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• Page iiof20 <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 TPNg Benzene Toluene benzene (total) ME DO <br /> Number Sampled (tt,MSL). (ft,TOC) (ft MSL) Change(ft) (ft) (ppb) (ppb) . . (ppb) (ppb) (ppb) (ppb) (mg/L) <br /> ATR 7 4/14/1993 — _ 1175 3790 - - -- -- - - <br /> (cont) 4/15/1993 -- - <50 2 9 <0 5 <0 5 <0 5 <br /> 8/31/1993 1224 3741 - <60 <0 5 <0 5 <0 5 <0 5 <br /> 10/27/1993 1223 3742 001 <50 <0 5 <0 5 <0 5 1 3 <br /> 2118/i 994 1193 3772 030 -- <10 <0 3 <0 3 <0 3 <0 5 - <br /> 5/20/1994 12 00 3766 007 <10 <0 3 <03 <0 3 <0 5 - <br /> 10/7/1994 1223 3742 -023 <50 <0 5 <0 5 <0 5 <0 5 <br /> 12/16/1994 11 94 3771 029 <50 <0 5 <0 5 <0 5 <0 5 - <br /> 2128/1995 1200 3765 -006 <50 <0 5 <0 5 <0 5 <0 5 -- <br /> 4/25/1995 1241 3724 -0 41 <50 <0 5 <0 5 <0 5 <0 5 - <br /> 7/27/1995 1261 3704 -020 <50 <0 5 <0 5 <0 5 <0 5 - <br /> 10/26/1995 1267 3698 -006 <50 <0 5 <0 5 <0 6 <0 5 - <br /> 2/12/1996 1195 37 70 072 <50 <0 5 <0 5 <0 5 <0 5 - <br /> 4/18/1996 1235 3730 -040 -- <60 <0 5 <0 5 <0 5 <0 5 - <br /> 7/18/1996 1245 3720 010 -- <50 <0 5 <0 5 <0 5 <0 5 28 <br /> 11/15//1996 1311 3664 -0 66 <50 <0 5 <0 5 <0 5 <0 5 120 -- <br /> 9/14/1997 1320 3646 009 <50 <0 5 <0 5 <0 5 <0 5 6 3 010 <br /> 6/4/1997 NP 1244 3721 076 - <50 <0 5 <0 5 <0 5 <0 5 <2 5 013 <br /> 8/11/1997 NP 1272 3693 -028 - <50 <0 5 <0 5 <0 5 <0 5 22 -- <br /> 11/17/1997 NP 1266 3699 006 <50 <0 5 <0 5 <0 5 <0 5 3 5 - <br /> 3/30/1998 NP 1211 37 54 055 - <50 <0 5 <0 S <0 5 <0 5 <5 0 13 <br /> 6/25/1998 NP 1246 3719 -036 <50 <0 5 <0 5 <0 5 <0 5 <5 0 2 5 <br /> 9/11/1998 NP 1251 3714 -005 - <50 <0 5 <0 5 <0 5 <0 6 <2 5 1 14 <br /> 12/15/1998 NP 1241 3724 010 <50 <0 5 <0 5 <0 5 <0 5 <5 0 220 <br /> 3/17/1999 NP 1223 3742 018 <50 <0 5 <0 5 <0 5 <0 5 <5 0 200 <br /> 5/14/1999 NP 1241 37 24 -018 -- <60 <0 5 <0 5 <0 5 <0 5 <5 0 1 90 <br /> 9/16/1999 NP 1258 3707 -017 -- <50 <0 5 <0 5 <0 5 <0 5 <5 0 360 <br /> 12!22/1999 NP 1252 3713 006 <50 <0 5 <0 5 <0 5 <0 5 <2 50 420 <br /> 2/29/2000 NP 1206 37 59 046 - <50 <0 5 <0 5 <0 5 <0 5 <2 50 470 <br /> 6(7/2000 NP 1255 3710 -049 <50 <0 5 <0 5 <0 5 <0 5 572 -- <br /> 9/26/2000 NP 1271 36 94 -016 <50 <0 5 <0 5 <0 5 <0 5 <2 50 0 50 <br /> 12/29/2000 P 1243 37 22 028 - <50 0 <0 500 <0 500 <0 500 0 656 17 F 6 7 <br /> 3/27/2001 P 1233 37 32 010 -- <50 0 <0 500 <0 500 <0 500 <0 500 305' 3 8 <br /> 6/20/2001 P 1247 3718 -014 -- <50 <0 50 <0 50 <0 50 <0 50 580' - <br /> 9/12/2001 P 1250 3715 003 <50 <0 50 <0 50 <0 50 <0 50 140 12 <br /> 12/19/2001 P 1235 3730 0 15 <50 <0 50 <0 50 <0 50 <0 50 7 2` 101 <br /> 3/14/2002 P 1242 $723 -007 -- <50 <0 50 <0 50 <0 50 <0 50 14' 0 66 <br /> K V5 6P ARCOW20931Quadedy�2 QTR OZ1Table 1_2_3)ds <br />