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4.4 NOISE <br /> Existing residences adjacent to Peltier Road are currently exposed to a peak-hour Lu, of 59 dB, <br /> assuming typical setbacks of 100 feet. Noise levels on the segment of the haul route along <br /> Peltier Road would increase by one dB from excavation related truck traffic. This noise level <br /> increase would not be significant. <br /> Miti ag t <br /> 4.4-1(a) Adjust the hours of operation of off-site hauling to between 7:00 AM and 5:00 <br /> PM, weekdays only, to restrict noise impacts to the daytime. <br /> and iveuk4 be preftrable. <br /> Construction Noise <br /> Impact <br /> 4.4-2 New home construction activity would result in short-term noise impacts for <br /> existing residences nearest the construction site (within 3,000 feet). <br /> Construction of the homes on the site would involve the use of earth moving,material handling, <br /> stationary and impact equipment (Figure 4.4-2). Existing residences near the project site are <br /> located at large setbacks from the construction area. The nearest residences to the site would <br /> be exposed to noise levels somewhere between the levels shown for the 1,000 feet and 3,000 feet <br /> setbacks in Table 4.4-2. Noise levels at nearby existing residences would be elevated by about <br /> 10 dB when construction occurs within 3,000 feet from the homes. This would be considered <br /> a significant short-term impact, since the noise increase would be more than 5 dB. <br /> Mitigation <br /> The following measures are proposed to minimize the short-term construction noise impacts. <br /> Given the short-term nature of the construction phase, these measures would adequately reduce <br /> construction noise. <br /> 4.4-2(a) Construction activities should be limited to daytime hours (8:09AM to 5:00 PM). <br /> 4.4-2(b) All construction equipment powered by internal combustion engines should be <br /> properly muffled and maintained. <br /> 4.4-10 <br />