13.40.060 Interior noise standards.
A. Maximum Permissible Dwelling Interior Sound Levels.
1. The interior noise standards for multi-family residential dwellings as presented in Table 13.40-2 shall apply, unless otherwise specifically indicated in other codes, within all such dwellings with windows in their normal seasonal configuration.
|
Zoning District |
Time Interval |
Allowable Interior Noise Level (dBA) |
|---|---|---|
|
All |
10:00 p.m. – 7:00 a.m. 7:00 a.m. – 10:00 p.m. |
40 45 |
2. No person shall operate or cause to be operated within a multi-family dwelling unit any source of sound or allow the creation of any noise which causes the sound level when measured inside a neighboring dwelling unit to exceed:
(a) The noise standard as specified in Table 13.40-2 for a cumulative period of more than 5 minutes in any hour; or
(b) The noise standard as specified in Table 13.40-2 plus five dBA for a cumulative period of more than one minute in any hour; or
(c) The noise standard as specified in Table 13.40-2 plus 10 dBA for any period of time.
3. If the measured ambient noise level is greater than the level permissible within any of the noise limit categories above, the sound level when measured on the other property shall not exceed:
(a) The ambient noise level for a cumulative period of more than 5 minutes in any hour; or
(b) The ambient noise level plus 5 dBA for a cumulative period of more than 1 minute in any hour; or
(c) The ambient noise level plus 10 dBA for any period of time. (Ord. 7122-NS § 6, 2009: Ord. 5500-NS § 1 (part), 1982)