1929 113TH PL SE 2017-01-13 - Laserfiche WebLink

June 3, 20�5 ES-3588.01 > ; Eart� ' � '�i B%� iL''y � �'�O�iltlOtiS'; NW«< Earth Solutions NW �Lc + Geotecnnical Engineerin� • C��nstruction �Vionitoring • 6��.�irr_tinrnenlal Sric�nces Polygan NW PO Box 1349 Bellevue, Washington 98009 Attention: Mr. Eddy Stevens Subject: Final Report Building 5, Lots 5.1 thru 5.7 Building 6, Lots 6.1 thru 6.4 Building 20, Lots 20.1 thru 20.8 Construction Monitoring and Consulting Services Silver Lake Center Building 5- 1904 thru 1928 — 113t" P1ace Southeast Building 6- 1919 thru 1929 — 113t" Rlace Southeast Building 20 - 11002 thru 11016 — 20th Drive Southeast Everett, Washington Dear Mr. Stevens: 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 January 26 to Aprii 3, 2015. Our representatives made 11 site visits to observe building foundation subgrade and test building slab backfill. Our representative observed building foundation subgrade to be dense and suitable for support of the proposed structures. Our representative conducted 50 field density tests in accordance with ASTM Test Designation D2922 (Nuclear Gauge Method). Three 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 Proc#or). Density test results indicate adequate compaction of at least 95 percent at the tested locations of the building slab backfill. Based on our observations and testing, the earthwork construction was accomplished in accordance with the project plans and our geotechnical recommendations. 1�05 - 13Fith PlacE� N.E., Suite 2CJ1 � E;e,le�.�ie, VV�1 980(�5 °(q251 44�) 47t)4 • FnX (�925) �149-471"i �