This chapter permits specific uses in specific districts; and these performance standards are designed to limit, restrict, and prohibit the effects of those uses outside their premises or district. All structures, lands, air, and waters shall hereafter, in addition to their use, site, and sanitary regulations, comply with the performance standards found in this article.
No activity shall emit any fly ash, dust, fumes, vapors, mists, or gases in such quantities as to cause soiling or danger to the health of persons, animals, vegetation or other forms of property. No activity shall emit any liquid or solid particles in concentrations exceeding 0.3 grains per cubic foot of the conveying gas nor any color visible smoke equal to or darker than No. 2 on the Ringelmann Chart described in the United States Bureau of Mine's Information Circular 7718, except for not more than four minutes during any six-hour period each stack or chimney may emit smoke of Ringelmann No. 3. No activity shall emit more than 10 smoke units per hour per stack or chimney except that once during any six-hour period each stack or chimney may emit up to 20 smoke units when blowing soot or cleaning fires.
All activities involving the manufacturing, utilization, processing, or storage of flammable and explosive materials shall be provided with adequate safety devices against the hazard of fire and explosion and with adequate firefighting and fire suppression equipment and devices that are standard in the industry. All materials that range from active to intensive burning shall be manufactured, utilized, processed, and stored only in completely enclosed buildings which have incombustible exterior walls and an automatic fire extinguishing system. The aboveground storage capacity of materials that product flammable or explosive vapors shall not exceed the following:
Closed Cup Flash Point
Gallons
Over 187° F.
400,000
105° F. to 187° F.
200,000
Below 105° F.
100,000
No activity shall emit glare or heat that is visible or measurable outside its premises except activities which may emit direct or sky-reflected glare which shall not be visible outside their district. All operations producing intense glare or heat shall be conducted within a completely enclosed building. Exposed sources of light shall be shielded so as not to be visible outside their premises.
A. 
No activity shall locate, store, discharge, or permit the discharge of any treated, untreated, or inadequately treated liquid, gaseous, or solid materials of such nature, quantity, obnoxiousness, toxicity, or temperature that might run off, seep, percolate, or wash into surface or subsurface waters so as to contaminate, pollute, or harm such waters or cause nuisances such as objectionable shore deposits, floating, or submerged debris, oil or scum, color, odor, taste, or unsightliness or be harmful to human, animal, plant, or aquatic life.
B. 
In addition, no activity shall withdraw water or discharge any liquid or solid materials so as to exceed, or contribute toward the exceeding of the minimum standards and those other standards and the application of those standards set forth in Chapter NR 102 of the Wisconsin Administrative Code for the Milwaukee River and its use.
A. 
No activity in an M-2 heavy manufacturing district shall produce a sound level outside the district boundary that exceeds the following sound level measured by a sound level meter and associated octave band filter:
[Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. II)]
Octave Band Frequency
(cycles per second)
Sound Level
(decibels)
0 to 75
Above 75 to 150
67
Above 150 to 300
59
Above 300 to 600
52
Above 600 to 1,200
46
Above 1,200 to 2,400
40
Above 2,400 to 4,800
34
Above 4,800
32
B. 
No other activity in any other district shall produce a sound level outside its premises that exceeds the following:
[Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. II)]
Octave Band Frequency
(cycles per second)
Sound Level
(decibels)
0 to 75
Above 75 to 150
67
Above 150 to 300
59
Above 300 to 600
52
Above 600 to 1,200
46
Above 1,200 to 2,400
40
Above 2,400 to 4,800
34
Above 4,800
32
C. 
All noise shall be so muffled or otherwise controlled as not to become objectionable due to intermittence, duration, beat frequency, impulse character, periodic character, or shrillness.
No activity shall emit any odorous matter of such nature or quantity as to be offensive, obnoxious, or unhealthful outside their premises. The guide for determining odor measurement and control shall be Chapter 13, Air Pollution Abatement Manual (current edition), prepared by the Manufacturing Chemists' Association, Inc., Washington, D.C. Farmers actively engaged in farming practices are expressly exempt from odor regulation.
No activity shall emit radioactivity or electrical disturbances outside its premises that are dangerous or adversely affect the use of neighboring premises.
[Amended at time of adoption of Code (see Ch. 1, General Provisions, Art. II)]
No activity in any district shall emit vibrations which are discernible without instruments outside its premises. No activity shall emit vibrations, which exceed the following displacement measured with a three-component measuring system:
Displacement
(inches)
Frequency
(cycles per second)
Outside the Premises
Outside the District
0 to 10
0.0020
0.0004
Over 10 to 20
0.0010
0.0002
Over 20 to 30
0.0006
0.0001
Over 30 to 40
0.0004
0.0001
Over 40 to 50
0.0003
0.0001
50 and Over
0.0002
0.0001