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Odor Impact Minimization Plan <br /> Linden, CA <br /> 4. Operating Procedures for Minimizing Odors. <br /> One of the most common problems during composting operations <br /> is the potential for generation of noxious odors. It is possible with good <br /> Management Practices to minimize the capability of materials to generate <br /> odors. <br /> a. All Incoming raw materials (Rice Hulls, Paper Pulp, Grape Pumice, <br /> Manure, Bark Fines and Green Waste) are unloaded, mixed, ground and <br /> formed into windrows as soon as possible. Green Waste (Yard clippings, <br /> grass, leaves, etc) must be ground within seven days of delivery to the site <br /> and immediately placed in windrows. <br /> b. Aeration will be done using a Scarab. This machine drives over the formed <br /> windrows and a long shaft with flights all around it spins and flips the <br /> windrow as it's passing by. In the event that this machine brakes down, <br /> loaders are available to flip the material at any time. The schedule for <br /> turning windrows is based on our temperature monitoring. Temperature <br /> monitoring log is kept in the operators office <br /> c. Moisture plays an important role in composting. Best results are achieved <br /> in composting when moisture is kept in the 40% —60% range. This will be <br /> accomplished by adding water with a water truck as necessary. <br /> d. Feed Stock is checked daily for contaminants; if contaminants are found <br /> they are separated and send back to the supplier. Truck loads will be <br /> rejected if found at any time with more than 3% by weight of foreign <br /> material on a single load. <br /> e. Pad Maintenance: Weekly inspections of the compost area are conducted <br /> for litter, standing water and fugitive dust. Litter is removed, the area <br /> regarded for drainage, and roads are watered for dust suppression. <br /> f. Wastewater pond control. All Storm water is diverted to the authorized <br /> discharged point by the natural land topography. Storm water sampling <br /> and reporting is conducted in accordance with the company's storm water <br /> general permit. <br /> g. Feedstock: Ground green waste will be placed in windrows immediately <br /> after being processed. Since this type of feedstock is composed of mostly <br /> branches and leaves odor problems have not been detected. Feedstock <br /> with grass clippings and excessive moisture will be mixed with dry material <br /> (tailings). <br /> h. Rice Hulls, Paper Pulp, Grape Pumice, Manure, and Bark Fines will be <br /> mixed in different ratios and placed into windrows. Aeration will be the <br /> most important step to eliminate odors. The more frequent the piles are <br /> The Scotts company 6/22/2007 <br />