With the intent of carrying out the purpose of this chapter, the words, phrases and terms included in this section shall be deemed to have the meaning ascribed to them:
A-WEIGHTED SOUND LEVEL. The sound level in decibels as measured on a sound level meter using the “A” weighting network. The level so read is designated dB(A) or dBA.
AMBIENT NOISE LEVEL. The composite of noise from all sources near and far, excluding intrusive noise.
CONSTRUCTION. Any site preparation, assembly, erection, substantial repair, alteration or similar action.
DECIBEL. A unit for measuring the amplitude of a sound equal to 20 times the logarithm to the base ten of the ratio of the pressure of the sound measured to the references pressure, which is 20 micropascals.
DEMOLITION. Any dismantling, intentional destruction or removal of structures, utilities, public or private, right-of-way surfaces or similar property.
EMERGENCY WORK. Any work performed for the purpose of preventing or alleviating physical trauma or property damage threatened or caused by an emergency.
IMPULSIVE SOUND. A sound of high intensity, short duration, usually less than one second, with an abrupt onset and rapid decay.
INTRUSIVE NOISE. An alleged offensive noise which intrudes over and above the existing ambient noise on the property where the noise is received.
PERSON. Any individual, partnership, joint venture or corporation.
REAL PROPERTY BOUNDARY. An imaginary line along the ground surface and its vertical extension, which separates the real property owned by one person from that owned by another person.
SOUND LEVEL METER. An instrument, including a microphone, an amplifier, an output meter, and frequency weighting networks for the measurement of sound levels, which meets or exceeds the requirements pertinent for type S2A meters in American National Standards Institute Specifications for sound level meters, S14-1971, or the most recent revision thereof.
(`83 Code, § 9.44.020) (Ord. 85-5 § 1 (part), 1985)