(A) The noise level caused by any device, instrument, vehicle, machinery, operation, use or activity shall not exceed the levels set forth in the table set out in division (E) of this section except as further provided in this chapter.
(B) In the event the ambient noise level exceeds a permitted noise level set forth in division (E) of this section, the permissible noise level for the corresponding duration and receiving area shall be the ambient level.
(C) Noise of impulsive character (hammering, and the like) or that contains a pure tone (such as a whine, screech, or hum), shall only be permitted at levels five dB(A) less than the permitted levels determined under this section.
(D) At a lot line separating properties with different permitted noise levels, the applicable permitted outdoor noise level shall be the arithmetic mean of the permitted outdoor noise levels set forth in division (E) of this section for the receiving areas on opposite sides of said lot line.
(E) Noise level table.
A-Weighted Sound Level in Decibels (dB(A)) | |||||||||||
Daytime (7:00 a.m. to 10:00 p.m.) | Nighttime (10:00 p.m. to 7:00 a.m.) | ||||||||||
Maximum Cumulative Minutes Duration in Any 1-Hour Period | Absolute Maximum | Maximum Cumulative Minutes Duration in Any 1-Hour Period | Absolute Maximum | ||||||||
A-Weighted Sound Level in Decibels (dB(A)) | |||||||||||
Daytime (7:00 a.m. to 10:00 p.m.) | Nighttime (10:00 p.m. to 7:00 a.m.) | ||||||||||
Maximum Cumulative Minutes Duration in Any 1-Hour Period | Absolute Maximum | Maximum Cumulative Minutes Duration in Any 1-Hour Period | Absolute Maximum | ||||||||
Receiving Area | 30 | 15 | 5 | 1 | 30 | 15 | 5 | 1 | |||
Outdoor Noise at Lot Line Of: | |||||||||||
Any school, church or hospital | 45 | 50 | 55 | 60 | 65 | 45 | 50 | 55 | 60 | 65 | |
Any other use | |||||||||||
In the A-1, R-1 or R-3 Zone | 50 | 55 | 60 | 65 | 70 | 45 | 50 | 55 | 60 | 65 | |
In the C-1 or C-4 Zone | 60 | 65 | 70 | 75 | 80 | 55 | 60 | 65 | 70 | 75 | |
1 In the ML, PF or BP Zone | 60 | 65 | 70 | 75 | 80 | 60 | 65 | 70 | 75 | 80 | |
In the M-1 or M-2 Zone | 70 | 75 | 80 | 85 | 90 | 70 | 75 | 80 | 85 | 90 | |
Residential Building Interior: | |||||||||||
In the A-1 or R-1 Zone | 45 | 50 | 55 | 60 | 65 | 45 | 50 | 55 | 60 | 65 | |
In the R-3 Zone | 45 | 50 | 55 | 60 | 65 | 45 | 50 | 55 | 60 | 65 | |
Sound levels at or above each decibel level given in the table shall not occur for a duration longer than that given in the corresponding column heading . | |||||||||||
('64 Code, § 52.34) (Am. Ord. 712, passed 6-11-87) Penalty, see § 10.97