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TABLE 1 <br /> GROUNDWATER ELEVATION DATA AND ANALYTICAL SUMMARY <br /> FORMER APACHE PLASTICS FACILITY <br /> - 2050 EAST FREMONT STREET <br /> J STOCKTON, CALIFORNIA <br /> � - Depth to Well Groundwater Ethyl- Total <br /> Date Water Elevation Elevation TPHG Benzene Toluene benzene Xylenes MTBE <br /> I�- WELL # Sampled (ft. bgs) (ft. msl) (ft. msl) (mg/L) (µg/L) (µg/L) (99/L) (491L) (119/4) <br /> MW-8 L 5/18/01 42. 97 17.89 -25 .08 26 33200 21200 870 1 ,890 <10* <br /> -- 11/5/01 48. 13 -30.24 58 6,800 61000 1 ,700 62500 <25 * <br /> 2114/02 46.49 -28.60 2.2 800 23 99 7.9 <2.5 * <br /> _J 5/20/02 46. 60 -28.71 LI 160 6.2 24 8.6 02 .0* <br /> - MW-9 L 5/18/01 43 .28 18.27 -25.01 210 202000 44,000 33100 17,500 <200* <br /> 11/5101 . 48.42 -30. 15 210 22,000 472000 3;200 18,900 <250* <br /> 2/14/02 46.78 -28.51 160 21 ,000 . 52,000 2,000 14,500 <250'* <br /> I 5/20/02 46.88 -28.61 160 20,000 353000 2,700 17,900 <250* <br /> MW40 L . 5118/01 43.40 18.40 -25.00 <0.050 0.90 <0.5 <0.5 <0.5 <050 - <br /> 11 /5/01 48.70 -30.30 0. 15 Al 35 2.3 14.9 <0.50 <br /> 2/14/02 4855 -30. 15 <0.050 <0.50 1 .2 <0.50 1 . 1 <0.50 <br /> 5/20/02 50.31 -31 .91 <0.050 <0-50 '<0.50 <0.50 <0.50 <0.50 _ <br /> MW-11 L 5/18/01 42.67 17.69 -24.98 <0.050 <0.50 <050 <0.50 <0.50 <0.50 <br /> 1115101 46.65 -28.96 <0.050 <0.50 - <0.50 <0.50 <0.50 <0.50 <br /> 2/14/02 46.29 -28.60 <0.050 <0.50 <050 - <0.50 <0.50 <0.50 <br /> �J <br /> 5/20/02 46.81 -29. 12 <0.050 <0.50 <0.50 <0.50 <0.50 <0.50 <br /> MW-12 L 5118101 50.38 17.67 -32.71 <0.050 <0.50 -1 .7 <0.5 1. 81 <0.50 <br /> 11/5/01 47.95 -30.28 NA - NA NA NA NA NA <br /> 2/14/02 46.78 -29. 11 <0.050 <0.50 1 .7 - <0.50 <0.50 <0S0 <br /> 5120/02 55.80 -38 . 13 <0.050 <0.50 0.58 <0.50 <0.50 <050 <br /> * = Reporting limits were increased due to high concentrations of target analytes <br /> - * = Well MW-3 is obstructed at approximately 23 feet bus <br /> * = Well was previously identified as MW-l . All groundwater samples have been collected from well VEW-2 <br /> = Reporting limits increased due to sample foaming <br /> TPHG = Total petroleum hydrocarbons as gasoline <br /> MTBE = Methyl tertiary butyl ether <br /> U = Screened in upper water bearing zone <br /> -- L = Screened in lower water Bearing zone <br /> NA = Not Analyzed <br /> NM = Well casing elevation has not been surveyed <br /> Apache Quarterly_Data.xls Page ? oft STRATUS <br />