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San Joaquin County <br /> Environmental Health Department DIRECTOR <br /> Donna Heran,REHS '1v` <br /> 600 East Main Street 7 <br /> PROGRAM COORDINATORS <br /> l• Stockton, California 95202-3029 Robert McClellon,REHS <br /> Jeff Carruesco, REHS,RDI <br /> r <br /> Website: www. ov.or /ehd Kasey Foley,REHS <br /> is <br /> c�C! o• Fi`P jg g Linda Turkatte, REHS <br /> Phone: (209)468-3420 <br /> Fax: (209)464-0138 <br /> May 3, 2011 <br /> Thrifty Oil Company <br /> Mr. Chris Panaitescu <br /> 13116 Imperial Hwy. <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 Work Plan for <br /> Soil Vapor Survey and Health Risk Assessment (Plan), dated February 14, 2011, which had <br /> been submitted to Geotracker. The Plan was included in Letter of Intent/Request for Low Risk <br /> Closure, also dated February 14, 2011. <br /> The Plan details the installation of shallow soil gas sampling probes on site in preparation of a <br /> vapor intrusion evaluation required for underground storage tank site closure and proposes five <br /> foot deep push points, sampling, and on-site mobile laboratory analyses for gasoline range <br /> organics, volatile organics and fuel oxygenates. The probes are proposed to be destroyed by <br /> removing the 0.125-inch Teflon tubing and sealing the surface of the probe with concrete. <br /> The Plan is adequate and necessary and approved with the following changes. [H&S <br /> 25296.10(c)(3)]: <br /> • Destruction of the probes requires the removal of all materials introduced into the push <br /> point and is to be done on the same day installed. The micro-porous screen, the sand <br /> pack, and the bentonite granules are to be removed and the hole filled with neat cement <br /> grout. A concrete patch may be applied to the surface to match conditions. <br /> • Submit a Well Permit Application and $488 fee by May 16, 2011. <br /> If you have any questions, please contact Michael Infurna at (209)468-3454. <br /> �Z5'/Michael J. Infurna Jr., REHS Adrienne Ellsaesser, REHS <br /> Senior Registered Environmental Health Specialist Acting Program Coordinator <br /> C'. Mr. James L. Barton, CVRWQCB, Underground Storage Tank Unit, 11020 Sun Center <br /> Drive, #200, Rancho Cordova, CA 95670-6114 <br /> Mr. Richard Vogl, GeoHydrologic Consultants, PO Box 2234, Hunting Beach, CA 90670 <br />