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Table 1 <br /> Summary of Excavation Floor & Wall Soil Samples <br /> P' Concentration (ppm) <br /> �. Sample B T E X TPH TEL EDB <br /> -------------------------------------- <br /> --------------------------------- <br /> Pit Bottom <br /> N/E .077 .15 . .017 .12 ND ND ND <br /> Pit Bottom <br /> N/W .023. .044 ND .046 ND ND ND <br /> Pit Bottom <br /> S/E .18 .44 .026 .16 .6. ND ND <br /> Pit Bottom <br /> S/W .32 `,: 1.4 .20 1.3 2.9 ND ND <br /> West Wall ND ND ND ND ND ND ND <br /> East Wall ND 4.1 34 470 2000` ND ND <br /> North Wall <br /> West ND ND ND ND ND <br /> - North Wall <br /> East ND ND ND ND ND - <br /> South Wall <br /> West ND ND ND ND ND - <br /> South Wall <br /> East ND ND ND ND ND - <br /> Note: B - benzene <br /> T = toluene <br /> E = ethylbenzene <br /> X = xylenes <br /> TPH total petroleum hydrocarbons as gasoline <br /> TEL tetra ethyl lead <br /> EDB = ethylene dibromide <br /> ND = non detected <br /> = not analyzed <br /> L <br /> 4 <br />