11230 19TH DR SE 2016-11-18 - Laserfiche WebLink

June 3, 2015 ES-3588.01 � Earth Solutions NW«� Farth Solutions NW ��c: ° :_,CC,iI'.f�lillC:ti r11511iC'CYiil;� • t..:�:7r15trUCti�.:;tl �11c�nil0�'i�l��.. • E�1vi�:�rmr�tt<tl Scic'r:�c; Polygon NW PO Box 1349 Bellevue, Washington 98009 Attention: Mr. Eddy Stevens Subject: Final Report Building 7, Lots 7.1 thru 7.6, Building 8, Lots 8.1 thru 8.4 and Building 19, Lots 19.1 thru 19.8 Construction Monitoring and Consulting Services Silver Lake Center Building 7- 11220 thru 11230 — 19th Drive Southeast Building 8- 11217 thru 1'i231 —'i9�h Drive Southeast Building 19 - 110'18 thru 11032 — 20th Drive Sautheast Everett, Washington Dear Mr. Stevens: In accordance with your request, Earth Solutions NW, LLC (ESNW) provided construction monitoring �nd consulting seniices at the s�ihject site. O�ir services incl��cie�l pro�ric�jng ei��ii� observaYions and testing on a part-time from February 13 to April 27, 2015. Our representatives made eight 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 24 field density tests in accordance with ASTM Test Designation D2922 (Nuclear Gauge Method). Two representative soi! samples were returned to our laboratory for analysis of the maximum dry density and opfimum 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 slab backfill. Based on our observations and testing, the earthwork construction was accomplished in accordance with the project plans and our geotechnical recommendations. 18fi i - 1:iGth F'lac e �. , Siii°z� _J"; • [�� ctiiiti. ;1' ir ii��_3 ° i=ilr? .'�.) 4-;? ; > 'r.i\ "�1?�, �a�i'•) . � I ) � �:.