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San Joaquin County <br /> oA `":'"..� Environmental Health Department DIRECTOR <br /> ?•'-��� •�G Donna Heran,REHS <br /> 600 East Main Street <br /> N Stockton, California 95202-3029 PROGRAM COORDINATORS <br /> Margaret Lagorio, REHS <br /> Robert McClsllon, RENS <br /> cq'•.. ..•` �P Website: www.sjgov.org/ehd Jeff Carruesco, REHS, RDI <br /> �r fipR� <br /> Phone: (209) 468-3420 Kasey Foley, REHS <br /> Fax: (209)464-0138 <br /> November 4, 2009 <br /> Thrifty Oil Company <br /> Mr. Chris Panaitescu <br /> 13116 Imperial Hwy. it"4 <br /> Santa Fe Springs, CA 90670 <br /> Subject: Thrifty Gas Station #171 LOP Case#: 1299 <br /> 1250 N. Wilson Way APN: 117-310-01 <br /> Stockton, CA 95205 Geotracker ID#: T0607700132 <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed Quarterly <br /> Remediation System Summary Reports Zd & 3rd Quarter 2009 submitted to Geotracker. Each <br /> report included a discussion and recommendation that requested the EHD approval for Thrifty <br /> Oil Company (Best) to submit a revised Feasibility Study, <br /> The EHD approved the groundwater extraction (GWE) batch tests previously and conclusions in <br /> both reports stated that this method is cost-prohibitive and will not be conducted. The EHD <br /> required Best to evaluate groundwater remedial alternatives. Best chose GWE and based on <br /> data collected, concluded that it is not cost-effective. Additional groundwater remedial <br /> alternatives must be evaluated and the EHD requires a revised Feasibility Study to be submitted <br /> to the EHD by December 14, 2009. <br /> On March 26, 2009, the EHD approved a no purge monitoring well sampling test for two <br /> monitoring wells at this site. The data was to be submitted comparing the no-purge sampling <br /> data to a three case volume purge sampling event. The EHD was to be advised if Best would <br /> continue to use the no-purge method. This data and comparison/conclusion has not been <br /> received. Please submit the data and conclusions for the comparative sampling events by <br /> December 14, 2009. <br /> If you have any questions lease contact Michael lnfurna at (209) 468.3454. <br /> Michael J. lnfurna Jr., R HS Margaret agorio, REHS <br /> Senior Registered Environmental Health Specialist Program Coordinator <br /> c: Mr, James L. Barton, CVRWQCB <br /> Mr. Mark Owens, SWRCB-CUF <br />