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Finally, Avigation Easement Dedication describes the avigation easement requirements for parcels located within Safety Zones 1, 2, 3.Safety Zone 1 consists of the two Rio Vista runways, together with immediately adjoining areas within the runway protection zones (RPZs). The dimensions of the RPZs are set in accordance with FAA criteria.Safety Zone 2 comprises the inner approach and departure areas immediately beyond and surrounding Safety Zone 1. Typically, residential uses are restricted, apart from infill within already developed areas. Non-residential uses that include agriculture, non-group recreational uses (that result in minimal concentrations of people), storage of low-hazard materials, low-intensity light industrial land uses, and auto, aircraft, and marine repair services are all normally allowed within this zone.Safety Zone 3 contains the areas where aircraft turn as they approach or depart the runway. Uses allowed in this safety zone include greenhouses, low-hazard materials storage, mini-storage, warehouses, light industrial uses, and vehicle repair services, as well as uses allowed in Safety Zone 2. Very low residential densities and low-intensity offices and commercial uses are permitted within this zone, while uses with higher concentrations of people and children are prohibited.Safety Zone 4 covers the outer approach and departure surfaces for the Airport and extends beyond Safety Zone 2. Normally, restaurants, retail, and industrial uses are allowed in this zone, as well as uses that are allowed in Safety Zone 3. Higher intensity retail uses and offices are to be avoided in this zone, while buildings and uses that result in larger assemblages of people and children are prohibited.Safety Zone 5 is the sideline zone that runs outside and parallel to Runways 15-33 and 7-25. Normally, all uses permitted in Zone 4 and common aviation-related activities are allowed, provided they satisfy FAA height and airspace protection criteria. Uses limited in Safety Zone 3 are also limited in Zone 5. All residential uses are to be prohibited unless they are airport related; and higher-intensity non-residential uses that result in higher assemblages of people, including children, are prohibited.Safety Zone 6 comprises the traffic pattern zone and Inner WHA Boundary for the Airport. This larger zone covers regular traffic patterns and entry routes to and exit routes from the Airport. The 55 dB CNEL contour is located within Safety Zone 6. While residential uses in this zone are only restricted in relation to noise and overflight impacts, no other prohibitions exist within this zone. 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