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Department of Toxic Substances Control <br /> Matthew Rodriquez Barbara A. Lee, Director Edmund G.Brown Jr. <br /> Secretary for 8800 Cal Center Drive Governor <br /> Environmental Protection Sacramento, California 95826-3200 <br /> TO: Lance McMahan, Project Manager <br /> Site Mitigation and Restoration Program <br /> 8800 Cal Center Drive <br /> Sacramento, CA 95826 <br /> FROM: Edward A. Fendick, Ph.D., Staff Toxicologist 4 '�,4,X <br /> Ecological Risk Assessment Section (ERAS) <br /> Human and Ecological Risk Office (HERO) <br /> 8800 Cal Center Drive <br /> Sacramento, CA 95826 <br /> DATE: 15 June 2018 <br /> SUBJECT: ERAS COMMENTS: PORT OF STOCKTON RESPONSE TO DTSC <br /> AND RWQCB COMMENTS ON THE GROUNDWATER MONITORING <br /> WORK PLAN, ROUGH AND READY ISLAND, PORT OF STOCKTON, <br /> STOCKTON, CALIFORNIA. <br /> Project: DTSC101662-11 Activity: 12018 <br /> Per your EnviroStor work request, ERAS has reviewed the Port of Stockton's (Port's) <br /> response to ERAS's comments on the island-wide groundwater monitoring plan for <br /> Rough and Ready Island (RRI) and the results from groundwater samples collected <br /> from Site 3 which were analyzed for perfluoro- and polyfluoro-alkyl substances (PFAS; <br /> 'PFAS Memo'). This memorandum provides ERAS's follow-up comments on the Port <br /> response. <br /> DOCUMENT REVIEWED: <br /> Appendix A: Response to DTSC and RWQCB Comments, Submittal: Groundwater <br /> Monitoring Work Plan, Rough and Ready Island, Pon`of Stockton, Stockton, California <br /> (GMWP). 1 June 2018. Prepared for: Port of Stockton, Stockton, California. Prepared <br /> by: Geosyntec Consultants, Rancho Cordova, California. ERAS received an electronic <br /> version of the document on 1 June 2018. <br />