Laserfiche WebLink
S -P TESTING, INC. <br />951 KATYDID LANE <br />f.T. micimri . NIN 511374 <br />497.3568 <br />STEVE SHIRMERS <br />August 10, 1987 <br />Ervin Geffre <br />4665 Bayside Rcad <br />Orono, Henn. Co., MN. <br />This. system is designed for a Type 1, three bedroom home and in accordance <br />with the Minnesota Pollution Control Agency standards WPC 40 and local <br />ordinances. <br />The soils on this site are typical of SCS soils mapped - KkB - Kilkenny loam. <br />A seasonally high water table was located at 18", 26", 6 28", (mottling). <br />Due to the seasonally high water table, a pressuiized mound system will need <br />to be installed. The bottom of the rock bed must be located at least 3' <br />above the seasonally high water table. <br />The soils at a depth of 18" have a percolation rate averaging 5.7 min/inch <br />and are adequate for treating septic effluent. <br />This site has an existing failing system due to strong clay soils with a <br />seasonally high water table within 36" of the surface. The existing tanks <br />may be used upon approval by the local inspector. <br />A pumping chamber will need to be installed to lift the effluent to the <br />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 work. <br />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 <br />installed with a light and sound device, this is in case of a pump failure. <br />(Mercury floats are a good method). <br />All neighboring wells are located more than 75' away from the proposed <br />treatment area. <br />Keep all heavy equipment off of the proposed treatment area before and <br />after construction as much as possible. The treatment area should be <br />marked off before construction. <br />With proper installation and maintenance, this system should have no <br />problem in treating septic effluent effectively. <br />It is recommended that the septic tanks be pumped every 2 years. <br />Soil and Percolation Tests l i <br />Septic System Design <br />Steven B. Schirmers <br />SBS/ds <br />