Whenever the following words and phrases are used in this chapter, they have the meaning ascribed to them in this section:
"Ambient noise level"means the noise level at a given location and time that exists as a result of the combined contribution in that location of all sound sources, excluding the contribution of a source or sources under investigation for violation of this code.
"Average noise level"means a noise level typical of the noise levels at a certain place during a given period of time, which normal, unamplified sound is clearly and distinctly audible above ambient noise level.
"Construction equipment"means any tools, machinery or equipment used in connection with grading or construction activities and includes, but is not limited to, backhoes, air compressors, excavators, jack-hammers, rock-chippers, concrete saws, pipe ventilation fans, generators, and pumps.
"Container"means any receptacle, regardless of contents, manufactured from wood, metal, plastic, paper, or any other material including, but not limited to, any barrel, basket, box, crate, tub, bottle, can or refuse container.
"Disturbing, excessive or offensive noise"means:
1. Any sound or noise which constitutes a nuisance involving discomfort or annoyance to persons of normal sensitivity residing in the area;
2. Any sound or noise conflicting with criteria standards or levels as set forth in this chapter for permissible noises;
3. Any sound or noise conflicting with criteria standards or levels established by Federal or State Government which are applicable in the City.
"Emergency work"means work made necessary to restore property to a safe condition following a public calamity or work required to protect persons or property from imminent exposure to danger or damage or work by public or private utilities when restoring utility service.
"Impulsive sound"is sound of short duration, usually less than one second, with an abrupt onset and rapid decay. By way of example "impulsive sound" includes, but is not limited to, explosions, musical base drum beats, or the discharge of firearms.
"Motor vehicles"means any and all self-propelled vehicles as defined in the
California Vehicle Code and specifically includes, but shall not be limited to, automobiles, trucks, motorcycles, mini-bikes and gocarts.
"Noise disturbance"means any sound which causes discomfort or annoyance to persons of normal sensitivity residing in the area.
"Noise level"means the composite noise from all sources near and far. In this context, the noise level constitutes a normal or existing level of environmental noise at a given location and time. Noise is measured in units called decibels (dB) and is often expressed in A-weighted decibels (dBA), which is a more accurate representation of how the human ear perceives sound. Time averaged noise levels of one hour are expressed by the symbol LEQ. The maximum noise level produced is expressed by the symbol LMAX.
"Powered model vehicles"means, but is not limited to, airborne, waterborne, or land borne vehicles such as drones, model airplanes, model boats, and model vehicles of any type or size which are not designed for carrying persons or property and which can be propelled in any form other than manpower or wind power.
(Ord. 558 § 3, 2019)