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SITE EVALUATION REPORT <br />FOR JOHN B.A. IDSTROM, II <br />IN LOTS 13 & 14. AUD. SUB. No. 229 <br />:ORONO. MINNESOTA <br />-------- . i l’l <br />OCT I 6(905 <br />®S!or6n6 <br />10-5-85 <br />On August 29-31, 1985 two proposed lots were tested for both primary and alter <br />nate drainfield sites to determine their suitability for on-site drainfield sys <br />terns. 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 moderately high seasonal <br />water table, shallow trench systems would be needed for both sites. <br />Lot 2, the south lot, had an average percolation rate of 21.6 minutes per inch <br />on the primary slte(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 />Additional information follows. If any other information is needed, please <br />contact me. <br />Sincerely, <br />PERCOR, INC. <br />Mark S. Gronberg, P.E.*^ <br />PCA certified