data collected at the new location with the 8103-SW-2 data should reveal whether or not conditions upgradient from the drainage feature are impacting surface water quality. The new location is designated 8103-SW- 5A and is shown on Figure 2. Immediately upon collection, pH, temperature, and conductivity were measured and recorded on the surface water sampling field data sheets. A surface water sampling field data sheet for each location is included in Appendix A and the field data are summarized in Table 2. All stream samples were analyzed for the same Appendix I and C&D parameters as the groundwater samples. The stream sample locations are shown on Figure 2. 4.3 MNA Sampling The October 2007 event was the first to include a comprehensive set of baseline MNA parameters. The April-May 2014 event is the fourteenth consecutive semi-annual sampling event for evaluating the effectiveness of MNA as a groundwater protection strategy. The MNA performance wells are 8103-MW-2, 8103-MW-4, 8103-MW-6, 8103-MW-8, 8103-MW-9, 8103- MW-10D, and 8103-MW-11A. A Corrective Action Evaluation Report (CAER) discussing the first thirteen MNA sampling events was submitted on April 1, 2014. 8103-MW-4, 8103-MW-10D, and 8103-MW-11A have dedicated bladder pumps, and were purged and sampled in general accordance with the EPA guidelines for low-flow groundwater sampling. Low-flow sampling was accomplished in 8103-MW-2, 8103-MW-6, and 8103-MW-9 using a properly decontaminated portable pneumatic pump and dedicated tubing. 5.0 RESULTS 5.1 Groundwater 5.1.1 Analytical Results Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 8 The results of the laboratory analyses for Appendix I constituents in the groundwater monitoring wells are summarized in Tables 3 and 4. Table 5 summarizes the results of the laboratory analyses for triggered Appendix II constituents. Tables 6 through 10 summarize the results of the laboratory analyses for all Appendix II constituents in 8103-MW-4, 8103-MW-6, 8103-MW-7, 8103-MW-8, and 8103-MW-9, including the subset of Appendix I inorganics and volatile organics presented in Tables 3 and 4 and triggered Appendix II constituents presented in Table 5. Table 11 summarizes the results of the laboratory analyses for MNA parameters 8103-MW-2, 8103-MW-4, 8103-MW-6, 8103-MW-8, 8103-MW-9, 8103-MW-10D, and 8103-MW-11A. Table 12 summarizes the results for the additional C&D parameters required by the current C&D monitoring plan. Complete laboratory reports for all Appendix I, Appendix II, MNA, and C&D analytical testing are included in Appendix B. The groundwater sample analyses revealed that eleven Appendix I constituents had concentrations above 2L or NCGP Standards in one or more of the wells. A summary of these analytical results is provided below. • Antimony was detected in 8103-MW-10B at 1.3 ppb, 8103-MW-10C at 3.5 ppb, 8103-MW- 11B at 1.5 ppb. The 2L Standard is 1.0 ppb. All results below 6.0 are estimated (J) values. • Chromium was detected in 8103-MW-10B at 31.8 ppb, 8103-MW-10C at 54.6 ppb, and 8103-MW- 11B at 37.3ppb. The 2L Standard is 10.0 ppb. • Cobalt was detected in 8103-MW-3 at 1.6 ppb, 8103-MW-4 at 3.5 ppb, 8103-MW-6 at 42.0 ppb, 8103-MW-7 at 3.1 ppb, 8103-MW-10B at 17.2 ppb, 8103-MW-10C at 32.6 ppb, 8103- MW-10D at 33.2 ppb, 8103-MW-11A at 24.9 ppb, 8103-MW-11B at 18.5 ppb, 8103-MW- 12 at 7.2 ppb, 8103-MW-13 at 4.6 ppb, 8103-MW-14 at 5.0 ppb, 8103-MW-15 at 2.2 ppb. The NCGP Standard is 1.0 ppb. All results below 10.0 ppb are estimated (J) values. • Lead was detected in 8103-MW-3 at 55.0 ppb, 8103-MW-10C at 22.4 ppb, and 8103-MW- 11B at 18.5 ppb. The 2L Standard is 15.0 ppb. Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 9 • Thallium was detected in 8103-MW-4 at 3.2 ppb, 8103-MW-6 at 13.5 ppb, 8103-MW-9 at 2.9 ppb, 8103-MW-11A at 7.2 ppb, 8103-MW-12 at 3.8 ppb, 8103-MW-14 at 3.0 ppb, and 8103-MW-15 at 3.6 ppb. The NCGP Standard is 0.28 ppb. All results below 5.5 ppb are estimated (J) values. • Vanadium was detected in 8103-MW-2 at 0.6 ppb, 8103-MW-3 at 1.7 ppb, 8103-MW-4 at 9.2 ppb, 8103-MW-6 at 1.9 ppb, 8103-MW-7 at 7.1 ppb, 8103-MW-10B at 55.7 ppb, 8103- MW-10C at 98.5 ppb, 8103-MW-11A at 9.2 ppb, 8103-MW-11B at 70.8 ppb, 8103-MW-12 at 3.8 ppb, 8103-MW-13 at 2.1 ppb, 8103-MW-14 at 20.9 ppb, and 8103-MW-15 at 8.2 ppb. The NCGP Standard is 0.3 ppb. • 1,2-Dichloropropane was detected in 8103-MW-9 at 7.9 ppb. The 2L Standard is 0.6 ppb. • 1,4-Dichlorobenzene was detected in 8103-MW-6 at 10.6 ppb and 8103-MW-11A at 6.1 ppb. The 2L Standard is 6.0 ppb. • Benzene was detected in 8103-MW-6 at 1.2 ppb and 8103-MW-10D at 2.1 ppb. The 2L Standard is 1.0 ppb. • Tetrachloroethene was detected in 8103-MW-10D at 2.4 ppb. The 2L Standard is 0.7 ppb. All results below 1.0 ppb are estimated (J) values. • Vinyl Chloride was detected in 8103-MW-4 at 0.5 ppb, 8103-MW-6 at 2.3 ppb, 8103-MW- 10D at 0.5 ppb, 8103-MW-11A at 0.8 ppb, and 8103-MW-13 at 0.3 ppb. The 2L Standard is 0.03 ppb. All results below 1.0 ppb are estimated (J) values. The following twenty-two Appendix I constituents were detected in one or more of the wells in concentrations above the MDLs and below established 2L or NCGP Standards. Values that are above the MDLs and below the SWSLs (estimated “J” values) are included. Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 10 • Barium was detected in all monitoring wells. • Beryllium was detected in 8103-MW-10B, 8103-MW-10C, and 8103-MW-11B. • Cadmium was detected in 8103-MW-7. • Chromium was detected in 8103-MW-4, 8103-MW-6, 8103-MW-7, 8103-MW-8, 8103- MW-9, 8103-MW-11A, 8103-MW-12, 8103-MW-13, 8103-MW-14, and 8103-MW-15. • Copper was detected in all monitoring wells. • Lead was detected in 8103-MW-2, 8103-MW-4, 8103-MW-6, 8103-MW-7, 8103-MW-9, 8103-MW-10B, 8103-MW-11A, 8103-MW-12, 8103-MW-13, 8103-MW-14, and 8103- MW-15. • Nickel was detected in 8103-MW-3, 8103-MW-4, 8103-MW-6, 8103-MW-7, 8103-MW-9, 8103-MW-10B, 8103-MW-10C, 8103-MW-10D, 8103-MW-11A, 8103-MW-11B, 8103- MW-12, 8103-MW-13, 8103-MW-14, and 8103-MW-15. • Selenium was detected in 8103-MW-6. • Silver was detected in 8103-MW-2, 8103-MW-4, 8103-MW-6, 8103-MW-9, 8103-MW- 10B, 8103-MW-10D, 8103-MW-11A, 8103-MW-11B, 8103-MW-12, 8103-MW-13, 8103- MW-14, and 8103-MW-15. • Zinc was detected in all monitoring wells. • 1,1-Dichloroethane was detected in 8103-MW-7, 8103-MW-10B, and MW-10D. • 1,1-Dichloroethene was detected in 8103-MW-10D. Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 11 • 1,2-Dichlorobenzene was detected in 8103-MW-6, 8103-MW-10D, and 8103-MW-11A. • 1,4-Dichlorobenzene was detected in 8103-MW-4, 8103-MW-7, 8103-MW-10D, 8103- MW-11B, and 8103-MW-12. • Benzene was detected in 8103-MW-4, 8103-MW-7, 8103-MW-11A, 8103-MW-12, and 8103-MW-13. • Chlorobenzene was detected in 8103-MW-4, 8103-MW-6, 8103-MW-7, 8103-MW-10D, 8103-MW-11A, 8103-MW-11B, 8103-MW-12, and 8103-MW-13. • Chloroethane was detected in 8103-MW-4, 8103-MW-6, 8103-MW-7, 8103-MW-10D, 8103-MW-11A, 8103-MW-13, and 8103-MW-14. • Cis-1,2-Dichloroethene was detected in 8103-MW-4, 8103-MW-6, 8103-MW-7, 8103-MW- 10B, 8103-MW-10D, 8103-MW-11A, and 8103-MW-13. • Tetrachloroethene was detected in 8103-MW-9 and 8103-MW-10B. • Total Xylenes were detected in 8103-MW-13. • Trichloroethene was detected in 8103-MW-10B and 8103-MW-10D. • Trichlorofluoromethane was detected in 8103-MW-14 and 8103-MW-15. The groundwater sample analyses did not reveal any Appendix II triggered constituents at concentrations above the 2L or NCGP Standards. Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 12 The following four Appendix II triggered constituents were detected in one or more of the wells in concentrations above the MDLs and below established 2L Standards. Values that are above the MDLs and below the SWSLs (estimated “J” values) are included. • 1,3-Dichlorobenzene was detected in 8103-MW-4, 8103-MW-6, and 8103-MW-11A. • Dichlorodifluoromethane was detected in 8103-MW-7 and 8103-MW-10D. • Mercury was detected in 8103-MW-4, 8103-MW-6, 8103-MW-7, 8103-MW-8, 8103-MW- 9, 8103-MW-10B, 8103-MW-10C, 8103-MW-10D, 8103-MW-11A, and 8103-MW-11B. The following Appendix II constituent that are not included in the triggered Appendix II data set was detected in one or more of the wells at a concentration above the MDLs and below established 2L Standards. It was detected at a very low concentration below the SWSLs (estimated “J” values); therefore, it will be monitored annually and not added to the triggered Appendix II list at this time. • Acenaphthene was detected in 8103-MW-6. The results of the laboratory analyses for MNA parameters are presented in Table 11 and discussed in Section 5.3. The results of the laboratory analyses for C&D parameters are presented in Table 12 and discussed in Section 5.4. Table 13 summarizes the sampling history for the wells in the groundwater monitoring plan and includes the C&D and MNA wells. 5.1.2 Hydraulic Conductivity Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 13 In-situ hydraulic conductivity tests were performed on wells 8103-MW-2, 8103-MW-4, 8103-MW- 6, 8103-MW-7, 8103-MW-8 and 8103-MW-9 on March 20, 1995. These tests resulted in hydraulic conductivity values ranging from 2.9 x 10-6 to 1.6 x 10-4 cm/sec. These data are included in Table 14 and were used to calculate groundwater flow velocities across the site. A complete discussion of the test methods and calculations is presented in BPA Environmental & Engineering’s July 7, 1995, report "Monitoring Well System Upgrade, Central Sanitary Landfill, Rutherford County, North Carolina." 5.1.3 Groundwater Flow Direction and Rate The static levels in the monitoring wells were measured April 28-May 1, 2014. The water table elevations ranged from 806.70 to 958.39 feet MSL on these dates. Groundwater and well casing elevation data are included in Table 1. A groundwater contour map was constructed and is presented as Figure 2. Based on field data, groundwater appears to be flowing in a radial pattern from the fill area towards the east, south, and west. Groundwater flow lines were drawn through each well as shown on Figure 2. The groundwater gradient at each well was calculated assuming a constant groundwater gradient along the flow line between adjacent groundwater elevation contours, between two monitoring wells along the same flow path, or between a well and the nearest stream. Based on a variation of Darcy's Law, the rate of groundwater movement within the regolith aquifer was calculated at each monitoring well using the following equation: V = Ki n where V = velocity (ft/day) K = hydraulic conductivity (ft/day) i = groundwater gradient (ft/ft) n = porosity (dimensionless) Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 14 Calculated hydraulic conductivity and gradient values and estimated effective porosity values for each well were used in the velocity calculations. The 20 percent effective porosity value is based on porosity and specific yield versus grain size distribution relationships presented in Fetter (1988) and is typical for the type of soil (sandy silt with some clays) comprising the regolith at the landfill. The calculated groundwater velocities ranged from 0.84 to 31.60 ft/yr (average = 10.06 ft/yr) and are included in Table 14. 5.2 Surface Water No Appendix I volatile organic constituents were detected above the MDLs in any of the surface water samples. No Appendix I inorganic constituents were detected in concentrations at or above the 2B Standards in any of the four surface water samples collected on April 30 and May 1, 2014. Two constituents (listed below) were detected at concentrations above the Recommended Action Level. • Silver was detected in 8103-SW-4 at 2.9 ppb. The Recommended Action Level is 0.06 ppb. The result is an estimated (J) value. • Zinc was detected in 8103-SW-3 at 73.3 ppb and 8103-SW-5A at 51.6 ppb. The Recommended Action Level is 50.0 ppb. Three Appendix I inorganic constituents with established standards (listed below) were detected in one or more of the surface water samples at concentrations above the MDL and below the 2B Standards or Action Levels. Values that are above the MDLs and below the SWSLs (estimated “J” values) are included. • Copper was detected in 8103-SW-4 and 8103-SW-5A. • Lead was detected in 8103-SW-4 and 8103-SW-5A. Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 15 • Zinc was detected in 8103-SW-2 and 8103-SW-4. The following two Appendix I inorganic constituents were detected in one or more of the surface water samples in concentrations above the MDL. No 2B Standards have been established for these constituents. Values that are above the MDLs and below the SWSLs (estimated “J” values) are included. • Barium was detected in 8103-SW-2, 8103-SW-3, 8103-SW-4, and 8103-SW-5A. • Vanadium was detected in 8103-SW-2, 8103-SW-4, and 8103-SW-5A. The results of the laboratory analyses for C&D surface water parameters are presented in Table 12 and discussed in Section 5.4. The results of the laboratory analyses for Appendix I constituents in the surface water samples are summarized in Tables 15 and 16, and the complete laboratory reports are included in Appendix B. 5.3 Monitored Natural Attenuation This is the fourteenth consecutive semi-annual sampling event that included MNA parameters, providing a sufficient set of baseline data for constructive evaluation of MNA processes. The results are encouraging. The presence and ratios of reductive dehalogenation chlorinated ethenes and other MNA parameter concentrations in the wells that are in the primary plume migration routes (8103-MW-4, 8103-MW-6, and 8103-MW-11A to the west and 8103-MW-10D to the east) are consistent with the impacts expected from biodegradation processes at work in a mixed contaminant plume. A Corrective Action Evaluation Report (CAER) discussing the first thirteen MNA sampling events was submitted on April 1, 2014. Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 16 One MNA parameter (shown below) was detected at a concentration above the 2L Standard. The results of the MNA field parameter measurements are included in Table 2, and the complete results of the MNA laboratory parameter analyses are presented in Table 11. • Iron was detected in 8103-MW-2 at 303.0 ppb, 8103-MW-4 at 4,520.0 ppb, 8103-MW-6 at 10,700.0 ppb, 8103-MW-8 at 310.0 ppb, 8103-MW-10D at 364.0 ppb, and 8103-MW-11A at 8,800.0 ppb. The 2L Standard is 300.0 ppb. 5.4 C & D Monitoring The groundwater sample analyses revealed that three C&D parameters (listed below) exceeded established groundwater water protection standards. • Aluminum was detected in 8103-MW-14 at 9,110.0 ppb and 8103-MW-15 at 5,430.0 ppb. The 2L Standard is 3,500.0 ppb. • Iron was detected in 8103-MW-2 303.0 ppb, 8103-MW-3 at 1,250.0 ppb, 8103-MW-12 at 1,900.0 ppb, 8103-MW-13 at 2,740.0 ppb, 8103-MW-14 at 8,000.0 ppb, and 8103-MW-15 at 4,040.0 ppb. The 2L Standard is 300.0 ppb. • Manganese was detected in 8103-MW-3 at 248.0 ppb, 8103-MW-12 at 3,620.0 ppb, 8103- MW-13 at 881.0 ppb, 8103-MW-14 at 247.0 ppb, and 8103-MW-15 at 84.4 ppb. The 2L Standard is 50.0 ppb. • TDS concentration in 8103-MW-3 was 509,000 ppb. The 2L Standard is 500,000.0 ppb. The C&D surface water analyses indicated that one constituent concentration exceeded the 2B Standard for Class B,C Surface Waters. This result is shown below. A complete summary of the C&D laboratory data is provided in Table 12. Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 17 • Mercury was detected in 8103-SW-2 at 0.05 ppb, 8103-SW-3 at 0.06 ppb, 8103-SW-4 at 0.05 ppb, and 8103-SW-5A at 0.05 ppb. The 2B Standard is 0.012 ppb. 5.5 Notifications All groundwater constituent concentrations that exceeded the 2L or NCGP standards are listed in Section 5.1.1, Section 5.3, and Section 5.4, and indicated by shaded cells and bold typeface in Tables 3 through 12. Surface water constituent concentrations that exceeded the 2B standards are listed in Section 5.5 and indicated by shaded cells and bold typeface in Tables 12, 15, and 16. A summary of groundwater notifications is provided in Table 17 and surface water notifications in Table 18. Groundwater and surface water concentrations that exceeded the reporting limits, but were below the 2L or NCGP standards are listed in Sections 5.1.1 and 5.2 and in Tables 3 through 12, 15, and 16. The volatile organic constituents present in the groundwater samples are likely due to past waste disposal activities; however, contributions by ongoing borrow, maintenance, and transfer station activities cannot be ruled out. Continued operation of the C&D facility adjacent to the old disposal area is also a potential contributor. There is no evidence indicating that volatile organic constituents resulting from waste disposal at Central Landfill currently exceed the 2L or NCGP Standards at locations beyond the facility boundary. The inorganic constituents present in the groundwater samples have been influenced by past waste disposal, but it is likely that local geology has an impact. The upgradient well, 8103-MW-2, shows no volatile organic impacts but over time has shown a number of inorganic concentrations similar to those in downgradient wells. 5.6 Quality Assurance Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 18 A duplicate sample was collected from 8103-MW-3 and submitted for analysis as "Duplicate." This sample was analyzed for Appendix I volatile organic constituents. The duplicate Appendix I volatile organic results are in agreement with the 8103-MW-3 results. The results of the duplicate sample analyses are included in Appendix B. Trip blank samples accompanied the sample bottles from the time they left the laboratory until their return. The laboratory did not report the presence of any Appendix I constituents above the detection in the trip blank sample. Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 19 6.0 REFERENCES BPA Environmental & Engineering, Inc., Monitoring Well System Upgrade, Central Sanitary Landfill, Rutherford County, N.C., July 7, 1995. Fetter, C.W., 1988, Applied Hydrogeology, New York, New York; Macmillan Publishing Company, 1988, 592 pp. North Carolina Administrative Code, Title 15A, Department of Environment, Health and Natural Resources, Division of Environmental Management, Subchapter 2L, Classifications and Water Quality Standards Applicable to the Groundwaters of North Carolina, Sections .0100, .0200, and .0300 (Downloaded from NCSW Web Site, June 11, 2012); from the Environmental Management Commission, Raleigh, North Carolina. North Carolina Administrative Code, Title 15A, Department of Environment, Health and Natural Resources, Division of Environmental Management, Subchapter 2B, Classifications and Water Quality Standards Applicable to the Surface Waters of North Carolina, Section .0200, May 1, 2007; from the Environmental Management Commission, Raleigh, North Carolina. Composite 15A NCAC Subchapter 2B and EPA National Criteria for Freshwater Aquatic Life, current as of February 5, 2010. North Carolina Administrative Code, Title 15A, Department of Environment, Health and Natural Resources, Division of Solid Waste Management, Subchapter 13B, Solid Waste Management, Section .1600 (August 27, 2001). North Carolina Administrative Code, Title 15A, Department of Environment, Health and Natural Resources, Division of Solid Waste Management, Subchapter 13B, Solid Waste Management, recently added/updated rules .1604, .1626, .1632, .1633, .1634, .1635, and .1637 (effective April/May 2011) Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 20 North Carolina Water Quality Monitoring Guidance Document for Solid Waste Facilities, Department of Environment, Health and Natural Resources, Division of Solid Waste Management, Solid Waste Section, (January 2000), Download from NCSW Web Site. North Carolina Solid Waste Section Memorandum Regarding New Guidelines for Electronic Submittal of Environmental Data, October 27, 2006. Addendum to October 27, 2006, North Carolina Solid Waste Section Memorandum Regarding New Guidelines for Electronic Submittal of Environmental Data, February 23, 2007. Rutherford County Central Sanitary Landfill June 27, 2014 Rutherford County, NC Page 21