The airport district is devoted to those nonresidential land uses most directly associated with aviation operations. Allowed uses must adhere to the performance standards listed below. Adherence to these standards will be determined by the airport manager. This determination will be based upon a description of the uses of the land, and of any proposed buildings or structures. The airport manager shall approve all proposed uses within the airport district.
(Ord. 834, 2022)
The following requirements are applied in conjunction with the airport overlay restrictions itemized in Chapter 18.25 WMC, as well as those requirements specified by the Federal Aviation Administration:
(a) 
Fencing. A perimeter fence at least 60 inches in height shall be erected to surround the aviation zone or aviation facility, whichever is smaller.
(b) 
Roads. No new road or trail may be closer than 1,200 feet from the end of any runway as projected from the end of the runway if extended in a straight line except those necessary for aviation facility operations.
(c) 
Interference. Uses may not interfere with airport operations, nor interfere with aerial approaches.
(Ord. 834, 2022)
(a) 
Accessory Outside Storage. Accessory outside storage shall not exceed 10 percent of the building area.
(b) 
No outdoor storage of derelict vehicles, equipment, recreational vehicles, etc.
(Ord. 834, 2022)
Aviation related manufacturing, distribution, maintenance and/or repair, and storage uses that meet the following performance standards as determined by the airport manager shall be allowed in the airport district, provided:
(a) 
The activity does not involve the generation or storage of animal, vegetable, or other wastes that attract insects, rodents, or birds, or otherwise create a hazard to aircraft operations;
(b) 
The activity does not emit smoke, fly ash, dust, vapor, gases, or other forms of air pollution that would interfere with the safe operation of aircraft, or that may conflict with present or planned operations of the airport;
(c) 
The activity does not involve water impoundments, solid waste disposal, or other uses which attract birds or other animal species that may present a hazard to aircraft operations;
(d) 
The activity does not emit glaring light or employ highly reflective surfaces that interfere with a pilot's ability to locate runways or landing pads;
(e) 
The activity does not create electronic interference with communications among aviators and ground control personnel; and
(f) 
Accessory storage outside the airport boundary shall be enclosed and concealed by a minimum six-foot-high closed fence that prevents views of the interior. Screen fencing shall be properly maintained at all times. Fencing material shall be approved in advance by the building inspector. Accessory outside storage shall not exceed the height of the fence, except for operable vehicles, trailers, and other equipment designed to be towed or lifted as a single component.
(Ord. 834, 2022)
All uses not specifically permitted or determined by the airport manager or to be permitted are excluded from the airport district.
(Ord. 834, 2022)
(a) 
Landscaping. Any part of a lot not used for structures, off-street parking, loading and maneuvering areas, drives and pedestrian walks, and/or storage shall be landscaped with vegetative or nonvegetative materials, all of which shall be properly maintained at all times.
(b) 
Signs. The provisions of Chapter 18.90 WMC shall apply.
(c) 
Off-Street Parking. The provisions of Chapter 18.85 WMC shall apply.
(d) 
Setback requirements shall be as follows:
(1) 
Next to residential district (R, RH, MHP, MHS): 150 feet (45.7 meters); a lesser setback is allowable if audio and visual screening satisfactory to the planning commission is installed.
(2) 
Front yard: 40 feet (12.2 meters).
(3) 
Side yard: 25 feet (7.6 meters).
(4) 
Rear yard: 25 feet (7.6 meters).
(5) 
Adjacent to interstate rights-of-way: 10 feet (three meters).
(6) 
Setback requirements may be reduced up to 100 percent upon recommendation from the airport advisory board and approval from the building inspector. Reductions shall only apply to lots and parcels located within the designated airport boundary.
(Ord. 834, 2022)