11217 19TH AVE SE 2016-01-01 MF Import

northeastcm comer of lhe silc, immcdialcly nortlt ol I 10'�' Strcet SG. 'I7iesc broad survcys, howc��er are Uased on secondary sources such as aerial photographs, and are not necess�nily based on a site I visit. The Silver Lake wetland invcntory conductcd in 1990 identifies one Category II riparian �veQand � (Invcntory Wetiand N38) co��crine 43,G38 sc�uare fcet in lhe vicinity of lhe property's casterr. boundary (DEA, 1990). Thc �vciland was Jescribed as having an emcrgent componcnt dominated by reed canarygrass within its northem pertion and a forested component dominated by�vestern red cedar (77u jn p/icata), immature red alder, and salmonberry (Rt�Gus spectnbilis) (DEA, 1992). A drninage is a�so iclentificd that conveys Ilows from a �vetland Iocated north of I10°i (Im�entory Wetland 1t39) through a channel to Wetland 1138. The �vater was described as continuing south from WcUand I{38 and entcring a culvert that crosses SR 52? and dischargcs into Silvcr Lakr,. The Snohomish County soil si�rvey iJcntifies Alden��ood-Urban Land Complex soils throughout '� the site (SCS, 1983j. Aldenvood-Urban Land Complcx soils arc described as moderately well I drainrd with pernieability modcratcly rapid abovc a h:vdpan layer and vcry slow duough the hardpan. Aldcnvood-UrUan L:md Complex soils suppori a scasonal pc�ched �varer table at a depth � of 18 to 36 inches from January to March (SCS, 19831. Aldenvood-Urban Land Complex soils are not on thc Washington Statc Ilydric Soil List, but it can support Uydric soil inclusions(SCS, 1°90). 3.3 rIrLD INVGST[GATION 3.3.1 �Vctlands The results of the field investigation conducted by DEA on Decembcr 1 l, 2003, identificd hydric soils, hydropl�ytic planls, and evidence of wedand hydrology in one area on the property. This area was dctennincd to mcct thc criteria for jurisdictional wetlands, therefore, it was delir.caled and identified as Wclland A. �Vcd�u�d A spans thc dramage Ihat llows along the eastern property boundary:u�d occurs primarily off-site(Appendix B). Wetland A covers a total of 4.2f,R sauare feet (0.10 acrcj, of which 2,191 square fcet (0.05 acre) occurs on-sit t 4 documents the rcpresenh:tive conditions in WeUand A, while data plots 1, 2, 3, and 5 document adjacent upland areas on-sitc(Appcndix A). 'fhe wcqand has cxpericnced considerable degradation from past grading and on-going trash dumping ancl pcdestri:m traf(ia As a result, the vegetation in and around the wetland are dominated by weed specics, arcas wilh compacted soils devoid of vegetation are present, and an abundance of trash occurs throughout Wetland A and its buffer. Soils. Soils consistcd of a vcry dark gray (lUYR3/f) silty day loam �vithin 1G inches of the soil surface at data plot d. Soils contained sand dcposits in the upper d to 6 incL•es in somc parls of the wetlaud clusest to the drainagc. Thesc soils wcre detennined to be hydric based on the presence of a lo�v(1) matrix chroma color immediately bclow 10 inches depth. P.b10015D0117-01I.M`.�0.MFeviscd WCIIanJRepal JuN 70Dl.doc SenSili��c:1reas li��:dua�ion i July 200d � Sih•cr Lakc Cenhr Property �-