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S-P TESTING, INC. <br />Mary Jane Evans <br />3060 Farview Lane <br />Orono, Henn. Co., MN <br />Steven B. Schirmers — MPCA Cert. No. 627 <br />951 Katydid Lane NE • St. Michael, MN 55376 • (612) 497-3566 <br />August 9, 1'")3 <br />This On -Site Sewage Treatment System is Designed for a Type 1, four <br />bedroom home in accordance with the Minnesota Pollution Control <br />Agency Chapter 7080 and local ordinances. <br />This site has an existing non -conforming system due to the 'bottom of <br />the treatment area being less than 3' from the hig'Zest known water <br />table, mottled soil. The existing tanks may be used upon approval <br />by the local Inspector. <br />The soils at a depth of 12" have a percolation rat? averaging <br />23.7 min inch. <br />A pumping chamber w;.:l need to be installed to lift the effluent <br />to the treatment area. <br />The manifold and supply line pipe must have back drainage to the pumping <br />chamber. The distribution pipes shall have their ends capped. Be sure <br />the rock and sand fill material are clean. The sod layer below the <br />entire mounded area must be turned over, just break up the sod, be sure <br />not to over l.,ork . <br />The power supply and switches must be located outside the manhole and <br />pumpLi,q chamber in a weather proof enclosure. A warning device must <br />be installed with a light ani sound device, this is in case of a pump <br />failure. Mercury floats are a good method. <br />All neighboring wells are located greater than 75' away from the <br />proposed treatment area. <br />Keep all heavy equipment off of the proposed treatment area before and <br />after construction. The treatment area should be marked off before <br />construction. This Desiqn is not valid & the System will need to <br />be relocated if failure to protect the areas proposed for On -Site <br />Sewage Treatment occurs. <br />CONT'D <br />