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San Joaquin County <br /> Environmental Health Department DIRECTOR <br /> �" Donna Heran,REHS <br /> a 1868 East Hazelton Avenue <br /> Stockton, California 95205-6232 PROGRAM COORDINATORS <br /> �' Robert McClellon,REHS <br /> •• Jeff Carruesco, REHS,RDI <br /> Kasey Foley,REHS <br /> 4 i F O 1i Website: www.sjgov.org/ehd Linda Turkatte,REHS <br /> Phone: (209) 468-3420 <br /> Fax: (209)464-0138 <br /> February 22, 2013 <br /> Andrew Eggiman <br /> c/o Robert Eggiman <br /> PO Box 580 <br /> Mountain Ranch, CA 95246 <br /> Subject: Eggiman's Hydraulic <br /> 1112 East Harding Way <br /> Stockton, CA 95205 <br /> The San Joaquin County Environmental Health Department (EHD) sent you a letter dated <br /> September 12, 2013 stating that the site may be a candidate for closure under the Low <br /> Threat Closure Policy (LTCP) and advised you and your consultant ATC Associates, Inc. <br /> (ATC) to discuss the site for closure. Provide a report thirty days from the date of this letter <br /> to the EHD that the site meets all criteria for closure under the LTCP by March 25, 2013. <br /> If you wish to have your site considered for closure under the LTCP, please provide a closure <br /> report that demonstrates how your site meets the general and site-specific criteria of the <br /> LTCP and please include the following: <br /> 1. A calculation of the residual contaminant mass both sorbed in soil and dissolved in <br /> groundwater. <br /> 2. A prediction of how long (in years) it will be until the dissolved contaminant <br /> concentrations on site decline to reach water quality goals. <br /> 3. A discussion of the potential vapor intrusion threat from the residual contamination in <br /> both soil and groundwater. <br /> 4. Confirmation that a sensitive receptor survey has been completed for this site with a <br /> brief summary of findings and reference to the report, and <br /> 5. All requirements of the Tri-Regional Guidelines Appendix A. <br /> If you have any questions please call Lisa Medina at (209) 468-3455, or by email <br /> Imedina@sicehd.com. <br /> Lisa Medina, REHS Nuel C. Henderson Jr., PG <br /> Senior Registered Environmental Health Specialist Engineering Geologist <br /> c: James Barton, CVRWQCB, 11020 Sun Center Drive #200, Rancho Cordova, CA 95670 <br /> Jeanne Hornsey, ATC, 1117 Lone Palm Ave, Suite B, Modesto, CA 95351 <br />