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Odor Impact Minimization Plan —Compost Facility Tracy Material Recovery Facility and Transfer Station 30703 S. MacArthur Drive, Tracy, California 95377 Operations Plan for the proposed composting operations — Section 3 — Method 3 - Covered Aerated Static Pile Composting (CASP) System: Incoming food waste material will be processed and constructed into static piles within 48 hours of receipt. Incoming food materials are processed and will be mixed with green materials to assure proper pore space is available in the piles to allow efficient airflow and aerobic activity which reduces odor generation. Once constructed over the aeration system components, the CASP piles are covered and the aeration fans are employed. Partially constructed CASP piles may be covered and aeration utilized on an interim basis to minimize odors. The CASP system uses computer-based control technology. Compost pile temperature data is collected and stored on the computer and the individual batches of compost are easily tracked through the facility from start to finish. The piles are aerated and flow is automatically controlled per operator chosen set- points. The negatively-aerated system exhaust air is scrubbed in a properly-sized biofilter constructed of wood chips. Positively-aerated systems are also available which utilize a micropore fabric cover that has been shown to effectively prevent odors from release. The aeration rates for either system can be modified to conserve moisture and fan power, without releasing odors. Prior to removing the cover the aeration is increased to lower temperatures and raise oxygen levels; this greatly diminishes the potential for odor releases. Section 17863.4 (b) (1) - Odor Monitoring Protocol Properly managed green material stockpiles should not create nuisance odors. Improper management of raw feedstock piles, organic stockpiles, and processed green material may cause nuisance odors. The compost operator and the community must be willing to work together to monitor, evaluate, and allow time to make changes should nuisance odors be emitted and an odor complaint be received. The best way to ensure that all parties work together is to implement an odor impact minimization plan that is agreed upon between the operator and the LEA. The closest receptors will be operations staff and management who will be onsite during operating hours to monitor the compost materials handling operation. The operation is sited in rural San Joaquin County away from most sensitive receptors. The California Department of Resources Recycling and Recovery (CalRecycle) has identified 1,000 feet as the distance required for identification of receptors. Possible receptors are: 1) the Lone Star Industries gravel mining operations on the parcel adjacent to the west; 2) Teichert Aggregates operation of a sand and gravel mining facility to the north; and 3) two residences (mobile homes) located approximately 600 feet north of the site on the east side of MacArthur Drive. There is also one residence approximately 1.4 miles south of the site on the west 9