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GeoTest Services, Inc. <br />4320 Thomson Avenue, Everett, WA <br />§-- <br />April 12, 2019 <br />Project No.19-0050 <br />services specifically exclude providing recommendations for foundations, retaining <br />walls, rockeries, pavements, floor slabs, infiltration rates, seasonal groundwater <br />monitoring, or similar design elements. GTS can provide these services as part of a <br />separate service agreement. <br />Geotechnical Consultation and Construction Monitoring <br />recommends <br />We also recommend that geotechnical construction monitoring services be provided. <br />These services should include observation by GTS personnel during structural fill <br />placement, compaction activities and subgrade preparation operations to confirm <br />that design subgrade conditions are obtained beneath the proposed building. <br />Periodic field density testing should be performed to verify that the appropriate <br />degree of compaction is obtained. The purpose of these services is to observe <br />compliance with the design concepts, specifications, and recommendations of this <br />report. In the event that subsurface conditions differ from those anticipated before <br />the start of construction, GeoTest Services, Inc. would be pleased to provide revised <br />recommendations appropriate to the conditions revealed during construction. <br />GTS is available to provide a full range of materials testing and special inspection <br />during building construction as required by the local building department and the <br />International Building Code. This may include specific construction inspections on <br />materials such as reinforced concrete reinforced masonry wood framing and <br />structural steel. These services are supported by our fully accredited materials testing <br />laboratory. <br />USE OF THIS REPORT <br />GeoTest Services, Inc. has prepared this report for the exclusive use of Williams <br />Investments and their design consultants for specific application to the design of the <br />proposed residence located at 4320 Thomson Avenue in Everett, Washington. Use of <br />this report by others is at the user's sole risk. This report is not applicable to other sites. <br />Our services are conducted in accordance with accepted practices of the <br />geotechnical engineering profession; no other warranty, express or implied, is made <br />as to the professional advice included in this report. <br />Our site explorations indicate subsurface conditions at the dates and locations <br />indicated. It is not warranted that these conditions are representative of conditions <br />at other locations and times. The analyses, conclusions, and recommendations <br />contained in this report are based on site conditions to the limited depth and time of <br />our explorations, a geological reconnaissance of the area, and a review of previously <br />published USGS geological information for the site. If variations in subsurface <br />conditions are encountered during construction that differs from those contained <br />10 <br />