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/// <br /> NED <br /> • ES1GNY \t„ <br /> i= <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 6 Summary Letter <br /> Geotechnical Construction Observation Services <br /> Everett Riverfront Eclipse Site <br /> Everett, Washington <br /> GeoDesign Project: Polygon-128-03 <br /> 3322 31" Drive (Permit No. C1604-068) <br /> 3324 31" Drive (Permit No. C1604-069) <br /> 3326 315` Drive (Permit No. C1604-070) <br /> 3328 3151 Drive (Permit No. C1604-071) <br /> 3330 3151 Drive (Permit No. C1604-072) <br /> 3332 315` Drive (Permit No. C1604-073) <br /> This letter provides a summary of GeoDesign, Inc.'s geotechnical construction observation <br /> services for Building 6 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 /> • Evaluate the compaction of the building subgrade by conducting in situ density and moisture <br /> content measurements and hand probing <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 1503.968.8787 www.geodesigninc.com <br /> 7: <br /> `�L <br />