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April 21, 2016 <br />ES-3588.0� <br />� ' Earth <br />.����Solution's� <br />NW�� <br />Earth Solutions NW ��c <br />• C�eotechnicai Engineering <br />• Construction hlonitoring <br />• Environmenral Scienres <br />Polygon Northwest <br />PO Box 1349 <br />Bellevue, Washington 98009 <br />Attention: Ms. Michelle Dittman <br />Subject: Final Report — Building 4 <br />Construction Moni#oring and Consutting Services <br />Silver Lake Center <br />2001, 2003, 2005, 2007 � 2009 — 113t�' Place Southeast <br />Everett, Washington <br />City of Everett Permits C1411-023, C1411-422, C1411-021, C14�11-020, & <br />C1411-019 <br />Dear Ms. Dittman: <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 />�h��'(ti„`-�tf('���. �?nr� t^,�fijnry nll ^ �?%�ff�-tjm� �f!�"i �('^.^p"1"1hF'!' �, ���:� $n ����tolZl�/ �, �n�Fi. C?l!I' <br />representatives made four site visits to observe and test the building foundation subgrade, and <br />structural fill. <br />Our representative observed building foundation subgrade ta be dense and suitable for support <br />of the proposed structure. <br />Our representative conducted five field density tests in accordance with ASTM Test <br />Designation D2922 (Nuciear Gauge Method). �ne representafive soil sample was returned ta <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 indicate adequate <br />compaction of at least 95 percent at the tested locations of the building slab backfill. <br />Based on our abservations and testing, the earthwork cor�struction was accamplished in <br />accordance with the project plans and our geotechnical recommendations. <br />"18�5 - 1;r.;t1� f'lai�e N.E., S�iiYe 201 ° P,elfevue, b1?�� 9;Q05 '(4251 44y-4704 ° FAX (425� 4�+9-<17"I"I <br />