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. , � � ,, �� c�� � <br /> f _x�7�P TES TIMG� I�C. 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 5, 2000 <br /> Lauer Homes, Inc. <br /> Lot 2, Block 1 <br /> Lyman Woods <br /> Orono, Henn. Co., MN <br /> This site was originally tested in November of 1990. The sites were re-evaluated and <br /> the mottled soil depths were verified in the soil borings by compieting soii probings at the <br /> original soil boring locations. Two additional soil borings were completed #5 &6 due to <br /> the lot line changing since the original design. <br /> This on-site sewage treatment system is designed for a Type 1, four bedroom home, in <br /> accordance with the Minnesota Poilution Control Agency Chapter 7080 and I�al <br /> ordinances. <br /> The soils on this site are SCS soils mapped - EnC - Erin loam. The seasonally <br /> saturated soils were located at 12" to 18" (redox features). Due to the seasonally <br /> saturated soils, a Pressurized Mound System will need to be installed to treat septic <br /> effluent. The bottom of the rock must be tocated at least 3' above the saturated soils. <br /> The soils at a depth of 12" have a percolation rate of 21.8 mpi. <br /> A pumping chamber will need to be instalted to lift the eifluent 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 waming device must be installed with a light <br /> and sound device, this is in case of a pump failure. <br /> 1 <br />