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Table 1 Soil Analytical Data Petroleum Hydrocarbons Former Unocal Service Station 0123 1034 Central Avenue at 11th Street Tracy,California Sample TPPH as Ethyl- TEPH as Oil and Sample Depth Date Gasoline Benzene Toluene benzene Xylenes Diesel Grease ID feet Sampled (ppm) ( m 0.0NDm m m m m B-1 5 03/03/94 NA ND 18 0.011 NA 44 10 NA NO 5.4 9.1 23 NA 170 B-2 5 03/03/94 NA NO ND NO NO NA 23 10 NA ND ND NO ND NA 49 B-3 5 03/03/94 NA ND 0.0058 0.0067 0.03 NA 92 9 NA 5.9 11 12 66 NA 650 B-4 10 03/03/94 NA NO ND NO NO NA NO U-A 5.5 05/18/95 1.9 ND ND 0.0074 0.012 NA NA 10.5 3,000 ND 21 22 15 NA NA 15.5 NO ND ND ND ND NA NA U-B 05/18/95 Boring terminated without sampling due to auger refusal. U-B1 5.5 05/19/95 ND NO ND NO NO NA NA 10.5 7,400 NO NO 25 25 NA NA 15.5 5.0 NO ND 0.025 0.031 NA NA 20 NO NO NO NO ND ND NA U-C 5.5 05/18/95 4.8 ND 0.075 0.047 0.45 NA NA 10.5 250 ND NO 0.26 1.4 NA NA 15.5 ND ND ND ND ND NA NA U-D 5.5 05/18/95 ND ND ND NO NO NA NA 10.5 2.8 NO 0.059 0.032 0.31 NA NA 15.5 ND ND ND NO NO NA NA U-E 5.5 05/19/95 NO ND 0.0097 NO 0.022 NA NA 10.5 NO NO ND ND ND NA NA 15.5 ND ND NO ND ND NA NA 20.5 ND ND ND ND NO NA NA 22 ND NO ND ND ND NA NA U-F 5.5 05/19/95 ND NO ND NO NO NA NA 10.5 ND NO ND NO NO NA NA 15.5 NO NO ND NO NO NA NA 20.5 ND ND ND NO NO NA NA 24 ND ND ND ND NO NA NA U-G' 05/18/95 Boring terminated without sampling due to auger refusal. U-G 5.5 05/18/95 NO NO NO ND ND NA NA 10.5 1.2 ND 0.011 0.0070 0.019 NA NA 15.5 NO ND NO ND 0.0071 NA NA U-H 5.5 05/18/95 NO ND ND ND ND NA NA 10.5 ND NO ND ND ND NA NA 15.5 NO ND ND ND NO NA NA 20.5 NO ND ND NO NO NA NA 25.5 NO ND ND ND NO NA NA U-1 5.5 05/19/95 NO ND NO 0.013 0.062 ND NA 10.5 2,300 NO 9.1 38 170 480 NA 15.5 ND ND NO NO ND ND NA 20.5 NO NO NO 0.061 0.039 1.1 NA 3100971 B\TBLS.XLSITABLEi February 8,1996