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S-� T,ESTING� llr C. Steven B. Schirmers = MPCA Cert. No. 627 <br /> 951 Katydid Lane NE • St. Michael, MN 55376 • (612) 497-3566 <br /> February 5, 1995 <br /> Philip & Mary Hernandez <br /> 18�� r�, , ^,-� , �r,, <br /> Orono, Henn. Co. , MN <br /> This On-Site Sewage Treatment System is Designed for a Type 2 , four <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 a clay loam. A seasonally high water <br /> table was located at 14" to 26" , (mottled soil ) . Due to the <br /> seasonally high water table, a Pressurized Mound System will need <br /> to be installed. The bottom of the rock bed must be located at <br /> least 3 ' above the seasonally high water . <br /> The soils at a depth of 12" have a percolation rate averaging <br /> 4 . 6 min/inch. <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 distribution 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 75 ' away from the <br /> proposed treatment area. <br /> CONT ' D <br />