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' Rusty Olson's--Soil and Percolation Testing <br /> Joseph J. Olson—MPCA License#810 <br /> 11481 Riverview Rd. NE, Hanover, MN 55341 <br /> (612)49&8779 <br /> October 24, 1997 <br /> Steve Larson <br /> 1005 Heritage Lane <br /> Orono,Henn.Co. <br /> This On-Site Sewage Treatment System is Designed for a Type 1,four bedroom home in accordance with the <br /> Minnesota Poll�ition Control Agency Chapter 7080 and local ordinances. <br /> The soils on this site are SCS soils mapped-LRB Lester Loam. The seasonally saturated soils were located at <br /> 24"-to not present(mottled soil). Due to the seasonally saturated soils, a pressurized mound system will need to <br /> be installed to treat septic effluent. The bottom of the treatment area must be located at least 3' above the <br /> saturated soils. <br /> The soils at a depth of 12"have a percolation rate averaging 5.0 min/inch. <br /> Existing tank must be abandoned. <br /> A pumping chamber will need to be installed to lift the effluent to t6e treatment area. The power supply and <br /> switches must be located outside the manhole and pumping chamber in a weather proof enclosure. A warning <br /> device must be installed with light and sound device,this is in case of a pump failure. <br /> The manifold and supply line pipe must have back drainage to the pumping chamber. The distribution pipes shall <br /> have their ends capped. Be sure the rock and sand fill materials are clean. The sod layer below the entire <br /> mounded area must be turned over,just break up the sod,be sure not to over work. <br /> All neighboring wells are located greater than 100' away from the proposed treatment area. <br /> Keep all heavy equipment off of the proposed treatment areas before and after construction. The treatment area <br /> should be marked off before construction. This Design is not valid&the System will need to be relocated if failure <br /> to protect the areas proposed for On-Site Sewage Treatment occurs. <br /> Nothing other than gray water,(laundry,showers,etc.)human waste&toilet tissue should be disposed of into the <br /> septic tanks. Garbage disposals are not recommended. Additives must not be used,they may cause 6armful <br /> damage to your septic system. It is recommended that you pump the tank every year for 1 tank every two years <br /> for two tanks. <br /> Joseph 3.Olson <br /> � <br /> l�� <br />