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w Wrerswar.c. SACRAMENTO N as needed to maintain soil moisture. If a leachate collection system is utilized, the leachate will be diluted and reapplied to the entire plot. Every two weeks, a random grid soil sampling (EPA SW846) will be made and samples will be analyzed for TPH. Should the laboratory analytical results indicate that it is necessary, a second application of bacteria will be made after four to six weeks. When analyses indicate that levels of 100 mg/kg TPH or less have been obtained, the soil will be removed from the site and disposed of at a Class III landfill . Should the amount of contaminated soil exceed the amount of land required for treatment, the remediation would be done in batches. The noncontaminated soil used to construct the earthen berm will be w used as fill in the excavation or to improve the grade of the facility. 5.4.2 Untreated Disposal of Contaminated Soil The alternative to bioremediation of the diesel contamination is the removal and disposal of the untreated soil to a Class I waste repository which accepts petroleum contaminated products. The contaminated soil will be laid out on polyethylene sheeting as it was excavated. A separation of less contaminated soil from highly contaminated soils will be made. This determination will be by soil location, visual examination, and headspace analysis. After being laid out, a grid coordinate system will be established (EPA SW846) and soil samples taken for laboratory analyses for TPH. Based upon analytical results, the contents of each separate pile will be manifested as either nonhazardous or hazardous. Disposal costs will reflect the classification and manifest for each pile. 6.0 CONCLUSIONS The Pacific Bell Ashley Road facility has significant soil contamination, however, the contamination does not appear to have reached ground water. While many possible means of remediation are i. 18