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Tab ' <br /> Groundwater Monitoring 64"La'and Analytical Results <br /> Chevron Service Station#9-8264 <br /> 3775 Tracy Boulevard <br /> Vertical Measurements are in feet. Tracy,California Analytical results are in parts per billion( b) <br /> Well Ground Depth Total <br /> DATE Head Water To SPH SPH SPH Notes TPH- TPH- Benzene Toluene Ethyl- Xylenes MTBE TOG EPA EPA <br /> Elev, Elev, Water Thickness Removed Removed Diesel Gasoline Benzene (EPA 8020) . 8270 8010 <br /> MW-2(cont) <br /> 02/07/97 18.98 10.25 8.73 -- -- -- -- <50 <50 <0.5 <0.5 <0.5 <0.5 <2.5 -- -- <br /> 05/21/97 18.98 8.25 10.73 -- -- -- -- <50 <50 <0.5 <0.5 <0.5 <0.5 <2.5 - - <br /> 08/27/97 18.98 8.67 10.31 -- -- -- -- <50 <50 <0.5 <0.5 <0.5 <0.5 <2.5 -- - <br /> j 11124/97 18.98 8.51 10.47 -- -- -- 81** <50 <0.5 <0.5 <0.5 <0.5 2.9 <br /> 02/12/98 18.98 11.55 7.43 -- -- -- -- <50 <50 <0.5 <0.5 <0.5 <0.5 <2.5 - <br /> 06/09/98 18.98 4.59 14.39 -- -- -- -- <50 <50 <0.5 <0.5 <0.5 <0.5 <2.5 - - <br /> 08/10/98 18.98 8.20 10.78 -- -- -- <50 <50 <0.5 <0.5 <0.5 <0.5 <2.5 - - - <br /> i 11/24/98 18.98 8.28 10.70 -- -- -- - <50 <50 <0.5 <0.5 <0.5 <0.5 3.9 <br /> 03/05/99 18.98 9.24 9.74 -- -- -- -- <50 <50 <0.5 <0.5 <0.5 <0.5 <2.0 - -- <br /> 06/01/99 18.98 8.52 10.46 -- -- -= -- 75.3** <50 <0.5 <0.5. <0.5 <0.5 <2.0 - <br /> e 08/30/99 18.98 8.11 10.87 -- -- - -- <50 <50 <0.5 <0.5 <0.5 <0.5 <6.2 - - <br /> 11/23/99 18.98 8.43 10.55 -- -- -- - <50 <50 <0.5 <0.5 <0.5 <0.5 <2.5 - <br /> 02/02/00 18.98 8.56 10.42 -- - -- -- <50 <50 <0.5 <0.5 <0.5 <0.5 <2.5 - <br /> 05/18/00 18.98 8.66 10.32 0.00 -- -- -- <50 <50 <0.50 <0.50 <0.50 <0.50 <2.5 -- -- -- <br /> **Chromatogram pattern indicated an unidentified hydrocarbon. <br />' MW-3 <br />{ 05/24/96 17.88 8.63 9.25 -- - -- <50 <50 <0.5 <0.5 <0.5 <0.5 140 - <br /> 08/20/96 17.88 7.97 9.91 -- -- -- -- <50 <50 <0.5 <0.5 <0.5 <0.5 190 -- <br /> 11/05/96 17.88 8.13 9.75 -- " -- -- <50 <50 <0.5 <0.5 <0.5 <0.5 250 - - - <br /> .01107/97 17.88 9.26: ., 8.62 <50 <200 <2.0 <2.0 <2.0 <2.0 780 <br /> 02/07/97 17.88 9.47 8.41 -- -- -- - <50 <50 <0.5 <0.5 <0.5 <0.5 190 - - <br /> 05/21/97 17.88 8.09 9.79 -- -- -- -- <50 <50 <0.5 <0.5 <0.5 <0.5 57, - - - <br /> i <br /> 9-8264.xlsl#386854 2 As of 05/18/00 <br />