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(11/7:: ,„, <br /> DE SIGNv {€ <br /> August 23, 2017 <br /> Polygon Northwest Company <br /> 11624 SE 5th Street, Suite 200 <br /> Bellevue, WA 98005 <br /> Attention: Michelle Dittman <br /> Building 1 Summary Letter <br /> Geotechnical Construction Observation Services <br /> Everett Riverfront Eclipse Site <br /> Everett, Washington <br /> GeoDesign Project: Polygon-128-03 <br /> 3302 31St Drive(Permit No. C1606-069) <br /> 3304 31" Drive(Permit No. Cl 606-070) <br /> 3306 3151 Drive (Permit No. Cl 606-071) <br /> 3308 31" Drive (Permit No. Cl 606-072) <br /> 3310 3151 Drive (Permit No. C1606-073) <br /> 3312 3151 Drive (Permit No. C1604-074) <br /> 3314 3151 Drive (Permit No. C1604-075) <br /> This letter provides a summary of GeoDesign, Inc.'s geotechnical construction observation <br /> services for Building 1 of the Everett Riverfront Eclipse Site in Everett, Washington. GeoDesign <br /> prepared a geotechnical report for this project' that summarized the site conditions and <br /> provided our geotechnical recommendations. We received a set of building construction plans <br /> for the project that were prepared by Core Design and dated July 2015. <br /> Members of our geotechnical staff visited the site on a periodic basis between May 2015 and <br /> January 2017 to perform the following tasks: <br /> • Observe the placement of structural fill and evaluate the compaction of the fill by conducting <br /> in situ density and moisture content measurements and by observing proof rolling <br /> • Observe the placement of surcharge material and install settlement markers <br /> • Monitor the surcharge settlement <br /> • Observe the installation of ground improvement trenches <br /> 'GeoDesign,Inc.,2017. Report of Geotechnical Engineering Services;Everett Riverfront Eclipse Site;Everett,Washington, <br /> dated March 16,2017. GeoDesign Project: Polygon-128-01 <br /> 9450 SW Commerce Circle,Suite 300 I Wilsonville,OR 97070 1503.968. 87 www.geodesigninc.com <br /> 1/9 <br />