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San Joaquin County <br /> Aa"!" Environmental Health Department <br /> DIRECTOR <br /> 600 East Main Street Gonna Heran, REHS <br /> 2' <br /> Stockton, California 95202-3029 PROGRAM COORDINATORS <br /> Robert McClellon,REHS <br /> Jeff Carruesco, REHS, RDI <br /> Cq(j)E"bot �P Website: www.sjgov.org/ehd Kasey Foley,REHS <br /> Phone: (209)468-3420 Linda Turkatte, REHS <br /> Thomas Altwies Fax: (209)464-0138 <br /> Manna Pro Products, LLC <br /> 707 Spirit 40 Park Drive, Suite 150 <br /> Chesterfield, MO 63005 <br /> RE: 4004 S. EI Dorado, Stockton, CA Site Code: 1088 <br /> WORK PLAN: Monitoring Well Destruction/Decommissioning <br /> DATED: March 30, 2012 <br /> PREPARED BY: GeoPhase Environmental <br /> APPROVED: [XI <br /> ADE UATE AND NECESSARY ELEMENTS OF THE WORK PLAN [H&S 25296.10 (c)(3)1: <br /> 1. To destroy 39 on-site and off-site monitoring and remediation wells. <br /> 2. To over-bore wells in contaminated source areas and pressure grout well in <br /> uncontaminated areas outside source area. <br /> 3. To seal wells by over-boring from total depth to 3 feet below surface grade with neat <br /> cement. <br /> 4. When using pressure grouting,remove casing 2.5 feet to below surface grade and seal <br /> wells from total depth 6 inches above the well casing to two feet below ground surface <br /> with neat cement <br /> 5. To provide the EHD a Well Destruction Report upon completion of the proposed work. <br /> COMMENTS AND CONDITIONS: <br /> 1. To clear wells to the required depth below ground surface before drilling. <br /> 2. To use only a neat cement slurry for sealing wells and tremie.placement where <br /> necessary. <br /> 3. To obtain all required Permits prior to beginning work. <br /> 4. To provide the EHD a Well Destruction Report within 90 days of work completion. <br /> 5. To remove all equipment and affected material within 90 days of well destruction. <br /> DATED BY / <br /> Harlin Knoll, Senior REHS (209) 468-3442 <br /> Cc: GeoPhase Envionmental, 2937 Veneman Ave., Suite B240, Modesto, CA 95356 <br />