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� - . <br />Geo�f:ngineeis <br />Select Homes <br />237 Elm Street <br />Everett, Was6ington 98203 <br />Attention: Mr. Randp Clark <br />April 19, 1993 fcotcchnical. <br />Gmenrironmcntal and <br />Gcologic Serviccs <br />Building Setbacr Conditions <br />Hanabrook Development <br />Divisions IQ and N <br />Everdt, Wuhington <br />File No. 2670-0OS-R06 <br />'ILe pucpose of this letta is W oudine reduced building setback conditions for location of <br />6omes u the toPs of slopes on Divisions III and N of the Hanabrook Development in Eva�t, <br />�y�h�o, 7bis has been discussed wiih Mc• Ra�dy Clazk of Seled Homes, Mr. Pac McCouR <br />of Universel Brokerage Cocporarion, and Mc. Michad Crowson of W&H Pacific. <br />We 6�ve ob5avod no aigns of instabiliry on native slopes in Divisions 1II and N. Fill <br />slopes on Divisioac III and N wae const�uM°d with suuctm's1 fill consisting of on-site gcanalaz <br />soils unda tull-time mon�torioB of a qualifiad individual from our firm. 'It�e structural fill is <br />keyed inW acisuoB firm oative soils and fill placed to achieve d�e final slope grades has been <br />properly benched into existing native materials and compacted W 95 percent of MDD (mazimum <br />dry densiry) according to the spacifications of the ASTM D-1557 test procedure. In addition, the <br />lots are graded to slope away from tLa tops of slopes and all slopes have been covered with jute <br />matting and hydroseeded for erosion protection. raded, and vegetated as <br />In our opinion, wbere slopes 6ave been placed, compacted, g <br />describad above, the minimum building setback distance can be reduced to 10 feet. The setback <br />distance 9s the horizontal distance measured kom the front tace of the footing to the face of the <br />slope. It should be understood that if the setback distance is redaced to 10 feet, the risks of <br />losing access, reducing the design life of the foundations and having slope movement iropact che <br />house foundations are increased. <br />, .. ��<<.. ��n� <br />: � r.�,�, .�•.��nu�� � I� <br />..r'.i, �nJ. \Cd �i5i i; ` <br />. ;:n�neiJw„�„��, ��� <br />� 'n� � tiol:,� �:n <br />