The industrial performance standards indicated shall be considered minimum standards in those districts for which they are specified.
(A) Physical appearance. Automobile junk, salvage, wrecking, storage and similar operations shall be shielded from view from streets and from adjacent properties in another district by means of a sturdy, sight obscuring fence in good repair. All other operations shall be carried on within enclosed buildings except that new materials or equipment in operable condition may be stored in the open. Normal daily wastes of an inorganic nature may be stored in containers not in a building when the containers are not readily visible from a street. The provisions of this division (A) shall not be construed to prohibit the display of merchandise or vehicles for sale or the storage of vehicles, boats, farm machinery, trailers, mobile homes or similar equipment in operable condition.
(B) Fire hazard. No operation shall involve the use of highly flammable gases, acid, liquids, grinding processes or other inherent fire hazards. This provision shall not be construed to prohibit the use of normal heating fuels, motor fuels and welding gases when handled in accordance with other ordinances of the city.
(C) Noise. No operation shall be carried on which involves noise in excess of the normal traffic noise of the adjacent street at the time of the daily peak hour of traffic volume. Noise shall be measured at the property line and, when the level of the noise cannot be determined by observation with the natural senses, a suitable instrument may be used and measurement may include categorizations into a reasonable number of frequency ranges. All noises shall be muffled so as not to be objectionable due to intermittence, beat frequency or shrillness.
(D) Sewage and liquid wastes. No operation shall be carried on which involves the discharge into a sewer, water course or the ground liquid wastes of any radioactive nature or liquid wastes of a chemical nature which are detrimental to normal sewage plant operations or coercive and damaging to sewer pipes and installations.
(E) Air contaminants. There shall be applied the general rule that there shall not be discharged from any sources whatsoever the quantities of air contaminants or other material in the quantity as to cause injury, detriment, nuisance or annoyance to any considerable number of persons or to the public in general or to endanger the comfort, repose, health or safety to any the considerable number of persons or have a natural tendency to cause injury or damage to business, vegetation or property.
(F) Odor. The emission of odors that are generally agreed to be obnoxious to any considerable number of persons shall be prohibited. Observations of odor shall be made at the property line of the establishment causing the odor. As a guide to classification of odor, it shall be deemed that strong odors of putrefaction and fermentation tend to be obnoxious and that the odors as associated with baking or the roasting of nuts and coffee shall not normally be considered obnoxious within the meaning of this chapter.
(G) Glare and heat. All glare, such as welding arcs and open furnaces, shall be shielded so that they shall not be visible from the lot line. No heat from furnaces or processing equipment shall be sensed at the lot line to the extent of raising the temperature of air or materials more than 5°F.
(Prior Code, § 11-501)