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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 /> II481 Riverview Rd.NE,Hanover,MN 55341 <br /> (763)498-8779 Faz(763)498-8290 �������� <br /> Revised June 17,2014 <br /> Paul Assen JUN 2 0 2014 <br /> 1570 6'�Ave.NE <br /> Orono,Hennepin County CITY OF ORONO <br /> This on-site Sewage Trealment System is designed for a Type lfour-bedroom home in accordance with the <br /> Minnesota Pollution Control Agency Chapter 7080 and local ordinances. <br /> The periodically saturated soils were located at 24-46 inches(mottled soil).Due to the periodically satwated <br /> soils,a pressurized mound system will need to be installed to treat the septic eftluent.The bottom of the <br /> treatment area must be tocated at least 3'above the saturated soils. <br /> A variance from City code will be needed to be closer than 50 feet from the existing wetland.There are no <br /> other options for this lot.State code has no setbacks from wetlands. <br /> The existing septic system does not conform to the state code chapter 7080 <br /> All neighboring wells are greater than 100'from proposed treatment areas. <br /> The soils at a depth of 12"have a percolation rate averaging 3-10 MPI. <br /> The e�cisting sepric tanks may be used upon approval of the inspector.If the tanks must be abandoned and two <br /> new 1300 gallon and 1000gallon septic tanks need to be installed. <br /> If existing tanks may be used upon approval of the local inspector.A Darwin urecast 1500 gallon split tank <br /> needs to be installed in reverse. Use the 1000 gallon side for the new lift station.The 500 gallon side is used <br /> as a septic tank to meet the 2250 gallon septic capacity code.The power supply and switches must be located <br /> outside the manhole and pumping chamber in a weatherproof enclosure.A warning device must be installed <br /> with light and sound devices;this is in case of a pump failure. <br /> All new tanks 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 /> Nothin¢other than¢rav water.(laundrv,showers,etc.)Human water and toilet tissue should be <br /> disaosed of into the seatic tanks.Garbase disaosals are not recommended.Additives must not be <br /> used;thev mav cause harmful damaee to vour septic svstem.It is recommended that vou pump the <br /> tank everv two vears for two seatic tanks. <br /> Sincerely, <br /> ..-'� � ` � <br /> r ��'�� <br /> Joseph J.Olson <br /> i-- <br /> � <br />