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San Joaquin County DIRECTOR <br /> • op66 N C Donna Heran, REHS <br /> Environmental Health De „artment <br /> !j. _,� - q •, M ASSISTANT DIRECTOR <br /> 600 East Main Street Laurie Cotulla. REHS <br /> Stockton , California 95202-3029 <br /> PROGRAM COORDINATORS <br /> • — - - — - - -- - Carl Bergman, REHS <br /> Website: www �9 91ehd.S ov.of MHuggins, RENS, RDI <br /> �iFpPa Maarr garet Lagorio, REHS <br /> Phone: (209) 468-3420 Robert McClellon. REHS <br /> Fax: (209) 464-0138 Jeff Carruesco, REHS, RDI <br /> Kasey Foley, REHS <br /> January 12, 2009 <br /> David Atwater <br /> Van De Pol Enterprises <br /> P O Box 1107 <br /> Stockton CA 95201 <br /> Subject: California Fuels Station <br /> 2402 Pacific Avenue <br /> Stockton CA 95204 <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed <br /> Quarterly Report — Third Quarter 2008 (QR) dated November 11 , 2008, prepared by <br /> Advanced GeoEnvironmental, Inc. (AGE). The EHD has the following comments: ! "Jjoabu� l <br /> The EHD had directed by letter dated September 2, 2008, submission of workplans to ;sa%✓� ” <br /> the EHD by November 7, 2008, for conducting a rebound test of the soil vapor aft. <br /> extraction/insitu air sparging (SVE/IAS) system, conducting a soil vapor survey, and ` <br /> implementation of the tracer test of monitoring well MW-13A through MW-13C. In the <br /> QR, AGE responded to the EHD directive by recommending preparation of a workplan to <br /> conduct an SVE rebound test, implementation of a ground water tracer test at well <br /> MW-13 (A-C), and preparation of a soil-gas vapor intrusion investigation work plan. AGE <br /> also recommended preparation of a workplan to advance one confirmation soil boring in <br /> an area 5 feet to 15 feet north-northwest of well AW-2 and if petroleum-impacted soil <br /> should be encountered in the confirmation soil boring , convert the boring to a soil vapor <br /> extraction well. <br /> The EHD directs that the work plans to conduct the rebound test of the SVE/IAS system, <br /> advance the proposed confirmation soil boring, and to conduct a soil vapor investigation <br /> be submitted to the EHD for review by February 13, 2009; include a technical <br /> justification for the selected sampling points. The EHD also directs that the ground water <br /> tracer test at well MW-13 (A-C) be implemented by February 13, 2009. Please provide <br /> the EHD a minimum 48-hour notice prior to initiation of any field tests or work. <br /> If you have any questions, please contact Frank Girardi, Senior Registered <br /> Environmental Health Specialist, at (209) 953-7868. / <br /> A <br /> �L <br /> Frank Girardi, REHS-ON Nuel C. He derson, Jr. , PG <br /> Senior Register Environmental Health Specialist Engineering Geologist <br /> cc: Timothy Cuellar, Project Geologist, AGE, 837 Shaw Road, Stockton, CA 95215 <br /> cc: James Barton, RWQCB, 11020 Sun Center Dr. #200, Rancho Cordova, CA 95670 <br />