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^F1 KATYDID LANE -.21 ST. V 1, CHAE _, V N 55537 ,, i 497.356-1 n-4. • 'c.� Steven 3. Schirmear October 26, 1989 John McDowell Tract A, RLS 748, Lot a Sayside ridge Parcel 1, Fast Site Sub -Div. Orono, Henn. Co., MN This system is Designed for a Type 1, four bedroom hone and in accordance with the Minnesota Pollution Control Agency Chapter 7080 and local ordinances. The soils on this site are typical of SCS soils mapped - KkC2 - Kilkenny clay loam. A seasonally high water table was located at 14", :6", 18", 6 22", (mottled soil). Due to the seasonally high water table, a pressurized mound system will need to be installed. ;he bottom of the rock bed must be located at least 3' above the seasonally high water table. The soils at a depth of 18" have a percolation rate averaging 27.5 min/inch and are adequate for treating septic effluent. A pumping chamber will need to be installed to lift the effluent to tho treatment area. The manifold and supply line pipe must have back drainage to the pumping chamber. The distribution pipes shall have their ends capped. Be sure the rock and :;and fill material are clean. :he sod layer below the entire mounded area must be turned over, just break up the soc, be sure not to over work. The power supply and switches must be located outside t::e manhole and pumping chamber in a weather proof enclosure. A warning device must be installed with a light and sound device, ;.`.is is in case of a pump failure. (Mercury floats are a good method). All neighboring wells are located more than 1GG' away from t o rroposed treatment area. Keep all heavy equipment off of the proposed treotT.ent area -fore and after-onstruction as much as possible. Tne treat. -.en*_ area should be marked off before construction. 173N : Soil and Percolation Tazta Srp(it Srslrm 1)e4egn