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Tab •Groundwater Monitoring qW and 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 <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 /> 08105l94 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 <2.5 -- <br /> 09/24/96 11.83 -19.03 30.86 -- -- -- -- -- -- -- -- <br /> 11/06/96 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 /> 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 /> 06l09198 11.83 -9.41 21.24 + 57 0.59 1.1 <0.5 <0.5 <2.5 -- <br /> **Chromatogram pattern indicates an unidentified hydrocarbon. <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 11 As of 08114100 <br />