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� Associated Earth Sciences, Inc. <br /> _ ` _ �r ;�'� � <br /> �r� ' 4 � <br /> Cel�r�+l"nyz5' yeni�•of.Se��vir,e <br /> Technical Memorandum � ° 7°�vO�� <br /> llatc: July 18, 2007 <br /> To: Sergey Kibitskiy Project Name: Kibitskiy Residence <br /> 16511 41" Drivc NL <br /> Arlington, Washingtun 98223 <br /> From: Ldwardo Garcia, P.G. Projecr No: EG070474A <br /> Brucc L. 131yton, P.G.�� <br /> Subject: rcology Block Retaining 1'Vall, Geotechnical Design Parameters <br /> AssociatcJ Garth Sciences, Ir,c. (AESI) has prepared Uiis memorandum to provide our <br /> recommendations for geotechnica�design parameters for the temporary ecology block retaining�vall <br /> proposed along d�c northcrn property boundary of the subject site. Our �vall design is based on <br /> exposed soil conditions and one subsurface exploration. <br /> �Ve have designed the ecology block retaining wall to be bet�veen 5 and 10 feet in height with level <br /> backslopes. The attach�d drawings and calculation sheets sho�v the recommended wall <br /> cross sections and the basis of design for tl�e walls. <br /> ALSI must be allowed to obscrve footinc areas and wall construction to confirm that the soil <br /> conditions are as expecte�. ��urihermore, ACSI must Ue allo���ed ro review the approved plan set <br /> prior to construction. <br /> �Ve havic enjoyed ���orking with ��ou on this sludy and arc confidei�t that the rccommendations <br /> presented in this memorandum will ai� in the successful completion of your project. ICyou should <br /> have any yuestions or if«•e cau Uc of additional help to you, please do not hesitate to call. <br /> Attachmcnts: Dra���in�s and Calculation Shccts <br /> i r,-ar <br /> id:n;�N��na <br /> ruycnr,:m;u+;.r��r.�.N�r <br /> �'� <br />