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' S-iP TESTZN 9 ZNQ Steven B. Schirmero — MPCA Cert. No. 627 <br />951 Katydid Lane NE • St. Michael, MN 55376 • (612) 497-3566 <br />September 30, 1991 <br />Paul Boyke <br />Lotl, Block 1 <br />Lauranne Woods, 10 .1/2 <br />Orono, Henn. Co., MN <br />This On -Site Sewage Treatment System is Designed for a Type 1, four <br />bed-nom home in accordance with the Minnesota Pollution Control <br />Agenc./ Chapter 7080 and local ordinances. <br />The soils on this site are SCS soils mapped - HbC - Hayden loam. <br />A seasonally high water table was located at 26" to 38", (mottled <br />soil). Due to the seasonally high water table, a Pressurized Mound <br />System will need •.-) be installed. The bottom of the rock bed must <br />be located at leas. 3' above the seasonally high water table. <br />The soils at a depth of. '2" have a percolation rate averaginq <br />6.2 min/inch. <br />A pumping chamber will need to be installed to lift the effluent to <br />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 H:.tches must be located outside the manhole and <br />pumping chamber in a weather proof enclosure. A warning device.raust <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 />