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November 6, 2015 <br />ES-3588.01 <br />�r . , , :. Ear�h <br />Sotutions' <br />N 1ltsk�G <br />'_ ..; , , . :: :..x; <br />Earth Solutions NW i_�.c: <br />• �:cotc,c:hni�_.al En�;ineerin'�; <br />° C�_�rrmt�aiicti�m �'��f�mitorios.; <br />• (�m✓irt�nmr�ni:�! tirit°n�,,�s <br />Polygon NW <br />PO Box 1349 <br />Bellevue, Washington 98009 <br />Attention: Mr. Thomas Heinz <br />Subject: Final Report— Building 18, Lots 18.1 thru 18.7 <br />Construction Monitoring and Consulting Services <br />Silver Lake Center <br />11102, 11106, 11110, 11114, 11118, 11122, and 11126 — 2t?t" Drive Southeast <br />Everett, Washington <br />City of Everett Permits C1411-087, C1411-088, C1411-089, C1411-090, <br />C1411-091, C1411-092, C1411-093 <br />Dear Mr. Heinz: <br />In accordance with your request, Earth Solutions NW, LLC (ESNW) provided construction <br />monitoring and consuiting services at the subject site. Our services included providing onsite <br />observations and testing on a part-time from March 3Q ta May 19, 2015. �ur representatives <br />made three site visits to observe building foundation subgrade and test building slab backfifl. <br />Our representative observed building foundation subgrade to be dense and suitable for support <br />of the proposed structure. <br />Our representative conducted 14 field density tests in accordance with ASTM Test Designation <br />D2922 (Nuclear Gauge Method). Two representative soil sampie was returned to our <br />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 observations and testing, the earthwork construction was accomplished in <br />accordance with the project plans and our geotechnical recommendations. <br />1`,(1�� i ;�,tii f'la, r '�'.E., �.,itt� Zl;l ° Is:�ll -�uc, 4�iy'3fiU(i'� , , � t ! „ . <br />, _ � a �, �� �; ; ) � I-.� r. '+�k�3 -i�; 1 � � <br />,> <br />