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Tab* Paef 32 Groundwater Elevation and Analytical Data ARCO Service Station#2133 2908 Benjamin Holt Dr,Stockton,California Well Depth Product Groundwater Groundwater Total Date Elevation to Water thickness, Elevation Elevation change TPH-G Benzene Toluene Ethylbenzene Xylenes MTBE DO I Sampled (ppb} {ppb) mg/I eet,___ eet, in feet (feet,MSL) (feet) {ppb} (ppb) (ppb) (PPI?) I 4/5190 1767 - -1466 -002 -- E-6 4/19/90 1773 -- -1472 -006 (cont) 5/10/90 1811 -- -1510 -038 -- 5/24/90 1813 -- -1512 -002 - 6/5/90 1812 -- -1511 001 -- -- 6/19/90 1880 -- -1579 -068 7/12190 1872 -- -1571 008 8/16/90 Dry -- -- -- - 9/17/90 Dry -- -- 10/11/90 Dry -- -- -- 12/6/90 Dry -. -. -- - - - 2/12/91 1886 -- -1585 -- 2/25/91 18 84 - -1583 002 4/23191 1814 -- -1513 070 - 7/15/91 Dry -- -- -- 10/8/91 Dry -- -- -- 1/2092 Dry -- -- - 4/22192 1855 -- -1554 - -- 7/29192 Dry -- -- - -- - -- 10/29/92 Dry -- _- -- -- - -- -- 1/27/93 1728 -- -1427 -- 26,000 3,300 310 1,000 1,600 4129193 1547 -- -1246 181 33,000 3,200 270 1,400 2,300 8/5193 1711 -- -1410 -164 16,000 2,500 57 1,100 1,000 11/10/93 1734 - -1433 -023 27,000 2,500 73 1,200 1,800 =1/94 16 84 -- -1383 0 50 21,000 2,000 150 1,200 2,100 6/27/94 1658 -- -1357 026 17,000 2,000 47 1,300 1,600 9/29/94 -- -- -- - 29,400 3,100 <100 1,800 2,900 1218194 15 88 -- -1287- - 18,000 2,100 240 1,800 2,600 318/95 2 82 13 34 -1033 254 47,000 880 170 870 2,900 6/1/95 -- -- -- - 9/11/95 1410 -- -1109 -- 15,000 320 <20 400 130 1215/95 141 1455 -- -1314 -205 -- -- -- - - 3/18/96 938 -- -797 517 1,200 14 <5 24 27 6118196 9 90 -849 -052 -- -- -- - - - 9/25/96 1262 -- -11 21 -272 3,700 42 <5 120 99 <50 12/4/96 1204 -- -1063 058 - - -- - - - -- 3/19/97 NP 756 - -615 448 <50 <0 5 <0 5 <0 5 <0 5 - 0 2 615/97 P 919 -- -778 -163 - -- -- 0 3 077 41 930 803/GW Tables