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• Tab Pa00f 31 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2133 <br /> 2908 Benjamin Holt Dr,Stockton,California <br /> Well Depth Product Groundwater Groundwater Total <br /> Date Elevation to Water thickness, Elevation Elevation change TPH-G Benzene Toluene Ethylbenzene Xylenes MtBE DO <br /> Sampled (feet,MSL) (feel,TOC) in feet (feet,MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) mg/I <br /> E-4 7/12/90 1825 -- -1592 004 -- -- <br /> (cont) 8/16190 1855 -- -1622 -030 <br /> 9/17/90 1890 -- -1657 -0 35 - -- -- - - <br /> 9/19/90 18 90 - -1657 000 4,400 33 37 160 430 <br /> 10/11/90 1898 -1665 -008 -- - - - <br /> 12/6/90 1882 -- -1649 016 -- -- - <br /> 2/12191 1848 - -1615 034 3,200 750 9 73 270 <br /> 2125191 1843 - -1610 005 -- -- - <br /> 4/23/91 1762 -- -1529 0 81 - <br /> 7/16/91 2030 -- -1797 -268 - - <br /> 10/8/91 20 90 -- -1857 -060 - - -- - - <br /> 1/22192 1901 -1668 189 8,500 1,100 140 10 220 <br /> 4/22192 16 05 -- -1572 0 96 6,300 730 12 110 200 <br /> 7/29/92 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 3 27 10,000 470 26 130 270 <br /> 4/29/93 1494 — -1261 1 78 14,000 1,300 22 280 520 <br /> 8/5/93 1663 -- -1430 -169 9,400 900 X20 160 240 <br /> 11/10193 1692 -- -1459 -0 29 4,400 290 <20 67 130 <br /> 3/21194 1639 -- -1406 0 53 5,400 340 24 110 220 <br /> 6/27194 1614 -- -1381 025 7,800 790 11 170 470 <br /> 9129194 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 /> 3/8/95 1419 -1186 246 7,900 490 5 6 130 190 <br /> 6/1/95 1274 -- -1041 145 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 15 23 -- -1290 -027 -- -- - <br /> 3/18/96 1010 -- -7 77 513 4,700 530 35 250 350 <br /> 6/18/96 1103 -- -870 -093 - -- - - - <br /> 9/25/96 1347 -- -1114 -244 7,600 890 <10 380 190 <5 <br /> 12/4196 12 94 -- -1061 053 -- -- -- - <br /> 3/19/97 NP 743 -- -510 5 51 1,600 120 84 38 <5 0 2 <br /> 6/5197 1008 -- -775 -265 -- - - - - - 01 <br /> 8/19/97 NP 1157 - -924 -149 1,800 B3 7 8 63 7 6 110 0 1 <br /> 11/25/97 P 1127 -- -894 0 30 -- - -- - - - <br /> 3/19/98 NP 547 -314 580 110 36 <0 50 <0 50 <0 50 14 3 6 <br /> 6/24/98 763 -520 -206 -- - - -- - <br /> 9/10/98 NP 920 -- -687 -167 972 3 35 <0 50 <0 50 <0 50 8 15 - <br />