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Home My WebLink About1977-10-17 Septic System Design Reportt V - SOIL TESTING SERVICES OF MINNESOTA, INC. 2405 ANNAPOLIS LANE SUITE 280 MINNEAPOLIS. MINNESOTA 55441 PHONE 612-559*1900 October 17, 1977 McNulty Construction Company 609 2nd Avenue South Suite 800 Minneapolis, Minnesota 55^02 Attention: Mr. Richard Stover STS Job No. 91201 Re: Soil Percolation Test, Tract E, as Shown on Registered Land Survey No. 1358, Maxwell Bay, Orono, Minnesota. Gentlemen: We were requested by you to perform soil percolation tests at the above refer enced property (see attached sketch). The tests were performed on October 14, 1977» The procedure was performed in accordance with the methods designated by the Minne sota Department of Health, 1971. The attached log sheet indicates the observed percolation rates at each of the test holes (P-1 through P-6). The observed perc olation rates at five of the test holes (P-1 through P-3, P“5, P“6), were within the maximum allowable rate of 60 minutes per Inch, as recommended by the Minnesota Department of Health. Basea on these observations, the installation of an individual soil absorption system will be acceptable in this portion of the area tested. In addition to the above percolation test holes, one (l) test boring was drilled to a depth of 8.0 feet. It is our opinion that the level of the ground water table at the time of testing v/as below that depth. Fluctuations in the water level may occur over a wi'^ range, depending upon the amounts of precipitation, evaporation, surface runoff, and infiltration, which will vary with seasonal changes. William C. Kwasny. P.E. John P. Gnaedinger. P.E. Clyde N. Baker. P.E. James H Overtoom, P.E. R. Eric Zimmerman. Ph.D., P.E. William M. Perpich. P.E. CHICAQO, PEORIA, ROCKFORD, ILLINOIS • WASHINGTON, D.C. • CEDAR RAPIDS, DAVENPORT, DES MOINES, IOWA • KANSAS CITY, WICHITA, KANSAS • BAY CITY, DETROIT, GRAND RAPIDS, MARQUETTE, MICHIGAN • MINNEAPOLIS, VIRGINIA, MINNESOTA • BISMARK, GRAND FORKS, NORTH DAKOTA • FAIRFAX, VIRGINIA GREEN BAY, MILWAUKEE, WAUSAU, WISCONSIN • MADRID, SPAIN • JEDDAH, SAUDI ARABIA • Engineering Analysis/Reports • Construction Quality Control • Foundation Borings and Testing • Environmental Testing and Evaluation V. I V - I i. L i - ■ : ^ • Mr. Richard Stover October 17. 1977 Page two Based on the test results, installation of an individual soil absorption disposal system would be acceptable in the area of test P-1 through P-3, P-5, and P-6, for a recommended design rate of 46 to 60 minutes per inch, requiring a minimum of 330 square feet of absorption area per bedroom. The observed water table in the area is at a depth of greater than 6.5 feet below the existing ground surface, making an absorption system acceptable according to state codes and regulations. The provisions of the "Ordinance and Code Regulating Individual Sewage Olsposal Systems" (1971). as recommended by the Minnesota Department of Health, as well as any local ordinances and codes, should be followed in the design and installation of a disposal system. If you have any questions with regard to this report, please do not hesitate to contact us. Very truly yours, SOIL TESTING SERVICES OF MINNESOTA, INC. Richard Covill Soli Engineer RKC/ljl A > I i ■ 4 r- I lOD ?-4e «-•r f.i I It-l PErfecouA'flO'vl T£<r ♦Vout ^.oe»Ni(?j LocA-rio/4 O CcU-reiS 6^ >eoft>S€r7 ^\i- »v3^oi5pnof4 C'^-sr£:>v\-2’>«2.'* ay PER-^NiSru Of ^joC^CkI Gsf A»4^ La,(i^ j: 3o' "*^12^ , •jC *21?-5. ^'. u20_o e-q^ (Be / CtJJtfcRuUf ^ if RM>Ce ^ :.i«^ \L (i6m»M<^R.<.\HVVA-'»H I *>•* 5' t«Ee LOCATJ^ i'4,i'.u.. 4 S.E.wCntR 6^ \M,RE fEUCfe ---------1*^-------»<-----K ^—- ,, ftPPRo* 35'+siS'»oe6ui4E,iwH*v0feU.B>V'/ S?C^cUVf^o^^ M-& .UC!Wi^j4 _ _ £or 5«:AC.T Ej •Di:tC»i ofo^O. lv,vlv| SOIL TESTING SERVICES OF lllilNNESOTA.INC. 2405 ANNAPOLIS LANE MINNEAPOLIS. MINN. 55441 ^V4KCI*0 Percolation Test Summary Sheet STS .InhNn 91201 Clisnt McNulty Construction Company •w Sit6 Tract E. Maxwell Bay. Orono. Minnesota HOLE NUMBER P-1 P-2 P-3 p-it DEPTH OF HOLE 3.0' Surface Elevation +110.8' 3.0' Surface Elevation +110.3'3.0' Surface Elevation +107.9' Surface Elevation 3.0' +108.0 PERCOLATION RATE MINUTES/INCH 22 i|8 A8 120 SOIL PROFILE DEPTH DESCRIPTION DEPTH DESCRIPTION DEPTH DESCRIPTION DEPTH DESCRIPTION 0-0.5' .5-2.5 2.5-3' Black organic sandy silt topsoil - (OL) Brown sandy clay - (CL) Brown clayey fine to medium sand - (SC) 0-0.5 .5-3.0 Dark gray sandy silt topsoil - siightly organic - (ML) Brown sandy clay - (CL) 0-0.5' .5-3.0 Dark gray sandy silty clay topsoil siightly organic - (CL) Brown sandy clay - (CL) 0-1.0 I 2-3.0' 2-3.0' Black organic sandy silt topsoil - (OL) 1 Brown sandy clay (CL) Brown sandy claye silt - (ML) REMARKS -ji lD-td'l7 Percolation Test Summary Sheet STS .InhNn 91021 »•' Client McNulty Construction Company Sjt0 Tract E, Maxwell Bay, Orono, Minnesota A HOLE NUMBER P-5 P-6 B-1 DEPTH OF HOLE Surface Elevation 3.0' +120.7' Surface Elevation 3.0' +116.8*7.8 I Surface Elevation +110.0* PERCOLATION RATE MINUTES/INCH 34 22 SOIL PROFILE .i. [. J V' iT...■‘f, \ ^ ■. t'rh WJ. DEPTH DESCRIPTION DEPTH DESCRIPTION DEPTH DESCRIPTION DEPTH 0-1.0' 1-2.5 2.5-3' Black organic sandy silt topsoil (OL) Brown sandy clay ~ (CL) Brown clayey fine to medium sand to sandy clay with a 1ittle gravel - (SC-CL) 0-0.5* Dark brown silty fine to medium sand to sandy silt top- soi1 - siightly organic - (SM-ML) .5-2.5'Brown clayey fine sand to sandy clay (SC-CL) 2.5“3' Brown clayey to silty fine sand - (SC-SM) 0-0.5' .5-8.0 Dark gray sandy silty clay top soil - slightly organic - (CL) Brown sandy clay - (CL) DESCRIPTION REMARKS Water Level: Dry AB Dry 24 hours AB McCOMBS-KNUTSON ASSOCIATES, INC. CONSULTING ENGINEERS! LAND SURVEYORS SITE PLANNERS December 8, 1977 Thomas Jacobs City of Orono P.O. Box 66 Crystal Bay, Minnesota 55323 oimiDwiTiTi DEC 12 19'? ■ y 1. VILLAGE OF 0RQN4 Subject:Septic System Application Review McNulty Construction at 3250 Fox Street Dear Tom: At your request of December 5, 1977, we have reviewed the subject application. Based on the percolation test results, we concur with the recommended design factor of at least 330 S.P. of adsorption area per bedroom. Water table problems are not expected to pose a problem, so a standard system is acceptable. We request that the applicant submit a design layout for the septic system (location of proposed house, septic tanks, and drainfield) for both a primary site and alternate site. The elevations of lot corners, the septic system area (both primary and alternate site), and the house foundation should be included in the submittal. Until this information is received, we will be unable to complete our review of the application. If you should have any questions, please advise. Very t^uly ^urs, McCOllbS-KNli^ON/;^SSOCIATES , INC. GF:tS e Frank, P.E. j.; 12805 OLSON MEMORIAL HIGHWmY. MINNEAPOLIS, MINNESOTA 55441 TELEPHONE (612) 559-3700 22 NORTH MAIN STREET, HUTCHINSON, MINNESOTA 55350 TELEPHONE (612) 879-8029 SOUTHWEST ENGINEERING DIVISION, MARSHALL, MINNESOTA 56258 TELEPHONE (507) 532-5820 pifriiyil on Kicvded papui r.-i-.. i ? ■ A McCOMBS-KNUTSON ASSOCIATES, INC. CONSULTING ENGINEERS! LAND SURVEYORS! SITE PLANNERS December 16, 1977 lrI .re 19 1977 i Tom Jacobs City of Orono P.O. Box 66 Crystal Bay, Minnesota Vjl.i AGE OF4 ORONO i 55323 Subject:Septic System Application Review McNulty Construction at 3250 Fox Street 1 Dear Tom: . t We have reviewed the additional septic system application information submitted on the subject site. The proposal is to install a standard on-site septic system with complete gravity flow. The system will consist of two tanks (1000 gallons and 750 gallons) followed by 4 drainfield lines, each 125 feet long X 7 ft. center-to-center x 3 ft. wide trenches. The net drainfield area is therefore 1500 S.F., which is more than adequate for four bedrooms based on the reported percolation rates (ranged from 22 to 48 mpi). The septic system was designed on the basis of 330 S.F. per bedroom, which is the minimum recommended for a percolation rate of 60 mpi. We recommend approval of the application. Very^truly yours, JTSC)N ASSOCIATES, INC. GF:ts McCOMBS- u F enk, P.E. 12806 OLSON MEMORIAL HIGHWAY. MINNEAPOLIS. MINNESOTA 55441 TELEPHONE (612) 558-3700 22 NORTH MAIN STREET, HUTCHINSON. MINNESOTA 55350 TELEPHONE (612) 879-8029 SOUTHWEST ENGINEERING DIVISION. MARSHALL. MINNESOTA 56258 TELEPHONE (507) 532-5820 Dfinted on rccvcieil uauet