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<br /> <br />NORTHERN TECHNOLOGIES INC. <br /> <br />2942 Fiechtner Dr., Fargo, ND 58103 701-232-1822 701-232-1864 Fax <br /> <br />March 13,2009 <br /> <br />T.L. Stroh Architects <br />8 Seventh Street North <br />Fargo, ND 58102 <br /> <br />Attn: Devin Mogck, AlA <br /> <br />Re: Geotechnical Exploration and Consulting Services <br />Proposed Addition to Cass County Jail <br />Fargo, North Dakota <br /> <br />Northern Technologies Inc. (NT!) is pleased to submit this proposal for geotechnical exploration and <br />consulting services for the above proposed project. The narrative below defines our understanding of the <br />project, presents anticipated geotechnical conditions at the site, provides an outline of our proposed "scope of <br />services", and presents fee for completion of the services. <br /> <br />Background Information <br /> <br />The proposed addition will consist of a two story building with a full depth basement to be used as a parking <br />garage at the existing facility located at 450 34th Street South in Fargo, North Dakota. We anticipate the <br />structure will be founded on standard strip and column footings below the local frost depth. <br /> <br />Anticipated Conditions & Assumptions <br /> <br />The City of Fargo is constructed over post glacial marine clays and other sediment (Glacial Lake Agassiz <br />fonnation) underlain by glacial till. Soils anticipated on site include environmentally impacted fat clays <br />underlain by soft fat clays extending to glacial till at depth, We anticipate groundwater may be present <br />within the sand and silt lenses bedded within the GLA soils. <br /> <br />We assume the existing grounds at the site are relatively level with minimal, if any, obstruction which would <br />prevent direct access to the proposed boring locations by our truck mounted drill, We also assume that there <br />will be no obstructions negating site access such as trees, brush, overhead power lines or other obstructions <br />limiting equipment access. Finally, we assume the geotechnical exploration will be perfonned during a <br />period lacking inclement weather. <br /> <br />FARGO. MINNEAPOLIS. ST. CLOUD <br />