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<br /> <br /> <br />May 17, 2024 HGTS Project Number: 24-0323 <br /> <br /> <br />Mr. Tom Preissing <br />Aspect Design Build <br />422 2nd Street <br />Excelsior, MN 55331 <br /> <br /> <br />Re: Geotechnical Exploration Report, Proposed Residential Development, 3456 6th <br />Avenue N, Orono, Minnesota <br /> <br />Dear Mr. Preissing: <br /> <br /> <br />We have completed the geotechnical exploration report for the proposed residential <br />development in Orono. A brief summary of our results and recommendations is presented <br />below. Specific details regarding our procedures, results and recommendations follow in the <br />attached geotechnical exploration report. <br /> <br />Three soil borings were completed for this project that encountered topsoil or aggregate base <br />at the surface that was underlain by sandy lean clay glacial till that extended to the termination <br />depths of the borings. Groundwater was not encountered in the soil borings while drilling <br />and sampling or after removing the augers from the boreholes. <br /> <br />The vegetation, topsoil are not suitable for roadway or utility support and will need to be <br />removed and replaced, as needed, with suitable compacted engineered fill. It is our opinion <br />that the underlying native glacial till soils are generally suitable for roadway and utility <br />however portions of the clayey soils had a soft consistency and some corrections to remove <br />the soft clays could be required. <br /> <br />Thank you for the opportunity to assist you on this project. If you have any questions or need <br />additional information, please contact Paul Gionfriddo at 612-729-2959. <br /> <br />Sincerely, <br /> <br />Haugo GeoTechnical Services <br /> <br /> <br /> <br /> <br />Paul Gionfriddo, P.E. <br />Senior Engineer <br /> <br /> <br /> <br /> <br />204