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3-7 <br />Forward Composting Facility SWT Engineering <br /> Report of Composting Site Information - July 2014 <br />z:\projects\allied waste\forward\resource recovery facility\5 yr permit rvw 2013-14\rcsi 2014\text\sec 3.doc <br />3.5 Processing Operations <br />3.5.1 Development Stages <br />The Compost Facility will be developed dependent on availability of suitable compostable <br />materials and equipment capability. The amount of material that is processed depends on <br />potential composting technologies. Forward has designed the Compost Facility with the <br />flexibility to expand its processing capability as the volume of incoming materials increases. <br />Figure 2 shows the site development areas. Project development stages are also discussed <br />in Section 2.1.9. <br />3.5.2 Type of Operations <br />The Compost Facility uses the Windrow composting method turned by a Windrow machine. <br />The facility operations are further described in the following sections. The amounts of waste <br />received are described in detail in Section 1.3. <br />a. Waste Handling and Separation <br />Vehicles delivering green waste material that has been preprocessed (ground) prior to <br />arriving at the Compost Facility or materials that do not need processing will be directed to a <br />separate unloading area to bypass grinding operations. Compost Facility personnel will <br />direct vehicles and supervise the unloading operations. Limited material sorting is <br />conducted as discussed below only as part of the composting operation. <br />After the materials are unloaded, laborers will remove unacceptable wastes such as plastic <br />bags and miscellaneous pieces of mixed waste. Loads of material that have been <br />processed prior to arriving at the Compost Facility will be visually inspected to ensure that <br />contaminants are removed prior to composting. In addition, large concentrations of wastes <br />(and difficult to process materials), which may be difficult to process or compost, are <br />segregated and routed for disposal. Difficult-to-process materials include palm and other <br />vine like materials, which can cause increased equipment maintenance and downtime; and <br />eucalyptus, straw, and redwood, which take a long time to decompose and may contain <br />phytotoxic components. Should any treated wood waste (TWW) be inadvertently delivered to <br />the composting facility, Republic personnel will remove the TWW and dispose of it at the <br />Forward Landfill in accordance with WDR Order No. R5-2014-0006. Additionally, any other <br />unacceptable non-hazardous wastes and large concentrations of difficult materials are <br />placed in MSW bins and transferred to the landfill's working face for disposal. <br />After personnel have removed unacceptable and/or difficult materials and large wood <br />objects from the waste which requires grinding, a front end loader will feed the waste into <br />the grinder or move the material within reach of a grapple that will load the grinder. The <br />grinder will shred the material into pieces with a nominal size of approximately 3 to 6 inches. <br />After the material passes through the grinder, it is dropped onto a conveyor that moves the <br />material past a magnetic separator. A magnetic separator is provided to extract nails and <br />other ferrous contaminants from the material. The shredded waste is moved by the front <br />end loader to the composting area or loaded into a dump truck that will transport the <br />material to the composting area where it is combined with other feedstocks. <br />The waste materials are formed into compost piles which are up to approximately 15 feet <br />wide by 7 feet tall at center, and of varying lengths up to 300 feet. The active compost will <br />be mixed, as required, for proper control depending on temperature and moisture profiles <br />and season (turning will be kept to a minimum during the rainy season). The frequency of