6101 ASSOCIATED BLVD BASE FILE 2017-06-05

GEOTECHNICAL ENGINEERING STUDY UNDERWOOD GARTLAND EVERETT ASSOCIATED BOULEVARD AND INDUSTRY STREET EVERETT, WASHINGTON ES-2232.02 INTRODUCTION General This geotechnical engineering study was prepared for the proposed light industrial warehouse development to be constructed east of Associated Boulevard in Everett, Washington (see Vicinity Map, Plate 1). The purpose of this study was to review current development plans and prepare geotechnical recommendations for the proposed development. Our scope of services for completing this geotechnical engineering study included the following: • Reviewing previously acquired subsurface data for purposes of characterizing soil and groundwater conditions. • Observing and documenting earlier 2012 earthwork activities associated with the current building pad construction. • Reviewing the current development plans for building construction and related infrastructure improvements. • Preparation of this geotechnical engineering study. The following documents/resources were reviewed as part of our report preparation: • GeoEngineers Boring and Test Pit Logs (Nov. 2011). • David Evans and Associates, Site Preparation and Grading Plan. • Geologic Map of the Everett Quadarangle, Minard 1985. Project Description Development plans involve construction of two warehouse structures and related site infrastructure improvements. As previously described, two building pads (roughly 200,000 square feet each) were established during rough grading activities completed in 2012. The approximate limits of the site and building footprint areas are depicted on Plate 2 (Boring and Test Pit Location Plan). The proposed warehouse structures will incorporate typical concrete tilt-up panels and slab-on-grade floors. A mezzanine level may also be incorporated into the building structures. Building loads are expected to be as follows: • Perimeter footing loads 3 to 6 kips • Column loads 80 to 120 kips • Slab-on-grade loads 350 psf