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Table 1 <br /> Summary of Soil Sample Analysis <br /> Former Mobil Bulk Plant 04-343 <br /> Tracy, California <br /> Boring Date of Depth TPH-G TPH-D Benzene Toluene Ethyl- Total Pb TOC Sulfides <br /> ID Sampling/ (feet) (ppm) (ppm) (ppm) (ppm) benzene Xylenes (ppm) (ppm) (ppm) <br /> Monitoring (ppm) (ppm) <br /> SB-7 '19.0 ND - ND ND ND ND - - - <br /> (con't) '24.0 ND - ND ND ND ND - - - <br /> SB-8 05/10/94 11.5 430 6,700 1.2 0.90 0.76 2.7 - - - <br /> 16.5 ND ND ND ND ND ND - - - <br /> *19.0 ND ND 0.010 0.043 ND ND - - - <br /> *24.0 ND 1.0 ND 0.043 ND ND - - - <br /> *31.5 ND ND ND 0.016 ND ND - - - <br /> 34.0 ND ND ND ND ND ND - - - <br /> S13-9 05/10/94 11.5 940 1,100 4.1 3.8 6.6 5.8 - - - <br /> 16.5 ND ND ND ND ND ND - - - <br /> *19.0 ND ND ND 0.005 ND ND - - - <br /> *21.5 ND ND ND 0.007 ND ND - - - <br /> *24.0 ND ND ND 0.006 ND ND - - - <br /> 26.5 ND ND ND ND ND ND - - - <br /> SB-10 5/10/94 6.5 200 1,900 ND 0.16 0.42 1.3 - - - <br /> 11.5 1.1 8.0 ND ND ND 0.0089 - - - <br /> 16.5 ND 2.1 ND ND ND ND - - - <br /> '19.0 ND 1.5 ND ND ND ND - - - <br /> *21.5 ND ND ND ND ND ND 3.6 - - <br /> *31.5 ND - ND ND ND ND - - - <br /> SB-11 5/10/94 6.5 ND ND ND ND ND ND - - - <br /> 11.5 ND ND ND ND ND ND - - - <br /> 16.5 ND ND ND ND ND ND - - - <br /> *19.0 ND - ND ND ND ND - - - <br /> 21.5 ND ND ND ND ND ND - - - <br /> 30-0136/historical soil,2/12/97 Page 7 of 8 <br />