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TabV Pag*540 <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 Xylenes MTBE DO <br /> Sampled (feet,MSL) (feet,TOC) in feet (feet,MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) mg/I <br /> E 2 8/26/1988 2 86 --11/28/1988 -- 79 4 5 12 <br /> 2/27/1989 -- 300 7 8 99 476 <br /> 5/30/1989 638 103 194 75 3 <br /> 8/22/1989 -- 85 <25 <25 <25 <br /> 12/4/1989 -- -- 102 8 2 <0 6 53 <br /> 1/4/1990 1790 -1504 <br /> 2/1/1990 1770 -- -1484 0 20 - <br /> 2/15/1990 1767 -- -1481 003 - <br /> 2/22/1990 1844 -1558 -0 77 - - <br /> 3/8/1990 V 40 -1454 1 04 108 245 156 33 9 <br /> 4/5/1990 1769 -- -1483 -0 29 - - <br /> 4/19/1990 1772 -- -1486 -0 03 <br /> 5/10/1990 1803 -- -1517 -0 31 <br /> 5/24/1990 1796 -- -1510 0 07 <br /> 6/5/1990 1795 - -1509 0 01 - - - <br /> 6/18/1990 1886 -- -1600 -091 636 8 6 3 8 8 <br /> 7/12!1990 1876 -- -1690 0 10 - - <br /> 8/16/1990 1905 -1619 029 - <br /> 9/17/1990 1940 -- -1654 -035 -- <br /> 9/19/1990 1940 -1654 0 00 2,000 10 19 80 200 <br /> 10/11/1990 1949 -16 63 -0 09 - - <br /> 12/6/1990 1934 -1648 0 15 <br /> 2/11/1991 1900 -1614 034 - <br /> 2/25/1991 1893 -- 1607 007 - - - <br /> 4/23/1991 1805 -- 1519 0 88 1 300 19 <0 5 1 2 1 8 <br /> 7/15/1991 2075 -1789 -270 1,600 62 20 7 3 43 <br /> 10/8/1991 21 30 -1844 -055 2,200 55 <2 5 33 6 <br /> 1/22/1992 1947 -- -1661 183 2,400 41 14 22 47 <br /> 4/22/1992 18 62 - -1576 085 1,200 37 2 2 3 7 6 <br /> 7/29/1992 20 07 -1721 -1 45 1,800 45 4 5 9 3 4 7 <br /> 10/29/1992 20 52 - -1766 -045 540 12 <0 5 25 1 4 <br /> 1/27/1993 1723 -1437 329 1,900 47 9 4 75 7 0 <br /> 4/29/1993 1543 - -1257 180 3,400 110 15 15 29 <br /> 8/5/1993 1710 -1424 -1 67 2,300 45 <5 12 5 <br /> 11/10/1993 -- -- - -- -- - - <br /> 3/21/1994 1680 -- 1394 1,000 13 8 7 6 <br />