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U}4--1eAz> <br />-71 <br />S-P TESTING, INC. <br />951 KATYDID LANE <br />ST. MICHAEL, MN 55376 <br />497-3566 <br />Steven B. Schirmers <br />October 3, 1989 <br />Paul Bayke <br />Lot 1, Block 1 F. 1/2 <br />Lauranne Woods <br />Orono, Henn. Co., MN <br />This system is Designed for a Type 1, four bedroom home and in accordance <br />with the Minnesota Pollution Control Agency Chapter 7080 and local <br />ordinances. <br />The soils on this site are typical of SCS soils mapped - HID - Hayden <br />Complex. A seasonally high water table was located at 46" & 4811, <br />(mottled soil). A shallow trench system may be installed (future <br />expansion area) 12" deep with a minimum of 12" of loam cover over <br />the rock. The soil surface between the trench must be turned over <br />typical of a mound system. <br />The soils at a depth of 12" have a percolation rate averaging 7.9 <br />min/inch and are adequate for treating septic effluent. <br />A pumping chamber will need to be installed to lift the effluent to the <br />treatment area. <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). The supply line pipe must have back <br />drainage to the pumping chamber. <br />The present syst�-m is functioning properly at this time. Testing was <br />copmleted for the future expansion area for the existing house. The <br />existing system is a shallow trench system 12" deep with 2-1000 gallon <br />tanks. <br />All neighboring wells are located more than 100' away from the proposed <br />treatment area & 75' away on this site. <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 />CONT'D <br />Soil and Percolation Testa <br />Septic System Design <br />