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Table Paged 30 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service 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 X&nes MTBE DO <br /> Sampled (feet,MSL) (feet,TOC) in feet (feet,MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) mg/I <br /> PR 1 11/10/1993 15 94 - 1514 -046 <50 <0 5 <0 5 <0 5 <0 5 <br /> (cont) 3/21/1994 1462 -1382 1 32 <10 <0 3 <0 3 <0 3 <0 5 <br /> 6/27/1994 1498 -- -1418 -0 36 <10 <0 3 <0 3 <0 3 <0 5 <br /> 9/29/1994 1609 -1529 -1 11 <50 <0 5 <0 5 <0 5 <0 5 <br /> 12/8/1994 1566 - -1486 0 43 <50 <0 5 <0 5 <0 5 <0 5 <br /> 3/8/1995 1347 -1267 219 <50 <0 5 <0 5 <0 5 <0 5 <br /> 6/1/1995 1194 -11 14 1 53 <50 <0 5 <0 5 <0 5 <0 5 <br /> 9/11/1995 1382 -1302 -1 88 <50 <0 5 <0 5 <0 5 <0 5 <br /> 12/5/1995 1422 -1342 -040 <br /> 3/18/1996 1005 - 925 417 <50 <0 5 <0 5 <0 5 <0 5 <br /> 6/18/1995 1023 -943 -018 - <br /> 9/25/1996 12 55 - -1175 -232 <50 <0 5 <0 5 <0 5 <0 5 <5 <br /> 12/4/1996 1205 - -1125 0 50 - - <br /> 3/19/1997 NP 804 -- -724 401 <50 <0 5 <0 5 <0 5 <0 5 - 0 3 <br /> 6/5/1997 NP 927 -- -847 -1 23 <50 <0 5 <0 5 <0 5 <0 5 <5 0 9 <br /> 8/19/1997 NP 1076 -- -996 -1 49 <50 <0 5 <0 5 <0 5 <0 5 <5 0 3 <br /> 11/25/1997 NP 1109 -- -1029 -033 <50 <0 5 <0 5 <0 5 <0 5 <5 <br /> 3/19/1998 P 458 -- -378 651 <50 <0 5 <0 5 <0 5 <0 5 <5 2 1 <br /> 6/24/1998 Well Box Inaccessable -- - - - <br /> 9/10/1998 NP 848 -- 7 68 - <50 <0 5 <0 5 <0 5 <0 5 <5 <br /> 12/17/1998 NP 847 -- 7 67 001 <50 <0 5 <0 5 <0 5 <0 5 <5 <br /> 3/10/1999 P 6 32 - 552 215 <50 <0 5 <0 5 <0 5 <0 5 <5 47 <br /> 6/22/1999 NP 813 -- -733 -181 <50 <0 5 <0 5 <0 5 <0 5 <5 2 9 <br /> 9/13/1999 NP 984 -904 -171 <50 <0 5 <0 5 <0 5 <0 5 <5 2 5 <br /> 12/16/1999 NP 973 - -893 Oil <50 <0 5 <0 5 <0 5 <0 5 <2 5 4 7 <br /> 3/23/2000 P 520 -440 453 <50 <0 5 <0 5 <0 5 <0 5 <2 5 2 6 <br /> 6/21/2000 P 6 91 -611 171 <50 <0 5 <0 5 <0 5 <0 5 <2 5 4 6 <br /> 9/13/2000 NP 912 - -832 221 <50 <0 5 <0 5 <0 5 <0 5 <2 5 1 32 <br /> 12/15/2000 P 8 63 — -783 0 49 <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 1 06 <br /> PR-2 8/26/1988 0 65 -- - - <0 5 2 <0 5 3 <br /> 11/28/1988 - - <0 5 <0 5 <0 5 <0 5 <br /> 2/27/1989 - <0 5 <0 5 <0 5 <0 5 <br /> 5/30/1989 - - - <br /> 8/22/1989 - -- - <0 5 <0 5 <0 5 <0 5 <br /> 12/4/1989 -- -- - - <br /> 1/4/1990 1574 -1509 - <br />