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Report of Composting Site Information Tracy Material Recovery and Transfer Facility 30703 S. MacArthur Drive, Tracy, Ca. 95377 "Clean green material" will be sampled at a frequency of one composite of twelve samples for each 5,000 cubic yards consistent with 14 CCR §17868.1. Samples will be analyzed for metals consistent with 14 CCR §17868.2. The Site Manager shall maintain records of sample collection and analytical results. Additional Uses of Materials The MRF/TS and CF proposes the use of the following significant waste stream that is a non-organic material. These materials are incorporated in the compost process: Top Soil Mixing Operations Soils could be available from many different sources; commercial, residential, construction and demolition, and land clearing. Residual soil is typically found in loads of green material from commercial and residential sources when the generator is disposing of the green material in bins or at the curb in a pile. The soil will be stockpiled near the green material -tipping pad until such time there is sufficient quantity to transport the soil to the soil mixing area. Soils storage for use in the topsoil mixing would occur where there is available pace in the composting area. Soil that exhibits indications of chemical contamination based on odor, color, or texture will be evaluated by the Site Manager and returned to the hauler and/or sampled and tested by a state certified laboratory. Soil used for mixing operations will be p'• and tested prior to blending '• assure the safe use0 •: • •• • • i composting 11 Manufacturing topsoil is performed in a manner to match the market for which it is intended. Custom blends could be designed for golf courses, nurseries, and landscapers. The sources of the materials to be used in the custom blends would be the soil delivered on-site blended with compost. Other raw material that may be added includes sand, and spoils from on-site excavations. Depending on the blend, the desired amount of compost is delivered to the soil mixing area where the soil from the other sources has already been placed. A front-end loader blends the material while a water truck or piped irrigation system, when needed, is spraying the materials and the mixing process to control dust and to add moisture to the custom blend. The trommel may also be used to mix soils. After the mixing is finished, the soil is either loaded into a subcontracted transport vehicle for off-site deliveries, or it is transported on-site for storage until the material can be delivered to the market. B. DESCRIPTION OF OPERATIONS CONDUCTED AT THE FACILITY The following is a brief description of the daily operation cycle at the Composting Facility: 18