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TabfeT Page of 18 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2093 <br /> 3425 Tracy Blvd,Tracy,Calrfomia <br /> Floating <br /> Well Depth product Groundwater Groundwater Total <br /> Date Elevation to Water thickness Elevation Elevation Change TPWg Benzene Toluene Ethylbenzene Xylenes MTBE DO <br /> Sampled (feet,MSL) (feet,TOC) in feet (feet,MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/1) <br /> ATR-9 02/17/94 1089 3779 034 -- -- - - <br /> (oont) 02/18/94 - -- - <10 <0 3 04 <0 3 <0 5 <br /> 05/20/94 1097 - 3771 -- <10 <0 3 <0 3 <0 3 <0 5 <br /> 10/07/94 11 19 3749 -022 <50 <0 5 <0 5 <0 5 <0 5 <br /> 12/16/94 1091 -- 3777 028 <50 <0 5 <0 5 <0 5 <0 5 <br /> 02/28/95 1093 - 3775 -002 <50 <0 5 <0 5 <0 5 <0 5 <br /> 04/25/95 1146 -- 3722 -053 <50 <0 5 <0 5 <0 5 <0 5 <br /> 07/27/95 1173 -- 3695 -027 -- -- - - <br /> 10/26/95 1180 3688 -007 <50 <0 5 <0 5 <0 5 <0 5 <br /> 02/12/96 1090 3778 090 <50 <0 5 <0 5 <0 5 <0 5 -- <br /> 04/18/96 1130 -- 3738 -040 -- -- -- <br /> 07/18/96 1168 -- 3700 -038 <50 <0 5 <0 5 <0 5 <0 5 <5 <br /> 11/15/96 1223 -- 3645 -055 -- - -- -- - <br /> 03/14/97 NP 1223 3646 000 <50 <0 5 <0 5 <0 5 <0 5 - 020 <br /> 06/04/97 1152 -- 3716 071 - - -- 040 <br /> 08/11/97 NP 1186 3682 -034 <60 <0 5 <0 5 <0 5 <0 5 <2 5 - <br /> 11/17/97 1172 -- 3696 014 -- -- - - <br /> 03/30/98 NP 11 10 3758 062 <50 <0 5 <0 5 <0 5 <0 5 <5 0/<2 0' 240 <br /> 06/25/98 1151 3717 -0 41 -- -- -- - - - <br /> 09/11/98 NP 1165 -- 3703 -014 <50 <0 5 <0 5 <0 5 <0 5 <2 5 1 81 <br /> 12/15/98 1153 -- 3715 012 -- -- - - -- - 170 <br /> 03/17/99 NP 1126 •• 3743 028 <50 <0 5 <0 5 <0 5 <0 5 <5 0 160 <br /> 05/14/99 NP 1160 - 3718 -025 - - -- -- - 240 <br /> 09/16/99 NP 1174 - 3694 -024 <50 <0 5 <0 5 <05 <0 5 <5 0 430 <br /> 12/22/99 NP 1161 3707 013 -- - - 1 99 <br /> 02/29/00 NP 1104 -- 3764 0 57 <50 <0 5 <0 5 <0 5 <0 5 <2 5 430 <br /> 06/07/00 Well Inaccessible -- -- -- - - <br /> 09/25/00 Well Inaccessible - - <br /> 12/21/00 Well Inaccessible - - - - - - - <br /> 03/27/01 P 1140 -- 3728 -036 <50 0 <0 500 <0 500 <0 500 <0 500 <2 00` 32 <br /> ATR 10 10/16/90 4807 - -- -- <50 <0 5 <0 5 <0 5 <0 5 - - <br /> 10/19/90 1020 - 3787 -- -- -- - - <br /> 01/10/91 1007 3800 013 <50 <0 5 <0 5 <0 5 <0 5 - - <br /> 04/10/91 1000 -- 3807 007 <50 <0 5 <0 5 <0 5 <0 5 <br /> 07/12/91 1021 -- 3786 -021 <50 <0 5 <0 5 <0 5 <0 5 <br />