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January 5, 2016 <br />ES-3588.01 <br />Polygon Northwest <br />PO Box 1349 <br />Bellevue, Washington 98009 <br />Attention: Mr. Thomas Heinz <br />Y� , . <br />� '���,,.�arth <br />�. � luti�o�s� <br />' NW«< <br />Earth Solutions NW ��c <br />° Geotechnical En�ineering <br />° Construction Monitorin�; <br />• Cnvirt>nmentrl Scienc�es <br />Subject: Final Report — Building 14, Lots 94.1 thru 14.5 <br />Construction Monitoring and Consulting Services <br />Silver Lake Center <br />1930, 1928, 1926, 1924, and 1922 —112t" Place Southeast <br />Everett, Washington <br />City of Everett Permits C14'11-033, C1411-032, C1411-031, C1411-030, <br />C1411-24 <br />Dear Mr. Heinz: <br />In accordance with your request, Earth Solufions NW, LLC (ESNW) provided construction <br />monitoring and consulting services at the subject site. Our services inc(uded providing onsite <br />observations and testing on a part-time from Npril 14 ro July 28, 201 �. Our representatives <br />made six 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 conducted thirteen field density tests in accordance with ASTM Test <br />Designation D2922 (Nucfear Gauge Method). Two representative soil samples were returned <br />to our laboratory for anaiysis 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 />180`i - 13bth Placc� N.F., SuiTe 201 • tiellc_��,�,ie; V1-'A 9ffi)t7'� •(42i) 44�?-4iU4 ° FAX (42:;1 �14�3-47ii <br />