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• <br /> • <br /> S-P TESTING, INC. Steven B. Schirmers — MPCA Cert. No. 627 <br /> 951 Katydid Lane NE • St. Michael, MN 55376 • (612) 497-3566 <br /> January 5, 1994 <br /> Allen McDowell <br /> Lot 1, Block 1 <br /> Smith Dettloff Addition <br /> Orono, Henn. Co. , MN <br /> This On-Site Sewage Treatment System is Designed for a Type 1, Four Max. <br /> bedroom home Designed in accordance with the Minnesota Pollution <br /> Control 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 14" to 30" , (mottled <br /> soil ) . Due to the seasonally high water table, a Pressurized <br /> Mound System will need to be installed. The bottom of the rock <br /> bed must be located at least 3 ' above the seasonally high water <br /> table. <br /> The soils at a depth of 12" have a percolation rate averaging <br /> 10 .5 min/inch. <br /> If the south site is used for the primary site, an Interceptor <br /> Drain will need to be installed. <br /> A pumping chamber will need to be installed to lift the effluent <br /> to the treatment area. <br /> The manifold and supply line pipe must have back drainage to the <br /> pumping chamber. The ditribution pipes shall have their ends <br /> capped. Be sure the rock and sand fill material are clean. The <br /> sod layer below the entire mounded area must be turned over, just <br /> break up the sod, be sure not to over work. <br /> The power supply and switches must be located outside the manhole <br /> and pumping chamber in a weather proof enclosure. A warning device <br /> must be installed with a light and sound device , this is in case of <br /> a pump failure. (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 />