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Table 1 Page 11 of t8 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2093 <br /> 3425 Tracy Blvd,Tracy,California <br /> Floating <br /> Well Depth product Groundwater Groundwater Total <br /> Date Elevation to Water thickness Elevation Elevation Change TPHg Benzene Toluene Ethylbenzene Xylenes MTBE DO <br /> Sampled (feet MSL) (feet,TOC) in feet (feet,MSL) feet b (ppb) b (mg%_ <br /> ATR 7 11/17/97 NP 1266 3699 006 <50 <0 5 <0 5 <0 5 <0 5 35 -- <br /> (cont) 03/30/98 NP 12 11 3754 055 <50 <0 5 <0 5 <0 5 <0 5 <5 0 13 <br /> 06/25/98 NP 1246 37 19 -035 <50 <0 5 <0 5 <0 5 <0 5 <5 0 25 <br /> 09/11/98 NP 1251 37 14 -005 <50 <0 5 <0 5 <0 5 <0 5 <2 5 1 14 <br /> 12/15/98 NP 1241 3724 0 10 <50 <0 5 <0 5 <0 5 <0 5 <5 0 220 <br /> 03/17/99 NP 1223 3742 0 18 <50 <0 5 <0 5 <0 5 <0 5 <5 0 200 <br /> 05/14/99 NP 1241 3724 0 18 <50 <0 5 <0 5 <0 5 <0 5 <5 0 1 90 <br /> 09/16/99 NP 1258 3707 017 <50 <0 5 <0 5 <0 5 <0 5 <5 0 360 <br /> 12/22199 NP 1252 3713 006 <50 <0 5 <0 5 <0 5 <0 5 <2 50 420 <br /> 02/29/00 NP 1206 3759 046 <50 <0 5 <0 5 <0 5 <0 5 <2 50 470 <br /> 06/07/00 NP 1255 3710 049 <50 <0 5 <0 5 <0 5 <0 5 572 - <br /> 09/25/00 NP 1271 3694 -016 <50 <0 5 <0 5 <0 5 <0 5 <2 50 050 <br /> 12/29/00 P 1243 -- 3722 028 <50 0 <0 500 <0 500 <0 500 0 656 17 5' 67 <br /> ATR 8 08/25/91 4598 - - 2,700 110 <0 5 130 98 -- -- <br /> 09/25/91 885 37 13 -- 1,400 95 <0 5 51 97 <br /> 01/23/92 829 3769 056 <50 25 <0 5 <0 5 <0 5 <br /> 04/20192 8 11 3787 0 18 -- - - - <br /> 04121/92 - 140 14 09 14 93 <br /> 07/08/92 8 48 3750 - 87 40 <0 5 92 08 <br /> 10/07192 869 3729 -021 -- -- -- -- - <br /> 10/08/92 -- 140 78 32 11 88 <br /> 01/18/93 709 3889 - -- - -- -- <br /> 01/19/93 - -- 980 140 17 11 34 <br /> 04/14/93 780 38 18 -- -- -- -- -- <br /> 04/15l93 - - 110 42 <0 5 46 49 <br /> 08/31/93 981 3617 - 700 150 15 41 71 - -- <br /> 10/27/93 868 3730 1 13 52,000 620 2,100 2,800 8,700 <br /> 02/17/94 825 0 14 3783 053 - - - -- <br /> 05/20/94 855 0 14 3753 -030 <br /> 10/07/94 870 014 3738 -0 15 -- <br /> 12/16/94 821 Sheen 3777 039 - -- - - <br /> 02/28/95 8 45 002 3754 -023 -- - <br /> 04/26/95 651 050 3782 026 - <br /> 07/27/95 985 0 12 3621 1 61 - - <br /> 10/26195 928 003 3672 051 - -- -- <br /> 02/12/96 787 002 38 12 140 -- - -- - <br /> 04/18/96 845 002 3754 -058 -- -- - -- <br />