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San Joaquin County <br /> Environmental Health Department DIRECTOR <br /> Donna Heran, REHS <br /> 2 as.G <br /> y y` 600 East Main Street <br /> Stockton, California 95202-3029 PROGRAM COORDINATORS <br /> Margaret Lagono, REHS <br /> Robert McClellon, REHS <br /> Website: www.Sjgov.org/ehd Jeff CaFoey, R RENS, RDI <br /> Kasey Foley, REHS <br /> Phone: (209) 468-3420 <br /> Fax: (209)464-0138 <br /> October 8, 2009 <br /> Mr. Victorio Aranda <br /> c/o Victor Aranda <br /> 1318 East Scotts Avenue <br /> Stockton, CA 95205 <br /> Subject: Former Electro Delta Site Code: 2241 <br /> 821 South Wilson Way <br /> Stockton, CA 95205 <br /> Dear Mr. Aranda, <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed Interim <br /> Remedial Action Work Plan (TRAP) dated September 14, 2009, submitted on your behalf <br /> by Advanced GeoEnvironmental, Inc. (AGE) and has the following comments. <br /> AGE proposes in the IRAP to initiate interim remediation by soil vapor extraction (SVE) <br /> utilizing the two existing SVE wells (VW-1 and VW-2) and groundwater monitoring well <br /> MW-5. The EHD approves initiating interim remediation by SVE, but approves the use of <br /> VW-1 only as an extraction point. This is the well used in the SVE pilot test conducted on <br /> July 29, 2008. In Soil Vapor Extraction Pilot Test dated November 4, 2008, AGE reported <br /> the radius of influence determined from the test on VW-1 was 40 feet. This distance is <br /> more than adequate to reach the areas of documented soil contamination at your site. <br /> Please proceed with applying for all required building and air pollution permits and with <br /> installation of the system. The deadline for start up of the interim remediation is <br /> February 1, 2010. <br /> If you have any questions please contact Lori Duncan at (209) 468-0337 or by email at <br /> Iduncan(a)sicehd.com. <br /> Sincerely, <br /> Lori Duncan, Senior REHS Margaro, REHS <br /> Registered Environmental Health Specialist Program Coordinator <br /> c: James Barton, CVRWQCB 11020 Sun Center Drive, #200 Rancho Cordova, CA 95670 <br /> Ally Colavita, AGE 837 Shaw Road, Stockton, CA 95215 <br /> Susan Oakden, 1200 Watt Avenue, Sacramento, CA 95864 <br />