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Report of Geotechnical Exploration <br />West Armstrong Redevelopment Area, Ramsey, Minnesota <br />March 30, 2022 AMEPICAN <br />ENGIN=L;%Ltd+: I L511`-3 <br />AET Report No. P-0004952 <br />TABLE OF CONTENTS <br />Page <br />1.0 INTRODUCTION...............................................................................................................1 <br />2.0 SCOPE OF SERVICES.....................................................................................................1 <br />3.0 PROJECT INFORMATION................................................................................................1 <br />4.0 SUBSURFACE EXPLORATION AND TESTING...............................................................2 <br />4.1 Field Exploration Program.........................................................................................................2 <br />4.2 Laboratory Testing..................................................................................................................... 2 <br />5.0 SITE CONDITIONS........................................................................................................... 2 <br />5.1 Surface Observations................................................................................................................ 2 <br />5.2 Subsurface Soils/Geology.......................................................................................................... 2 <br />5.3 Groundwater.............................................................................................................................. 3 <br />6.0 RECOMMENDATIONS.....................................................................................................4 <br />6.1 Definitions.................................................................................................................................. 4 <br />6.2 Approach Discussion................................................................................................................. 4 <br />6.3 Subgrade Preparation................................................................................................................ 4 <br />6.4 Design R-Value.......................................................................................................................... 5 <br />6.5 Utilities....................................................................................................................................... 5 <br />7.0 CONSTRUCTION CONSIDERATIONS.............................................................................6 <br />7.1 Potential Difficulties....................................................................................................................6 <br />7.2 Excavation Backsloping............................................................................................................. 6 <br />7.3 Observation and Testing............................................................................................................ 6 <br />8.0 ASTM STANDARDS.......................................................................................................... 7 <br />9.0 LIMITATIONS.................................................................................................................... 7 <br />Page ii <br />