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i ! • <br /> Table 1 Page 7 of 14 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2093 r <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 <br /> Sampled (feet,MSL) (feet,TOC) in feet (feet,MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) <br /> ATR-6 4120192 11 56 - 3779 010 — — -- _ — _ <br /> (Cont) 4121192 — -- -- -- <50 <05 <05 <05 <0 5 <br /> 718192 1172 — 3763 — <50 <05 <0 5 <0 5 <0 5 -- <br /> 10/7/92 1182 -- 3753 -010 <50 <0 5 <0 5 <0 5 <0 5 -- <br /> 1118193 1104 -- 38 31 078 <50 <0 5 <0 5 <0 5 <0 5 -- <br /> 4114193 11 42 — 3793 -038 310 75 <0 5 <0 5 <0 5 - <br /> 8131193 — _ _ _ <br /> 10/27/93 11 84 — 3751 — <50 <0 5 <0 5 <0 5 <0 5 <br /> 2117194 — _ _ - <br /> 5120194 — _ — <br /> I Or7194 11 85 -- 3750 — <50 <0 5 <0 5 <0 5 <0 5 -- <br /> 12/16/94 11 54 -- 3781 0 31 <50 <05 <0 5 <05 <0 5 <br /> 2128195 11 65 -- 3770 -011 <50 <0 5 <0 5 <05 <05 — <br /> 4126195 — _ _ <br /> 7127195 _ _ <br /> 10/26/95 1218 — -S717 — <50 <0 5 <0 5 <0 5 <05 <br /> 2112196 11 57 -- 3778 0 61 <50 <0 5 <0 5 <0 5 <05 — <br /> 4118/96 1191 — 3744 -034 — — — _ _ <br /> 7118196 1201 -- 3734 -010 <50 <0 5 <05 <0 5 <05 10 <br /> 11/15/96 1263 -- 3672 -0 62 -- -- — — _ -- <br /> 3114197 — -- _ _ <br /> 6/4/97 1201 -- 3734 -- -- -- _ -- — -- <br /> 8111197 NP 1223 -- 3712 -022 <50 <05 <05 <05 <0 5 56 <br /> 11/17/97 P 1224 — 3711 -001 -- — — _ _ <br /> 3130198 NP 1169 -- 3766 055 <50 <05 <0 5 <0 5 <0 5 41 <br /> 5125198 1197 -- 3738 -028 -- -- _ _ _ -- <br /> ATR-7 3110189 49 65 — — -- — <200 <0 5 <0 5 <0 5 17 — <br /> 6/21/89 1190 -- 3775 -- <50 1 <0 3 0 6 0 5 -- <br /> 9118189 11 98 -- 37 67 -008 <50 0 4 <0 3 <03 1 1 <br /> 12/27/89 1194 — 3771 004 90 10 09 27 7 9 <br /> 4/18190 1201 -- 37 64 -007 <50 61 2 6 21 5 8 -- <br /> 10/16/90 -- — -- -- <50 <0 5 <0 5 <05 <0 5 -- <br /> 10/19/90 1220 -- 3745 -- _ _ — — _ _ <br /> 1110/91 -- -- — — <50 6 <0 5 1 8 41 -- <br /> 4110l91 <br /> 7110191 <br /> 7G600-026-001/GW Tables <br />