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dab <br /> Groundwater Monitoring D nd 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-6(cont) <br /> 09/02/97 11.83 -15.58 27.41 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 <br /> 11/24/97 11.83 -16.03 27.86 -- <50 <0.5 <0.5 0.52 <0.5 <2.5 <br /> 02/11/98 11.83 -13.32 25.15 *** <50 <0.5 <0.5 <0.5 <0.5 <2.5 <br /> 06/09/98 11.83 -9.41 21.24 + 57 0.59 1.1 <0.5 <0.5 <2.5 <br /> 07/30/98 11.83 -9.97 21.80 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 <br /> 11110/98 11.83 -10.99 22.82 -- <50 0.7 <0.5 <0.5 <0.5 <2.5 <br /> 02/17/99 11.83 -10.28 22.11 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 <br /> 05/18/99 11.83 -9.41 21.24 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 <br /> 08/30/99 11.83 -10.59 22.42 <50 <0.5 3.23 <0.5 0.988 <5.0 <br /> 12/02/99 11.83 -11.26 23.09 -- <50 <0.5 <0.5 <0.5 <0.5 <5.0 <br /> 02/02/00 11.83 -10.99 22.82 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 <br /> 05/17/00 11.83 -8.34 20.17 -- <50.0 <0.500 <0.500 <0.500 <0.500 <2.50 -- <br /> I <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 /> MW-7 <br /> 12/28/95 11.08 -23.03 34.11 -- -- -- -- <br /> 05/16/96 11.08 -22.12 33.20 -- 9700 350 97 750 880 <125 <br /> 08/21/96 11.08 -- -- -- -- -- - - <br /> 09/24/96 11.08 -19.59 30.67 -- 9800 450 66 790 500 110.00 <br /> 11/06/96 11.08 -19.93 31.01 -- 8200 290 28 470 380 54.00 <br /> 02/27/97 11.08 -14.74 25.82 -- 8700 340 51 510 390 <100 <br /> 05/20/97 11.08 -15.30 26.38 -- 8200 290 60 460 410 110.00 - <br /> 09/02/97 11.08 -16.12 27.20 -- 6400 230 35 400 260 23.00 -- <br /> 9-0557.xls/#386843 11 As of 05/17/00 <br />