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iJ <br /> THOMAS M.GAU P.O.BOX 1810-1810 E.HAZELTON AVENUE <br /> DIRECTOR STOCKTON,CALIFORNIA 95201 <br /> (209)468-3000 FAX(209)468-2999 <br /> www sjgov org/pubworks <br /> FRITZ BUCHMAN <br /> DEPUTY DIRECTOR Worldn forYOUk-— P j ' <br /> MICHAEL SELLING <br /> DEPUTY DIRECTOR ' ' <br /> JIM STONE �P� /� 20 .1 <br /> DEPUTY DIRECTOR r �r <br /> ROGERJANES <br /> BUSINESS ADMINISTRATORApril 23, 2013 ENVIF� Y17ctITAL HEAL <br /> Tf-E <br /> Mr. Robert McClellon, Program Coordinator <br /> Environmental Health Department <br /> 1868 E Hazelton Avenue <br /> Stockton, California 95205 <br /> SUBJECT: SECOND QUARTER 2013 LANDFILL GAS MONITORING AT THE HARNEY LANE <br /> SANITARY L,/ANNDDFILL <br /> Dear Mr. McClellon:, 6Ll( 1 <br /> l <br /> Enclosed, please find the results of the Second quarter perimeter migration monitoring at the Harney <br /> Lane Sanitary Landfill, completed on April 16, 2013 and the buildings at the Farm Labor Camp site <br /> immediately next to the landfill, completed on April 18, 2013. <br /> We are pleased to report that combustible gas concentrations at all monitoring locations at the Harney <br /> Lane Sanitary Landfill were below regulatory limits at the time of monitoring. Measurements were <br /> taken with the newly improved monitoring probes. <br /> All perimeter migration monitoring probes were below the regulatory limit of 5 percent. The highest <br /> concentration (2.0%) was found at probe GW-4-Deep. This is consistent with some previous <br /> measurements at this probe. We will continue to pay close attention to this probe. However, we <br /> found the structures at the Farm Labor Camp free of methane. <br /> If you have any questions, please contact me at extension 8-8504. <br /> Sincerely, <br /> 4"-p" <br /> W. MICHAEL CARROLL, PE <br /> Senior Civil Engineer <br /> WMC:sc <br /> N:\1 Harney Lane\LFG Migration Monit\Repts 2013\2nd Qtr\RMcCIe11on01-2n dQ2013HL.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 />