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ct OC a' 9 /�a�.�.� �rt�y Gh <br /> I`NB t e I-c_rct/ vt. a �� p �' �e� ( 7 ��17 <br /> URIGNO <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 /> January 12,2017 <br /> NOR-SON <br /> 540 Willow Drive S. <br /> Orono, Hennepin County <br /> This on-site Sewage Treatment System is designed for a Type I five-bedroom home in accordance with the <br /> Minnesota Pollution Control Agency Chapter 7080 and local ordinances. <br /> The periodically saturated soils were located at 18-28 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 /> All neighboring wells are greater than 100' from proposed treatment areas. <br /> The soils at a depth of 12"have a percolation rate averaging 8 MPI. <br /> A 2250 combination septic tank needs to be installed. <br /> All new tanks need to be insulated if there is less than two feet of cover over the top of the tanks.Clean <br /> outs must be installed on the end of the laterals for maintenance. <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,cunning time clocks or electronically controlled dosing. <br /> Nothing other than arav water.(laundry showers etc ) Human �tiater and toilet titicue should be <br /> disposed of into the septic tanks.Garbage disposals are not recommended Additi%es mint riot he <br /> used:they may cause harmful damage to your septic system It is recommended that N oil nu nip the <br /> tank every year for 1 septic tank,eyery two years for two septic tanks <br /> Sincerely, <br /> Joseph J.Olson <br />