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. 0 P*of 36 Table 1 Groundwater Elevation and Analytical Data ARCO Service Station#2133 2908 Benjamin Holt Dr,Stockton,CA Well Depth Product Groundwater Groundwater Xylenes Well Date Eievation to Water Thickness Elevation Elevation TPHg Benzene Toluene Ethylbenzene (total) MtBE DO Number Sampled (ft,MSL) (ft,TOC) (ft) (ft,MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L) 4129193 1547 -1246 181 33,000 3,200 270 1,400 2,300 -- E-6 815193 1711 -- -1410 -164 16,000 2,500 57 1,100 1,000 (cont) 11/10/93 1734 - -1433 -023 27,000 2,500 73 1,200 1,800 3/21/94 1684 -- -1383 050 21,000 2,000 150 1,200 2,100 -- 6/27194 1658 - -1357 026 17,000 2,000 47 1,300 1,600 9129/94 -- -- -- -- 29,400 3,100 <100 1,800 2,900 1ZW94 1588 -- -1287 - 18,000 2,100 240 1,800 2,600 3/8/95 282 1334 - -1033 254 47,000 880 170 870 2,900 - 6/1/95 -- -_ 9/11/95 1410 -- -1109 -- 15,000 320 <20 400 130 12/5/95 141 1455 -- -1314 -205 -- -- -- -- -- 3/1V96 938 -797 517 1,200 14 <5 24 27 6/18/96 990 - -849 -052 -- -- __ __ _- -- 9/25/96 1262 - -1121 -272 3,700 42 <5 120 99 <50 1214/96 1204 -- -1063 058 -- -- _- _- _- -- 3/19/97 NP 756 -- -615 448 <50 <0 5 <0 5 <0 5 <0 5 02 6/5197 P 919 -- -778 -163 -- -- -- __ 03 8/19/97 NP 1057 -- 916 -138 200 24 091 27 26 24 03 11/25/97 P 1083 -942 -026 -- -- -- -- _- __ -- 3119/98 NP 537 -- -396 546 <50 <0 5 <0 5 <0 5 <0 5 13 23 6124198 662 -521 -125 -- -- -- -- -- -- -- 9110198 NP 841 -700 -179 <50 107 0 742 <0 5 121 <5 0 12/17198 835 -- -694 006 -- -- -- -- -_ _- _- 3/10/99 NP 626 -485 209 <50 <0 5 <0 5 <0 5 <0 5 <5 0 68 6122/99 830 -689 -204 - -- -- -- -- -- 24 9113199 NP 1001 -- -860 -171 <50 0 837 <0 5 <0 5 0 923 <5 0 1 8 12115199 985 - -844 016 -- -- -- -- -- -- 68 3123100 P 521 - -380 464 107 <0 5 <0 5 <0 5 <0 5 <2 50 55 6121100 753 - -612 -232 -- -- -- -- -- 08 9113100 NP 926 -785 -173 <50 <0 5 <0 5 <0 5 <0 5 <2 50 1 28 Projects/AACO/2133/Reports Tables/gwtables2133 As