This chapter permits specific uses in specific
districts, and these performance standards are designed to limit,
restrict, and prohibit the effects of those uses outside their premises
or district. No structure, land, or water shall hereafter be used
except in compliance with the district regulations and with the following
performance standards.
The volume of sound inherently and recurrently
generated shall not exceed the following standards at any point along
the boundaries of the zone in which the use is located:
A.
Objectionable sounds of an intermittent nature shall
be controlled so as not to become a nuisance to adjacent uses.
B.
Maximum sound-pressure levels shall be measured with
a sound-level meter and associated octave band analyzer conforming
to standards prescribed by the American Standards Association and
shall not exceed the values for octave bands lying within the several
frequency limits given in the following table after the application
of appropriate corrections:
|
Frequency Ranges Containing Standard Octave
Bands in Cycles Per Second
|
Octave Band Sound-Pressure Level in Decibels
| |
|---|---|---|
|
0 to 74
|
72
| |
|
75 to 149
|
67
| |
|
150 to 299
|
59
| |
|
300 to 599
|
52
| |
|
600 to 1,199
|
46
| |
|
1,200 to 2,399
|
40
| |
|
2,400 to 4,800
|
34
| |
|
Above 4,800
|
32
|
No activity shall emit any fly ash, dust, fumes,
vapors, mists or gases in such quantities as to cause soiling or danger
to the health of persons, animals, vegetation or other forms of property.
No activity shall emit any liquid or solid particles in concentrations
exceeding 0.3 grain per cubic foot of the conveying gas or any color
of visible smoke equal to or darker than number two on the Ringelmann
Chart described in the United States Bureau of Mines Information Circular
7718 in any industrial district.
All activities involving the manufacturing,
utilization, processing or storage of inflammable and explosive materials
shall be provided with adequate safety devices against the hazard
of fire and explosion and with adequate fire-fighting and fire-suppression
equipment and devices that are standard in the industry. All materials
that range from active to intense burning shall be manufactured, utilized,
processed and stored only in completely enclosed buildings which have
incombustible exterior walls and an automatic fire extinguishing system.
Any operation producing intense glare or heat,
such as combustion or welding, shall be performed within a completely
enclosed building in such a manner as not to create a public nuisance
or hazard across lot lines. Exposed sources of light shall be shielded
so as not to create a nuisance across lot lines. Illumination which
has its source in an industrial district shall in no case be permitted
to exceed 0.1 footcandle in an adjoining residential district.
No activity shall discharge, at any point, onto
any land or into any water or public sewer, any materials of such
nature, quantity, noxiousness, toxicity or temperature that they can
contaminate, pollute or harm the quantity or quality of any water
supply, can cause the emission of dangerous or offensive elements,
can overload the existing municipal utilities, or can injure or damage
persons or property.
There shall be no vibrations emanating from
any operation which will be discernible to human feeling beyond the
boundaries of the immediate site.
No activity shall emit any odorous matter of
such nature or quantity as to be offensive, obnoxious or unhealthful
outside its premises.
No activity shall emit radioactivity or electrical
disturbances outside its premises which are dangerous or adversely
affect the use of neighboring premises.
