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• Evaluate the compaction of the building subgrade by conducting in situ density and moisture <br /> content measurements as well as hand probing <br /> • Evaluate the compaction of the base rock beneath the building <br /> • Verify that a vapor barrier was installed beneath the building <br /> Members of our geotechnical staff observed the geotechnical-related tasks identified above on an <br /> intermittent and on-call basis. Their observations are summarized in field reports,which were <br /> provided to the design and construction team members and are on file in our office. <br /> To the extent observed, the construction outlined above was conducted in general conformance <br /> with the intent of the project plans, specifications, and our geotechnical engineering <br /> recommendations. <br /> ♦ ♦ ♦ <br /> We appreciate the opportunity to work with you on this project. Please call if you have questions <br /> concerning the information provided. <br /> Sincerely, <br /> V: 477 <br /> GeoDesign, Inc. c' 51st .en, <br /> t' - . <br /> Ryan {, awrence, P.E. (Oregon) 26403 <br /> Senior Project Engineer '4-61s r' <br /> It srAL ' <br /> Signed 07/27/2018 <br /> Scott V. Mills, P.E., L.G. <br /> Principal Engineer <br /> cc: Eddy Stevens, Polygon Northwest Company(via email only) <br /> Juan Espinoza, Polygon Northwest Company(via email only) <br /> RTL:SVM:sn <br /> One copy submitted(via email only) <br /> Document ID: Polygon-128-03-072718-geol-compliance-Bldg_11.docx <br /> ©2018 GeoDesign,Inc. All rights reserved. <br /> G EODESIGN? 2 Polygon-128-03:072718 <br />