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TPUBLI(AEALTH SERNOCES <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION <br /> •. ie <br /> Ernest M. Fujimoto, M.D., ., Acting Health Officer <br /> 445 N. San Joaquin Street • P.O. Box 388 • Stockton, CA 95201-0388 <br /> (209) 468-3420 <br /> Mr. Gabe Karam March 31, 1994 <br /> San Joaquin County Public Works Department <br /> Solid Waste Division <br /> 1810 E. Hazelton Avenue <br /> Stockton, CA 95205 <br /> RE: Landfill Gas Control System for Harney Lane Landfill <br /> Environmental Health Division (EHD) staff has reviewed the draft Technical Specifications (Technical <br /> Specifications) for Landfill Gas Control System Construction for Harney Lane Sanitary Landfill, dated <br /> March 1994, and the associated preliminary drawings. The gas control system proposed in the Technical <br /> Specifications document and the preliminary drawings appears to meet the criteria outlined in the California <br /> Integrated Waste Management Board's Procedural Guidance Manual for Sanitary Landfills, Volume H, <br /> Landfill Gas Monitoring and Control Systems (April 1989). <br /> EHD has the following comments or questions regarding the gas control system: <br /> 1. How will backfilling occur around gas extraction well casings to assure that the structural integrity <br /> of the final cover is maintained? <br /> 2. Landfill gas control valves appear to be missing from Drawing Number one for extraction well CI <br /> and the D2-D5 cluster. <br /> 3. Does the flare have an automatic pilot restart system? <br /> 4. EHD permit(s) are required for gas extraction well construction. Inspections will be required for <br /> the installation of the bentonite seals. <br /> Please respond to the above comments or questions and submit to EHD a copy of the operation and <br /> maintenance manual and as-constructed Recording Drawings for the system when they become available. <br /> If you have any question, contact Greg Oliveira, Registered Environmental Health Specialist, at 468-0341. <br /> Ernest M. Fujimoto, M.D., M.P.H. <br /> Acting Health Officer <br /> Al Olsen, Program Manager <br /> Environmental Health Division <br /> A i)i%isinn of San Joaquin County Health Care Services <br />