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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 8, 1998 <br /> Tony Eiden Company <br /> Lot 3, block 1 <br /> Old Crystal Bay Rd., 2nd Add. <br /> Orono, Henn. Co., MN <br /> A Site evaluation was completed on this site for the proposed on-site sewage treatment <br /> system designed on 5-13-94. <br /> The site proposed has been disturbed with construction equipment compacting the soil. <br /> Percolation tests were completed indicating the soils have been compacted. This site <br /> will need the soil turned over 18" deep in the area of the compaction and left for the <br /> future expansion site. This site will no longer be classified as Standard and will need <br /> approval from the city official. <br /> The future site on the design dated 5-13-94 will need to be the proposed site for the <br /> mound system. <br /> This on-site sewage treatment system is designed for a Type 1, five bedroom home, in <br /> accordance with the Minnesota Pollution Control Agency Chapter 7080 and local <br /> ordinances. <br /> The soils at a depth of 12" (#2, 3 &4) have a percolation rate averaging 21.1 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 />