7702 RAINIER DR 2022-04-05 - Laserfiche WebLink

SITE DESCRIPTION On September 22, 2015 Acre Environmental Consulting, LLC visited the approximate 0.45-acre property located at 7702 Rainier Drive in the City of Everett, Washington. The site is further located as a portion of Section 07, Township 28N, Range 05E, W.M. The parcel number for this property is 00393600100500. This purpose of this site visit was to locate and assess regulated critical areas on and adjacent to the subject site. Surrounding land use is comprised of commercial development to the west with single family residences in all other directions. Access to this site is from the east via Rainier Drive. The western portion of this property currently contains an existing single-family residence with an associated garage. The remainder of the site contains a mixture of maintained lawn, scattered trees, and areas of what appear to be unmaintained landscaping with yellow archangel (Lamiastrum galeobdolon, Nol/UpI) dominant in the understory. This report was prepared by Louis Emenhiser who also conducted the field-work. Louis is a certified Professional Wetland Scientist with a Masters Degree in Soil Science and over fifteen years of professional experience. A Category III, slope wetland is located along the western border of the site and extends off-site to the north, south, and west.This wetland is associated with a Type Ns stream that flows north and comprises a portion of the headwaters of Pigeon Creek No. 1. In the City of Everett, Category III wetlands receive 60-foot protective buffers while Type Ns streams with a buffer that is sparsely vegetated, un-vegetated, or is vegetated with invasive species receive a standard buffer of 75 feet. When buffer enhancement is provided in compliance with EMC 37.110(A)(6) and EMC 37.170(C), the standard stream buffer is 50 feet. In instances where two or more buffers overlap,the more restrictive shall apply. PROJECT DESCRIPTION The applicant is proposing to divide the property and create an additional lot located west of the existing house. As discussed above,the buffer is currently comprised of scattered trees with an understory comprised of what appears to be unmaintained landscaping with yellow archangel (Lamiastrum galeobdolon, Nol/UpI) and other invasive species dominant in the understory. Because the existing wetland and stream buffer is vegetated with invasive species, the applicant is proposing to enhance the entire on-site buffer as required by EMC 37.110(A)(6) and EMC 37.170(C). Buffer enhancement will consist of removing invasive species and planting native trees and shrubs. As part of the buffer enhancement, the applicant is proposing to remove a portion of an existing, unneeded sewer line that is located in the buffer. Removal of this feature will be done concurrently with the removal of invasive species and the disturbed area will be seeded to the grass seed mixture recommended in this plan and restored with native trees and shrubs as part of the buffer enhancement. Acre Environmental Consulting, LLC October 29,2015 CAS& Buffer Mitigation Plan for—Kymera Inc.-7702 Rainier Drive Everett,WA Page 2