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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 Elevation Elevation TPI-Ig Benzene Toluene benzene (total) MtBE DO <br /> Number Sampled (ft,MSL) (ft,TOC) (ft) (ft,MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg1L) <br /> E-9 8/26188 156 4,700 4,900 1,400 5,100 <br /> 11/28/88 - 780 1,100 400 1,280 <br /> 2127189 - 900 100 260 1,700 -- <br /> 5/30/89 - <br /> 8/22/89 -- 690 <500 <500 860 <br /> 12/4/89 -- -- -- <br /> 114/90 1664 - -1508 -- <br /> 2/1/90 <br /> 2/1/90 16 44 -1488 020 - - <br /> 2115190 1639 -1483 005 <br /> 2122190 1627 -1471 012 -- -- -- -- <br /> 318/90 1619 1463 008 - 490 70 360 1,440 <br /> 4/5190 1648 - -1492 029 -- -- - -- - -- <br /> 4/19/90 1649 -1493 001 - - <br /> 5/10/90 1686 -- -1530 037 - <br /> 5/24190 1677 -- -1521 009 - - <br /> 615/90 1670 -1514 007 -- <br /> 6/18190 1747 1591 077 <br /> 7/12190 1753 -- 1597 006 -- <br /> 8/16/90 1782 -1626 029 - <br /> 9117190 1815 -1659 033 -- - -- -- -- <br /> 9/19190 1815 -1659 000 24,000 130 140 80 6,000 <br /> 10/11/90 1824 -1668 -009 -- -- -- -- -- <br /> 12/6/90 1811 -1655 013 -- -- -- -- -- - - <br /> 2/12/91 1780 -- -1624 031 18,000 2,600 130 610 4,700 <br /> 2125/91 1876 -1720 096 -- -- - -- - <br /> 4123/91 1689 -1533 1 87 - - <br /> 7115191 dry -- -- - -- - <br /> 10/8191 dry - <br /> 1122/92 1824 -1668 -- -- -- -- -- -- <br /> 4122192 1745 -1589 079 3,600 170 10 50 120 <br /> 7129192 dry -- -- -- - -- -- - <br /> 10/29/92 1719 -1563 -- 8,900 480 32 440 1,100 <br /> 1/27/93 1610 1454 1 09 12,000 390 25 310 730 <br /> 4/29/93 1419 1263 191 12,000 270 <98 150 380 <br /> Prolects/ARCO/2133/Reportsrrables/gwtables2133 As 16 <br />