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02/06/2009 15:11 209-339.9047 VALLEY LANDSCAHP PAGE 04/06 <br />and quantity of materials to be received and shored, climatological factors, adjacent <br />land use, grading and drainage controls. <br />Site personnel have been trained to manage all compostable material handling in a <br />manner that minimizes the development of conditions that can lead to objectionable <br />odors. The following list encompasses the most prevalent industry practices, and is in <br />the order of effectiveness as ranked by California operators, according to a state-wide <br />survey conducted by California Polytechnic University, San Luis Obispo, and California <br />1. Reducing the amount of greenwaste storage time. Valley Organics raw material <br />would be delivered directly from landscape operations, and processed within two <br />weeks. <br />.12. Refusal to accept certain types of waste. Material to be processed at this site will <br />be fresh greenwaste from local landscape maintenance, delivered directly to the site on <br />a regular basis. Curbside greenwaste, which may lie at the curb for days, and has been <br />found to create the most odor problems, and animal manure will not be accepted. All <br />incoming material will be checked for physical contaminants, especially plastic bags. <br />3. Managing moisture. The composting process requires moisture to be applied to <br />the greenwaste, but this can be carefully controlled, given that the average rainfall in <br />the site area is only 12 inches per year. The primary addition of moisture will be done <br />during the process of turning the windrows with specially designed equipment. <br />4. Turning windrows at certain times of day. It is expected that the windrows will <br />be turned on an average of twice a week. Available information indicates that turning <br />the windrows in the morning would minimize odor and release of particulates, Also, <br />turning would be postponed on windy days. <br />5, Managing C.•N ratio. The ideal ratio for composting is considered to be 30 parts <br />carbon for 1 part nitrogen by weight. Grass clippings are rated at 15-25:1. The ratio <br />can be optimized by adding dry leaves, straw, wood chips or sawdust during <br />processing. <br />Other odor management controls that will be used by Valley Organics, include: <br />Managing the pH of the material. <br />Using public outreach programs to educate neighbors about the operation. <br />And, if odor becomes a problem, application of odor neutralizing or masking <br />agents. <br />Water will be applied to bare ground on-site as necessary to control dust, <br />