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PgUIN <br /> c Za P.O. BOX 1810-1810 E. HAZELTON AVENUE <br /> THOMAS R. FLINN / STOCKTON,CALIFORNIA 95201-3018 <br /> DIRECTOR Eb (209)468-3000 FAX(209)468-2999 <br /> •c4��Fo. �aP• y� www.co.san-joaquin.ca.us <br /> THOMAS M.GAU Ry <br /> DEPUTY DIRECTOR •. <br /> MANUEL SOLORIO `v i 1i Wory,,.,,,�"8 for YOU <br /> DEPUTY DIRECTOR <br /> STEVEN WINKLER <br /> DEPUTY DIRECTOR <br /> July 6,2005 JUL — 7 2005 <br /> BENTON ANGOVE <br /> BUSINESS ADMINISTRATOR ENVIRONMENT HEALTH <br /> Mr.Robert McClellon,Lead Senior R.E.H.S. <br /> PERMIT/SERVICES <br /> Environmental Health Department <br /> 304 East Weber Avenue,Third Floor <br /> Stockton,California 95202 <br /> SUBJECT: SECOND QUARTER 2005 LANDFILL GAS MONITORING AT THE <br /> HARNEY LANE SANITARY LANDFILL <br /> Dear Mr. McClellon: 1 �� <br /> Enclosed,please find the results of the first quarter perimeter migration monitoring at the Harney Lane <br /> Sanitary Landfill(Table 1), including monitoring of the foundation vents of the migrant labor camp <br /> structures adjacent to the landfill(Table 2). We are pleased to report that combustible gas has not been <br /> detected in any foundation vents, indicating that LFG is not migrating to those structures. <br /> The perimeter monitoring well data enclosed shows that the concentration of combustible gas at probe <br /> GW-3M was above regulatory limits at the time the measurement was made(April 14, 2005);however, <br /> measurements made after that time has confirmed that the combustible gas concentration has been <br /> reduced to below the regulatory limit. Therefore,at the time of this writing, all migration monitoring <br /> probes are below regulatory limits for combustible gas. <br /> We continue to aggressively collect LFG at a rate of approximately 410 scfm. <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 /> NAIHamey Lane\L.FG Reports\2005\2ndQtr2005RptCoverLetter.doc <br /> Enclosure <br /> c: Mr.Gino Yekta <br /> California Integrated Waste Management Board <br /> Cal-EPA Building, 1001 1 Street <br /> Sacramento,California 95812-4025 <br /> LA 11458 <br />