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i <br /> Page 11 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 Data Elevation to Water Elevation Bevalion 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) (mg/L) <br /> ATR-7 4/15(93 -- -- -- -- <50 2 9 <0 5 <0 5 <0 5 <br /> (cont) 8/31/93 1224 37 41 -- - <50 <0 5 <0 5 <0 5 <0 5 <br /> 10/27/93 1223 3742 0 01 -- <50 <0 5 <0 5 <05 1 3 <br /> 2118/94 1193 3772 0 30 <10 <0 3 <0 3 <0 3 <0 5 -- -- <br /> 5/20/94 1200 37 65 -0 07 -- <10 <0 3 <0 3 <0 3 <0 5 <br /> 5017/94 1223 3742 -0 23 -- <50 <0 5 <0 5 <0 5 <0 5 -- <br /> 12/16/94 1194 3771 029 -- <50 <0 5 <0 5 <0 5 <0 5 <br /> 2/28/95 1200 3765 -006 -- <50 <0 5 <0 5 <0 5 <0 5 <br /> 4/25/95 1241 37 24 -0 41 - <50 <0 5 <0 5 <0 5 <0 5 <br /> 7/27195 1261 3704 -020 -- <50 <0 5 <0 5 <0 5 <0 5 - <br /> 10/26/95 1267 3698 -006 <50 <0 5 <0 5 <0 5 <0 5 <br /> 2/12J96 1196 3770 072 -- <50 <0 5 <0 5 <0 5 <0 5 <br /> 4/18/96 1235 3730 -040 - <60 <0 5 <0 5 <0 5 <0 5 -- <br /> 7/18/96 12 45 3720 -010 -- <50 <0 5 <0 5 <0 5 <0 5 28 <br /> 11/15(96 1311 3664 -0 66 <50 <0 5 <0 5 <0 5 <0 5 120 - <br /> 3/14/97 1320 3645 -009 <50 <0 5 <0 5 <0 5 <0 5 6 3 010 <br /> 6/4/97 NP 1244 3721 076 - <50 <0 5 <0 5 <0 5 <0 5 <2 5 013 <br /> 8/11/97 NP 1272 3693 -028 <50 <0 5 <05 <06 <0 5 22 <br /> 11/17/97 NP 1266 36 99 006 - <50 <0 5 <0 5 <0 5 <0 5 3 5 . <br /> 3/30198 NP 1211 3754 065 -- <50 <0 5 <0 5 <0 5 <0 6 <5 0 13 <br /> 6/25/98 NP 1246 3719 -0 35 <50 <0 5 <0 5 <0 5 <0 5 <5 0 2 5 <br /> 9/11/98 NP 1251 3714 -005 -- <50 <0 5 <0 5 <0 5 <0 5 <2 5 1 14 <br /> 12/15/98 NP 1241 3724 010 <50 <0 5 <0 5 <0 5 <0 5 <5 0 220 <br /> 3/17/99 NP 1223 3742 018 -- <50 <0 5 <0 5 <0 5 <0 5 <5 0 200 <br /> 5/14/99 NP 1241 3724 -018 <50 <0 5 <0 5 <0 5 <0 5 <5 0 190 <br /> 9/16(99 NP 1268 3707 -017 <50 <0 5 <0 5 <0 5 <0 5 <5 0 360 <br /> 12/22/99 NP 1252 3713 006 <50 <0 5 <0 5 <0 5 <0 5 <2 50 420 <br /> 2129100 NP 1206 37 59 046 -- <50 <0 5 <0 5 <0 5 <0 5 <2 50 470 <br /> 6/7/00 NP 1255 3710 -049 - <50 <0 5 <0 5 <0 5 <0 5 572 <br /> 9/25100 NP 1271 3694 -016 - <50 <0 5 <0 5 <0 5 <0 5 <2 50 050 <br /> 12!29/00 P 1243 37 22 028 <50 0 <0 500 <0 500 <0 500 0 656 17 5* 6 7 <br /> 3127/01 P 1233 3732 010 - <50 0 <0 500 <0 500 <0 500 <0 500 305* 3 8 <br /> 6/20101 P 12 47 3718 -014 -- <50 <0 50 <0 50 <0 50 <0 50 580* <br /> 9/12101 P 1260 3715 -0 03 - <50 <0 50 <0 50 <0 50 <0 50 140 12 <br /> 12/19/01 P 1235 3730 015 -- <50 <0 So <0 50 <0 5o <0 5o 7 2* 101 <br /> Pro)ect%�ARCO/2093/Reports/Tables/gwtables2093 As <br />