A. At All Times: The following noises are exempt from the provisions of this chapter at all times; provided, that nothing in these exemptions is intended to preclude the City from requiring installation of the best available noise abatement technology consistent with economic feasibility:
1. Noise originating from aircraft in flight.
2. Noise created by safety and protective devices, such as relief valves where noise suppression would defeat the safety release intent of the device.
3. Noise created by fire alarms.
4. Noise created by emergency equipment, including, but not limited to, emergency standby or backup equipment; emergency work necessary in the interest of law enforcement or of the health, safety or welfare of the community, including, but not limited to, any emergency work necessary to replace or repair essential utility services.
5. Noise created by auxiliary equipment on motor vehicles used for highway maintenance.
6. Noise originating from officially sanctioned parades, sporting events and other public events.
7. Noise created by warning devices not operated continuously for more than thirty (30) minutes per incident.
8. Noise originating from existing natural gas transmission facilities, subject to any requirements that may be established by appropriate State or Federal agencies.
9. Noise created by existing stationary equipment used in the conveyance of water by utility and noise created by existing electrical substations.
10. Noise created by the operation of equipment of facilities by a railroad in interstate commerce.
11. Noise emanating from temporary construction sites, except between the hours of ten o'clock (10:00) P.M. and seven o'clock (7:00) A.M. on weekdays, and except between the hours of six o'clock (6:00) P.M. and eight o'clock (8:00) A.M. on Saturdays, Sundays and State recognized holidays. (1984 Code § 9-7-5)
B. Daytime Hours: The following noises shall be exempt from the provisions of this chapter between the hours of seven o'clock (7:00) A.M. and ten o'clock (10:00) P.M. on weekdays and nine o'clock (9:00) A.M. and ten o'clock (10:00) P.M. on weekends:
1. Noise created by powered equipment used in temporary or periodic maintenance or repair of residential property, including, but not limited to, grounds and appurtenances, such as lawn mowers, powered hand tools and composters.
2. Noise created by the discharge of firearms on Police Department authorized shooting ranges.
3. Noise created by the installation or repair of essential utility services.
4. Noise created by blasting.
5. Noise created by bells, chimes or carillons not operating for more than five (5) minutes in any one hour. (1984 Code § 9-7-6)