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San Joaquin County Community Project Description Development Department - the stockpiles. Asphalt oil would be delivered in tank trucks and stored in heated storage tanks. The aggregate would be dried and mixed with the heated asphalt oil to manufacture asphalt concrete. The asphalt concrete would be transported off site via trucks. Portland Cement Concrete Plant The proposed Portland cement concrete plant would have an initial production rate of approximately 2,400 cubic yards per day, increasing to 3,000 cubic yards per day. Aggregate material would be fed from the concrete aggregate stockpiles and sent to the batch tower,which would be a maximum of 80 feet high. Aggregate, cement,and water would be separately weighed and blended in a mixer. Dust generated within the plant would be drawn through a bag-house system and returned to the concrete product. The concrete mix would be poured into mixer trucks, after which the loads would be ticketed and sent to their ' destination off-site. Recycling Plant The Project includes operation of a recycling plant to recycle existing concrete materials that would be imported to the site via trucks. In general,the recycling process involves preparing the existing pavement or other structural elements for fracturing the materials into manageable sizes appropriate for the crushing equipment at the site. Typically,the pavement is fractured with a primary crusher, or by scarifying, ripping,or hydraulic breaker. The broken concrete is then hauled to the crushing plant where it is crushed and sized in accordance with the construction materials specifications. The recycled materials are then reused directly from the crushing plant or stockpiled on site for future use. Any reinforcing steel not previously removed from the materials would be separated from the recycled concrete after it is processed through the primary crusher. The pieces of reinforcing steel would be removed either by electromagnet, suspended above the conveyor belt leading from the primary crusher, or removed manually. _ The steel would be removed from the project site and disposed of at an appropriate facility. The Applicant estimates that approximately 50,000 tons per year at project start up, increasing to 100,000 tons per year will be trucked into the site for recycling. Ancillary Facilities Stationary equipment and structures would be located in the western portion of the processing area. Facilities would include an office, scale house, and an equipment maintenance and fuel storage site, with diesel fuel, oil, and hydraulic fluid storage tanks. Up to three buildings, with an estimated area of 10,000 square feet,may be constructed and used for mine operations. — DeSilva Gates Quarry Project Draft Environmental Impact Report 2-10 Jas osms.os