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S-P TESTING,I G, I C. Steven B. Schirmers — MPCA Cert. No. 627 <br /> 951 Katydid Lane NE • St. Michael, MN 55376 • (612) 497-3566 <br /> October 3 , 1991 <br /> John Mengie <br /> 320 Turnham Rd. <br /> Orono, Henn. Co. , MN <br /> This On-Site Sewage Treatment System is Designed for a Type 1, four <br /> bedroom home in accordance with the Minnesota Pollution Control <br /> Agency Chapter 7080 and local ordinances. <br /> The soils on this site are SCS soils mapped - KkB - Kilkenny loam. <br /> A seasonally high water table was located at 16" , 18" & 26" , <br /> (mottled soil) . Due to the seasonally high water table, a <br /> Pressurized Mound System will need to be installed. The bottom <br /> of the rock bed must be located at least 3 ' above the seasonally <br /> high water table. <br /> The soils at a depth of 12" have a percolation rate averaging 8.9 <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 greater than 100 ' away from the <br /> proposed treatment area. <br /> CONT' D <br />