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HAU G O UPON <br /> D copy <br /> April 25,2016 HGTS Project Number: 16-0219 <br /> e c?/`-� (S Aa <br /> Mr. Tim Schwob <br /> Welch Forsman Associates, Inc. 7 �� -t,-Cg 0-\ 61 <br /> 6026 Pillsbury Ave S <br /> Minneapolis, MN 55419 <br /> Re: Geotechnical Exploration Report,Proposed Garage Building, <br /> 755 Tonkawa Road,Orono,MN <br /> Mr. Tim Schwob: <br /> We have completed the geotechnical exploration report for the proposed garage building at <br /> 755 Tonkawa Road in Orono, Minnesota. A brief summary of our results and <br /> recommendations is presented below. Additional details regarding our procedures, results <br /> and recommendations follow in the attached geotechnical exploration report. <br /> Two(2)soil borings were completed for this project that extended to nominal depths of 20 feet <br /> below the ground surface. The soil borings encountered about 4 feet of existing topsoil fill <br /> and fill underlain by native clayey glacial till soils that extended to the termination depths of <br /> the borings. Groundwater was not encountered in either boring while drilling and sampling, <br /> or after the augers were removed from the boreholes to a cave-in depth of 12 feet. <br /> The existing fill is not suitable for foundation support and will need to be removed and <br /> replaced with suitable compacted engineered fill. The underlying native clay glacial till soils <br /> appear directly suitable for foundation support. The footings for the proposed garage <br /> building can be supported on the native clay soils or compacted engineered fill designed for <br /> a net allowable soil bearing pressure up to 2,000 pounds per square foot. <br /> Thank you for the opportunity to assist you on this project. If you have any questions or need <br /> additional information please contact Brett Maki at 612-269-4027 or John Carlson at <br /> 612-979-3542. <br /> Sincerely, <br /> HAUGO GEOTECHNICAL SERVICES,LLC <br /> Brett S. Maki,P.E. John T. Carlson,P.E. RECEIVED <br /> Project Engineer Senior Engineer <br /> JUL 267.010 <br /> CITY OF ORONO <br /> 2826 Cedar Avenue S, Minneapolis, MN 55407 <br />