The purpose of the M-2 general industrial zone is to preserve the lands of the city appropriate for heavy industrial uses, to protect these lands from intrusion by dwellings and inharmonious commercial uses, to promote uniform and orderly industrial development, to protect property values, to foster an efficient and aesthetically pleasant industrial district, to attract and encourage the location of desirable industrial plants, to provide an industrial environment which will be conducive to good employee relations and pride on the part of all citizens of the community, and to provide proper safeguards and appropriate transition for surrounding land uses. (Ord. 1000 § 29.00, 1955)

In the M-2 zone:

   A.   Site plans and elevations for all new construction and/or additions shall be submitted to the commission for review and approval.

   B.   Buildings, structures and land shall hereafter be erected, altered or enlarged only for the uses set out in sections 18.116.030 through 18.116.050 of this chapter. (Ord. 1000 § 29.10, 1955)

Principal permitted uses in the M-2 zone include:

   A.   Uses permitted in the M-1 industrial zone.

   B.   Contractors' yards and shops, including building, masonry, painting, concrete, electrical, plumbing, refrigeration, roofing, heating and air conditioning.

   C.   Electrical distribution substations, electrical transmission substations, nonnuclear electric generating stations, and public utility buildings, office, and service yards, and steam electric generating stations.

   D.   Food products manufacture, including such processes as cooking, roasting, refining and extraction involved in the preparation of such products as cereal, chocolate, cider, coffee, glucose, rice, flour, feed and grain, vegetable oils and yeast; but not including fish or meat products.

   E.   Lumberyards, lumber processing and woodworking, including planing mills, plywood, veneering, wood preserving and laminating.

   F.   Machine tool manufacture, including metal lathes, presses and stamping machines, and woodworking machines.

   G.   Machinery manufacture, including electrical, agricultural, construction, mining, air conditioning equipment, dishwashers, dryers, furnaces, heaters, stoves and washing machines.

   H.   Manufacture of chemicals and chemical products, except those requiring a conditional use permit.

   I.   Manufacture, storage, reconditioning and exchange of such items as cans, containers, boxes, barrels, bottles and bags.

   J.   Manufacturing and processing of the following, conducted in an enclosed building, except that any outdoor manufacturing or processing operation in this group of uses shall be subject to approval of a conditional use permit:

      Abrasives.

      Aircraft and aircraft accessories.

      Aluminum products.

      Asbestos.

      Automobiles, trucks and trailers.

      Automotive accessories and parts.

      Boats.

      Bricks.

      Burial vaults and caskets.

      Candles.

      Canvas.

      Carpets and rugs.

      Cement products.

      Chalk.

      Clay pipe and clay products.

      Composition wallboard.

      Glass, but excluding blast furnaces.

      Glazed tile.

      Graphite and graphite products.

      Hemp products.

      Ink.

      Jute products.

      Linter.

      Metal foil.

      Metal products.

      Missiles and missile components, excluding explosive fuels.

      Motors and generators.

      Paraffin products.

      Plastics.

      Porcelain products.

      Pulp goods.

      Pumice.

      Putty.

      Railroad equipment.

      Rubber products.

      Sand and lime products.

      Sisal products.

      Starch and dextrine.

      Steel products.

      Stone products.

      Structural steel products.

      Tile.

      Wire and wire products.

   K.   Metal fabricating, heat treating, pickling and stamping.

   L.   Storage facilities, except those requiring a conditional use permit.

   M.   Warehousing, ancillary to another primary use (see RMC Chapter 18.156, Article XII).

   N.   Warehousing, in buildings with less than 50,000 square-feet in gross floor area, and not more than five truck docks or dock high loading doors. (Ord. 2955, 2023: Ord. 2436 § 3, 2000: Ord. 1000 § 29.10(A), 1955)

The commission may, by resolution of record, permit any other uses which it may determine to be similar to those listed above, in conformity with the intent and purpose of the M-2 zone, and not more obnoxious or detrimental to the public health, safety and welfare, or to other uses permitted in this zone. (Ord. 1000 § 29.10(B), 1955)

In the M-2 zone, the following uses may be permitted subject to approval of a conditional use permit:

   A.   Airports, heliports and landing strips.

   B.   Animal, food or beverage processing of the following kinds:

      Breweries, distilleries and wineries.

      Meat or fish products packing, canning or processing.

      Vinegar, yeast and sauerkraut.

   C.   Asphalt, concrete and earth products activities of the following kinds:

      Asphalt batching plants.

      Concrete mixing and batching plants.

      Rock crushing plants and aggregate dryers.

      Sandblasting plants.

      Butane service and filling stations.

   D.   Commercial and service type uses which the commission, after study and deliberation, finds are needed to serve the M-2 district, and which will not interfere with the orderly development of the industrial area, and which will be compatible with industrial uses.

   E.   Distilling of:

      Alcohol.

      Bones.

      Coal.

      Coal tar.

      Coke.

      Wood.

      Heavy metal works of the following kinds:

      Blast furnaces.

      Boiler works.

      Drop forge industries.

      Drop hammers.

      Forges, foundries and forging works.

      Metal and metal ore reduction or smelting.

      Rolling mills.

   F.   Manufacturing of:

      Acetylene.

      Ammonia.

      Aniline dyes.

      Asphalt or asphalt products.

      Bleaching powder.

      Bronze, babbitt metal and similar alloys.

      Carbide.

      Carbolic, hydrochloric, picric and sulfuric acid.

      Caustic soda.

      Cellophane.

      Cellulose and celluloid.

      Cement, lime, gypsum or plaster of Paris.

      Charcoal, lampblack or fuel briquettes.

      Chlorine.

      Coal, coke or coal tar products.

      Creosote.

      Exterminating agents.

      Fertilizer.

      Film.

      Gas.

      Lacquer, shellac, turpentine, varnish or calcimine (kalsomine).

      Linoleum or oilcloth.

      Matches.

      Nitrating of cotton and other materials.

      Phenol.

      Potash.

      Pyroxylin.

      Rubber (natural or synthetic).

      Soap, tallow, grease and lard.

      Radio transmitter towers, higher than fifty feet (50') above ground level.

   G.   Refining of:

      Fats and oils.

      Metals and metal ores.

      Petroleum and petroleum products.

      Sugar.

      Salvage, wrecking and disposal activities of the following kind:

      Automobile wrecking and salvage.

      Building wrecking and salvage.

      Dumps, including garbage and trash disposal.

      Industrial waste material salvage, waste metal, rag, clothing, glass and paper salvage operations.

      Sewer farm or sewage disposal plants.

   H.   Storage of:

      Automobiles and other vehicles purchased for wrecking operations.

      Fertilizer or manure.

      House movers' equipment and buildings moved from other locations.

      Oil or gas in amounts of two thousand five hundred (2,500) barrels or more.

      Oil or gas within three hundred feet (300') of any residential zone, school or park.

      Sand, gravel, rock or decomposed granite in amounts of two thousand (2,000) tons or more.

      Used building materials or secondhand buildings.

I.   Warehouses and logistics distribution centers, in accordance with chapter 18.156 of this title. (Ord. 2955, 2023: Ord. 1000 § 29.10(C), 1955)

The property development standards of the M-1 zone (chapter 18.108 of this title) shall apply to all property in the M-2 zone. (Ord. 1000 § 29.20, 1955)

All uses in the M-2 zone shall comply with the following limitations or performance standards, set out in sections 18.116.090 through 18.116.150 of this chapter. (Ord. 1000 § 29.30, 1955)

In the M-2 zone, all storage activities involving flammable and explosive materials shall be provided with adequate safety devices against the hazard of fire and explosion and adequate firefighting and fire suppression equipment and devices standard in industry. All incineration is prohibited. (Ord. 1000 § 29.30(A), 1955)

In the M-2 zone, all devices which radiate radio frequency energy shall be so operated as not to cause interference with any activity carried on beyond the boundary line of the property on which the device is located. "Radio frequency energy" is electromagnetic energy at any frequency in the radio spectrum between ten (10) kilocycles and three million (3,000,000) megacycles. (Ord. 1000 § 29.30(B), 1955)

In the M-2 zone, no use shall be conducted in a manner which produces noise exceeding sixty (60) CNEL (community noise equivalent level) when measured at the property line of any property used for residential, hospital, school or park use. (Ord. 2436 § 2, 2000: Ord. 1000 § 29.30(C), 1955)

Every use in the M-2 zone shall be so operated that the ground vibration inherently and recurrently generated is not perceptible, without instruments, at any point on any boundary line of the lot which abuts a residential, commercial or more restricted industrial zone. (Ord. 1000 § 29.30(D), 1955)

In the M-2 zone, smoke emission shall be controlled in accordance with standards and regulations established by the air pollution control board. (Ord. 1000 § 29.30(E), 1955)

   A.   Every use in the M-2 zone shall be so operated that it does not emit dust, heat or glare in such quantities or degrees as to be readily detectable on any boundary line of the lot on which the use is located.

   B.   Glare from arc welding, acetylene torch cutting or similar processes shall be performed so as not to be seen from any point beyond the outside of the property. (Ord. 1000 § 29.30(F), 1955)

In M-2 zones:

   A.   Odor: The emission of obnoxious odors of any kind shall not be permitted.

   B.   Gas: No gas shall be emitted which is deleterious to the public health, safety or general welfare. (Ord. 1000 § 29.30(G), 1955)