5414 1ST DR W 2016-01-01 MF Import

,-. � Geu�Ens;ineers AP[II 19, 1993 Gcoicchnlcal. Gcoencironmcnta�and Geologic Sercice. Select Homes 237 Elm Strcet ' Everett,Washington 98203 Attention: Mr. Randy Clark Building Setback Conditions Hanabrook Devdopment Divisions III and IV Eva�t, Was6ington File No. 2670-0OS-R06 'lbe pucpose of this letter is to oudine reduced building setback conditions for locadon of homes at the Wps of slopes on Divisions III and N of the Aanabrook Development in Everea, Was6inaton. This has been discussed with Mr• Randy Clazk of Select Homes, Mr.Pat McCourt of Univusal Hrolcaage Corporation, and Mr. Michael Crowson of W&H Pacific. We have observad no signs of in�tability on native slopes in Divisioos III and IV• Fill slopea on Divisions IQ and IV wae�°°Stxuct°d W�th Swcn'ral fi��°nsisting of on-site granulaz soils unda full-time moniWrinE of a qualified individual from our firm. 'Ib� swctural fill is lceyed into existing firm native soils and fill placed to achieve the final slope grades hu bcen properly benched into existing native materials and compaMed to 95 percent of MDD (maximum dry density)according to d�e specifications of the ASTM D-1557 test procedure. In addition,the lots are gradod to slope away from the tops of slopes and all slopes have been covered with jute maning and hydroseeded for erosion protection. In our opinion, where slopes have been placed, compacted, graded, and vegetated as dascribed above,the minimum building setback distance can he reduced to ]0 feet. 'i'he setback distance is the 6orizontal distance measured from the front face of che footing co the face of the slope. It shoald 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 foundations are increased. .. . . -.��..�� •� f. ,,. , ,�.��:: �:,, _ ,•��,i, ,,, ,_. :�+ . ..,��:��