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Page 1 of 1 <br /> Frank Girardi [EH] <br /> From : Frank Girardi [EH] <br /> Sent: Wednesday, June 23, 2010 3: 19 PM <br /> To : 'acolavita@advgeoenv.com' <br /> Cc: Nuel Henderson [EH] <br /> Subject: 1901 EI Dorado FS DPE WP dated 5/24/10 <br /> Ally, <br /> In follow-up to our conversation, the EHD reviewed the DPE interim remediation work plan dated 5/24/10. The <br /> EHD could not locate a Feasibility Study (FS) that identifies DPE as the most cost-effective technology for the <br /> site. The cost effectiveness would need to be evaluated prior to approving it. In addition, we need to have mass <br /> estimates prepared for sorbed contaminants in the vadose and saturated zones and what will each component <br /> (SVE, GWE) will address . The EHD shall send out a response letter addressing the need for a Feasibility <br /> Study and mass estimate. If you have any questions please contact me. Thanks . <br /> Frank Girardi, Senior REHS <br /> San Joaquin County Environmental Health Department <br /> 600 E. Main Street <br /> Stockton , CA 95202 <br /> (209) 953-7868 (Office) <br /> (209) 468-0341 (Fax) <br /> e-mail : fgirard_ @sjcehdcom. <br /> i <br /> i <br /> i <br /> f <br />'t <br /> i <br /> i <br /> i� <br /> rl <br />;i <br /> Ifs <br /> i <br /> F <br /> 6/23/2010 <br />