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1 c‘i5 Shut"' <br /> Rusty Olson's--Soil and Percolation Testing <br /> Joseph J. Olson--MPCA License #810 <br /> 11481 Riverview Rd. NE, Hanover, MN 55341 <br /> (763) 498-8779 fax (763) 498-8290 <br /> September 20,2005 <br /> Suad Azhari&Omar Abukhadra <br /> Proposed Lot 1 <br /> 1745 Fox Street <br /> Orono,Hennepin.County <br /> This on-site Sewage Treatment System is partially designed for a Type 1,five-bedroom home in accordance <br /> with the Minnesota Pollution Control Agency Chapter 7080 and local ordinances. <br /> Once the house size,location and septic site are chosen this design can be completed. <br /> The seasonally saturated soils were located at 14"-22"(mottled soil). Due to the seasonally saturated soils, <br /> a pressurized Mound System will need to be installed to treat septic effluent. The bottom of the treatment <br /> area must be located at least 3'above the saturated soils. <br /> The soils at a depth of 12"have a percolation rate averaging 5 MPI. <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 a light and sound device;this is in case of a pump failure. <br /> Keep all heavy equipment off of the proposed treatment areas before and after construction. The <br /> treatment area must be fenced off before construction begins. This Design is not valid&the System <br /> will need to be relocated if failure to protect the areas proposed for the On-Site Sewage Treatment <br /> systems occurs. <br /> Nothing other than gray water,(laundry,showers,ect.)human water&toilet tissue should be disposed of <br /> into the septic tanks. Garbage disposals are not recommended. Additives must no be used,they may cause <br /> harmful damage to your septic system. It is recommended that you pump the septic tank every year for 1 <br /> tank,every two years for two tanks. <br /> Sincerely, <br /> / Joseph J. Olson <br />