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3-14 <br />Forward Composting Facility SWT Engineering <br /> Report of Composting Site Information - July 2014 <br />z:\projects\allied waste\forward\resource recovery facility\5 yr permit rvw 2013-14\rcsi 2014\text\sec 3.doc <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 Facility and noise generated by the <br />equipment used in RRF/Compost Facility 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 <br />the Windrow turner, if used. These machines typically produce sound levels in the range of <br />approximately 85 to 90 decibels. Since the estimated sound level at 200 feet is <br />approximately that of the human voice during normal conversation, noise should not be a <br />health hazard to persons working approximately 200 feet from the equipment. A noise level <br />study conducted for a tub grinder manufacturer shows the following sound pressure levels: <br />within 50 feet, 85.2 decibels; within 100 feet, 78.4 decibels; and within 200 feet, 73.5 <br />decibels. <br />It should be noted that noise produced at the facility also complies with provisions of the <br />San Joaquin County Development Code, Title 9, Section 9-1025.9 as specified in SWFP No. <br />39-AA-0020. <br />Due to the site's remote location, the noise produced will not create an offsite concern; <br />therefore, no special noise control devices will be needed at the RRF/Compost Facility. <br />3.6.4 Dust Control <br />Dust is controlled at the site by (1) proper maintenance of haul roads (paving, grading, and <br />watering), (2) application of fine water spray (dictated by the weather conditions and/or on <br />an as-needed basis) on the active soil-covered work areas, soil excavation areas, and soil <br />stockpile areas where conditions may result in fugitive dust; (3) application of organic dust <br />suppressant, and (4) limiting the speed of all on-site vehicles to less than those that would <br />cause visible dust emissions behind the vehicle. For dust control purposes, surface water <br />runoff or on-site well water is applied to all main access and haul roads at least once per <br />day. All-weather surfacing is applied to any unpaved road segment that carries 50 or more <br />vehicle trips per day continuously for more than 30 days. <br />Dirt roads and areas between active compost are watered, as necessary, to minimize dust <br />when equipment uses the roads/areas. Proper management of the moisture level of the <br />compost materials throughout the operation will minimize dust generation. The likelihood of <br />dust problems from the initial receiving, grinding, and compost pile formation and turning is <br />low. The active compost is monitored for moisture content, and water is added when <br />needed. <br />Dust generation at composting facilities occurs primarily during screening operations. In <br />order to mitigate this, the trommel screen may be equipped with canvas covers or water