§ 16.44.010. Definitions.

As used in this chapter:

A.

"A-weighted sound pressure level" means the sound pressure level as measured with a sound level meter using the "A" Weighting Network. The standard notation is Db(A).

B.

"Construction equipment" means any equipment or devices, such as, but not limited to, pile drivers, power shovels, jackhammers, derricks, hoist tractors, dump trucks, loaders, rollers, concrete-hauling motor vehicles, pavement breakers, backhoe, clam shells, bulldozers, crawler-tractors, rotary drills and augers, cranes, ditchers, trenchers, scrapers, graders, wagons, pumps, compressors and pneumatic power equipment or other mechanical apparatus operated by fuel or electric power in the construction, repair or demolition of any building, structure, land, driveway or appurtenance thereto.

C.

"Decibel" means a logarithmic unit of measure often used in measuring magnitudes of sound. The symbol is Db.

D.

"Emergency work" means work made necessary to restore property to a safe condition following a public calamity or work to restore public utilities or work required to protect persons or property from an imminent exposure to danger.

E.

"Noise" means sound that is measured as the sound pressure level in decibels (Db).

F.

"Person" means any person, firm, group, association, organization, partnership, business, trust, corporation, company, contractor, supplier, installer, user or owner.

G.

"Premises" means any building, structure, land, utility or portion thereof, including all appurtenances, and shall include yards, lots, courts, inner yards, common hallways in multiple-family dwellings, common areas for one or more multiple-family dwellings, and real properties without buildings or improvements, owned or controlled by a person.

H.

"Property line" means an imaginary line exterior to any enclosed structure, at the ground surface, and its vertical extension, which separates the real property or rental unit owned or leased by one person from that owned or leased by another person.

I.

"Public right-of-way" means any street, avenue, boulevard, highway, alley or public space which is owned or controlled by a governmental entity.

J.

"Sound" means oscillation in pressure, stress, particle displacement and particle velocity which induce auditory sensation.

K.

"Sound level meter" means an apparatus or instrument including a microphone, amplifier, attenuator, output meter and frequency weighting networks for the measurement of sound levels. The sound level meter shall be a design and have the characteristics of a type 2 or better instrument as established by the American National Standards Institute, publication S1.4-1971, entitled "Specification for Sound Level Meters."

L.

"Sound pressure level" means twenty times the logarithm to the base ten of the ratio of the pressure of a sound to the reference pressure of twenty micronewtons per square meter (20 × 10-6 newtons/meter2), and is expressed in decibels (Db).

(Prior code § 11-1-17.8)