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' Geo�En�ineer �' "� <br /> April 19, 1993 Geo�echnicai, <br /> Geoem�lronmen�al and <br /> Gmlogic Sen•ices <br /> Sdax HOmes <br /> 237 E:m Strat <br /> ' Everat, WuhingWn 98203 <br /> ACention: Mr. Randy Clark <br /> Building Setback Conditions <br /> Hanabrook Development <br /> Divisioas III �nd Iy <br /> Everatt, Wuhington <br /> � File No. 2670-0OS-Rp6 <br /> 1Le pucpc►se of this leua is W outline reducod bu�ding setbuk conditioas for location of <br /> 6oma u the tops M dopes on Dtvtsions III and N of ihe Hanabrook Devdopmeat in Everat, <br /> Washiqywn. 1Lis 6�s bem disa�ssed with Mc. Rsndy Gart of Sdea Homes, Mr.Pu McCourt <br /> of Untvaad Bm1u�Ye Co�ndon, a� Mr. Michad Crowson of WdrH Pui6c. <br /> We have obsaved no siyos of instabillty oa native slop� in Divisions III +md N. Fiil <br /> tlopes on Div(aioos III aod IV�vae coastiucted with ewcwnl fill coasisting of on-site granulu <br /> wlle aader !WI-time moaItoring of a quslified individwl from our fum. T6r savcar�l fill is <br /> kq'ad i�n acisting firm nuive wils and fill placed to achieve the final alope grades Las been <br /> Propa�Y beached into acisdng n�tiv azerials�nd compaaed to 95 percent of I�D (mazimum <br /> �Y a���3')���'dic�to the apocificatioac of the ASTM D-1557 test procedure. In addition,the <br /> �ots ue Yr�dod W alope away from the taps of slopes and all slopes have been covered with jute <br /> mattin�and 6ydroseaded for aosion protection. <br /> In our opinion, whae alopes have been placed, compaaed, graded, and vegetated as <br /> describod above, the minimum building setback distance can be reduced to 10 fcet. 7be setback <br /> distance is the 6orizontal distance measured from the front face of the footing co the face of the <br /> slopa It ahould be understood that if the setback distance is reduced to 10 feet, the risks of <br /> losing access, raducing the design life of the foundations and having slope movement impact the <br /> house foundations are increased. <br /> QiriF.n�;in���c.lnc. - <br /> 3ilU I;iih.4��enur\.F.. <br /> Ridmon'.11:i 9ROi] <br /> Telephnni i]iN�1 R(da�lNin <br /> R6c(:IN�i�o1�60i0 <br /> RimeO ai ran40 wx�. <br />