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s • <br /> P•age 3 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 l7evation to Water Elevation Elevaton Thickness TPHg Benzene Toluene benzene (total) MtBE DO <br /> Number Sampled (ft,MSL) (ft,TOC) (ft,MSL) Change(ft) (ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg1L) <br /> ATR-2 7/10191 11 74 3748 -0 39 - <50 <0 5 <0 5 <0 5 <0 5 <br /> (cont) 9124191 1202 3720 -028 <50 <0 5 <0 5 <0 5 <0 5 -- -- <br /> 1/23/92 11 50 3762 042 - <50 <0 5 <0 5 <0 5 <0 5 -- <br /> 4120/92 1153 3769 007 -- <50 <0 5 <0 5 <0 5 <0 5 <br /> 718192 11 75 3747 -0 22 <50 2 8 <0 5 <0 5 <0 5 - - <br /> 10/7/92 1183 3739 -008 -- 59 5 7 <0 5 <0 5 <0 5 <br /> 1/18/93 -- - <br /> 4/14/93 1129 3793 -- 55 3 8 0 7 08 19 -- <br /> 8130193 1196 3726 -0 67 -- <50 <0 5 <0 5 <0 5 <0 5 - <br /> 10/27/93 1196 3727 001 <50 <0 5 <0 5 <0 5 <0 5 <br /> 2118194 1154 3768 0 41 -- <10 07 0 9 <0 3 0 7 - - <br /> 5/20/94 1161 3761 -007 <10 0 9 <0 3 <0 3 <0 5 -- <br /> 10/7/94 1193 3729 -032 <50 <0 5 <0 5 <0 S <0 5 -- <br /> 12/16/94 1156 3766 0 37 -- <50 <0 5 <0 5 <0 5 <0 5 . <br /> 2/28/95 1160 3762 -004 <50 <0 5 <0 5 <0 5 <0 5 <br /> 4!25195 1196 3727 <br /> -035 -- <50 <0 5 <0 5 <0 5 <0 5 <br /> 7/27195 1291 3631 -0 96 - <50 <0 5 <0 5 <0 5 <0 5 -- - <br /> 10/26/95 1226 3696 066 - <50 <0 5 <0 5 <0 5 <0 5 - <br /> 2112/96 1140 37 82 0 86 <50 <0 5 <0 5 <0 5 <0 5 <br /> 4/18196 11190 37 32 -050 - <250 <2 5 <2 5 <2 5 <2 5 - <br /> 7/18(96 1210 3712 -020 -- <50 <0 5 <0 5 <0 5 <0 5 500 - <br /> 11/15/96 1270 36 52 -060 -- <50 <0 5 <0 5 <0 5 <0 5 750 -- <br /> 3/14/97 P 1270 3652 000 - <50 <0 5 <0 5 <0 5 <0 5 280 008 <br /> 6/4197 NP 1202 3720 068 <50 0 64 <0 5 <0 5 <0 5 480 006 <br /> 8/11/977 P 1233 3689 -0 31 <50 <0 5 <05 <0 5 <0 5 440 <br /> 11/17/97 P 1226 3696 007 <50 <0 5 <0 5 <0 5 <0 5 98 <br /> 3/30/98 NP 1182 3740 0 44 -- <50 <0 5 <0 5 <0 5 <0 5 18/20' 12 <br /> 6/25(98 NP 1206 3717 -0 23 <50 <0 5 <0 5 <0 5 <0 5 109 16 <br /> 9/11/98 NP 12 12 3710 -007 <50 <0 5 <0 5 <0 5 <0 5 250 167 <br /> 12/15(98 NP 1201 3721 Oil <60 <0 5 <0 5 <0 5 <0 5 <5 0 15 <br /> 3/17/99 NP 1165 3757 036 - <50 <0 5 <0 5 <0 5 <0 5 <5 0 2 3 <br /> 5/14/99 NP 1205 3717 -0 40 <50 <0 5 <0 5 <0 5 <0 5 <5 0 190 <br /> 9116199 NP 1223 3699 -018 - <50 <0 5 <0 5 <0 5 <0 5 <5 0 37 <br /> 12/22/99 NP 1214 37 08 009 -- <50 <0 5 <0 5 <0 5 <0 5 <2 50 7 43 <br /> 7129100 NP 1150 3772 064 - <50 <0 5 <0 5 <0 5 <0 5 483 51 <br /> 6/7/00 NP 1211 3711 -0 61 <50 <0 5 <0 5 <0 5 <0 5 126 -- <br /> Pralects'ARCO/2093(Repods+Tableslgwtables2093 As <br />