In this chapter, the following terms have the meanings indicated.
Any term not defined in this chapter shall have the meaning as defined
in any chapter of the Code. Any term not defined in the Code in any
chapter shall have its generally accepted meaning.
COMMERCIAL LAND USE
Property zoned or used for the sale of goods or services
or for office uses.
DAYTIME
Between 7:00 a.m. and 10:00 p.m., local time.
dBA
Abbreviation for the sound level in decibels determined by
the A-weighting network of a sound level meter or by calculations
from octave band or 1/3 octave band data.
DECIBEL (dB)
A unit of measure equal to 10 times the logarithm to the
base 10 of the ratio of a particular sound pressure squared to a standard
reference pressure squared. For the purpose of this chapter, 20 micropascals
shall be the standard reference pressure.
DIRECTOR
The Director of Environmental Health.
ENFORCEMENT OFFICER
A.
For a noise originating from any source:
(1)
An employee or agent of the Department designated by the Director
to enforce this chapter;
(2)
A law enforcement officer;
(3)
A person authorized under the Zoning Ordinance to enforce this
chapter; or
(4)
A person authorized by the County to enforce this chapter.
B.
For a noise originating from an animal source, the Chief of
the Division of Animal Control Services or the Chief's authorized
designee.
NIGHTTIME
Between 10:00 p.m. and 7:00 a.m., local time.
PERSON
Any individual, group, firm, association, agency or other
entity.
PUBLIC PROPERTY
Any real property or structures thereon that are owned, leased,
or controlled by a governmental entity, including any street, avenue,
boulevard, road, highway, sidewalk, alley or easement that is owned,
leased, or controlled by a governmental entity.
RECEIVING PROPERTY
Any real property where people live or work and where noise
is heard, including an apartment, condominium unit, or cooperative
building unit.
[Added 9-7-2010 by Bill No. 2010-11]
SOUND
An oscillation in pressure, particle displacement, particle
velocity or other physical parameter, in a medium with internal forces
that causes compression and rarefaction of that medium. The description
of sound may include any characteristic of such sound, including duration,
intensity and frequency.
SOUND LEVEL
The weighted sound pressure level obtained by the use of
a sound level meter and frequency weighting network, such as A, B,
or C as specified in American National Standards Institute specifications
for sound level meters (ANSI SI.4-1971, or the latest approved revision
thereof). If the frequency weighting employed is not indicated, the
A-weighting shall apply.
SOUND LEVEL METER
An instrument designed to measure noise levels, meeting American
National Standards Institute S1-4-1971 Specifications for Type 2 sound
level meters.