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January st,sung <br /> :.f <br /> Limited roe ol.,.is I allusdnn. <br /> Geologic Hazards <br /> bloat cr tirul a»ordiaia010.1 dcavgna e:slope i,with amplitudes greater than about to percent:arid <br /> vertical r lief of at !mat tat filet a.s potentially geologically hazardous (Steep slopefland'fide <br /> bastards). <br /> The site contains ales ssiith magnitudes of up to 25 percent and relief of about 35 feet. Thereat* <br /> mapped steep,dope amass(greater than t`t percent)approximately 30 fee foist of the troperty°, <br /> Slope amas within the property appear stable at this harass-id)no rttidc-It o of,shallow aloughrng, <br /> spring activity,v ain,earltatutt'scalestcoveraien a <br /> It is our opinion than property does not contain .lopes that meet the criteria in the Everett <br /> tvfunicil%al Code ari handslide hazards, '(bit site;.lops arras art:;stable at this time and resistant to. <br /> tom]and global instability. <br /> The lieu surface sails have a moderate to severe mission potential hi a disturbed(exposed)stater <br /> however,typical gressiera control desired,when properly installed and anaiatvinset,should pres'nt <br /> site sods and runoff from leaving the txsnnrnrtion a1 Nat. <br /> Conclusions&Recommendations <br /> it is our opinion that the site is stable and resistant to global instability. We did not obsetse areas <br /> consistent with landslide hazard areas as defined:by the City of]?emit Municipal Code, <br /> There as a chance that temporary excavations utilized far basement construction could experience <br /> sloughing delatenditt>t on the grotitaciwat,i° . itditictus ltiuutg t stintrtmtiota and slope aliases <br /> utilized.The fallowing section includes recommendations for temporary excavations. <br /> Temporary Excavations <br /> tia;.ed on our understanding i f the panels,we ant.icip ii.'that the gradiug'bold include Icxal cent <br /> via the archer of ap.prosintateh'R feet or less t€tr basement foundation:placement F_xcs.itions <br /> shouid he sloped no steeper than t81l;A '(Ifortzsmialtt"crtiral)in lo.ea•native*rails and at1<a 'in <br /> medium dense ta7 derma natire soils. if an excavation is subiect to heat),vibration ter surcharge <br /> !rails,we rec'i>ntinerel that the escacations be sloped not steeper than alI.i't where r'utm permits. <br /> Temperrary cuts„shoutld he in;ic°s:,ai'lanc'with the 4b`ashis5„eats Administrative Code.1WACj Part <br /> N,pxcas etitm,Trenching,and Shoring, Temporary shapes should be visuall',imported daily by a <br /> gstatlitittt i, °hoot during coot.i ii.tt.us autisuiaati nald the ireapaea-taims shanrid be documented in dad) <br /> reports, 17ic contractor is responsible for maintaining the stability of the temporary cut sloymi <br /> rand reducing slope:erosion-hiring e'x r tretctitrn, <br /> Temporary cut slopes should be catered with s squeen to help reclaim erosion during wet weather. <br /> and the.slops's s?routti be closely t tunstuted until the lx^rntiancitt retaining svbten.s or slave <br /> configurations are complete. Materials should not be stored or equipment operated within to feet <br /> of the top of any tentpt:r:aty cut slope,. <br /> in the case of temporary cuts,the existing soil conditions may not Ile;completely revealed until <br /> the excavation stork exposes the.aid. `Iypicalit as tt c°aresatiaan e+urrk pratgres the maximum <br /> inclination of temporary slopes will need to he re-evaluated In the geotcchnical engineser set that <br /> supplemental reroinmendations can hr made. !;.ail:and groundwater conditions can he:highly <br /> tart.ble. Scheduling for broil work will need to Itti :adjustable, to deal with unanticipated <br /> conditions,so that the prifieel ciao proceed rand roquired deadline can be met, <br /> wscs,'cl,,dtect=tcatst (2ttf,1; t1-ttsy7 <br /> G/..6) AE2018-97 <br />