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PpUI/y <br /> _ ? COUNTY OF SAN JOAQUIN THOMAS R.FLINN <br /> v: .a <br /> " DEPARTMENT OF PUBLIC WORKS DEPUTY DIRECTOR <br /> P.O. BOX 1810-1810 E. HAZELTON AVENUE <br /> c4�iFo"a�p STOCKTON,CALIFORNIA 95201 THOMAS M.GAU <br /> (209)468-3000 <br /> MANUEL LOPEZ FAX(209)468-2999 DEPUTY DIRECTOR <br /> DIRECTOR <br /> STEVEN WINKLER <br /> DEPUTY DIRECTOR <br /> December 8, 2000 <br /> MEMORANDUM <br /> TO: Robert McClellon, Lead Senior R.E.H.S. <br /> Public Health Services <br /> Environmental Health Division <br /> FROM: Michael Kalish <br /> Associate Engineer <br /> SUBJECT: LANDFILL GAS MONITORING AT FOOTHILL SANITARY LANDFILL <br /> On November 29, 2000, Solid Waste Division staff monitored for landfill gas migration at the <br /> Foothill Sanitary Landfill. In accordance with a previous request from the Environmental Health <br /> Division, PVC pipes with caps were monitored for methane at four locations. The pipes are <br /> open at the bottom and are approximately 2.5 feet deep. <br /> The County used a Landtec GEM 500 Gas Extraction Monitor to perform the monitoring. The <br /> instrument was calibrated by County staff prior to monitoring. Results from the Fourth Quarter <br /> 2000 Monitoring Event are shown on the attached map with readings for all probes and <br /> structures shown adjacent to their locations. <br /> Please call me at(209) 468-3066, if you any questions. <br /> MK:NZ:vn <br /> N:\Najee\Fh\Gas\4th2000.wpd <br /> Attachment <br /> c: Gino Yekta, California Integrated Waste Management Board <br /> LA 31209 <br />