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Table 2 <br /> Groundwater Elevation and Analytical Data(ARCO) <br /> ARCO Service Station 112133 <br /> 2908 Benjamin Holt Drrve <br /> Stockton California <br /> Well Depth Product Groundwater Groundwater Ethyl- Xylenes <br /> well Date Elevation to Water Thickness Elevation Elevation TPH9 Benzene Toluene benzene (total) MTBE DO <br /> Number Sampled (ft,MSL) (ft,TOC) (ft) (ft,MSL) Change(n) (ugA) (ugA) (ugA) (ugA) (UgA) (ugly) (mg1L) <br /> E-5 8126188 245 2 690 390 270 870 <br /> 11/28/88 580 140 110 420 <br /> 2/27189 - 1770 200 200 1400 <br /> 5130189 2 430 36 260 1 670 <br /> 8122189 3110 130 240 1720 » <br /> 1214/89 600 40 120 1030 » <br /> 114190 1751 - 1506 - - - <br /> 211/90 1732 1487 019 - <br /> 2115190 1729 1484 003 <br /> 2122190 1907 1662 1 78 - <br /> 318190 1703 1458 2 04 272 394 978 532 <br /> 415190 17 31 1486 028 -- <br /> 4/19/90 1726 1481 005 - <br /> 5/10190 1765 1520 039 - <br /> 5/24/90 1761 1516 0 04 <br /> 615190 1757 1512 004 - <br /> 6/19/90 1849 16 04 092 2 150 30 200 780 <br /> 7112190 18 37 - 1592 012 - <br /> 8/16/90 1865 - 1620 -028 <br /> 9/17190 1901 1656 -036 - <br /> 9/18/90 1901 1656 0 00 30,000 7 400 210 860 8 300 <br /> 10/11/90 1911 16 66 -010 -- <br /> 12/6l90 1895 1650 016 <br /> 2114191 1862 1617 033 18 000 6 300 120 560 4 300 <br /> 2125191 1859 -1614 003 <br /> 4123191 1787 -1542 072 10,000 8,400 <0 50 270 680 <br /> 7/15/91 dry - <br /> 10/8/91 dry - - <br /> 1/22192 1923 1678 <br /> 4/22192 1831 1586 092 28,000 4 300 130 560 1 700 - <br /> 7/29192 1960 - 1715 129 - - <br /> 10/29/92 dry -- - » <br /> 1/27/93 16 90 1445 26 000 4 000 110 470 800 <br /> 4/29193 1508 1263 1 82 41,000 6 300 110 920 2200 <br /> 815193 1680 1435 1 72 26,000 4 700 c50 560 560 <br /> 11/10/93 1719 1474 039 19 000 2 500 c50 380 690 <br /> 1%ProlectslARCO\21331Tableslgwtables2133 Page 7 of 36 <br />