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therefore recommended as a suitable means of support of the <br />proposed addition. <br />Auger cast concrete piles should be Installed to achieve at <br />least 10' of embedment into the natural sand and tough clayey <br />glacial till below the organic soils. At our single test hole <br />location the piles would extend about 32 feet below existing <br />grade, but piles closer to the lake would potentially be longer. <br />Recommended design capacity of this type of pile is: <br />PILE DIAMETER RECOMMENDED ALLOWABLE PILE NET WORKING LOAD * <br />lincheaJL_ _ _ _ _ _ _lismaj—- - - - - - - - - - - - - - - - - - - <br />12 17 <br />* After allowance for potential negative skin <br />friction caused by settlement of the lake <br />margin soils.