ARCHIVED REPORTS_2010_13 - Laserfiche WebLink

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Table 2.2 Detection Monitoring Results and Compliance Summary Austin Road Landfill AMW-2 AMW-6 AMW-7 AMW-12 AMW-13 AMW-14 Analyte Units Concentration Limit MDL 3/30/10° 3/30/10 3/30/10 3/29/10 3/30/10 3/30/10 Field Parameters H pH units 6.71-8.35 - 7.55 7.82 7.86 7.71 7.60 7.63 Specific Conductance µmhos/cm 1464 - 1450 577 740 843 1185 1195 Temperature "C 21.32 - 17.4 16.7 18.4 17.6 17.9 17.7 Turbidity NTU 97 - 1.0 0.5 4 0.50 2.0 3.4 Monitoring Parameters Arsenic m L 0.007356 - 0.0036 0.0054 0.0050 0.0044 0.0042 0.0039 Barium m L 0.22 - 0.13 0.14 0.19 0.17 0.26* 0.26* Bicarbonate m L 493.7 - 390 160 210 270 390 310 Calcium m /L 139.5 - 110 39 51 58 85 85 Carbonate m L 12 - <5.0 <2.5 <2.5 <2.5 <2.5 <2.5 Chloride m L 78 - 55 36 38 37 41 77 Chromium,Hexavalent rn L 0.005 - 0.0024 0.0044 0.0046 0.0014 0.0031 0.0026 Magnesium m L 63.27 - 50 18 24 28 44 42 Nitrate as N m L 125 - 27 2.8 6.0 6.5 12 12 Oil and Grease m L 2.5 - <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 Potassium m L 10.83 - 9.3 6.3 7.7 3.8 6.7 5.6 Sodium m L 78.2 - 65 24 28 42 46 47 Strontium m L 1.4 - 1.1 0.43 0.59 0.63 0.95 0.95 Sulfate m L 150.7 - 80 23 25 36 59 66 Total Dissolved Solids m L 1024 - 750 310 380 430 590 580 Volatile Petroleum Hydrocarbons ug/L 25 - <50 <50 <50 <50 <50 <50 Volatile Organic Compounds 1,1-Dichloroethane ug/L Detect 0.081 <0.50 <0.50 <0.50 <0.50 0.21J <0.50 1,2-Dichloro ro ane ug/L Detect 0.12 <0.50 <0.50 <0.50 <0.50 <0.50 0.22J cis-1,2-Dichloroethene ug/L Detect 0.11 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 Dichlorodifluoromethane ug/L Detect 0.11 <0.50 <0.50 <0.50 <0.50 0.31.1 0.39J Tetrachloroethene ug/L Detect 0.13 <0.50 035J <0.50 0.191 4.9* 4.6* Trichloroethene ug/L Detect 0.13 <0.50 <0.50 <0.50 <0.50 1.1* 0.34J Trichlorofluoromethane ug/L Detect 0.11 <0.50 <0.50 <0.50 <0.50 0.20J <0.50 t Denotes the sampling date. J Denotes detections above the method detection limit but at or below the reporting limit. *Denotes a downgradient value exceeding the concentration limit.