Laserfiche WebLink
S'�• fiESTING, INC. Steven B. Schirmers — MPCA Cert. No. 627 <br /> 951 Katydid Lane NE • St. Michael, MN 55376 • (612) 497-3566 <br /> May 23 , 1994 <br /> Robert. Craig Homes <br /> Lot 1, B l�ock 3 <br /> Old Crystal Bay Rd. 2nd Add. <br /> Orono, Henn. Co. , MN <br /> This On-Site Sewage Treatment System is Designed for a Type l, five <br /> bedroom home Desigr.ed in accordance with the Minnesota Pollution <br /> Control Agency Chapter 7080 and local ordinances. <br /> The soils on this site are SCS soils mapped - LrB - Lester loam <br /> bordered by - Co - Cordova silty clay loam. A seasonally high <br /> water table was locatEd at 14" to 20" , (mottled soil) . Due to � <br /> the seasonally high w�ater table, a Pressurized Mound System will <br /> need to be installed. The bottom of the rock bed must be <br /> located at least 3 ' above the seasonally high water table. <br /> The soils at a depth of 12" have a percolation rate averaging <br /> 11.0 min/inch. <br /> A pumping chamber will need to be installed to lift the effluent <br /> to the treatment area. <br /> The manifold and au�ply line pipe must have back drainage to the <br /> pumping chamber. The distribution pipes shall have their ends <br /> capped. Be sure the rock and sand fill material are clean. The <br /> sod layer below the entire mounded area must be turned over, just <br /> break up the sod, be sure not to over work. <br /> The power supply and switches must be located outside the manhole <br /> and pumping chamber in a weather proof enclosure. A warning device <br /> must be installed with a light and sound device, this is in case of <br /> a pump failure. (mercury floats are a good method) . <br /> All neighboring wells are located greater than 100 ' away from the <br /> proposed treatment area. <br /> CONT.' D <br />