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Facility Capacity Study Tracy Materia/Recovery Facility and Transfer Station Expansion 30703 S. MacArthur Drive, Tracy, California 95377 Design Calculations The assumptions, methods, and calculations for each specific operation are provided below. Transfer Station: The 47,200 square foot original MRF/TS building has a recent approved expansion of an additional 10,200 square feet (Phase 1 addition) for covered storage of recyclable materials on the western side, for a total enclosed space of 57,400 square feet. A secondary expansion is proposed to add approximately 1.9,200 square feet (Phase 2 addition) to the northern side of the building, which will add increased area to be divided between the Material Recovery Facility and Transfer Station operations, bringing the overall footprint of the MRF/TS building to approximately 76,600 square feet. Transfer Station Loading Capacity— Design 3,072 TPD The Transfer Station is housed in a portion of the enclosed building of 47,200 square feet. There are two waste openings above the load-out bays adjacent to the MSW Tipping Area on the floor of the Transfer Station. Transfer trailers below grade will be top loaded with MSW by a wheeled loader pushing MSW through the waste opening. A transfer vehicle holding 24 tons of municipal solid waste can be loaded in less than 15 minutes. With two transfer trailers being loaded, with an operational average of 8 trucks per hour, 3,072 tons of MSW can be loaded out in a 16-hour day, while only 1,000 TPD is being requested. Floor Space Capacity— 5,000 CYD The Transfer Station Floor Space will be expanded with the Phase 2 addition to the Building. Sheet Al provides the Transfer Station Floor Plan and locations of the stockpile. The stockpile capacity of the Transfer Station floor space allows 3,000 CYD of self-haul waste and 3,000 CYD of commercial and residential waste to total 6,000 CYD of combined material, allowing adequate storage capacity for a peak day of 1,000 TPD which could require up to 5,000 CYD. Additionally, there two surge piles of 80 cubic yards may be placed next to each bay. The stockpiles are 8 feet high, and separated, while leaving adequate tipping area and access for vehicles to tip indoors. Of course, this would only be an extreme contingency matter. Given that the MSW is top-loaded into transfer transfers and not governed by electrical equipment, the continual load-out of material throughout the day will occur, where stockpiling would diminish. The operator keeps adequate equipment and fuel on-site to run the loading equipment, and can rent back-up equipment within hours in case of emergencies. Having 6,000 CYD of capacity is adequate for a peak throughput of 1,000 TPD, with a transfer station design loading capacity of 3,072 TPD. 3