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Odor Impact Minimization Plan —Compost Facility Tracy Material Recovery facility and Transfer Station 30703 S. MacArthur Drive, Tracy, California 95377 • 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 decomposition has been achieved, the compost materials will be moved to the screening area. • At the start of all composting cycles, temperatures will be taken and recorded five days per week to confirm satisfactory results. Temperature measurements will be taken at 1.5 to 2 feet below surface for Elongated Windrow Method. This will be performed to allow for accurate temperature measurements deep within the windrow. The minimum frequency for temperature readings for all composting methods will be based on a 200 cubic yard volume per reading. Procedures for taking temperatures • Temperature probes 2 feet long, with a dial on one end and a thermocouple on the other will be used for taking temperatures. The probe will be inserted into the bag at points, which will be recorded for subsequent readings. • Depths at which the temperatures will be taken as discussed above. • The same person taking the temperatures using the same technique each time will be utilized whenever possible to aid in eliminating variables. • Points for probe insertion shall be chosen to produce the most representative readings of internal temperatures. Operations Plan for the proposed composting operations — Section 2 — Method 2: Elongated Windrow Composting (co-collected green material with up to 20% food waste) The TMR/TS and CF proposes to implement Co-Collected Organics Windrow Composting to utilize the open windrow method to process and compost co- collected organics (CCO). A blend of green material and food waste not to exceed 15% food waste materials will be used. This windrow method has been evaluated and proven effective in order to manage organic material in the most responsible and efficient manner while providing demonstrated adequate environmental controls when performed as described. All incoming CCO feedstock will be commingled at the point of generation from residential areas via the use of curbside greenwaste 'toters'. Prior to reaching the transfer facility or the compost facility, the franchised haulers of CCO feedstock will work with the municipal jurisdiction to educate the public as to what 6