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February 9, 2016 <br />ES-3588.01 <br />Polygon Northwest <br />PO Box 1349 <br />Bellevue, Washington 98009 <br />Attention: Mr. Thomas Heinz <br />�4 4 <br />� j� "r#� � <br />� ,� <br />,��'� ���4iU��Q��t; <br />�� ���� �'���� <br />}vY7k; '? i �`� .. <br />-1: ,n <br />� � . ����-cv <br />� a. _. <br />��ith SUl�tic�YiS �1� LLC: <br />� t;�otechni��.�l En�;riecrinb <br />� Ct`>rZstruc,ion t�lonitoring <br />� Envirorimenial St�iences <br />Subject: Final Report — Building 12, Lots 12.1, °12.2, 12.3, and 12.4 <br />Gonstruction Monitoring and Consulting Services <br />Silver Lake Center <br />1905, 1907, 1909, and 1911 — 1'i2t" PEac� Sautheast <br />Everett, Washington <br />City of Everett Permits C1 411-083, C1 411-0�4, C'B 411-0�5, and C1 411-086 <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 April 28, 2015 to January 8, 2Q16. Our <br />representatives made five site visits to observe or test building foundation subgrade, building <br />slab backfill, and pervious pavemenfi preparation. <br />Our representative observed building foundation subgrade to be dense and suitable for support <br />of the proposed structure. <br />Our representative conducted eight field density tests in accordance with ASTM Test <br />Designation D2922 (Nuclear Gauge Method). Two representative soil samples were returned <br />to our laboratory for analysis of the maximum dry density and aptimum maisture content in <br />accordance with ASTM D1557-02 (Modified Proctor). Density iest results indicate adequate <br />compaction of at least 95 percent at the tested iocations af the building slab backfill. <br />Our representative observed the contractor prepare the driveway for pervious pavement <br />accarding to the specification in the designed plans. In accordance with the designed plans, <br />our representative conducted the bucket test on fihe pervious pavemenf and observed it to <br />drain as intended. <br />ft5(?� - l.i�iEh I'i,tr � N.E., tiUl€i' 2t)i � fi�:`!i; t.1t.:; 1,';1 z}30�)'� ,��:"_r} -� 1�) lr(;4 � i:AX ('�'il ::},.1��...'t: 1'( <br />