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� t <br /> San Joaquin County <br /> oP°."'" .C, Environmental Health Department DIRECTOR <br /> Donna Heran,REHS <br /> z: 1868 East Hazelton Avenue <br /> c: PROGRAM COORDINATORS <br /> N: Stockton, California 95205-6232 <br /> Robert McClellon, REHS <br /> Jeff Carruesco, REHS, RDI <br /> Kase• q . Website: www.sjgov,org/ehd Linda Foley,RENS <br /> c .�i F o•R`'�P Linda Turkatte, RENS <br /> Phone: (209) 468-3420 Rodney Estrada, REHS <br /> Fax: (209) 464-0138 Adrienne Ellsaesser,REHS <br /> August 26, 2013 <br /> U-Haul/Amerco Real Estate Company <br /> Attn: Larry Hine <br /> 2727 N Central Ave., Suite #500 <br /> Phoenix, AZ 85004 <br /> Subject: U-Haul #710050 Site Code: 1772 <br /> 2701 N Wilson Way <br /> Stockton, CA 95215 <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed Closure <br /> Report (Report) prepared by your consultant Cardno ATC on your behalf for the subject site. <br /> The EHD met on August 21, 2013, with the Central Valley Regional Water Quality Control Board <br /> (CVRWQCB) to discuss the Report and closure consideration for the site. It was determined <br /> that additional information is needed before closure considered can be completed. <br /> Please provide the EHD and the CVRWQCB the following items: <br /> 1.) An estimate of the contaminant mass in the soil and the groundwater before and after <br /> corrective action <br /> 2.) The estimated time required for the residual groundwater contaminants to reach water <br /> quality objectives (WQOs) <br /> 3.) A human health risk assessment for vapor intrusion, ingestion, and direct contact for the <br /> impacted soil between surface grade and 10 feet below surface grade <br /> 4.) The established radius of influence, in terms of vacuum and distance, of the soil vapor <br /> extraction remediation system <br /> 5.) An update on the status of all sensitive receptors within 1000 feet of the site including, but <br /> not limited to, the private well identified at the Precision Fence Company property approximately <br /> 450 feet south of the site and the public well identified at the property 300 feet east of the site <br /> Please submit the requested information by October 18, 2013, for further review and comment <br /> by the EHD and the CVRWQCB. <br />