The manufacturing districts set forth in this chapter are established to protect the public health, safety, comfort, convenience and the general welfare and to protect the economic base of the city, as well as the value of real estate, by regulating manufacturing development in appropriate locations. These general objectives include, among others, the following specific objectives: (1996 Code app. A § 13.1)

   A.   To protect established residential areas, and the health of families living therein, by restricting those nearby manufacturing activities which may create offensive noise, vibration, smoke, dust, odors, heat, glare, fire hazards and other objectionable influences, to those areas which are appropriate therefor. (1996 Code app. A § 13.1-1)

   B.   To provide adequate space in appropriate locations for most types of manufacturing and related activities so that the economic structure of the community may be strengthened, and that employment opportunities may be found in the interest of public prosperity and welfare. (1996 Code app. A § 13.1-2)

   C.   To provide more space for manufacturing activities in locations accessible to rail and highways, so that the movement of raw materials, finished products and employees can be carried on efficiently and with a minimum of danger to public life and property. (1996 Code app. A § 13.1-3)

   D.   To establish proper standards of performance which will restrict obnoxious manufacturing activities, while at the same time, encourage and permit the manufacturing activities which have adopted facilities for the processing of finished products without adversely affecting the health, happiness, safety, convenience and welfare of the people living and working in nearby areas. (1996 Code app. A § 13.1-4)

   E.   To protect manufacturing districts from incompatible uses of land by prohibiting the use of such space for new residential development, thereby preserving the land for a more appropriate use in accordance with the plans for city improvement and development. (1996 Code app. A § 13.1-5)

   F.   To promote the most desirable use of land in accordance with a well considered plan of land use for all of the city, to conserve the use of property, to promote stability of manufacturing activities and related development in each area of the community, to enhance and stabilize the value of land and to protect the tax base of the city. (1996 Code app. A § 13.1-6)

Since most uses permitted in the M-1 manufacturing district will be in proximity to residential districts, it is hereby declared that performance standards shall be high, and that all manufacturing, processing or assembly of materials and products must be carried on in a manner not injurious or offensive to the occupants of adjacent premises.

Any use permitted in a B district, but not including residences or apartments, except such dwelling accommodations as may be needed to house a caretaker or watchman employed on the premises and his family.

Any other manufacturing establishment that can be operated in compliance with the requirements of this article.

Apparel and other products manufactured from textiles.

Artificial limb manufacture.

Bedspring and mattress manufacture.

Bicycle manufacture.

Brooms and brushes manufacture.

Canvas and canvas products manufacture.

Carpet and rug cleaning.

Cleaning and dyeing establishments when employing facilities for handling more than one thousand (1,000) pounds of dry goods per day.

Drapery and bedding manufacture.

Engraving.

Fur goods manufacture, not including tanning or dyeing.

Hosiery manufacture.

Laundries, more than one thousand (1,000) pounds' daily capacity.

Lumber and other building material sales.

Musical instruments manufacture, including pianos and organs.

Plastic products, but not including the processing of the raw materials.

Public utility facilities, i.e., filtration plant, water reservoir or pumping station, transformer station, electrical substation and distribution center, gas regulation center and underground gas holder station, and other similar facilities.

Rubber products (small) such as washers, gloves, footwear and bathing caps, but excluding rubber and synthetic rubber processing.

Sale of trailers, trucks over two thousand (2,000) pounds, farm implements and other similar equipment on an open lot.

Shoes and boots manufacture.

Sporting and athletic equipment manufacture.

Storage of household goods.

Tool and die shops.

Tools and hardware manufacture, such as hand tools, bolts, nuts, screws, cutlery, house hardware, locks and plumbing appliances.

Toys and children's vehicles manufacture.

Wire brush manufacture. (Ord. 1252, 3-23-1999; amd. 2010 Code; Ord. 1786, 1-10-2023)

No building or structure shall be erected or structurally altered to exceed a height of six (6) stories nor shall it exceed seventy five feet (75') in height. (Ord. 1252, 3-23-1999; amd. 2010 Code)

   A.   Maximum Ground Area: The maximum ground area occupied by all buildings shall be not more than sixty percent (60%) of the area of the lot or tract on which a building permit has been issued. (Ord. 1252, 3-23-1999)

   B.   Front Yard: There shall be a front yard having a depth of not less than twenty five feet (25') wherein there shall be no structure of any kind or open storage of materials or equipment. (Ord. 1252, 3-23-1999; amd. 2010 Code)

   C.   Side Yard: There shall be a minimum side yard of not less than fifteen feet (15') on both sides of the building or buildings, but where the property is adjacent to an R district, there shall be a side yard of not less than twenty five feet (25') on the side nearest to residential lots. The parking of private automobiles may be permitted within the side yard areas, but not closer than five feet (5') to any lot zoned for residential use.

   D.   Rear Yard: A rear yard is not required except where a lot abuts upon an R district, in which case, there shall be a rear yard of not less than thirty feet (30'), and no storage of materials or equipment, or the parking of automobiles, shall take place within the ten feet (10') closest to any residential lot or lots. (Ord. 1252, 3-23-1999)

The uses permitted in the M-2 manufacturing district include those manufacturing, processing or assembling of materials and products which must be carried on in a manner not injurious or offensive to the occupants of adjacent premises by reason of emission of odors, fumes or gases, dust, smoke, noise, vibrations, or fire hazards. Therefore, the following uses may be permitted, provided there is compliance with the performance standards established in this article:

Any use permitted in M-1 district.

Any other manufacturing establishment that can be operated in compliance with the requirements of this article, without creating objectionable noise, odor, dust, smoke, gas, fumes, or vapor and that is a use compatible with the use and occupancy of adjoining properties.

Alcoholic beverages.

Automobile painting, repairing, reconditioning, and body and fender repair, when done within the confines of a structure.

Batteries, manufacture and rebuilding.

Belting.

Boat manufacture and body repair and painting.

Box and crate manufacture.

Brick, tile and terra cotta manufacture.

Building equipment, building materials, such as prefabricated houses, composition wallboards, partitions and panels manufacture; coal, sand and gravel yards; yards for contracting equipment, maintenance or operating equipment of public agencies, or public utilities or materials or equipment of similar nature.

Bus line shops and garages.

Canning and preserving.

Carpet manufacturing.

Carting, express hauling or storage yards (delivery in the metropolitan area only).

Ceramic products, pottery and glazed tile.

Chick hatcheries.

Cigarette and cigar manufacture.

Coated fabrics, except rubberized.

Coffin manufacture.

Cork and cork products.

Creameries, dairies, ice cream and ice manufacture.

Drugs and pharmaceutical products.

Dyes, aniline, ink pigments and others.

Electric motors and generators.

Felt manufacture.

Glass products, from previously manufactured glass.

Graphite and graphite products.

Heating appliances and sheet metal products including stoves and ranges.

Machine shops and metal products manufacture, when not equipped with heavy (exceeding 50 tons' pressure) punch presses, drop forges, riveting and grinding machines or any other equipment which may create noise, vibration, smoke, odors, heat, glare or fire hazards exceeding the performance standards made a part of this article.

Metal polishing and plating.

Motor testing or internal combustion motors.

Perfumes and cosmetics.

Stone, marble and granite grinding and cutting.

Storage of flammable liquids, fats or oil in tanks, each of fifty thousand (50,000) gallons' or less capacity, but only after the location and protective measures have been approved by the city council.

Textiles: spinning, weaving, dyeing and printing.

Truck, tractor, trailer or bus storage yards including a truck terminal. (Ord. 1252, 3-23-1999; amd. 2010 Code)

No building or structure shall hereafter be erected or structurally altered to exceed a height of six (6) stories or seventy five feet (75'), except communications towers and energy windmills. (Ord. 1252, 3-23-1999; amd. 2010 Code)

   A.   Front Yard: No front yard shall be required when all of the frontage on one side of the street between intersecting streets, a public area, or a railroad right of way is located in an M-2 manufacturing district. Where the frontage on one side of a street between two (2) intersecting streets is located partially in an M-2 district and partially in some other district, the front yard requirements of the other use district shall apply to the M-2 district.

   B.   Side Yard: Same as required in the M-1 manufacturing district.

   C.   Rear Yard: Same as required in the M-1 manufacturing district. (Ord. 1252, 3-23-1999)

The following requirements shall apply:

   A.   Noise:

      1.   The sound pressure level, to be measured as described below, shall not exceed the following decibel levels in the designated octave bands when adjacent to the designated types of use districts:

   SOUND LEVEL IN DECIBELS

 

      2.   Objectionable sounds of an intermittent nature which are not easily measured shall be controlled so as not to become a nuisance to adjacent uses.

      3.   Measurement of sounds is to be made at the nearest boundary of the nearest residential area or at any other point along the boundary where the level is higher. The sound levels shall be measured with a sound level meter and associated octave band filter as prescribed by the American Standards Association.

   B.   Smoke And Particulate Matter: The emission of smoke or dust by manufacturing plants in an amount sufficient to create a general nuisance to adjoining properties shall be prohibited. Total emission of smoke and particulate matter shall be limited to the following:

      1.   Ringelmann Requirements: All smoke and the emission of all other particulate matter in quantities sufficient to produce an opacity at any point greater than Ringelmann 3 is prohibited. The only exception shall be a plume consisting entirely of condensed steam. A "Ringelmann 1 unit" is defined as twenty percent (20%) density for one minute. No more than fifteen (15) units of Ringelmann smoke shall be permitted per hour, and no smoke more intense than Ringelmann 2; except, that during one hour of a twenty four (24) hour day, thirty (30) units of smoke may be emitted but with no smoke more intense than Ringelmann 3. The total quantity of emitted solids shall not exceed one pound per hour, per acre of lot area.

   C.   Odors: No odors shall be emitted by any use permitted in this district in such quantities as to be readily detectible by an average observer at any point on the boundary line of the premises or beyond.

   D.   Noxious Gases: Processes and operations of permitted uses capable of dispersing gases or toxic particulates into the atmosphere must be hooded or otherwise suitably enclosed. The emission of such toxic gases or particulate matter shall be from a stack.

   E.   Glare And Heat: Operations producing intense light or heat shall be performed within an enclosed building and not visible beyond any lot line bounding the property whereon the use is conducted.

   F.   Vibrations: There shall be no uses which create heavy, earth shaking vibrations which are noticeable at the property line of the subject premises. (Ord. 1252, 3-23-1999)

The uses permitted in the M-3 manufacturing district generally include those manufacturing and industrial activities which cannot be operated economically without creating some conditions which may be obnoxious or objectionable to the occupants of adjoining properties and, for that reason, must be grouped in areas where similar industrial uses are now located or where the permitted uses will be best located in accordance with the comprehensive land use plan of the city, which is designed to protect the welfare of the community.

Acetylene gas manufacture.

Acid manufacture.

Animal slaughterhouse and stockyards.

Electric power plant.

Incinerator or reduction of garbage, dead animals, offal or refuse, except for municipal purposes.

Junkyards and automobile wrecking yards.

Lumber, preserving treatment, processing, sawmills and planing mills.

Machinery, heavy manufacturing and repair, including electrical, construction, mining and agriculture.

Meat and fish products, packing and processing of, but not including slaughtering and glue and size manufacturing.

Metal foundries, casting and smelting.

Metal stamping and extrusion of metal products.

Petroleum refining.

Railroad products, such as railroad car and locomotive manufacture.

Rock crushing.

Rubber products, including tires and tubes and tire recapping.

Stone mill or quarry.

Sulfuric, nitric, hydrochloric or picric acid manufacture.

Tar roofing or waterproofing manufacture.

Vinegar manufacture.

In general, those uses which have been declared a nuisance in any court of record or which are, or may be, unreasonably obnoxious or offensive, in the opinion of the building official, by reason of the emission of odor, vapor, smoke, gas or noise. (Ord. 1252, 3-23-1999; amd. 2010 Code)

No building or structure shall hereafter be erected or structurally altered to exceed a height of six (6) stories or seventy five feet (75'), except communications towers and energy windmills. (Ord. 1252, 3-23-1999; amd. 2010 Code)

   A.   Front Yard: No front yard shall be required when all of the frontage on one side of the street between intersecting streets, a public area, or a railroad right of way is located in an M-3 manufacturing district. Where the frontage on one side of a street between two (2) intersecting streets is located partially in an M-3 district and partially in some other use district, the yard requirements from the other use district shall apply to the M-3 district. (Ord. 1252, 3-23-1999)

   B.   Side Yard: Same as required in the M-1 manufacturing district.

   C.   Rear Yard: Same as required in the M-1 manufacturing district. (Ord. 1252, 3-23-1999; amd. 2010 Code)

The following requirements shall apply:

   A.   Noise: The sound pressure levels shall be the same as those permitted in the M-2 manufacturing district.

   B.   Smoke And Particulate Matter: The emission of smoke or dust in an amount sufficient to create a general nuisance to occupants of adjoining properties or to the occupants in the general area wherein the use is located shall be prohibited.

   C.   Odors: No odors shall be emitted by any use permitted in this district in such quantities as to be readily detected by an average observer at any point on the boundary line of the nearest residential or business district.

   D.   Noxious Gases: Processes and operation of permitted uses capable of dispersing gases or toxic particulates into the atmosphere must be hooded or otherwise suitably enclosed. The emission of such toxic gases or particulate matter shall be from a stack not less than twenty five feet (25') in height.

   E.   Glare And Heat: Operations producing intense light or heat, when adjacent to a residential or business district, shall be performed within an enclosed building and not be visible beyond the boundary separating the subject premises from any adjoining residential or business district.

   F.   Vibrations: There shall be no uses which create heavy, earth shaking vibrations which are noticeable at any district boundaries separating residential and business uses from an M-3 manufacturing district. (Ord. 1252, 3-23-1999)