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i TaAnd <br /> i <br /> Groundwater Monitoring AnalyticaE Results <br /> Chevron Service Station#9-0557 <br /> 139 South Center Street <br /> Vertical Measurements are in feet. Stockton,California Analytical results are in parts per billion (ppb) <br /> Well Ground Depth <br /> DATE Head Water To Notes TPH- Benzene Toluene Ethyl- Xylenes MTBE Fecal <br /> Elev. Elev. Water Gasoline Benzene Coliform' <br /> MW-5(cont) <br /> I <br /> 11/10/98 12.14 -11.64 23.78 -- <50 <0.5 <0.5 <0.5 <0.5 Q.5 <br /> 02/17/99 12.14 -9.70 21.84 -- 140 5.3 <0.5 <0.5 1.8 <2.5 <br /> 05/18/99 12.14 -9.86 22.00 - 510 3.4 <0.5 0.62 2.3 5.80 <br /> 08/30/99 12.14 -11.06 23.20 <50 <0.5 1.89 <0.5 <0.5 <5.0 <br /> 12/02/99 12.14 -11.63 23.77 -- <50 <0.5 <0.5 <0.5 <0.5 <5.0 <br /> 02/02/00 12.14 -11.44 23.58 -- 101 <0.5 <0.5 <0.5 <0.5 <2.5 <br /> 05/17/00 12.14 -9.38 21.52 -- 2732 <0.500 <0.500 <0.500 <0.500 <2.50 -- <br /> MW-6 <br /> 11/22/93 -- -- 43.08 - 980 9.0 8.0 ND 6.0 <br /> 02/09/94 11.76 -31.05 42.81 - 1300 7.0 9.0 0.8 6.0 -- <br /> 05/27/94 11.76 -30.10 41.86 1100 23 2.0 1.1 4.1 <br /> 08/05/94 11.76 -30.36 42.12 790 ND 1.6 0.7 3.1 <br /> 11/22/94 11.76 -31.36 43.12 -- 690 1.3 5.5 0.7 4.0 <br /> 02/24/95 11.76 -27.49 39.25 -- 2300 130 7.3 5.9 16 <br /> 05/16/95 11.76 -23.58 35.34 -- 320 23 <1.0 <1.0 2.0 <br /> 08/03/95 11.76 -23.04 34.80 -- 470 26 1.3 3.4 <0.5 <br /> 11/16/95 11.76 -22.98 34.74 -- <50 <0.5 <0.5 <0.5 <0.5 <br /> 02/22/96 11.76 -20.94 32.70 -- 100 2.2 <0.5 0.54 0.9 -- <br /> 05/07/96 11.83 -18.54 30.37 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 <br /> 08/21/96 11.83 -18.90 30.73 -- <50 <0.5 <0.5 <0.5 <0.5 <15 <br /> 09/24/96 11.83 -19.03 30.86 -- -- -- __ -- <br /> 11106/96 11.83 -19.17 31.00 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 <br /> 02/27/97 11.83 -14.28 26.11 -- 61** <0.5 <0.5 <0.5 <0.5 <2.5 <br /> 05/20/97 11.83 -14.80 26.63 - <50 <0.5 <0.5 <0.5 <0.5 <2.5 <br /> **Chromatogram pattern indicates an unidentified hydrocarbon. <br /> 9-0557.xis/#386843 10 As of 05/17/00 <br />