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Tab Paoof 31 <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 4 12/17/98 929 -- -6 96 -009 - -- - -- <br /> (cont) 3110199 NP 707 -474 222 <50 <0 50 <0 50 <0 50 <0 50 <5 0 3 0 <br /> 6122199 -- 902 - -669 -195 -- - - 0 6 <br /> 9113199 NP 1077 -844 -175 107 <0 50 <0 50 0 738 <0 50 8 53 2 3 <br /> 12/15/99 -- 1065 -- -832 012 -- -- -- - 1 1 <br /> 3123100 NP 597 -- -364 468 <50 <0 50 <0 50 <0 50 <0 50 <2 50 1 7 <br /> 6121100 8 21 -- -5 88 -224 - -- -- - 0 88 <br /> 9113100 NP 1000 -- -767 -179 <50 <0 50 <0 50 <0 50 <0 50 <2 50 1 50 <br /> 12/15/00 -- 948 -- -715 0 52 - -- - - 0 71 <br /> 311101 P 740 — -607 208 777 224 <5 00 351 108 603 2 8 <br /> E 5 8126188 245 -- -- -- - -- 2,690 390 270 870 <br /> 11/28/88 - -- -- - - 580 140 110 420 <br /> 2/27/89 -- -- -- - 1,770 200 200 1,400 <br /> 5130/89 -- -- -- -- - 2,430 36 260 1,670 <br /> 8122189 - -- -- - - 3,110 130 240 1,720 <br /> 1214189 -- -- 600 40 120 1,030 <br /> 1/4/90 1751 - -1506 -- - <br /> 211/90 1732 -- -1487 019 -- - - - <br /> 2/15/90 1729 - -1484 003 <br /> 2122/90 1907 -- -1662 178 - - - - <br /> 318/90 1703 -1458 204 272 394 978 532 <br /> 415190 1731 - -1486 -028 <br /> 4/19190 1726 -1481 005 - - <br /> 5/f 0190 1765 -1520 -039 <br /> 5/24/90 17 61 -1516 004 <br /> 6/5/90 1757 - -1512 004 - - <br /> 6/19/90 1849 -- -1604 -092 2,150 30 200 780 <br /> 7112/90 1837 - -1592 012 - - - - <br /> 8/16190 1865 -- -1620 -028 - - - <br /> 9/17/90 1901 - -1656 -036 - - - - - <br /> 9/18/90 1901 -- -1656 000 30,000 7,400 210 860 8,300 <br /> 10/11/90 1911 -- -1666 -010 -- - - <br /> 1216/90 1895 1650 016 -- -- -- - <br /> 2/14/91 1862 -- -1617 0 33 18,000 6,300 120 560 4,300 <br /> 2125191 1859 -1614 003 - - - - - <br /> 4123/91 1787 -1542 072 10,000 8,400 <0 50 270 680 <br /> 7/15191 Dry - -- -- - - - - -- <br />