5304 EAST DR Geotech Report 2022-10-25

COBALT GEOTECHNICAL INVESTIGATION GE o S c I E N c e S EVERETT,WASHINGTON December 5,2019 9.o Construction Field Reviews Cobalt Geosciences should be retained to provide part time field review during construction in order to verify that the soil conditions encountered are consistent with our design assumptions and that the intent of our recommendations is being met.This will require field and engineering review to: • Monitor and test structural fill placement and soil compaction • Observe bearing capacity at foundation locations • Observe slab-on-grade preparation • Monitor subgrade preparation of roadways • Observe excavation stability Geotechnical design services should also be anticipated during the subsequent fmal design phase to support the structural design and address specific issues arising during this phase.Field and engineering review services will also be required during the construction phase in order to provide a Final Letter for - the project. 10.o Closure This report was prepared for the exclusive use of Joel Haack and his appointed consultants.Any use of this report-or the material contained herein by third parties, or for other than the intended purpose, should first be approved in writing by Cobalt Geosciences,LLC. The recommendations contained in this report are based on assumed continuity of soils with those of our test holes,and-assumed structural loads. Cobalt Geosciences-should be provided with final architectural and civil drawings when they become available in order that we may review our design recommendations and advise of any revisions,if necessary. Use of this report is subject to the Statement of General Conditions provided in Appendix A. It is the responsibility of Joel Haack who is identified as"the Client"within the Statement of General Conditions, and its agents to review the conditions and to notify Cobalt Geosciences should any of these not be satisfied. 12 PO Box 82243 Kenmore,WA 98028 cobaltgeoagmail.com 206-331-1097