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• 0 98of2l <br /> Table 1 <br /> Groundwater Efevatlon and Analytical Data <br /> ARCO Service Station#2093 <br /> 3425 Tracy Blvd,Tracy,CA <br /> Well Depth Groundwater Groundwater Product Ethyl- Xylenes <br /> Well Date Elevation to Water Elevation Elevation Thickness TPHg Benzene Toluene benzene (total) ME DO <br /> Number Sampled (ft MSL) (ft TOC) (ft MSL) Change(ft) (ft) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (mg/L) <br /> ATR 5 9/24/1991 11 29 3744 -0 27 <50 <0 5 <0 5 <0 5 <0 5 <br /> (cont) 1/23/1992 1078 3795 0 51 180 1 4 15 15 <0 5 - <br /> 4/20/1992 1070 3803 008 -- -- - <br /> 4/21/1992 290 1 6 <0 5 2 <0 5 <br /> 7/8/1992 1097 3776 240 <0 5 <0 5 0 6 <0 5 - - <br /> 10/7/1992 11 11 37 62 -014 - - -- - <br /> 10/8/1992 - 160 <0 5 <0 5 <0 5 <0 5 -- <br /> 1/18/1993 994 3879 <br /> 1/19/1993 1,000 2 5 <0 5 7 9 13 - <br /> 4/14/1993 1047 3826 -- <br /> 4/15/1993 810 1 5 <0 5 8 3 0 9 <br /> 8/31/1993 11 16 3757 80 <0 5 <0 5 <0 5 <0 5 <br /> 10/27/1993 11 11 3762 005 - 63 <0 5 <0 5 <0 5 <0 5 <br /> 2/18/1994 1073 3800 0 38 160 3 5 1 4 <br /> 5/20/1994 1082 3791 -009 - 600 <0 3 2 1 2 1 7 - <br /> 1017/1994 11 14 3759 -0 32 - 660 <0 5 <0 5 <0 5 <0 5 <br /> 12/16/1994 1077 3796 0 37 410 6 5 <0 5 <0 5 <0 5 - - <br /> 2/28/1995 1080 3793 -003 60 <0 5 0 6 <0 5 <0 5 - - <br /> 4l26/1995 1104 3769 -024 83 <0 5 <0 5 <0 5 <0 5 - - <br /> 7/27/1995 11 27 3746 -023 58 <0 5 <0 5 <0 5 12 -- <br /> 10/26/1995 (a) 1051 -- - <br /> 10/27/1995 -- - <520 <5 <0 5 <0 5 <0 5 - -- <br /> 2/12/1996 9 60 - - 92 1 <0 5 <0 5 <0 5 <br /> 4/18/1996 806 - 1 54 60 <0 5 <0 5 <0 5 <0 5 -- <br /> 7/18/1996 1011 2 05 280 4 8 <0 5 <0 5 <0 5 14 <br /> 11/15/1996 - <br /> 3/14/1997 1094 -- -- <50 <0 5 <0 5 <0 5 <0 5 <2 5 015 <br /> 6/4/1997 NP 1026 0 68 97 2 7 <0 5 <0 5 <0 5 <2 5 017 <br /> 8/11/1997 NP 1044 -- 0 1 8 220 3 4 0 6 <0 5 <0 5 6 9 -- <br /> 11/17/1997 NP 10 50 - 006 190 2 8 0 65 <0 5 <0 5 51 - <br /> 313 011 9 9 8 NP 9 81 -- 069 88 <0 5 <0 5 <0 5 <0 5 6 2 2 1 <br /> 6/25/1998 NP 10 11 030 <50 <0 5 <0 5 <0 5 <0 5 911 1 5 <br /> 9/11/1998 Well inaccessible <br /> 12/15/1998 NP 1020 134 <0 5 <0 5 <0 5 <0 5 8 98 17 <br /> 3/17/1999 NP 981 0 39 -- 756 0 586 <0 5 0 876 102 <5 0 7 4 <br /> 5/14/1999 NP 1034 -- -0 53 <50 <0 5 <0 5 <0 5 <0 5 <5 8 5 <br /> 9/16/1999 NP 1040 - -006 -- <50 <0 5 <0 5 <0 5 <0 5 5 12 2 2 <br /> K 1WprocessV6 BP ARC05a209310uarterfyll 0TR 0352093 GW MR1003 <br />