ARCHIVED REPORTS_[REV] MAY & JULY 2014 RCSI

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2-4 the site. One domesticThe fourth production well is located along the eastern boundary of the site, just south of the entrance to the Composting Facility/RRF. The locations of the wells located in the RRF/Compost Facility area are shown on Figure 2. In addition, water is available from the storm water runoff sedimentation basins, however this alternative is not currently utilized at the site. For additional information, refer to Section 3.5.2. These water supplies are available for initial mixing of the compost to bring the water content up to desired levels, wetting of the compost, dust control, and other applications through use of on-site water trucks. Preprocessing. Preprocessing and initial handling of feedstocks is also common to the alternatives. Materials with large particle sizes such as wood waste, green material and agricultural wastes may require grinding before use as feedstock and composting. All incoming feedstock is spread out for manual screening before being stockpiled. These materials will be handled in the manual sorting receiving area of the Compost Facility and ground using a tub grinder. Additional grinding capacity will be added, as necessary, to handle the volume of green and wood waste material received at the facility. Green material high in grass will be mixed as soon as possible with ground wood waste and/or recycled compost and/or other relatively dry and low C:N feedstock to minimize odor production. Sorting of green and wood waste materials is done only as part of the composting operation in an area near the grinder. Any MSW that is mixed in with the curbside greenwaste is removed before composting. In addition, removal of large objects is necessary to prevent damage to Windrow turning equipment and grinding will aid decomposition during composting. If a higher quality product is desired, more extensive pre-processing may be necessary. This could consist of manual picking of metal, plastics and glass from the incoming material or receipt of clean source-separated waste. Grinding and trommel screening of the material prior to composting has significantly improved the quality of the final compost product. More mechanized processing has included magnetic and eddy current separation for improved removal of iron and aluminum components of the waste stream. The decision on the amount of preprocessing will be determined by economics and the final use of the compost product. Semi-solid materials such as gr it , b iosolids , food processing residue and, food waste _, garbage, and li quid wastes such as grease , holding tanl< pumpings, and septio tanl < pumpings will be placed on other materials such as ground green material or wood waste or recycled compost and mixed as soon as possible to minimize the potential for leachate formation and odors. The amount of these materials accepted will be limited by the availability of other feedstocks. Current Design/Processing Option Windrow Composting using a Windrow Turner. Figure 4 shows the layout for windrow composting using a Windrow turner. A loader will be used to create the windrows, and a windrow turner is used to turn the windrows. The windrow dimensions afC-can be up to approximately I±2-feet h igh and approximately 15 feet wide at the base. The space between Windrows is about 8 feet to provide access for a water truck for water addition and for fire control. Wi ndrow composting using a wi ndrow turner is also discussed included in Section 1.3.1. Forward Composting Facility SWT Engineering Report of Composting Site Information -Mayl.UlY 2014 z:\projects \allied waste \forward \resource recovery facility \5 yr perm it rvw 2013-14\rcsi 2014\text\sec 2.doc