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June 3, 2015 <br />E5-35$8.01 <br />i <br />� ��1 <br />ar: '�'�r��', <br />�i�►�s,�. <br />�w«� <br />� <br />�:_�:..,.._ <br />;vd:.u� _ . <br />Earth Solutions NW �.�c <br />• Geotechnical Engineering <br />• Construction Monitoring <br />• Environmental Sciences <br />Potygon NW <br />PO Box 1349 <br />Bellevue, Washington 98009 <br />Attention: Mr. Eddy Stevens <br />Subject: Final Report —�uilding 3, Lots 3.1 thru 3.5 <br />Construction Monitoring and Consufting S�rvices <br />Silver Lake Center <br />2006 thru 2016 —113th Place Southeast <br />Everett, Washington <br />Dear Mr. Stevens: <br />tn accordance with your request, Earth Soiutions 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-iime 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 />Designatian 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 Proctor). Density test results indicaie 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 earthwork construction was accomplished in <br />accordance with the project plans and our geotechnical recommendations. <br />i;;OS - 73�th Plac:e :'�.E., Suite 21T1 �[3ell��vue, VVA �it;0;_i5 •;�,25} 44y-'+?04 � PAX (42>i d49-4717 <br />;�: <br />