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purposes. Windrow placement will also conform to appropriate fire control measures. Windrows will be numbered according to a grid system, to facilitate tracking in a management information system. Pertinent data as to dates, feedstocks, additives, temperatures, moisture content, turning frequency, and quality control tests will be recorded for each windrow. 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 be turned a minimum of 5 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. Frequent aeration by the windrow turner accomplishes several important operating objectives. Further shredding and mixing of materials occurs. New air spaces supply oxygen to the micro- organisms, resulting in accelerated decomposition. Anaerobic pockets of organic materials in • the windrows that 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 problem during the summer. A 6-day turning schedule for windrows with temperature of 125° - 160° F. will kill flies with a 7-day life cycle from egg to adult. Adjacent windrows will be combined with a loader as windrow volume is reduced through decomposition and the need for additional windrowing space on the composting pad arises. b. Quench or Process Water The composting process will require that the organic materials contain 50 - 60 percent moisture content by weight. The anticipated volume of process water required will vary substantially, depending on several factors including the quantity of materials, moisture content of materials upon arrival at the site, decomposition rates, evaporation rates and weather conditions. It is anticipated that approximately 220,000 gallons of water will be required in the composting process per year. This assumes that 50 percent of the organic materials received will be composted, 40 percent moisture content of materials when received and 25 percent moisture loss during the process. L:/PROJECP/397/MRF/RCI4.TCY December 15.1993 28