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P9 of 36 <br /> Table i <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) (mg1L) <br /> E-12 4123191 1710 -- -1514 098 <50 69 <0 5 <0 5 <0 5 <br /> (cont) 7116/91 1974 -1778 -264 320 11 <0 5 <0 5 09 -- <br /> 10/8/91 2029 - -1833 -055 210 45 <0 5 <0 5 <1 0 <br /> 1/22192 1856 -1660 173 630 29 13 <2 5 08 -- <br /> 4122192 1769 -- -1573 087 660 43 <3 2 09 21 - <br /> 7/29/92 1918 — -1722 -149 830 18 29 27 54 <br /> 10/29/92 1955 — -1759 -037 400 67 <0 5 1 3 27 <br /> 1/27/93 1626 -- -1430 329 380 15 26 1 2 <1 - <br /> 4/29/93 1443 - -1247 1 83 520 27 <2 <1 <2 - <br /> 8/5193 1608 -- -1412 -165 830 06 <0 5 1 6 22 <br /> 11/10/93 1622 - .1426 -014 280 <0 7 27 <2 4 1 7 - <br /> 3/21/94 1577 -- -1381 045 200 20 12 1 8 61 <br /> 6/27/94 1560 -1364 017 220 08 <0 3 03 <0 5 <br /> 9/29/94 1668 -- -1472 -108 330 <0 5 <0 5 <0 5 08 <br /> 1218/94 1626 -1430 042 150 <0 5 10 10 21 <br /> 3/8/95 1380 -1184 246 200 <0 5 <1 <0 5 18 - <br /> 6/1/95 1232 .1036 148 <50 <0 5 <0 5 <0 5 <0 5 <br /> 9/11195 1370 - -1174 -138 <50 <0 5 <0 5 <0 5 <0 5 <br /> 12/5/95 1488 -1292 -118 <50 <0 5 <0 5 <0 5 <0 5 - <br /> 3/18/96 918 -722 570 <50 <0 5 <0 5 <0 5 <0 5 -- <br /> 6118/96 985 -- -789 -067 <50 <0 5 <0 5 <0 5 33 13 <br /> 9/25/96 1223 -1027 -238 <50 <0 5 <0 5 <0 5 <0 5 <5 <br /> 12!4/96 1170 -974 053 <50 <0 5 <0 5 <0 5 <0 5 <5 -- <br /> 3/19/97 801 - -605 369 <50 <0 5 <0 5 <0 5 <0 5 -- 83 <br /> 615/97 NP 960 - -764 -159 <50 <0 5 <0 5 <0 5 <0 5 <5 103 <br /> 8/19197 NP 1107 -911 -147 <50 <0 5 <0 5 <0 5 <0 5 <5 62 <br /> 11/25/97 NP 1144 -948 -037 <50 <0 5 <0 5 <0 5 <0 5 <5 -- <br /> 3/19/98 P 518 -- -322 626 <50 <0 5 <0 5 <0 5 <0 5 <5 48 <br /> 6/24198 NP 724 -528 -206 <50 <0 5 <0 5 <0 5 <0 5 <5 1 8 <br /> 9/10/98 NP 883 -- -687 -159 <50 <0 5 <0 5 <0 5 <0 5 <5 -- <br /> 12/17/98 NP 897 -701 -014 <50 <0 5 <0 5 <0 5 <0 5 <5 -- <br /> 3/10/99 NP 679 -483 218 <50 <0 5 <0 5 <0 5 <0 5 <5 37 <br /> 6122199 NP 878 -- -682 -199 <50 <0 5 <0 5 <0 5 <0 5 <5 05 <br /> 9113199 NP 1043 - -847 -165 <50 <0 5 <0 5 <0 5 <0 5 <5 64 <br /> 12/16/99 NP 1030 - -834 013 <50 <0 5 <0 5 <0 5 <0 5 <2 5 50 <br /> 3/23100 P 542 — -346 488 <50 <0 5 <0 5 <0 5 <0 5 <2 5 -- <br /> Projects/ARCO/2133/Reports/Tables/gwtables2133)ds <br />