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t <br /> ��P TESTl11►G� IIYC. Steven B. Schirmers � MPCACert.No. 627 <br /> 951 Katydid Lane NE • St. Michael, MN 55376 • (763) 497-3566 <br /> FAX (763)-497-5011 <br /> State License #394 <br /> ,. <br /> August 3, 2004 <br /> Tom & Michelle Cullum <br /> 785 No. Ferndale Rd. <br /> Orono, Henn. Co., MN <br /> This site has an existing on-site sewage treatment system which is surFace discharging. <br /> The system is classified as an imminent health hazard which must be repaired or <br /> disconnected within 10 months or as determined by the City of Orono. The existing <br /> tanks are deep & will need to be abandoned, pumped & filled with soil. <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 on this site are clay loam. The seasonally saturated soils were located at 24" <br /> to 32" (mottled soil). Due to the seasonally saturated soils, a Pressurized Mound <br /> System will need to be installed to treat septic effluent. The bottom of the rock must be <br /> located at least 3' above the saturated soils. <br /> The soils at a depth of 12" have a percolation rate of 8.9 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 />