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Former Beacon Station No.12 474 7/25/2002 <br /> Stockton California Additional Deleniation Work Plan <br /> ~ Task 5 Submit the groundwater samples, under chain of custody documentation to a <br /> certified laboratory to be analyzed for TPHg, BTEX, and the fuel oxygenates <br /> methanol, ethanol, tertiary butanol, MTBE, DIPE, ETBE, TAME, and the lead <br /> scavengers 1,2-DCA, and EDB. <br /> Task 6 Prepare and submit a report detailing field methods, results and conclusions of <br /> this investigation and if appropriate a revised PAR/CAP. <br /> Interim Soil Remediation Scope <br /> i <br /> Task 1 Design and submit permits for installation of an interim soil vapor extraction <br /> system (SVES). These permits include an authority to construct (ATC) from <br /> the San Joaquin Valley Air Pollution Control District, and building and <br /> electrical permits from the City of Stockton and utility companies. <br /> Task 2 Install subsurface PVC piping from selected vapor extraction wells to a <br /> remediation compound location. During installation of the VES piping <br /> additional piping for air sparging or groundwater extraction should be installed <br /> to minimize the cost of upgrading the final treatment system. <br /> Task 3 Install remediation equipment in the compound for extracting and abating <br /> hydrocarbons from the subsurface. As "indicated in the previously submitted <br /> CAP, soil vapor extraction has been shown effective in removing hydrocarbons <br /> from the subsurface at this site. <br /> Task 4 Prepare a report documenting installation of the interim SVES and results of <br /> the startup. <br />�I <br /> C:\Projects\1474\13\1474-13.wp.doc <br /> 1474-13.wp 4 HORIZON ENVIRONMENTAL INC. <br />