The following is from the City Municipal Code. 17.54.010 Noise:
Noise levels are not to exceed those standards as established by the state pursuant to Chapter 70.107 RCW, and contained in Chapter 173-60 Washington Administrative Code (WAC). (Ord. 2316 (part), 1994). Generally, the allowable hours are from 7 a.m. to 10 p.m. but there are some allowable exemptions depending on the activity and the zone.
Please see the link below for max noise levels and exemptions. Maximum Noise Levels (WAC)