Ordinance 3676-19 - Laserfiche WebLink

"Upper bank" means that portion of the topographic cross section of a stream which extends from the "Wetlands,"for the purpose of inventory mapping, means lands transitional between terrestrial and aquatic systems where the water table is usually at or near the surface or the land is covered by shallow water. Wetlands must have one or more of the following three attributes: 1. At least periodically, the soil supports predominantly hydrophytes; 2. The substrate is predominantly undrained hydric soil; 3. The substrate is non soil and saturated with water at some time during the growing season of each year. Wetlands include all areas waterward from the wetland edge. Where the vegetation has been removed, or substantially altered,a wetland shall be determined by the presence or evidence of hydric or organic se+ls "Wetland boundary" means,for the purposes of the calculation of the area of the wetland, the total extent of the wetland, both on site and off site. "Wetland class" means a description of vegetation habitat based on the predominant life forms that occupy a particular layer of vegetation and possess an aerial coverage of thirty percent or gr ater of the entire wetland.The basis for these descriptive classes is derived from the Wetlands Taxonomic Classification System of the United States Fish and Wildlife Service (Cowardin et al., 1979). "Wetland, contiguous" means wetland systems connected by hydric soils or a significant surface water connection. For purposes of this title, wetlands will not be considered contiguous if the only hydrologic connection is a category I, II or Ill stream, or if the wetlands had historically been connected but are now separated by a legal fill or culvert which is one hundred feet or more in length. "Wetland edge" means the line delineating the outer edge of a wetland established by using the Washington State Wetlands Identification and Delineation Manual (Ecology Publication No. 96 94, "Wetlands, emergent" means a regulated wetland that does not qualify as a forested wetland or a scrub shrub wetland with at least thirty percent of the surface arca covered by erect, rooted, herbaceous vegetation as the uppermost vegetative strata. "Wetlands,forested" means a regulated wetland with at least thirty percent of the surface area covered • „ •, - - 1. Arc outside of and not contiguous to any one hundred year floodplain or riparian corridor of a lake, river str ndl 2. Have no contiguous hydric soil or surface water connection between the wetland and another surface water body. EMC Title 19.37 (Critical Areas) Page 70