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e,��rw�// �,co ( 07,1Pe/101 1.-16 a/lppI Ca is <br /> �fLdeC `t !/�0t�t Iets�2l(er C Cs�/'da�Ld P1,0An. ei <br /> Joseph Olson D.B.A. <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 /> Revised March 22,2018 <br /> Norton Homes <br /> 4745 Augusta Street <br /> Orono, Hennepin County <br /> This on-site Sewage Treatment System is designed for a Type I,five-bedroom home in accordance with <br /> the Minnesota Pollution Control Agency Chapter 7080 and local ordinances. <br /> The periodically saturated soils were located at 12-18 inches(mottled soil). Due to the periodically <br /> saturated soils,a pressurized mound system with 6 inches of rock will need to be installed to treat the septic <br /> effluent.The bottom of the treatment area must be located at least 3' above the saturated soils.This system <br /> is designed with 6 inches of rock. <br /> The soils at a depth of 12"have a percolation rate averaging 18.3 MPI. <br /> All tanks need to be insulated if there is less than two feet of cover over the top of the tanks.Clean outs <br /> must be installed on the end of the laterals for maintenance. <br /> Use 7/32-inch perforations on the laterals. <br /> This system is designed with a 2250-gallon combination septic tank. <br /> A 1300-gallon pumping chamber will need to be installed to lift the effluent to the treatment area. The <br /> power supply and switches must be located outside the manhole and pumping chamber in a weatherproof <br /> enclosure.A warning device must be installed with light and sound devices:this is in case of a pump <br /> failure. A flow measurement device must be installed. Including but not limited to a water meter,event <br /> counter,running time clocks or electronically controlled dosing. <br /> Keep all heavy equipment off of the proposed treatment areas before,during and after construction. <br /> The area around both sites must be fenced off by the contractor before any construction begins. <br /> With proper installation and maintenance,this system should have no problem in treating septic effluent <br /> effectively.Nothing other than gray water,(laundry, showers,etc.)Human water and toilet tissue should be <br /> disposed of into the septic tanks. Garbage disposals are not recommended. Iron filters cannot go into the <br /> septic system. Additives must not be used they may cause harmful damage to your septic system. It is <br /> recommended that you pump the septic tanks every two years. <br /> Sincerely' <br /> t, <br /> Joseph J.Olson <br />