10-10-4: PERFORMANCE STANDARDS:
   A.   Limitations On Height: No building or other structure erected in any land use district shall have a height greater than that specified in section 10-2-4 of this title and within each zoning category, except that the council, by special use permit, may authorize a greater height to the extent that the council determines that: 1) provisions have been made for protection from fire hazards and against aviation accidents, 2) consideration has been given to the protection of view and to the character of the neighborhood, 3) proper provision has been made for light and air, and 4) such greater height will better promote the protection of the environment in the area. The height limitations do not apply to spires, belfries, cupolas, antennas, water tanks, ventilators, chimneys or other appurtenances usually required to be placed above the roof level and not intended for human occupancy except where the height of such structures will constitute a hazard to the safe landing and takeoff of aircraft at an established airport.
   B.   Provisions For Unique Land Uses: Certain unique land uses pose special problems that may have detrimental influence on surrounding land uses. The following performance standards for such unique land uses shall be adhered to in addition to all other provisions of this title:
      1.   Bulk Storage Of Flammable Liquids And Gases, Aboveground And For Resale:
         a.   Will be located at least three hundred feet (300') from a residential zone, a residence, motel, hotel, except for an owner's residence or other dwellings;
         b.   Will be erected subject to the approval of the commission and council; and
         c.   Will have suitable loading and unloading spaces and off street parking facilities subject to the approval of the commission and council.
      2.   Chemicals, Pesticide And Fertilizer Storage And Manufacture:
         a.   Will have adequate fire protection, storage area, handling and disposal as approved by the commission and council.
      3.   Contractor's Yard: That portion of a premises devoted to the storage and maintenance of construction equipment and materials:
         a.   Will be limited to storage, maintenance and processing incidental to contracting work. There shall be no general industrial or commercial uses;
         b.   Will be completed by an eight foot (8') sight obscuring fence.
      4.   Drive-In Restaurant:
         a.   Will be enclosed on the property line with landscaping and fencing, except for ingress and egress, to prevent trash from moving onto other properties;
         b.   Will have a six foot (6') high sight obscuring fence along the property lines that adjoin a residence;
         c.   Will provide for adequate trash receptacles; and
         d.   Will avert the direction of night lighting toward any residence.
      5.   Gravel Pits, Rock Quarries, Sand And Clay Pits And Other Natural Resources Of Commercial Value Not Under State Or Federal Supervision And Control (Only Within Area Of City Impact Per City/County Agreement):
         a.   The extent and method of rehabilitation shall be determined in advance of issuing a zoning permit with due consideration given to what is suitable and compatible with the surrounding area;
         b.   Upon depletion of the area, all temporary buildings and structures, except property line fences and structures for the loading, measuring or weighing of salable material in storage, shall be entirely removed from the property.
      6.   Home Occupation:
         a.   Not more than one person other than members of the family residing on the premises shall be engaged in such occupation;
         b.   The use of the dwelling unit or an exterior building for the home occupation shall be clearly incidental and subordinate to its use for residential purposes by its occupants, and as area equivalent to not more than fifty percent (50%) of floor area of the dwelling unit shall be used in the conduct of the home occupation;
         c.   There shall be no change in the outside appearance of the building or premises, or other visible evidence of the conduct of such home occupation;
         d.   Total residential and business motor vehicle travel to and from the dwelling shall not exceed an average of fifteen (15) round trips per day during any five (5) day period. Said occupation shall require no additional parking space;
         e.   No equipment or process shall be used in such home occupation that creates noise, vibration, glare, fumes, odors or electrical interference detectable to the normal senses off the lot, if the occupation is conducted in a single-family residence. In the case of electrical interference, no equipment or process shall be used which creates visual or audible interferences in any radio or television receivers off the premises, or causes fluctuation in line voltage off the premises;
         f.   The occupation shall be conducted entirely within a structure on the property.
      7.   Manufactured, Mobile Home And Recreational Vehicle Parks: The following improvements shall be provided in all manufactured/mobile home and recreational vehicle parks:
         a.   Site Selection:
            (1) Topography: The topography must be favorable to good site drainage, minimum grading, manufactured/mobile home/recreational vehicle placement, and ease of maintenance.
            (2) Availability Of Utilities: The site must be readily accessible to public utilities, including water, sewerage, and electricity.
            (3) Necessary Land Area: The area of the manufactured home/recreational vehicle park must be sufficient in size to accommodate: a) the number of manufactured/mobile home/recreational vehicle spaces desired; b) roads and parking areas for motor vehicles; c) service areas, buildings and playgrounds.
         b.   Site Improvements:
            (1) The physical improvements of the site must be arranged to provide: a) a convenient means of pedestrian and vehicular access to each manufactured/mobile home/recreational vehicle space, parking areas, and accessory buildings; b) an adequate supply of potable water; c) a safe method of sewage disposal; d) electrical service for lighting and power; and e) diversion of surface water away from buildings, manufactured/mobile home/recreational vehicle spaces, service and recreational areas.
         c.   Site Planning: A plan of the proposed manufactured home park must be developed for approval of the city indicating the layout of manufactured/mobile home/recreational vehicle spaces, roads, walks, service buildings, service areas, utilities, and necessary grading.
         Determination must be made in the initial planning stage on the number of manufactured/mobile homes/recreational vehicles to be accommodated.
            (1) Manufactured/Mobile Home/Recreational Vehicle Space Sizes: Each manufactured/mobile home space must be not less than one thousand two hundred fifty (1,250) square feet in area and should be at least twenty five feet (25') wide. Recreational vehicle spaces may be smaller but must accommodate the average recreational vehicle size.
            (2) Spacing Of Manufactured/Mobile Homes/Recreational Vehicles: The minimum spacing between manufactured/mobile homes/recreational vehicles and between manufactured/mobile homes and buildings must be:
               (A) Side to side spacing: Fifteen feet (15');
               (B) End to end spacing: Ten feet (10') from the manufactured home park property line.
            (3) Roads, Walks And Parking Areas:
               (A) General Circulation: Safety and convenience must be a major consideration in the layout of roads, walks, and parking areas within the manufactured home park. All roads must be continuous.
               (B) Servicing: Suitable vehicular access for firefighting equipment, delivery of fuel, removal of garbage and refuse, and for other necessary services must be provided.
               (C) Width Of Roads And Parking Areas: Main access roads, excluding parking, must be two (2) lane and at least twenty four feet (24') wide.
               (D) Parking Area: The same number of motor vehicle parking spaces must be provided as the number of manufactured spaces. These must be provided in special parking areas.
               (E) Walks: The manufactured home park walk system must include a walk from the entrance of each manufactured/mobile home to service facilities.
               (F) Width Of Walks:
                  (i) Public walks: Minimum four feet (4').
                  (ii) Entrance walks (from public walk to manufactured/recreational vehicle door): Two feet (2').
            (4) Service Buildings: Each manufactured home/recreational vehicle park that is planning on serving recreational vehicles must be provided with one or more service buildings containing the requisite number of plumbing fixtures and other service equipment. The service buildings must conform in general to the following requirements:
               (A) Location: The building should be located not more than two hundred feet (200') from any recreational vehicle space.
               (B) Construction: The materials and methods used in the construction of service buildings must conform to local building codes for buildings of this nature. It must have an interior finish which is moisture resistant and can be easily cleaned. All rooms of service buildings must be ventilated and all exterior openings provided with screens.
            (5) Facilities (Recreational Vehicle Park Only):
               (A) Toilet Rooms: Separate men's and women's toilet rooms must be provided and distinctly marked. These rooms must be separated by a sound resistant wall. A vestibule or screen wall must be provided to prevent direct view into the toilet rooms when exterior doors are open.
               (B) Plumbing Fixtures: Every recreational vehicle park must provide adequate toilet and laundry facilities. In no instances should there be less than one laundry unit (laundry or washing machine); one water closet, one lavatory and one shower for women; and one water closet, one lavatory and one shower for men. A slop water closet (water closet with seat removed) must be provided in each service building. The slop water closet should be in a separate room of the service building with a single direct opening to the outside.
The facilities listed above will accommodate the planned number of recreational vehicle spaces. One water closet must be provided for each sex for every ten (10) additional recreational vehicles. (Urinals for men may be substituted for 1/3 of these water closets.)
One lavatory must be provided for each sex for every ten (10) additional recreational vehicles; and one shower or bathtub for each sex for every twenty (20) additional recreational vehicles. A laundry unit must be provided for every twenty (20) additional spaces.
            (6) Fire Prevention:
               (A) The court area shall be subject to the rules and regulations of the fire prevention authority.
            (7) Regulations:
               (A) No permanent additions of any kind shall be built onto, nor become a part of, any manufactured/mobile home/recreational vehicle. Skirting of coaches is permissible, but such skirting shall not permanently attach the coach to the ground, provide a harborage for rodents, or create a fire hazard. The wheels of a coach shall not be removed, except temporarily when necessary for repairs. Jacks or stabilizers may be placed under the frame of the coach to prevent movement on the springs while the coach is parked and occupied. No owner or person in charge of a dog, cat, or other pet animal shall permit it to run at large, or to commit any nuisance within the limits of any manufactured home park.
      8.   Schools/Development Around Schools: As schools are placed or planned within areas around the county, considerations for the following will be planned for and included in any development applications:
         a.   Safe access routes to school for children.
         b.   Coordinated recreation areas in or around the school areas.
         c.   Open space areas preserved in and around the school areas.
         d.   Provisions for sidewalks, bike paths, greenways and other alternate transportation routes.
         e.   Bus turnout and transportation routes for buses.
         f.   Other features and amenities to ensure the safety of the schoolchildren.
      9.   Wrecking Yards/Junkyards:
         a.   No wrecking or junk yards are allowed within the Challis city limits. (Ord. 499, 4-16-2009)