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T�"e� .� Re <br /> f-� <br /> 1'wk <br /> ChevronjStockton 11 <br /> November 1989 <br /> After installation, well development will be accomplished <br /> using alternative surging and bailing, and if required, pumping <br /> .� of the wells. Development will continue until Water removed from <br /> the well is essentially free of sand and silt. <br /> After well development, the wells will be monitored and <br /> sampled. Standard Operating Procedure (SOP) 8 describes GTI <br /> monitoring procedures and SOP& 9 and 12 explain water-sampling <br /> techniques. Samples from all three wells will be analyzed for , <br /> the presence of STEX and TPH-as-gasoline by modified EPA Methods <br /> 5030/8020/8015. Additia:__lly, samples from the well located <br /> adjacent to the waste-oil tank will be analyzed for TPH-as- <br /> diesel, TOG, TPH-as-waste oil, and for the presence of Cd, Cr, <br /> Pb, and Zn, as described in the section on soil sampling. <br /> REPORTING <br /> -- A detailed report will be prepared outlining the activity <br /> and results of the Excavation program. This report will include <br /> plans for disposal of the excavated soil as well as plans for the <br /> next phase of site investigation and remediation. <br /> CFASURE <br /> Groundwater Technology, Inc. is pleased to provide Chevron <br /> U.S.A. Inc. with this work plan. We trust that the program <br /> i,)resented in the work plan meets your requirements a this time <br /> for the subject site. <br /> GHm A1A%%TF.H <br /> .- Z£CHiulAx;1;ixC. <br /> J <br />