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e,: A P.O.BOX 1810-1810E.HAZELTONAVENUE <br /> m: :s <br /> STOCKTON,C ORNIA96201 <br /> KRIS BALAJI {209}4883 68 FAX{209}42 <br /> DIRECTOR www.sigov,org/pubworks <br /> �Ct <br /> 0b" <br /> Working for YOU <br /> NIICHAEL SELLING <br /> DEPUTY DIRECTOR <br /> FRITZBUCHMAN <br /> DEPUTY DIRECTOR <br /> JN ST014E <br /> DEPUTY DIRECTOR <br /> NJIUEE ZARF November 4, 2016 <br /> INTERIM BUSINESS ADMINISTRATOR <br /> Mr. Howard Hold, P.G. <br /> Senior Engineering Geologist <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> 11020 Sun Center Drive, Suite 200 <br /> Rancho Cordova, California 95670-6114 <br /> SUBJECT: WELL INSTALLATION REPORT— PHASE I CORRECTIVE ACTION <br /> FOOTHILL SANITARY LANDFILL <br /> Dear Mr. Hold: <br /> San Joaquin County is hereby submitting the Well Installation Report for the Phase 1 of the corrective action <br /> measures at Foothill Sanitary Landfill. <br /> The County has installed five tri-level soil gas monitoring probes and four LFG extraction wells at WMU LF-1 <br /> per the approved Engineering Feasibility Study. The County also installed an additional four LFG extraction <br /> wells at LF-2 Module 1. <br /> All wells in LF-1 will continue to be monitored and adjusted to maximize LFG recovery operations without <br /> stressing methanogens or causing air infiltration into the unit. The adjustment and fine-tuning of the 13 <br /> extraction wells in LF-1 could continue into the spring of 2017 before optimum vacuum settings throughout the <br /> entire field are obtained. <br /> The County has ordered a complete set of TO-15 analytical tests for the new tri-level probes, once those <br /> results are obtained, a Phase II investigation work plan and schedule will be developed. The Phase II work <br /> plan and schedule will be included in the Second 2016 Semiannual Monitoring Report,which will be submitted <br /> in January 2017. <br /> If you have any questions, please contact me at(209) 953-7316. <br /> Sincerely, <br /> TAJ M. BAHADORI, PE <br /> Senior Engineer <br /> TMB:sc <br /> N:\1Foothill\RWQCB\Correspondence\Drafts\2016-11-04 FH Well Install Cover letter.docx <br /> Enclosure <br /> c: Jim Stone, Deputy Director/Operations(electronic copy) <br /> Desi Reno, Integrated Waste Manager(electronic copy) <br /> Robert McClellon, Environmental Health Department(electronic copy) <br />