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� <br /> . . <br /> -� T�STINC�� e��. Steven B. Schirmers • MIPCA Cert.No. 627 <br /> 951 K�itydid Lane NE • St. Michaei, MN 5537Fi • (763) 497-3566 <br /> FAX (763)-497-5011 <br /> State License #394 <br /> �Vssi�=�� �;:��= `�1�`� <br /> � <br /> ''��-a, `-'?`.,'-�� '�4' �,``� �, . <br /> / <br /> L� I <br /> �� <br /> October 6, 2010 <br /> Tom McCaffrey <br /> 4265 Chipp�vva Lane <br /> �rono, Henn. (;o., MN <br /> This site ha� an existing on-site sewage treatment system which i� classified as failed, <br /> non-compliant on record at the City of Orono. <br /> This on-sifie �ewage treatment system is designed for a Type 1, three bedroom horne, <br /> in accordance with the Minnesota Pollution Control Agency Chapter 7080 and local <br /> ordinances. <br /> The sails on this site are a clay loam. The periodically saturated soils w�re located at <br /> 18" to 2�4" (r�dax features). Due to the seasonally saturated soils, a Pressurized <br /> Mound Syst�m will need to be inst�lled to treat septic efffuent. The bottam of the rock <br /> must be Ic�cated at lea�t 3' abo�e the saturated soils. <br /> The soils at �� depth of 12" have a percolation rate of 8.0 mpi. <br /> A pumping chamber witl need to b� installed to lift fihe 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 enc�losure. A warr�ing device must be install�d with a light <br /> and sound d�:vice, this is in ca�e of a pump failure. <br /> Due to the total water from the home needing to pass through the lift �ump in the Icawer <br /> level, use du�l pumps with alternating relay with an alarm. <br /> 1 <br />