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• t ' <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 July 29,2012 ORONO COPY <br /> Stonewood LLC. <br /> 3340 Graham Hill Road <br /> Orono, Hennepin County <br /> This on-site Sewage Treatment System is designed for a Type l, 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 18"-30"(mottled soil). Due to the periodically saturated <br /> soils,a pressurized mound system will need to be installed to treat the septic ef�luent. The bottom of the <br /> treatment area must be located at least 3' above the saturated soils. <br /> The soils at a depth of 12"have a percolation rate averaging 6 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 /> ORONO COPY <br /> Use 7/32 inch perforations on the laterals. <br /> The absorption area of the future site does not encroach into the primary site. <br /> A 1250 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.The manifold and supply line must have back drainage to the pumping chamber. <br /> Keea all heavv equipment off of the proposed treatment areas before,durin�and after construction. <br /> The area around both sites must be fenced off bv the contractor before anv construction be�ins. <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 /> . ........__.,.... . ... <br /> ORONO COPY �Ty OF ORONO <br /> ,� Joseph J.Olson <br /> sFrrcc �uvur IE <br /> 1NSPECTOR <br /> D T � ERMIT NQ <br /> APPROV�D AS 6t18MIT'fED <br /> �] APPROVED WITH CORRECiTIfNS 11s NOTiW <br /> ���� Q NOT APPROHBRCORRECT t RE9UBMt7 <br /> � These commertcs aee for yo�r iafcrautiva Ai!wak abs1141a� <br /> _.,._BEDROOMS, ��Hq���w� iu fnll compliance Mi►h ati applicable ceptic�ad soaia�{cude. <br /> p��� „�+�DL� Itequirements includi�itear�aot rpeciticYlly tated fa iMi�to�MR. <br /> ���+�W�YAUQATES THIS D�� 10EEP THiS PLAN SBT ON StTB AT ALL TIM6i <br />