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- <br /> ���� �:J� <br /> i � � <br /> ►�-� �� ����7�9 ,�� .' '"�. <br /> 95� KATYDI� LA�E <br /> ST. MICHAEL, MN 5��"_:76 . <br /> 497-3566 <br /> Steven �. Schirm�rs <br /> � September 27 , 1989 <br /> Allan Carlson � <br /> Lot 5 , Block 1 <br /> Crystal Creek <br /> Orono, Henn. Co. , 'MN <br /> This system is Designed for a Type 1, 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 - LrB - Lester <br /> loam. A seasonally high water table was located at 16" , 18" , 20" , <br /> 26" & 30" , !mottled soil ) . Due to the seasonally high water table , <br /> . a pressurized mound system will need to be installed. The bottom of <br /> the rock bed must �be, located at least 3 ' above the seasonally high <br /> water table . <br /> The soils at a depth of 18" have a percolation rate averaging 4 . 2 min/inch <br /> and are adequate for treating septic effluent. <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 swi�ches 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 /> Al1 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 /> � � <br /> CONT ' D <br /> Soil and Percolatio�e Tests <br /> Septic System DesigR <br />