6700 HARDESON RD BASE FILE 2018-01-01 MF Import

d d�" �!�'. �A� � / • ��1i,�1�1/1+�� ... " .... � September 25, 2001 Inuacorp 2606 Second Avenue, Suite 300 Seattle, Washington 98121-1473 Attention: Mr. Ed Wilson Subject: Final Latter of Construction Monkorkp Swvk�s SNway Tract Z Lot 1, BuMdinp B 670C NaMeson Rosd Ewxatt, Wahington P�mh #�130108-065 Reference: Earth Consultants, inc. Geotechnical Engineering Study E-3592-620, dated July 16, 1998 Dear Mr. Wilson: E-369;:-832 As raquested, we have prepared this letter summarizing our construction monitorinp services at the subject site. Our services included providing on-site observatlon�, performinp field densiry tests, and providing the necessary laboratory tests on fill samples as required for foundation bearing soils and building area fill. We previously prepered the referenced geotechnical engineering study for this project. During greding operations, our representatives were on-site on a part-time basis. Between November 29, 2000 and April 20, 2001 our representatives made e total of eleven (11) site visits. During this period, sixteen (16) field density tests were conducted on sbuctural fllis. Our fieid density tests were performed in accordance with ASTM Test Designation D-2922 (Nuclear Gauge Methodl. One representetive soil sbmple was retumed to our laboratory for maximum dry density tests in accordance with ASTM D-1557-91 (Modified Proctor�. Besed on the results of our tests, the structural fill tested was adequately compacted to the requirements of structural fill. ECI representatives also observed the foundation bearing soils. The bearirp soils consist ef medium dense to dense silty sand with gravel and should provide adequate support for the design two thousand five hundred (2,500) pound per square foot design load. 1805 • 136th Place N.E., Suite 201, Bellewe, Washington 98005 Bellevue (425) 643-3780 FAX (425) 746�0860 Toll Free (888) 739-6670