Strafford City Zoning Code
ARTICLE XVIII
Manufacturing and Processing Performance Standards
Section 400.765 Smoke.
[Ord. No. 659 §1, 5-2-2011]
A.
All new uses in the commercial and manufacturing zoning districts must produce only a nominal amount of smoke that is emitted into the atmosphere.
B.
For the purpose of determining "nominal", the Ringlemann Chart, as adopted and published by the United States Department of Interior, Bureau of Mines Information Circular 8333, May 1967, shall be used.
C.
All measurements shall be taken at the point of emission of the smoke.
Section 400.770 Noise.
[Ord. No. 659 §1, 5-2-2011]
A.
Except as provided in Subsection (E), the table set forth in Subsection (D) establishes the maximum permissible noise levels for the "M-1" and "M-2" Districts. Measurements shall be taken at the boundary line of the lot where the VI classification use is located.
B.
The standards established in the table set forth in Subsection (D) are expressed in terms of the Equivalent Sound Level (Leq) which must be calculated by taking one hundred (100) instantaneous A-weighted sound levels at ten (10) second intervals.
C.
Noise Standards.
1.
Maximum noise level. No operation or activity shall cause or create noise in excess of the sound levels prescribed below.
2.
Method of measurement. For the purpose of measuring the intensity and frequency of sound, the sound level meter shall be employed. The flat network and the fast meter response of the sound level meter shall be used.
3.
Exemptions.
a.
Noises not directly under the control of the property user;
b.
Noises emanating from temporary construction by the property user between 7:00 A.M. and 9:00 P.M.;
c.
The noises of safety signals, warning devices, and emergency pressure relief valves;
d.
Transient noises of moving sources such as automobiles and trucks on public rights-of-way, airplanes, and railroad equipment on railroad rights-of-way.
D.
Sound Pressure Level Standards.
1.
At residence district boundaries. At no point on or beyond the boundary of the nearest residence district shall the sound pressure level resulting from any use, operation, or activity exceed the maximum permitted sound levels set out below.
a.
In the "M-1" District:
Octave Band Preferred Center Frequencies | Maximum Permitted Sound Pressure Level At Decibels | ||
|---|---|---|---|
Cycles Per Sound | 7:00 A.M. — 9:00 P.M. | 9:00 P.M. — 7:00 A.M. | |
31.5 | 76 | 72 | |
63 | 71 | 67 | |
125 | 65 | 61 | |
250 | 57 | 53 | |
500 | 51 | 47 | |
1,000 | 45 | 41 | |
2,000 | 39 | 35 | |
4,000 | 34 | 26 | |
8,000 | 32 | 21 | |
b.
In the "M-2" District:
Octave Band Preferred Center Frequencies | Maximum Permitted Sound Pressure Level At Decibels | ||
|---|---|---|---|
Cycles Per Sound | 7:00 A.M. — 9:00 P.M. | 9:00 P.M. — 7:00 A.M. | |
31.5 | 79 | 75 | |
63 | 74 | 70 | |
125 | 68 | 64 | |
250 | 60 | 56 | |
500 | 54 | 50 | |
1,000 | 48 | 44 | |
2,000 | 43 | 39 | |
4,000 | 38 | 34 | |
8,000 | 36 | 32 | |
2.
Along adjacent lot boundaries. At no point on or beyond the lot lines of an operation shall the sound pressure level resulting from any use, operation, or activity exceed the maximum permitted sound levels set out next page.
a.
In the "M-1" District:
Octave Band Preferred Center Frequencies | Maximum Permitted Sound Pressure Level At Decibels | ||
|---|---|---|---|
Cycles Per Sound | 7:00 A.M. — 9:00 P.M. | 9:00 P.M. — 7:00 A.M. | |
31.5 | 79 | 76 | |
63 | 74 | 74 | |
125 | 68 | 68 | |
250 | 64 | 60 | |
500 | 58 | 53 | |
1,000 | 52 | 47 | |
2,000 | 47 | 41 | |
4,000 | 43 | 36 | |
8,000 | 40 | 32 | |
b.
In the "M-2" District:
Octave Band Preferred Center Frequencies | Maximum Permitted Sound Pressure Level At Decibels | ||
|---|---|---|---|
Cycles Per Sound | 7:00 A.M. — 9:00 P.M. | 9:00 P.M. — 7:00 A.M. | |
31.5 | 86 | 82 | |
63 | 81 | 77 | |
125 | 75 | 71 | |
250 | 67 | 63 | |
500 | 60 | 56 | |
1,000 | 54 | 50 | |
2,000 | 49 | 45 | |
4,000 | 44 | 40 | |
8,000 | 41 | 37 | |
c.
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 (D), 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.
d.
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.
Section 400.775 Vibration.
[Ord. No. 659 §1, 5-2-2011]
A.
All new uses in the commercial and manufacturing zoning districts must produce only a nominal amount of ground-transmitted vibrations.
B.
The instrument used to measure vibrations shall be a three-component measuring system capable of simultaneous measurement of vibration in three (3) mutually perpendicular directions.
C.
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.
Section 400.780 Odors.
[Ord. No. 659 §1, 5-2-2011]
A.
All new uses in the commercial and manufacturing zoning districts must produce only a nominal amount of odor.
Section 400.785 Air Pollution.
[Ord. No. 659 §1, 5-2-2011]
Any use that emits any "air contaminant" as defined in Section 643.02, RSMo., shall comply with applicable State standards concerning air pollution as set forth in Chapter 643, RSMo.
Section 400.790 Disposal of Liquid Waste.
Section 400.795 Electrical Disturbance or Interference.
[Ord. No. 659 §1, 5-2-2011]
A.
No use in any district may create any electrical disturbance that adversely affects any operations or equipment other than those of the creator of such disturbance, or
B.
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.
Section 400.800 Exterior Lighting Standards.
[Ord. No. 659 §1, 5-2-2011]
A.
The purpose of this Section is to regulate the spillover of light and glare on operators of motor vehicles, pedestrians and land uses in the proximity of the light source. With respect to motor vehicles in particular, safety considerations form the basis of the regulations contained herein. In other cases, both the nuisance and hazard aspects of glare are regulated. This Section is not intended to apply to public street lighting, signs or seasonal displays.
B.
The following standards are required of all exterior lighting, subject to exemptions in Subsection (C).
1.
The light source or luminaries for all exterior lighting shall have a cutoff so that the bare light bulb, lamp or light source is completely shielded from the direct view of an observer at ground level at a property line adjacent to a public right-of-way or property zoned residential or, if a bufferyard is required, at the interior bufferyard line.
2.
No flickering or flashing lights shall be permitted.
3.
Light sources or luminaries shall not be located within bufferyard areas except on pedestrian walkways.
C.
Exemptions.
1.
Outdoor recreational uses. Because of their unique requirements for nighttime visibility and their limited hours of operation, ball diamonds, playing fields, and tennis courts shall be exempt from the exterior lighting standard of Subsection (B) These outdoor recreational uses must meet all requirements of this Section and of this Article.
2.
Private outdoor lights. Private outdoor lights installed by a public utility on private property for security purposes are exempt from the exterior lighting standards of Subsection (B), provided the installation is approved by all property owners of residential property from which the light source can be viewed directly.
3.
In "M-1" and "M-2" Districts. Due to unique lighting requirements for some industrial activities, exterior lighting, except for parking lot lighting, shall be exempt from the exterior lighting standards of Subsection (B) provided that direct illumination from any light source does not cause illumination in excess of one-half (0.5) lumens per square foot in any residential district.