2004-P07657 - new septic - Laserfiche WebLink

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S=P TE TINGE INC. Steven B. Schirmers • MPCA Cert.No. 627 951 Katydid Lane NE • St. Michael, MN 55376 • (763) 497-3566 FAX (763) 497-5011 State License#394 May 11, 2004 Mike & Debbie Benedict 25 Orono Orchard Rd. Orono, Henn. Co., MN A site evaluation was completed for the existing property for on-site sewage treatment system placement. The proposal is to construct a new home on this property. Soil probing thro hout the lot found a loam & clay loam soil overlayed with fill soil. The Munsell Colo Chart indicates these soils are saturated less than 12" into the original soil due t the colors having a Chroma of 2 or less &a Hue of 5Y &2.5Y. Due to the fill soil &so Is saturated less than 12", a Standard Onsite Sewage Treatment System cannot b designed on this property. This on-site sewage treatment system is designed for a Ty e 1, four bedroom home, in accordance with the Minnesota Pollution Control Agency C apter 7080.0178 and local ordinances as an Other System. A monitoring plan is required with a minimum of monitoring for hydraulic overloading & monitoring the dai y water use. This will need to be determined by the City of Orono. The system will b a pressurized mound on soils saturated less than 12". The fill soil will be removed u ing a large backhoe with no travel over the septic site to a depth of the original soil (v ry dark gray loam) &then backfilled with a minimum sand depth of 36" at the upslope edge of the rock bed. An Interceptor drain will need to be installed 10' upslope of the upslope toe of the mound. The draintile will be backfilled within 6" of finished grade. To assure long to survival of the system, recommend to install a Class 1, Multi-Flo Aerobic Wastewat r Treatment System which is classified as standard under Minnesota Chapte 7080 rules will be used or a unit that has positive filtration and an alarm equivalent t a Multi-Flo Unit. The highly treated, filtered effluent produced by 1