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. Hazardous wastes are not received. <br /> 2. Composting <br /> Material consisting of leaves, bulky agricultural products, source separated organic <br /> material, and presorted garden waste from the general public and landscapers is <br /> delivered to the composting area shown on Figure 4.1. Types and quantities of <br /> this material are described below: <br /> Type of Material Quantity (tons/near) <br /> CURRENT PROJECTED <br /> Leaves delivered by City of Lodi 4,000 15,000 <br /> crews in the fall <br /> Source separated organic material 15,000 25,000 <br /> Presorted wasted from the general 1,000 5,000 <br /> public, landscapers, etc. <br /> Grape stems 1,000 3,000 <br /> Grape pumice 4,000 12,000 <br /> Tomato Waste 3,000 9.000 <br /> TOTA L 28,000 69,000 <br /> Upon receipt, the material is sorted and placed in a modified windrow measuring 9 <br /> feet high, 150 feet wide at the base, and 200 feet in length. The sorted material <br /> that is contaminated with non-compostable material is transported to the transfer <br /> station or MRF area. Composting is achieved through a natural aerobic process <br /> whereby a controlled environment is created for bacteria to exist. <br /> The rate at which the material will decompose is dictated by the composition of the <br /> organic matter being used. Carbon and nitrogen exist in the material as delivered <br /> and the other two elements needed for decomposition, water and oxygen are <br /> added on a regular basis. This is accomplished by the use of a mechanical compost <br /> stacker which turns and aerates the windrows every two weeks. Water is added as <br /> necessary to maintain approximately 30 to 50 percent moisture. <br /> The processing time varies from 6 weeks to 8 months depending on the type of <br /> material being composted. The finished material is screened and sold as a soil <br /> amendment for agricultural application. It is also used in landscaping and local <br /> park maintenance. The screened material generally contains non-compostable <br /> material which is moved by tractor or truck to the MRF or transfer station area. <br /> The compost material is marketed directly to the public, soil brokers and landscape <br /> contractors and is used in agricultural applications as a soil amendment. <br /> Specifications are dictated by customer needs. Controls are in place to assure a <br /> 6 Revised: July 1995 <br />