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Tab* <br /> Groundwater Monitoring Data and Analytical Results <br /> Chevron Service Station#9-6I71 - <br /> 6633 Pacific Avenue <br /> Vertical Measurements are in feet Stockton,California Analytical results are in parts per billron( b) <br /> Well Ground Depth <br /> DA'T'E Head Water To Notes TPH- Benzene Toluene Ethyl- Xylenes MTBE EDB DIESEL Oil TOG <br /> Elev Elev Water Gasoline Benzene <br /> MW-7(cont) <br /> 02/12/96 1269 -3127 4396 - <50 <0 5 <0 5 <0 5 <0 5 - <br /> 05/12/96 1269 -28 82 4151 -- <50 <0 5 <05 <0 5 <0 5 <2 5 <br /> 08/12/96 1269 -29 22 4191 -- <50 <0 5 <0 5 <0 5 <0 5 <2 5 <br /> 11/11/96 1269 -2871 4140 - 51 74 49 073 33 <25 - <br /> 02/24/97 1269 -2591 3860 -- 370 39 54 10 49 <2 5 - <br /> 07/20/97 1269 -2601 3870 -- 100* 3 4 <0 5 066 1 3 5 5 11/10/97 1269 -2591 3860 1700* <0 5 <0 5 <0 5 <0 5 <2 5 -- <br /> 11/10/97 t2 69 -2591 3860 Confirmation run -- -- -- -- -- 7 0 <br /> 11/14/97 1269 -- - -- -- -- -- -- <br /> 03/01/98 1269 -23 17 3586 -- 330 40 46 7 4 34 3 5 - <br /> 03/01/98 1269 -23 17 35 86 Confirmation run -- -- -- <br /> -- -- 5l <br /> 05/10/98 1269 -2131 3400 -- 100* <05 <0 5 <0 5 <0 5 5 5 <br /> 08/18/98 1269 -21 16 3385 -- 150* <0 5 <0 5 <0 5 <0 5 19 <br /> 11/18/98 1269 -2052 3321 -- <50 <0 5 <0 5 <0 5 2 0 <2 5 <br /> 02/23/99 1269 -4858 6127 <50 <0 5 <0 5 <0 5 <0 5 <5 0 - <br /> 05119l99 1269 -1851 3120 -- 54 5* <0 5 <0 5 <0 5 <0 5 <5 0 - - <br /> 08/26/99 1269 -1954 3223 -- 317 167 282 <0 5 1 3 <5 0 <br /> 11/17/99 1269 -1953 3222 -- 262 <0 5 <0 5 <0 5 <0 5 5 16 - <br /> 02/16/00 1269 -2158 3427 -- 328 <1 0 <1 0 <1 0 <1 0 8 0 <br /> 05/22/00 1269 -1935 32.04 -- 150' <0 50 <0.50 <0 50 <0 50 91 -- -- -- -- <br /> *Chromatogram pattern indicates an unidentified hydrocarbon <br /> 9 6171 xis/#385121 10 As of 05/22/00 <br />