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• • ! . <br /> Table 1. Summary of Groundwater Monitoring Data: Water Elevations and Analyses <br /> ARCO Facility 2133, Stockton, California <br /> Top-ol-casing Depth-to- Product Water-level Change since Concentrations in pL <br /> Well number elevation, feet %eater, thickness, elevation, last measurement, Total <br /> and date above mean sea level m feet in feet in feet(a) in feet Benzene Toluene Eth (benzene Xylenes TPI I-G M1 BE <br /> 1127193 1542 -- -1445 32 31 <1 1 9 l 8 960 <br /> 4129193 13 56 -- -1259 1 86 20 <4 2 22 1 7 360 -_ <br /> 8/5/93 1528 -- -1431 -1 72 12 <0 5 23 1 6 320 - <br /> 11/10/93 15 62 -- -1465 -034 12 24 1 7 14 310 <br /> 3121194 1500 -1403 062 09 1 1 1 0 1 3 220 <br /> 6/27/94 1479 -- -1382 021 24 24 46 20 400 <br /> 9/29194 1576 -- -1479 -097 46 <0 5 89 <0 5 670 -_ <br /> 12/8/94 15 37 -- -1440 039 3 5 1 1 1 24 190 -_ <br /> 3/8/95 1293 -- -11 96 244 13 <0 5 29 <0 5 200 <br /> 6/1/95 1146 -- -1049 147 26 1 85 15 650 <br /> 9111195 1366 -- -1269 -22 74 <0 5 2 1 <0 5 370 <br /> 12/5195 1400 -- -13 03 -034 28 <0 5 1 1 <0 5 150 <br /> 3118196 905 -- -808 495 19 <0 5 93 13 2000 <br /> 6118196 980 -- -8 83 -075 41 47 18 49 2300 <5 <br /> 9125196 1228 -- -11 31 -248 31 <1 14 1 4 2000 <10 <br /> E-9 1 56 <br /> 8/26/88 -- -- -- -- 4700 4900 1400 5100 <br /> 11/28/88 -- -- 780 1100 400 1280 -- -- <br /> 2/27/89 -- -- -- -- 900 100 260 1700 <br /> 5130189 -- <br /> 8/22/89 -- -- 690 <500 <500 860 <br /> 1214189 <br /> 1/4/90 1664 -1508 -- <br /> 211/90 <br /> -2/1/90 1644 -1488 020 -- <br /> 2/15190 1639 -- -1483 005 <br /> 2122190 1627 -- -1471 0 12 -- _ -- -- -- -- <br /> 3/8/90 16 19 -- -1463 008 490 70 360 1440 -- -- <br /> 4/5/90 1648 -- -1492 -029 ._ -- -- -- <br /> 4/19/90 1649 -- -1493 -001 -- <br /> 5/10/90 1686 -- -1530 -037 -- __ -- -- -- <br /> 5/24/90 1677 -- -1521 009 -- <br /> 615/90 1670 -- -15 14 007 <br /> 33161IA[if I W133ti1 116 XI 5 <br />