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� f . <br /> Joseph Olson D.B.A. <br /> Rusty Qlson's--Soil and Percolation Testing <br /> Joseph.I. Olson--Ml'CA License#810 <br /> 11481 Riverview Rd. NE, Flanover,MN 55341 <br /> (763) 498-8779 Fax (76 - 0 <br /> . _. � _, <br /> * N����1� � <br /> February 26,2015 TH1S DESI��! MU�T <br /> Denali Custom Homes BE ON SITE �C)f� <br /> 4555 Bayside Road }��L INSPECTION� <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 12"-18"(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 ofthe <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 8 MPI. <br /> All tanks need to be insulated if therc is less than two feet of cover over the top of the tanks.Clean ouis <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 pumpin�chamber will need to be installed to lifi the effluent to the treatment area.The <br /> power supply and Switches must be located outside the manl�ole 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 /> K_eep all heavv epuipment off of the proposed treatment areas before during and after construction <br /> The area around both sites must be fenced off bv the contractor before any construction beeins <br /> With proper installation and maintenance,this system should have no problem in treating septic efEluent <br /> effectively.Nothing other than gray water,((aundry,showers,ete.)Human water and toilet tissue should be <br /> disposed of into the septic tanks. Garbage disposals are not recommended.Additives musl not be used they <br /> may cause harmful damage to your septic system. [t is recommended that you pump the septic tanks every <br /> two years. <br /> Sin rely, �'�� 9� �i�� � � _ ��_-r <br /> ` ��� `� _� <br /> � i <br /> Joseph J.Olson Dat� .�-_._. -� 1 <br /> �.._.�.r_.__. � <br /> �F� T rt__ ` . .�, .�� <br /> �"��___�._.._� .. __..,_.......m. <br /> ��r �r��� �a�. ��:�. m��'� >µ� <br />