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8 REFERENCES <br />American Society for Testing and Materials (ASTM). 1995. Standard Guide to Risk-Based Corrective <br />Action Applied at Petroleum Release Sites, ASTM E1739-95, Philadelphia, PA. <br />Cal/EPA. 2005. Use of California Human Health Screening Levels (CHHSLs) in Evaluation of <br />Contaminated Properties. (Cal/EPA), January 2005. Refer to pg. 2-7. <br />DTSC (Department of Toxic Substances Control). 2009. Use of the Northern and Southern California <br />Polynuclear Aromatic Hydrocarbon (PAH) Studies in the Manufactured Gas Plant Site Cleanup <br />Process. July 1, 2009. <br />DTSC. 2011. Office of Human and Ecological Risk (HERO). Human Health Risk Assessment (HHRA) Note <br />Number 1. "Recommended DTSC Default Exposure Factors for Use in Risk Assessment at California <br />Hazardous Waste Sites and Permitted Facilities", May 11, 2011. <br />http://www.dtsc.ca.gov/AssessingRisk/upload/HHRA Notel.pdf <br />OEHHA (Office of Environmental Health Hazard Assessment). 2005. Human-Exposure-Based Screening <br />Numbers Developed to Aid Estimation of Cleanup Costs for Contaminated Soil, Integrated Risk <br />Assessment Branch, Office of Environmental Health Hazard Assessment. (Cal/EPA), January 2005 <br />Revision. Available at: http://www.oehha.ca.gov/risk/Sb32soils05.html <br />OEHHA. 2009. OEHHA Cancer Potency Values as of July 21, 2009. <br />http://oehha.ca.gov/risk/pdf/tcdb072109alpha.pdf <br />OEHHA. 2010. Public Health Goals for Chemicals in Drinking Water, Benzo(a)pyrene. September 2010. <br />SF RWQCB ESLs. Regional Water Quality Control Board (RWQCB) Region 2 —San Francisco. 2008. <br />Screening for Environmental Concerns at Sites with Contaminated Soil and Groundwater. Interim <br />Final. May <br />USEPA. 1989. Risk Assessment Guide for Superfund (RAGS) Volume I Human Health Evaluation Manual <br />(Part A) EPA/540/1-89/002, Office of Emergency and Remedial Response. December. <br />USEPA. 2011. Integrated Risk Information System (on-line database of toxicity parameters). Accessed <br />May 2011. http://www.epa.gov/IRIS/ <br />10