1995-007074 - septic replacement system

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S-P TESTING, INC. Steven B. Schirmers — MPCA Cert. No. 627 951 Katydid Lane NE • St. Michael, MN 55376 • (612) 497-3566 May 23 , 1995 Bruce Dayton 900 Old Long Lake Road Orono, Henn. Co. , MN This On-Site Sewage Treatment System is Designed for a Type 1, five bedroom home Designed in accordance with the Minnesota Pollution Control Agency Chapter 7080 and local ordinances . This site has an existing non-conforming system with the bottom being located less than 3 ' from the seasonally high water table, (mottled soil) & is hydraulically overloaded. The existing tanks located northwest of the home will need to be abandoned, pumped & filled with soil & new tanks installed. The tank & system may be used upon approval by the local Inspector, located east of the house used for guest rooms. The system was not found & I recommend to connect to the new system. The soils on this site are a clay loam. A seasonally high water table was located at. 32" & 34" , (mottled soil) . Due to the seasonally high water table, a Pressurized Mound System will need to be installed to treat septic effluent. The soils at a depth of 12" have a percolation rate averaging 11.2 min/inch. A pumping chamber will need to be installed to lift the effluent to the treatment area. The manifold and supply line pipe must have back drainage to the pumping chamber. The distribution pipes shall have their ends capped. Be sure the rock and sand fill material are clean. The sod layer below the entire mounded area must be turned over, just break up the sod, be sure not to over work. The power supply and switches must be located outside the manhole and pumping chamber in a weather proof enclosure. A warning device must be installed with a light and sound device, this is in case of a pump failure. All neighboring wells are located greater than 100 ' away from the proposed treatment area. CONT' D