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Table 3 <br /> Technology Screening <br /> Former Chevron U S A Service Station 9-1918 <br /> 45 East Harding Way at EI Dorado Avenue <br /> Stockton, California <br /> Technology Retained Comment <br /> 1 Bioventing Yes Reduces mass, well understood Moderately easy to <br /> implement Hydrocarbon-affected groundwater in <br /> treated <br /> 2 Groundwater Extraction No Not effective at reducing mass, use for migration control <br /> not necessitated U site conditions <br /> 3 Soil Vapor Extraction Yes See Comment 1 <br /> 4 Sparging (in-situ) Yes Lithology and depth to water limit control of process and <br /> overall effectiveness (significant channeling would <br /> -probably occur) See Comment 1 <br /> 5 Chemical Treatment No Not applicable <br /> 6 Excavation Yes Well understood, requires transport of contaminants and <br /> significant construction activities <br /> r <br /> • <br /> 3201337B/CAP AMD DOC November 30, 1995 <br />