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14.41 <br /> San Joaquin County <br /> N. Environmental Health Department DIRECTOR <br /> Donna Heran, RENS <br /> 1868 East Hazelton Avenue <br /> PROGRAM COORDINATORS <br /> Stockton, California 95205-6232 <br /> Robert McClellon,REHS <br /> _, Jeff Carruesco,RENS, RDI <br /> Kasey <br /> C9 <br /> Website: www.sjgov.org/ehd Linda Foley,RENS�i F o Linda Turkatte,REHS <br /> Phone: (209)468-3420 <br /> Fax: (209) 464-0138 <br /> July 16, 2012 <br /> Jon Armstrong Albert Scannavino <br /> BP West Coast Products LLC Scannavino Properties <br /> 501 Westlake Park Boulevard 5463 Cherokee Lane <br /> WL 1-28. 160D Stockton, CA 95215 <br /> Houston, TX 77079 <br /> Subject: ARCO Station #595 <br /> 6100 North Highway 99 <br /> Stockton, CA 95212 <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed Soil Vapor <br /> Extraction (SVE) Pilot Test Work Plan (Plan) dated June 22, 2012, submitted on your behalf by <br /> ARCADIS. In the plan, Arcadis proposes to install two soil vapor extraction wells utilizing 4-inch <br /> PVC casing nominally screened from 55 to 70 feet below surface grade in 10-inch borings with <br /> a sand filter pack from total depth, to approximately 2 feet above the screened interval. This will <br /> be followed by 2 feet of transition sand and finished with neat cement grout to near ground <br /> surface. The two new soil vapor extraction wells and monitoring well MW-4R will be utilized to <br /> conduct an SVE pilot test to evaluate the technology and to design a remediation system if <br /> found technically and economically feasible. Proceed with obtaining permits from the EHD for <br /> the installation of the vapor extraction and monitoring wells. <br /> If you have any questions please call Lisa Medina at (209) 468-3455. <br /> Sincerely, /v <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, Suite 200, Rancho Cordova, CA 95670 <br /> David Evans, ARCADIS, 950 Glenn Drive, Suite 125, Folsom, CA 95630 <br />