7702 RAINIER DR 2022-04-05 - Laserfiche WebLink

To create a more usable lot and provide an easily demarcated, straight buffer line, the applicant is proposing to reduce a total of 264 square feet of the existing buffer through averaging. As mitigation for this buffer reduction, the applicant is offering to designate a total of 264 square feet of equivalent quality area as buffer.This will result in a 1:1 ratio of buffer addition to buffer reduction and will maintain the overall area of buffer on the lot.The proposed buffer averaging will result in a minimum buffer width of 49 feet, which is 81 percent of the standard buffer width and is greater than the 75 percent minimum buffer width required for buffer averaging. The proposed buffer averaging will increase protection to the wetland and stream, and maintain the overall level of functions and values provided buy this buffer. As a result, this action appears to be in compliance with EMC 37.110(D). The applicant is proposing to install a two rail fence and signs along the perimeter of the buffer as required by EMC 37.110(E). The signs and fencing will serve to demarcate the limits of the development and discourage intrusion in to the adjacent critical areas Overall, the proposed project will result in improved protection to the subject wetland and stream and an increase in the level of functions and values provided by the on-site buffer. METHODOLOGIES OF CRITICAL AREAS DETERMINATION In September of 2015, Acre Environmental Consulting, LLC conducted a site visit to locate wetlands and streams on and adjacent to the subject site. The methods used for delineating, classifying, and rating the critical areas in the project area are consistent with current Federal, State, and City of Everett requirements. At the time of our September 22, 2015 field delineation,the weather was sunny with a temperature of 55 degrees Fahrenheit. Wetlands were identified using the routine methodologies described in the Washington State Wetlands Identification and Delineation Manual (Washington State Department of Ecology Publication #96-94, March 1997). In addition, Acre Environmental Consulting, LLC 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, the Corps Regional Supplement takes precedence over the Corps Manual for applications in the Western Mountains, Valleys,and Coast Region. Acre Environmental Consulting, LLC October 29,2015 CAS&Buffer Mitigation Plan for—Kymera Inc.-7702 Rainier Drive Everett,WA Page 3