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o^a�IN••c <br /> P.O.BOX 1810-1810 E.HAZELTON AVENUE <br /> m: THOMAS R. FLINN STOCKTON,CALIFORNIA 95201-3018 <br /> DIRECTOR (209)468-3000 FAX(209)468-2999 <br /> www.co.san-Joaqutn.ca.us <br /> THOMAS M.GAU <br /> DEPUTY DIRECTOR <br /> MANUEL SOLORIO Workkg for YOU <br /> DEPUTY DIRECTOR r j <br /> STEVEN WINKLER <br /> DEPUTY DIRECTOR <br /> BENTON ANGOVE OCT 3 0 2003 <br /> BUSINESS ADMINISTRATOR October 30 2003 <br /> Ms.Kim Schwab <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> 3443 Routier Road <br /> Sacramento, California"95'827 <br /> SUBJECT: CORRECTIVE ACTION PLAN BASED ON EVALUATION MONITORING <br /> FOR PAST VOC IMPACT AT FOOTHILL SANITARY LANDFILL <br /> Dear Ms. Schwab: <br /> As discussed,our evaluation monitoring at Foothill Landfill shows the groundwater in the vicinity of well <br /> MW-3 to be free of Volatile Organic Compounds (VOCs). This finding is consistent with data from <br /> monitoring well MW-3 since January 2002. We believe that the past transitory detections of VOCs were <br /> the result of a temporary increase in LFG production, itself caused by local ponding at the edge of the <br /> landfill immediately adjacent to MW-3. We believe that corrective grading several years ago was the <br /> corrective action needed. As long as reoccurrence of the ponding is prevented, we expect to remain in <br /> compliance. <br /> The Corrective Action Plan(enclosed)addresses the present and near-future conditions at the Foothill <br /> Landfill. Proposed corrective actions reflect the"non-detect"stdtus at all wells at this site. As required, <br /> this report addresses closure of Module"I",however,we address this issue in the context of our present <br /> compliance. This report is structured to conform to Title 27 Section 20425(d)(2). <br /> This report also provides a full and complete disclosure of data collected during the Evaluation <br /> Monitoring, and is submitted in-conformance with California Water Code Section 13267 per your letter of <br /> September 16, 2003. The information in this report,together with past Groundwater Monitoring reports, <br /> includes all groundwater monitoring data available to the County for this site. <br /> If you have any questions,please call me at(209)468-3066. <br /> Sincerely, <br /> W. MICHAEL CARROLL,PE <br /> Senior Civil Engineer <br /> WMC:mr <br /> N:\IFoothilAGroundwater Monitoring\EvalMonitPlan\KSchwab04-NewEMP.final.doc <br /> Enclosure <br /> C: Robert McClellon,Environmental Health Department <br /> LA 31610 <br />