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. . . <br /> 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 /> August 19, 1997 <br /> Spring Hiil Golf Club <br /> Rest Area <br /> Co.Rd.6 � <br /> Orono, Henn. Co., MN <br /> This on-site sewage treatment system is designed for a rest area for 150 golfers at 2 <br /> gal/day/each totaling 300 gal/day, in accordance with the Minnesota Pollution Control <br /> Agency Chapter 7080 and local ordinances. <br /> The soils on this site are SCS soils mapped - HcC2 - Hayden clay loam. The seasanally <br /> saturated soils were located at 18" to 32" (mottled soil). Due to the seasonally saturated <br /> soils, a Pressurized Mound System will need to be installed to treat septic effluent. The <br /> bottom of the treatment area must be located at least 3' above the saturated soils. <br /> The soils at a depth of 12" have a percolation rate averaging 4.6 mpi. <br /> An event counter and water meter will need to be installed. <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 waming device must be installed with a light <br /> and sound device, this is in case of a pump failure. An audio alarm & light must be <br /> installed with an exterior light at the controls in case of a pump failure. There are 2 <br /> options for the pumping chamber. The first is to use dual pumps with an altemating <br /> relay and the second is to install a larger tank with a minimum of 3 days of reserve <br /> storage. <br /> 1 <br />