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v <br /> February 6, 2015 Earth Solutions NW LLC <br /> ES-2232.02 <br /> • Geotechnical Engineering <br /> Underwood Gartland Everett, LLC <br /> • Construction Monitoring <br /> P.O. Box 3513 • Environmental Sciences <br /> Bellevue, Washington 98009 <br /> Attention: Mr. David Gartland <br /> Dear Mr. Gartland: <br /> Earth Solutions NW, LLC (ESNW) is pleased to present this report titled "Geotechnical <br /> Engineering Study, Underwood Gartland Everett, Associated Boulevard and Industry Street, <br /> Everett, Washington". The subject property is roughly 30 acres, and was previously mined for <br /> sand and gravel, and subsequently filled. In the summer of 2012, site grading throughout the <br /> reclaimed gravel pit was completed to establish two building pads with footprint areas of roughly <br /> 200,000 square feet. ESNW provided geotechnical services and documented soil compaction <br /> during the earthwork. The completed building pad areas were subsequently capped with <br /> crushed rock, and the site has remained inactive since completion of the 2012 earthwork <br /> activities. Additionally, during the summer 2012 timeframe, adjacent descending slope areas <br /> owned by the sand and gravel company (Cemex) were re-graded and stabilized. Current <br /> development plans include light industrial warehouse construction at the location of the two <br /> existing building pads. Site infrastructure improvements will include underground utility <br /> installations, stormwater facilities, and pavement areas. <br /> In our opinion, the proposed warehouse development is feasible from a geotechnical <br /> standpoint. The warehouse structures can be supported on conventional continuous and <br /> spread footings bearing on at least two feet of structural fill. As determined necessary by the <br /> geotechnical engineer during construction, re-compaction of existing structural fill soils or <br /> overexcavation and replacement with new structural fill may be recommended. The building <br /> slab should be supported on a firm and unyielding subgrade comprised of at least one foot of <br /> structural fill. Recommendations for earthwork, foundation subgrade preparation, and other <br /> pertinent geotechnical recommendations are provided in this study. <br /> We appreciate the opportunity to be of service to you on this project. If you have any questions <br /> regarding the content of this geotechnical engineering study, please call. <br /> in ere r <br /> EARTH SOLUTyONS NNW, C <br /> �I <br /> Ra ond".,'c <br /> Y C /as E '� <br /> -Principal <br /> 1805 - 136th Place N.E., Suite 201 Bellevue,WA 98005 (425)449-4704 FAX(425)449-4711 <br />