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�l' <br />SITE EVALUATION REPORT ( 6 <br />FOR JOHN B.A. IDSTROM, II J <br />ft <br />IN LOTS 13 & 14, AUD. SUB. No. 229 L--��_._____` <br />ORONO, MINNESOTA CITY (,1h �� �,7 J <br />10-5-85 <br />On August 29-31, 1985 two proposed lots were tested fnr both primary and alter- <br />nate drainfield sites to determine their suitability Tor on -site arainfield sys- <br />tems. Testing was done in accordance with Individual On -Site Sewage Treatment <br />System Standards(WPC-40). <br />Lot 1, the north lot, had an average percolation rate of 7.7 minutes per inch <br />for the primary site(holes 1-4) and a rate of 10.4 minutes per inch for the <br />alternate site(holes 5-6). With the possibility of a ,,w:.,i itely high seasonal <br />water table- challnw tranrh cystemS would by np d§j 4n r �♦ �{+e <br />Lot 2, the south lot, had an average percolation rate of 2 .6 minutes per inch <br />on the primary site(holes 1-4) and 15.2 minutes per inch for the alternate <br />site(holes 5-6). Because of the high seasonal water table, shallow trench <br />systems would be needed for both sites with some fill required over the trench- <br />es or an interceptor draintile__used to lower the water table. <br />rmation follows. If any other information is needed, please <br />contact me. <br />Sincerely, <br />PERCOR, INC. <br />n Q � <br />Mark S. Gronberg, P.E.< <br />PCA certified <br />