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Rusty Olson's--Soil and Percolation Testing <br /> Joseph J. Olson—WCA License#810 <br /> 11481 Riverview Rd. NE,Hanover,MN 55341 <br /> (763)498-8779 Fax(763)498-8290 <br /> June 25,2009 OROM C WT <br /> Bruce Hall 45Z '" t- <br /> 3045 Watertown Road <br /> Orono,Hennepin County <br /> This on-site Sewage Treatment System is designed for a Type 1 Three-bedroom home in accordance with <br /> the Minnesota Pollution Control Agency Chapter 7080 and local ordinances. <br /> The periodically saturated soils were located at 22-24(mottled soil).Due to the periodically saturated soils, <br /> a pressurized mound system will need to be installed to treat the septic effluent.The bottom of the treatment <br /> area must be located at least 3'above the saturated soils. <br /> All neighboring wells are greater than 100 feet from proposed treatment areas. <br /> The soils at a depth of 12"have a percolation rate averaging 3 MPI. <br /> The existing tanks must be abandoned. ORONO COPY <br /> The supply line must be insulated under the driveway. <br /> All 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 /> A pumping chamber will need to be installed to lift the effluent 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.The <br /> manifold and supply line must have back drainage to the pump chamber.The rock and fill materials must <br /> be clean.The sod layer below the entire mounded area must be turned over.Just break up the sod and be <br /> sure not to over work. <br /> 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 <br /> used,•they may cause harmful damage to your septic system. It is recommended that you pump the <br /> tank every year for 1 tank,every two rears for two tanks. <br /> Sincerely, <br /> ORONO COPY (W <br /> Joseph J.Olson WMC <br /> vamcrm L= <br /> & PEOW 106- <br /> Off Allthd411"l1�0 <br /> D0 <br /> APP WaU WVIV CIDRREGtR1N�1�N» <br /> linPAPPRLIYO-MM=4RMWWA 'f <br /> ��� ` '{'lea aa+aw�b aat!btl�6dforawioa.Alt wwk slu�>rs+bli�1 <br /> It!Wt e/eppliap wltb•p spPticsble�ia1 arsMR eaM. <br /> p0 ►� tllli #I : 1 WraAs xu.Uwal <br />