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G ES Geotechnic�l& Environmental Services, Inc. <br /> P.O.Box1031 Everett.WA99206 (206)337-40B2or(206)659-5947 <br /> Oct. 7, 1997 97-08-40 <br /> Mr. Richard Xaas <br /> 5213 - 23rd. Ave W. <br /> Everett, Wa. 98203 <br /> � <br /> RE: Emergency Slane Re-EsJablishn�ent <br /> 5213 -23rd Ave W. <br /> Everett, Wa. <br /> Dear Mr. ICaas; <br /> Attached is GES, /nc's proposed emergency slope re-establishmeat desig� to repair a slide located in <br /> ' the back yard ofthe above referenced residence in Everett, Washiugton. In order to maintain slope <br /> ► <br /> � stability's we recommend that this repair be completed prior to the upcoming winter. The design is <br /> i <br /> based upon discussions held with you to determine your needs and budget, with the findings of our site <br /> reconnaissance and field work conducted on 8/4/97 and upan data reduction and analysis of e�dsting <br /> site conditions. <br /> It is our understand'wg that the slide occurred this past January and was caused by heavy rains and <br /> infusion of water mto the slope from roof drains/downspauts. Our reconnaissance of the site conSrmed <br /> this conclusion. 17�e sGde apparently occuned within the top of a small ravine that ha3 been 5lled in <br /> with uncontrulled &Il during house construction. Based upon our subsurface investigation, a certain <br /> amount of uncontrolled fill is still in place between tl�e top of the slide and the back of the house. Sase <br /> soil below the site area consists of Vashon Glacial Till (Qvt) which was Found in the site explorations <br /> and mapped on the Geologic Map of the site area. <br /> c;m�hnif.,l, ymfug�i� Environmrnta!'Enginrrrixg <br />