5529 1ST DR W 2016-01-01 MF Import

Geo�Engineers April 19, 1993 Gcutcchnical. froem�irunmental anA Geologic Ser�ia•s 3elect Homes 237 Elm Street Everett, Wuhington 98203 Attention: Mr. Randy Clazk Building Setback Conditions Aanabrook Development Divisioas III and N Evaat, Washington File No. 2670-005-R06 'Ibe purpose of this letter is to outline reduced building setback conditions for location of homes at the tops of slopes ou Divisions III and N of the Hanabrook Development in Everea, Washingcon. T6is 6as been discussed with Mr. Randy Clazk of Select Homes, Mr. Pat McCourt of Universal Brokaage Corporation, and Mr. Michael Crowson of W&H Pacific. We have observed no signs of instability on native slopes in Divisions III md IV. Fill slopes on Divisions III and N wae coaswccod with swctural fill coasisting of on-site granular aoils undu full-time monitoring of a qualified individual from our firm. The stroctural fill is keyed into e�cisting firm native soils and fill placed to achieve the final slope grades has been properly benched into existing native materials and compactod to 95 percent of MDD (maximum dry density)according to ihe specificadons of the A3TM D-1557 test procedure. In addition,the lots are graded to slope away from the tops of slopes and all slopes liave been covereA with jute matting and hydroseaded for erosion protection. In our opinion, w6ere slopes have been placed, compacted, graded, and vegetated as described above, the minimum building setback distance can be reduced to 10 feet. The setback distance is the horizontal distance measured from the front face of d�e footing to the face of the slope. It shouid be understood that it 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 aze increaced. ... _�,� „�i,