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`_r <br />December 15, 2015 <br />ES-3588.01 <br />Polygon Northwest <br />PO Box 1349 <br />Bellevue, Washington 98009 <br />Attention: Mr. Thomas Heinz <br />�� ��O,�CItIQ�1�S� <br />,.. <br />' NWtic <br />Earth Solutions NW ��� <br />• C;ecile�Niric�:: 1 n�;t;r>erins{ <br />° C����nstr�.�cli��i� l�ur:itr,rir;,' <br />• En�,-irorrm�ilCa� Sd:�_nct��s� <br />Subject: Final Report — Build�ng 13, Lots 93.1 thru 13.6 <br />Construction Monitoring and Consulting Services <br />Silver Lake Center <br />1920, 191$, 9 916, 'f 914, 1912, and 1910 — 112th Pface <br />Everett, Washington <br />City of Everett Permits C1411-065, C1411-064, C1411-063, C1411-062, <br />C1411-6'1, C1411-60 <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 �nd testing on a p�rt-time from April �4 to J�ir�e 1?_, ?_015. O�ar r�pr�sPntatives <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 far support <br />of the proposed structure. <br />Our representative conducted six field density tests in accordance with ASTM Test Designation <br />D2922 (Nuclear Gauge Method). One representative soil sample was returned to our <br />laboratory for analysis of the maximum dry densiiy and optimum moisture content in <br />accordance with ASTM D1557-02 (Modified Proctor}. Density test results indicate adequate <br />compaction of at ieast 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 />accardance with the project plans and our geotechnical recommendations. <br />1805 - 13fith Placc� N.E., Suii:e ZU I^ Bellcvut�, 1-Y7� 5)�30O5 m(�25) 4�4'.f-<k; f.?4 � F,�X (4"> ;) 4�9-�17 i1 <br />