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Califorri me rated Waste ana eme oard g g ® Linda Moulton-Patterson, Chair .woman •Bass 10011 Street• Sacramento,California 95814 • (916)341-6 ®®s Mailing Address: P. O. Box 4025, Sacramento, CA 95812-ItC[UMUzenegger Terry Tamminen www.ciwmb.ca.gov Secreta or Environmental 20Governor Protection J ENVIRONMENT HEALTH PERMIT/SEnViCES August 25, 2004 Robert McClellon, REHS LEA Program Manager Public Health Services P.O. Box 388 Stockton, CA 95202--0388 HARNEY LANE SANITARY LANDFILL—SWIS#39-AA-0003 Dear Mr. McClellon: California Integrated Waste Management Board(CIWMB) staff along with the staff of the San Joaquin County Local Enforcement Agency(LEA) conducted a site visit at the Harney Lane Landfill on Friday, August 20, 2004. Staff conducted landfill gas monitoring from the compliance probes as well as inspecting the site for signs of erosion problems, drainage issues, etc. Based on the observations made during our site visit,the site is currently in violation of Title 27 of the California Code of Regulations regarding landfill gas migration. Landfill gas at concentrations greater than 5%methane by volume was detected at the monitoring probes GW 1 and GW3. CIWMB is very concerned regarding the concentrations detected because there are occupied homes within very close proximity of the landfill permitted boundary and the waste foot print. The operator shall immediately correct this problem and prevent landfill gas from migrating offsite so to protect the health and safety of the public and the environment. CIWMB staff also noted a number of cracks on the surface of the landfill. This was more evident in the area of the recent fire that had burnt the grass. Due to the long grass on the fill surface, it was difficult to see all of the cracks; however walking on the surface even in the areas where there was grass, staff noted cracks of the cover. The cracks if not corrected would allow water to infiltrate into the fill which may contribute to higher gas and leachate generation. The operator should first mow the grass to locate all areas where there are cracks and then correct them. CIWMB staff also noted areas where water may have an opportunity to pond due to poor grading. These areas on the fill surface should be graded to assure water will not pond and that water will move laterally and not into the fill. Furthermore, we noted a number of owl housings attached to columns that had been installed on the surface of the landfill by penetrating the cover. CIWMB staff are concerned with the penetration of the columns into the cover and ask that the specifications regarding the installation of these units to be forwarded to the CIWMB as California Environmental Protection Agency Printed on Recycled Paper The energy challenge facing California is real.Every Californian needs to take immediate action to reduce energy consumption.For a list of simple ways you can reduce demand and cut your energy costs,see our Web site at http://www.ciwmb.ca.gov/