3431 NASSAU ST 2018-01-02 MF Import

04/14/04 07:15 FA% 4253476588 CI1nA EVER[:"PI' Z011/032 Geologic Investigation and Georechniral lf�mcering Xerxut 00-02-20 NF Comer 35" St. and Nassau SI. Everett, Washington 4.0 CONCLUSIONS AND RECOMMENDATIONS 4.1 Seasonal Working Conditions The recommendations contained in this report arc tot dry weather construction conditions. Soil underlying this site are moisture sensitive and once disturbed may exhibit diminished or altered engineering characteristics. Due to the potential of encountering soil related problems during wet weather development, wet weather construction is generally not recommended. If site work is undertaken during extended periods of wet weather, additional costs should be anticipated relating to work on and with moisture sensitive soil. If exposed surficial or shallow subsurface soil becomes moisture disturbed during site work, we recommend that GES, Inc. be contacted to develop appropriate recommendations given the observed conditions and desired end result. Certain elements of the project may not be able to be completed without considerable effort and additional expense under these circumstances. 4.2 Site Preparation Based on the supplied site plans as of the writing of this report, we understand that site preparation will include some clearing, grubbing and the excavation of uncontrolled fill and soil for the placement of building foundations. Clearing and grubbing will include the removal of a couple of trees and small amounts of surficial vegetation Rough grading of the building envelope will involve the removal of uncontrolled fill from the site — in most areas over IS 11. in depth The uncontrolled fill contains significant amounts of deleterious materials Side slopes of excavations should be considered unstable. Site preparation work should be undertaken only by experienced contractors that are familiar with working around deep excavations and with uncontrolled fills. The earthwork contractor should be required to read this geolechnical report. GES, Inc. is available to answer any questions that the contractor may have regarding this report and its ieconunendations. Work around all excavations on the site should carefully follow all pertinent recommendations contained in this report. 7 GES, Inc.