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April 21, 2016 <br />ES-3588.01 <br />-� <br />Solutions' <br />NWuc <br />Earth Solutions �lW �LC <br />• Geotechnicai En�;ineering <br />• (:onstruction hlonitoring <br />a Environmental Scienc�s <br />Polygon Northwest <br />PO Box 1349 <br />Bellevue, Washington 98009 <br />Attention: Ms. Michelle Dittman <br />�u�jecf: f�inal I�epor� — �uileiing � <br />C�nstruction �1lonit�ring �rad �or��ut�ing �ervace� <br />Silver Lake Center <br />2001, 2003, 2005, 2007 � 2009 —113t�' Place Southeast <br />Everett, Washington <br />Ci#y oi Ev�rett Permi#� C3411v023, C'P411�022, C1411-02'9, C14'P1-020, 8� <br />C1411-019 <br />Dear Ms. Dittman: <br />In accordance wi#h your request, Earth Solutions NW, LLC (ESNW) provided construc#ion <br />monitoring and consulting services at the subject site. Our services included providing onsite <br />observations and testing on a part-time from December 2, 2015 to January 4, 2016. Our <br />representatives made four site visits to observe and test the buiiding foundation subgrade, and <br />structural fill. <br />�ur representative observed building faundation subgrade to be dense and suitable for suppart <br />of the proposed structure. <br />Our representative conducied five field density tests in accordance with ASTM Test <br />Designation D2922 (Nuclear Gauge Method). �ne representative soil sample was returned to <br />our 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 backfi!(. <br />Based on our observations and testing, the earthwork construction was accomplished in <br />accordance with the project plans and our geotechnical recommendations. <br />1805 - 136th f'lac:e N.[., Si.iite ZOT • E�ellevu�, �h�:�i 9�C)Q5 •;425) 44�3-�70<} • FAX (425) 449-�1711 <br />p <br />