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i <br /> • � Page 14 of 20 <br /> Table 1 <br /> Groundwater Elevation 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 TPH9 Benzene Toluene benzene (total) MtBE DO <br /> Number Sampled (ft,MSS.) ft,TQC) (ft,MSL) Change(ft) (ft) (ppb) (ppb) (ppb) (Ppb) (ppb) (ppb) (mg/L) <br /> ATR-9 7/27/1995 1173 3695 027 .. .. <br /> (cont) 10/26/1995 1180 3688 007 <50 <0 5 <0 5 <0 5 <0 5 <br /> 2/12/1996 1090 $778 0 90 <50 <0 5 <0 5 <0 5 <06 -- <br /> 4/18/1996 11 30 3738 -040 -- -- <br /> 7/18/1996 1168 3700 -038 -- <50 <0 5 <0 5 <0 5 <0 5 <5 -- <br /> 11/15/1996 1223 3645 -055 - -- <br /> 3/14/1997 NP 1223 3645 000 <50 <0 5 <0 5 <0 5 <0 5 - 020 <br /> 6/4/1997 11 52 3716 0 71 -- -- -- - -- 040 <br /> 8/11/1997 NP 1186 3682 -0 34 <50 <0 5 <0 5 <0 5 <0 5 <2 5 -- <br /> 11/17/1997 1172 3696 014 -- -- -- -. -- <br /> &30/1998 NP 11 10 37 58 0 62 <50 <0 5 <0 5 <0 5 <0 5 <5 01<2 0` 240 <br /> 6/25/1998 11 61 3717 -0 41 - -- -- -- -- -- <br /> 9/11/1998 <br /> - <br /> 9/11/1998 NP 1165 3703 -014 <50 <0 5 <0 5 <0 5 <0 5 <25 1 81 <br /> 12/15/1998 1153 3715 012 - - - -- - -- 170 <br /> 3/17/1999 NP 1125 3743 028 <50 <0 5 <0 5 <0 5 <0 5 <5 0 160 <br /> 5/14/1999 NP 11 5o 3718 -026 - -- - - -- 240 <br /> 9/16/1999 NP 1174 3694 -024 <50 <0 5 <0 5 <0 5 <0 5 <5 0 4 30 <br /> 12/22/1999 NP 1161 3707 0 13 -- -- - 1 99 <br /> 2/29/2000 NP 1104 37 64 0 57 - <50 <0 5 <0 5 <0 5 <0 5 <2 5 430 <br /> 6712000 Well inaccessible <br /> 9/25/2000 Well inaccessible <br /> 12121/2000 Well inaccessible <br /> 3/27/2001 P 11 40 3728 036 - <50 0 <0 500 <0 500 <0 500 <0 500 <2 00' 3 2 <br /> 6/20/2001 1147 3721 -007 -- - -- -- -- - <br /> 9/12/2001 P 1150 3718 003 <50 <0 50 <0 50 <0 50 <0 50 19 14 <br /> 12/19/2001 1140 3728 0 10 - -- -- - .. <br /> 3/14/2002 P 1151 3717 -011 - <50 <0 5 <0 5 <0 5 <0 5 <0 60' 083 <br /> 6/28/2002 -- -- -• •- .- .. .. .. .. .. .. <br /> ATR 10 10/16/1990 4807 -- -- - <50 <0 5 <0 5 <0 5 <0 5 - <br /> 10/19/1990 1020 3787 -- -- -- -. -- __ _ <br /> 1/10/1991 1007 3800 013 - <50 <0 5 <0 5 <0 5 <0 5 -- -- <br /> 4/10/1991 1000 3807 007 - <50 <0 5 <0 5 <0 5 <0 5 -- <br /> 7/12/1991 1021 3786 -0 21 <50 <0 5 <0 5 <0 5 <0 5 <br /> 9/24/1991 1032 3775 -0 11 -- -- .. -. <br /> 9/25/1991 -- -- <50 <0 5 <0 5 <0 5 <0 5 <br /> 1/23/1992 1000 3807 <50 <0 5 <0 5 <0 5 <0 5 - -- <br /> K V5 BP ARCM20931Quartertyl2 QTR 021Table 1_2_3 ids <br />