7609 44TH AVE W 2023-12-28 - Laserfiche WebLink

• WDFW PHS does not display any sensitive areas on or near the subject site. The closest features depicted are the wetland identified by NWI and Brewery Creek located in the same location shown on the Mukilteo Stream Wetland and Watershed map. • WDFW SalmonScape does not display any critical areas on or near the subject site. The closest mapped feature is depicted in the same location as the Mukilteo Stream Wetland and Watershed map and PHS. • DNR FPAMT does not display any streams on or adjacent to the subject site. It does depict the same stream and in the same location as listed in SalmonScape, PHS, and the Mukilteo Stream Wetland and Watershed map. 2.2 WETLAND DETERMINATION METHODOLOGY Wetland Resources' staff conducted site visits on May 25th and August 291h, 2016 to locate wetlands and streams occurring within and near the project site. Wetland conditions were evaluated using routine methodology described in the Corps of Engineers Wetlands Delineation Manual (Final Report;January 1987), except where superseded by the 2010 Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region (Version 2.0, referred to as 2010 Regional Supplement). Our findings are consistent with both manuals. The following criteria descriptions were used in the boundary determination: 1.) Examination of the site for hydrophytic vegetation (species present and percent cover); 2.) Examination of the site for hydric soils; 3.) Determining the presence of wetland hydrology 2.2.1 Hydrophytic Vegetation Criteria The manuals define 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. 2.2.2 Soils Criteria and Mapped Description The manuals define 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. According to NRCS Web Soil Survey, the soil map unit Alderwood gravelly sandy loam is predicted to occur on the subject property. Mundorf-8th St 6 Critical Area Study & WRI#16233 Mitigation Plan March 2016