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S -P TESTZNGP INC. <br />Dickey site <br />Lot 6, Block 1 <br />Orono, Henn. Co., MN <br />I <br />Steven B. Schirmers — MPWA (R. No. 627 <br />951 Katydid lane NE • St. Michael, MN 55376 • (612) 497-3566 <br />December 19, 1993 <br />This On -Site Sewage Treatment System is Designed for a Type 1, five <br />bedroom home in accordance with the Minnesota Pollution Control <br />Agency Chapter 70PO and local ordinances. <br />The soils on this site are SCS soils mapped - LrB - Lester loam. <br />A seasonally high water table was located at 12" to 36", (mottled <br />soil). Due to the seasonally high water table, a Pressurized <br />Mound System will nee' 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 />!� min/ inch. <br />,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 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 out,:i.'e the manhole and <br />pumping chamber in a weather proof enclosure. A w A ng device must <br />be installed with a light and sound device, this is in case of a pump <br />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 />