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May 28, 2002 <br />TO: Robert McClellon, Lead Senior R.E.H.S. <br />Public Health Services <br />Environmental Health Division <br />FROM: W. Michael Carroll, PE <br />Senior Civil Engineer <br />P. O. BOX 1810 - 1810 E. HAZELTON AVENUE <br />STOCKTON, CALIFORNIA 95201 <br />(209) 468-3000 FAX (209) 468-2999 <br />www.co.san-joaquin.ca.us <br />SUBJECT: LANDFILL GAS MONITORING AT FOOTHILL SANITARY LANDFILL <br />On May 23, 2002, Solid Waste Division staff monitored for landfill gas migration at the <br />Foothill Sanitary Landfill. Results from the Second Quarter 2002 Monitoring Event show that all <br />probes and structures are free of methane (Figure 1). <br />PVC pipes with caps were monitored for methane in accordance with the approved monitoring <br />plan. The pipes are open at the bottom, and are approximately 2.5 feet deep. The County used <br />a Landtec GEM 500 Gas Extraction Monitor to perform the monitoring. The instrument was <br />calibrated by County staff prior to monitoring. <br />If you have any questions, please contact me at extension 8-3066. <br />MC:DJ:kf <br />N:\IFoothill\LFGperimMonit\2nd2OO2.wpd <br />Attachment <br />c: Gino Yekta <br />California Integrated Waste Management Board <br />1001 "I" Street <br />Sacramento, California 95812 <br />LA 31209 <br />Pp U l!y <br />��'•< <br />THOMAS R. FLINN <br />DIRECTOR <br />c°t <br />Foai�:v <br />THOMAS M. GAU <br />DEPUTY DIRECTOR <br />JAMES F. PAYTON <br />BUSINESS ADMINISTRATOR <br />MANUEL SOLORIO <br />INTERIM DEPUTY DIRECTOR <br />STEVEN WINKLER <br />DEPUTY DIRECTOR <br />May 28, 2002 <br />TO: Robert McClellon, Lead Senior R.E.H.S. <br />Public Health Services <br />Environmental Health Division <br />FROM: W. Michael Carroll, PE <br />Senior Civil Engineer <br />P. O. BOX 1810 - 1810 E. HAZELTON AVENUE <br />STOCKTON, CALIFORNIA 95201 <br />(209) 468-3000 FAX (209) 468-2999 <br />www.co.san-joaquin.ca.us <br />SUBJECT: LANDFILL GAS MONITORING AT FOOTHILL SANITARY LANDFILL <br />On May 23, 2002, Solid Waste Division staff monitored for landfill gas migration at the <br />Foothill Sanitary Landfill. Results from the Second Quarter 2002 Monitoring Event show that all <br />probes and structures are free of methane (Figure 1). <br />PVC pipes with caps were monitored for methane in accordance with the approved monitoring <br />plan. The pipes are open at the bottom, and are approximately 2.5 feet deep. The County used <br />a Landtec GEM 500 Gas Extraction Monitor to perform the monitoring. The instrument was <br />calibrated by County staff prior to monitoring. <br />If you have any questions, please contact me at extension 8-3066. <br />MC:DJ:kf <br />N:\IFoothill\LFGperimMonit\2nd2OO2.wpd <br />Attachment <br />c: Gino Yekta <br />California Integrated Waste Management Board <br />1001 "I" Street <br />Sacramento, California 95812 <br />LA 31209 <br />