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3-14 <br />Forward Composting Facility SWT Engineering <br /> Report of Composting Site Information - August 2019January 2022 <br />z:\projects\allied waste\forward\resource recovery facility\5 yr permit rvw 2019-2020\rcsi 2019\text\sec 3.doc <br />Environmental Consulting, 2019). Mitigations are detailed in the SEI R and include <br />implementation of the Odor Control Impact Minimization Plan. <br />Odor generation at composting facilities tends to flu ctuate, rising at the start of composting <br />and dropping quickly. Prevention is the most desirable form of odor control. Process <br />monitoring of composting conditions, especially aeration, is necessary for odor control. <br />Research suggests that maintaining th e oxygen level at 5 to 15 percent inside the compost <br />pile, controlling the moisture content, and maximizing the decomposition ra te will serve to <br />minimize odors. <br />In general, odors are controlled by processing the wastes and removing them as soon as <br />possible after they have been brought into the RRF. Facility personnel conducts daily odor <br />inspections at the RRF. As discussed in 3.3 .4, housekeeping activities are conducted on a <br />continual basis. Odor control procedures are implemented to prevent odor impacts . Efforts <br />to prevent and reduce odors will include: <br />⧫ Avoiding creating large stockpiles of incoming material <br />⧫ Producing a homogeneous material with the proper moisture content <br />⧫ Providing adequate aeration and agitation <br />⧫ Incorporating careful control of proces sing temperatures to maintain the rate of <br />decomposition. Additionally, as required in 14 CCR, Sections 17863.4 and <br />18227(n), an Odor Management Plan (OMP) is included as Appendix E-1. <br />Odors are not anticipated from residue storage since residue will be st ored for no more than <br />24 hours. If persistent odors are produced, additional odor control techniques that may be <br />implemented include: <br />⧫ Maintaining a carbon-to-nitrogen (C:N) ratio above 25:1 in initial mixes of high <br />nitrogen materials; <br />⧫ Placing a layer of cured compost over raw compost materials to act as an odor trap <br />and serve as insulation; and, <br />⧫ Using an organic odor neutralizer. <br />The EHD will be contacted should the site receive any odor complaints. <br />3.6.3 Noise Control <br />Noise at the site includes traffic noise generated by trucks and other vehicles travelling <br />along Austin Road to the landfill and RRF /Compost F acility and noise generated by the <br />equipment used in RRF /Compost F acilit y operations. Noise levels of onsite equipment are <br />controlled by proper maintenance of mufflers to factory specifications. The EHD will be <br />contacted should the site receive any noise complaints. Additionally, there shall be no <br />ancillary or facility operations (i.e., heavy equipment operations within 1,500 feet of any <br />occupied residence) outside of the permitted hours of operation. <br />Noise levels are not likely to create health hazards to persons using the site due to the use <br />of mufflers on heavy equipment. Protective ear wear is provided to all employees. Due to <br />the remote location of the site, noise levels are not likely to create health hazards to nearby <br />residents. The EHD will be contacted should the site receive any complaints. <br />In general, the major sources of noise at the Compost Facility/RRF will be the grinder and