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S -P TES TING, INC. <br />951 KATYDID LANE <br />ST. MICHAEL. MN 55376 <br />497.3566 <br />STEVE SH IRMERS <br />November 5, 1987 <br />Tom Betz <br />Lot 2 of lot 41 <br />Auditor's Sub #203 <br />Stubbs Bay Road <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 Aqency standards WPC 40 and local <br />ordinances. <br />The soil on this site ire typical of SCS soils mapped - KkC - Kilkenny loam. <br />A seasonally high water table was located 22", 24", 2611, 28 & 30", (mottling). <br />Due to the seasonally high water table, a pressurized mound system will need <br />to be installed. The bottom of the rock bed must be located at least 3' <br />above the seasonally high water table. <br />The soils at a depth of 18" have a percolation rate averaging 5.3 min/inch <br />and are adequate for treating Geptic 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 />nit to over work. <br />The power supply and switches must be located outside the manhole and <br />pumping chamber in a weather proof 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 and 50' away on this site. <br />Keep all heavy equipment 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 />It is recommended that the septic tanks be pumped every 2 years. <br />Soil and Percolation Testi Steven B. Schirmers <br />Septic System Design <br />SBS/ds <br />