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s Rusty Olson's--Soil and Percolation Testing (120--1-• f trv-yt Joseph J. Olson--MPCA License# 810 11481 Riverview Rd. NE, Hanover, MN 55341 / (763) 498-8779 Fax (763) 498-8290 2-- /79( October 23,2001 7 47il t Branch Road. E I J(. /f' �Orono,Henn. Co. L., Lei&e This on-site Sewage Treatment System is designed Tor a Type 1 three-bedroom home in accordance wi (-' the Minnesota Pollution Control Agency Chapter 7080 and local ordinances. The soils on this site are SCS. soils mapped-KkB-Kilkenny loam.The seasonal saturated soils were located at 12"-16"(mottled soil).Due to the seasonally saturated soils,a pressurized mound system will need to be installed to treat the septic effluent.the bottom of the treatment area must be located at least 3' above the saturated soils. All neighboring wells are greater than 100'from proposed treatment areas. The soils at a depth of 12"have a percolation rate averaging 3 MPI. The existing tanks must be abandoned. The absorption area of the mound is 24'from the property line and 65'from the wet land. A pumping chamber will need to be installed to lift the effluent to the treatment area. The power supply and switches must be located outside the manhole and pumping chamber in a weatherproof enclosure. A warning device must be installed with light and sound devices;this is in case of a pump failure. The manifold and supply line must have back drainage to the pump chamber. The rock and fill materials must be clean.The sod layer below the entire mounded area must be turned over. Just break up the sod and be sure not to over work. Nothing other than gray water,(laundry.showers,etc.) Human water and toilet tissue should be disposed of into the septic tanks. Garbage disposals are not recommended. Additives must not be used;they may cause harmful damage to your septic system. It is recommended that you pump the tank every year for 1 tank every two years for two tanks. Sincerely • 4 Joseph J. Olson