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PUBLIC HEALTH SERVICfS SAN JOAQUIN COUNTY ENVIRONMENTAL HEALTH DIVISION Karen Furst, M.D., M.P.H., Health Officer 304 East Weber Avenue, Third Floor • Stockton, CA 95202 209/468-3420 March 14, 2001 Mr. Tom Horton, Integrated Waste Manager Solid Waste Division San Joaquin County Department of Public Works Post Office Box 1810 1810 Hazelton Avenue Stockton, CA 95201 FILE COPY RE: Environmental Health and Solid Waste Division Meeting of February 27, 2001 This letter is to confirm the subject matter that was discussed at the February 27, 2001 meeting concerning the facility status of the Harney Lane, Corral Hollow, and Lovelace facilities. The meeting was attended by Tom Horton, Michael Kalish, and Jaime Perez of the Solid Waste Division (SWD) and At Olsen, Rodney Estrada, and Robert McClellon of the Environmental Health Division (EHD). Harney Lane Landfill (SWIS Facility 39 -AA -0003) Gas Levels at the Boundary Above 5%: The Harney Lane facility has been subject to long term violations of State Minimum Standards. During the meeting, the EHD was informed that SCS Engineers have been contracted to complete an assessment of the system and have made recommendations to replace condensate pumps. The condensate pumps failed and allowed the condensate to block the gas extraction header pipe. As a result, the EHD directs the SWD to review the facility Operations and Maintenance Manual, and make provisions to allow for periodic checks of all the necessary systems to operate the gas extraction equipment. The SWD stated that the condensate pumps have been requested through County Purchasing and a rush has been placed on the request, but the delivery date is uncertain. The engineering firm SCS will compile a list of items to be corrected with regard to the gas extraction system. The list and any proposed changes will be copied and sent to the EHD. The EHD also directs the SWD to compile a monthly status report on the progress of repairs and system evaluations. The SWD stated that SCS was going to make all necessary repairs. Assurances were made that SCS would continue working on-site until the facility is in compliance with Title 27, California Code of Regulations, for landfill gas at the boundary. • Gas Leak at the Blowers: During the meeting, the EHD was informed that SCS was currently working on the blower leak. The gas extraction system was modified in 1998 to allow the two gas extraction blowers to operate at the same time. This increased pressure in the manifold system, which lead to the flare and caused the outer seal of the blower to fail. The EHD was assured that the blower would be fixed as soon as a qualified repair service could be located and available to make the repair. The estimated time for repair is two to three weeks. The SWD stated that the blower manifold system may undergo some changes per conversations with SCS. SCS indicated that the extraction system should be able to run on one blower and that the lish this. The SWD mae changes proposed by them would be able tem would be sent tot a EHD forreviewrances that any and all proposed changes to the gas extraction system A Division of San Joaquin County Health Care Services