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1• Sampling of the three groundwater moni.nring wells on a bimonthly basis for a period <br /> Of six months. Water samples collected should be analyzed for purgeable <br /> halocarbons by EPA Method 601. <br /> 2. Excavation and rc-moval of the remaining contaminated soils located adjacent to the <br /> service garage. The excavation of soil will be accomplished using a hydrodigger to <br /> remove a vertical wall of soil approximately 30 inches wide,90 inches long and 10 feet <br /> deep. Cuttinge, from the hydrodigger will be placed into 55-gallon drums and <br /> disposed of off-sire at a Department of Health Services licensed Class II Iandfill. <br /> 3. Abandonment of the underground gasoline tank by filling the tank with a concrete ' <br /> T <br /> slurry. Excavation and removal of the tank is precluded due to its proximity to the <br /> foundation of the service garage. A Foundation Investigation Report prepared by <br /> R.W. Siegfried and Associates in 1989 has been included in Appendix 3. <br /> 4. Interpretation of the data collected and preparation of bimontYdy Monitoring Reports <br /> to Ipresent to the San Joaquin County De--� ty artment of Health.alth. A subsequent <br /> groundwater monitoring schedule will be proposed, if necessary, to the Department <br /> of Health at the end of the six month period. <br /> j . <br /> f; <br /> - t <br /> S <br /> .a € <br /> P, I 12211111101M <br />