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• <br /> • <br /> S-. - T.�;S TNG, INC. <br /> '51 KATYDID LANE <br /> ST. MICHAEL, MN 55 I. 4 0 f]i; <br /> 497-3566 <br /> Steven B. Schi s <br /> April 19 , 1989 <br /> • <br /> Phyllis Colwell <br /> Lot 3 , Block 1 <br /> Colwell Addition <br /> Orono, Henn. Co. , MN <br /> This system is Designed for a Type 1, four bedroom home and in accordance <br /> with the Minnesota Pollution Control Agency Chapter 7080 and local <br /> ordinances . <br /> The soils on this site are typical of SCS soils mapped - LrC - Lester <br /> loam. A seasonally high water table was located at 32" , 34" , 46" , 60" <br /> &68" . Due to the seasonally high water table, a pressurized mound system <br /> will need to be installed. The bottom of the rock bed must be located <br /> at least 3 ' above the seasonally high water table. <br /> The soils at a depth of 12" have a percolation rate averaging 6.1 min/inch <br /> and are adequate for treating septic effluent. <br /> A pumping chamber will need to be installed to lift the effluent to the <br /> treatment area. <br /> The manifold and supply line, pipe must have back drainage to the pumping <br /> chamber. The distribution pipes shall have their ends capped. Be sure <br /> the rock and sand fill material are clean. The sod layer below the <br /> entire mounded area must be turned over, just break up the sod, be sure <br /> not to over work. <br /> • <br /> The power supply and switches must •be located outside the manhole and <br /> pumping chamber in a weatherproof enclosure. A warning device must be <br /> installed with a light and sound device, this is in case of a pump failure. <br /> (Mercury floats. are a good method) . <br /> All neighboring wells are located more than 100 ' away from the proposed <br /> treatment area. <br /> Keep all heavy equipm.ent •off of the proposed treatment area before and <br /> after construction as much as possible. The treatment area should be <br /> marked off before construction. <br /> With proper installation and maintenance, this system should have no <br /> problem in treating septic effluent effectively. <br /> • <br /> Recommend to pump •the septic tank every year if there is only 1 tank <br /> & every 2 years if there are 2 tanks. <br /> • Soil and Percolation Tests <br /> • Septic System Design Steven B. Schirmers <br /> SBS/ds S c);.5 <br />