5408 1ST DR W 2016-01-01 MF Import

,� ,-. Ge��Enginee�� Apiil 19, 1993 ' c�oi.ci�nicai. Gcocm ironmemul and f eologic Scrvims Select Homes 237 Elm Strea • Everat, Wuhington 98203 Aaention: Mr. Randy Clarlc Building Setbacic Conditions Hanabrook Development Divisioos III and IV Evaett, WuhingWn File No. 2670-005-R06 'Ite puipose of this ldta is to oudine teduced building setback condidons for location of homes at the Wps of slopes on Divisions IQ and IV of the Hanabrook Development in Everett, Wa�hington. 'Ibis has been discussed with Mr. Raady Clark of Selecc Homes,Mr. Pat McCourt of Universal Bcoiaage Cocporation, and Mr• Michad Crowson of Wd�H Puific. • We have obsaved m eiBna of instebiliry on oative alopes in Divisions III end N. Fill slopes on Divisions III and IV wae coactivaed with attuceural fiii coacisting of on-site granular soils uoda full-time monicorinB of a qualified individual from our firm. 'll�o stn+caual �1� is r�yed inw ex9sting firm native soils and fill placad to achieve the final siope grades has been properly benched into ezisting native mataisls and compacted to 95 percent of MDD (maicimum dry density)according W the specifications of the ASTM D-155 i test procadure. In addition,the lou are graded to slope away from the tops of alopes and all slopes have been covered with jute matting and 6ydrosceded for erosion protection. In our opinion, where slopes have been placed, compacced, graded, and vegetated az described above,the minimum building setback distance can be reduced to 10 feet. The setback distance is the 6orizontal distance measured from the front face of the footing to the face of the slope. I: ahould 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 impaa the house foundations aze increased. � :'IIIY . � i. , .. . 1. '.t:�'.75�"u_ �� ayli_ ,ii'il�qltl_u-�,�i,l � n ' ::A•_�Yn1bI-oi�:ii • .e. r-e�:a�:.,