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• i <br /> Rusty Olson's--Soil and Percolation Testing <br /> Joseph J. Olson—MPCA License#810 <br /> 11481 Riverview Rd.NE, Hanover,MN 55341 <br /> (763)498-8779 Fax(763)498-8290 <br /> May 2,2002 <br /> Revised April 5,2004 <br /> Lundgren Bros. <br /> 210 North Shore Drive W. <br /> Orono,Hennepin County <br /> This on-site Sewage Treatment System is designed for a Type 1,five-bedroom home in accordance with the Minnesota <br /> Pollution Control Agency Chapter 7080 and local ordinances. <br /> The seasonally saturated zone is present at 14"-18"(mottled soil). Due to seasonally saturated soils,a pressurized <br /> Mound System will need to be installed to treat septic effluent. The bottom of the treatment area must be located at <br /> least 3'above the saturated soils. <br /> All neighboring wells are greater than 50 feet deep and 50 feet from proposed treatment areas. <br /> The soils at a depth of 12"have a percolation rate averaging 9 MPI. <br /> 7/32 perforations are to be used in the laterals. <br /> A pumping chamber will need to be installed to lift the effluent to the treatment area. The power supply and <br /> switches must be located outside the manhole and pumping chamber in a weatherproof enclosure. A <br /> warning device must be installed with light and sound devices;this is in case of a pump failure. <br /> Septic system should be fenced off 20'away from proposed and future systems before construction begins. <br /> Keep all heavy equipment off of the proposed treatment areas before,during and after construction The area <br /> around both sites must be fenced off by the contractor before any construction begins This Design is not valid <br /> and the System will need to be relocated if failure to protect the areas proposed for On-Site Sewage Treatment <br /> occurs. <br /> Nothing other than gray water,(laundry,showers,etc.) Human water and toilet tissue should be disposed of into the <br /> septic tanks. Garbage disposals are not recommended. Additives must not be used;they may cause harmful damage to <br /> your septic system. It is recommended that you pump the tank every year for I tank every two years for two tanks. <br /> Sincerely, <br /> Joseph J.Olson <br />