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t <br /> �t , :� , y' <br /> ,, � . <br /> S-P TE S T'ING, INC.- � � �� . <br /> 951 KATYDID IANE ' <br /> ' ST. MICHAEL, MN 55376 <br /> ' 497-3566 <br /> , Steven B. Schirmers <br /> � . <br /> � November 13, 1990 . <br /> • Marc & Tracy whitehead <br /> � Whitehead Add. , Lot 3 <br /> Orono, Henn. Co. , MN <br /> This system 3s 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 SC6 soils mapped - EnC - Erin . . <br /> loam. A seasonally high water table was located at 12" , 14" & 16" , � <br /> (mottled soil) . Due to the seasonally high water table, a Pressurized � <br /> Mound System will need to be installed. The bottom of the rock bed <br /> must be located at least 3 ' above the seasonally high water table. � � <br /> The soils at a depth of 12" have a percolation rate averaging 19.1 <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 manifold and supply line pipe must have back drainage to the pumping <br /> chamber. The distribution pipes shall have their ends eapped. 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 /> This site has an existing failing system due to strong clay soils & a <br /> high water table. The existtng tanks may be used upon approval by the <br /> local Inspector. � ' <br /> � CONT'd <br /> � ' . <br /> Soil ond Percolation Teita <br /> Sep.tic System Deiign • <br /> � <br />