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San Joaquin County <br /> Environmental Health Department DIRECTOR <br /> Donna Heran, REHS <br /> 1868 East Hazelton Avenue <br /> } :� Stockton, California 95205-6232 PROGRAM COORDINATORS <br /> Robert McClellon, REHS <br /> - Jeff Carruesco, REHS, RDI <br /> Website: www.sjgov.org/ehd Kasey Foley, REHS <br /> Linda REHS <br /> Phone: (209) 468-3420 Rodney Estrada, REHS <br /> Fax: (209) 464-0138 Adrienne Ellsaesser,REHS <br /> April 29, 2013 <br /> Brian A. Waite Christine Coroneo <br /> Chevron Env. Mgmt. Company Sutter Office Center <br /> 6101 Bollinger Canyon Road, BRIX-5321 2001 Union Street#300 <br /> San Ramon, CA 94583 San Francisco, CA 94123 <br /> Subject: Former Chevron Station 9-8227 <br /> Sutter Office Center <br /> 242 Sutter Street <br /> Stockton, CA 95202 <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed Site <br /> Closure Request(Request), dated December 5, 2012, submitted on your behalf by Arcadis. <br /> The EHD reviewed the site for compliance with the LTCP criteria and found that in general <br /> the site appears to fit most criterions, but applicable soil data collected from surface to 10 <br /> foot bellow surface ground (bsg) for the Health and Human Risk Assessment (HHRA) was <br /> sparse to lacking. In the Request, Arcadis stated that the site meets all criteria outlined in <br /> the Low Threat Closure Policy (LTCP) and recommended the site for closure. However, after <br /> review and discussion with the Regional Water Quality Control Board it was concluded that <br /> with the additional information noted below submitted to the EHD, closure consideration and <br /> evaluation can be completed. Please submit the following: <br /> 1) Residual contaminant mass estimates-, and <br /> 2) Time required to reach water quality objectives (WQOs) <br /> If you have any questions please call Lisa Medina at (209) 468-3455. <br /> Sincerely, <br /> r � <br /> C:5 <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 Ste. 200 Rancho Cordova, CA 95670 <br /> Justin Sobieraj, ARCADIS U.S., Inc., 2000 Powell St., 7th Floor, Emeryville, CA 94608 <br />-ft-­Nmm�- - <br />