[R.O. 2004 §463.010; Ord. No. 745 §§1 — 3(463.010), 10-22-1992; Ord. No. 882 §§1 — 4, 12-2-1997]
A. 
Zoning performance standards increase the viability of commercial, residential and industrial enterprises. Regulating growth through proper zoning also improves the quality of life and sense of well-being in a community. Performance standards shall apply to any land use or development listed as permitted or special use in the regulations of the Planned Business District, the "I-1" Light Industrial District, the "I-2" Heavy Industrial District and the Planned Industrial District.
B. 
Performance Standards.
1. 
Vibration. Maximum ground vibrations on a given lot shall not exceed measurements shown in the table below.
2. 
Noise. No use or operation shall exceed the maximum decibel levels designated for the octave band as set forth in the following table:
Maximum Permitted Sounds
Pressure Level in Decibels
Octave Band Cycles Per Second
Within or Adjacent to "R"Residential Districts
Within All Other Areas
0 to 75
95
79
75 to 150
70
74
150 to 300
65
66
300 to 600
59
59
600 to 1,200
53
53
1,200 to 2,400
48
47
2,400 to 4,800
48
41
Above 4,800
41
39
3. 
Odor, smoke, toxic gases and emission of particulate matter. No use shall violate the St. Louis metropolitan area emissions standards for odor, smoke, toxic gases, dirt, dust, fly ash or other particulate matter.
4. 
Radiation. Every use shall be operated so that radioactive emissions do not exceed standards established by the Nuclear Regulatory Commission.
5. 
Glare and heat. Any operation producing intense glare or heat shall be conducted in an enclosure and shall be imperceptible along any lot line without instruments.
6. 
Any addition, modification or change in any regulations or code referred to in the zoning performance standards shall become a part of these regulations.