§ 154.114 NOISE AND VIBRATION.

   (A)   Noise, which is objectionable as determined by the city due to volume, frequency, or beat shall be muffled, attenuated, or otherwise controlled, subject to the following.

      (1)   Objectionable sounds of an intermittent nature, or sounds characterized by high frequencies, shall be controlled so as not to become a nuisance to adjacent uses.

      (2)   Sirens and related apparatus used solely for public purposes are exempt from this requirement. Noise resulting from temporary construction activity shall also be exempt from this requirement.

      (3)   Noise levels shall not exceed 75 decibels between the hours of 6:00 a.m. and 10:00 p.m. and shall not exceed 60 decibels between the hours of 10:00 p.m. and 6:00 a.m., and must comply with the levels set forth in the following table.

Sound Levels in Decibels at Property Lines
Sound Level	Adjacent to R-1, R-2, R-3, R-4, and R-5 Districts	Adjacent to LS, GC, CBD and LI Districts
0 to 75	58	73
75 to 150	54	69
150 to 300	50	65
300 to 600	46	61
600 to 1,200	40	55
1,200 to 2,400	33	43
2,400 to 4,800	26	41
Over 4,800	20	35

 

      (4)   Noise levels noted in division (A)(3) above may be exceeded with City Council approval for special events and circumstances.

   (B)   No use shall generate any ground transmitted vibration in excess of the limits set forth below. Vibration shall be measured at the nearest adjacent lot line. The vibration maximums set forth below are stated in terms of particle velocity, which may be measured directly with suitable instrumentation or computed on the basis of displacement and frequency. When computed, the following standards shall apply.

 

Particle Velocity, Inches Per Second
Frequency in Cycles per Second	Displacement in Inches
0 to 10	0.0010
10 to 20	0.0008
20 to 30	0.0005
30 to 40	0.0004
40 and over	0.0003

 

   (C)   Vibrations resulting from temporary construction activity shall be exempt from the requirements of this section.

(Ord. 285, passed 12-8-2003)  Penalty, see § 154.999