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San Joaquin County DIRECTOR <br /> PQ u i N Donna Heran, REHS <br /> Environmental Health Department ASSISTANT DIRECTOR <br /> 600 East Main Street <br /> Laurie Cotulla, REHS <br /> 2 ; <br /> Stockton, California 95202-3029 PROGRAM COORDINATORS <br /> Carl Borgman, REHS <br /> • 6 ;P.• Website: www. ov.or /ehd Mike Huggins, REHS, RDI <br /> s <br /> gtiFORd 19 9 Margaret Lagorio, REHS <br /> Phone: (209) 468-3420 Robert McClellon,REHS <br /> Fax: (209) 464-0138 Jeff Carruesco,REHS,RDI <br /> November 5, 2008 Kasey Foley,REHS <br /> �bf It.V <br /> Mr. Bill Borgh Hardev & Amarjit Khinda Etal <br /> ConocoPhillips 27000 S. Leeward <br /> 76 Broadway Tracy, CA 95304 <br /> Sacramento, CA 95812 <br /> Subject: Circle K/ Service Station #01205 RO#: 0138 <br /> 16470 Cambridge Drive Site Code: 507198 <br /> Lathrop, CA 95330 Global ID#: T0607700822 <br /> The San Joaquin County Environmental Health Department(EHD) has reviewed and received on <br /> Geotracker Work Plan for the Installation of Additional Soil Vapor Sampling Points dated <br /> September 30, 2008 and Revised Work Plan for Remediation Pilot Test dated October 20, 2008, <br /> both submitted by your consultant, Stantec, and has the following comments. <br /> The additional soil vapor sampling point locations (SV-3 through SV-7) are adequate and <br /> necessary and the plan is approved. [H&S Code 25296.10(c)(3)]. <br /> The revised plan for the remediation plan is adequate and necessary and the EHD recommends <br /> that since no monitoring points are down gradient from sparge points SP-3 and SP-6, these points <br /> not be included in the six-month pilot test. SP-2 also does not have a down gradient monitoring <br /> point, but the EHD considers this most upgradient ozone sparge point as an useful location in <br /> providing ozone/dissolved oxygen to the contaminated ground water near the former underground <br /> storage tank location. The plan is approved. [H&S Code 25296.10(c)(3)]. <br /> Please submit the Well Permit Application Forms and $89 fee per C-57 contractor to the EHD by <br /> November 25, 2008. <br /> If you have any questions, please contact Mr. Michael Infurna at(209) 468-3454. Mr. Infurna may <br /> also bebe r/ ached at minfurna s'cehd. m. <br /> /oJ' <br /> 4 X— <br /> Michael J. Infurna Jr`., RE Nuel C. Henderson Jr., PG <br /> Senior Registered Environmental Health Specialist Engineering Geologist <br /> MJI/nh <br /> c: Mr. James L. Barton, CVRWQCB- 11020 Sun Center Drive#200, Rancho Cordova, CA <br /> Mr. Mark Owens, SW RCB–Clean Up Fund -PO Box 944212, Sacramento CA 94244 <br /> Mr. Rusty Benkosky, Stantec Consulting-3017 Kilgore Rd, #100 Rancho Cordova, CA <br /> Ms. Helen C. Phillips Trust- 16087 Julie Lane, Lathrop CA. 95330-9557 <br />