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( <br /> i <br /> � Mr.Jay Sceley � <br /> � SeptemUcr 1=1, 200C, <br /> ISite Cnnditions <br /> � Su�face <br /> The site consists of one tax parce] totaling 616 acres located norih of t11e noriBeast coruer of \-femll Creck <br /> IPar;avay and 23rd Drive�Vest in Gverctt,Washington. <br /> Tl�e site is forested prim�rily with alder trees, interspersed with severa! mature firs and waples. We observed a <br /> ( diick understory oPUlackberries and othcr Urush. The majority of the site is generally ilat, Uut the eastern poriion <br /> ef the site slopes dowr.steeply to the east to a creek. \'��e estimate overall relicf on thc:site to Ue on the order of�0 <br /> � fcet. I�cariy all of iliis rclief is covtained witliin tlie ravine ]ocated aiong thc eastern margin o£d�e site. Tl�e <br /> � ravine slopcs range from 3� to �0 percent in incliration. A small creel: is present along tl�e toe of ihe slopc that <br /> drains to�vards tl�e norih. \'Vc did not sce �my indications of deep-seated instability along tlic eastern ravine <br /> slopes. <br /> Subsn�facc <br /> i <br /> IThe Prelintina��� Siufcral Geologic 11up of dre dlrJalteo and L•rerett Ouadrangle.�, Snobomrsh Counry, <br /> 1Vashington; by Mackey Smitli, dated ]976, shows tl�e soils on tUc project site a.s Vashon "Cill (Q��t). <br /> � Observations made during our explorations are�enerally cor.sistent with this classificatio�i. <br /> The rcferenecd gcotechnicai report preparcd by AI:SI descriUes tlie Lot 3 azea as being underlain at sl�allo�v <br /> Idepths Uy glacially caisolidatcd soils. "I'hese soils consist of Vasl�on till near thc existing grades. Beneatli il�e till, <br /> advance s��ds and a ]acuslrinr, silt soil are present. All of tl�ese soils exhibit :elativcly Ivcli strengtl�s. Tena <br /> � Associates, Inc. hs�s exca��ated tcst pits for scveral ncarU� projects 1nd has encountered dense till soils close to <br /> existing gradcs. <br /> I Groundwater lonns along the top of il�e der.se till soils during and following thc wet seasov. This near-surface <br /> ! groundwater body is refeiTed to as interflo�v. Based on tlic topography on-site, Uie gradient of the interflow <br /> � �round�vater body will Uc predominantly towards the�vest, a�vay Srom ilic top of the steeper eastem ravine slope. <br /> Gcoloaic I I:v:u•cis <br /> I <br /> ( r:�•o�r�„ <br /> � The City of L��crett deGnes Lrosio�i Ilazard Areas as follo�vs: � � <br /> `9:rosion l�azard areas' means lliose areas o: tlic cily containing soils wluclt, according to the USDA Soil <br /> I Conse�vation Seivicc,County Soils Survey dated July 19S3, may experience se��ere to very severe erosioi� hazard. <br /> 'I'l�is group of soils includes the following when tltey occin�on slopes of 1� percent or greatei: Aldenvood gra•delly <br /> Isand loam(AgD),Alder�s�ood-Kitsnp(AKF), ancl �Vliidbcy fonnatiou. <br /> Project No.T-5338 <br /> Page No. 2 <br /> I <br />