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USURNAN <br />NOINKERINO <br />_ - - INC. <br />C'tuil, bfunicipul & Enlvronmrntal Enginecring <br />Land Surre.ving • Land Planning • .Soil Testing <br />Mr. Brent Primus <br />432 Midland Bk. Bldg. <br />Minneapolis, MN 55401 <br />Re: Proposed lee B. Primus Addition <br />City of Orono <br />Dear Mr. Primus: <br />Mail replies-P O Box 32308 <br />571-6066 <br />6875 Highway No 65 N E <br />Minneapolis. Minnesota 55432 <br />890-6510 <br />12350 River Ridge Blvd <br />Burnsville. Minnesota 55337 <br />Jan. 13,1383 <br />S82244 <br />We performed soil testing for the above referenced project for Lot 1 as re- <br />quested by the City to determine sufficiency of ;.iie parcel to support a sewage <br />disposal system. Initially six percolation tests and three soil borings were <br />performed in accordance with the City Ordinance. Results of these initial tests <br />indicate the parcel to be incapable of supporting a sewage disposal system. <br />Copies of these tests are attached herewith. <br />The proposed plat has been modified to include additional area fur Lot 1 to <br />provide for a sewage system. The additional area includes a dwelling with an <br />existing drainfield. Therefore, two percolation tests and one soil boring were <br />performed in an alternate expansion area as required by City Ordinance. These <br />tests idicate the proposed expansion area is adequate to support a septic <br />system with a standard trench drainfield system. Copies of these tesl5 ace <br />attached herewith. An existing well is located with 75 feet of the alternate <br />drainfield area but is not presently adequate to service the parcel. The well <br />roust be redrilled and will presumably be located outside of the set -back required <br />fo- the drainfield area. <br />In addition, soil testing was performed on this parcel in 1977. This testing <br />indica'..es expansion northerly from the existing drainfield into another alternate <br />lo(ation is possible. Excerpts from the report of the system installed at that <br />time which include this alternate expansion area is enclosed herewith. <br />Based u_ the information obtained from the soils investigation the proposed <br />plat is in compliance with the City seotic requirements for plat approval. <br />S)ncerely, <br />Daniel P. Johnson, P.E. <br />SUBURBAN ENGINEERING, INC. <br />cc Jeanne Mabust.h, (Ity of Orono <br />DPJ/lh <br />enc <br />krw,.N:•:r.• k.-' !•v N,n l I'•... Key 1.,4, 11 key tin i.,,- k tk"• Req 5"..: hr.. 1 %ww•„ Rey F•u/ <br />4— F k•,w„ k.y 1+ 1 1' i .m J (�rr...,M, key 1 ny k. hr.r 4il.. h Key '..., if-. 4 (.ur.rr. Xv4 l,ig tb.rd{' /.Anum lrrp !ny <br />