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. � �/l—� „2-2� / �i�"� • <br /> . � p�� <br /> ;� ?*�a � ;� J]��,�� ,�(� �J <br /> 4"� , 1 �jrv"�( �1 � �� J��� �.I• ���• v� <br /> A,��'".i'. �-. .E�_./ � jd_ <br /> �'S1 KA?'Y�"D LA!�E <br /> S i�. 1J,ICh,Ac!, MN 55376 � � �.�,,,���;� <br /> ����-3�e� � <br /> . � <br /> � � Steven ;3. SChirmers - . � �,:, �,�;���-,�� �� � +�. /�'�„��� <br /> � October 2, 1989 <br /> Cliff Otten �� <br /> Lot2 ,Blk. 3 , Existing House � .� aT <br /> East willow Woods � <br /> Orono, Henn. Co. , MN '�� ��^�����..� i <br /> � � <br /> This system is Designed for a Type 1,�'ive bedroom home and in accordance <br /> with the Minnesota Pollution Control Agency Chapter 7080 and local <br /> ordinances . <br /> The soils on tnis site are typical of SCS soils mapped - HcB2 - Hayden <br /> clay lo��m. A seasonally high water table was located at 22" , 24" , <br /> • 28" , 36" & 38" , (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 locGtEd at least 3 ' above the seasonally high <br /> water table . ' <br /> The soils at a depth of 18" have a percolation rate averaging 13 . 0 <br /> min/inch and are adequate for treating septic effluent. <br /> This site has an existing system. The location of the system or the <br /> tanks was not found (tanks may be located in tize basement) . when <br /> the system is replaced, a pressurized mound system will need to be <br /> installed. <br /> A pumping chamber will need to be installed to lift the effluent to the <br /> treatment area . <br /> The manifold and supply Tine 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 locat�:� ou��side the manhoie and <br /> pumping cha�,�ber 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 iocated more than 75 ' away from the proposed <br /> treatment area . <br /> Keep all heavy equ�pment off of the proposed treatment area before and <br /> aiter constructior: as much as possible . The treatment area shouid be <br /> marked off before construction . ' <br /> Soii and Perco�a�ion Teats <br /> Septic Sysfern Design CONT ' � <br />