125 58TH PL SW 2016-01-01 MF Import

� . Geo ��la>s;inccr: April 19, 1993 Geou•chnical. Gem in ironmemaI:nut Geologic Seri ices Select Homes 237 Elm Street Everett, Washington 98203 Attention: Mr. Randy Clark Building So,back Conditions HinabroGk Development Divisions M and W Everett, Washington File No. 2670-005•'V The purpose of this letter is to outline reduced i uildin setback conditim's for location of i homes at the tops of slopes on Di,isioa< III and IV rf the I;t,rbn ok Development in Everett, Washington. This has been discusst:l with Mr. Randy Clark of Select Homes, Mr. Pat i,f,.Cov-t of Universal Brokerage Corporati in, and Mr. Michael Crowson of W&H Pacific. f We have observed no signs of instability on native slopes in Divisions III and IV. Fill slopes on Divisions III and IV were coltstructed with structural fill consisting of on-site granular soils under full-time moritoring of a qualified individual from our firm. The strnch:ral fill is keyed into existing firm native soils and fiL placed to achieve the final slope grade., has been properly benched into existing native materials and compact d to 95 percent of;ADr (maximum dry den..ity)according to the specifirations of the ASTM D-1557 test procedure. In addition,the lots are graded to slope away from the tops of slope, and all slopes have b-en covered n ith jute mitting and hydroseeded for erosion protection. In our opinion, where slopes have been placer, compacted, graded, and vegetated as described above, the minimum building setback distance can be reduced to 10 feet, 1',e setback distance is the horizontal distance measured from the front face of the fooling to rIe face of the slope. It should be understood that if the setback distance is reduced to 10 fe,1, due risks of losing access, reducing the design life of the foundations and having slope mcvenlent impact the house foundations are increased. i 2 �i to I°ith.{ienue S E Fxdnnnd.M(),Si 1 rciepllJllt'1:�WI:•GIiN KNI F1f 1'lWt iv9{I(Ij0 �meC n ireYtYN pp 'rq.