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Kraus-Anderson Realty Company Project BL-11-01014 March 18, 2011 Page 2 • Locating the borings in the field and determining existing ground surface elevations. • Coordinating the locating of underground public utilities near the boring locations. • Drilling 6 standard penetration test(SPT) borings to nominal depths ranging from 15 to 25 feet below existing grades. (Note: a seventh soil boring(ST-7)was added at our discretion.) • Classifying the samples obtained and preparing boring logs. • Performing laboratory tests on select samples obtained. • Provide recommendations for preparation of structure subgrades including the selection, placement and compaction of fill material, including the reuse of on site materials as engineered fill. • Provide recommendations for design and construction of foundations, slabs-on-grade, and below grade walls for the proposed building. • Submitting this Geotechnical Evaluation Report containing logs of the borings, our analysis of the field and laboratory tests, and recommendations for the proposed development. A.3. Field Exploration Subsurface conditions were evaluated with seven (7)soil borings drilled in the general area of the proposed construction (ST-101 through ST-107).The borings were advanced using 3 1/4-inch inside diameter hollow stem augers(HSA)and a CME 750 drill rig.Our drill crew worked in general accordance with ASTM International(ASTM) D 6151 method for HSA drilling. Sampling of overburden soil in the SPT borings was accomplished in general accordance with ASTM D 1586.The borings were backfilled with soil cuttings upon completion of drilling. We note that the previous borings performed by Braun Intertec were drilled using similar procedures as described above.Several previous borings are shown on the attached sketch and those boring logs are included in this report. The approximate locations of each of the borings are shown on the Soil Boring Location Sketch in the Appendix.The boring locations and existing ground surface elevations at the exploration locations were determined using GPS (Global Positioning System)technology and utilizing the Minnesota Department of Transportation's(MnDOT) permanent GPS Virtual Reference Network(VRN). No ground surface elevation was obtained for Boring ST-107 as this boring was located in the field at the time of drilling. However,we have estimated the ground surface elevation at ST-107 based on available topographic information. BRAUN INTERTEC