192.12 M-1 LIGHT INDUSTRIAL DISTRICT.
The M-1 District is intended and designed to provide areas of the City suitable for activities and uses of a light industrial nature. Such districts do not require the high standards of M-3 Districts but still require protection from the less restrictive uses permitted in the M-2 District. It is not intended that any new residential development be permitted in the M-1 District.
1.   Principal Permitted Uses. Only the following uses of structures or land shall be permitted in the M-1 District:
   A.   Any use permitted in the M-3 District.
   B.   Any use permitted in the C-2 District, except that no new residential or multiple dwelling uses shall be permitted, unless accessory to a permitted principal use.
   C.   Automobile assembly.
   D.   Bag, carpet, and rug cleaning, provided necessary equipment is installed and operated for the effective precipitation or recovery of dust.
   E.   Bakeries.
   F.   Welding or other metal-working shops.
   G.   Contractor’s equipment storage yard or plant, or rental of equipment commonly used by contractors, storage and sale of livestock feed (provided dust is effectively controlled), and storage yards for vehicles of a delivery or draying service.
   H.   Carting, express hauling or storage yards.
   I.   Circus, carnival or similar transient enterprise; provided, such structures or buildings shall be at least 200 feet from any R district.
   J.   Coal yard, coke yard or wood yard.
   K.   Concrete mixing, concrete products manufacture.
   L.   Cooperage works.
   M.   Creamery, bottling works, ice cream manufacturing (wholesale), ice manufacturing and cold storage plant.
   N.   Enameling, lacquering or japanning.
   O.   Foundry casting lightweight nonferrous metals or electric foundry not causing noxious fumes or odors.
   P.   Experimental, film or testing laboratories.
   Q.   Livery stable or riding academy.
   R.   Machine shop.
   S.   Manufacture of musical instruments and novelties.
   T.   Manufacture of pottery or other ceramic products, using only previously pulverized clay.
   U.   Manufacture or assembly of electrical appliances, instruments, and devices.
   V.   Manufacture and repair of electric signs, advertising structures, and sheet metal products, including heating and ventilating equipment.
   W.   Milk distributing station other than a retail business conducted on the premises.
   X.   Sawmill and planing mill, including manufacture of wood products not involving chemical treatment.
   Y.   The manufacturing, compounding, processing, packaging or treatment of cosmetics, pharmaceuticals and food products, except fish and meat products, cereals, sauerkraut, vinegar, yeast, stock feed, flour; and the rendering or refining of fats and oils.
   Z.   The manufacturing, compounding, assembling or treatment of articles or merchandise from previously prepared materials such as bone, cloth, cork, fiber, leather, paper, plastics, metals or stones, tobacco, wax, yarns and wood.
   AA.   Automobile body or fender repair shop, but not including automobile wrecking or used parts yards.
   BB.   Lumberyards and building materials sales yards.
   CC.   Vulcanizing, retreading and recapping of tires.
   DD.   Truck rental establishments.
   EE.   Warehousing and storage, retail or wholesale.
2.   Permitted Accessory Uses. Permitted accessory uses in the M-1 District are as follows:
   A.   Accessory uses customarily incidental to a permitted principal use.
3.   Prohibited Uses; Outdoor Storage Requirement.
   A.   No use shall be permitted to be established or maintained which by reason of its nature or manner of operation is or may become hazardous, noxious or offensive owing to the emission of odor, dust, smoke, cinders, gas, fumes, noise, vibrations, refuse matter or water-carried waste.
   B.   Outdoor storage of equipment not intended for over-the-road or rail use, supplies (or materials) intended for refabrication, waste materials, industrial by-products, or items intended for junk yards shall be so located and screened, fenced or landscaped to comply with a type “C” opaque screen as described in paragraph 194.02(3)(C) of this Zoning Ordinance to effectively prevent visibility of such storage from all adjoining property lines and street right-of-way lines.
   C.   In the event that the property owner and Department Director disagree regarding whether or not any site must be screened, the property owner may appeal to the Board of Adjustments in accordance with the provisions of Section 197.01(3) of this Zoning Ordinance.
4.   Area and Size Regulations. The following minimum requirements shall be observed in the M-1 District, subject to the height limitations in Section 191.11 and the modifications contained in Section 196.03 of this Zoning Ordinance:
   A.   Front Yard: 50 feet.
   B.   Side Yard: None required, except when adjacent to any Residential district or street right-of-way line, in which case – 50 feet.
   C.   Rear Yard: 40 feet. Where a railroad right-of-way line lies immediately adjacent to the rear of a lot, the rear yard requirements need not apply.
   D.   Maximum Height: 75 feet.
   E.   Maximum Number of Stories: 5 stories.
5.   Off-Street Parking and Loading. Spaces for off-street parking and loading shall be provided in accordance with the provisions in Section 194.01 of this Zoning Ordinance.