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. 0 <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station #2133 <br /> 2908 Benjamin Halt 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 (ft,MSL) (ft,TOC) (ft) (ft,MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L) <br /> E-4 2/25/91 1843 -1610 005 -- <br /> (cont) 4/23/91 1762 -1529 081 - - <br /> 7/16/91 2030 -1797 268 - <br /> 10/8/91 2090 -1857 060 -- -- -- -- -- <br /> 1/22/92 1901 -1668 1 89 8,500 1,100 140 10 220 <br /> 4/22192 1805 -1572 096 6,300 730 12 110 200 <br /> 7129/92 1963 -- -1730 158 7,700 1,000 14 130 310 <br /> 10/29/92 1999 1766 036 5,600 1,300 16 130 180 <br /> 1/27/93 1672 -1439 327 10,000 470 26 130 270 <br /> 4/29/93 1494 -12 61 1 78 14,000 1,300 22 280 520 <br /> 8/5193 1663 -1430 -169 9,400 900 <20 160 240 <br /> 11/10/93 1692 -1459 0 29 4,400 290 <20 67 130 - - <br /> 3/21/94 1639 - -1406 053 5,400 340 24 110 220 - <br /> 6/27/94 1614 -1381 0 25 7,800 790 11 170 470 <br /> 9/29/94 1706 -- 1473 092 1,600 130 <0 5 33 41 - <br /> 12/8/94 1665 -1432 0 41 5,200 940 88 170 380 <br /> 3/8195 1419 -1186 246 7,900 490 5 6 130 190 <br /> 6/1195 1274 -- -1041 1 45 15,000 1,000 10 360 380 - - <br /> 9/11/95 1496 -1263 -222 10,000 1,000 <10 350 320 <br /> 12/5/95 1523 -1290 -027 -- -- - - -- <br /> 3/18/96 1010 -777 513 4,700 530 35 250 350 -- <br /> 6/18/96 11 03 -870 -093 -- -- - -- -- -- <br /> 9/25/96 1347 -11 14 -244 7,600 890 <10 380 190 <5 <br /> 1214196 1294 -1061 0 53 -- -- -- - - -- -- <br /> 3/19/97 NP 743 -510 551 1,600 120 84 38 <5 02 <br /> 6/5197 1008 -775 -265 -- -- -- -- -- -- 01 <br /> 8/19/97 NP 11 57 -924 149 1,800 83 7 8 63 76 110 01 <br /> 11/25/97 P 1127 -- -894 030 -- -- -- - -- -- -- <br /> 3/19198 NP 547 -314 580 110 36 <0 50 <0 50 <0 50 14 36 <br /> 6/24/96 753 520 -206 -- -- - - -- -- -- <br /> 9110/98 NP 920 -687 -167 972 335 <0 50 <0 50 <0 50 815 - <br /> 12/17/98 929 -696 009 -- -- -- -- -- -- -- <br /> 3/10199 NP 707 -474 222 <50 <050 <050 <0 50 <050 <50 30 <br /> 6/22199 902 -669 -195 -- -- -- -- -- -- 0 6 <br /> Projects/ARCO/2133/ReportslTables/gwtables2133 As 6 <br />