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� DAVID L. NELSON AND ASSOCIATES, INC. <br /> Consulting Engineering Geology <br /> 206/788-5612 <br /> 13424 Chain Lake Road Monroe,Washington 98272 206/794-4332 <br /> September 22, 1987 I D, � �v L5 � U � I n ' <br /> Project No. 11187 � nl U <br /> lJ U S E P 2 3 1 9 8 7 <br /> Mr. David G. Hansen <br /> 1054 North Park Drive EVERETT BUILDING DEPT. <br /> Everett, Washbngton 98203 <br /> Reference: Consultation Services-Soils <br /> Proposed Residence at 3201 5hure Avenue <br /> Everett, Washington <br /> Dear Sir; <br /> This is to serve as a report of site geotechnical consultation services with <br /> respect to foundation excavation for the above referenced residence development. <br /> We visited the site area on September 18 and 21, 1987 at your request to ob- <br /> serve site conditions. On our first visit, we observed an excavation within the <br /> site which was not completely excavated into suitab'_� ground for foundation <br /> placement. Ne made r•e�unmendaLions f,�r further ex;.avation at that time, and on <br /> our later visit we found our recortmendations had been generally followed. <br /> The soils within the site cons`:t of moderately dense to dense fine silty sand <br /> and sandy silt (Whidbey Formation), generally considered suitable for use as <br /> foundation soils fcr residences. No ground water was observed. <br /> Opinions and Recommendations <br /> Earthwork within the excavation area for proposed residence foundation placement <br /> has been generally performed into the native soils, and appears suitable for <br /> placement of residence foundations. <br /> Some pockets of fill/wall backfill/compressed peat occur within the excavation. <br /> These pocket areas are relatively small, and should not present a problem for <br /> stability of the residence, as the installed foundations will probably span <br /> these areas effectively. Any loose residual soils could be removed by hand. <br /> Adeauate drainage should be provided around the resiaence area, including roof , <br /> and foundation drains, independantly directed into the main storm drainage system <br /> or properly daylighted downslope. - j <br /> Thank you for the opportunity to be of service, and trust the above information <br /> is of use. If you have any questlons, feel free tc call on uss:tO��r►}�"���1fIE'h9� <br /> �n <br /> Sincer �, <br /> DAV L. N SOCIATES, INC. ���/ , � � �O'� � <br /> I , /Ut.G{� s � � <br /> ' . s <br /> avid L. Nelson, PG J. Keith Cross, PE'•� <br /> Professional Engineering Geologist Geotechnical Engin2� <br /> to David L. Nelson &•� � c- <br /> DLN:kmn `•..... <br />