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f . <br /> . � i F <br /> S-P TE S TING, INC. <br /> 951 KATYDID �ANE <br /> ST. MICHAEL, MN 55376 <br /> 497-3566 <br /> � Steven B. Schirmers <br /> August 29 , 1990 <br /> Scott Mabusth <br /> 740 No. Brown Rd. <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 - NeB - Nessel <br /> loam. A seasonally high water table was located at 12" , 18" & 20" , <br /> (mottled soil ) . Due to the seasonally high water table, a Pressurized <br /> Mound System will need to be installed. The bottom of the rock bed <br /> must be located at least 3 ' above the seasonally high water table. <br /> The soils at a depth of 12" have a percolation rate averaging 46 . 6 <br /> min/inch 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 /> This site has an existing failing system which may outlet into the <br /> low area. The existing tank is old & must be abandoned, pumped & <br /> filled with soil . <br /> CONT' D <br /> Soil and Percolution Teata <br /> " Septic System Deaign <br />