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less than 19 points for habitat functions are typically dedicated 60-foot buffers, pursuant to EMC 37.110. Wetland B - Category II: The on -site wetland received a total score of 51 with a habitat score of 13 on the DOE Wetland Rating Form for Western Washington. Wetlands that receive between 51 and 69 points are classified as Category II wetlands. Category II wetlands with low habitat functions typically receive a standard buffer width of 75 feet, pursuant to EMC 37.110. . WETLAND DETERMINATION REPORT Methodology On site, the routine methodology described in the U.S. Army Corps of Engineers 2010 Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region, Version 2.0, (manual) was used for this determination, as required by Snohomish County. Under this method, the general process for making a wetland determination is based on three sequential steps: 1.) Examination of the site for hydrophytic vegetation (species present and percent cover); 2.) If hydrophytic vegetation is found, then the presence of hydric soils is determined; 3.) The final step is determining if wetland hydrology exists in the area examined under the first two steps. The following criteria descriptions were used in the boundary determination: Vegetation Criteria The manual defines hydrophytic vegetation as the sum total of macrophytic plant life that occurs in areas where the frequency and duration of inundation or soil saturation produce permanently or periodically saturated soils of sufficient duration to exert a controlling influence on the plant species present. One of the most common indicators for hydrophytic vegetation is when more than 50 percent of a plant community consists of species rated "Facultative" and wetter on lists of plant species that occur in wetlands. Soils Criteria and Mapped Description The manual defines hydric soils as those that formed under conditions of saturation, flooding, or ponding long enough during the growing season to develop anaerobic conditions in the upper part. Field indicators are used for determining whether a given soil meets the definition for hydric soils. The soils underlying the site are mapped in the Soil Survey of Snohomish County Area Washington as Alderwood-Urban land complex, 2 to 8 percent slopes. Alderwood- Urban land complex, 2-8 percent slopes: This unit is about 60 percent Alderwood gravelly sandy loam and about 25 percent urban land. Included in this unit are small areas of McKenna and Norma soils and Terric Medisaprists in depressional areas and drainageways on plains. Also included are small areas of soils that are very shallow over a hardpan; small areas of Everett, Indianola, and Ragnar soils on terraces and outwash plains; and soils that have a stony and bouldery surface layer. Included areas make up about 15 percent of the total acreage. The Critical Area Study and Buffer Averaging Plan March 16, 2016 C & D Land Co.I06111 Street SW 3 WRI # 151I1