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� � . . <br /> � . , ��' <br /> � � . <br /> � :. �'-� �'�S�'�NG, INC. <br /> � 951 KATYDID LANE <br /> ; , ' ST. MICHAEL, MN 55376 <br /> � 497•3566 <br /> , ; -. . <br /> ' " ; Steven B.. . S�hir;meXs . <br /> � _ <br /> � July 19 , 1989 � <br /> Nina Wildman Property � <br /> Lot 3 , Blk. 2, Fox Bend . <br /> Orono, Henn. Co. , MN � <br /> This system is Designed �or a Type 1, four bedroom home and in accordance <br /> with the Minnesota Pollution Control Agency Chapter 7�080 and local <br /> ordinances . ' <br /> The soils on this site are typical of SCS soils mapped - LrB - Lester �. <br /> loam, more typical of Heyc�er soil at primary site. A seasonally <br /> high water table was located at � 30" , 34" 58" & 60" , (mottled soil) . <br /> The bottom of each trench must be located at least 3 ' above the <br /> .• seasonally high water table. A standard trench system may be installed <br /> in the area of TH's #1, 2,3 ,&4 . A pressurized mound system will need <br /> to be installed in the area of TH' s #5 & 6 , the future expansion area. <br /> The soils at a depth of 22" & 24" have a percolation ,rate averaging 1. 9 <br /> min/inch in the proposed treatment area. � <br /> Each trench will need to be over excavated a minimum of 12" and be <br /> replaced with uncompacted loamy sand. This liner is needed to slow the <br /> effluent down for treatme�t. If drop boxes are used with a minimum of <br /> 4 trenches , this liner is not needed. • , <br /> A pumping chamber �ill need to be installed to lift the effluent to the <br /> treatment area. � <br /> The power supply. ahd 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 m�thod) . The supply line pipe must have back <br /> drainage to the p•umping chamber. <br /> All neighboring we:lls 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 /> ;; , <br /> � � <br /> �� �. � Soil and Percolution Teata • CONT'D <br /> ' , • . Septic Syatem Deaign <br />