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S•P TESTING, INC. Steven B. Schirmers - MPCA Cert.No. 627 <br />951 Katydid Lane NE - St. Michael, MN 55376 - (612) 497-3566 <br />FAX (612) 497-5011 <br />State License #394 <br />June 19, 1996 <br />Dale Spencer <br />503 Ferndale Rd. <br />Orono, Henn. Co., MN <br />This site has an existing failing On -Site Sewage Treatment System which does not meet <br />the 3' separation from the saturated soil (mottled soil). The system is surface <br />discharging which is an imminent health hazard & must be repaired or disconnected <br />within 10 months. <br />This On -Site Sewage Treatment System is Designed for a Type 1, four bedroom home, <br />Designed in accordance with the Minnesota Poilution Control Agency Chapter 7080 and <br />local ordinances. <br />The soils on this site are SCS soils mapped - HbC - Hayden loam. The seasonally <br />saturated soils were located at 54" to 70" (mottled soil). The bottom of the treatment <br />area must be located at least 3' above the seasonally saturated soils. A Standard <br />shallow Trench System 18" deep, may be installed using gravelless trench. <br />The soils at a depth of 18" have a percolation rate averaging 7.2 mpi. <br />A pumping chamber will need to be installed to lift the septic effluent to the treatment <br />area. The power supply and switches must be located outside the manhole and <br />pumping chamber in a weather proof enclosure. A warning device must be installed with <br />a light and sound device, this is in case of a pump failure. <br />All neighboring wells are located greater than 100' away from the proposed treatment <br />area. <br />