The following performance standards apply to all industrial uses permitted within an industrial zoning district:
1. Physical Appearance. All operations shall be carried on within an enclosed building except that new materials or equipment in operable condition may be stored outside. Normal daily inorganic wastes may be stored outside in containers, provided that such containers are not visible form the street.
2. Fire Hazard. Except in Heavy Industrial Zones, no operation shall involve the use of highly flammable gases, corrosive materials, strong acids or bases, liquids, or inherent fire hazards. This prohibition shall not apply to the normal use of heating or motor fuels and welding gases when handled in accordance with the regulations of Crawford County and the City of Denison.
(Ord. 1406 - June 11 Supp.)
3. Sewage and Wastes. No operation shall discharge into a sewer, drainage way, or the ground any material, which is radioactive, poisonous, detrimental to normal sewer plant operation, or corrosive to sewer pipes and installations.
4. Storage of Chemical Products. If allowed by Special Use Permit, any above or below ground storage of liquid petroleum products or chemicals of a flammable or noxious nature shall not exceed 150,000 gallons when stored on one lot less than one acre. Such storage shall not exceed 25,000 gallons in any one tank. Storage of liquid petroleum products or chemicals of a flammable or noxious nature in excess of 25,000 gallons shall be located at least 50 feet from any structure intended for human habitation and at least 200 feet from any Residential, Office, or Commercial zoning district.