[R.O. 2011 §400.620; Ord. No. 01-10 §1(12.07), 4-9-2001; Ord. No. 04-25 §1, 7-26-2004]
A.
For
the purpose of determining the density of equivalent opacity of smoke,
the Ringlemann Chart, as adopted and published by the United States
Department of Interior, Bureau of Mines Information Circular 8833,
May 1967, shall be used. The Ringlemann number referred to in this
Section refers to the number of the area of the Ringlemann Chart that
coincides most nearly with the visual density of equivalent opacity
of the emission of smoke observed. For example, a reading of Ringlemann
No. 1 indicates a twenty percent (20%) density of the smoke observed.
B.
All
measurements shall be taken at the point of emission of the smoke.
C.
In
the "B-1", "B-2", "MU", "B-3", "B-4" and all "PUD" Districts, no business
or residence may emit from a vent, stack, chimney or combustion process
any smoke that exceeds State or Federal regulatory standards.
D.
In
the "I-1" District, no land use permittee may emit from a vent, stack,
chimney or combustion process any smoke that exceeds a density or
equivalent capacity of Ringlemann No. 2, except that an emission that
does not exceed a density or equivalent capacity of Ringlemann No.
3 is permissible for a duration of not more than four (4) minutes
during any eight (8) hour period if the source of such emission is
not located within two hundred fifty (250) feet of a residential district.
E.
In
the "I-2" District, no land use permittee may emit from a vent, stack,
chimney or combustion process any smoke that exceeds a density or
equivalent capacity of Ringlemann No. 2, except that an emission that
does not exceed a density or equivalent capacity of Ringlemann No.
3 is permissible for a duration of not more than four (4) minutes
during any eight (8) hour period if the source of emission is not
located within five hundred (500) feet of a residential district.
[R.O. 2011 §400.625; Ord. No. 01-10 §1(12.08), 4-9-2001; Ord. No. 04-25 §1, 7-26-2004]
B.
Except as provided in Subsection (F), the table set forth in Subsection (E) establishes the maximum permissible noise levels for land uses in the "I-1" and "I-2" Districts. Measurements shall be taken at the boundary line of the lot where the land use is located and, as indicated, the maximum permissible noise levels vary according to the zoning of the lot adjacent to the lot on which the land use is located.
C.
A "decibel" is a measure of a unit of sound pressure. Since
sound waves having the same decibel level "sound" louder or softer
to the human ear depending upon the frequency of the sound wave in
cycles-per-second (i.e., whether the pitch of the sound is high or
low), an American filter constructed in accordance with the specifications
of the American National Standards Institute, which automatically
takes account of the varying effect on the human ear of different
pitches, shall be used on any sound level meter taking measurements
required by this Section. Accordingly, all measurements are expressed
in dB(A) to reflect the use of this A-weighted filter.
D.
The standards established in the table set forth in Subsection (E) are expressed in terms of the Equivalent Sound Level (Leq), which must be calculated by taking one hundred (100) instantaneous weighted sound levels at ten (10) second intervals (see Appendix F-1 which is on file in the City offices) and computing the Leq in accordance with the table set forth in Appendix F-2 which is on file in the City offices.
E.
Table Of Maximum Permitted Sound Levels, dB(A).
Table of Maximum Permitted Sound Levels, dB(A)
(re: 0.0002 Microbar)
Zoning of Adjacent Lot
| |||||
---|---|---|---|---|---|
Zoning of lot where 4,000 use located
|
Residential and PUD
|
"B-1", "B-2", "MU", "B-4", "B-5"
|
"I-1"
|
"I-2"
| |
7:00 A.M. — 7:00 P.M.
|
7:00 P.M. — 7:00 A.M.
| ||||
"I-1"
|
50
|
45
|
55
|
60
|
65
|
"I-2"
|
50
|
45
|
60
|
65
|
70
|
F.
Impact noises are sounds that occur intermittently rather than continuously. Impact noises generated by sources that do not operate more than one (1) minute in any one (1) hour period are permissible up to a level of ten (10) dB(A) in excess of the figures listed in Subsection (E), except that this higher level of permissible noise shall not apply from 7:00 P.M. to 7:00 A.M. when the adjacent lot is zoned residential. The impact noise shall be measured using the fast response of the sound level meter.
G.
Noise
resulting from temporary construction activity that occurs between
7:00 A.M. and 7:00 P.M. shall be exempt from the requirements of this
Section.
[R.O. 2011 §400.627; Ord. No. 01-10 §1(12.09), 4-9-2001; Ord. No. 04-25 §1, 7-26-2004]
A.
No
land use in any permissible business district may generate any ground-transmitted
vibration that is perceptible to the human sense of touch measured
at:
C.
The
instrument used to measure vibrations shall be a three (3) component
measuring system capable of simultaneous measurement of vibration
in three (3) mutually perpendicular directions.
D.
The vibration maximums set forth in Subsection (E) are stated in terms of particle velocity, which may be measured directly with suitable instrumentation or computed on the basis of displacement and frequency. When computed, the following formula shall be used:
|
PV =
|
PV = 6.28 F X D
|
|
Where:
| |
PV =
|
Particle velocity, inches-per-second
| |
F =
|
Vibration frequency, cycles-per-second
| |
D =
|
Single amplitude displacement of the vibration, inches.
|
The maximum velocity shall be the vector sum of the three (3)
components recorded.
|
E.
Table Of Maximum Ground-Transmitted Vibration.
Table of Maximum Ground-Transmitted Vibration
| |||
---|---|---|---|
Zoning District
|
Particle Velocity, inches-per-second
Adjacent lot line
|
Residential District
| |
"I-1"
|
0.10
|
0.02
| |
"I-2"
|
0.20
|
0.02
|
F.
The values stated in Subsection (E) may be multiplied by two (2) for impact vibrations, i.e., discrete vibration pulsations not exceeding one (1) second in duration and having a pause of at least one (1) second between pulses.
G.
Vibrations
resulting from temporary construction activity that occurs between
7:00 A.M. and 7:00 P.M. shall be exempt from the requirements of this
Section.
[R.O. 2011 §400.630; Ord. No. 01-10 §1(12.10), 4-9-2001; Ord. No. 04-25 §1, 7-26-2004]
A.
For
purposes of this Section, the "odor threshold" is
defined as the minimum concentration in air of a gas, vapor or particulate
matter that can be detected by the olfactory systems of a panel of
healthy observers as appointed by the City Council.
[R.O. 2011 §400.635; Ord. No. 01-10 §1(12.11), 4-9-2001; Ord. No. 04-25 §1, 7-26-2004]
A.
Any
land use that emits any "air contaminant" as defined in Chapter 643,
RSMo., shall comply with applicable State standards concerning air
pollution as set forth in the Revised Statutes of Missouri and the
rules promulgated by the Missouri Department of Natural Resources
or its successor agency.
B.
No special use or conditional use permit may be issued with respect to any development covered by Subsection (A) until the developer provides written proof that the Missouri Department of Natural Resources has issued the appropriate State permits. The developer shall be required to provide copies of said permits showing that the development is otherwise in compliance with applicable air pollution laws.
[R.O. 2011 §400.637; Ord. No. 01-10 §1(12.12), 4-9-2001; Ord. No. 04-25 §1, 7-26-2004]
A.
No
land use in any district may discharge any waste contrary to the provisions
of the laws and regulations of the State of Missouri as administered
by the Missouri Department of Natural Resources, Missouri Department
of Health or other cognizant agency.
B.
No
land use in any district may discharge into the City sewage treatment
facilities any waste that cannot be adequately treated by biological
means.
[R.O. 2011 §400.640; Ord. No. 01-10 §1(12.13), 4-9-2001; Ord. No. 04-25 §1, 7-26-2004]
No land use in any district that requires for its operation
a daily average of more than two thousand (2,000) gallons of water
per employee is permissible in any district without first obtaining
a water usage variance permit.
[R.O. 2011 §400.645; Ord. No. 01-10 §1(12.14), 4-9-2001; Ord. No. 04-25 §1, 7-26-2004]
A.
No
land use may:
1.
Create any electrical disturbance that adversely affects any operations
or equipment other than those of the creator of such disturbance,
or
2.
Otherwise cause, create or contribute to the interference with electronic
signals (including television and radio broadcasting transmissions)
to the extent that the operation of any equipment not owned by the
creator of such disturbance is adversely affected.