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iNaueid --�i``9&8P\ 0,119 Ve''‘e -tito, 4hc,0 ri e-cd_c <br /> -/-e2 h e dccar�e I n S'�.-019 (j.e/lint( etr�rt�U4 (co K ly <br /> ' 116140 COPY <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 December 6,2017 <br /> Wooddale Builders <br /> 1 180 Hunter Drive <br /> Orono, Hennepin County <br /> This on-site Sewage Treatment System is designed for a Type 1, 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 14-26 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 7 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.Additives must not be used they <br /> may cause harmful damage to your septic system. It is recommended that you pump the septic tanks every <br /> two years. <br /> Sincerely, <br /> � Joseph J. Olson RECEIVED <br /> JAN 122010 <br /> CITY OF ORONO <br />