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<br />Proposal for Geotechnical Services <br />Centerville Downtown Street & Utility Project <br />Centerville, Minnesota <br />NTI has assumed that there is reasonable access to the proposed borehole locations. This would include safe <br />working distances from utilities, removal of site obstructions that prohibit access to the proposed borehole <br />locations, etc. <br /> <br />Soil sampling in the borings will be performed at 2-1/2-foot intervals. Soil sampling will be performed in general <br />accordance with ASTM D 1586. A geotechnical engineer will visually classify field-collected samples in general <br />-value, relative density, <br />consistency and estimated compressive strength will be documented on soil boring logs. <br /> <br />We will measure for the presence of groundwater or lack thereof when we complete each soil boring. We will <br />backfill the soil borings with soil cuttings or high solids bentonite grout to comply with current Minnesota <br />Department of Health Regulations. <br /> <br />We will perform laboratory tests on selected soil samples, this may include: <br /> <br />1.Plastic/liquid limit tests on cohesive soils. <br />2.Moisture tests. <br />3.Gradations. <br />4.Organic content tests. <br /> <br />Upon completion of the field and laboratory work, a geotechnical engineering report will be prepared. The <br />report will include the logs of the borings, location drawing and the results of the field and laboratory tests. In <br />addition, the report will include our engineering opinions and recommendations regarding: <br /> <br />1.Site preparation and excavation recommendations. <br />2.Engineered fill and compaction recommendations. <br />3.Anticipation and management of groundwater for design and construction. <br />4.Potential construction difficulties regarding excavation and backfill. <br />5.Estimated R-Value for use in bituminous pavement design. <br />6.Recommended pavement design thickness. <br /> <br />engineered alternatives, review earthwork, groundwater control, and other civil plans and specifications as an <br />materials testing services once the project construction begins. This provides professional continuity of services <br />throughout the design and construction of the project. <br /> <br />32 <br /> <br />