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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 1/17/13 ORONO COPY <br /> May 1,2012 <br /> Mike Olson <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"-20"(mottled soil). Due to the periodically saturated <br /> soils,a pressurized mound system will need to be installed to treat the septic effluen�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 ]0 MPI. <br /> All taolcs 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 /> A 1300 gallon pumping chamber will need to be installed to lift the et�luent 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 /> Keep sll heavy equipment off of the oroposed 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 harmfW damage to your septic system. It is recommended that you pump the septic tanks every <br /> two years. <br /> 'ncerely, <br /> ' Joseph J.Olson ORONp Cppi, CITY OF ORONO <br /> SFPTIC PERMI�' P,�A,Ti`R�IE���� <br /> INSPFCTUR �C,.l.f`,(���,� <br /> DATF - PF;RM[T NO. <br /> nr�ruuvr.n ns s�;t3w rrrn <br /> tn�S�7���IS DwIu1�Gv Tv+� � ��'�'«������f��1'ITH C'ORkF•,CTlONS AS NOTED <br /> [� KOl�APPRO�'EO-COKkf,CT&RF:Sl:H�11T <br /> ,,,�BEDROOMS. ANY{NCRfASE tAt NUMBER T��«��������i,��,�,=�r�li�r your inli�rmation. All work shall be dvn� <br /> in full cumrliancc�oith all uprlicahlc scptic unJ zuning cudc. <br /> Of BEDROOMS iNVALIDAT�S�HtS DESIGN. rt<<�<<���,,,�„t,;;,��„��;,,�;i�,,,,not,pecificuily nuied in thisreview. <br /> KI.[:P"fHIS PL��X Siif OK Sf�C'AT ALL TIMGS <br /> / <br /> � <br /> -- � _ -- � <br />