A. The following noise standards, unless otherwise specifically indicated, shall apply to all property within the Residential Noise Zone:
Allowable Interior
Noise Level Time Period
Noise Level Time Period
Not to exceed 55 dB(A) 7:00 a.m. - 10:00 p.m.
Not to exceed 45 dB(A) 10:00 p.m. - 7:00 a.m.
Allowable Exterior
Noise Level Time Period
Noise Level Time Period
Not to exceed 55 dB(A) 7:00 a.m. - 10:00 p.m.
Not to exceed 50 dB(A) 10:00 p.m. - 7:00 a.m.
B. Noise standards for a sensitive use:
1. A "sensitive use" for the purpose of this chapter means any private or public school, hospital, residential care facility for the elderly, and religious institution.
2. It shall be unlawful for any person at any location within the incorporated area of the city to create any noise that causes the noise level at any sensitive use, while the same is in operation to exceed the noise limits as specified for the Residential Noise Zone, notwithstanding the sensitive use may be located outside of the Residential Noise Zone.
C. It shall be unlawful for any person at any location within the incorporated area of the city to create any noise which can be classified as being continuous, reoccurring, predictable, or whose operation of noise-generating capabilities can be stopped or started at a specified time, or to allow the creation of any noise on property owned, leased, occupied or otherwise controlled by such person, which causes the noise level, when measured on the property, either incorporated or unincorporated, to exceed:
1. The noise standard for a cumulative period of more than 30 minutes in any hour;
2. The noise standard plus 5 dB(A) for a cumulative period of more than 15 minutes but less than 30 minutes in any hour;
3. The noise standard plus 10 dB(A) for a cumulative period of more than 5 minutes but less than 15 minutes in any hour;
4. The noise standard plus 15 dB(A) for a cumulative period of more than one minute but less than five minutes in any hour;
5. The noise standard plus 20 dB(A) for a cumulative period of less than one minute in an hour.
D. In the event the ambient noise level exceeds any of the five noise limit categories listed in Subsection C, the cumulative period applicable to the category shall be increased to reflect the ambient noise level.
(Ord. 2982, 2001)