112 58TH PL SW 2016-01-01 MF Import

�gsAnwas: R Gc(t�Engineers April 19, 1993 cenu•chnical. (i IIn1vntat and f culogii sees ices Select Homes 237 Elm Street Everett, Washington 98203 Attention: Mr. Randy Clark Building Setback Conditions Hanabrook Development Divisions III and IV Everett, Washington File No. 2670-005-R06 The purpose of this letter is to outline :educed building setback conditions for location of homes at tho tops of slopes on Divisions HI and IV of the Hambrook Development in Everett, Washington. This has been discussed with Mr. Randy Clark of Select Homes, Mr. Pat McCourt of Universal Brokerage Corporation, and Mr. Michael Crowson of W&H Pacific. We have observed no signs of instability on native slopes in Divisions III and IV. Fill slopes on Divisions 1B and IV were constructed with structural fill consisting of on-site granular soils under full-time monitoring of a qualified individual from our firm. The structural fill is keyed into existing firm native soils and fill placed to achieve the final slope grades has been properly benched into existing native materials and compacted to 95 percent of 1dDD (maximum dry density)according to the specifications of the ASTM D-1557 test procedure. In addition,the lots are 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, compacted, gtaded, aid vegetated as described above, the minimum building setback distance can be reducW to 10 feet. The setback distance is the horizontal distance measured from the front face of the footing to the face of the ;lope. 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 ane having slope movement impact the house foundations are increased. Gr,Fa��uran.Inc. ��I,. hith.{irntn•S.E hednxetd.{Y.{ OSo;! Trlrrang.1'In 14,140 x"i Fa{i?�rd Al,l�n;b