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� G E O T E C H �3u6 NE 2Uh Svat,S�ite 16 P.O.Box 2054 <br /> � CONSULTANTS, INC. B`��C°°`'W^ 98005 Tacoma,WA 98401 <br /> 206-747-5618 FqX'/47-8561 206-627-5990 FAX 627-2I14 <br /> ��� <br /> ���� <br /> August 13, 1997 <br /> JN 97082 <br /> The quadrant Corporation <br /> PO Box 130 <br /> Bellevue, Washington 98009 <br /> Attention: Mike Warren <br /> Subject: Geotechnical Engfneering Study <br /> Proposed Three-8uilding Facility <br /> Lot 2F, Seaway Center <br /> Merrill Creek Parkway <br /> Everett, Washington <br /> Dear Mr. Warren: <br /> We are pleased to present this geotechnical engineering report for the proposed three-building <br /> facility to be constructed in Everett, Washington. The scope of our work consisted of exploring site <br /> surface and subsurface conditions, and then developing this report to provide recommendations for <br /> general earthwork and design criteria for foundations, retaining walls, and pavements. <br /> The subsurface conditions of the proposed development site were explored with 14 test pits prior to <br /> the recent earthwork, and our personnel have also made observations during the earthwork. The <br /> test pits and observations have revealed the dense, glacial till soil are generally located at shallow <br /> depths at the site. Near the middle of the site, a wetland had been excavated and replaced with <br /> structural fill. In generai, the fill was in adequate condition except for one area where loose soil <br /> was observed. The loose fill should be replaced with new structural fill. The on-site soils are silty <br /> and thus sensitive to moisture. These soils can be very difficult to work with and can become <br /> destabilized by construction tra�c if wet. It is important that the building pads and traffic areas be <br /> covered with pit-run gravel, in addition to geotextile filter fabric in traffic areas, prior to the normally <br /> wet fall months if the building slabs and/or pavement have not been placed by that time. <br /> The attached report contains a discussion of the study and our recommendations. Please contact <br /> us if there are any questions regarding this report or if we can be of further assistance during the <br /> design and construction phases of this project. <br /> Respectfully submitted, <br /> G T H C NSU TANTS, INC. <br /> . obert Ward, P.E. <br /> Associate <br /> DRW:aIt <br />