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TabldT Paof 30 <br /> 9 <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/l <br /> E 2 8/26/1988 2 86 <br /> 11/28/1988 -- 79 4 5 12 <br /> 2/27/1989 - -- 300 78 9 9 476 <br /> 5/30/1989 - -- 638 103 194 75 3 <br /> 8/22/1989 - -- - 85 <25 <25 <25 <br /> 12/4/1989 -- 102 82 <0 6 53 <br /> 1/4/1990 V 90 -1504 - - <br /> 2/1/1990 1770 -- -1484 020 <br /> 2/15/1990 1767 -1481 003 - <br /> 2/22/1990 1844 -1558 077 -- <br /> 3/8/1990 1740 1454 104 108 245 156 339 <br /> 4/5/1990 1769 -1483 -029 - <br /> 4/19/1990 1772 -1486 -003 - <br /> 5/10/1990 1803 -1517 -031 - <br /> 5/24/1990 1796 - -1510 0 07 - <br /> 6/5/1990 1795 -1509 0 01 -- _ <br /> 6/18/1990 1886 -- -1600 -091 63 6 8 63 8 8 <br /> 7/12/1990 1876 - -1590 010 _ <br /> 8/16/1990 1905 - -1619 -029 <br /> 9/17/1990 1940 -- -1654 0 35 - _ _ <br /> 9/19/1990 1940 - 16 54 000 2000 10 19 80 200 <br /> 10/11/1990 1949 -- 1663 -009 - <br /> 12/6/1990 1934 -1648 015 - <br /> 2/11/1991 1900 -- -1614 034 - <br /> 2/25/1991 18 93 -- -1607 0 07 <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 2130 -1844 -055 2,200 55 c2 5 3 3 6 <br /> 1/22/1992 1947 1661 1 83 2,400 41 14 22 47 <br /> 4/22/1992 1862 1576 0 85 1,200 37 22 3 7 6 <br /> 7/29/1992 2007 -1721 -145 1,800 45 4 5 9 3 47 <br /> 10/29/1992 2062 -- -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 1 80 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 16 80 -1394 - 1 000 13 8 7 6 <br />