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S EGOR <br /> r <br /> USEPA. 1993. Supplemental Guidance To-,RAGS: Estimating Risk from Groundwater Contamination. <br /> i <br /> December. <br /> USEPA. 1996. BIOSCREEN Model.. <br /> USEPA, 2002. Draft Guidance for Evaluating Vapor Intrusion to Indoor Air Pathway from Groundwater <br /> and Soils(Subsurface Vapor Intrusion Guidance). <br /> USEPA. 2004a. USEPA Region 9 Preliminary Remediation Goals(DRGs)Tables. October. <br /> USEPA. 2004b. User's Guide for the Johnson and Ettinger Model for Subsurface Vapor Intrusion into <br /> Buildings (Revised). USEPA, 2004b. Pro-UCL Software, Version 3.00.02. April. <br /> USEPA. 2004c. Pro-UCL Software, Version 3.00.02. April. - <br /> U.S. Geological Survey(USGS). 2006. <br /> - F <br /> i <br /> 22 <br />