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• i i <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station #2133 <br /> 2908 Benjamin Holt Drive <br /> Stockton, California <br /> Well Depth Product Groundwater Groundwater Ethyl- Xylenes <br /> Well Date Elevation to Water Thickness Elevatlon Elevation TPHg Benzene Toluene benzene (total) MtBE DO <br /> Number Sampled (ft,MSL) (ft,TOC) ft ft,MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L) <br /> PR 1 8/22/2001 Well inaccessible <br /> (cont) 12/5/2001 Well inaccessible <br /> 3/11/2002 Well inaccessible <br /> 6/6/2002 P 783 -703 - <50 <0 50 <0 50 <0 50 <0 50 <2 5 018 <br /> 9/24/2002 P 979 - -899 -196 <50 <0 50 <0 50 <0 50 <0 50 <2 5 035 <br /> 12/17/2002 P 846 -766 133 <50 <050 <0 50 <0 50 <0 50 <2 0 <br /> 3/18/2003 P 787 — -707 059 <50 <0 50 <0 50 <0 50 <0 50 <2 5 158 <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 /> 2/1/1990 <br /> -2/1/1990 1552 -- -1487 022 <br /> 2/15/1990 1549 -1484 003 <br /> 2/22/1990 1630 -- -1565 -081 _ <br /> 3/8/1990 1528 - -1463 1 02 <0 5 <0 5 <0 5 <0 5 <br /> 4/5/1990 1542 -- 1477 -014 - _ <br /> 4/19/1990 1650 -- -1585 108 <br /> 5/10/1990 1589 - -1524 061 <br /> 5/24/1990 1588 -1523 001 <br /> 6/5/1990 <br /> 6/18/1990 1642 - -1577 -- <br /> 7/12/1990 16 63 -- -1598 -021 <br /> 8/16/1990 1732 - -1667 -069 <br /> 9/17/1990 1765 - -1700 -033 - -- <br /> 9/19/1990 1765 -1700 000 <50 <0 5 <0 5 <0 5 <0 5 <br /> 10/11/1990 1729 -1664 036 -- - <br /> 12/6/1990 1714 - -1649 015 -- _- <br /> 2/11/1991 1682 -1617 032 <50 <0 5 <0 5 <0 5 <0 5 <br /> 2/25/1991 1678 — -1613 004 -- -- - <br /> 4/23/1991 1584 - 1519 094 -- <br /> Pro)ecWARCO/2133/Reports/Tables/gwtables2133 As 27 <br />