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TabPal Pageof 30 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2133 - <br /> 2908 Benjamin Holt Dr,Stockton,CA <br /> Well Depth Product Groundwater Groundwater Xylenes <br /> Well Date Elevation to Water Thickness Elevation Elevation TPHg Benzene Toluene Ethylbenzene (total) MtBE DO <br /> Number Sampled (ft,MSL) (ft,TOC) (ft) (ft,MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L) <br /> 6121100 NP 935 -- -593 -225 <50 <0 5 <0 5 <0 5 <0 5 <2 5 1 5 <br /> 9/13/00 NP 11 11 -- -769 -176 <50 <0 5 <0 5 <0 5 <0 5 <2 5 1 31 <br /> 12/15/00 P 1058 -- -716 0 53 <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 1 17 <br /> 311101 P 846 -- -504 212 64 4 0 865 0 717 <0 500 1 73 <2 50 3 3 <br /> 5/10101 P a 63 — -521 -017 <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 1 8 <br /> E-12 8126188 196 -- -- -- -- <br /> 11/28/88 <br /> _11/28/88 -- -- -- -- 80 30 8 35 <br /> 2127/89 -- -- -- -- 121 3 4 22 36 <br /> 5/30/89 -- -- — - -- 38 4 1 9 1 5 131 <br /> E 12 8122189 -- -- -- - 150 22 2 3 136 <br /> (cant) 1214/89 -- » -- - -- 250 54 <0 3 91 <br /> 1/4/90 1698 -- -1502 -- -- -- <br /> 211190 16 73 -1477 025 -- -- _ - <br /> 2115190 1669 -- -1473 004 <br /> 2/22/90 1756 •- -1560 -087 -- - - _- <br /> 3/8190 1647 -1451 109 91 7 164 3 145 <br /> 4/5/90 1664 -- -1468 -017 -- -- -- .- <br /> 4/19/90 1666 -- -1470 -002 -- _ <br /> 5110190 -- — -- -- <br /> 5124190 1705 -- -1509 -- <br /> 6/5190 1703 -- -1507 002 -- -- -- -- _ <br /> 6119190 17 80 -1584 -0 77 151 4 7 2 9 7 6 <br /> 7/12/90 1787 - -1591 -007 -- - <br /> 8116190 -- .. .. <br /> 9117190 1848 -• -1652 -- .- .. .. <br /> 9119/90 1848 -- -1652 000 1,100 180 2 9 9 8 32 <br /> 10/11/90 1857 -- -1661 -009 -- -- _ -- <br /> 1216190 18 43 -- -1647 014 -- -- -- <br /> 2112/91 1810 -- -1614 0 33 500 21 5 8 12 20 <br /> 2/25191 1808 -1612 002 -- -- _ <br /> 4123191 1710 -- -1514 0 98 <50 6 9 <05 <0 5 <0 5 <br /> 7/16/91 1974 -- -1778 -264 320 11 <0 5 <0 5 0 9 -- <br /> 10/8/91 2029 -• -18 33 -055 210 4 5 <0 5 <0 5 <1 0 <br /> 1/22/92 1856 -- -1660 173 630 2 9 13 <2 5 0 8 <br /> 4/22/92 1769 -- -1573 087 660 4 3 <3 2 0 9 21 <br /> 7129192 1918 -1722 -149 830 18 2 9 27 54 <br /> 10/29/92 1955 -- -1759 -037 400 6 7 <0 5 1 3 2 7 <br /> 1/27/93 1626 - -1430 329 380 1 5 2 5 1 2 <1 <br />