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I <br />Navember 23, 2015 <br />ES-3588.01 <br />Polygon Northwest <br />PO Box 1349 <br />Bellevue, Washingtan 98009 <br />Attention: Mr. Thomas Heinz <br />Earth <br />4 5olutions: <br />NW«< <br />Earth Solutions NW �L� <br />a r;::f���ccl,�,�•�'�,cr�ii f ngine�erir�z:�, <br />° (_OCiSC�U.C(fOil h�101lli0YICl�? <br />• �i'tb"if(.>tlfr`:r'tl;:r� SCI�"1l".C'.� <br />Subject: Final Report — Building 9, Lots 9.1 thru 9.5 <br />Construction Monitoring and Consulting Services <br />Silver Lake Center <br />11218, 11216, 11214, 11212, and 11210 — 19t'' Drive Southeast <br />Everett, Washington <br />City of Everett Permits C°I411-025, C1411-026, C1411-027, C1411-028, <br />C1411-29 <br />Dear Mr. Heinz; <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 kestir7g on a pa�t-�irne iroiY�� June 1l io June 1�, 201�. C�ui� re�resei�iatives <br />made two site visits to observe and test the building foundation subgrade. <br />Our representative observed building foundation subgrade to be dense and suitable for support <br />of the proposed structure. <br />Our representative canducted five 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 Proctor). Density test resuits indicate adequate <br />compaction of at least 95 percent at the #ested locations of the building slab backfill. <br />Based an our observations and testing, the earthwork construction was accomplished in <br />accordance with the project plans and our geotechnical recommendations. <br />�� <br />, <br />� 150:? - 13Eith Place N.E, Sui`c� 1U1 • Be(ievue., bN/ti 9t30t)S • f4'?S) 449-4704 " FAX ;4Z5i q4'��..�711 ��' � � <br />