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Preservation of Soil Samples After field screening, the sample sleeve ends were sealed with aluminum foil and further protected with plastic caps. The samples were labeled with ID#, location, depth, date, time, sampler' s initials, and analyses to be performed; then placed in an ice chest at 4 degrees C and delivered with accompanying chain of custody documentation to a California State certified analytical laboratory. Selection and Certified Laboratory Analyses of Soil Samples A determination, of which soil samples from each soil boring were to be selected for certified laboratory analysis, was made based on the results of field screening. A minimum of one sample, per borehole from 15 feet below surface was analyzed. The selected soil samples were analyzed by a certified laboratory for concentrations of Total Petroleum Hydrocarbons as Gasoline (TPHg) using EPA method 8015 modified, 5030 extraction, and Benzene, Toluene, Ethylbenzene, and Xylenes (BTEX) using EPA method 8020. Select samples were also analyzed for TPH diesel (TPHd) using EPA method 8015 modified, 3510 extraction. Destruction of Confirmation Soil Borings. . The soil borings were destroyed by the drilling contractor on the same day they were drilled. The borings were backfilled from total depth to within two feet of the surface with neat cement with <5% bentonite. The surface portion of the hole was either plugged with quick setting concrete or clean soil dependent on surface cover, then leveled to grade. I RESULTS During drilling, elevated PID readings were detected in soil boring SBA (see table 1) with the highest level being in SBA at 15 feet below surface. During drilling, the following general soil profile was encountered: 1. Silty sand from 1 to 5 feet below the surface. This sand is discontinuous and not found over the entire site. 2 . Dark brown silty clay, from the base of the silty sand to approximately 14 feet below the surface. 3