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i <br /> S�P TESTING, INC. Steven B. Schirmers — MPCA,Cert. No. 627 <br /> I 951 Katydid Lane NE • St. Michael, MN 55376 • (612) 497-;3566 <br /> I <br /> December 11 , 1993 <br /> Coffin site <br /> Lot 5 , Block 1 <br /> Orono, Henn . Co. , MN <br /> This On-Site Sewage Treatment System is Designed for a Type l, five <br /> bedroom home in accordance with the Minnesota Pollution Control <br /> Agency Chapter 7030 ar.�? lccal o�dinalices . <br /> The soils on this si�e are SCS soils mapped - KkB - I<ilkenny loam. <br /> A seasonally high wate� table was lccated at 16" to 28" , (mottled <br /> soil ) . Due to the seasonally high water table, a Pressu�-izec� <br /> Mound System will need to be installed . The bottom of the rock <br /> bed r�ust be locatecl at �east 3 ' above the seasonally high �,�ater <br /> table . <br /> The soils at a depth of 12" have a percolaticn rate averaging <br /> 6 . 5 min/inch. <br /> A purping charrrer will r.�ed to be installed to litt the effluent <br /> to the treatrnent ar�a . <br /> The manifold and supply lir.e pipe must have back drainage to the pun�ing <br /> chamber. The distri�utien. pipes s?zall have tlieir e�zds capped . Be sure <br /> the rock and �ai:e f i�1 rr,at�ria 1 are c Iean . ^'ze soc? layer be low the <br /> entire mounded area must be turned over, just break up the sod , be sure <br /> not to over work. <br /> The pocaer supply and switches must be located outside the manhole and <br /> ptzmping chambe.r in a wea.ther proof enclosure. A warning device must <br /> be installed with a light and sound device, this is in case of a pump <br /> failure . (mercury floats are a good method) . <br /> All neighboring wells �r_e locate� r.�eater than 100 ' away from the <br /> proposed treatment area . <br /> CONT ' D <br />