87.0901 Intent. — Yucaipa Zoning Code

(a) The provisions of this chapter shall apply to residential, institutional, commercial and industrial land uses.

(b) Performance standards are designed to mitigate the environmental impacts of existing and proposed land uses within a community. Environmental impacts include noise, air quality, glare, heat, and waste disposal and runoff control. Performance standards protect the health and safety of workers, nearby residents, and businesses and prevent damaging effects to surrounding properties. (Amended by Ord. 253 § 14, 2006)

87.0905 Noise.

(a) Noise Measurement

Noise will be measured with a sound level meter which meets the standards of the American National Standards Institute (ANSI Section SI4-1979, Type 1 or Type 2). Noise levels shall be measured using the “A” weighted sound pressure level scale in decibels (ref. pressure = 20 micronewtons per meter squared). The unit of measure shall be designated as dB(A). The Director of the Community Development Department shall be the noise control officer. (b) Noise Standards

(1) The following table describes the noise standard for emanations from any source as it affects adjacent properties.

Noise Standards Affected Land Use Noise Level (Ldn) Time Period (receiving noise) Residential 55 dBA 7am to 10pm 55 dBA 10pm to 7am Professional 55 dBA Anytime Services Other Commercial 60 dBA Anytime Industrial 70 dBA Anytime

(2) No person shall operate or cause to be operated any source of sound at any location or 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 any other property, either incorporated or unincorporated, to exceed any of the following levels.

(A) The noise standard for that receiving land use [as specified in subsection (b) (1) of this section] for a cumulative period of more than 30 minutes in any hour

(B) The noise standard plus 5 dBA for a cumulative period of more than five minutes in any hour
(C) The noise standard plus 10 dBA for a cumulative period of more than five minutes in any hour
(D) The noise standard plus 15 dBA for a cumulative period of more than one minute in any hour
(E) The noise standard plus 20 dBA for any period of time
(c) If the measured ambient level exceeds any of the first four noise limit categories above, the allowable noise exposure standard shall be increased to reflect said ambient noise level. If the ambient noise level exceeds the fifth noise limit category, the maximum allowable noise level under this category shall be increased to reflect the maximum ambient noise level.

(d) If the alleged offense consists entirely of impact noise or simple tone noise, each of the noise levels in subsection (b)(1) of this section shall be reduced by 5 dBA.

(e) Exempt Noises
(1) The following sources of noise are exempt.
(A) Motor vehicles not under the control of the industrial use
(B) Emergency equipment, vehicles, and devices
(C) Temporary construction, repair, or demolition activities between 7am and 7pm, except Sundays and Federal holidays