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'iii "s..�� � .� 'r k <;S`� ��.' ..� u d ^r ,,gym. •,� „.. SLs�.. n '� `�&;,r h.", �- _ <br /> Table 1. Analytical; Results of Groundwater Samples Collected at <br /> ARCO Station 2133, Stockton, California (continued) <br /> Aromatic volatile organics(BETX), µg11 <br /> Total petroleum <br /> well Date hydrocarbons, <br /> number sampled Benzene Ethylbenzenc Toluene Xylenes C-4 to C-12, µg11 <br /> E-10 8126,188 -- -- -- -- -- <br /> 11/28/88 2,780 690 5,240 3,570 -- <br /> 2/27189 2,970 750 3,020 5,030 -- <br /> 5/30189 5.520 1,060 5,760 6,900 -- <br /> 822l89 2,590 570 3,220 5,20.7 -- <br /> 1214l89 1.300 400 11200 3,200 -- <br /> 3/8/90 339 268 606 1,480 -- <br /> 6/19190 3,510 790 3,180 6,490 -- <br /> 9A9190 36 X50 39 7,700 20,000 <br /> 6-11 826/88 -- -- -- -_ _. <br /> 11,28/88 440 110 380 460 <br /> 227189 400 120 250 820 <br /> 5/30/89 437 97 162 281 -- <br /> 822/89 160 38 36 220 - <br /> 1214/89 240 38 26 290 -- <br /> 38190 80.1 75.6 31.3 242 -- <br /> �- 6118/90 135 20 16.6 111 -- <br /> 9/19/'99 90 14 8.2 110 680 . <br /> E-12. 8/26188 -- -- -- -- -- <br /> 1128188 80.0 8.0 30.0 35.0 <br /> 227/89 121 2.2 3.4 36 -- <br /> 5/30/89 38.4 1.5 1.9 13.1 <br /> 8/22189 150 2.3 2.2 13.6 - <br /> 1214/89 250 <0.3 54 91 -- <br /> 38)90 91.7 3.0 16.4 14.5 - <br /> 6/18/90 151 2.9 4.7 7.6 <br /> 9/18190 180 1 9.8 2.9 32 19100 <br /> aDepartment of Health Services(DHS)Maximum Contaminant Levels(MCLs), 1989. <br /> bDepartmcnt of Health Services(DHS) Action Level (MCL not established for toluene). <br /> cNot analyzed for total petroleum hydrocarbons. <br /> q . <br /> t . <br /> i' <br />