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PpUI/y <br /> �o coG COUNTY OF SAN JOAQUIN THOMAS R. FLINN <br /> DEPARTMENT OF PUBLIC WORKS DEPUTY DIRECTOR <br /> P.O.BOX 1810-1810 E.HAZELTON AVENUE <br /> C4C%F0Ra`P STOCKTON,CALIFORNIA 95201 <br /> THOMAS M. GAU <br /> (209)468-3000 DEPUTY DIRECTOR <br /> MANUEL LOPEZ FAX(209)468-2999 <br /> DIRECTOR <br /> STEVEN WINKLER <br /> DEPUTY DIRECTOR <br /> October 16, 2000 <br /> Wendy Arano <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> 3443 Routier Road <br /> Sacramento, California 95827 <br /> SUBJECT: CORRAL HOLLOW SANITARY LANDFILL MONITORING <br /> Dear Ms. Arano: <br /> Enclosed is a copy of the Third Quarter(2000)Monitoring Report for the Corral Hollow Sanitary <br /> Landfill. Results from the Third Quarter show several detections of Volatile Organic <br /> Compounds in MW-5 and one trace detection of Acetone in SB-1. As described in previous <br /> correspondence, the County believes that groundwater concerns are related to landfill gas <br /> migration. A landfill gas control system is currently being installed and is expected to finish in <br /> March 2001. An exceedence of pH in MW-4 was also detected during the third quarter. Further <br /> monitoring will determine the effectiveness of the gas control system. <br /> This report was prepared to comply with Waste Discharge Requirements Order No. 94-259. <br /> If you have any questions,please call me at (209) 468-3066. <br /> Sincerely, <br /> ;?��-a dei Y <br /> MICHAEL KALISH <br /> Associate Engineer <br /> NIK:cg <br /> N:\M i chaeP C H\G W mon\3 rd001 et.wpd <br /> Enclosure <br /> c: Robert McClellon,Public Health Services,Environmental Health Division <br /> LA 64201 <br />