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FRITZ BUCHMAN <br />DEPUTY DIRECTOR <br />MICHAEL SELLING <br />DEPUTY DIRECTOR <br />STEVEN WINKLER <br />DEPUTY DIRECTOR <br />ROGERJANES <br />BUSINESS ADMINISTRATOR <br />• <br />THOMAS M. GAU <br />DIRECTOR <br />17, <br />R1111k <br />April 30, 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.)=D <br />MAY 0 3,;,? <br />ENVIRONMENTAL HEALTH <br />PERMIT/SERVICES <br />SUBJECT: SECOND QUARTER 2012 LANDFILL GAS MONITORING AT THE <br />HARNEY LANE SANITARY LANDFILL - REVISED <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 />These 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 />W. MICHAEL CARROLL, PE <br />Senior Civil Engineer <br />WMC:sc <br />N:\1 Harney Lane\LFG Migration Monit\Perim Monitoring Data & Report\2012\2nd Qtr\RMCCIellon01-2nd2012HL.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 />