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ORONO 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 /> September 23,2015 <br /> Gordon James Construction <br /> 3465 Watertown Road <br /> Orono,Hennepin County <br /> This on-site Sewage Treatment System is designed for a Type 1 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 22"-26"(mottled soil). Due to the periodically saturated <br /> soils,a pressurized mound system will need to be installed to treat the septic effluent. The bottom of the <br /> treatment area must be located at least 3' above the saturated soils.This system is designed with 6 <br /> inches of rock <br /> The future system is a type III because of fill on the site.The fill must be removed. If the future site is ever <br /> used. <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 /> The soils at a depth of 12"have a percolation rate averaging 11 MPI <br /> Use 7/32 inch perforations on the laterals. <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. The manifold and supply line must have back drainage to the pumping chamber. <br /> Keen all heavy equipment off of the proposed treatment areas before durine and after construction <br /> The area around both sites must be fenced off by the contractor before anv 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 /> S* a ely, CITY OF ORONO <br /> SEPTIC PE' IT PLA E IEW <br /> Joseph J.Olson INSPECT R ,.,,,, <br /> DATE P RMIT NO. oo z <br /> APR ED AS SUBMITTED <br /> RAPPROVED WITH CORRECTIONS AN NOTED <br /> NOT APPROVED-CORRECT&RESUBMIT <br /> These comments are for your information. All work shall be dont <br /> in full compliance with all applicable septic and zoning code. <br /> Requirements including items not specifically noted in this review, <br /> KEEP THIS PLAN SET ON SITE AT ALL TIMES <br />