1911 112TH PL SE 2017-01-13 - Laserfiche WebLink

� February 9, 2016 ES-3588.01 Polygon Northwest PO Box 1349 Bellevue, Washington 98009 Attention: Mr. Thomas Heinz (�..v r ;x `t ��`�� u ��►�� c► � �� , ,� �� ;��y�e�,��,t a-�� �.r �a�Rtii Sc�[c.i�iUr�S ��/ LLC a t �r�atechnical En�ine��rin�; � Ct;nstructior� Monitoring � (=nvirunmenial Sc:iericf:�s Subject: Final Report — Building 12, Lots 12.1, 12.2, 12.3, and 12.4 Construction Monitoring and Consulting Services Silver Lake Center 1905, 1947, 1909, and 1911 —'I 12th PEace Southeast Everett, Washington City of Everett Permits C1 411-0�3, C1 411-084, C'! 411-0�5, and C1 411-886 Dear Mr. Heinz: In accordance with your request, Earth Solutions NW, LLC (ESNW) provided construction monitoring and consulting services at the subject site. Our services included providing onsite observations and testing on a part-time from April 28, 2015 to ,lanuary 8, 2016. O�cr representatives made five site visits to observe or test building foundation subgrade, building slab backfill, and pervious pavemenfi preparation. Our representative observed building foundation subgrade to be dense and suitable for support of the proposed structure. Our representative conducted eight field density tests in accordance with ASTM Test Designation D2922 (Nuclear Gauge Method). Two representative soil samples were returned to our laboratory for analysis of the maximum dry density and optimum moisture content in accordance with ASTM D1557-02 (Modified Proctor). Density test results indicate adequate compaction of at least 95 percent at the tested locations of the building sfab backfifl. 4ur representative observed the contractor prepare the driveway for pervious pavement according to the specification in the designed plans. In accordance with the designed plans, our representative conducted the bucket test ar� the pervious pavement and observed it to drain as intended. �1805 - T:SFiE�t i i�t� �� N.E., �uitc� �i.31 � [�rtll�. t�r. �;!i1 9��1;t � '��fi2��i) �� +•'t;-1 � FAX ( r1!i} .;,i�3--�7�11