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 its
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. All noise shall be so muffled or otherwise controlled as not to become
objectionable due to intermittence, duration, beat frequency, impulse
character or shrillness.
B. Maximum sound pressure levels shall be measured with a sound level
meter and associated octave and analyzer conforming to standards prescribed
by the American Standards Association and shall not exceed the values
for octave bands lying with the several frequency limits given in
the following table after the application of appropriate corrections
beyond the property limits.
B Zones and I Zone
|
---|
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
|
Type of Operation or Noise
|
Correction in Decibels
|
---|
Daytime operation only
|
+5
|
Noise of impulsive character (e.g., hammering)
|
-5
|
Noise of periodic character (e.g., hum, screech)
|
-5
|
There shall be no operation or activity which would cause ground-transmitted
vibrations at such a level as to be detrimental to or endanger the
public health, safety, comfort, or welfare, or cause injury or damage
to property or business.
No operation shall be permitted which causes radioactivity in
violation Title 10, Chapter I, Part 20, Code of Federal Regulations,
"Standards for Protection Against Radiation," dated June 16, 1957,
or any subsequent revisions or amendments.
There shall be no operation or activity that would emit any
odorous matter of such nature or quantity as to be offensive, obnoxious
or unhealthful outside the premises.
No discharge beyond lot lines of any toxic or noxious matter
in such quantity as to be detrimental to or endanger the public health,
safety, comfort or welfare, or cause injury or damage to property
or business shall be permitted.
There shall be no operation or activity that produces glare
of direct illumination across a property line of an intensity as to
be detrimental to or endanger the public health, safety, comfort or
welfare of the public, or that creates a nuisance or detracts from
the use or enjoyment of adjacent property.
Outside lights must be made up of a light source and reflector
so that, acting together, the light beam is controlled and not directed
across a property line.
There shall be no operation or activity that would cause heat
at such a level as to be detrimental to or endanger the public health,
safety, comfort, or welfare, or cause injury or damage to property
or business.
There shall be no operation or activity which would emit smoke,
soot, flash, dust, cinders, dirt, noxious or obnoxious acids, fumes,
vapors, toxic substance, waste, or particulate, solid, liquid or gaseous
matter into the outdoor atmosphere alone or in any combination, in
such quantities and of such duration that would be in violation of
current state regulations or would interfere with the safe and comfortable
enjoyment of life in adjacent properties.