Development and uses shall be in compliance with the provisions of this article (Environmental).
(Ord. 17-10, 2017; Ord. 22-13, 2022)
A. "Noise Level" "Sound Pressure Level" "Statistical Noise Level"
For purposes of this section, the following definitions shall apply:
means the weighted sound pressure level measured by use of a metering characteristic with an "A" frequency weighing network and reported as dBA.
means 20 times the logarithm to the base 10 of the ratio of the root mean square pressure of the sound to the reference pressure. Sound pressure level is given in decibels (dB). The reference pressure is 20 microPascals.
means the noise level which is equaled or exceeded a stated percentage of the time. An L10=65 dBA means that in any hour of the day, 65 dBA can be equaled or exceeded only 10% of the time or for six minutes.
B.
No use shall be made of a lot or parcel which causes or permits the operation of a noise source if the statistical noise levels generated by that source and measured as provided by subsection E, exceed the following levels:
Allowable Statistical Noise Levels in Any One Hour | |
|---|---|
7:00 a.m. to 10:00 p.m. | 10:00 p.m. to 7:00 a.m. |
L50—55 dBA | L50—50 dBA |
L10—60 dBA | L10—55 dBA |
L1—75 dBA | L1—60 dBA |
C.
Notwithstanding the provisions of subsection B above, no use shall be made of a lot or parcel of an industrial or commercial noise source if an impulsive sound is emitted in the air by that source which exceeds the peak sound pressure levels specified below and measured as provided by subsection E.
7:00 a.m. to 10:00 p.m. | 10:00 p.m. to 7:00 a.m. |
|---|---|
100 dBA | 80 dBA |
D.
Sound measurement procedures as required by this section, shall conform to the procedures as adopted by the Oregon Department of Environmental Quality and set forth in the Sound Measurement Procedures Manual (NPCS-1).
E.
The appropriate measurement point shall be that point on the property line of the lot or parcel nearest to the noise source.
F.
When requested by appropriate employees of the City, the owner or operator of a noise source shall provide the following:
1.
Access to the site;
2.
Reasonable facilities, where available, including, but not limited to, electric power, ladders and other similar facilities;
3.
Cooperation in the reasonable operation, manipulation or shut down of various equipment or operations as needed to ascertain the source of sound and measure its emission.
G.
The provisions of this section shall not apply to the following noise sources:
1.
Emergency equipment not operated on a regular or scheduled basis;
2.
Warning devices not operated continuously for more than five minutes;
3.
Sounds created by the tires or engine used to propel any road vehicle complying with the Noise Control Regulations as developed by the Department of Environmental Quality and provided in Chapter 340 of the Oregon Administrative Rules;
4.
Sound created by bells or chimes;
5.
Sounds that originate on construction sites;
6.
Sounds created by construction or maintenance equipment;
7.
Sounds created by lawn care maintenance and snow removal equipment;
8.
Sounds created by the operation of aircraft or any railroad equipment or facility or activity conducted at an airport or railroad yard that is directly related to flight or train operations; and
9.
Sounds created by the operation of road maintenance equipment complying with the noise rules for such equipment.
(Ord. 17-10, 2017; Ord. 22-13, 2022)
Except for exterior lighting and incidental occurrences, commercial and industrial uses producing heat or glare shall be contained to the property or enclosed building.
(Ord. 17-10, 2017; Ord. 22-13, 2022)