The maximum permissible sound pressure levels as specified in § 94.10, Table A shall not apply to sounds emitted from:
(A) Any bell or chime from any building clock, school or church, not including any amplified bell or chime sounds emitted from loudspeakers.
(B) Any siren, whistle or bell lawfully used by emergency vehicles or any other alarm systems used in case of fire, collision, civil defense, police activity or imminent danger.
(C) Any aircraft in flight subject to federal law regarding noise control.
(D) Any ground-based aircraft activity including testing or engine run-up noise.
(E) Any motor vehicles designed for and operated on public streets, alleys, highways or freeways that are regulated by § 94.12, Table B.
(F) Any tree maintenance equipment operated upon a residential, commercial, industrial or public premises provided that operation of tree maintenance equipment between the hours of 9:00 p.m. and 7:00 a.m. shall not exceed the maximum noise levels as specified in § 94.10, Table A.
(G) Any construction equipment or activities in compliance with § 94.42(F).
(H) Any domestic power equipment operated upon any residential, commercial, industrial or public premises between 7:00 a.m. and 10:00 p.m. provided that such equipment does not exceed a sound pressure level of 80 dBA when measured at the property line of the receiving premise.
(I) Any commercial power equipment operated upon any residential, commercial, industrial or public premises between 7:00 a.m. and 10:00 p.m. provided that such equipment does not exceed a sound pressure level of 88 dBA when measured at the property line of the receiving premise.
(J) The musical instruments of any school marching band while performing at any sporting event or marching band competition, and the musical instruments of any school marching band practicing on school grounds between the hours of 9:00 a.m. and 8:00 p.m. that do not exceed 65 dBA when measured at the property line of the receiving residential premise.
(K) Following a snowstorm, snow removal equipment operated on any premises between the hours of 5:00 a.m. and 10:00 p.m. provided that such equipment does not exceed the sound pressure limits for commercial power equipment (88 dBA) or domestic power equipment (80 dBA) when measured at the property line of the receiving premise.
(L) Any power generator providing emergency electrical power at any hospital, health clinic, nursing home or similar facility where the loss of electrical power creates an immediate risk to the health, safety or welfare of any person, or at any premises where such equipment is required by the Fire Department. Additionally, the noise emitted during the routine testing of emergency electrical power generators shall not exceed 88 dBA when measured at the property line of the receiving premise. Routine testing shall not exceed one hour in any one-week period, or two hours in any six-week period and shall be confined to the hours of 10:00 a.m. to 4:00 p.m. or as otherwise approved.
(M) Any industrial, commercial, or public premises exceeding the standards of § 94.10, Table A at a receiving residential premises when the zoning of the receiving residential premises does not allow residential use (residential use is nonconforming). However, in such a situation, the noise emitted by the industrial, commercial, or public premises shall not exceed the standards for receiving industrial premises.
(N) Any industrial, commercial, or public premises exceeding the standards of § 94.10, Table A at a receiving residential premises when such industrial, commercial, or public premises and their emitted noise level were in existence prior to the existence of the residential premises, provided however that the existing industrial premises does not exceed 65 dBA and the commercial premises do not exceed 60 dBA when measured at the receiving residential premises.
(O) Any water craft or noise emanating from or on a body of water between the hours of 7:00 a.m. and 10:00 p.m. provided that such noise does not exceed a sound pressure level of 88 dBA when measured at the property line of the receiving property and further provided that between 10:00 p.m. and 7:00 a.m. such equipment does not exceed the maximum sound pressure levels as specified in § 94.10, Table A.
(P) Any city-sponsored fireworks display or a fireworks display approved by the city in conjunction with a specific licensed event and emanating from city property, a public recreational area, or a civic stadium.
(Ord. passed 9-5-06; Am. Ord. passed 7-5-11)