It shall be unlawful for any person to produce or permit to be produced, with any sound producing device, sound which:
(A) When measured at or within the boundary of the property on which a noise sensitive unit is located which is not the source of the sound, or, within a noise sensitive unit which is not the source of the sound, exceeds:
(1) 50 dBA at any time between 6:00 p.m. and 7:00 a.m. of the following day;
(2) 60 dBA at any time between 7:00 a.m. and 6:00 p.m. of the same day.
(B) Any person knowingly creating, assisting in creating, continuing, or permitting the creation of any of the following noise disturbances shall be deemed in violation of this sub-chapter, regardless of the decibel level of disturbance:
(1) Use of dynamic braking devices on any motor vehicle, except to avoid imminent danger to persons or property. A dynamic braking device is one used primarily on trucks and buses to convert a motor from an internal combustion engine to an air compressor for the purpose of vehicle braking without the use of wheel brakes.
(2) Repair and testing of motor vehicle or other engine which is plainly audible within a noise sensitive unit between the hours of 11:00 p.m. and 7:00 a.m.
(3) Operation of a motor vehicle, air compressor or similar mechanical device without a muffler or with a muffling devices as defined in ORS 815.025.
(4) The sounding of any horn or signal device on any vehicle, except as a necessary warning of danger to property or person.
(5) The use of any gong, bell or siren upon any vehicle other than a police, fire or emergency vehicle.
(6) The operation of any vehicle in a manner to cause the tires to squeal or skid, except to avoid imminent danger to persons or property.
(7) The detonation of a blasting or explosive device, except as allowed when performed under a permit issued by appropriate governmental authorities.
(8) The playing, using or operation of any radio, musical instrument, phonograph, television set, tape recorder, loud speaker or sound amplifier, either stationary or mobile, or other machine or device for the producing or reproducing of sound in such a manner as to project sound upon public streets, or other public property, or upon private property owned by someone other than the owner or operator of the sound producing device in such a manner as to disturb any other person.
(Ord. 1709, passed 6-25-90; Am. Ord. 1745, passed 8-26-91) Penalty, see § 92.99