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Tab# Pagelef 30 <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 /> I <br /> Sampled (feet, MSL) (feet,TOC) in feet (feet,MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) mg/I <br /> E 8 6/21/2000 NP 691 -594 -218 <50 <0 5 <0 5 <0 5 <0 5 <2 5 0 5 <br /> (cont) 9/13/2000 NP 873 -- -776 -1 82 <50 <0 5 <0 5 <0 5 <0 5 <2 5 1 42 <br /> 12/15/2000 P 820 -- -723 053 444 0 741 0 802 <0 500 <0 500 267 060 <br /> E 9 8/26/1988 1 56 -- -- -- - 4,700 4,900 1,400 5,100 <br /> 11/28/1988 780 1,100 400 1 280 <br /> 2/27/1989 900 100 260 1,700 <br /> 5/30/1989 -- -- - - <br /> 8/22/1989 -- -- -- - 690 <500 <500 860 <br /> 12/4/1989 - - -- - <br /> 1/4/1990 1664 -1508 - - <br /> 2/1/1990 1644 -- -1488 020 <br /> 2/15/1990 1639 -1483 005 <br /> 2/22/1990 1627 - -1471 012 - <br /> 3/8/1990 1619 - -1463 008 490 70 360 1,440 <br /> 4/5/1990 1648 -- -1492 -029 -- <br /> 4/19/1990 1649 -- -1493 001 - - <br /> 5/10/1990 1686 -- -1530 0 37 <br /> 5/24/1990 1677 1521 009 <br /> 6/5/1990 1670 -- -1514 0 07 <br /> 6/18/1990 1747 -1591 0 77 <br /> 7/12/1990 1753 -- -1597 -006 <br /> 8/16/1990 17 82 - -1626 -029 - <br /> 9/17/1990 1815 -- -1659 -033 -- - <br /> 9/19/1990 1815 1659 000 24,000 130 140 80 6,000 <br /> 10/11/1990 1824 -- -1668 009 - <br /> 12/6/1990 1811 -1655 013 - <br /> 2/12/1991 1780 - -1624 0 31 18,000 2,600 130 610 4,700 <br /> 2/25/1991 1876 - -1720 -096 -- - -- <br /> 4/23/1991 1689 -- -1533 187 <br /> 7/15/1991 Dry -- - - - - <br /> 10/8/1991 Dry - -- - <br /> 1/22/1992 1824 1668 -- - - - - <br /> 4/22/1992 1745 -1589 079 3,600 170 10 50 120 <br /> 7/29/1992 Dry -- -- -- -- - - <br /> 10/29/1992 1719 - -1563 -- 8,900 480 32 440 1,100 <br /> 1/27/1993 1610 -- -1454 1 09 12 000 390 25 310 730 <br />