5406 1ST DR W 2016-01-01 MF Import

,.� _ Geo�Engineen Ap[il 19, 1993 fcotcchnicwi. f,cocm�ironmcm:.�and fcologic Scr��icec Select Homes 237 Elm Strat Everett, Wuhington 98203 Attention: Mr. Randy Clark Huilding Setback Conditions Hanabrook Development Divisioat III and IV Evaat, Wuhington File No. 2670-005-R06 1he purpose of this letta is w ouUine reduced building saback conditioas for locadon of homes u the tops of alopes on Divisioas III and N of the Hanabrook Development in Everett, Wuhinyton. This hac been discussed with Mr. Randy Gark of Select Homes, Mr. Pat McCourt of Univaasl Bcotasye Corporation, and Mr. Michad Ccowson of W�Ii Pui6c. We have obsaved no aigns of instability on native slopes in Divisioos III and IV. Fill alopta on Divisions III and IV wae conshuctod with structural fill consisting of on-site granular aoils unda tull-time monitoring of a quslified individual from our firm. 7be structural fill is keyed into eaisting firm native soils and fill placed to achieve the final slope grades has been propaly benche� into eacisting native materiats and compaMed to 95 percent of MDD(maximum dry deatity)according W the specifications of the ASTM D-1557 test procedure. In addition,the lots aze graded to slope away froa the tops of slopes and all slopes have been covered with jute matting and hydroseeded for erosion protection. In our opinton, where slopes have been piaced, compacted, graded, and vegetated as described above,the minimum building setback distance can be roduced to 10 feet. The setback distance is the 6otizontal distance measured from the front face of the footing to the face of the slo�,.:. It should be understood that if the setback distance is reduced to 10 feet, the risks of losing access, raducing the design life of the foundations and having siope movement impact the house foundations are increased. . . � � i !��c�i,�n,i �,�,, .�:��;� .. , �� _ .�,I�i�nn�� f.!� :h�, , .�;�.