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Report of Composting Site Information <br />Tracy Material Recovery and Transfer Facility <br />30703 S. MacArthur Drive, Tracy, Ca. 95377 <br />ratio to reduce ammonia levels. The consistent monitoring of the active compost will <br />maximize the aerobic decomposition. Maintenance of the optimum moisture content <br />and application of water will enhance and expedite aerobic decomposition and minimize <br />odor emissions. Placement and maintenance of buffer zones and exterior landscaping <br />may further mitigate odor impacts. Excessive odors from the ASP system are not <br />anticipated due to its covered and aerated nature. <br />The new Compostable Material Handling regulations effective April 4, 2003 require that <br />an Odor Impact Minimization Plan (OIMP). The OIMP is provided as an attachment to <br />this document. <br />Dust Control: The primary sources of dust at the facility include the truck traffic, material <br />turning, and material screening. The primary means of dust control at the compost <br />facility will be by water truck. Periodic watering of roads and aisles between windrows <br />will minimize dust from incoming vehicles. Maintaining appropriate moisture levels in the <br />windrows during aeration will also help alleviate dust. The Tracy MRF/TS will avoid <br />screening finished materials during periods of high winds to minimize dust creation and <br />dispersion. Processing or movement of materials will be halted in high wind conditions. <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 />23 <br />