Platte City, MO
Platte County
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Table of Contents
Table of Contents

Section 250.010 Definitions or Word Usage.

[Ord. No. 1563 §1, 11-28-2007]
For the purpose of this Chapter, the following terms, phrases, words and abbreviations shall have the following meanings, unless expressly stated otherwise:
A-WEIGHTED SOUND LEVEL
The sound pressure level in decibels as measured on a sound level meter using the A-weighted network.
CONSTRUCTION
Any site preparation, assembly, erection, repair, alteration or similar action, including demolition, for or of public or private rights-of-way, structures, utilities or similar property.
EMERGENCY WORK
Any work performed for the purpose of preventing or alleviating physical trauma, property damage or the protection of commerce, threatened or caused by an emergency.
NOISE DISTURBANCE
Any sound level which:
1. 
Exceeds an equivalent A-weighted sound level of sixty (60) db(A) across a residential property boundary between the hours of 7:00 A.M. and 10:00 P.M.;
2. 
Exceeds an equivalent A-weighted sound level of fifty-five (55) db(A) across a residential property boundary between the hours of 10:00 P.M. and 7:00 A.M.;
3. 
Disturbs the peace, quiet and comfort of neighboring residential inhabitants at any time with louder volume than is necessary for convenient hearing for the purposes of those who are in the room, vehicle or chamber in which the noise is generated and who are voluntary listeners, or is plainly audible across a residential property boundary fifty (50) feet or more from the source of the noise; or
4. 
A sound which is specifically prohibited pursuant to Section 250.030 of this Code.
RESIDENTIAL DISTRICT
Any of the following zoning districts: "R1-40", "R1-16", "R1-8", "R-2", "R-3", "R-4", and Residential Conservation District.
RESIDENTIAL PROPERTY BOUNDARY
An imaginary line along the ground surface, and its vertical extension, which separates the real property owned by one person or entity from that owned by another person or entity.
SOUND LEVEL
The quantity in decibels measured by a sound level meter satisfying the requirements of American National Standards Specifications for Sound Level Meters S1.4-1971. Sound level is the frequency - weighted sound pressure level obtained from the standardized dynamic characteristic "fast" or "slow" weighting A, B or C. Unless indicated otherwise, the A-weighting is understood.
SOUND LEVEL METER
An instrument which includes a microphone, amplifier, RMS detector, integrator or time averager, output meter, and weighting networks issued to measure sound pressure levels.

Section 250.020 Noise Disturbance Prohibited.

[Ord. No. 1563 §1, 11-28-2007]
No person or entity shall make, continue or cause to be made or continued any noise disturbance unless such noise disturbance is a result of construction work authorized by a building permit issued by the City when such work is occurring between the hours of 7:00 A.M. and 10:00 P.M. If the building permit issued by the City specifically authorizes work between 10:00 P.M. and 7:00 A.M., then noise resulting therefrom shall not be a noise disturbance in violation of this Chapter.

Section 250.030 Specific Noise Disturbances.

[Ord. No. 1563 §1, 11-28-2007]
A. 
The following acts and the causing thereof are declared to be noise disturbances in violation of this Chapter without regard to the sound level associated therewith:
1. 
Animals and birds. Owning, possessing or harboring any animal or bird which frequently or for continued duration howls, barks, meows, squawks or makes other sounds which create a noise disturbance across a residential real property boundary.
2. 
Domestic power tools. Operating or permitting the operation of any mechanically or electrically powered saw, drill, sander, grinder, lawn or garden tool, or similar device outdoors in residential areas between the hours of 10:00 P.M. and 7:00 A.M. so as to cause a noise disturbance across a residential real property boundary.
3. 
Firearms and similar devices. The use or firing of firearms or similar devices which create impulsive sound so as to cause a noise disturbance across a real property boundary or on a public space or right-of-way except that this prohibition shall not apply to the lawful use of fireworks.
4. 
Loud speakers and public address systems. Using or operating for any commercial or non-commercial purpose any loudspeaker, public address system, handheld electrically powered device amplifying speech or similar device such that the sound therefrom creates a noise disturbance.
5. 
Loud speakers and public address systems on public space. Using or operating for any commercial purpose any loudspeaker, public address system, hand-held electrically powered device amplifying speech, or similar device between the hours of 10:00 P.M. and 7:00 A.M. on a public right-of-way or public space.
6. 
Amplified music. Operating, playing or permitting the operation or, playing of any radio, television, phonograph, drum, musical instrument, sound amplifier or similar device which produces, reproduces or amplifies sound in any place of public entertainment which creates a noise disturbance across a residential real property boundary.

Section 250.040 Special Exemptions.

[Ord. No. 1563 §1, 11-28-2007]
Any term or condition of this Chapter notwithstanding the use of loud speakers and public address systems or amplified music in conjunction with any sporting event, entertainment event or other public proceeding conducted by a public school or upon public school premises shall not constitute a noise disturbance in violation of this Chapter.

Section 250.050 Special Permits.

[Ord. No. 1563 §1, 11-28-2007]
A. 
The Platte City Police Department shall adopt an appropriate form of application which persons or entities may submit to the Chief of Police to obtain a special permit for conducting a public event which may create noise to an extent that the same would constitute a noise disturbance for purposes of this Chapter 250. If upon review of the application the Platte City Chief of Police determines that the activity for which the permit is requested is made in connection with a legitimate business enterprise and that the noise disturbance will not continue beyond 12:00 Midnight on the date for which the permit is applied, he/she may issue a special permit to the applicant to engage in the activity which was the subject of the application. In no event shall a permit be issued for an activity which may result in a noise disturbance if such activity would constitute a peace disturbance under applicable City ordinances.
B. 
Any person or entity engaging in an activity in compliance with a special permit issued pursuant to the terms hereof shall not be deemed guilty of causing a noise disturbance.

Section 250.060 Special Penalty Provisions.

[Ord. No. 1563 §1, 11-28-2007]
A. 
No person or entity shall be convicted of violating the provisions of this Chapter 250 unless such person or entity has previously received one (1) or more warnings that they are engaging in an activity which constitutes a noise disturbance.
B. 
Any person or entity, upon being found guilty of violating any of the provisions of this Chapter 250, shall for the first (1st) such violation be fined not more than twenty-five dollars ($25.00), for the second (2nd) such violation not more than two hundred dollars ($200.00) and for the third (3rd) or any subsequent violation not more than five hundred dollars ($500.00). The continuation of any activity in violation of this Chapter 250 shall, after warning or issuance of a general ordinance summons, constitute a separate offense.