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performed. The first will occur prior to excavati A Simco 2800H P please drill rig with a 6-inch hollow stem auger and split spoon sampler will be used to obtain samples at 1 ft, 3 ft, 5 ft and 10 ft. The second phase of sampling, to be done after the tank, fill and concrete have been removed, will allow soil samples to be taken at 6 in. to 1 ft below the excavation. Manned entry into the excavation is not expected to be necessary because a hand auger with an extension handle will be used to collect these samples. Selected samples will be analyzed for the appropriate groups of contaminants listed below, using the methods indicated: Total Extractable Fuel Hydrocarbons EPA SW846 Method 8015/3550 Ethylene Glycol and Isopropyl Alcohol EPA SW846 Method 8015/3550 modified Volatile Organics EPA SW846 Method 8240+ Semi-Volatile Organics EPA SW846 Method 8270+ Total Oil and Grease Standard Method 503D Soluble Metals CAM WET (for STLC) Those soil samples not selected for analysis will be stored in a freezer for follow-up analysis, if needed. The four borings in the gully will be filled with grout after the samples have been taken. Although the tank was tested and found to be leak tight, there may have been instances when rain runoff washed over the concrete pad underlying the drum rack. This may have possibly spread residue from the pad to soil in a localized area around the tank. Locally contaminated soil, if found, will be removed and disposed of as hazardous waste at the time of closure. Any wide spread contamination found to be present will be addressed under the Remedial Investigation/Feasibility Study at B815 and the General Services Area (Task 6 in the Site 300 Environmental Restoration Work Plan submitted to the RWQCB Central Valley Region; July 13, 1988; UCAR-10247) .