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Table 2.2 Corrective Action Monitoring Results Summary Austin Road Landfill AMW-1 AMW-4 AMW-5R AMW-10 AMW-11 AMW-18 AMW-19 AMW-19BR Analyte Units MDL 2/24/12' 2/24/12 2/24/12 2/22/12 2/22/12 2/22/12 2/22/12 2/22/12 Field Parameters pH pH units - 6.49 7.27 7.09 6.98 7.34 7.30 7.40 7.40 Specific Conductance µmhos/cm - 1396 885 1267 553 945 919 703 731 Temperature °C - 20.8 21.0 18.4 18.3 17.7 17.4 17.7 16.9 Turbidity NTU - 8 13 >1000 6 3 6 4 2 Monitoring Parameters Arsenic mg/L - 0.01 0.0054 0.0035 0.0034 0.0056 0.0054 0.0045 0.0047 Barium mg/L - 0.41 0.31 0.27 0.2 0.18 0.13 0.18 0.22 Bicarbonate mg/L - 780 490 440 290 450 370 280 340 Calcium mg/L - 130 71 110 45 73 78 53 63 Carbonate mg/L - <5.0 <2.5 <5.0 <2.5 <2.5 <2.5 <2.5 <2.5 Chloride mg/L - 60 33 110 5.8 50 40 76 56 Chromium,Hexavalent mg/L - <0.0020 <0.0020 0.0046 <0.0020 0.00084J 0.0033 <0.0020 0.000991 Magnesium mg/L - 65 31 49 21 38 42 28 33 Nitrate as N mg/L - 0.0977 <0.10 24 0.14 5.4 16 1.5 1.6 Oil and Grease mg/L - <5.0 <5.8 <5.8 <5.6 <5.7 <5.0 <5.0 <5.7 Potassium mg/L - 5.4 4.5 7.3 4.3 5.3 6.8 6.1 7.2 Sodium mg/L - 51 65 64 36 67 42 43 33 Strontium m L - 1.4 0.71 1.2 0.54 0.92 0.95 0.64 0.76 Sulfate m L - 21 36 67 47 46 67 21 21 Total Dissolved Solids mg/L - 870 590 840 370 610 620 460 510 Volatile Petroleum Hydrocarbons ug/L - 217 <50 <50 <50 <50 <50 <50 <50 Volatile Organic Compounds 1,1-Dichloroethane u L 0.11 2.2 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 0.29J 1,2-Dichlorobenzene u L 0.072 0.477 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 1,2-Dichioroethane u L 0.17 0.24J <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 1,2-Dichloro ropane u L 0.13 0.191 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 1,3-Dichlorobenzene u L 0.15 0.191 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 1,4-Dichlorobenzene ug/L 0.062 3.2 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 Benzene dug 0.083 0.87 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 Chlorobenzene 0.093 2.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 Chloroethane O.14 0.231 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 cis-1,2-Dichlroethene 0.085 4.3 <0.50 <0.50 0.22J <0.50 <0.50 <0.50 0.46J Dichlorodifluoromethane 0.099 0.13J <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 0.67 Diiso ro yl Ether 0.23 0.42J <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 Tetmchloroethene 0.13 6.9 0.34J <0.50 0.41J <0.50 <0.50 0.49J 3.4 trans-l,2-Dichloroethene 0.15 0.25.1 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.5Trichloroethene 0.085 3.2 0.36J <0.50 0.51 <0.50 <0.50 0.28.1 1.9 Vinyl Chloride ug/L 0.12 0.71 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 f Denotes the sampling date. J Denotes detections above the method detection limit but below the laboratory reporting limit.