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I 3 <br /> Soil Boreholes and Temporary Groundwater Monitoring Wells <br /> Fourteen soil boreholes will be drilled and sampled. Proposed soil borehole locations are <br /> shown on Figure 1. All boreholes will be continuously cored for lithologic identification. <br /> Samples will be collected every 5 feet for possible laboratory analysis. Samples will be screened <br /> in the field using visual methods and a photoionization detector or organic vapor analyzer. Four <br /> samples per borehole will be submitted to the laboratory for analysis. Four of the boreholes will <br /> Lbe advanced 10 feet into groundwater, estimated to be 60 feet below ground surface at the site. <br /> Two-inch diameter PVC casing will be set in the boreholes. Groundwater levels will be allowed <br /> to stabilize for 24 hours. After 24 hours, water levels will be measured in the four temporary <br />+ groundwater monitoring wells, the presence of free product, if any, will be determined, a grab <br /> sample of groundwater will be collected, and the PVC casing removed from the borehole. All <br /> Lrt boreholes completed above groundwater will be backfilled with individual cuttings from each <br /> borehole. The four boreholes advanced into groundwater will be backfilled with concrete grout <br /> from bottom to top. Excess cuttings will be placed in a bioremediation cell currently operating <br /> at the site. <br /> Soil and water samples will be analyzed for total petroleum hydrocarbons as gas, diesel and <br /> r = motor oil, and for benzene, toluene and total xylenes by EPA Methods 5030/modified 8015/8020 <br /> (602) and 3550 (3510)/modified 8015. <br /> Site Safety and Health Plan <br /> LJt <br /> A Site Safety and Health Plan will be developed and implcmented during this investigation. <br /> The Site Safety and Health Plan will be available on site for inspection by appropriate regulatory <br /> agencies. <br /> Quality Assurance Plan <br /> The procedures to be followed in sample collection, identification, and handling at the <br /> Sheldon Stockton site are described in the Quality Assurance Plan section of Appendix A. <br /> Report <br /> Are ort will be prepared detailing <br /> the field techniques used during the investigation as well <br /> tl g g <br /> f as the results of-the investigation. Conclusions and recommendations for further work will be <br /> Lpresented. <br /> f <br /> f <br /> 7603,REPO RTS\S HE.LDO?G.W P € <br />