11921 SILVER LAKE DR 2022-04-05 - Laserfiche WebLink

METHODOLOGIES OF CRITICAL AREAS EVALUATION Wetlands & Wildlife, Inc. used methodologies described in Determining the Ordinary High Water Mark for Shoreline Management Act Compliance in Washington State to determine the regulated Ordinary High Water Marks(OHWMs)on the subject properties. The routine methodologies described in the Washington State Wetlands Identification and Delineation Manual (Washington State Department of Ecology Publication #04-06-029, October 2014) were used to make a determination regarding the presence of any regulated wetlands, as required by the City of Everett. In addition, Wetlands & Wildlife, Inc. evaluated the site using the U.S. Army Corps of Engineers Wetland Delineation Manual produced in 1987 and the U.S. Army Corps of Engineers Regional Supplement to the Corps of Engineers.Wetland Delineation Manual: Western Mountains, Valleys, and Coast Region produced in May 2010 (hereinafter referred to as "the Corps Regional Supplement"). The Corps Regional Supplement is designed for concurrent use with the 1987 Corps Wetland Delineation Manual and all subsequent versions. The 2010 Regional Supplement provides technical guidance and procedures for identifying and delineating wetlands that may be subject to regulatory jurisdiction under Section 404 of the Clean Water Act. Where differences in the two documents occur, this Regional Supplement takes precedence over the Corps Manual for applications in the Western Mountains, Valleys, and Coast Region. According to the federal and state methodologies described above, identification of wetlands is based on a three-factor approach involving indicators of hydrophytic vegetation, hydric soils, and presence or evidence of persistent hydrology. Except where noted in the manuals, the three-factor approach discussed above requires positive indicators of hydrophytic vegetation, hydric soils, and wetland hydrology to make a determination that an area is a regulated wetland. Using the aforementioned manuals, the site characteristics for making a wetland determination include the following: 1.) Examination of the site for hydrophytic vegetation (species present/percent cover); 2.) Examination for the presence of hydric soils in areas where hydrophytic vegetation is present; and 3.) Examination to determine if adequate hydrology exists for sufficient durations during the early part of the growing season in the same locations as the previous two steps. Per industry standards, Wetlands & Wildlife, Inc. examined the entire subject site. Per current City of Everett requirements, Wetlands & Wildlife, Inc. also assessed adjacent properties within 300 feet of the proposed project limits, to the maximum extent possible without entering adjacent properties. While a detailed assessment of Critical Areas on adjacent properties was not possible due to lack of legal access, Wetlands & Wildlife, Inc. conducted a review of all available information to assess the presence of off-site Critical Areas within 300 feet of the subject site. This review is necessary to determine if any regulated Critical Areas exist off-site which would cause associated protective buffers to extend onto the property and affect the development proposal. In addition to on-site field reviews, Wetlands& Wildlife, Inc. examined aerial photographs and topographical data (elevation contours) on Snohomish County's PDS Map Portal map system. Soil survey maps produced by the Natural Resources Conservation Service (NRCS), National Wetlands Inventory (NWI) maps produced by the U.S. Fish and Wildlife Service (USFWS), Priority Habitats and Species (PHS) maps Wetlands& Wildlife, Inc. July 27,2020 Critical Areas and Shoreline Report—Schireman Proposed House Additions Incorporated City of Everett,WA(Tax Parcel Nos.00574900000200&00574900000302)