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III. Environmental Setting, Impacts, and Mitigations <br /> H. Noise <br /> On-Site Equipment <br /> Impact H.I. On-site equipment and activities would result in an increase in ambient noise <br /> levels. (SIGNIFICANT) <br /> Equipment activities within the landfill property would involve the use of scrapers,dozers, <br /> shovels, and trucks for excavation,earth movement and cover placement operations. <br /> Table III.H.2 shows typical noise levels for different construction stages;Table III.H.3 shows <br /> typical noise levels for construction equipment. Noise from excavation operations and earth <br /> moving equipment activities at the landfill would be similar to the noise levels shown in <br /> Table III.H.3. <br /> Project operations would normally start at 6:00 a.m. and stop at 5:00 p.m.,five days a week,and <br /> would involve the use of heavy equipment,such as bulldozers,scrapers and compactors. The <br /> existing operations use one dozer,two scrapers,two compactors,and two water trucks. About <br /> 100 truck trips per day(200 vehicle trip ends)would bring wastes to Austin Road Landfill. <br /> These equipment and vehicle operations within the landfill property would generate noise. The <br /> maximum noise that would be generated by a single piece of equipment would be about 89 dBA, <br /> Leq, (See Table III.H.3) at about 50 feet from the source. The equipment would be working at <br /> different locations in the landfill,while the haul trucks would travel straight to the <br /> active/working phase. An estimated 14 trucks per hour spread evenly throughout the two-hour <br /> morning peak period(7 a.m. to 9 a.m.)would result in a noise level of about 67 dBA,Leq, at <br /> about 50 feet from the roadway. Combined noise levels from landfill equipment and haul trucks <br /> would be between 90 and 95 dBA,Leq, at about 50 feet. <br /> The sensitive receptors that would be most affected by landfill operations within the property <br /> boundary would be the residence located at 9690 Austin Road and the CYA facility. The <br /> residence at 9621 Austin Road would be removed as part of the project, and the site of its <br /> location would be part of the landfill property. <br /> The noise level measured at about 200 feet to the north of the house at 9621 Austin Road, along <br /> Austin Road,was about 69 dBA, Ldn(See Table III.H.1). The noise meter was placed at a distance <br /> of about 15 feet from the center of the road;the primary source of noise was road-traffic along Austin <br /> Road. <br /> III.H.10 <br />