The M-2 heavy industrial district is established to provide for and encourage suitable areas in which industrial uses may locate, substantially free from residential or retail commercial activities. (Ord. 487, 7-23-2002)

In the M-2 heavy industrial zone, no building or premises shall be used nor shall any building or structure hereafter be erected or altered (unless provided by this title) except for one or more of the uses set forth in section 11-11-5 of this chapter. (Ord. 487, 7-23-2002)

The following site area requirements apply to the M-2 heavy industrial zone: Twenty percent (20%) of the area of the site must be left in open space free from structural elements. (Ord. 487, 7-23-2002)

   A.   Front Yard: No setback is required, except when an industrial lot abuts, touches, adjoins, or is across the street from a residential zone the front yard setback shall be no less than thirty five feet (35').

   B.   Side Yard: No setback is required, except when an industrial lot abuts, touches, adjoins, or is across the street from a residential zone, the side yard setback shall be no less than thirty five feet (35').

   C.   Rear Yard: No setback is required, except when an industrial lot abuts, touches, adjoins, or is across the street from a residential zone, the rear yard setback shall be no less than thirty five feet (35'). (Ord. 487, 7-23-2002)

   A.   Uses Permitted: Buildings, structures, or premises shall be used and buildings and structures shall hereinafter be erected, altered, enlarged, only for the following uses:

General businesses: All uses allowed in the C (commercial) and M-1 (light industrial) district.

Industrial:

Blacksmithing shop.

Bottling plant.

Contractor equipment.

Farm produce storage.

Flour milling.

Gunstock manufacturing.

Ice manufacturing, storage and sales.

Large implements and heavy equipment.

Machine shop.

Metal or wood fabrication plant.

Metalizing shop.

Paint shop, manufacture, storage, or both.

Planing mill.

Railroad.

Septic pumping service.

Sheet metal shop.

Storage yard for coal and/or fuel.

Tool and hardware manufacturing.

Trailer manufacturing, such as travel, house, and manufactured homes.

Welding shop.

Wholesale storage.

And any similar industry.

   B.   Uses Prohibited:

Automobile wrecking yards.

Concrete or asphalt batch plants.

Dumping or reduction operations.

Junkyards.

Pulp and paper mills.

Rendering plants.

Any use which might be especially obnoxious, offensive, hazardous, or detrimental to the public health and welfare of the residents of the city.

   C.   Conditional Uses: A conditional use may be granted for a permanent use that is not in conflict with the comprehensive plan and that is not permitted outright, because it may conflict with other uses in the district, unless special provisions are taken. Conditional use permits may be granted for the following uses:

Any plants or businesses that may consume high volumes of water.

Auction sales.

Bulk plants.

Food processing plants.

Junk, rags, paper, metal, and hides storage and sorting, collecting and/or baling, when conducted wholly within a completely enclosed building.

Milk products manufacturing.

Plastics fabrication.

Poultry and rabbit slaughter, processing and sales.

Towing services and impound yard.

Any uses not specifically listed above as prohibited or permitted uses, or as conditional uses, may, where appropriate, be considered. (Ord. 523, 5-8-2007)

Emissions of dust fall, smoke, and suspended matter shall meet the requirements of the state of Idaho air pollution control commission. (Ord. 487, 7-23-2002)

"Odorous matter" is defined as any material, gaseous, liquid, or solid that produces a response in the normal human nose. The release of odorous material from any plant shall be controlled so as not to become a nuisance or source of unreasonable discomfort at any point beyond the plant property line. (Ord. 487, 7-23-2002)

The discharge of toxic matters shall meet the requirements of the state of Idaho air pollution control commission. (Ord. 487, 7-23-2002)

The manufacture, utilization, and storage of radioactive materials is prohibited. (Ord. 487, 7-23-2002)

   A.   Materials Or Products That Detonate: The manufacture, transportation, storage, and use of materials or products that decompose by detonation shall be conducted in accordance with the National Fire Protection Association standard no. 495, "Code For Manufacture, Transportation, Storage And Use Of Explosive And Blasting Agents", and the rules and regulations governing explosives promulgated by the state of Idaho and other authorities having jurisdiction. Explosive materials not covered by these standards and regulations shall be manufactured, stored or utilized not closer than one hundred feet (100') from a plant property line or two hundred feet (200') from the boundary line separating it from a residential or commercial area.

   B.   Flammable Materials: The manufacture, transportation, utilization, and storage of flammable materials shall be conducted in accordance with accepted standards for safety and fire prevention. Such standards shall include the national fire codes, and the appropriate standards of the American Petroleum Institute, the Manufacturing Chemists' Association and other organizations that promulgate standards of good practice. The storage, utilization, or manufacture of flammable gases or liquids having a flashpoint below one hundred ten degrees Fahrenheit (110°F) shall not be permitted within two hundred feet (200') of the boundary line separating a site from any area within the city limits, except when stored underground or in containers of five thousand (5,000) gallons or less aboveground. (When flammable gases are stored in the gaseous phase, the above limits in gallons shall be multiplied by 30 to obtain the limit in cubic feet at 14.7 pounds per square inch absolute and 60 degrees Fahrenheit.)

   C.   Flammable Liquids/Waste System: Flammable liquids, that may get into the waste system, shall be trapped and contained at a point within the plant boundaries. No flammable liquids shall be permitted in the central waste collection and treatment system. (Ord. 487, 7-23-2002)

Land uses in the M-2 heavy industrial zone shall not emit noise causing sound levels greater than sixty five (65) decibels between seven o'clock (7:00) P.M. and seven o'clock (7:00) A.M. and eighty five (85) decibels between seven o'clock (7:00) A.M. and seven o'clock (7:00) P.M. beyond the boundaries of the site on which such use is conducted. (Ord. 487, 7-23-2002)

   A.   Signs: On premises signs are permitted in the M-2 heavy industrial zone.

   B.   Storage Of Materials And Machinery: All storage must be indoors, or within a six foot (6'), sight obscuring fence, or screened with vegetative materials so that the storage areas cannot be seen by adjacent properties and the traveling public. Storage areas must conform to the minimum setback regulations of the zone. (Ord. 487, 7-23-2002)

There are no height restrictions for buildings or structures in the M-2 heavy industrial zone. (Ord. 487, 7-23-2002)