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Report of Composting Site Information <br /> Tracy Material Recovery& Transfer Facility <br /> 30703 S. MacArthur Drive, Tracy, Ca. 95377 <br /> "digestate" [14CCR §17852 (a)(13.5)] - means the solid and/or liquid residual material <br /> remaining after organic material has been processed in an in-vessel digester, as <br /> defined in section 17896.2(x)(14). Digestate intended to be composted pursuant to this <br /> Chapter may only be handled at a facility that has obtained a Compostable Materials <br /> Handling Facility Permit pursuant to section 17854. <br /> "composted digestate" is a compost product that has been digested and composted but <br /> not cured, and would qualify as a compost feedstock. Composted digestate with <br /> subsequent compost process on-site derived from a food waste and green waste <br /> anaerobic digestion process would be classified as a compost feedstock when delivered <br /> to another compost facility for further processing and curing, and would qualify as green <br /> material for tonnage accounting purposes. <br /> Gypsum <br /> The processing of gypsum from source-separated wallboard also occurs at the facility. <br /> Only "clean" wallboard scrap from drywall contractors is accepted. Gypsum from dry <br /> wall sources is used as an additive to assure proper nutrient balance in the end product. <br /> It is added during the composting process, in variable quantities, to satisfy the needs of <br /> agriculture markets and the creation of custom blends. <br /> Produced Materials Definitions <br /> "finished compost" - Green Material or food waste that has undergone the composting <br /> process. Finished compost smells earthy rather than rotten or moldy and is dark and <br /> crumbly. <br /> "overs" — Waste residuals obtained from the screening of finished compost to 1-inch. <br /> Overs will not pass through the 1" screen. <br /> "product" — Product is screened to 5/16" minus for sale. Following the screening <br /> process, product will be moved directly to a stockpile location for wholesale and retail <br /> sales. <br /> Throughput Tonnages <br /> Whereas each material type may have a maximum tons per day for a specific operation, <br /> typically the Composting Facility will receive an average of 160 TPD (averaged <br /> monthly), for Monday through Friday throughputs, reduced to an average of 132 TPD if <br /> Saturdays are included. Seasonal peak throughputs of up to 200 TPD are anticipated <br /> up to 15 days per year, which translates into a maximum throughput of 42,500 tons per <br /> year. Food waste is anticipated to comprise up to 15% of the co-composted elongated <br /> windrows (15% food waste/85% green waste) and up to 40% of the material composted <br /> in the enclosed, aerated static piles with the remainder being a bulking agent, probably <br /> greenwaste or wood chips. If the amount of food waste composted was reduced, <br /> additional green waste could be composted to fulfill the 132-ton per day entitlement. <br /> Throughput tonnages are shown in Table 2. <br /> 9 <br />