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It should be noted that all incoming loads are required to be covered with tarp or <br /> mesh. In addition, on-site containers utilized to store waste and/or feedstock will be <br /> are also covered to mitigate odors. <br /> 3.1 AERATION <br /> Aeration is necessary for odor control. Maintaining the oxygen level at approximately <br /> 5 to 15 percent inside the compost pile will serve to minimize odors. <br /> 3.2 MOISTURE CONTENT OF MATERIALS AND MOISTURE <br /> MANAGEMENT <br /> The specific mixtures for composting will be developed based on the availability of <br /> feedstock, desired use of the product and the operating parameters outlined in this <br /> permit application required for proper composting. The material received is <br /> described in Section 1.0 as allowed under 14 CCR, Section 17852. Grit/grease <br /> from wastewater treatment plants and restaurant grease traps, holding tank <br /> pumpings and septic tank pumpings may also be accepted. Composition and <br /> residual moisture of the materials is dependent on the source of the feedstock <br /> and time of year. Acceptance of these wastes depends on having sufficient <br /> dry compost feedstock to absorb excess water. Water from these sources will <br /> be used to replace use of on-site water to create initial compost mixture <br /> moisture content within the desired range. The desired moisture content for <br /> composting mixtures for optimum composting and minimum odor generation are as <br /> follows: <br /> • Moisture content-approximately 50 to 60 percent <br /> • Carbon to nitrogen ratio (C: N) -greater than approximately 25:1 <br /> • Density- less than approximately 1,000 pounds per cubic yard <br /> • Porosity structure-as necessary to maintain aerobic conditions <br /> Moisture content will be monitored based on knowledge of incoming moisture <br /> content, moisture addition, and by manual and laboratory testing. Piles will be <br /> watered and/or turned based on the results of monitoring. All operating standards <br /> defined by State composting regulations will be followed. <br /> 40 <br /> Forward Compost Facility-OIMP 6 SWT Engineering <br /> z:\projects\allied waste\forward\resource recovery facility\permitting services\2009 resi\oimp\oimp final 071309.doc; <br /> 7/20/2009 <br />