9307 18TH AVE W 2025-04-18 - Laserfiche WebLink

employed as an ecologist with WRI since July 2015. Elyse Denkers holds a Bachelor of Science degree in environmental science from The Evergreen State College and a Master's degree in restoration ecology from the University of Washington. She also holds a professional certificate in Wetland Science and Management from the University of Washington Professional and Continuing Education program. Elyse has completed specialized trainings in wetland and ordinary high water mark delineation,wetland and stream classification, and biological assessments. 1.2 SITE DESCRIPTION Access to the subject site is from the south via 93rd Place SW. The site is developed with a single- family home in the western portion of the property and a detached garage in the eastern portion. Surrounding land use is comprised of single-family residences, a golf course, and undeveloped forested areas. The property generally slopes to the east to a stream channel that runs north-south along the eastern property boundary.Vegetation on the property consists of maintained lawn, and ornamental plants surrounding the home. Vegetation in the eastern portion of the site along the streambank includes Himalayan blackberry (Rubus armeniacus), willow saplings (Salix sib.), reed canarygrass (Phalaris arundinacea), creeping buttercup (Ranunculus repens), field horsetail (Equisetum arvense), white clover (Trifolium repens), curly dock (Rumex crispus), and field bindweed (Convolvulus arvensis). One stream (Swamp Creek) is located on-site, along the eastern property boundary. Three wetlands(Wetlands A,B,and C)are located off-site in the vicinity of the subject property.Wetlands A and B are associated with Swamp Creek. 2.0 CRITICAL AREA DETERMINATION 2.1 REVIEW OF EXISTING INFORMATION Prior to conducting the site investigation, public resources were reviewed to gather background information on the subject property and the surrounding area in regards to critical areas. The following information was examined: • USFWS National Wetlands Inventory: The National Wetland Inventory (NWI) depicts a Riverine System off-site and east of the property. A large wetland complex is also depicted approximately 300 feet off-site to the west of the property. • USDA-NRCS Web Soil Survey: The Web Soil Survey maps the soils on site as Alderwood- Urban land complex, 2 to 8 percent slopes.A soil description can be found in section 2.2.2 below. • WDFW Priority Habitat and Species PHS) Interactive Map: PHS depicts the same large wetland complex as shown by NWI. • WA-DNR Forest Practices Application Mapping Tool FPAMT): FPAMT depicts a Type F stream east of the property. Talley - 18th Ave W 2 Critical Area Study and Buffer Restoration Plan WRI#19238 November 6, 2019