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Tabj <br /> Groundwater Monitoring 14pand Analytical Results <br /> Chevron Service Station#9-0557 <br /> 139 South Center Street <br /> Vertical Measurements are in feet. Stockton,California Analytical y . p (ppb) <br /> cal results are in arts per billion b <br /> Well <br /> DATE Head Water To P�otet+ TPHy Benzene Toluene Ethyl- Xylenes MTBE Fecal <br /> Elev. Elev, wa#er �sasol;tte Benzene Coliform <br /> MW-3 <br /> 03/08/91 11.78 -32.50 44.28 - ND 0.5 ND ND ND -- -- <br /> 06/27/91 11.78 -32.83 44.61 -- 130 ND ND ND 2.5 -- -- <br /> 09/12/91 11.78 -33.20 44.98 -- 82 ND ND ND 0.5 - -- <br /> 12/06/91 11.78 -33.31 45.09 -- 85 ND ND ND ND -- -- <br /> 04/03/92 11.78 -32.01 43.79 -- ND ND ND ND ND -- -- <br /> 07/10/92 11.78 -33.31 45.09 -- 120 1.1 ND ND 2.5 --11/10/92 11.78 -34.92 46.70 -- 104 0.5 ND 0.6 1.7 -- <br /> 02/16/93 11.78 -32.91 44.69 -- 54 ND ND ND 2.0 -- <br /> 05/17/93 11.78 -30.70 42.48 -- 84 0.8 2.0 1.0 10 -- <br /> 08/17/93 11.78 -30.75 42.53 -- ND ND ND ND 0.7 -- <br /> 11/22/93 11.78 -31.14 42.92 -- 80 ND ND ND 1.0 -- -- <br /> 02/09/94 11.78 .30.97 42.75 ND ND 0.9 ND 1.0 - -- <br /> 05/27/94 11.78 -29.92 41.70 -- 62 ND 0.6 ND 0.6 -- <br /> 08/05/94 11.78 -30.18 41.96 <50 <0.5 <0.5 <0.5 0.6 <br /> 11/22/94 11.78 -31.04 42.82 - <50 <0.5 <0.5 <0.5 <0.5 -- -- <br /> 02/24/95 11.78 -27.14 38.92 -- <50 <0,5 <0.5 <0.5 0.6 --<50 <0.5 <0.5 <0.5 <0.5 -- <br /> 08116/95 11.78 -23.44 35.22 -- -- '- <br /> 08/03/95 11.78 -22.92 34.70 -- <50 <0.5 <0.5 <0.5 <0.5 --11/16/95 11.78 -22.97 34.75 -- <50 <0.5 <0.5 <0.5 <0.5 -- -- <br /> 02/22/96 t1,78 -20.88 32.66 <50 <0.5 <0.5 <0.5 <0.5 -- -- <br /> 05/07/96 11.84 -18.60 30.44 <50 <0.5 <0.5 <0.5 <0.5 <2.5 -- <br /> 08/21/96 11.84 -18.91 30.75 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 -- <br /> 09/24/96 11.84 -I9.03 30.87 -- -- -- -- -- -- -- -- <br /> 11/06/96 11.84 -19.10 30.94 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 -- <br /> 02/27/97 11.84 -14.30 26.14 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 -- <br /> 05/20/97 11.84 -14.80 26.64 -- <50 <br /> <0.5 <0.5 <0.5 <0.5 <2.5 <br /> 09/02197 11.84 -15.45 27.29 -- <50 <0.5 <0.5 <0.5 <0.5 <2.5 -- <br /> 9-0557.xW#386843 5 As of 08/14/00 <br />