§ 156.157 PERFORMANCE STANDARDS.
   (A)   Air pollution.
      (1)   Generally. In addition to the specific minimum standards set out below, any applicable rule, regulation, or licensing required by the Environmental Protection Agency or other federal regulatory agency must be met. An affidavit of compliance with all federal rules and regulations may be required by the Zoning Administrator.
      (2)   Smoke. For the purpose of grading in the density of smoke, the Ringlemann Chart, published by the United States Bureau of Mines, shall be employed. No industrial use may emit more than 70 smoke units (as defined by the United States Bureau of Mines) per stack or smoke in excess of Ringlemann No. 2. However, for the purposes of soot blowing, process purging, and fire cleaning, once during any 24-hour period, each stack may emit up to 80 smoke units up to and including Ringlemann No. 3, but not for more than five minutes.
      (3)   Particulate matter. For the purposes of this section, the term PARTICULATE MATTER shall mean divided liquid or solid material that is discharged and carried along in the air. The rate of emission of particulate matter for individual processes within the boundaries of any lot shall not exceed a figure of six-hundredths pounds per 1,000 pounds of effluent gas, of which no more than 10% by weight may be particles larger than 44 microns.
      (4)   Odor. The emission of odorous matter in such quantity as to be readily detectable at any point along lot lines or as to produce a public nuisance or hazard beyond lot lines is prohibited.
   (B)   Poisonous and injurious fumes and gases.
      (1)   The emission of any gas or fumes across lot lines in concentrations detrimental to or endangering public health, safety, comfort, and welfare or causing injury or damage to property or business is prohibited.
      (2)   The emission of toxic and nontoxic materials may not produce any concentration at a residence or business district boundary line exceeding 25% of the threshold limit as set for the fume or gas in question in the latest issue of Threshold Limit Values For Toxic Materials In Industry, issued by the State Board of Health, from the American Conference of Governmental Hygienists.
   (C)   Glare and heat. No use, operation, activity, or structure shall cause heat or glare to be a public nuisance at or beyond any residence or business district boundary.
   (D)   Vibration. No use shall cause vibrations or concussions detectable beyond lot lines without the aid of instruments.
   (E)   Noise.
      (1)   No use shall produce noise in excess of 75 decibels, day or night.
      (2)   No activity or operation producing noise, other than ordinary vehicle noise, shall be conducted so that noise from the activity or operation can be detected at any point off of the lot on which that use is located.
      (3)   Public safety sirens and related apparatus used solely to warn the public of an emergency shall be exempt from this standard.
   (F)   Fire and explosion hazards.
      (1)   Incombustible to moderate burning materials. The storage, utilization, or manufacture of materials or products ranging from incombustible to moderate burning, as determined for liquids by a closed cup flash point of not less than 187°F, is permitted subject to compliance with all performance standards for this district.
      (2)   Free burning to intense burning materials. The storage, utilization, or manufacture of materials or products ranging from free or active burning to intense burning, as determined for liquids by a closed cup flash point of less than 187°F but not less than 105°F, is permitted subject to compliance with all other performance standards for this district and provided the following conditions are met:
         (a)   Said materials or products shall be stored, utilized, or produced within completely enclosed buildings or structures that have incombustible exterior walls;
         (b)   All such buildings or structures shall be set back at least 40 feet from lot lines; and
         (c)   Buildings or structures containing such free burning to intense burning materials shall be protected throughout by an automatic sprinkler system complying with the installation standards prescribed by the American Insurance Association, or if the materials, goods, or products are liquids, the protection thereof shall be in conformity with the standards prescribed by the American Insurance Association.
      (3)   Flammable and explosive materials. The utilization in manufacturing processes of materials which produce flammable or explosive vapors or gases determined for liquids by a closed cup flash point of less than 105°F shall be permitted in this district, provided:
         (a)   The final manufactured product does not itself have a closed cup flash point of less than 187°F;
         (b)   The use and storage of such materials shall be in conformity with standards prescribed by the American Insurance Association;
         (c)   The storage of more than 50,000 gallons of materials or products having a closed cup flash point of less than 105°F (exclusive of storage of finished products in original sealed containers) is prohibited; and
         (d)   The storage of more than 100,000 gallons of materials or products having a closed cup flash point of less than 180°F (exclusive of storage of finished products in original sealed containers) is prohibited.
   (G)   Waste matter. No use shall accumulate within the lot or discharge beyond the lot lines any waste matter, whether liquid or solid, in conflict with applicable public health, safety, and welfare standards.
   (H)   Water pollution. No use shall be permitted to discharge liquid or solid wastes into public waters except as permitted under the Stream Pollution Control Law.
(Ord. 2014-26, passed 9- -2014) Penalty, see § 156.999