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i <br /> • • i <br /> Table 1 Page 22 of 32 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Seance Station#2133 <br /> 2908 Benjamin Holt Dr,Stockton,California <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) mg/l <br /> 6/27194 1498 -- -1418 -0 36 <10 <0 3 <03 <0 3 <0 5 <br /> PR-1 9129194 1609 -- -1529 -1 11 <50 <0 5 <0 5 <0 5 <0 5 - <br /> (cont) 1218/94 1566 -- -1486 043 <50 <0 5 <0 5 <0 5 <0 5 - <br /> 318/95 1347 -- -1267 219 <50 <0 5 <0 5 <0 5 <0 5 - -- <br /> 6/1/95 1194 -- -11 14 153 <50 <0 5 <0 5 <0 5 <0 5 <br /> 9/11/95 1382 -- -1302 -188 <50 <0 5 <0 5 <0 5 <0 5 <br /> 12/5195 1422 -- -1342 -040 -- -- -- <br /> 3/18/96 i 0 05 -- -925 417 <50 <0 5 <0 5 <0 5 <0 5 <br /> 6/18/95 1023 -943 018 -- -- - -- -- - <br /> 9/25/96 1255 -- -1175 -232 <50 <0 5 <0 5 <0 5 <0 5 <5 <br /> 1214196 1205 -- -1125 0 50 -- -- -- -- -- -- -- <br /> 3/19197 NP 804 -- -724 4 01 <50 <0 5 <0 5 <0 5 <0 5 - 0 3 <br /> 6/5/97 NP 9 27 -- -847 -123 <50 <0 5 <0 5 <0 5 <0 5 <5 0 9 <br /> 8119/97 NP 1076 -- -9 96 -149 <50 <0 5 <0 5 <0 5 <0 5 <5 03 <br /> 11/25/97 NP 1109 -- -1029 -033 <50 <0 5 <0 5 <0 5 <0 5 <5 -- <br /> 3/19/98 P 4 58 -- -378 6 51 <50 <0 5 <0 5 <0 5 <0 5 <5 2 1 <br /> 6/24198 Well Box Inacoessable -- -- -- -- - - <br /> 9110198 NP 848 -• -7 68 -- <50 <0 5 <0 5 <0 5 <0 5 <5 - <br /> 12/17/98 NP 847 -- -767 001 <50 <0 5 <0 5 <0 5 <0 5 <5 -- <br /> 3/10/99 P 632 - -552 215 <50 <0 5 <0 5 <0 5 <0 5 <5 4 7 <br /> 6122/99 NP 813 — -7 33 -1 91 <50 <0 5 <0 5 <0 5 <0 5 <5 2 9 <br /> 9113199 NP 984 -- -904 -171 <50 <0 5 <0 5 <0 5 <0 5 <5 2 5 <br /> 12/16/99 NP 973 -893 Oil <50 <0 5 <0 5 <0 5 <0 5 <2 5 4 7 <br /> 3123100 P 520 — -440 453 <50 <0 5 <0 5 <0 5 <0 5 <2 5 2 6 <br /> 6121100 P 691 -- -611 -171 <50 <0 5 <0 5 <0 5 <0 5 <2 5 4 6 <br /> 9113100 NP 912 -- -632 -2 21 <50 <0 5 <0 5 <0 5 <0 5 <2 5 132 <br /> PR-2 8126188 0 65 -- -- -- -- <0 5 2 <0 5 3 - -- <br /> 11/28/88 -- <0 5 <0 5 <0 5 <0 5 - <br /> 2/27189 -- -- -- -- - <0 5 <0 5 <0 5 <0 5 <br /> 5/30/89 -- -- <br /> 8/22/89 -- -- -- - <0 5 <0 5 <0 5 <0 5 <br /> 1214/89 -- -- -- - -- - -- <br /> 1/4/90 1574 -- -1509 -- <br /> 2/l/90 1552 -1487 022 <br /> 077 41 930 803/GW Tables <br />