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Report of Geotechnical Exploration and Review <br /> 1105 Femdale Road West,Orono,Minnesota A1V�RICAN <br /> June 21,2013 ENGINEERING <br /> Report No.01-05798 TESTING,INC. <br /> 7.0 CONSTRUCTION CONSIDERATIONS <br /> 7.1 Potential Difficulties <br /> 7.1.1 Cobb[es and Boulders <br /> We did not encounter cobbles or boulders at our borings, but they may be present within the site <br /> soils. If piles or piers are obstructed or out of alignment due to encountering obstructions, they <br /> may need to be replaced. <br /> 7.1.2 Water in Excavations <br /> Based on the close proximity of the lake, you should anticipate that ground water may be <br /> encountered in excavations for foundations and utilities for this project. To allow for � <br /> construction of pile caps and grade beams and to facilitate filling operations, we recommend that <br /> - free-standing water within the excavations be removed prior to proceeding with construction. <br /> 7.2 Ezcavation Backsloping <br /> If excavation faces are not retained, the excavations should maintain maximum allowable slopes <br /> in accordance with OSHA Regulations (Standards 29 CFR), Part 1926, . Subpart P, <br /> "Excavations" (can be found on www.osha.�ov). Even with the required OSHA sloping, water <br /> seepage or surface runoff can potentially induce sideslope erosion or mm�ing which could <br /> require slope maintenance. <br /> 7.3 Observation and Testing <br /> The recommendations in this report are based on the subsurface conditions found at our test <br /> boring location. Since the soil conditions can be expected to vary away from the soil boring <br /> locations, we recommend on-site observation by a geotechnical engineer/technician during <br /> construction to evaluate these potential changes. The building materials should also be tested in <br /> accordance with the project specifications and the building codes. <br /> Page 9 of 10 <br />