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04/27/.004 00:07 FAX 7634973566 SP TESTING INC 02 <br /> • <br /> S-P T STING, INC Steven B. Schirmers - MPCA Cert.No. 627 <br /> 951 Katydid Lane NE • St. Michael, MN 55376 • (763) 497-3566 <br /> FAX (763) 497.5011 <br /> Ste I l 94 <br /> h: v R G t,F YP;14 T <br /> h <br /> '.I <br /> April 26, 20 <br /> William Bra en <br /> Coldwell Ba ker- Debbie McNally <br /> 1770 W. Far Rd. <br /> Orono, Hen . Co., MN <br /> This site ha= an existing on-site sewage treatment system which is classified as non- <br /> compliance, ailing under Minnesota Chapter 7080 rules due to not meeting the <br /> required sop=ration from the bottom of the system &the mottled soil (redox features). <br /> The bottom of the system was found at approximately 30" & 36" below gr,gde; e , <br /> mottled soil .:t 22" & 34" below grade. The upgrade period will need Vim,. - • <br /> by the City o Orono. <br /> Soil borings : percolation tests were completed for a new system for a four bedroom <br /> home. Mottl-d soil was found at 26" & 28" below grade. A pressurized mound system <br /> will need to oe installed to treat septic effluent. <br /> The soils at = depth of 12" have a percolation rate of 5.4 mpi. <br /> Keep all he-vy equipment off of the proposed treatment area before and after <br /> construction <br /> The design 'll need to be completed prior to obtaining a building permit. <br /> 'rte' <br /> Steven B. Si hirmers <br /> 1 <br />