5525 1ST DR W 2016-01-01 MF Import

' � Geo�Enginee�s Ap[il 19, 1993 Gco�cchnical. Geoenriranmental and Gcologic Srrcice. Seled Homes , 237 Elm StreU Everett, Wathington 98203 Aaendon: Mr. Randy Clark . Building Setback Conditions Hanabrook Development Divisioat III and IV Evaeu, Wu6ingwn File No. 2670-005-R06 7he pucpose of this Idia is to ou�ine reduced building setback conditioas for locadon of 6omes u the Wps of alopes on Divisions III snd N of the Hu�abrook Development in Everea, Wuhinpton. 'Ihis hu been discussed with Mr. Randy Clazk of Sded Homes, Mr. Pat McCourt of Univexaai Bmkaage Cocporuion, u�d Mr. Michad Crowson of W.�H Pacific. We hrve obsaved no sigos of icutsbility on native slopes in Divisions III and IV. Fill alopes on Divisions III�nd N were constmcted with swctural fill consisting of on-site granular aoils unda full-time monitoring of a qualified individual from our firm. 'ILe stcuctura! fill is keyed into aciating firm native soils and fill placed to achieve the final slope grades has been propuly benched into ezisting native materials and compacted w 95 percent of MDD (maximum dry density)according to the apecificadons of the ASTM D-1557 test procedure. In additiou,the lots ue graded to slope away from the tops of slopes and all slopes have been covered with jute matting and hydroseeded for erosion protection. In our opinion, where slopes have been placed, compaaed, graded, and vegetated az described above,the minimum Guilding setback distance can be reduced to 10 feet. The setback distance is the hotizontal distance measured from the front face of ihe footing to the face of the slope. It should be understood that if the setback distance is reduced to 10 feet, the risks of losing access, reducing the design life of the foundations and having slope movement impact the house foundacions are increasnd. ,,, ;�., i�,rn �<<n,�� •, i � „i�: �[a a.��:: �;�, �_�r,�.�,i.�„��„ . ..�_�h,�y�l�r.u:n , .__ �<:.:.�:.,.�