Particularly hazardous land uses should be restricted in all designated airport overlay zones. These include those which would cause smoke, water vapor, or light interference impeding the pilot's ability to see the airfield. Other uses which cause electrical interference with aircraft navigational and communications equipment also should be prohibited in the airport vicinity. Other inappropriate uses include those which attract large numbers of birds. Examples include landfills and some types of food processing plants involving outdoor storage of grain and other raw materials or food by-products.
The California Airport Land Use Planning Handbook offers the descriptions of land uses which are considered hazardous and should be restricted within all airport safety zones. These land uses include:
1. Any use which would direct a steady light or flashing light of red, white, green, or amber colors associated with airport operations toward an aircraft engaged in an initial straight climb following takeoff or toward an aircraft engaged in a straight final approach toward a landing at the airport, other than an FAA approved navigational signal light or visual approach slope indicator;
2. Any use which would cause sunlight to be reflected toward an aircraft engaged in an initial straight climb following takeoff or toward an aircraft engaged in a straight final approach toward a landing at an airport;
3. Any use which would generate smoke or which would attract large concentrations of birds, or which may otherwise affect safe air navigation within this area;
4. Any use which would generate electrical interference that would be detrimental to the operation of aircraft and/or aircraft instrumentation; and
5. Any land use involving, as the primary activity, the manufacture, storage, or distribution of explosives or flammable or hazardous materials.
[Ord. No. 480, Section 6, 3/11/09.]