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a s s o c i a t e d <br />r <br />earth sciences <br />�.p <br />i t cs o r f� o r a 'I e d <br />February 4, 2020 <br />Project No. 20180567EO02 <br />Airport 100 LLC <br />C/O Kelly Stephens <br />PO Box 1243 <br />Edmonds, Washington 98020 <br />Subject: Ultrablock Wall Details <br />Stephens Everett Property <br />Everett, Washington <br />Dear Ms. Stephens <br />Associated Earth Sciences, Inc. (AESI) is pleased to present the attached detail for the proposed <br />tiered Ultrablock retaining wall system for the proposed above -referenced property. This detail is <br />based on our understanding of the project from discussions with you and review of the "Preliminary <br />Grading and Utility Plan" (Sheet 1), prepared by David Evans and Associates, Inc. and dated April 24, <br />2019. <br />We appreciate the opportunity to be of continued service to you on this project. Should you have <br />any questions regarding the attached documents, please call us at your earliest convenience. <br />Sincerely, <br />ASSOCIATED EARTH SCIENCES, INC. <br />Kirkland, Washington <br />4Kt erriman, P.E. <br />Senior Principal Engineer <br />Attachments: Figure 1: Ultrablock Wall <br />KDWms - 20180567EO02-2 <br />. Kirkland Office 1911 Fifth Avenue I Kirkland, WA 98033 P 1425.827.7701 <br />Mount Vernon Office 1 508 S. Second Street, Suite 1011 Mount Vernon, WA 98273 P 1425.827.7701 <br />Tacoma Office 11552 Commerce Street, Suite 102 1 Tacoma, WA 98402 P 1253.722.2992 <br />www.aesgeo.com <br />