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• • r <br /> S�P TES TING� I��. Steven B. Schirmers • MPCA Cert.No. 627 <br /> 951 Katydid Lane NE • St. Michael, MN 55376 • (612) 497-3566 <br /> FAX (612)-497-5011 <br /> State License#394 <br /> /2 sa �y��.n A��� <br /> REVISED <br /> October 9, 200� <br /> Archetype Builders� lnc. <br /> Lot 1, Lyman Woods <br /> Orono, Henn. Co., MN <br /> This on-si#e sewage treatment system is designed for a Type 1, four bedroom home, in <br /> accordance with the Minnesota Pollution Control Agency Chapter 7080 and toca! <br /> ordinances. <br /> The soils on this site are SCS soils mapped - EnC - Erin loam. The seasonally <br /> saturated soils were located at 12" #016" (mottted soil). Due to the seasonally saturated <br /> sails, a Pressurized Mound System will need to be instalfed to treat septic effluent. The <br /> bottom of the treatment area must be located at least 3' above the saturated soils. <br /> An Interceptor Drain will need to be installed 10' from the tce of the mound a minimum of <br /> 4' deep using drain tile with filter cloth. The first 100'will be backfilled with 3/4" to 2-1/2" <br /> diameter roc{c writhin 12" of the surface and finish off the backfille wi#h loam soil. The <br /> total lin.ft. of tile is 180'. <br /> The soils at a depth of 12" have a percotation rate of 30.0 mpi. <br /> A lift pump will be needed in the lower level to keep the tanks shallow� 75' from the <br /> wetland. <br /> A pumping chamt�r will need to be installed to tift the effluerrt to the treatment area. <br /> The power supply and switches must be located outside the manhole and pumping <br /> chamber in a weather pr�f enclosure. A waming device must be installed with a light <br /> and sound device, this is in case of a pump failure. <br /> 1 <br />