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• • i . <br /> Table 1. Summary of Groundwater Monitoring Data- Water Elevations and Analyses <br /> ARCO Facility 2133, Stockton, California <br /> Top-of-casing Depth-to- Product Water-level Change since Concentrations in 1 /L <br /> Well number elevation, feet water, thickness, elevation, last measurement, Total <br /> and date above mean sea level in feet in feet in feet(a) in feet Benzene Toluene Eth lbenzene Xylenes TPH-G MTBE <br /> 1127/93 1672 -- -1439 327 470 26 130 270 10000 -- <br /> 4129/93 1494 -1261 1 78 1300 22 280 520 14000 -- <br /> 8/5/93 1663 -- -1430 -169 900 <20 160 240 9400 -- <br /> 11/10/93 1692 -- -1459 -0 29 290 <20 67 130 4400 -- <br /> 3/21/94 1639 -- -1406 053 340 24 110 220 5400 -- <br /> 6/27/94 16 14 -- -13 81 025 790 11 170 470 7800 -- <br /> 9/29/94 1706 -- -1473 -092 130 <0 5 33 41 1600 -- <br /> 12/8/94 1665 -1432 041 940 88 170 380 5200 -- <br /> 3/8/95 14 19 -11 86 246 490 5 6 130 190 7900 -- <br /> 6/1/95 1274 -- -1041 145 1000 10 360 380 15000 -- <br /> 9111/95 1496 -- -12 63 -222 1000 <10 350 320 10000 -- <br /> 12/5/95 1523 -- -1290 -027 <br /> 3/18/96 10 10 -- -777 5 13 530 35 250 350 4700 -- <br /> 6/18196 11 03 -- -870 -093 <br /> 9/25196 1347 -- -11 14 -244 890 <10 380 190 7600 <5 <br /> 12/4/96 12 94 -- -1061 053 <br /> >E-5 245 <br /> 8/26/88 -- -- -- -- 2690 390 270 870 -- -- <br /> 11/28/88 -- -- -- -- 580 140 110 420 -- -- <br /> 2/27/89 -- -- -- -- 1770 200 200 1400 -- -- <br /> 5/30/89 -- 2430 36 260 1670 -- -- <br /> 8/22/89 -- -- -- -- 3110 130 240 1720 -- <br /> 12/4/89 -- -- -- 600 40 120 1030 -- -- <br /> 1/4/90 1751 -- -1506 <br /> 2/l/90 1732 -- -1487 0 19 <br /> 2115190 1729 -- -14 84 0 03 <br /> 2/22/90 1907 -- -1662 -178 <br /> 3/8/90 1703 -- -1458 204 272 394 978 532 -- -- <br /> 4/5190 1731 -- -14 86 -028 <br /> 4/19/90 1726 -- -14 81 005 <br /> 5/10/90 1765 -1520 -039 <br /> 5/24190 1761 -- -15 16 0 04 <br /> 6/5/90 1757 -- -1512 004 <br /> 33161TABLES12133DEC6 XLS <br />