No land or building in any district shall be
used or occupied in any manner so as to create any dangerous, injurious,
noxious, or otherwise objectionable fire, explosive, or other hazard;
noise or vibration; smoke, dust, odor, or other form of air pollution;
heat, cold, or dampness; or electrical or other substance, condition,
or element in such a manner, or in such amount, as to adversely affect
the surrounding area or adjoining premises.
The following provisions, standards and specifications
shall apply to all districts:
A. Noise.
(1) Sound levels shall be measured with a sound-level
meter and associated octave band filter manufactured according to
standards prescribed by the American Standards Association. Measurements
shall be made using the flat network of the sound-level meter. Impulsive-type
noises shall be subject to the performance standards hereinafter prescribed,
provided that such noises shall be capable of being accurately measured
with such equipment. Noises capable of being so measured, for the
purpose of this Zoning Code, shall be those noises which cause rapid
fluctuations of the needle of the sound-level meter, with a variation
of no more than plus or minus two decibels. Noises incapable of being
so measured, such as those of an irregular and/or intermittent nature,
shall be controlled so as not to become a nuisance to adjacent uses.
(2) At no point on the boundary of a residence or business
district shall the sound intensity level of any individual operation
or plant (other than the operation of motor vehicles or other transportation
facilities) exceed the decibel levels in the designated octave bands
shown in the following table:
|
Octave Band
|
Maximum Permitted Sound Level
(decibels)
|
---|
|
Frequency
(cycles per second)
|
Along Residence District Boundaries
|
Along Business District Boundaries
|
---|
|
0 to 75
|
72
|
75
|
|
76 to 150
|
67
|
70
|
|
151 to 300
|
59
|
63
|
|
301 to 600
|
52
|
57
|
|
601 to 1,200
|
46
|
52
|
|
1,201 to 2,400
|
40
|
45
|
|
2,401 to 4,800
|
34
|
40
|
|
Above 4,800
|
32
|
38
|
B. Fire and explosion hazards. All activities involving,
and all storage of, inflammable and explosive materials shall be provided
at any point with adequate safety devices against the hazard of fire
and explosion and adequate fire-fighting and fire-suppression equipment
and devices standard in the industry. Burning of waste materials in
open fires shall be prohibited at any point. Fire and explosion hazards
shall be further subject to applicable federal, state and local laws
and regulations.
C. Radioactivity or electric disturbances.
(1) No activities shall be permitted that emit dangerous
radiation.
(2) Radioactive emissions shall be further subject to
applicable federal, state, and local laws and regulations.
D. Vibration.
(1) In nonindustrial districts, no vibration, except during
temporary construction activity, shall be permitted that is discernible
without instruments beyond the property line of the source.
(2) In industrial districts there shall be no operation
or activity that would cause ground-transmitted vibrations in excess
of the limits set forth below at the boundary of this district under
any conditions, nor beyond the property line if it would adversely
affect any other use within the district.
|
Maximum Vibration Levels
|
---|
|
Frequency
(cycles per second)
|
Maximum Permitted Displacement at Industrial
District Boundaries
(inches)
|
---|
|
0 to 10
|
0.0008
|
|
11 to 20
|
0.0005
|
|
21 to 30
|
0.0002
|
|
31 to 40
|
0.0002
|
|
Over 40
|
0.0001
|
(3) Vibrations shall be further subject to applicable
federal, state, and local laws and regulations.
E. Odors.
(1) No emission of odorous gases or other odorous matter
in such quantities as to be readily detectable shall be permitted
beyond the property lot lines of the source. Any process that may
involve the creation or emission of any odors shall be provided with
a secondary safeguard system, so that control will be maintained if
the primary safeguard system should fail.
(2) Odors shall be further subject to applicable federal,
state, and local laws and regulations.
F. Smoke.
(1) No emission shall be permitted of visible gray smoke
of a shade equal to or darker than No. 2 on the Ringelmann Chart,
except that visible gray smoke of a shade to No. 3 of such chart may
be emitted four minutes in any 30 minutes. These provisions applicable
to visible gray smoke shall also apply to visible smoke of a different
color but with an apparently equivalent capacity.
(2) Smoke shall be further subject to applicable federal,
state, and local laws and regulations.
G. Glare or heat.
(1) All lighting shall be arranged so as to deflect light
away from any adjoining residences. No direct or sky-reflected glare,
whether from floodlights or from high-temperature processes such as
combustion or welding or otherwise, so as to be visible at the property
lot line of the source shall be permitted.
(2) Glare and heat shall be further subject to applicable
federal, state, and local laws and regulations.