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Report of Composting Site Information <br /> Tracy Material Recovery Facility and Transfer Station <br /> 30703 S. MacAurthur Drive, Tracy, Ca. 95377 <br /> Good housekeeping measures are practiced, like regularly clearing roads and windrow <br /> aisles of spilled material and any blowing litter. Processing equipment uses water spray <br /> as appropriate to reduce dust. <br /> Noise Control: Noise is controlled through the proper use and maintenance of mufflers <br /> and noise suppression systems on equipment. The below grade nature of the site, <br /> elevated roadbed and surrounding windrows should attenuate equipment noise. Noise <br /> from the aeration fans is not anticipated to be a significant noise source, as evidenced <br /> from operations at other facilities over the last several years. <br /> Vector Control: Vectors are animal, insects, and other organisms that may carry <br /> pathogens, such as mosquitoes, birds, flies, and rats, from one host to another. These <br /> vectors are frequently carried into solid waste facilities and compost facilities by delivery <br /> trucks, and may migrate on site from surrounding lands. <br /> Maintenance of appropriate temperature and moisture within active compost windrows <br /> provides excellent vector control, as the heat of decomposition both destroys pests <br /> within piles, and deters new invasion. Properly constructed drainage facilities will be <br /> provided to significantly reduce the potential for liquids and stormwater to pond on the <br /> site, mitigating the potential for mosquito propagation. Presence of vectors or <br /> conditions that could attract them will be mitigated as needed through appropriate <br /> methods. Maintenance, monitoring, and, if necessary, rebuilding of compost piles will <br /> ensure vector control. Vector eradication programs could further employ electric "bug <br /> zappers", chemical sprays, and/or traps. Commercial pest control services could be <br /> retained as necessary. <br /> Bioaerosols: Potential adverse health effects associated with airborne fungal spores, <br /> specifically Aspergillus fumigatus and or Aspergillus flavus, have raised concerns by <br /> some Californians during the siting and operation of compost facilities. The staff of the <br /> California Integrated Waste Management Board in cooperation with the California <br /> Department of Health Services, and Cal/EPA's Office of Environmental Health Hazard <br /> Assessment prepared a technical bulletin during 1993, and released the summary of <br /> findings in LEA Advisory No. 6 dated December 16, 1993. A properly operated compost <br /> facility should not present a health risk from Aspergillus fumigatus. Sound management <br /> practices include maintaining moisture, temperature and pH levels, aerating, turning and <br /> mixing. Reducing the dispersal of dust and spores best controls exposure. The uses of <br /> water sprays or mists while turning piles, and refraining from turning on windy days will <br /> help accomplish this. TMR/TS & CF plans to follow the best management practices <br /> (BMP's) outlined in LEA Advisory No 6. These include: <br /> • Maintaining the windrows in an aerobic condition through regular aeration and <br /> mixing. <br /> • Maintaining windrow moisture content between 45 and 60 percent. <br /> 23 <br />