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, G t K �r�t l �,�/ /�'I t/o� � O� / I�t v �1;' � <br /> . /"� , ,J� / <br /> r <br /> ,�ev �d.t ���.�/ d•�i ,�� ,,,, ; ��„ P.��.�.� ;.! <br /> ar�► <br /> Joseph Olson D.B.A. <br /> lausty Olson's--Soil and Percolation Testing <br /> Joseph J. Olson--MPCA License# 810 <br /> 114$1 Riverview Rd. NE, Hanover, MN 55341 <br /> (763)498-8779 Fax(763) 498-8290 <br /> Apri; 10,2417 ����� ��� <br /> Stonewood LLC. ,���� � <br /> 1150 Pine View Drive <br /> Orono,Hennepin County <br /> This on-site Sewage Treatment System is partially designed for a Type l, five-bedroom home in <br /> accordance with the Minnesota PolIution Control Agency Chapter 7080 and local ordinances. <br /> The periodically saturated soils were located at 16-22 inches(mottled soil). Due to the periodically <br /> saturaced soils,a pressurized mound system will need to be installed to treat the septic effluent.The bottom <br /> of the treatment area must be located at least 3' above the saturated soils. <br /> Due to limited space. The mound rock bed must be split into two 31.5-foot rock beds. <br /> The absorption area af the proposed systems does not overlap. <br /> This svstem_is desi�ned as a level oressurized mound svstem usine 6 inches of rock on the uphill rock <br /> bed and 9 inches of rock on the downhill rock bed Use 7/32 inch oerforations on the laterals <br /> The soils at a depth of 12"have a percolation rate averaging 4 MPI. <br /> All neigt►boring wells are located greater than 100'away from proposed treatment area. <br /> A 2250 gallon septic tanks are to be installed.All tanlcs need to be insulated if therc is less than two feet of <br /> cover over the top of the tanks.Clean outs must be installed on the end of the laterals for maintenance. <br /> A 1300 gallon Darwin nrecast pumping chamber must be installed to lift the ei�luent to the treatment area. <br /> The power supply and switches must be located outside the manhole and pumping chamber in a <br /> weatherproof enclosure. A warning device must be installed with]ight and sound devices;this is in case of <br /> a pump failure.The manifold and supply line must have back drainage to the pump chamber. <br /> Keep all heavy equipment off of the pro�osed treatment areas before,during and after construction <br /> With proper installation and maintenance,this system should have no problem in treatina 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 tanks every two years. <br /> Since , <br /> . Joseph J. Olson <br />