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qrq <br /> I Table 3 (Continued) a: <br /> Summary of Groundwater Analytical Results <br /> a <br /> UNOCAL Bulk Plant 0788 d <br /> r 8203 East 11th Street <br /> Tracy, California : <br /> I <br /> Well Sample TPH Gasoline TPH Diesel Benzene Toluenes Ethylbenzene Xylenes <br /> Number Date (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) <br /> U-5 05/23/91 .E 3,200 180* 42 240 68 440 <br /> 08/30/91 2,200 380 100 13 71 170 <br /> 11%06/91 1,400 ND 66 6.1 I 54 38 <br /> 02/19/92 4,700 ND 340 660 120 770 <br /> 180 ND, 12 ND 6.5 2.8 <br /> l <br /> U-6 05/23/91 240 280* 17 6.0 3.0 22 <br /> 08/30/91 A ND ND 0.5 0.5 0.87 1.9 <br /> 11/96/91 280 ND 8.2 4.8 18 26 <br /> 02/19/92 4,000 ND 210 78 q 180 610 <br /> 04/61/92 970 ND 330 2.8 41 14 <br /> 1 U-7 03/31/92 ND ND ND ND ND ND <br /> C; U-8 03/31 J92 ; 71* ND ND ND 3.5 ND <br /> U-9 04/01/92 ND ND ND ND ND ND <br /> U-10 04/91/92 ND ND <br /> ND 0.83 ND ND <br /> i <br /> F Detection Limit 50 50 0.5 0.5 0.5 0.5 <br /> TPH gasoline.-- total petroleum hydrocarbons calculated as gasoline <br /> r TPH diesel = total semi-and non-volatile hydrocarbons calculated as diesel <br /> ppb = parts per billion <br /> ND = not detected - -- <br /> * = atypical chromatograph pattern; see laboratory reports,Appendix B <br /> ! k C <br /> I <br /> y <br /> I I <br /> i <br /> 3100103/REPORT3 June 11, 1992 <br /> k <br />