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Tab] <br /> D <br /> Groundwater Monitoring D d Analytical 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-1{cant} <br /> 11/24/97 11.23 -16.20 27.43 * <50 0.69 1.6 0.93 1.5 <2.5 <br /> 02/11/98 11.23 -13.29 24.52 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 <br /> 06/09/98 11.23 -18.13 29.36 *" <50 <0.5 <0.5 <0.5 <0.5 <2.5 <br /> 07/30/98 11.23 -10.12 21.35 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 <br /> 11/10/98 11.23 -11.04 22.27 <50 <0.5 <0.5 <0.5 <0.5 <2.5 <br /> 02/17/99 11.23 -10.36 21.59 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 <br /> 05/18/99 11.23 -9.52 20.75 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 <br /> 08/30/99 11.23 -10.67 21.90 -- <50 <0.5 2.7 <0.5 0.837 <5.0 <br /> 12/02/99 11.23 -11.30 22.53 -- <50 <0.5 <0.5 <0.5 <U <5.0 <br /> 02/02/00 11.23 -11.11 22.34 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 <br /> 05/17/00 11.23 -8.93 20.16 -- <50.0 <0.500 <0.500 <0.500 <0.500 <2.50 <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 fordetection limits. <br /> 9-0557.x1s/#386843 2 As of 05/17/00 <br />