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• Table Pageof 30 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station 42133 <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) (feet,TOC) In feet (feet,MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) mg/l <br /> E 9 4/29/1993 1419 -- -1263 191 12,000 270 <98 150 380 <br /> (cont) 8/5/1993 1583 -1427 164 16,000 370 22 220 460 <br /> 11/10/1993 1618 -- 1462 -035 12,000 210 21 200 390 <br /> 3/21/1994 i5 51 -- -1395 0 67 6,300 170 24 200 320 <br /> 6/27/1994 1534 -1378 017 10,000 780 18 660 980 <br /> 9/29/1994 1636 -- -1480 -102 8,800 430 14 470 630 <br />! 12/8/1994 1597 1441 0 39 7,800 450 20 610 810 <br /> 3/8/1995 1354 -- -11 98 2 43 8,600 100 <20 230 260 <br /> 6/1/1995 1202 -1046 1 52 24,000 550 38 870 2000 <br /> 9/11/1995 1422 - -1266 -220 150 000 1,700 7,600 3,000 14,000 <br /> 12!511995 1458 - -1302 -036 45,000 960 1,500 1 000 3,200 <br /> 3/18/1996 9 62 806 4 96 8 800 290 130 240 490 <br /> 6/18/1996 1035 - -879 -073 1,600 110 32 69 91 110 <br /> 9/25/1996 1282 -11 26 247 2,800 130 <5 180 46 83 <br /> 12!4/1996 1220 -1064 0 62 2,800 290 32 250 80 560 <br /> 3/19/1997 NP 772 -616 4 48 <50 <0 5 <0 5 <0 5 <0 5 <5 01 <br /> 6/5/1997 NP 939 - -783 1 67 <50 <0 5 <0 5 <0 5 <0 5 85 0 2 <br /> 8/19/1997 NP 1084 -- -928 1 45 <50 <0 5 <0 5 <0 5 <0 5 <5 0 2 <br /> 11/25/1997 NP 11 10 -- -954 -026 <50 <0 5 <0 5 <0 5 <0 5 <5 <br /> 3/1911998 P 4 80 -324 630 <50 <0 5 <0 5 <0 5 <0 5 320 0 9 <br /> 6/24/1998 NP 676 - 520 -1 96 <50 <0 5 <0 5 <0 5 <0 5 <5 22 <br /> 9/10/1998 NP 859 - 703 -183 <50 <0 5 <0 5 <0 5 <0 5 <5 <br /> 12117/1998 NP 861 -705 -002 <50 <0 5 <0 5 <0 5 <0 5 150 <br /> 3/10/1999 NP 647 -- -491 214 <50 <0 5 <0 5 <0 5 <0 5 <5 37 <br /> 6/22/1999 NP 839 -6 83 1 92 <50 <0 5 <0 5 <0 5 <0 5 <5 29 <br /> 9/1311999 NP 1007 - -851 -168 <50 <0 5 <0 5 <0 5 <0 5 127 1 9 <br /> 12/16/1999 NP 999 - -843 008 <50 <0 5 <0 5 <0 5 <0 5 <2 5 37 <br /> 3/23/2000 NP 5 31 - -375 4 68 <50 <0 5 <0 5 <0 5 <0 5 <2 5 4 5 <br /> 6/21/2000 NP 7 49 -- -593 -218 <50 <0 5 <0 5 <0 5 <0 5 <2 5 01 <br /> 9/13/2000 NP 930 -774 181 907 <0 5 <0 5 <0 5 <0 5 <2 5 406 <br /> 12/15/2000 P 880 - -724 050 392 323 <0 500 540 100 812 1 10 <br /> E 10 8/26/1988 1 26 -- -- -- - -- - - <br /> 11/28/1988 -- -- 2,780 5,240 690 3,570 <br /> 2/27/1989 2 970 3 020 750 5,030 <br /> 5/30/1989 -- -- 5,520 5,760 1,060 6,900 <br /> 8/22/1989 - - 2,590 3,220 570 5,200 <br />