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Table 2 <br /> Groundwater Analytical Results <br /> UNOCAL Bulk Plant 0788 <br /> 8203 Fast 11 th Street <br /> Tracy,California <br /> Well Sample TPH Gasoline TPH Diesel Benzene Toluene Ethylbenzene Xylenes <br /> Number Date (Ppb) (ppb) (ppb) (ppb) (ppb) (ppb) <br /> U-1 F 11/11/90 146 NO 19 NO 2.4 3 <br /> 02/14/91 60 ND 10 NO ND 2.1' <br /> 05/23/91 NO NO 56 ND NO 1.0 <br /> 08/30/91 NO NO 13 NO ND NO <br /> 11/06/91 NO NO NO NO NO NO <br /> U-2 11/11/90 670 NO 2 NO NO 99 <br /> 02/14/91 230,: NO 6.9 NO 4.5 35 <br /> 05/23/91 356 NO 10 NO 13 57 <br /> 08/30/91 x,700 NO 53 ND 90. .110 <br /> 11/06/91 290*. NO .18 ND 12 30 <br /> U-3 11/11/90 ND ND NO NO ND NO <br /> 02/14/91 NO NO NO NO ND NO <br /> 05/23/91 NO NO NO ND NO NO <br /> 08/30/91 NO NO. NO NO NO NO <br /> 11/06/91 NO ND NO NO NO NO <br /> U-4 05/23/91 NO 50* NO NO NO NO <br /> 08/30/91 NO ND NO NO NO NO <br /> 11/C6/91 NO NO NO NO ND NO <br /> U-5 05/23/91 3,200 180* 42 240 68" 440 <br /> 08/30/91 2,200 386 100 13 71 170 <br /> 11/06/91 1,400 ND 66 6.1:, 54 38' <br /> U-6 05/23/91 240 280* 17 .6.0 3.0 22 <br /> 08/30/91 NO ND 0.5 0.5 0.87 1.9 <br /> 11/06/91 280 NO 8.2 •4:8 18 26 <br /> Detection Umit 50 50 0.5 0.5 I 0.5 0.5 <br /> TPH gasoline = total petroleum hydrocarbons calculated as gasoline <br /> TPH diesel = total semi-and non-volatile hydrocarbons calculated as diesel <br /> ppb = parts per billion <br /> NO = not detected <br /> -- — - . ---- - — _-non-typical chromatograph pattern,,-see laboratory reports,-Appendix B -- — -- -- --- - <br /> 3100102,14031 December 31, 1991 <br />