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C <br />J <br />THOMAS M. GAU <br />DIRECTOR <br />�Q�)fTO�a`P <br />FRITZ BUCHMAN <br />DEPUTY DIRECTOR <br />MICHAEL SELLING <br />DEPUTY DIRECTOR <br />STEVEN WINKLER <br />DEPUTY DIRECTOR <br />ROGERJANES <br />BUSINESS ADMINISTRATOR <br />�s�s�grt <br />April 27, 2012 <br />Mr. Robert McClellon, Program Coordinator <br />Environmental Health Department <br />600 East Main Street <br />Stockton, California 95202 <br />P. O. BOX 1810 -1810 E. HAZELTON AVENUE <br />STOCKTON, CALIFORNIA 95201 <br />(209) 468-3000 FAX (209) 468-2999 <br />www.sjgov.org/pubworks <br />RECEIV <br />SUBJECT: FIRST QUARTER 2012 LANDFILL GAS MONITORING AT THE <br />HARNEY LANE SANITARY LANDFILL <br />Dear Mr. McClellon: <br />We are pleased to report that combustible gas concentrations at all probe locations at <br />the Harney Lane Sanitary Landfill were below regulatory limits at the time of monitoring. <br />In addition, combustible gas was not detected in any foundation vents, indicating that <br />LFG is not migrating to the migrant housing structures. <br />The samples were taken with the newly improved soil gas monitoring wells. <br />Enclosed, please find the results of the second quarter perimeter migration monitoring <br />event at the Harney Lane Sanitary Landfill, completed on April 24, 2012. <br />If you have any questions, please contact me at extension 8-8504. <br />Sincerely, <br />X?Z:-) 17311L <br />W. MICHAEL CARROLL, PE <br />Senior Civil Engineer <br />WMC:sc <br />N:\1Harney Lane\LFG Migration Monit\Perim Monitoring Data & Report\2012\1st Qtr\RMCCIeI1on01-1stQ2012HL.doc <br />Enclosure <br />c: Kevin Taylor, California Department of Resources, Recycling, and Recovery <br />1001 "1" Street, Sacramento, California 95812-4025 <br />LA 11458A <br />