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e <br /> HISTORICAL SUMMARY OF MONITORING RESULTS <br /> GROUNDWATER <br /> HARNEY LANE SANITARY LANDFILL <br /> MW-2 <br /> Units:mg/l,unless noted - <br /> Sample Designation MW-2 MW-2 MW-2 MW-2 MW-2 MW-2 MW-2 MW-2 MW-2 MW-2 MW-2 <br /> Sampling Date 10/11/00 2/1/01 4/17/01 7/30/01 10/11/01 1/22/02 4/18/02 7/17/02 10/2/02 1/13/03 4/28/03 <br /> Monitoring and Field Parameters <br /> General Water Quality Parameters <br /> Electrical Conductivityumhos/cm) 301 293 260 280 190 320_ 210 _320_ 320 - 246 _271 _ <br /> -- - --- �---- --- -- <br /> pH(units) 7.12 7.45 7 00 7 19 6 3 6 81 6 59 7.1 8.81 7.31 7.89 <br /> Turbidity(NTU) 0.14 154 6.90 1.48 1.8 5.3 2.7 4.1 5.7 10.30 1.51 <br /> Temperature(°C) 20.0 20.3 20.9 26.2 20.1 16.8 18.8 20.6 20.5 17.3 19.4 <br /> Total Dissolved Solids 199 156 214 220 210 200 190 200 300 200 210 <br /> ---Chloride 17.9 17.8 17.2 18 20 20 22 20 21 20 21 <br /> Sulfate 4.66 NR NR NR 4.9 NR NR NR 4 NR NR <br /> Nitrate-Nitrogen 171 NR NR NR 1.6 NR NR NR 1.9 NR NR <br /> Volatile Organic Compounds(ugA <br /> Acetone• <0.52 <br /> Carbon Tetrachloride <0.17 <0.95 <0.95 <0.95 <0.17 <0.95 <0.17 <0.17 <0.37 <0.37 <0.31 <br /> Chlorobenzene <0.20 <0.62 <0.62 <0.62 <0.20 <0.62 <0.20 <0.20 0.35* <0.32 <0.26 <br /> 1,2-Dichlorobenzene <0.22 <1.2 <0.24 <1.2 <0.24 <0.24 <0.31 <0.31 <0.32 <br /> 1,4-Dichlorobenzene <0.24 <1.1 <1.1 <1.1 <0.24 <1.1 <0.24 <0.24 <0.46 <0.46 <0.27 <br /> Dichlorodifluoromethane <0.76 <0.76 <0.76 1 <0.76 3.6* <0.76 <0.76 0.46* <0.31 <0.31 <br /> 1 2-Dichloropropane <0.22 <0.74 <0.74 <0.74 <0.22 <0.74 <0.22 <0.22 <0.32 <0.32 <0.078 <br /> Methylene Chloride <011 <1.9 7.7* <1.9 0.42* <1.9 <0.1 1 <0.11 <0.23 <0.23 <2.1 <br /> Tetrachioroethene 0.301* <0.57 <0.57 <0.57 0.40* <0.057 <0.20 <0.20 0.46* 0.45* 0.48* <br /> Toluene 0.18* <0.70 <0.18 <0.18 0.37* <0.32 <0.21 <br /> Trichlorofluoromethane <0.15 <0.54 <0.54 <0.54 <0.15 <0.54 <0.15 <0.15 <0.42 <0.42 <0.36 <br /> Xylenes(Total) 3.3 <0.33 0.99* <0.33 <0.33 <0.48 <0.48 <0.48 <br /> Only organic compounds detected in one or more samples are listed. <br /> (1)This analytical result appears to be anomalous and therefore was not used in the statistical evaluation procedures. <br /> (1)Parameter also detected in one or more quality control blanks <br /> *=Trace Concentration <br /> NR=Not Requested --- <br /> MW-T.Printed-8/8/03 7 of 8 <br />