Title 10 Regulation of Activities
Division V. Code Enforcement and Animal Regulations
Chapter 10.70 Noise Control
Section 10.70.070 Maximum Permissible Environmental Sound Levels
- Maximum Permissible Environmental Sounds.
For sound sources located within the city, no sound is permitted to exceed the maximum permissible exterior sound levels established by WAC 173-60. Maximum permissible sound levels are as follows:
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EDNA of Noise Source
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EDNA of Receiving Property
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Class A (dBA)
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Class B (dBA)
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Class C (dBA)
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Class A
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55
|
57
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60
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Class B
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57
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60
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65
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|
Class C
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60
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65
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70
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Class A - Residential Zones
Class B - Commercial, Office, Retail Zones
Class C - Industrial Zones
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- The maximum permissible sound levels established by this chapter are modified as follows:
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- Reduce by ten dBA between the hours of ten p.m. to seven a.m. for receiving property in Class A EDNAs; and
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- Increase for short duration for any receiving property at any time:
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- Increase by five dBA for fifteen minutes (L08) in any one-hour period; or
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- Increase by ten dBA for five minutes (L02) in any one-hour period; or
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- Increase by fifteen dBA for one and a half minutes (Lmax) in any one-hour period; and
- Where a receiving property lies within more than one EDNA classification, the maximum permissible sound level shall be determined by the most noise sensitive EDNA zone.
- The point of measurement shall be at the property boundary of the receiving property.
- Enforcing authority: code enforcement and parking services or police department.
Date Passed: Monday, October 3, 2022
Effective Date: Monday, October 3, 2022
ORD C36289 Section 5
