ARCHIVED REPORTS_[REV] MAY & JULY 2014 RCSI

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start of composting and dropping quickly. Proper management and the location and storage of materials minimize the development of conditions that could lead to off- site odor nuisances. It should be noted that all incoming loads are required to be covered with a tarp(s) or mesh. In addition, on-site containers utilized to store waste and/or feedstock are also covered to mitigate odors. 3.1 AERATION Aeration is necessary for odor control. Maintaining the oxygen level at approximately 5 to 15 percent inside the compost pile will minimize odors. 3.2 MOISTURE CONTENT OF MATERIALS AND MOISTURE MANAGEMENT The specific mixtures for composting will be developed based on the availability of feedstock, desired use of the product and the operating parameters outlined in this permit application required for proper composting. The material received is listed in Section 1.0 as allowed under 14 CCR, Section 17852. Composition and residual moisture of the materials is dependent on the source of the feedstock and time of year. Acceptance of these wastes depends on having sufficient dry compost feedstock to absorb excess water. Water from these sources is used to replace use of on-site water to create initial compost mixture moisture content within the desired range. The desired moisture content for composting mixtures for optimum composting and minimum odor generation are as follows: • Moisture content -approximately 50 to 60 percent • Carbon to nitrogen ratio (C: N) -greater than approximately 25:1 • Density -less than approximately 1,000 pounds per cubic yard • Porosity structure -as necessary to maintain aerobic conditions Moisture content will be monitored based on knowledge of incoming moisture content, moisture addition, and by manual and laboratory testing. Piles will be watered and/or turned based on the results of monitoring. All operating standards defined by State composting regulations will be followed. 3.3 FEEDSTOCK CHARACTERISTICS AND QUALITY The Compost Facility handles the feedstock materials listed in Section 1. Incoming materials are checked for physical contaminants. The load inspection process begins at the RRF. The loads are spread out in the material sorting area (see Figure 1) and the entire load is checked for unacceptable or prohibited waste. Loads of material that have been processed prior to arriving at the Compost Facility will be visually inspected to ensure that contaminants are removed. Feedstock such as food processing residue will be incorporated immediately into compost piles to minimize the chance of vector attraction and reproduction and odor production. Semi-solid and liquid feedstocks will be added to other drier feedstocks at a rate to meet the composting mixture moisture criteria, thus minimizing the potential for free-liquid formation. Semi-solid and liquid feedstocks will be incorporated immediately into compost piles to minimize the chance of vector Forward Compost Facility -OIMP 5 SWT Engineering z:\projects\allied waste\forward\resource recovery facility\5 yr permit rvw 2013-14\rcsi 2014\appendices\app e-oimp\oimp text .doc; 7/18/2014