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August 1, 1983 <br />Anderson Guilders Inc <br />Job {} 1979 <br />Pago 2 of 2 <br />r <br />r! ' <br />r ■ <br />; <br />Iiv- <br />f-; <br />-5. <br />r <br />r <br />r-- <br />seasonal high ground water table, was indicated in the soil sanples recovered <br />to be at a depth of betwenn abbut 3 to I feet below grade. The percolation <br />rates above the mottling condition were determined to be just lees than <br />20 minutes per inch. Two of the percolation tests showed rates of 9 and <br />liO minutes per inch, but should be discarded as not representative In light <br />of the other four rates. In addition, the design recommended would not <br />be affected if either of these rates were used in lieu of the rate of 20 <br />minutes per inch# The percolation tests were cond\ictdd in accordance with <br />the standards established by the 1-Iinnesota Pollution Control Agency and <br />the City of Orono. Details concerning the tests and the borings are given <br />on the attached copies of the field test data sheets and logs of soil borings# <br />Very truly Yours, <br />TOM SMITH ASSOCIATES, IT.!: <br />TIIOMAS K SiaTH, PE <br />cc City of Orono ATTH: Mke Gaffron <br />I her«by certify that this plan, specification, or <br />report was prepared by me or under my direct <br />supervision and that 1 am a duly Registered <br />Professionol Engineer imder Iho Laws of fho <br />Slot* of Minnesota <br />THO>;\AS K. SMITH <br />Data Reg. Noi^04£ <br />I. <br />TOM SMITH ASSOCIATES Inc