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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-3 5/9/94 6.5 ND ND ND ND ND ND - - - <br /> 13.5 ND 1.4 ND ND ND ND - - - <br /> *19.0 ND - ND ND ND ND - - - <br /> *24.0 ND - ND ND ND ND - - - <br /> S13-4 5/9/94 11.5 ND ND ND ND ND ND - - - <br /> 14.0 ND ND ND ND ND ND - - - <br /> 16.5 ND 1.1 ND ND ND ND - - - <br /> *19.0 ND - ND ND ND ND - - - <br /> *24.0 ND - ND ND ND ND - - - <br /> SB-5 5/9/94 11.5 ND 1.1 ND ND ND ND - - - <br /> 14.0 ND ND ND ND ND ND - - - <br /> 16.5 ND ND ND ND ND ND - - - <br /> *19.0 ND - ND ND ND ND - - - <br /> *24.0 ND - ND ND ND ND - - - <br /> S13-6 5/9/94 11.5 260 740 0.81 0.85 6.7 1.8 - - - <br /> 14.0 ND ND ND ND ND ND - - - <br /> 16.5 ND 1.8 0.0063 ND 0.060 0.012 - - - <br /> 19.0 ND ND ND ND ND ND 6.0 - - <br /> *21.5 ND ND ND ND ND ND - - - <br /> *24.0 ND ND ND ND ND ND - - - <br /> SB-7 5/9/94 11.5 1,200 5,200 8.4 2.9 23 2.2 - - - <br /> 14.0 100 970 0.14 0.068 0.16 0.90 - - - <br /> 16.5 ND 3.2 ND ND ND ND - - - <br /> 30-0136/historical soil,2/12/97 Page 6 of 8 <br />