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< , . , . � �/L�! Z_25`' /. �o/N�_. . . . . , ,�., U��- �. ��,J� � ,�,��"�1��, �1�r�'. �.�,�+�� . �51 KATYC!D LANE ; ' ;' � ST. 1JIICFiAcL, MN 55376 /�,�"/�_ f"t`��•"�'�j° •.� �'.�'7-3566 / �" ► . �.....�-- �""""" � steven 3.. SChirmers . . _ �,,�,�•��.°�,��•�? ,�„�'�,1�:�... . � , , . October 2, 1989 Cliff Otten � Lot2,B1k. 3 , Exist'ing House � East Willow Woods' � ; , Orono, Henn. Co. ,' MN � � ; ,, This system is De�igned for a Type 1,Eive• bedroom home and in accordance with the Minnesot� Pollution Control Agency Chapter 7080 and local. ' ordinances . � �, i The soils on this ,site are typical of SCS soils mapped - HcB2 - Hayden � clay loam. A sea�onally high water table was loCated at 22"., 24" , • 28" , 36" & 38" , (mottled soil ) . Due to the seasonally high water table, a pressurized mou�id system will need to be installed. The bottom of the rock bed must be located at least 3 ' above the seasonally high water table. ' ' The . soils at a depth of 18" have a percolation �rate averaging� 13 .0 min/inch and are �dequate for treating septic effluent. This site has an �xisting system. The location of the s.ystem or the tanks was not foumd (tanks may be located in tne basement) . When ' the system is replaced, a pressurized mound system will need to be ' installed. . A pumping chamber will need to be installed to lift the effluent to the treatment area. ' ' :�. The manifold and �upply Tine pipe must have back drainage to the pumping chamber. The distribution pipes shall have their ends capped. • Be sure the rock and sand fill material are clean. The sod layer below the entire mounded area must •be turned over, just break up the sod, be sure not to over work. � The power supply �nd switches must be located outside the manhole and pumping chamber in a� weather proof enclosure. A warning device must be installed with a light and sound device, this is in case of a pump failure. (Mercury floats are a good method) . All neighboring wells are located more than 75 ' away from the proposed trea�ment area . , Keep all heavy equipment off of the proposed treatment area before and after constructior� as much as possible. The tre'atment area should be marked off before ,construction. ' • Soit and Perco�a►ion Tests • Septic Sys�ern Deaign � CONT' D . . , � ;