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. . ��3� �r�G�aw�. �-1 ll �aQ.d <br /> Rusty Olson's--Soil and Percolation Testing <br /> Joseph J. Olson—MPCA License#810 <br /> 11481 Riverview Rd. NE,Hanover,MN 55341 <br /> ORONt) C���'� (763)498-8779 Faz(7b3)498-8290 <br /> OR{JN4 COPY <br /> Revised June 24,2009 <br /> 'Thomas Bren Homes Inc. <br /> Lot 4,Block 1 Graham Hill Preserve <br /> Orono,Hennepin County <br /> T"his on-site Sewage Treahnent System is designed for a Type 1 five-bedroom home in accordance with the <br /> Minnesota Poliution Control Agency Chapter 7080 and local ordinances. <br /> The periodically saturated soils were located at 16"-30"(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 /> All neighboring wells aze greater than 100'from proposed treahnent areas. <br /> T'he soils at a depth of 12"have a percolation rate averaging 9 MPI. <br /> Ail new tanks need to be insulated if there is less than two feet of cover over the top of the tanks and a filter <br /> installed on the second tank.Clean outs must be installed on the end of the laterals for maintenance. <br /> Use 7/32 inch cerforations on the laterals. <br /> Keea all heaw Eauipment offthe proposed treatment areas before during and after construction <br /> A p�unping chamber will need to be installed to lift the ef�luent to the treatment area. The power supply and <br /> switches must be located outside the manhole and pumping chamber in a weatherproof enclosure. A <br /> warning device must be installed with light and sound devices;this is in case of a pump failure.7'he <br /> manifold and suppiy line must have back drainage to the pump chamber.The rock and fill materials must <br /> be clean.T'he sod layer below the entire mounded azea must be turned over.Just break up the sod and be <br /> sure not to over work <br /> Nothin�other than erav water (laundrv,showers,etc.) Human water and toilet tissue should be <br /> disaosed of into the seatic tanks. Garbaee disposals are not recommended Additives must not be <br /> used: thev mav cause harmful damaEe to vour seutic svstem It is recommended that vou aumu the <br /> tanks everv two vears. <br /> Sincerely, <br /> f --"___,_""'---� <br /> QRaNfl G4P'S!' <br /> Joseph J.Olson C1TY C1F ORnNQ <br /> s�PTrc r�r�.�ti�� �t�v � <br /> rn�st�F�;���r��r�� �� . <br /> DATF� r' �.:���E=.R�91T Nn. <br /> ��; ����;�,,�� r� ��:;t��tivi�r i'�t� <br /> ������������ � ,�1'.�;t(;1�� I�� ',i�l�i}I��nIiREC�I'If)V'S ASNOT� <br /> � '�'t)f �APi�ki1V'r'.I,_(�nl«P.(`I�Sc Rf•.SL;RMIT <br /> �,BEDROOMS. ANY INCREASEINtltl�ll Tn�,���,�,,,,,",�,,,��r�,r�<,�,� �„���,��».����,,,. �u work shaH4� <br /> ��D��A���A1 1�'j�j��� (p full cumpliancc with a11 s�pnli�+�n;���y�tic,ind•r.oning CW� <br /> i\ N/ �uA <br /> RBquirements including itcmti not tircciiically notcdiA <br /> �T�s F1.nN s�T�n srri.-�r ��.�. ri:�CsS <br />