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Project Description—Report of Composting Site Information Tracy Materlal Recovery Facility and Transfer Station 30703 S. MaMithur Drive, Tracy, California 95377 Composting Process Overview An overview of the composting process is presented below: • Incoming trucks will be received and weighed at the scale located near the gatehouse. The scale personnel will direct haulers to the appropriate area of the composting facility. Appropriate signage in conformance with the requirements of 14 CCR §17867(a) (7) will be placed within the composting facility. • The facility personnel will conduct a load check during unloading. At least one trained load-checking employee will be present during deliveries. Contaminated and uncompostable materials will either be returned to the hauler or placed in bags or cans or set aside. • The green material, yard trimmings, and wood wastes will be processed in a portable horizontal grinder within the boundary of the compost operations area or deposited directly into the windrows. • Feedstock designated to the CTI System TM (i.e. food material, and compostable material) will processed in the CTI feedstock processing/mixing area. • All information pertaining to each pile will be documented in site records and ( ` allow instant identification of pile status (e.g. start date, temperature readings, turnings, and sampling) and allow site personnel to isolate material waiting testing results. The Site Manager will keep a map showing windrow location and numbering system. • The temperature of the windrow materials will be monitored and controlled, and the windrows turned on a regular basis so that the composting process is maintained. A front-end loader and windrow turner will be used to turn the windrows. Windrows will be turned as needed for an anticipated period of 12 weeks. Subsequent curing of material in place will take place for up to eight weeks. • Water is added as necessary to the compost windrows to maintain the appropriate composting moisture and control dust. A piped irrigation system is used to apply water to the wond rows. The frequency of irrigation will vary with the season. The water truck will also be used to control dust generation during grinding or screening and be available for fire protection. • Pathogen Reduction for Windrow Composting: The process of turning windrows provides sufficient oxygen to sustain the biological activity and keep the material at a temperature of 55 degrees Celsius (131 degrees Fahrenheit), or higher, for a period of 15 days, or longer, which meets regulatory pathogen reduction requirements (14 CCR §17868.3). There will be a minimum of 5 turnings of the windrow during a 15-day period during which readings such as temperature is monitored and documented. When the desired level of , 22 Edgar&As Inc. Tracy Compost Fac ProjDesc042310