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<br /> Table I Pa1ge 130 of 26
<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 DQ
<br /> Sampled (feet,MSL) (feet,TOC) in feet (feet MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) MO
<br /> E-10 8126188 126 - -- - - - - - - - - -
<br /> 11/28/88 - 2,780 5,240 690 3,570 --
<br /> 2/27189 - - 2 970 3,020 750 5,030 --
<br /> 5130/89 5 520 5,760 1 060 6,900 -
<br /> 8122/89 - 2 590 3 220 570 5200 -
<br /> 1214189 1 300 1,200 400 3,200 --
<br /> 114l90 1637 -1511 - - -
<br /> 211190 1614 -1488 0 23 - -
<br /> 2/15/90 1612 - -1486 002 - - -
<br /> 2122190 1690 - -1564 -078 - - -
<br /> 3/8l90 1590 -1464 100 339 606 268 1,480
<br /> 415190 1606 -1480 -016 -
<br /> 4/19/90 1620 1494 -014 - -
<br /> 5110l90
<br /> 5124190 1642 1516 - -
<br /> 615190 16 40 - -15 14 002 - - - -
<br /> 6119190 1714 1588 -0 74 3 510 3,180 790 6 490 -
<br /> 7112190 1721 -15 95 -007 - - -
<br /> 8/16/90 1757 -- -1631 -036 - - -- - -
<br /> 9117/90 1782 - -1656 -025 - - - -
<br /> 9/19190 1782 -- -1656 0 00 20,000 36 39 <50 7 700 - -
<br /> 10111/90 1794 -- -1668 -012 - - - - - - -
<br /> 1216190 1778 - -1652 016 - -- --
<br /> 2/12191 1747 -- -1621 0 31 7,800 1,100 730 320 3,600 - -
<br /> 2/25191 1741 - -1615 006 - - - - -
<br /> 4123191 1656 - -1530 0 85 8,200 670 180 200 750 - --
<br /> 7116191 1911 -- 1785 -2 55 9,400 850 230 210 1,100 - -
<br /> 1018/91 1960 -1834 -049 8 700 860 150 260 820 -
<br /> 1/22192 1824 -- -1698 1 36 32,000 3 200 800 3,600 3,600 - -
<br /> 4122/92 1714 - -1588 1 10 26,000 2,800 1,300 880 3,400 - -
<br /> 7129192 1862 -- -1736 -148 42,000 3,400 1,100 1,400 6,400 - -
<br /> 10/29/92 1899 - -1773 -037 25,000 3,600 700 1,200 4,000 - --
<br /> 1127193 15 77 - -1451 322 31,000 2,500 540 1,100 3,100 -- --
<br /> 4129193 1396 -- -1270 1 81 28,000 2,500 640 1,400 4,400 -- --
<br /> 815193 1552 -- -14 26 -1 56 32 000 3 300 630 1,700 5,700 - --
<br /> 11/10/93 1585 - -1459 -033 31,000 2,600 290 1,500 4,400 - -
<br /> 3/21/94 1529 - -1403 0 56 28,000 2,900 290 1,700 4,500 -- --
<br /> 6/27/94 1510 -- -1384 019 25 000 3 000 180 1,900 4,100 - --
<br /> 9129194 1611 -- -1485 -1 01 27,700 3,200 150 1,780 2,900 -- -
<br /> 7G600-019-01/GW Tables
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