5828 GLENWOOD AVE CINGULAR WIRELESS ANTENNA Geotech Report 2022-10-25 (2)

Adapt Engineering PROJECT DESCRIPTION We understand that current development plans call for the replacement of an existing wood telecommunication tower with a new steel telecommunications tower and an associated cellular equipment building or cabinet pad.The site is located at 5828 Glenwood Avenue in Everett,Washington; as shown on the attached Location/Topographic Map (Figure 1). The site may be accessed west of Glenwood Ave. The existing and proposed site features, in relation to our exploration, are shown on the attached Site&Exploration Plan(Figure 2). It should be emphasized that the conclusions and recommendations contained in this report are based on our understanding of the currently proposed utilization of the project site, as derived from written and verbal information supplied to us by General Dynamics. Consequently, if any changes are made to the project, we recommend that we review the changes and modify our recommendations, if appropriate, to reflect those changes. DOCUMENT REVIEW As a part of our study,we reviewed the following maps and documents pertaining to the subject property and vicinity: United States Department of Agriculture,Natural Resources Conservation Service (Formerly SCS), Snohomish County,Washington Washington State Department of Natural Resources, 2008, Seattle Quadrant, Snohomish County, Washington, Washington State Geology Index. In addition, Adapt has reviewed the results of previous explorations accomplished in the immediate vicinity of the project. Our conclusions and recommendations are based in part or wholly on the information contained in these documents. Our geotechnical recommendations are based in part on the accuracy of these documents; Adapt assumes no responsibility for errors or omissions resulting from possible inaccuracies on these documents prepared by others. EXPLORATORY METHODS We explored surface and subsurface conditions at the project site on October 4, 2016. Our surface exploration consisted of a visual site reconnaissance. Our subsurface exploration consisted of advancing one test boring (designated B-1) to a maximum depth of approximately 41.5 feet below existing ground surface (bgs). The procedures used for subsurface exploration during our site visit are presented in the subsequent sections of this report. The location of the exploration advanced for this study is shown on the attached Figure 2. The specific location and depth of the exploration performed was selected in relation to the proposed site features, under the constraints of budget and site access. The boring location and other features shown on Figure 2 were obtained by hand taping from existing site features; as such, the exploration location shown should be considered accurate only to the degree implied by the measuring methods used. AT&T Mobility clo General Dynamics- October 10,2016 Adapt Project No.WA16-20654-GEO " 'f"