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at a rate to meet the composting mixture moisture criteria, thus minimizing the <br />potential for free-liquid leachate formation. Semi-solid and liquid feedstocks will be <br />incorporated immediately into compost piles to minimize the chance of vector <br />attraction and reproduction and odor production. Other highly putresible wastes <br />such as grass will also be incorporated immediately into compost to minimize the <br />chance of vector attraction and reproduction and odor production. All feedstocks will <br />be mixed in proportions that promote efficient composting, aerobic conditions and <br />minimize ammonia odor release. <br />3.4 AIRBORNE EMISSION CONTROLS <br />In order to reduce airborne emissions, dust is controlled at the site by (1) proper <br />maintenance of haul roads (surface impoundment with C&D or gravel type <br />material paving, grading, oiling, and watering), (2) application of fine water spray <br />(dictated by the weather conditions and /or on an as-needed basis ) on the active soil - <br />covered work areas; and material storage /processing areas where conditions may <br />result in fugitive dust: (3 ) application of organic dust suppressant. and (4) limiting the <br />speed of all vehicles on site to 10 miles per hour ... , and (3) proper moisture content of <br />sompost pi les. Water is the main dust control procedure used to control fugitive <br />emissions (dust). Surface water runoff or on-site well water will be applied to the <br />main access road and processing areas to control dust. No disposal or treatment of <br />this water is required since only a minimal amount is utilized and either evaporates <br />or is absorbed by the road ~-ef ground or compact material resulting in no run -off. <br />3.5 DRAINAGE CONTROLS <br />Standing water is a potential source of odors. The composting Ww indrows are <br />arranged normal to the working surface gradientsite slopes to allow free drainage <br />whileaAf.!. minimiz.Lnge potential ponding. The site is sloped to drain to ditches that <br />carry the water to a basinretention pond located west of thein the 8south Aarea::Q! <br />the property . adjacent to the RRF and Composting Facility . The basinretention pond <br />is designed tocan hold the net average annual rainfall. The water collected in the <br />basinproposed retention pond wi+lcan be used as process water, as discussed in <br />Section 3.7, to meet the desired moisture contents for composting. It should be <br />noted that water collected in the basin is not currently used as process water. <br />3.6 PAD MAINTENANCE <br />The Composting Facility pad is constructed of low -permeability compacted native soil <br />and is sloped to allow free drainage and minimize ponding. The compost pad area is <br />sized to accommodate each of the selected composting technologies. The green and <br />wood waste grinding area is approximately 1.56 acres. The material sorting area is <br />approximately 1.07 acres . and the windrow areas are approximately 14.8 acres.+h€ <br />initia l composting areapad iswill be up to approximately 8.3815 acres. The <br />screening and finished product area is approximately 2.97 acres. Minimizing <br />standing water will eliminate the potential source of odors. <br />3.7 PROCESS/WASTEWATER CONTROLS <br />Although this alternative is not currently used. the sedimentation basin water may be <br />used as process water to meet the desired moisture needs for composting <br />operations. Water collected in the proposed retention pond sedimentation basin will <br />Forward Compost Facility -OI MP 7 SWT Engineering <br />z:\projects\aliied waste \forward \resource recovery facility\5 yr permit rvw 2013-14\rcsi 2014\appendices\app e-oim p\oimp <br />text. doc; 5/16/2014