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Dardenne Prairie City Zoning Code

ARTICLE XII

Performance Standards

Section 405.700 General Provisions.

[Ord. No. 516 §20(20.01), 6-21-2001]
No parcel, lot, building or structure in any district shall be used or occupied in any manner so as to create any dangerous, injurious, noxious or otherwise objectionable element or condition so as to adversely affect the surrounding area or adjoining premises provided that any use permitted by this Chapter may be undertaken and maintained if acceptable measures and safeguards are employed to limit dangerous and objectionable elements to acceptable limits as established by the following performance requirements. Environmental comparability shall be of primary concern.

Section 405.705 Fire Hazard.

[Ord. No. 516 §20(20.02), 6-21-2001]
Any activity involving the use or storage of flammable or explosive materials shall be protected by adequate fire-fighting and fire suppression equipment and by such safety devices as are normally used in the handling of any such material. Such hazards shall be kept removed from adjacent activities to a distance that is compatible with the potential danger involved.

Section 405.710 Radioactivity, Electrical or Radioelectrical Disturbance.

[Ord. No. 516 §20(20.03), 6-21-2001]
No activity shall emit dangerous radioactivity at any point or unreasonable electrical or radioelectrical disturbance adversely affecting the operation at any point of any equipment other than that of the creator of such disturbance.

Section 405.715 Vibration.

[Ord. No. 516 §20(20.04), 6-21-2001]
No vibration shall be permitted which is discernible without instruments on any adjoining lot or property.

Section 405.720 Smoke.

[Ord. No. 516 §20(20.05), 6-21-2001]
Smoke shall not be emitted with a density greater than No. 1 on the Ringleman Chart as issued by the U.S. Bureau of Mines except for blow-off periods of ten (10) minutes duration of one (1) per hour when a density of not more than No. 2 is permitted.

Section 405.725 Odor.

[Ord. No. 516 §20(20.06), 6-21-2001]
No malodorous gas or matter shall be permitted which is offensive so as to produce a public nuisance or hazard on any adjoining lot or property.

Section 405.730 Air Pollution.

[Ord. No. 516 §20(20.07), 6-21-2001]
No pollution of air by fly-ash, dust, vapors or other substances shall be permitted which is harmful to health, animals, vegetation or other property or which causes soiling of exposed property. In addition, all State and Federal requirements shall be addressed.

Section 405.735 Glare.

[Ord. No. 516 §20.(20.08), 6-21-2001]
No direct or reflected glare shall be permitted which is visible from any property or from any public street, road or highway.

Section 405.740 Noise.

[Ord. No. 516 §20(20.09), 6-21-2001]
Noise which is objectionable due to volume, frequency or beat shall be muffled or otherwise controlled so that there is no productions of sound discernible at lot lines in excess of the average intensity of street and traffic noise at the lot lines. Air raid sirens and related apparatus used solely for public purposes are exempt from this requirement. The L-10 noise level (that level which is exceeded ten percent (10%) of the time) shall not exceed the following measurements at any point past the property line of the lot on which the noise is generated.
Octave Band Decibels
0 — 75 CPS (Cycles Per Second)
55 dB
75 — 1200 CPS
40 dB
1200 — 4800 CPS
25 dB
4800 CPS and above
22 dB

Section 405.745 Water Pollution.

[Ord. No. 516 §20(20.10), 6-21-2001]
Pollution of streams and other bodies of water shall be subject to such requirements and regulations established by the State of Missouri, Department of Natural Resources (Water Quality Standard — 10 CSR 20 — 7.031) and the City of Dardenne Prairie.

Section 405.750 Dust.

[Ord. No. 516 §20(20.11), 6-21-2001]
Dust shall not be permitted from gravel driveways or parking areas that create a nuisance as deemed by the Board of Aldermen.