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Table 2 <br /> Groundwater Elevation and Analytical Data(ARCO) <br /> ARCO Service Station 42133 <br /> 2908 Benjamin Hall Drive <br /> Stockton California <br /> Well Depth Product Groundwater Groundwater Ethyl Xylenes <br /> well Date Elevation to Water Thickness Elevation Elevation TPHg Benzene Toluene benzene (total) MtBE DO <br /> Number Sampled ift MSL (it,TOC) (ft) (ft MSL Change(ft) (u j (ug0) (ugh) (U914 <br /> (ltgn) (ug") (m ) <br /> E 11 4/19M990 990 18 25 — 1483 -008 — — -- -- — — <br /> (cont) 5!1011990 1855 — 1513 -030 -- — — — — — — <br /> 5/2411990 1850 -- 1508 0 95 — <br /> 6/511990 1847 — 1505 003 — — -- — — _ <br /> 611911990 1920 — 1578 073 — 135 166 20 111 — -- <br /> 711211990 1930 — 1588 010 — — — — — — <br /> 811611990 1965 — 1623 -035 — <br /> 9/1711990 1994 — 1652 029 -- — — — — — — <br /> 9/19/1990 1994 — 1652 000 680 90 8 2 14 110 — — <br /> 1011111990 2003 1661 0 09 — -- — — _ <br /> 12!611990 1897 — 1555 106 — — — — <br /> 2/1211991 1953 loll 056 1 400 120 13 21 300 — — <br /> 2/2511991 19 40 — 1598 013 — — — -- — <br /> 412311991 1856 — 1514 0 84 400 22 -05 1 7 11 — — <br /> 7/16/91 2219 -- 1877 363 4 100 420 35 46 360 — — <br /> 10/811991 2173 — 1831 046 5 700 410 19 62 380 — <br /> 112211992 20 GO — 1658 173 6200 220 64 <14 120 — -- <br /> 412211 W2 1908 — 1566 092 141000 570 57 150 510 — — <br /> 712911992 2064 — 1722 1 56 21 000 790 36 28D 830 — <br /> 1012911992 2100 1758 -036 6 60D 390 <20 68 150 — — <br /> 112711993 1768 — 1426 332 51 000 830 180 390 950 — — <br /> 4129l1993 1591 -- 1249 177 28 000 530 <100 156 730 — — <br /> 81511993 1753 — 1411 1 fit 54 000 540 <130 200 550 — <br /> 11/1011993 1756 — 1414 -003 30 000 290 120 95 28D — -- <br /> I 1ProjectslARCg12133/Tableslgwtables2133 xis 30 of 56 <br />