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HENRY M. HIRA'tA <br />DIRECTOR <br />October 23, 1997 <br />11 <br />COUNTY OF SAN JOAQUIN <br />THOMAS R. FLINN <br />DEPARTMENT OF PUBLIC WORKS <br />DEPUTY DIRECTOR <br />P. O. BOX 1810 - 1810 E. HAZELTON AVENUE <br />MANUEL LOPEZ <br />STOCKTON, CALIFORNIA 95201 <br />DEPUTY DIRECTOR <br />(209) 468-3000 <br />STEVEN WINKLER <br />FAX (209) 468-2999 <br />DEPUTY DIRECTOR <br />TO: Ed Padilla, Lead Senior REHS <br />Public Health Services <br />Environmental Health Division <br />FROM: Gabriel Karam <br />Senior Solid Waste Engineer <br />SUBJECT: LANDFILL GAS MONITORING AT THE <br />FOOTHILL SANITARY LANDFILL <br />On October 6, 1997, Solid Waste Division staff monitored for <br />landfill gas migration in accordance with previously submitted <br />monitoring plans for the Foothill Sanitary Landfill. <br />The County used a GasTech Landfill Monitor to perform the <br />monitoring. The instrument was calibrated using standard GasTech <br />gas calibration canisters prior to monitoring. <br />The results from the October 1997 monitoring event are shown on <br />the attached map. The readings for all holes and structures are <br />shown adjacent to their locations on the map. if you have any <br />questions, please call me at Extension 83066. <br />GK:WJ: vj <br />R:IVIRGINIAI MEMOSWTHQU'97.FH <br />Attachment <br />c: Scott Walker, California Integrated <br />Waste Management Board <br />LA 63229 <br />LA 31209 <br />