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Tao Pof 16 <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 TPH-G Benzene Toluene Ethylbenzene Xylenes MTBE DO <br /> Sampled (feet,MSL) (feet,TOC) In feet (feet,MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mgll) <br /> ATR-6 04/10/91 1152 - 3783 OU <50 <0 5 <05 <05 <0 5 - - <br /> (cont) 07/10191 11 76 - 37 59 -024 <50 <0 5 <05 <0 5 <0 5 - - <br /> 09/24191 11 95 - 37 40 -019 <50 <0 5 <05 <0 5 <0 5 - <br /> 01/23/92 11 66 - 3769 029 <50 <0 5 <05 <0 5 <0 5 - - <br /> 04/20/92 1156 - 3779 010 -- -- - - - _ <br /> 04121/92 - -- - - <50 <0 5 <05 <0 5 <0 5 - .- <br /> 07/08/92 11 72 - 3763 -- <50 <05 <0 5 <05 <0 5 -- - <br /> 10/07/92 11 82 -- 3753 -010 <50 <0 5 <0 5 <05 <0 5 -- - <br /> 01118l93 1104 -- 3831 078 <50 <0 5 <0 5 <05 <0 5 - - <br /> 04/14193 11 42 - 3793 -0 38 310 75 <05 <05 <0 5 -- -- <br /> 08/31/93 -- - - - - - __ _ - <br /> 10/27/93 11 84 -- 3751 -- <50 <0 5 <0 5 <0 5 <05 <br /> 02/17/94 - - - - - __ _ _ <br /> 05/20/94 -- - - .. - _ -. _ -- _ <br /> 10/07/94 11 85 3750 -- <50 <0 5 <0 5 <0 5 <0 5 - -- <br /> 12/16/94 1164 -- 3781 031 <50 <0 5 <0 5 <0 5 <0 5 - <br /> 02/28195 1165 3770 -011 <50 <0 5 <0 5 <0 5 <0 5 - - <br /> 04/26/95 - - .. __ <br /> 07/27/95 <br /> 10/26/95 1218 - 3717 -- <50 <05 <05 <0 5 <0 5 - <br /> 02/12/96 11 57 -- 3778 0 61 <50 <0 5 <0 5 <05 <0 5 - - <br /> 04/18/96 11 91 - 3744 -0 34 - - -- - .. _ _ <br /> 07/18/96 1201 - 3734 -010 <50 <0 5 <0 5 <05 <05 10 - <br /> 11/15/96 1263 -- 3672 -062 - -- -- _ _ -- _ <br /> 03114/97 -- -- -- - _ _ _ - _ - <br /> 06/04/97 1201 -- 3734 -- -- -- -- - -- -- 014 <br /> 08/11/97 NP 1223 -- 3712 -0 22 <50 <0 5 <0 5 <05 <0 5 56 -- <br /> 11/17/97 1224 -- 3711 -0 01 - -- -- - _ _ _ <br /> 03/30198 NP 1169 37 66 055 <50 <0 5 <05 <0 5 <0 5 41 19 <br /> 06/25/98 1197 -- 37 38 -028 -- -- - .- - - <br /> 09/11/98 NP 1208 - 3727 -011 <50 <05 <0 5 <0 5 <0 5 <5 0 1 27 <br /> 12/15/98 1195 - 3740 013 - -- - - -- 09 <br /> 03/17/99 NP 1186 - 3749 009 <50 <0 5 <0 5 <0 5 <0 5 <5 0 19 <br /> 05/14/99 NP 1201 - 3734 -015 -- -- -- - - -- 24 <br /> 09/16/98 NP 1217 -- 3718 -016 <60 <0 6 <0 5 <0 6 <0 6 <5 0 53 <br />