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i <br />SITE EVALUATION REPORT <br />FOR JONN B.A. IDSTROM, II <br />IN LOTS 13 & 142 AUD. SUB. No. 229 <br />- ORONO, MINNESOTA <br />10-5-85 <br />OAT <br />CITY OF <br />1� <br />6ft <br />ORONYwank — <br />On August 29-31, 1985 two proposed lots were tes�ed for both primary and alter- <br />nate drainfield sites to determine their suitability for on -site drainfield 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 <br />for the primary site(holes 1-4) and a rate of 10.4 minutes per inch <br />alternate site(holes 5-6). With the possibility of a moderately nigh <br />water table, shallow trench systems would be needed for both sites. <br />per inch <br />far the <br />seasonal <br />Lot 2, the south lot, had an average percolation rate of 21.6 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 dra i nt i 1 e used to lower the water table. <br />Arm i t inns 1 i nfnrmat inn fn 1 1nwc Tf ;env nthpr i nfnrmat inn i c nPPdPd _ nl PASP <br />contact me. <br />Sincerely, <br />PERCOR, INC. <br />> D <br />G <br />Mark S. Gronberg, P.E:� <br />PCA certified <br />