1998-010170 - new septic system - Laserfiche WebLink

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s � a��P TESTING� �NC. Steven B. Schirmers • MPCA Cert.No. 627 951 Katydid Lane NE • St. Michael, MN 55376 • (612) 497-3566 FAX (612}-497-5011 State License #394 ;��`��V�� December 1, 1997 oJAN z 7 19�� �,�,. �-� .. <� , Ray Wells #70 Myrtlewood Rd. Orono, Henn. Co., MN This site has an existing on-site sewage treatment system ctassified as faifed due to not meeting the 3' separation from the bottom of the system and the saturated soil. The system is also surface discharging at this time which is classified as an imminent health hazard and must be repaired or disconnected within 10 months. This on-site sewage treatment system is designed for a Type 1, three bedroom home, in accordance with the Minnesota Pollution Control Agency Chapter 7080 and local ordinances. Approval will be needed for the existing well to be 57' from the system. Approval will also be needed for the system to be 13' from the north property line and on a 10% to 12% slope, 6% is required. The existing tanks will need to be abandoned, pumped and filled with soil if not water tight. The new tanks will need approval for a 50' setback from the wetland. The soils on this site are SCS soils mapped - HbC - Hayden loam. The seasonally saturated soils were located at 18" & 24" (mottled soil). Due to the seasonally saturated soils, a Pressurized Mound System will need to be installed to treat septic effluent. The bottom of the treatment area must be located at least 3' above the saturated soils. The soils at a depth of 12" have a percolation rate averaging 13.0 mpi. A pumping chamber will need to be installed to lift the effluent to the treatment area. The power supply and switches must be located outside the manhole and pumping chamber in a weather proof enclosure. A waming device must be installed with a light and sound device, this is in case of a pump failure. Insulate the supply line through the driveway. 1