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<br />~ TABLE 1: TYPICAL COMMERCIAL CONSTRUCTION NOISE LEVELS <br />Noise Level <br />Phase (Leq)/a/ <br />Ground Clearing 84 <br />Excavation 89 <br />Foundations 78 <br />Erection 85 <br />Exterior Finishing 89 <br />/a/ Estimates correspond to a distance of 50 feet from the noisiest piece of equipment <br />associated with a given phase and 200 feet from the other equipment associated with that <br />phase. <br />SOURCE: U.S. Environmental Protection Agency, Noise from Construction Equipment and <br />Operations, Building Equipment, and Home Appliances, December 1971. <br />Impact 2: Stationary mechanical equipment, sound amplification equipment, and on-site <br />traffic could~increase noise levels in the project vicinity. <br />Over the long-term, the project would affect the noise environment through operation of the <br />following noise sources: 1) stationary mechanical equipment, 2) sound amplification equipment, <br />and 3) motor vehicle traffic. Stationary mechanical equipment would include such items as . <br />heating/ventilation and air conditioning (HVAC) equipment and a trash compactor. Sound <br />amplification equipment is not proposed as a part of the pharmacy drive-through window (Irmer, <br />1997). Motor vehicle traffic would be generated by workers and patrons of the proposed <br />development. Off-site traffic noise impacts are discussed under Impact 3. On-site traffic noise <br />impacts would be associated with parking and queuing of vehicles in the pharmacy drive- <br />through. Truck access and loading at the proposed grocery store would be another source of on- <br />site traffic noise. <br />Building Equipment <br />HVAC equipment can be a substantial source of noise de ending upon the distance between such <br />equipment and sensitive receptors and whether such equipment is installed with any noise- <br />reducing features. The exact locations of HVAC equipment for the proposed buildings is not <br />~~r" 6 <br />