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- 4 <br /> l <br /> ' r <br /> Table 3 <br /> Summary of Groundwater Analytical Results <br /> UNOCAL Bulls Plant 0788 <br /> «» 8203 East 11th Street <br /> Tracy,California <br /> Wel! Sample TPH Gasoline TPH Diesel Benzene Toluene EthyfpP jene Xylenes} <br /> Number Date (ppb) <br /> NO 19 NO 2.4 3 <br /> ' U-1 11/11/90 140 10 ND NO 2.1 <br /> 02/14/91 60 ND ND ND 1.0 <br /> 05/23/91 <br /> NO ND 56 <br /> 2 NO ND 99 <br /> U-2 11/11/90 670 NO 4.5 35 <br /> - 02/+4/91 230 ND BO ND 13 57 <br /> 05/23/91 350 <br /> NO NO NO NO NO <br /> ! U-3 11/11/90 NO NO NO NO NO <br /> 02/14/91 NO NO NO ND NO <br /> 05/29/91 NO ND NO <br /> U-4 05/23/91 NO 50* <br /> NO NO ND NO <br /> 180* 42 240 <br /> 68 440 <br /> U-5 05/23/91 3,200 <br /> i 280* 17 5.0 3.0 22 <br /> U-6 05/23/91 240 - <br /> 0.5 0.5 <br /> Detection Limit 50 <br /> 50 0.5 0.5 <br /> TPH gasoline=total petroleum hydrocarbons calculated as gasoline <br /> TPH diesel =total seml-and non-volatile hydrocarbons calculated as these! <br /> ppb = parts per biilion <br /> ND = not detected <br /> = non-typical chromatograph pattern;see laboratory reports,Appendix 13 <br /> .I <br /> ti September 30,1991 <br /> 3100101/REPORT2 <br /> - i <br />