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� • �y <br /> �' � � <br /> ` • <br /> � S-P TESTING, INC. <br /> 951 KATYDID LANE <br /> ST. MICHAEL, MN 55376 <br /> 497-3566 <br /> Steven B. Schirmers <br /> August 6, 1990 <br /> Paul Hanssen <br /> 520 North arm Drive <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 - LsC2 - Lester <br /> clay loam. A seasonally high water table was located at 18" , 24" , <br /> 26" , 28" , 32" & 40" , (mottled soil ) . Due to the seasonally high <br /> � water table, a Pressurized Mound System will need to be installed. <br /> The bottom of the rock bed must be located at least 3 ' above the <br /> seasonally high water table. <br /> The soils at a depth of 12" have a percolation rate averaging 6 . 8 <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 75 ' away from the proposed <br /> treatment area. <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 /> CONT' D <br /> Soil and Percolation Teata <br /> Septic Syatem Deaign <br />