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' DAVID L. NELSON AND ASSOCIATES, INC. <br /> -�, Consulting Enginc�ering Geology <br /> ,+� 206/788-5612 <br /> �t 13424 Chain Lake Road Monroe,Washington 98272 206/7944332 <br /> L e_ <br /> w. <br /> � <br /> �i�s <br /> .o�w�r�� <br /> Apri 1 10, 1987 n �, �rj � L' �� L� L� <br /> ProJect No. 0387 ��� <br /> f,,''R 2 , 19R i <br /> First Realty -"" pF EVERETT <br /> �21 SE Everett Mall W.ay C17Y <br /> EvPre'ct, hasiiington 4E��7d pu�'ic W�rks Dei�t• <br /> Attention: Mr. Ray Fletcher <br /> Reference: Consultation/Insper,tion Services <br /> 3412 Bell Avenue <br /> Everett, Washinqton <br /> Gentlei�ien; <br /> Pursuant to your requests, we performed visual observation of the site area <br /> development on February 16 and April 9, 1987, to determine suitability of the <br /> construction as related to our report to you Gated January 26, 1987. <br /> Di�ring our initial observation on 2/i6/87, it was determined that some lateral <br /> movement of the 'ecology blocks' had occurred d:iring the course of excavation <br /> and replacement of the soils behind the wall. However, no apparent failures <br /> were observed, and the placement of the drainage materials was on-going. The <br /> recommendation to remove additional sloughing soils was given and performed <br /> during our observation at that time. Other recomnendations as giver, were also <br /> being followed as suggested. <br /> Our� latest observations indicated that the surface conditioning was performed <br /> as recommended, including sloping of the ground and proper dratnage. No further <br /> lateral movement of the 'ecology biocks' was noticed. <br /> [ia59� u;e�� �rir observations, it appears that a reasonable construction of the <br /> 'ecology block' wall , proper subsurface and surface dra�nage, and overail suils <br /> improvement has been achieved. Since the 'wall ' is not truely a structural wall, <br /> it appears that as much reduction of risk as possible has been implemented, but <br /> some future risk of failure does exist. <br /> Thank you for the opportunity to be of service, and trust. the above infromation <br /> is of use. If you have any questions, feel free to call on us at any time. <br /> Sincer ; <br /> DA 0 ASSOCIATES, INC. <br /> � <br /> cvid L. Nelson, PG <br /> Professional Enyineering Geologist <br /> DLN:kmn <br />