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UY/Ii/YVu] U-4V FAX m012/0 i; <br /> • ` Jerry Ule Page 7 <br /> February 2,2005 <br /> the complete data sets as well as the data sets proposed for use in the HHRH In electronic <br /> formal to ensure site characterization Is adequate for HHRH purposes;and(3)preparation <br /> of the revised HHRH consistent with comments provided In HERD's September 9,2004 <br /> and September 26, 2004 memoranda using the DTSC/HERD approved HHRA data set. <br /> REFERENCES <br /> Department of Toxic Substances Control(PTSC), 1099. Preliminary Endangerment <br /> Assessment Guidance Manual. <br /> DTSC, 2003. Advisory—Active Soil Gas investigations. January 28,2003. <br /> DTSC, 2004. Guidance for the Evaluation and Mitigation of Subsurface Vapor intrusion <br /> to indoor Air, December 15,2004. <br /> SECOR intematanal lnoorporated,2003. WelllnstaHeflon and DPE Feasibility Test <br /> Report, January 24,2003. <br /> U.S; EPA, 1989. •R1skAssessmenf Guidance for Superfund. Volume 1. Human Health <br /> Evaluation Manual. Part A. December 1989, <br /> U.S. EPA, 1992. Final Guidance on Data Useability in Risk Assessment(PadA). April <br /> 1992. <br /> U.S. EPA, 1996. Soil Screening Guidance:Technfcal.Background Document. <br /> EPA1540IR-95/128, May 1996. <br /> Reviewed by. David L.Barry, Ph.D. <br /> Senlor Toxicologist - <br /> Sdence, Pollution Preventlon and Technology Program <br /> Human and Ecotogicat Risk Division <br /> • 05020RJLAOG - <br />