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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 /> May 28, 2000 <br /> Bob & Judy Wyatt <br /> 4220 Watertown Rd. <br /> Orono, Henn. Co., MN <br /> This site has an existing failing on-site sewage treatment system. The existing tanks <br /> are old and will most likely need to be abandoned, pumped and filled with soil. The <br /> tanks may be used if water tight and upon approval from the local Inspector. <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 - Kkc - Kilkenny loam. The seasonally <br /> saturated soils were located at 22" to 36" mottled soil). Due to the seasonally saturated <br /> soils, a Pressurized Mound System will need to be installed to treat septic effluent. The <br /> bottom of the treatment area must be located at least 3' above the saturated soils. <br /> The soils at a depth of 12" have a percolation rate of 13.2 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 /> 1 <br />