(A) No person shall unnecessarily make or continue to make any noise disturbance as set forth below.
(1) Creating or causing the creation of any sound within or adjacent to any noise sensitive zone, containing a hospital, nursing home, school or other designated areas, so as to interfere with the functions of the activity or annoy the occupants of the facility, provided that conspicuous signs are displayed indicating the presence of the zone to read: “Quiet Zone”;
(2) Operating or permitting the operation within a multi-family dwelling any source of sound, in such a manner as to exceed 55 dBA from 7:00 a.m. to 10:00 p.m. or 45 dBA from 10:00 p.m. to 7:00 a.m. when measured within an adjacent intra-building dwelling. These noise limits shall not be exceeded more than 10% of any measurement period, which shall not be less than ten minutes;
(3) Operating or permitting to be operated, any loudspeaker or other source of sound in any public place that exceeds the levels shown in the table below at any point normally occupied by a customer, without a conspicuous and legible sign stating “WARNING. SOUND LEVELS WITHIN MAY CAUSE PERMANENT HEARING IMPAIRMENT”; or
Permissible Noise Exposure | |
Duration Per Day Continuous Hours | Noise Level dBA |
Permissible Noise Exposure | |
Duration Per Day Continuous Hours | Noise Level dBA |
8 | 90 |
6 | 92 |
4 | 95 |
3 | 97 |
2 | 100 |
1-1/2 | 102 |
1 | 105 |
1/2 | 110 |
1/4 or less | 115 |
(4) Using or firing explosives or similar devices such that the sound therefrom creates a noise disturbance so as to violate the provisions of this section or within a noise sensitive zone, public space or public right-of-way is prohibited. Licensed game-hunting activities on property where the activities are authorized shall not be so regulated.
(B) Maximum permissible sound levels by receiving land use.
(1) Maximum sustained sound. No person shall operate or cause to be operated any source of sound in such a manner as to create a sound level which exceeds the limits set forth for the receiving land use category in the table below, more than 10% of any measurement period, which shall not be less than ten minutes when measured at the property boundary of the receiving land use.
Sound Levels By Receiving Land Use | ||
Receiving Land Use Category | Time | Sound Level Limit dBA |
Residential, public space or institutional | 7:00 a.m. - 10:00 p.m. | 60 |
10:00 p.m. - 7:00 a.m. | 55 | |
Commercial or business | 7:00 a.m. - 10:00 p.m. | 65 |
10:00 p.m. - 7:00 a.m. | 60 | |
Manufacturing, industrial or agricultural | At all times | 75 |
(2) Maximum intermittent sound. For any source of sound received at the property boundary of the receiving land use, the maximum sound level shall not exceed the sound level limits in the table above by:
(a) Ten dBA from 7:00 a.m. to 10:00 p.m.;
(b) Two and one-half dBA from 10:00 p.m. to 7:00 a.m.; and
(c) Ten dBA at all times in a manufacturing, industrial or agricultural land use.
(Ord. 1070-11, passed 10-10-2011)