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I 741 Marine Drive <br /> r'hzao <br /> Bellingham,WA 98225 360 733_7318 <br /> _ V > 2 Arlington, <br /> Avenue NE <br /> 23 T88 F?E-F 60 <br /> y �y Arlington,WA 98223 888 251_5276 360 733 7418 <br /> ' November 16, 2018 <br /> Job No. 18-0770 <br /> I Snohomish County Facilities Management er0e <br /> 3300 Rockefeller Avenue ll Q1j <br /> Everett, Washington 98201 II JUG/ <br /> °3 2020 D <br /> IAttn: Mr. Jeff Hencz Cj��© 'E• <br /> Re: North Puget Sound Behavioral Health —Treatment Center Addition tt Ser • <br /> vlcTT <br /> 1 <br /> 2801 10th Street <br /> Everett, Washington 98201 <br /> IDear Mr. Hencz, <br /> As requested, GeoTest Services, Inc. (GTS) is pleased to submit this report summarizing <br /> I the results of our geotechnical engineering investigation for the above-referenced project. <br /> The purpose of this evaluation was to establish general subsurface conditions beneath <br /> the site from which conclusions and recommendations for project design could be <br /> Iformulated. Specifically, our scope of services included the following tasks: <br /> • Exploration of soil and groundwater conditions underlying the site by conducting a <br /> total of four hollow-stem auger exploratory borings in the project vicinity. <br /> I <br /> • Laboratorytestingon representative samples in order to classifyand evaluate the <br /> P <br /> engineering characteristics and infiltration potential of the soils encountered. <br /> I • Provide this written report containing a description of the general geologic <br /> conditions, subsurface soils and groundwater conditions. Also presented in this <br /> I report are our findings and recommendations pertaining to site preparation and <br /> earthwork, fill and compaction, wet weather construction and seismic design <br /> considerations. Included within these recommendations is a discussion of post- <br /> !! construction settlement, slab-on-grade construction, drainage, resistance to lateral <br /> loads, temporary and permanent slopes, utilities, geotechnical consultation and <br /> construction monitoring. <br /> IPROJECT DESCRIPTION <br /> I The subject property is currently occupied by the Denney Juvenile Justice Center campus. <br /> GTS understands that there are plans to construct a building addition to this existing <br /> campus. The proposed area of addition is currently developed with driveway access, <br /> automobile parking, and landscape features. The parcel is approximately 9-acres in size <br /> Iand is located in an urban setting within the City of Everett, Washington (Vicinity Map, <br /> Figure 1). The new addition is anticipated to be a two-story building and is to contain <br /> conventional perimeter or spread footings, slab-on-grade floors and steel framing <br /> 1 <br /> elements. GTS was provided conceptual site plans by the Snohomish County Facilities <br /> Management prior to the composition of this report. GTS had not been provided with <br /> structural loads, but it is expected that the building loads will be light to moderate. <br /> I <br /> IPage 1 of 17 <br />