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Uses within the commercial zones shall not inflict upon adjacent property smoke, dust, dirt, glare, odors, steam, vibration, electrical interference, excessive hazard or noise which exceeds the maximum permissible limits as herein defined.

A. Air Quality: Emissions from combustion and incineration, emissions from sources emitting hazardous air pollutants, and emissions of suspended particles or fugitive dust shall not exceed the standards set forth in Chapter 173-400 WAC, General Regulations for Air Pollution. Where such emissions could be produced as a result of accident or equipment malfunction, safeguards standard for safe operation in the industry shall be taken. Polluted air streams shall be treated with the best available control technology.

B. Heat, Glare, and Humidity (Steam): Any activity producing humidity in the form of steam or moist air, or producing heat or glare shall be carried on in such a manner that the heat, glare, or humidity is not perceptible at or beyond the property line. Artificial lighting shall be hooded or shaded so that direct light of high intensity lamps will not result in objectionable glare.

C. Odors: Any use producing odors shall be carried on in such a manner that offensive or obnoxious odors shall not be perceptible at or beyond the property line.

D. Vibration: Every use shall be so operated that the ground vibration inherently and recurrently generated from equipment other than vehicles is not perceptible without instruments at any point beyond the property line.

E. Electromagnetic Interference: Electric fields and magnetic fields shall not be created that adversely affect the public health, safety, and welfare, including but not limited to interference with the normal operation of equipment or instruments or normal radio, telephone, or television reception from off the premises where the activity is conducted. This section does not apply to telecommunication facilities which are regulated by the FCC under the Federal Telecommunication Act of 1996 or its successor.

F. Noise: Noise within the Commercial Zones must not exceed the maximum permissible noise levels set forth in WAC 173-60-040 and this chapter as measured at the property line of the noise source.

Maximum Permissible Environmental Noise Levels

Noise Source

Property Receiving Noise by Zone




Commercial Zone

57 dBA*

60 dBA

65 dBA

*Between the hours of 10 p.m. and 7 a.m., the noise limitations of the foregoing table shall be reduced by ten (10) dBA for residential receiving property.

At any time of the day or night the applicable noise limitations may be exceeded for any receiving property by no more than:

1. 5 dBA for a total of fifteen (15) minutes in any one hour period.

2. 10 dBA for a total of five (5) minutes in any one hour period.

3. 15 dBA for a total of one and a half (1.5) minutes in any one hour period.

Exemptions to the maximum permissible noise level cited in this chapter shall be as enumerated in WAC 173-60-050, Maximum Environmental Noise Levels Exemptions.

G. Fire and Explosive Hazard: The manufacture, use, processing, or storage of flammable liquids, gases, or solids shall be in compliance with the State Fire Code, the State Building Code, National Fire Protection Association standards, and any other state or nationally recognized standards that may apply to the particular use, building, or process.