The purpose of the M-1 light industrial zone is to provide appropriately located areas for the establishment of light industrial plants and related activities, and to promote the concentration of such uses in a manner which will foster mutually beneficial relationships with each other, as well as with the areas of the city zoned for heavy industrial development. The regulation of uses and standards of development set forth for the M-1 zone are those deemed necessary to provide the proper environment for the efficient and desirable use of light industrial land, and to provide the proper safeguards to protect nearby residential, commercial and public uses. (Ord. 1000 § 28.00, 1955)

In the M-1 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 be used, and buildings and structures shall hereafter be erected, altered or enlarged only for the following uses, set out in sections 18.108.030 through 18.108.050 of this chapter. (Ord. 1000 § 28.10, 1955)

In the M-1 zone, principal permitted uses shall be as follows:

   A.   Uses permitted in the M-P, planned industrial district.

   B.   Accessory uses:

      Commercial sales and service incidental to a principal permitted use.

      Employee recreational facilities and play areas.

      Storage buildings incidental to a permitted use.

      Superintendent or caretaker dwelling. One dwelling unit on the same parcel of land as a permitted use needing continual supervision, to be occupied exclusively by a superintendent or a caretaker and his family.

      Other accessory uses and buildings customarily appurtenant to a permitted use.

   C.   Manufacturing:

      Manufacture and assembly of electrical equipment and supplies, such as coils, condensers, lamps, switches, wire and cable assembly.

      Manufacture of ceramic products, such as pottery, figurines and small glazed tile, utilizing only previously pulverized clay, and provided that kilns are fired only by electricity or gas.

      Manufacture of cutlery, hardware, hand tools and kitchen utensils.

      Manufacture, processing or treatment of products other than those which may be obnoxious or offensive by reason of emission of odor, dust, smoke, gas, noise, vibration or hazard.

      Manufacturing, assembling, compounding, packaging and processing of articles or products from the following previously prepared materials: asbestos, bristles, bone, feathers, hair, horns, leather, metal, paints (excluding any boiling process), paper, textiles.

      Manufacturing, compounding, processing, canning or packaging of products such as bakery goods, candy and soft drinks, dairy products, food products (excluding fish and meat products, sauerkraut, vinegar, yeast, and the rendering or refining of fats and oils).

      Mattress manufacture, repair, rebuildings and recovering.

   D.   Other uses:

      Agricultural supplies and equipment, sales and service.

      Agricultural uses, but excluding dairies, stockyards, slaughter of animals, and manufacture of fertilizer.

      Automobile accessory and parts sales.

      Automobile repair services; no open service bays shall face a public street, or they shall be screened.

      Automobile sales, new and used.

      Barbershops.

      Boat, mobilehome and camper sales and services.

      Building material and hardware sales.

      Catering services.

      Cleaning and dyeing plants, laundries, linen and towel service.

      Creameries.

      Electric distribution substations, electric transmission substations, and public utility buildings and service yards.

      Furniture upholstery.

      Ice manufacture and storage, frozen food lockers, and cold storage plants.

      Lumberyards (no planing mills).

   E.   Machine shops and such uses as the following:

      Anodizing shops.

      Blacksmith shops.

      Cabinet or carpenter shops.

      Die and pattern making shops.

      Electroplating shops.

      Grinding shops.

      Metal engraving shops.

      Metal finishing and plating shops.

      Polishing shops.

      Sheet metal shops.

      Tinsmith shops.

      Welding shops.

      Parking lots, commercial.

      Petroleum bulk plants.

      Plumbing, heating or electrical shops.

      Real estate, business and professional offices.

      Repair and fix-it shops.

      Repair garages, body and fender works and auto painting, providing all work is conducted within a completely enclosed structure.

      Retreading and recapping of tires.

      Service stations.

      Sign painters.

      Taxidermy shops.

      Tree surgeons.

      Volume sales outlets, such as furniture, appliances and carpeting.

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

      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.

      Wholesaling. (Ord. 2955, 2023: Ord. 2333 § 39, 1997: Ord. 1000 § 28.10(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 this chapter, in conformity with the intent and purpose of the M-1 zone, and not more obnoxious or detrimental to the public health, safety and welfare, or to other uses permitted in this zone. (Ord. 1000 § 28.10(B), 1955)

The following uses may be permitted in the M-1 zone subject to approval of a conditional use permit:

Animal and pet hospitals, kennels and animal pounds.

Automobile wash, mechanical or self-service.

Building materials storage yards.

Business, technical, trade or professional schools.

Commercial recreation such as bowling lanes and skating rinks.

Contractors' storage yards.

Equipment rentals.

Feed and fuel yards.

Motels.

Outdoor vehicle storage and holding lot, with no dismantling or wrecking permitted.

Restaurants.

Warehouses and logistics distribution centers, in accordance with chapter 18.156 of this title. (Ord. 2955, 2023: Ord. 1000 § 28.10(C), 1955)

The following property development standards, set out in sections 18.108.080 through 18.108.190 of this chapter shall apply to all land and buildings in the M-1 zone. (Ord. 1000 § 28.20, 1955)

Each lot in the M-1 zone shall have a minimum area of five thousand (5,000) square feet. (Ord. 1000 § 28.20(A), 1955)

In the M-1 zone:

   A.   Each lot shall have a minimum width of fifty feet (50'), except that where adjacent to a residential zone, school or park, the width shall be not less than seventy feet (70').

   B.   Each lot shall have a minimum depth of one hundred feet (100'). (Ord. 1000 § 28.20(B), 1955)

Buildings and structures in the M-1 zone shall not exceed fifty feet (50') in height; provided, however, that nonnuclear electric generating stations shall not exceed one hundred feet (100') in height, and appurtenant cooling towers and emission stacks for nonnuclear electric generating stations shall not exceed two hundred twenty five feet (225') in height. (Ord. 2436 § 1, 2000: Ord. 1000 § 28.20(C), 1955)

In the M-1 zone:

   A.   Front Yard: Each lot shall have a front yard of not less than ten feet (10'), extending across the full width of the lot, except where adjacent to a major or secondary highway, and except where adjacent or across the street from a residential zone, school or park, in which case the front yard shall be not less than twenty five feet (25'). Such yards may be used for parking in accordance with the provisions of sections 18.164.140 through 18.164.320 of this title.

   B.   Side And Rear Yards: None required, except where adjoining a residential district, the side yard shall be ten feet (10') and the rear yard shall be a minimum of twenty five feet (25'). Said yard may be used for parking, loading and accessways. (Ord. 1000 § 28.20(D), 1955)

In the M-1 zone:

   A.   Required Walls: On those sides of property in the M-1 zone which abut a residential zone, school or park, a solid masonry wall not less than six feet (6') in height shall be built and maintained along the property lines adjoining such residential zone, school or park, except that the wall shall be three feet (3') in height where it adjoins the front yard setback area, such wall to be installed at the time the property is used for M-1 purposes.

   B.   Required Landscaping: A minimum of ten feet (10') of the front yard area adjacent to the street shall be landscaped when the front yard area adjoins a residential district, a major or secondary highway, or a freeway frontage road. Landscaping shall be provided and maintained in accordance with the standards established in sections 18.168.110 through 18.168.190 of this title. (Ord. 1000 § 28.20(E), 1955)

All lots in the M-1 zone shall have a minimum of fifty feet (50') of access on a dedicated and improved street. (Ord. 1000 § 28.20(F), 1955)

Lot area coverage by buildings or structures in the M-1 zone shall not exceed fifty percent (50%) of the total lot area. (Ord. 1000 § 28.20(G), 1955)

For off street parking in the M-1 zone, the provisions of section 18.164.240 of this title shall apply. (Ord. 1000 § 28.20(H), 1955)

For off street loading in the M-1 zone, the provisions of sections 18.164.330 and 18.164.340 of this title shall apply. (Ord. 1000 § 28.20(I), 1955)

For signs in the M-1 zone, the provisions of the Redlands sign code shall apply. In addition, the maximum area of any sign facing a residential zone shall be seventy five (75) square feet. (Ord. 1000 § 28.20(J), 1955)

In the M-1 zone:

   A.   Outdoor storage and activities associated with permitted uses shall be enclosed by building walls, a solid masonry wall, solid fencing, or uniformly compact evergreen hedge, all continuously maintained and not less than six feet (6') in height, located no closer to any street than the front setback line. Side and rear property lines shall be similarly treated when the subject areas are viewable from any street.

   B.   Items stored within one hundred feet (100') of a dedicated street or residential zone shall not be stacked higher than six feet (6').

   C.   The storage of combustible materials shall be not less than twenty feet (20') from any interior lot line, and a roadway shall be provided, graded, surfaced and maintained from the street to the rear of the property to permit free access of firetrucks at any time.

   D.   No materials or wastes shall be deposited upon a subject lot in such form or manner that they may be transferred off the lot by natural causes or forces. All waste materials shall be stored in an enclosed area and shall be accessible to service vehicles.

   E.   Wastes which might cause fumes or dust, or which constitute a fire hazard, or which may be edible by or otherwise be attractive to rodents or insects shall be stored only in closed containers in required enclosures. (Ord. 1000 § 28.20(K), 1955)

In the M-1 zone, buildings or structures having exterior walls of sheet metal shall not be located closer than one hundred fifty feet (150') from the property line along any freeway, major or secondary highway, or closer than one hundred feet (100') from the property line along any other dedicated street, except that such buildings or structures may be located closer to the street if any of the following conditions prevail:

   A.   The sheet metal comprises less than twenty five percent (25%) of the exterior wall area of the building or structure; or

   B.   The sheet metal consists of panels with stainless steel, baked enamel or similar finish; or

   C.   The building or structure is concealed from view from the public street by walls, fences, landscaping or other buildings or structures. (Ord. 1000 § 28.20(L), 1955)

All uses in the M-1 zone shall comply with the following limitations or performance standards set out in sections 18.108.210 through 18.108.270 of this chapter. (Ord. 1000 § 28.30, 1955)

In the M-1 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 § 28.30(A), 1955)

In the M-1 zone, 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" means electromagnetic energy at any frequency in the radio spectrum between ten (10) kilocycles and three million (3,000,000) megacycles. (Ord. 1000 § 28.30(B), 1955)

In the M-1 zone, the maximum sound pressure level radiated by any use or facility, when measured at an abutting residential, commercial or more restricted industrial zone boundary line, shall not exceed the value listed in section 18.104.230 of this title. (Ord. 1000 § 28.30(C), 1955)

Every use in the M-1 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 on which the use is located. (Ord. 1000 § 28.30(D), 1955)

In the M-1 zone, smoke emission shall be controlled in accordance with standards and regulations established by the air pollution control board. (Ord. 1000 § 28.30(E), 1955)

In the M-1 zone:

   A.   Every use shall be so operated that it does not emit dust, heat or glare in such quantities or degree 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 § 28.30(F), 1955)

In the M-1 zone:

   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 § 28.30(G), 1955)