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i <br /> Ta <br /> Groundwater Monitoring and Analytical Results i <br /> Former Chevron Service Station#9-8632 <br /> 575 Grant Line Road <br /> Vertical Measurements are in feet Tracy,California y P p (ppb) <br /> Analytical results are in arts per billion b <br /> Well Ground Depth Total <br /> DATE Head Water TO TPH- TPH- Benzene Toluene Ethyl- Xylenes MTBE Gil & <br /> Elev Elev Water Diesel Gasoline Benzene Grease <br /> SUMP <br /> 01/07/97 -- - 844 -- 260 43 4 1 2 7 30 <2 5 <1100 <br /> 06/05/97 -- - 911 <0 5 -- 16 <0 5 <0 5 <0 5 <2 5 <1 100 <br /> 09/02/97 - -- 958 -- -- 061 <0 5 <0 5 <0 5 <2 5 <1000 <br /> 11/19/97 - -- 823 -- <0 5 <0 5 <0 5 <0 5 <2 5 130002 <br /> 02/12/98 - 1191 -- -- 21 2 0 13 26 6 4 12,0002 <br /> 06/10/98 -- 881 -- <0 5 <0 5 <0 5 <0 5 <2 5 <5000 <br /> 08/10/98 - -- 936 -- <0 5 <0 5 <0 5 <0 5 <2 5 <5000 <br /> 11/24/98 - - 931 -- -- <0 5 <0 5 <0 5 <0 5 <2 5 <1000 <br /> 03/05/99 -- - 889 -- <50 0 911 <0 5 <0 5 <0 5 <2 0 <1000 <br /> 06/01/99 -- 701 - 653 2 13 377 0 897 3 61 942 <5000 <br /> 08130/99 -- -- 9 21 -- <50 <0 5 <0 5 <0 5 <0 5 <2 5 <5000 <br /> 11/24/99 - - 905 - <50 <0 5 <0 5 <0 5 <0 5 <2 5 <5000 <br /> 02/03/00 NP - -- 894 - <50 <0 50 <0 50 <0 50 <0 50 <2 5/<2 07 <5,000 <br /> 06/26/00 NP -- 9.25 -- <50 <0 50 <0 50 <0 50 <0 50 <2 5 <5,000 <br /> 9 8632 xls/#386855 5 As of 06/26/00 <br />