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4. Habitats of primary association;
<br /> 5. Plant associations of infrequent occurrence.
<br /> "Undisturbed,relatively"is defined in question H2.0 of the 2014 Washington State Wetland Rating System for
<br /> Western Washington.
<br /> "Unstable soils"means soils which by their physical nature are not suitable to support buildings, roads, utilities or
<br /> other manmade development related improvements,or which have the potential for slope failure,erosion,or
<br /> subsidence. Unstable soils include, but are not limited to,those areas defined as landslide hazard areas,erosion
<br /> hazard areas,and seismic hazard areas,or other soils which have been determined by the public works director or
<br /> the building official to be unsuitable for building foundations or structural support.
<br /> "Upper bank"means that portion of the topographic cross-section of a stream which extends from the break in
<br /> the general slope of the surrounding land to the ordinary high water mark.
<br /> "Wetland boundary" means,for the purposes of the calculation of the area of the wetland,the total extent of the
<br /> wetland, both on site and off site.
<br /> "Wetland class" means a description of vegetation habitat based on the predominant life forms that occupy a
<br /> particular layer of vegetation and possess an aerial coverage of thirty percent or greater of the entire wetland.The
<br /> basis for these descriptive classes is derived from the Wetlands Taxonomic Classification System of the United
<br /> States Fish and Wildlife Service(Cowardin et al., 1979).
<br /> "Wetland,contiguous"means wetland systems connected by hydric soils or a significant surface water
<br /> connection.For purposes of this title,wetlands will not be considered contiguous if the only hydrologic connection
<br /> is a category I, II or III stream,or if the wetlands had historically been connected but are now separated by a legal
<br /> fill or culvert which is one hundred feet or more in length.
<br /> "Wetland edge"means the line delineating the outer edge of a wetland established by using the Washington State
<br /> Wetlands Identification and Delineation Manual(Ecology Publication No.96-94, 1997).
<br /> "Wetland,estuarine" means a tidal fringe wetland found along the mouth of a river and influenced by tidal
<br /> activity.Water flows and depths are controlled by tidal cycles in the adjacent ocean. Estuarine wetlands have a
<br /> salinity higher than 0.5 parts per thousand.
<br /> "Wetland mitigation bank" means a site where wetlands are restored,created, enhanced,or,in exceptional
<br /> circumstances, preserved,expressly for the purpose of providing compensatory mitigation in advance of
<br /> authorized impacts to similar resources. Banks typically involve the consolidation of many small wetland mitigation
<br /> projects into a larger,potentially more ecologically valuable site.Such consolidation encourages greater diversity
<br /> of habitat and wetland functions. It also helps create more sustainable systems. Banks provide a greater likelihood
<br /> of success over permittee-responsible mitigation projects,since the banks are up and running before unavoidable
<br /> damage occurs to a wetland(s)at another site.
<br /> "Wetlands" means those areas that are inundated or saturated by surface or ground water at a frequency and
<br /> duration sufficient to support,and under normal circumstances do support,a prevalence of vegetation adapted for
<br /> life in saturated soil conditions. Regulated wetlands generally include swamps, marshes,ponds, bogs and similar
<br /> areas. Regulated wetlands do not include those artificial wetlands intentionally created from nonwetland sites,
<br /> including, but not limited to,irrigation and drainage ditches,grass-lined swales,canals,detention facilities,
<br /> wastewater treatment facilities,farm ponds,and landscape amenities,or those wetlands created after July 1,
<br /> 1990,that were unintentionally created as a result of the construction of a road,street,or highway.Wetlands
<br /> created as mitigation and wetlands modified for approved land use activities shall be considered as regulated
<br /> wetlands. For identifying and delineating regulated wetlands,the city shall use the Washington State Wetland
<br /> Identification and Delineation Manual.
<br /> Ch.19.04 Definitions 28 City Council Action(11/04/2020)
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