23.60A.928

"Native vegetation" means a species that has occurred within the City limits of Seattle since the 18th century AD based on the science and technical information requirements described in WAC 173-26-201(2)(a) or best professional judgment. "Natural area" means an area that is predominately vegetated with native or wild-growing vegetation. "Navigational aid" means a structure used to guide or position ships and boats or to warn of navigational hazards, including but not limited to buoys, beacons, and light towers. "No net loss of ecological functions" means no degradation to habitat, including the habitat forming processes, after project impacts and mitigation for the project impacts occur. "Non-motorized boat landing area" means an area designed to allow vessels without motors to land on dry land and is not designed to include a launching area for non-motorized vessels. "Non-native aquatic species" means species for which Seattle is not within their natural range or within their natural dispersion area or species that have been brought to Seattle from another region, state, or country. "Non-structural stabilization." See "Shoreline stabilization." "Nonwater-oriented uses" means those uses that are not water-dependent, water-related, or water-enjoyment. "Normal and routine pruning and maintenance" means practices that are necessary to maintain existing pathways and landscaping, ensure the health of existing vegetation, or achieve limited pruning to allow windowing, reduce tree mass or redirect tree growth. Removal of trees and non-invasive vegetation is never considered normal and routine maintenance. Pruning actions must conform to the ANSI A300 standards outlined in The American National Standard for Tree Care Operations - Tree, Shrub and Other Woody Plant Maintenance - Standard Practices. "Normal appurtenance" means structures usually related to a primary structure or use, including garages; decks; driveways; utilities; septic tanks, and grading that does not exceed 250 cubic yards and that does not involve placement of fill in any wetland or waterward of the ordinary high water mark. "Noxious weed" means weeds listed by the King County Noxious Weed Control Board. "NPDES" means National Pollutant Discharge Elimination System. (Ord. 124750 , § 70, 2015; Ord. 124105 , § 3, 2013.)