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♦ « <br />cm OF ORCNO, MINNESOTA <br />REGULAR PLANNING Ca^^ISSION MEETING HELD MARCH 7, 1977 <br />Cfthe Orono Planning Conmission met on the above date with th <br />following menders present: Chairman Gregg Hannah, Menfcers <br />Gloria McDonald, Diane Dunlap, Paul Pesek, ^d Dick Hassel. <br />Also present were Hank Muhich, Zoning Administrator, and <br />Mayor Brad Van Nest. <br />Mr. Muhich introduced Jim Anderson of the Hennepin County <br />Soil Conservation District to the Planning Commission. He <br />stated that Mr. Anderson would be defining the difference <br />between the characteristics of Hamel and Glencoe soils and <br />mrshes, and the problems there might be with septic systems <br />on these types of soil. <br />Mr. Anderson graduated from Wisconsin with his Ph.D. and <br />spent the last four years there vorking on the small scale <br />waste management project. The primary function was working <br />on on-site soil absorption systems and, more specifically, <br />mound type or fill type systems. <br />One of the booklets he handed out was entitled Landscapes, <br />of H^epin County which was prepared by Patrick Kennedy, <br />1 other soil scientists whoDistrict Conservationist, and - - - - - <br />worked for the County a coiqple of years ago. They groi^d <br />ytthe soils of Hennepin County into certain groups, md thpr <br />^}ssigned these groups colors. They broke it dovn into what <br />^^ey called ’’landscape planning units'*, piey grouped the <br />soils that had similar j^ysical characteristics (structure <br />and texture, as well as hig^ water table, etc.). These <br />groins are illustrated on the colored map supplied to Hank <br />Mihich. <br />When he first came here from Wisconsin, Mr. Anderson didj .-.t <br />some work in Medina and Corcoran.- He looked at their soils- ~ <br />and took as a criteria the 1971 Minnesota Department of <br />Health's suggested ordinance and code regulations for <br />individual sewage disposal systems. If we took their <br />criteria >diidi said in areas of shallow ground water, the <br />depth of the water table shall be detemined, no soil <br />absorption systems shall be installed in an area where <br />the water table is less than 6% ft. below ground level or <br />4 ft. below the bottom of the drainfield trench. This has <br />some drastic inplications for the conventional on-site <br />soil absorption system which is normally used in hcsnes <br />today. In the two comnunities of Hamel and Corcoran, about <br />20-221 of the soils in the area would actually end up being <br />suitable using that criteria and the criteria of the 60 <br />min. per inch perculation rate. Orono is no exception, as <br />you could readily tell if you were a little more experienced <br />in using the color charts. <br />O <br />L <br />ATTENDANCE - 7:30 P.M. <br />JIM ANDERSON - HENNEPIN <br />COUNTY SOIL CONSERVATION <br />DISTRICT <br />PROBL04S WITH ON-SITE SEPTIC <br />SYSTBIS ON Ha SOILS