Subd. 1. Fire hazards. Any activity involving the use or storage of flammable or explosive materials shall be protected by adequate firefighting and fire-prevention equipment and by such safety devices as are normally used in the handling of any such material. The hazards shall be kept removed from adjacent activities from a distance that is compatible with the potential danger involved and shall be reviewed and approved by the Fire Chief.
   Subd. 2. Vibration. No vibration shall be permitted that is discernible without instruments on any adjoining lot or property. The standard shall not apply to vibrations created during the process of construction.
   Subd. 3. Air pollution. No pollution of air by fly-ash, dust, vapors, odors, smoke or other substances shall be permitted which are harmful to health, animals, vegetation or other property, or which can cause excessive soiling. For the purpose of this chapter, the regulations and standards adopted by the state's Pollution Control Agency shall apply.
   Subd. 4. Refuse. All waste material, debris, refuse or garbage shall be kept in an enclosed building or property contained in a closed container designed for such purposes. The owner of vacant land shall be responsible of keeping the land free of refuse.
   Subd. 5. Dwelling units and structures. All structures intended for the purpose of serving as a dwelling (with the exception of those categorized as a manufactured home under M.S. § 327.31, as it may be amended from time to time) shall meet the following standards.
      A. All residential dwellings shall be a minimum of 16 feet wide (measured at its maximum width).
      B. All dwellings shall be placed on a permanent foundation which complies with all standards and specifications of the Minnesota Building Code. The foundation shall be solid extending the entire length and width of the dwelling.
      C. New porches and decks shall be required to meet all setbacks. Pre-existing porches and decks may be re-constructed as long as they are not enlarged or expanded. Stoops and patios are not required to meet structural setbacks. No porch, deck, stoop or patio shall be placed on any recorded easements.
      D. All residential structures shall be required to have sewer and water which meets State Health Code standards and this code of ordinances.
   Subd. 6. Non-residential uses. Where a use other than residential abuts land zoned R-1, which is developed with a one- or two-family dwelling, the non-residential use shall be screened from the R-1 land to minimize light, sound, and visual trespass of the use. Elements to be screened include, but are not limited to, vehicle headlights, overhead lights, wall mounted lights, light from signs, and outdoor activity. Screening may include a mix of landscaping and fencing to include year-round screening.
   Subd. 7. Fences. See City Code Chapter 4. All properties within the I-1 Limited Industrial District, I-2 Industrial District, and I-3 Business/Industrial Park District as shall meet the following standards.
      A. All materials, supplies, merchandise or other similar material not on display for use, direct sale, rental or lease to the ultimate consumer shall be enclosed in the confines of an opaque wall or fence not less than six feet in height in the side or rear yards.
      B. Outdoor storage of material shall be screened with suitable materials to maintain 100% opacity when viewed from adjacent property lines or from a public street or alley.
   Subd. 8. Temporary structures. All temporary structures as shall meet the following standards.
      A. No temporary structure shall be placed within the required front yard (setback) of any zoning district.
      B. Temporary structures must meet all setback requirements for the zoning district in which they are located.
   Subd. 9. Lighting.
      A. Lighting level should be the low possible for the purpose intended.
      B. All lighting installations shall be designed and installed with illumination to be at a cut off of 90 degrees or less, except as in exceptions in Subd. 9.F. below.
      C. Maximum lamp wattage for commercial lighting shall be 250 watts.
      D. Maximum lamp wattage for residential lighting shall be 100 watts incandescent, 26 watts compact fluorescent.
      E. Light trespass shall be controlled with the proper choice of luminaires and optics.
      F. The following are excepted from the above lighting standards:
         1. Lighting in swimming pools and other water features governed by Art. 680 of the National Electrical Code;
         2. Exit signs and other illumination required by Building Codes;
         3. Lighting for stairs and ramps, as required by the Building Code;
         4. Signs are regulated by Ch. 4 of this code of ordinances, but all signs are recommended to be fully shielded;
         5. Holiday and temporary lighting;
         6. Athletic field lighting is allowed when steps have been taken to minimize glare and light trespass and utilize sensible curfews; and
         7. Low-voltage landscape lighting, but such lighting be shielded in such a way as to eliminate glare and light trespass.
(Ord. 699, passed 1-18-22)