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's-1p <br /> 3 . p TEST. a. ., 2 TTca Steve;; MP3A Cut. No. 627 <br /> 951 Katydid Lane • St. IMichaei, NDN 55376 • (612) 497-3566 <br /> January 17, 1992 <br /> Jim Cornell <br /> 2145 Watertown Rd. <br /> Orono, Henn. Co. , MN <br /> This On-Site Sewage Treatment System is Designed for a Type 1, four <br /> bedroom home in accordance with the Minnesota Po1lutIon Control <br /> Agency Chapter 7080 and local ordinances . <br /> The soils on this site are SCS soils mapped - HbB - 1-7c.. - ':en loam <br /> bordered by - Ha - Hamel loam. A seasonally high water table <br /> was located at 18" , 20" & 28" , (mottled soil ) . Due to the <br /> seasonally high water table , a Pressurized Mound `; stern will need <br /> to be installed. The bottom of the rock bed must be locate:: at <br /> least 3 ' above the seasonally high water table. <br /> This site has an existing failing system due to a n-L. seasonally <br /> high water table. The existing ta.:k must be abandoned, pumped & <br /> filled with soil . The new outlet must be a minimum of 20 ' <br /> away from the well . <br /> The soils at a depth of 12" have 4 percolation rate averaging; 9 .0 <br /> min/inch and are aut_c;uate for treating septic effluent. <br /> A pumping chamber will need to be installed to ii. the effluent to the <br /> ' treatment area. <br /> The manifold and supply -: pine must hav:: ,back dra-_na(-: to the sur., ins; <br /> chamber. The distribution pipes :ha` .ave their e nCs c._ . -)e,a - Be sur.. <br /> the rock and sand fill m----erial are cican. ` !7,e so,,. liner bele"­ 1_-hk� <br /> entire mounded area must be turned over , uc: break up the sod ,. o-:� sure <br /> not to over work. <br /> The power supply .: nd switches must be located outside the manho -e and <br /> Pm char„ber in a weat.�er proof enclosure . A warring devic` ,dust be <br /> installed a light and .. ound device, this is in case of a pump failure . <br /> (Mercury floats are a goo,: method) . <br /> CONT ' D <br />