1974-09-30 Soil Percolatin Test - Laserfiche WebLink

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�= X, A 54S Ird.an Wayzata. M,nnesota 55391 (612)473 4224 ieptember 30, 1974 Mr. -',)!in Burger 3700 Bayside Road Orono, Minnesota SS356 Re: Percolation Test - Orono dear Mr. Burger: On September 11 and 12, 1974, percolation tests were run on your property as shown on the enclosed sketch map. Tests consisted of one soils boring to eight feet in depth and six test holes 24 to 36 inches in depth. Soils encountered were topsoil, silty clay, clay and clay till. No water waF observed. A three-bedroom house is proposed. Percolation rates in the primary drain field area are ten minutes per inch. At this rate, the drain field area required is 500 square feet. At the alternate drain field site the average rate was 16 minutes per inch requiring a drain field area of 600 square feet. Both areas range in altitude from two to six feet below the proposed house site. The adjacent wetlands lies approxir^ately ten feet below the lowest point of each drain field site. It is recommended that a 400 gallon capacity dosing chanber, with siphon, be installed between the septic tanks and the distribution box. It is further recommended that the drain field, if installed at the primary site, consist of four, 100 -foot lines spaced seven feet apart and with two -foot trench bottom widths. All installations should comply with the Orono Individual Sewage Disposal System Code of `tininur; Standards. The proposed water well location, shown on the sketch, would be acceptable for either drain field location.