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S-P TESTING, INC, Steven B. Schirmers • MPCA Cert.No. 627 <br /> 951 Katydid Lane NE • St. Michael, MN 55376 • (612) 497-3566 <br /> FAX (612)-497-5011 <br /> State License#394 <br /> September 23, 1997 <br /> Colson Construction <br /> Lot 2, Block 1 <br /> Rolling Meadows 2nd Addition <br /> Orono, Henn. Co., MN <br /> This on-site sewage treatment system is designed for a Type 1, three bedroom home, in <br /> accordance with the Minnesota Pollution Control Agency Chapter 7080 and local <br /> ordinances. <br /> The soils on this site are SCS soils mapped - SwB - Shorewood silty clay loam. The <br /> seasonally saturated soils were located at 16" to 30" (mottled soil). Due to the <br /> seasonally saturated soils, a Pressurized Mound System will need to be installed to treat <br /> septic effluent. The bottom of the treatment area must be located at least 3' above the <br /> saturated soils. <br /> The soils at a depth of 18" have a percolation rate averaging 4.6 mpi. <br /> A pumping chamber will need to be installed to lift the effluent to the treatment area. <br /> The power supply and switches must be located outside the manhole and pumping <br /> chamber in a weather proof enclosure. A warning device must be installed with a light <br /> and sound device, this is in case of a pump failure. <br /> The manifold and supply line pipe must have back drainage to the pumping chamber. <br /> The distribution pipes shall have their ends capped. Be sure the rock and sand fill <br /> material are clean. The sod layer below the entire mounded area must be turned over, <br /> just break up the sod, be sure not to over work. <br /> All neighboring wells are located greater than 100' away from the proposed treatment <br /> area. <br /> 1 <br />