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. . PO of 36 Table t Groundwater Elevation and Analytical Data ARCO Service Station#2133 2908 Benjamin Holt Dr,Stockton,CA Well Depth Product Groundwater Groundwater Xylenes Well Date Elevation to Water Thickness Elevation Elevation TPHg Benzene Toluene Ethylbenzene (total) MISE DO Number Sampled (ft,MSL) (ft,TOC) (ft) (ft,MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L) E-8 6121100 NP 691 -- -594 -218 <50 <0 5 <0 5 <0 5 <0 5 <25 0 5 (cant) 9/13100 NP 873 - -776 182 <50 <0 5 <0 5 <0 5 <05 <2 5 1 42 12/15/00 P 8 20 -- -723 053 444 0 741 0 802 <0 500 <0 500 2 67 0 60 311101 NP 6 16 -519 2 04 <50 0 <0 500 <0 500 <0 500 <0 500 2 61 3 1 5110/01 P 6 22 -- -5 25 -006 198 <0 500 0 772 0 608 152 <2 50 2 7 8122101 P 897 - -800 -275 360 12 14 063 2 0 <2 5 -- 1215/01 P 815 — -718 082 280 1 1 <0 50 <0 50 071 4 8 1 12 3111102 P 640 -- -5 43 175 77 <0 50 <0 50 <0 50 <0 50 2 9 162 6/6102 P 7 31 -634 -0 91 51 <0 50 <0 50 <0 50 <0 50 6 7 0 83 9124102 P Well Inaccessible,Roadway Repaved E-9 8/26/88 156 -- - -- -- 4,700 4,900 1,400 5,100 -- 11128/88 -- -- -- - 780 1,100 400 1,280 2127189 - -- 900 100 260 1,700 - - 5/30189 -- -- -- 8/22/89 -- -- 690 <500 <500 860 1214189 -- -- .. .. 1/4190 16 64 - -1508 -- 2/1/90 2/1/90 16 44 -- -1488 020 - - -- -- -- -- 2/15/90 1639 -1483 006 -- -- - 2/22190 1627 -- -1471 012 -- -- -- -- -- 3/8/90 1619 -1463 008 - 490 70 360 1,440 4/5/90 1648 - -1492 -029 - -- -- -- -- 4/19/90 1649 -- -1493 -001 - - - 5110190 1686 -- -1530 037 - - - 5/24/90 1677 -1521 009 -- - 615/90 1670 -- -15 14 007 -- - 6118190 1747 -- -15 91 -077 -- -- -- -- -- 7112190 1753 - -1597 -006 - - - 8/16190 17 82 -- -1626 -029 -- -- - - - 9117190 1815 -- -1659 -033 -- -- -- -- 9/19/90 1815 - -1659 000 24,000 130 140 80 6,000 10/11/90 1824 -- -1668 -009 -- -- - - 12/6/90 1811 -1655 013 -- -- - -- -- 2/12191 17 80 -- -1624 0 31 18,000 2,600 130 610 4,700 2/25191 1876 - -1720 -0 96 -- -- -- -- -- - -- Projects/ARCO/2133/Reports/Tables/gwtables2133 As