20.08.050 Environmental sound—Modifications to maximum permissible noise levels.
The maximum permissible sound levels established by this chapter shall be modified, reduced or increased as follows:
A. Between the hours of ten p.m. and seven a.m. during weekdays, and between the hours of ten p.m. and nine a.m. on weekends, the levels established in Section 20.08.040 are reduced by ten dB(A) where the receiving property lies within District I of the city of Everett.
B. At any hour of the day or night, for any source of sound which is of short duration, the levels established by this chapter are increased by:
1. Five dB(A) for a total of fifteen minutes in any one-hour period; or
2. Ten dB(A) for a total of five minutes in any one-hour period; or
3. Fifteen dB(A) for a total of one and one-half minutes in any one-hour period. (Ord. 3509-16 § 5, 2016; Ord. 534-78 § 3(c), 1978.)