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S0 Page1 of 33 <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2133 <br /> 2908 Benjamin Holt Or,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 /> E-7 10/11/90 1776 -- -1660 -004 - <br /> (cont) 1216190 -- -- -- -- - - -- <br /> 2112/91 17 28 -- -1612 - 840 33 8 7 2 21 <br /> 2125/91 1722 -- -1606 006 -- - -- - <br /> 4/23191 1633 -- -1517 0 89 - - - <br /> 7116/91 1865 -- -1749 232 - -- <br /> 1018/91 1900 -- -1784 -- -- - <br /> -- <br /> 1/22/92 1775 -- -1659 125 860 2 8 1 2 21 2 3 - <br /> 4/22/92 1681 -- -1565 0 94 500 <21 <3 2 <1 9 <1 9 - •- <br /> 7/29192 1827 -1711 -146 -- - - - - <br /> 10/29/92 — — -- -- -- -- -- - -- - -- <br /> 1127/93 1548 -- -1432 -- 660 <5 27 1 6 2 9 <br /> 4129193 1373 -- -1257 175 450 <3 4 <3 1 <2 0 <09 -- <br /> 815193 15 43 -- -1427 -170 360 <5 <3 2 9 0 9 -- <br /> 11/10/93 1567 — -1451 -024 150 16 0 6 14 06 - <br /> 3/21/94 1509 -- 1393 058 68 2 9 1 4 0 8 3 4 <br /> 6/27/94 1486 -- -1370 023 180 <0 3 <0 3 3 9 0 8 - <br /> 9/29/94 1605 - -1489 -1 19 <50 <0 5 <0 5 <0 5 <0 5 <br /> 12/8/94 1565 -- -1449 040 <50 <0 5 <0 5 <0 5 <0 5 - <br /> 318/95 1301 -- -11 85 2 64 <50 <0 5 <0 5 <0 5 <0 5 <br /> 6/1195 1169 -- -1053 132 67 <0 5 <0 5 3 5 12 -- <br /> 9/11/95 1385 -1269 -216 75 <0 5 <0 5 0 5 <0 5 <br /> 1215/95 1420 -- -1304 -035 - -- -- -- -- -- <br /> 3/18/96 918 -- -802 502 <50 <0 5 <0 5 <0 5 <0 5 - <br /> 6/18196 1000 - -884 -082 -- - -- -- -- - <br /> 9125196 1247 -- -1131 -247 56 <0 5 <0 5 <0 5 <0 5 <5 -- <br /> 12/4/96 11 88 -- -1072 0 59 -- - - -- - - <br /> 3119197 NP 734 -- -618 4 54 <50 <0 5 <0 5 <0 5 <0 5 - 0 2 <br /> 615/97 P 8 87 -- -771 -153 -- - -- - -- 0 3 <br /> 8119197 NP 1042 -- -926 -155 54 <0 5 <0 5 <0 5 <0 5 <5 0 2 <br /> 11/25/97 P 1059 •- -9 43 -017 -- -- -- -- -- -- -- <br /> 3119/98 P 432 -- -316 627 <50 <0 5 <0 5 <0 5 <0 5 <5 21 <br /> 6124198 6 39 -523 -207 -- -- - -- -- -- -- <br /> 9110/98 NP 815 -- -699 -176 <50 <0 5 <0 5 <0 5 <0 5 <5 - <br /> 12/17/98 8 21 -- -705 -006 -- -- -- -- -- <br /> 3110/99 NP 595 -479 226 <50 <0 5 <0 5 <0 5 <0 5 <5 2 9 l <br /> Projects/ARCO/2133/Reports/Tablea/gwtabtes2133 As <br />