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X1,11 <br /> San Joaquin County <br /> DIRECTOR <br /> Po IJiN Environmental Health Department Donna Heran,REHS <br /> 600 East Main Street <br /> PROGRAM COORDINATORS <br /> c: < Stockton, California 95202-3029 Robert McClellon,REHS <br /> Jeff Carruesco,REHS,RDI <br /> Ll!Sla- Kasey Foley,REHS <br /> rp , Website: WWW.Sjgov.org/ehd Linda Turkatte,REHS <br /> Q��F ORc� Phone: (209)468-3420 <br /> Fax: (209)464-0138 <br /> September 26, 2011 <br /> Mr. Sergio Moreschalchi <br /> Diggler and Wad LLC Atlantic Richfield Company <br /> Mr. Scott Damouny PO Box 1257 <br /> 2707 E. Fremont St., Suite 14 San Ramon, CA 94583 <br /> Stockton, CA 95205 <br /> APN: 141-240-23 <br /> Subject: former ARCO Gas #443 Site Code: RO#: 1781 <br /> 2478 E. Oak Street Global ID#: T0607798060 <br /> Stockton, CA 95205 <br /> WORKPLAN: MW-1S Rehabilitation and Bulk Extraction (GW) <br /> DATED: September 20, 2011 <br /> PREPARED BY: Brian Westhoff, P.G, Stantec Consulting Corp. <br /> STATUS: APPROVED with conditions noted below. <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORKPLAN Health & Safety Code <br /> (H&S) Section 2529600(c)(3)1: <br /> • As directed by the EHD, take physical and mechanical steps to remove the blockage in <br /> existing monitoring well, MW-1 S, obstructed since May 2010. <br /> • Resume batch groundwater extraction from existing monitoring well MW-1S monthly for <br /> six months. Extracted water will be hauled off-site for treatment by ARCO. <br /> • Submit a report of findings to the EHD (Geotracker). <br /> COMMENTS AND CONDITIONS: <br /> If MW-IS cannot be cleared of the obstruction or cannot be used to conduct the batch <br /> I action proposal is to be submitted to the EHD <br /> extractions, an alternate remedia <br /> (Geotracker)within 30-days of that decision. The proposal is to contain a plan to <br /> destroy and replace MW-1 S if it cannot be purged and used as a monitoring well for the <br /> collection of groundwater samples. <br /> REASONS FOR DISAPPROVAL OF THE WORKPLAN (H&S Section 25296.10(c)(3)]: <br /> none. <br /> BY <br /> Michael Infurna, Senioregist-red Environmental Health Specialist <br /> (209) 468-3454 <br /> c: Mr. James L. Barton, CVRWQCB, Underground Storage Tank Unit, 11020 Sun Center <br /> Drive, #200, Rancho Cordova, CA 95670-6114 <br /> Mr. Kirk Larson, Underground Storage Tank Cleanup Fund, State Water Resources <br /> Control Board, P.O. Box 944212, Sacramento, CA 94244-2120 <br /> Mr. Brian Westhoff, Stantec, 3017 Kilgore Rd., #100, Rancho Cordova, 95670 ub <br />