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Section 6 <br /> WASTE DISPOSAL PLAN <br /> This section provides guidelines for the handling of any wastes generated during the field activities. All soils <br /> brought to the surface will be screened with an instrument capable of analyzing volatile organic vapors by <br /> photoionization methods (photovac TIP 1). Soils which have an instrumental analysis reading of less than <br /> 25 ppm volatile organic compounds (VOC) will be stockpiled on-site, chemically analyzed to verify that it is <br /> clean,and then used to backfill the excavation. Soils which have instrumental analysis readings greater than <br /> 25 ppm VOC will be handled as a hazardous waste and will be separately stockpiled on-site and covered <br /> with visquene. These soils will either be aerated on-site or shipped to an off-site EPA-approved Class I <br /> disposal facility. No materials will be removed from the site prior to laboratory analysis. <br /> All drilling equipment will be steam cleaned between boreholes. The water collected during steam cleaning, <br /> as well as water removed from the wells during development and sampling, will be stored on-site in sealed <br /> Department of Transportation (DOT) 55-gallon drums. All drummed liquids will be sampled and properly <br /> disposed of based on analytical results. Disposable protective equipment will also be placed in approved <br /> 55-gallon DOT drums. <br /> California Uniform Hazardous Waste manifests will be completed by PG&E as required for the transport and <br /> disposal of any hazardous waste that may be generated during the investigation. <br /> 462891/42/PPU26 6-1 <br />