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A 1 Windrows will be closely managed and aerated to: maintain optimum decomposition :rates. A windrow turner will aerate the windrows approximately twice a week during the rapid decomposition phase of the composting process. Turning frequency will be based on continuous temperature and moisture monitoring procedures. The windrows will beturneda minimum of five times in a 15 -day period to meet State pathogen reduction requirements. Additional water will be sprayed on the outer surfaces of the windrows prior to aeration by the windrow turner. This will help to control dust and add moisture before the dry surface materials are turned into the interior portions of the windrow. Frequentaerationby the windrow turner accomplishes several critical operating objectives. Further shredding and mining of materials occurs. New air spaces supply oxygen to the microorganisms, resulting in accelerated decomposition. Anaerobic pockets of organic materials in the windrows that may cause odors are eliminated. A turning frequency disruptive to the life cycle of unwanted insects, organisms, or parasites can keep them under control. For example, flies may pose a potential problem during the summer. A six-day turning schedule for windrows with temperatures of 1250 to 160° F. will kill flies with a seven-day life cycle from egg to adult. The Project Description has been revised to include this information. Please refer to Chapter 2.0. A2 Please refer to Response A 1 and also to the revised Project Description, Chapter 2.0. time to produce finished compost will be 20 weeks. It is estimated that the average processing p p Approximately 12 weeks are required for the rapid decomposition phase and eight weeks for the curing phase. The rapid decomposition phase of the composting process will take approximately 12 weeks. During this time, the windrows will be closely managed and aerated to maintain optimum decomposition rates. During this time, windrow temperatures (1250 - 1600 F.), moisture content, pH, changes in material size, color, and aroma will be 'monitored to ensure satisfactory progress towards stabilization. A gradual decline in temperatures from 125° F. to ambient temperatures indicates that the rapid decomposition phase of the composting process has been completed and the material is stabilizing., The curing phase of the composting process will take approximately eight weeks. Temperatures will decline (125° F. - ambient), and decomposition rates will slow down over several weeks. Characteristics of stabilized compost will be a dark uniform brown color, near ambient temperatures, earthy aroma, = and volume reductions of 50.75 percent. It is estimated that an average of seven cubic yards of finished compost would be shipped out of the facility on a daily basis. This assumes that 50 percent of the organic wastes would be composted, size reduction of green waste of 5:1 and wood waste of 10:1, and volume reduction in the windrows of 50 percent. A3 Additives, such as animal manures and pomace, may be used when available to assist in the aerobic decomposition and to improvethe quality of the finished products. Amendments may be required to provide attributes required by customers. Additives and amendments will not include septage, sewage sludge,- or mixed municipal solid waste. This information has been included in the revised Project ER -93-1 - 8 - (11-23-93)