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�� <br /> � � �7�P TES TINGs ���. Steven B. Schirmers • MPCA Cert.No. 627 <br /> 951 Katydid Lane NE • St. Michaei, MN 55376 • (612) 497-3566 <br /> FAX (612)-497-5011 <br /> State License#394 <br /> April 15, 1999 <br /> �nr+�t <br /> Dan Bergeron �7,�— /��1�f <br /> 1980 6th Avenue <br /> Orono, Henn. Co., MN <br /> This site has an existing on-site sewage treatment system which is classified as failed <br /> due to not meeting the required 3' separation from the bottom of the system and the <br /> saturated soil. <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 tocal <br /> ordinances. <br /> � <br /> The soils on this site are SCS soils mapped - LrC - Lester foam. The seasonatly <br /> saturated soils were located at 36" to 46" (mottled soil). Due to the seasonaliy saturated <br /> soils, a Pressurized Mound System wilt 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 averaging 14.6 mpi. <br /> The existing tanks may be used if water tight and upon approval from the local <br /> Inspector. <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 waming device must be installed with a light <br /> and sound device, this is in case of a pump failure. <br /> 1 <br />