MN wetland conservation act notice of decision-2012

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CROWFORK SERIES The Crowfork series consist of very deep,excessively drained soils that formed in glacial outwash on stream terraces and outwash plains.These soils have rapid permeability. Slopes range from 1 to 18 percent. Mean annual precipitation is about 29 inches. Mean annual temperature is about 46 degrees F. TAXONOMIC CLASS: Mixed, mesic Psammentic Argiudolls TYPICAL PEDON: Crowfork loamy sand, on a 2 percent slope, in a cultivated field. (Colors are for moist soil unless other wise noted.) Ap--O to 1 1 inches; dark brown (lOYR 3/3) loamy sand, brown (IOYR 5/3) dry; weak very fine subangular blocky structure; very friable; few very fine roots; slightly acid; abrupt smooth boundary. (10 to 13 inches thick) E--11 to 20 inches; brown (lOYR 5/3) loamy fine sand, weak very fine subangular blocky structure parting to single grain; very friable; moderately acid; gradual smooth boundary. (0 to 30 inches thick) E & Bt--20 to 45 inches; brown (lOYR 5/3) fine sand (E); single grain; loose; brown (7.SYR 4/3) loamy sand (Bt), 1/4 to 3 inches tllick, with thin bands of sandy loam; weak mediuin subangular blocky structure; very friable; moderately acid; abrupt irregular boundary. (15 to 40 inches thick) Bt & E--45 to 76 inches; brown (7.SYR 4/4) loamy sand (Bt); about 4 inches apart and l to 2 inches thick; weak medium subangular blocky structure; brown (lOYR 5/3) sand (E'); single grain; about 5 percent shale fragments; slightly acid; clear irregular boundary. (0 to 35 inches thick) C--76 to 80 inches; brown (lOYR 5/3) sand; single grain, loose; neutral. TYPE LOCATION: Wright County, Minnesota; about 4 miles south of Buffalo; about 1,400 feet west and 50 feet south of tl�e northeast cor��er of section 29, T. 1 19 N., R. 27 W.; USGS Howard Lake quadrangle; lat. 45 degrees 5 minutes 39 seconds N. and long. 94 degrees 06 minutes 00 seconds W., NAD83. RANGE IN CHARACTERISTICS: Depth to free carbonates is typically more than 80 inches. Some pedons have carbonates in the lower part of the control section. Depth to lamellae ranges from 10 to 60 inches. The sand size is mostly medium. The rock fragments comprise 0 to 15 percent by volume, in the Bt and C horizons. Most rock fragments are made up of shale. The moisture control section is moist in some or all parts throughout the year in 6 or more out of 10 years. The Ap or A horizon has hue of lOYR, value of 2 or 3, and chroma of 1 to 3. It is loamy sand, loamy fine sand or sand. It is moderately acid to neutral. The E and E' horizons have hue of lOYR or 7.SYR, value of 4 to 6 and chroma of 2 to 4. It is sand, fine sand, loamy tine sand, or loamy sand. It is strongly acid to slightly acid.