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� i <br /> � <br /> � � <br /> � <br /> June 3, 2015 Earth Solutions NW LLC � <br /> ES-3588.01 � <br /> • Geotechnical Engineering , <br /> • Construction Monitoring <br /> • Environmental Sriences <br /> Polygon NW <br /> PO Box 1349 <br /> Bellevue, Washington 98009 <br /> Attention: Mr. Eddy Stevens ; <br /> Subject: Final Report— Building 3, Lots 3.1 thru 3.5 <br /> Construction Monitoring and Consulting Services <br /> Silver Lake Center <br /> 2006 thru 2016 — 113th Place Southeast <br /> Everett, Washington <br /> ��I. <br /> Dear Mr. Stevens: ' �' <br /> ,_� <br /> In accordance with your request, Earth Solutions NW, LLC (ESNW) provided construction <br /> monitoring and consulting services at the subject site. Our services included providing onsite <br /> observations and testing on a part-fime from January 14 to February 17, 2015. Our <br /> representatives made three site visits to observe building foundation subgrade and test building <br /> slab backfill. ' <br /> Our representative observed building foundation subgrade to be dense and suitable for support <br /> of the proposed structure. <br /> Our representative conducted four field density tests in accordance with ASTM Test ' <br /> Designation D2922 (Nuclear Gauge Method). One representative soil sample was returned to <br /> our laboratory for analysis of the maximum dry density and optimum moisture content in ' <br /> accordance with ASTM D1557-02 (Modified Procfor). Density test results indicate adequate ', <br /> compaction of at least 95 percent at the tested locations of the building slab backfilL '. <br /> Based on our observations and testing, the ear�hwork construction was accomplished in <br /> accordance with the project plans and our geofechnical recommendations. <br /> �; i:i <br /> -�` <br /> :�_;_. <br /> 1;O5 - 736th Pl�tce N.E.,tiuil�',10'I • 13ellevue,1ti'A 9L'005 • i'�">.ii 449-4704 • fAti{425)dd9-4717 <br />