The following enumerated acts or conditions are subject to the decibel levels set forth in this chapter:
(A) Land use noise.
(1) Classification of use districts (residential, commercial, industrial). Zoning district classifications shall be as set out in the city zoning ordinance and shall, for purposes of this section, be distinguishable as residential, commercial and industrial land use classifications, within which sound levels of Table 1 below shall be locally measurable and applied by the use of LEQ levels as defined in this chapter and measured in accordance with the methods set forth in this chapter for purposes of evaluating an alleged violation of this chapter.
(2) Violations. It shall be unlawful and a violation of this section for any person to operate or to permit to be operated any site-specific source of noise which when measured at 20 feet from the complaining party's building footprint:
(a) Creates a sound level in excess of its ambient LEQ limit, indicated in Table 1 below:
ZONING DISTRICT CLASSIFICATION | LEQ LIMITS, dBA |
(Residential) RS-20, RS-20M, RS-10, RS-10M, RS-7, RS-7M, RS-5, RM-1, RM-2, RM-3, MHP, RVP, MPC, RS-GR, RS-54, RS-54M | 65 dBA (7:00 a.m. - 10:00 p.m.); 60 dBA (10:00 p.m. - 7:00 a.m.) |
(Commercial or Business) B-l, B-2, B-3 | 65 dBA (7:00 a.m. -10:00 p.m.); 60 dBA (10:00 p.m. - 7:00 a.m.) |
(Industrial) B-4, B-5 | 70 dBA (7:00 a.m. -10:00 p.m.); 65 dBA (10:00 p.m. - 7:00 a.m.) |
The LEQ limits specified above in Table 1 are LEQ for a 2-minute time interval. Partial LEQ levels may be obtained as necessary to ensure an accurate indication of the representative sound environment for the site.
(b) Sound projected from property within 1 zoning district into property within another zoning district of a lesser sound level limit shall not exceed such lesser sound level limit.
(Ord. 1492, passed 8-18-2020)