§ 151.27  INDUSTRIAL.
   (A)   Purpose.  The purpose of the I Industrial District is to provide for industrial development outside of the other districts authorized by this chapter.  Development within the district shall be regulated through the performance standards outlined in § 151.30 of this chapter to promote sensitive site design and to mitigate external site impacts.
   (B)   Permitted uses and structures.  Within the I District no structure or land may be used except for the following uses occurring within an enclosed building:
      (1)   Warehouse
      (2)   Storage
      (3)   Manufacturing
      (4)   Processing
      (5)   Office
      (6)   Wholesale
      (7)   Research
      (8)   Government buildings
      (9)   Other such industrial uses which in the determination of the City Council and as formally documented will be compatible and will not be detrimental to uses allowed in this or contiguous districts.
   (C)   Accessory structures and uses. Within the I District the following accessory uses are permitted provided they are subordinate to and associated with a permitted use:
      (1)   Living quarters for security personnel, provided they are located within the principal structure;
      (2)   Overnight outside storage of vehicles, provided the vehicles are associated with the business and are screened from view from residential properties or public views;
      (3)   Outside storage, including fuel storage, provided it is screened from general public view;
      (4)   Retail or service uses not exceeding 25% of the gross floor area of the principal structure;
      (5)   Other uses customarily associated with but subordinate to a permitted use, as determined by the city.
      (6)   Solar panels and equipment, satellite dishes and-antennas.
   (D)   Conditional uses. Within the I District no land or structure may be used for the following except by conditional use permit and in conformance with the performance standards contained in § 151.30 of this ordinance:
      (1)   Retail, or service uses occupying between 25% and 50% of the gross area of the principal structure.
      (2)   Wind energy conversion systems or windmills.
   (E)   District standards. No building or land in the I District shall be used except in conformance with the following:
      (1)   Building height.  Maximum of 45 feet or three stories, whichever is less;
      (2)   Front yard setback. Minimum of 35 feet from local and neighborhood collector streets as identified in the comprehensive plan, if any, or the zoning map if no comprehensive plan is in existence; or a minimum of 50 feet from railroad lines and from major collector or arterial roadways as designated in the comprehensive plan if any, or the zoning map if no comprehensive plan is in existence;
      (3)   Side and rear yard setbacks.  Minimum setbacks shall be in accordance with the following when measured from land designated accordingly in the comprehensive plan if any, or the zoning map if no comprehensive plan is in existence:
         (a)   70 feet from R-1 and R-2 residential uses;
         (b)   30 feet from C-1 and C-2 commercial business uses; and
         (c)   20 feet from I District uses.
      (4)   Lot coverage.  Maximum lot coverage shall be 85% and shall be calculated to include building footprints; parking areas; driveways; loading, storage and trash areas and other areas covered by any impervious surface;
      (5)   Access: from a collector or arterial roadway as designated in the comprehensive plan, if any, or a street specifically designed to accommodate industrial traffic;
      (6)   Trash enclosures or accessory buildings not to exceed 600 square feet in size shall be located behind the front building line of the principal building and not in any required set back;
      (7)   Parking shall be regulated pursuant to §§ 151.35 through 151.39; and
      (8)   Performance standards shall be regulated pursuant to § 151.30.
   (F)   Conditional use permit standards for the Industrial District.
      (1)   Purpose. It is the intent of the city in establishing general and specific criteria for conditional uses that such uses be subject to careful evaluation to ensure that their location, size and design are consistent with the standards, purposes and procedures of this chapter and the comprehensive plan. The Planning Commission, if any, may recommend and the City Council may impose conditions on such uses in order to ensure compliance or to effect the purpose of this chapter.
      (2)   General standards. No conditional use permit shall be granted unless the City Council determines that all of the following standards will be met:
         (a)   The use is consistent with the intent of this chapter;
         (b)   The use is consistent with the goals, policies and objectives of the comprehensive plan, if any;
         (c)   The use does not have an undue adverse impact on governmental facilities, utilities, services or existing or proposed improvements;
         (d)   The use is in compliance with the performance standards specified in § 151.30, of this chapter; and
         (e)   The use does not have an undue adverse impact on the public health, safety or welfare.
      (3)   In addition to the standards specified in division (2), no conditional use permit shall be granted unless the City Council determines that each of the following specific standards will be met.
         (a)   Retail or service uses occupying between 25% and 50% of the gross area of the principal structure:
            1.   Shall be no exterior modifications to the building;
            2.   Shall have no outside storage or display and no accessory structures for retail sales purposes; and
            3.   Shall have sufficient parking to accommodate the additional retail traffic.
         (b)   Wind energy conversion systems or windmills.
            1.   Set back from the nearest property line a distance equal to the height of the tower plus one-half the diameter of the rotor;
            2.   Certified by a professional engineer as being of a design adequate for the atmospheric conditions of the area:
            3.   Equipped with over-speed or similar controls designed to prevent disintegration of the rotor in high winds;
            4.   Compliance with all building and electrical code requirements of the city, the noise regulations of the Minnesota Pollution Control Agency and the rules and regulations of the Federal Communications Commission and Federal Aviation Administration;
            5.   If the WECS has not been operated for a period of one year or fails to meet the conditions of this chapter, the City Council may order it dismantled and the site restored to its original condition; and
            6.   If the owner or person responsible for the WECS does not maintain it or comply with all requirements of this chapter, the city may take such steps as are necessary to achieve compliance. The cost of such work, including administrative costs, shall be a lien against the property and may be collected as a special assessment. The city may sell salvaged and valuable materials at public auction on ten days' notice.