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<br />construction activities and construction equipment staging <br />operations associated with the proposed project would <br />result in a short-term increase in ambient noise levels <br />within the project area. Table N-2 identifies what the <br />noise levels would be for different construction equipment. <br /> TABLE N-2 <br /> NOISE LEVELS GENERATED BY TYPICAL CONSTRUCTION EQUIPMENT <br /> Suggested Sound <br /> Range of Sound Levels for <br /> Levels Measured Analysis (dBA at <br />Type of Equipment (dBA at 50 feet) 50 feet) <br />Pile Drivers, 12,000 to 81 to 96 93 <br />18,000 ft-1b/blow <br />Rock Drills 83 to 99 96 <br />Jack Hammers 75 to 85 82 <br />Pneumatic Tools 78 to 88 85 <br />Pumps 68 to 80 77 <br />Dozers 85 to 90 88 <br />Tractor 77 to 82 80 <br />Front-End Loaders 86 to 90 88 <br />Hydraulic Backhoe 81 to 90 86 <br />Hydraulic Excavators 81 to 90 86 <br />Graders 79 to 89 86 <br />Air Compressors 76 to 86 86 <br />Trucks 81 to 87 86 <br />To minimize potential construction-related noise impacts to <br />a level considered less than significant, the project would <br />be required to comply with City's Noise Ordinance. The <br />Noise Ordinance would limit construction activity between <br />7:00 AM to 8:00 PM Monday through Saturday, and not <br />permitted on Sundays or Federal Holidays. To ensure the <br />project complies with the Noise Ordinance, the following <br />mitigation measure shall be implemented. <br />Mitigation Measure <br /> . Demolition Plans, Grading Plans and Building Plans for <br /> the proposed project shall note that construction <br /> activities on the project site shall take place <br /> between the hours of 7:00 a.m. and 8:00 p.m. Monday <br /> through Saturday and no construction activity on <br /> Sundays or federal holidays. <br /> . Demolition Plans, Grading Plans and Building Plans <br /> shall note "No construction equipment on the project <br /> site shall operate including warming up until after <br /> 7:00 a.m. " <br />24 758-39 <br />