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✓ <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 />Earth :. <br />SOlutip�ts� <br />: N W <i� <br />Earth Solutions NW �_�.c <br />° Gcotechnical Fngineerin; <br />° Ci>n�tri�cti«r� �`vtonitori:��p; <br />• Environmr�ntal 5r..ier:cc� <br />Subject: Finai Report — Building 18, Lots 18.1 thru 18.7 <br />Construction Monitoring and Consulting Services <br />Silver Lake Center <br />11102, 11106, 11110, 11114, 'I 111 �, 11122, and '! 1126 — 20t" Drive Southeast <br />Everett, Washington <br />City of Everett Permits C1411-087, C1411-08�, C'1411-089, C1411-090, <br />C1411-091, C14'11-092, C1411-093 <br />Dear Mr. Heinz: <br />In accordance with your request, Earth Salutions 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 backfifl. <br />Our representative observed bui(ding faundation subgrade to be dense and suitable for support <br />ofi tl�e proposeu struc�u��. <br />Our representative conducted 14 field density tests in accordance with ASTM Tesf Designation <br />D2922 (Nuclear Gauge Method). Two representative soil sample was returned to our <br />laboratory for analysis of the maximum dry density and aptimum 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 backfifl. <br />Based on our observations and testing, the earthwork construction was accomplished in <br />accordance with the project plans and our geotechnical recommendatians. <br />1805 136th Piacr� �;.E., 5�itc� 2C;"I ° Rcllcvuc, 41/A 4f§OO�i '° ('425) ��9 ;7f)4 � FAX ����; 44�a-4711 <br />