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• <br /> • <br /> S-P TESTING, INC. • • • • <br /> • 961 KATYDID LANE <br /> ST. MICHAEL, MN 55376 <br /> • • 497.3668 <br /> STEVE SHIRMERS <br /> September 22 , 1987 <br /> Wear Partnership • • <br /> Lot 3, Blcok 2 <br /> Orono, Henn. Co. , MN. <br /> • <br /> • <br /> This system is designed for a Type 1, four bedroom home and in accordance <br /> with the Minnesota Pollution Control Agency standards WPC 40 and local <br /> ordinances. <br /> The soils on this site. are typical of SCS soils mapped - LrB - Lester loam. <br /> A seasonally high water table was located at 16" , 20" , & 24" , (mottling) . <br /> Due to the seasonally high water table, a pressurized mound system will <br /> need to be installed. The bottom of the rock bed must be located at least <br /> 3 ' above the seasonally high water table. <br /> The soils at a depth of 18" have a percolation rate averaging 10 . 4 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 /> 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. <br /> • <br /> Keep all heavy equipment Off of the proposed treatment area before and <br /> after construction as' mucI 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 septiq effluent effectively. <br /> It is recommended that the septic tanks be pumped every 2 years . <br /> (53 <br /> Soil and Percolation Tests 57;A)---- <br /> Steven B. Schirmers <br /> Septic System Design • <br /> SBS/ds <br />