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 Irvine
 Code of Ordinances
 Title 6. PUBLIC WORKS
 Division 8. POLLUTION
 Chapter 2. NOISE

  § 6-8-204. General provision.  

Latest version.

  • A.

    Designated noise zones. The properties hereinafter described, whether within or without the City, are hereby assigned to the following noise zones:

    1.

    Noise zone 1: All hospitals, libraries, churches, schools and residential properties.

    2.

    Noise zone 2: All professional office and public institutional properties.

    3.

    Noise zone 3: All commercial properties excluding professional office properties.

    4.

    Noise zone 4: All industrial properties.

    B.

    Exterior and interior noise standards.

    1.

    The following noise standards, unless otherwise specifically indicated, shall apply to all property within a designated noise zone.

    NOISE STANDARDS
    dB(A)

    Noise Levels for a Period Not
    Exceeding (minutes/hour)

    Noise Zone Time Period 30 15 5 1 0 (anytime)
    1 Exterior 7:00 a.m.—10:00 p.m. 55 60 65 70 75
    10:00 p.m.—7:00 a.m. 50 55 60 65 70
    Interior 7:00 a.m.—10:00 p.m. — — 55 60 65
    10:00 p.m.—7:00 a.m. — — 45 50 55
    2 Exterior Any time 55 60 65 70 75
    Interior Any time — — 55 60 65
    3 Exterior Any time 60 65 70 75 80
    Interior Any time — — 55 60 65
    4 Exterior Any time 70 75 80 85 90
    Interior Any time — — 55 60 65

     

    1.

    This standard does not apply to multifamily residence private balconies. Multifamily developments with balconies that do not meet the 65 CNEL are required to provide occupancy disclosure notices to all future tenants regarding potential noise impacts.

    2.

    It shall be unlawful for any person at any location within the City to create any noise 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 any property within designated noise zones either within or without the City to exceed the applicable noise standard.

    3.

    Each of the noise standards specified above shall be reduced by five dB(A) for impact, or predominant tone noise or for noises consisting of speech or music.

    4.

    In the event that the noise source and the affected property are within different noise zones, the noise standards of the affected property shall apply.

(Code 1976, § VI.K-304; Ord. No. 84-18, 9-11-84; Ord. No. 05-06, § 2, 2-22-05)