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> <br />Y <br />November 6, 2015 <br />ES-3588.01 <br />Polygon NW <br />PO Box 1349 <br />Bellevue, Washington 98009 <br />Attention: Mr. Thomas Heinz <br />-�:1...� - . <br />� > Earth <br />_ �Solutions <br />NW«< <br />E�rth Solutions f�1/1� ��.c <br />• Geotechnical Engineerin� <br />° �:C>ilyYiilCtiori �`vlpnitori;t�; <br />° Fnvironmental 5cience� <br />Subject: Finaf Report — Building 18, Lots 18.1 thru 18.7 <br />Construction Monitoring and Consulting Services <br />Silver Lake Center <br />11102, 11106, 11110, 11114, 1111 �, 1°I 122, and 11126 — 20t" Drive Southeast <br />Everett, Washington <br />City of Everett Permits C1411-087, C1411-088, C1419-089, 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 consulting services at the subject site. Our services included providing onsite <br />observations and testing on a part-time from March 30 ta May 19, 2015. Our representatives <br />made three site visits to observe building foundation subgrade and test building slab backfi(I. <br />Our representative observed building foundation subgrade to be dense and suitable for support <br />of the proposed str�uciure. <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 />18Q5 �I �Fith i'iac�� N.t ., Si.;ite� 2{Tl ° (3ellevuc, Vti�A 9�CtC3 i � (-�2S) :49 �'°7O-4 � F.4X !� �>i �<}y_�},l�i <br />�' <br />