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0 <br />Koch's Soil besting -1 r <br />P.O. Box 81 � <br />Loretto, MN 55357 <br />Tel: (612) 479-2637 <br />Bruce Kelly + 8/4/95 <br />2340 Fox St. ' <br />Orono, Minn. <br />Job Site TWO lots at the above address <br />Two sites were tested to determine what type of drainfield could <br />be installed and still comply with the local and the Minn. State <br />Codes. <br />Tthe west lot • In the Site 1A area had and average percolation rate <br />of 42.5 min/in. and the depth to mottled soil was at23-24 inches. <br />!while in theSite-2A the ave. perc. rate was 39.2 min/in. and the depth <br />mottled soil was at 24-28 inches. <br />The results of the east 1/•2 l8t! indicated that the Site #1 ( tested <br />on 5/26/95) had an ave.perc. xate of 25.6 min/in. and the depth to <br />mottled soil was at 24-28 inches. <br />While in the Site -1 -2 ( teeted7/25/95) had a average perc. rate of <br />35 min/in. and the depth to mottled soil was at 18-29 inches. <br />* Mottled soil is co nsider the seasonal saturated.soil level that <br />exist durng the wet seasons. The City of Orono Codes state that the <br />minnmum depth to mottled soil be at 48 inches or deeper before a <br />standard trench drainfield can be installed. <br />Therefore with the above information the on, —e of. -system that <br />can be installed on these two lots is a & Lad mound system. <br />Site Evaluator <br />Robert A. Koch M.P.C.A# 1429 <br />,. <br />