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Hakanson <br />Anderson <br />As-, :., Inc. <br />January 12, 1987 <br />Mr. David Nitz <br />950 Red Sandstone Road, #41 <br />Vail, CO 81658 <br />Dear Mr. Nitz: <br />Enoneers, Surw pots & <br />Landscape Archk cis <br />At your request a site evaluation to determine soil suitability for <br />an on -site sewage treatment system was performed at Lot 12, Block <br />1, Farview in the City of Orono, Minnesota. Standard methods of <br />percolation testing were employed. Elevations are relative to an <br />assumed elevation of 104.0 based at a double spike in a birch tree <br />near the southwest property corner as set by Strgar-Roscoe-Fausch <br />Inc. (see enclosed sketch). <br />This report includes: <br />1. Soil boring logs <br />2. Percolation test results <br />3. Testhole location and septic system configuration sketch <br />4. Septic system design specifications <br />5. Discussion and recommendations. <br />The soil boring logs show that sandy loam to sandy clay loam <br />surface soils overlie sandy clay loam to clay subsur-face soil <br />horizons. Soil mottling begins at 2.0 ti 2.5 feet depth at the <br />b,�reholes. Soil mottl,2s (spots of contrasting color) are accepted <br />indicators of periodic saturation in soils. Gleying begins at 2.0 <br />to 5.0 feet depth at the bcreholes. Gleying (dull gray soil color) <br />forms in soils which are saturated and Ln a chemically reduced <br />condition for long periods of time. Ground water was at elevation <br />94.1 to 94.8 at the boreholts or Tanuary 9, 1987. <br />Percolation test results are as follows: <br />Hole Elevation Depth (inches) <br />Soil Texture at <br />Bottom cf Hole <br />Percolation Rate <br />min ink_ <br />P-1 <br />98.4 <br />24 <br />Sandy <br />loam <br />3 <br />P-2 <br />98.1 <br />24 <br />Sandy <br />loam <br />to sandy 9 <br />clay <br />loam <br />P-3 <br />96.6 <br />18 <br />Sandy <br />clay <br />loam 5 <br />P-4 <br />95.8 <br />18 <br />Sandy <br />clay <br />loam 8 <br />P-5 <br />98.6 <br />24 <br />Sandy <br />cl--y <br />loam 5 <br />P-6 <br />96.8 <br />24 <br />Sandy <br />clay <br />loam 6 <br />222 Monroe Street Eugene 1. Hakanson. PL <br />Anoka. Minnesota 55303 James M. Wlnter. L.S. <br />Lawrence G. Koshak, PL <br />612/427-5860 Peter R Raadkka. PE.. <br />