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a. <br /> Table 2 <br /> Groundwater RnalytIC3I Results <br /> UNOCAL Bulk Plant 0788 <br /> 8203 East 11th Street <br /> Tracy,Calffamia <br /> Well Sample TPH Gasoline TPH Diesel Benzene Toluene Ethylbenzene Xylenes <br /> Number Date (Ppb) <br /> (Ppb) (Ppb) (Ppb) {Ppb) {Ppb) <br /> U-1 11/11/90 140 ND 19 ND 2.1 <br /> 2.4 3 <br /> NO 10 ND ND <br /> { 02/14/91 60 ND ND ND 1.0 <br /> 05/23/91 56 ND ND ND <br /> 08/30/91 NO <br /> NO 13 ND <br /> ND NO NO NO ND ND <br /> 11/06/91 ND ND NO. NO ND <br /> 02/19/92 :? ND <br /> } U-2 11/11 670 ND 2 ND ND: 99 <br /> /90 <br /> ND 6.8 ND 4.,5 35 <br /> 02/14/91 230 ND 14 ND 13 57 <br /> 05/23/91 350 ND 53 ND 90 110 <br /> f 08/30/91 1,700 i8 ND 12 30. <br /> f 11/06/91. 290*. .: N� 92 ND 23; 44 <br /> ` 02/19%92 ? <br /> NO NO ND ND ND <br /> s � U,'� 11/11/30 ND NO ND NO ND <br /> 02/14/91 ND ND ND ND <br /> 05/23/91 ND ND ND ND <br /> ! 08/30/91 ND ND NO ND ND ND ND ND ND SND <br /> 11/06/91 ND ND NO ND NO <br /> j 02/19/92 NO 3.700 <br /> 1 ND ND <br /> 05/23/91 ND 50* ND ND <br /> ND . ND <br /> U ND NDND <br /> 08/30/91 ND ND ND _ <br /> 11/06/91., ND ND ND ND ND NO <br /> 02/19J92+ <br /> NO <br /> ND ND NO <br /> v180* 42 240 68 440 <br /> U-5 05/23/91 3.200 100 13 71 110 <br /> t 03/30/91 2,200 ND 66 s.1 54 38 <br /> 11/06/91 1.400. ND 660 120: <br /> 02/19/92 4,700 <br /> Detection Limit <br /> 50 0 5 <br /> TPH gasoline total petroieum hydrocarbons calculated as gasoline <br /> TPH diesel total semi-and non-volatile hydrocarbons calculated as diesel <br /> t --- -- -PPb-a--parts perhiAian ----- -- ---- ---- — ----.- -------- ---- ----- ---- - -- <br /> ND e . not detected <br /> non-typical chromatograph pattem;see laboratory reports,Appendix B <br /> s , <br /> 3100104/1Q92 March 24,199. <br /> x . , <br />