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A 2"x6" brass tube was then pushed by hand into the aggregrate pile and -- ,ompletely filled leaving no headspace. The ends of the brass tube were covered with aluminum foil, plastic caps were then placed over the ends and sealed with duct tape. An identification label was then placed on the tube showing the sample number, date, and time obtained. The sample was then stored in an icechest containing blue ice for transportation to the laboratory. The hand spade used for sampling was washed in a bucket of water containing TSP to prevent cross contamination of samples. Under the proper Chain-of-Custody the soil samples were delivered by Milt Tiffin to Geo Analytical Laboratories, Inc. , a State of California certified laboratory, where the twenty (20) samples will be composited into ten ( 10) samples (Table I ) . The ten (10-) composited soil samples will be analyzed for BTEX while five (5) of the composited samples will be analyzed for TPH-Gasoline and the other five (5) samples will be analyzed for TPH-Diesel. During the collection of these soil samples no detectable petroleum odor or apparent staining was found. Laboratory Results The soil 'samples were delievered to Geo Analytical Laboratories, Inc. on September 1 , 1993, by Chain-of-Custody (Exhibit A) and were analyzed by the laboratory on September 8, 1993. The twenty ( 20) soil samples were composited by the laboratory into ten ( 10) samples their detection results are shown on Table II. The laboratory results are enclosed as Exhibit B. All ten ( 10) soil samples were analyzed for Benzene, Toluene, Ethyl Benzene, .nd Total Xylenes. They were all reported to be non-detect for these analytes. Composited samples AP-1&AP-2, AP-5&AP-6, AP-9&AP-10, AP-13&AP-14, and AP-17&AP-18 were analyzed for TPH (Total Petroleum Hydrocarbons) gasoline and were reported as non-detect. Composited samples AP-3&AP-4, AP-7&AP-8, AP-11&AP-12, AP-15&AP-16, and AP-19&AP-20 were analyzed for TPH diesel and were reported as non-detect for diesel. These five ( 5 ) soil samples did contain reported oil in the amounts of 220ppm for AP-4&AP-4, 380ppm for AP-7&AP-8, 190ppm for AP-11&AP-12, 210ppm for AP-15&AP-16, and 240ppm for AP-19&AP-20. Conclusions 1 . Laboratory investigation of the ten ( 10) composited soil samples analyzed for BTEX were reported as non-detect. 2. The five ( 5 ) composited soil samples analyzed for TPH gasoline were reported as non-detect. 3. The five ( 5 ) composited soil samples analyzed for TPH diesel were reported as non-detect for diesel, however, they were reported as containing varying amounts of oil. 4. On September 13, 1993, the laboratory results of the soil samples were discussed with Linda Turkatte from the San Joaquin County Public Health Services Office and she stated that the reported contents were not at levels to be considered a hazard. She gave verbal approval that the aggregrate material could be moved and used as previously proposed. Page 2