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� � i , Y�() � /... . <br /> �j � IV <br /> S-�' TE'ST�1�G, INC. <br /> 951 KATYDID LANE <br /> ST. MICHAEL, MN 55376 <br /> 497-3566 <br /> Steven �.. S�hirmexs _ <br /> September 20 , 1989 <br /> Allan Carlson ' <br /> Lot 1, Block 1 <br /> Crystal Creek � <br /> Orono, Henn. Co. , MN <br /> This system is Designed �or a Type l, four bedroom home and in accordance <br /> with the Minnesota Pollution Control Agency Chapter 7080 and local <br /> ordinances . <br /> The soils on this site are typical of SCS soils mapped - Ha - Hamel ' <br /> loam bordered by - LrC - Lester loam. A seasonally high water table <br /> was located at 16" , 26" , 28" & 30" , (mottled soil ) . Due to the <br /> seasonally high water table, a pressurized mound system will need to <br /> be installed. The, bottom of the rock bed must be located at least 3 ' <br /> above the seasonally high water table. <br /> The soils at a depth of 18" have a percolation rate averaging 4 . 4 <br /> min/inch. <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 more than 100 ' away from the proposed <br /> treatment area . <br /> Keep all heavy equipment off of the proposed treatment area before and <br /> after construction as much as possible. The treatment area should be <br /> marked off before construction. . <br /> , CONT ' D <br /> Soil and Percolation Teata <br /> � , Septic Syatem Design <br />