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?• G COUNTY OF SAN JOAQUIN THOMAS R.FLINN <br /> N, <br /> DEPARTMENT LIC WORKS DEPUTY DIRECTOR <br /> s P.O.BOX 1810- 1810 EAST-HA'ZELTON AVENUE MANUEL LOPEZ <br /> STOCKTON,CALIFORNIA'95201-1810 DEPUTY DIRECTOR <br /> 209/468-3000 r€`e STEVEN WINKLER <br /> 4C�FpR�� FAX:209/468-2999 �� DEPUTY DIRECTOR <br /> HENRY M. HIRATA <br /> DIRECTOR <br /> December 13, 1999 <br /> MEMORANDUM <br /> TO: Robert McClellon, Lead Senior R.E.H.S. <br /> Public Health Services <br /> Environmental Health Division <br /> FROM: Wes Johnson <br /> Associate Civil Engineer <br /> SUBJECT: LANDFILL GAS MONITORING AT THE MIGRANT FARM LABOR CAMP <br /> County staff monitored the farm labor camp adjacent to Harney Lane Sanitary Landfill for <br /> methane on October 27, 1999, using the Landtec GEM 500 landfill gas instrument that was <br /> calibrated by County staff prior to sampling. The first fifteen structures nearest to the landfill <br /> and the vents from the first two structures were tested for methane. All of the structures and <br /> vents measured 0.0% of Lower Explosive Limit. <br /> The next monitoring event will be performed in January 2000. <br /> If you have any questions,please call me at (209) 468-3066. <br /> WJ:MK:cg <br /> N:\MICHAEL\HL\GAS\CAMP499.WPD <br /> c: Scott Walker, California Integrated Waste Management Board <br /> LA 11458 <br />