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Tab <br /> Groundwater Monitoring and Analytical Results <br /> Chevron Service Station#9-0557 <br /> 139 South Center Street <br /> Stockton,California <br /> Vertical Measurements are in feet. Analytical results are in parts per billion(ppb) <br /> Well Ground Dept[f: <br /> DATE Head water Tb bates SPH«: Benzine Toluene Ethyl- Xylenes MTBE Fecal <br /> Elev. Eley: Water: Gasoline Benzene Coliform' <br /> MW-3(cont) <br /> 11/24/97 11.84 -15.89 27.73 * <50 1.2 <0.5 3.2 1.7 <2.5 -- <br /> 02/11/98 11.84 -13.12 24.96 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 -- <br /> 06/09/98 11.84 -9.99 21.83 ** <50 <0.5 <0.5 <0.5 <0.5 <2.5 -- <br /> 07/30/98 11.84 -10.03 21.87 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 11/10/98 11.84 -10.89 22.73 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 -- <br /> 02/17/99 11.84 -10.20 22.04 -- <50 <0.5 <0.5 <0.5 <0.5 45.00 -- <br /> 05/18/99 11.84 -9.41 21.25 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 -- <br /> 08/30/99 11.84 -10.74 22.58 -- <50 <0.5 2.05 <0.5 0.648 <5.0 -- <br /> 12/02/99 11.84 -11.11 22.95 -- <50 <0.5 <0.5 <0.5 <0.5 <5.0 -- <br /> 02/02/00 11.84 -10.96 22.80 <50 <0.5 <0.5 <0.5 <0.5 <2.5 <br /> 05/17/00 11.84 -8.77 20.61 -- <50.0 <0.500 <0.500 <0.500 <0.500 <2.50 - <br /> 08/14/00 11.84 -9.84 21.68 - <50 <0.50 <0.50 <0.50 0.83 <2.5 -- <br /> 'Oxygenates by EPA 8260 and Methanol by EPA 8015 were not detected; see lab report for detection limits. <br /> •*Oxygenates by EPA 8260 were not detected;see lab report for detection limits. <br /> 9-0557.xls/#386843 6 As of 08/14/00 <br />