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3/3/23,7:34 AM Official Series Description-VALENT Series <br /> LOCATION VALENT CO+KS NE NM OK SO WY <br /> Established Series <br /> Rev.AJC/GB/LAN <br /> 08/2008 <br /> VALENT SERIES <br /> The Valent series consists of very deep excessively drained soils that formed in mixed eolian sands. Valent soils <br /> are on upland dune topography. Slopes range from 0 to 60 percent. The mean annual precipitation is about 41 <br /> centimeters (16 inches) and the mean annual temperature is about 10 degrees C. (50 degrees F.) <br /> TAXONOMIC CLASS: Mixed, mesic Ustic Torripsamments <br /> TYPICAL PEDON: Valent sand, grassland. (Colors are for dry soil unless otherwise noted.) <br /> A--O to 10 centimeters (0 to 4 inches); grayish brown(1 OYR 5/2) sand, dark grayish brown(1 OYR 4/2) moist; <br /> single grain; loose;neutral (pH 7.2); gradual smooth boundary. (8 to 25 centimeters (3 to 10 inches) thick) <br /> C--10 to 152 centimeters (4 to 60 inches); pale brown (I OYR 6/3) fine sand, brown (I OYR 5/3)moist; single <br /> grain; loose; neutral(pH 7.2). <br /> TYPE LOCATION: Washington County, Colorado; 245 meters (805 feet) east and 579 meters (1,900 feet) <br /> south of the NW corner of Sec. 5, T. 1 S., R. 49 W. <br /> RANGE IN CHARACTERISTICS: <br /> Mean annual soil temperature: 8 to 14 degrees C. (47 to 58 degrees F.) <br /> Mean summer soil temperature: 15 to 26 degrees C. (59 to 78 degrees F.) <br /> Depth to secondary calcium carbonate: 102 to 152 centimeters(40 to 60 inches) or more <br /> Organic carbon: 0.3 to 1.5 percent in the surface horizon and decreases uniformly with depth <br /> Partical size control section: <br /> Clay content: 0 to 15 percent <br /> Silt content: 0 to 30 percent <br /> Sand content: 70 to 100 percent <br /> Rock fragment content: 0 to 2 percent, mainly pebbles <br /> Some pedons have weak AC horizons. <br /> A horizon(AC in some pedons): <br /> Hue: 7.5YR to 2.5Y <br /> Value: 4 to 6, 3 to 5 moist <br /> Chroma: 2 to 4 <br /> Texture: sand, but also includes loamy sand, loamy fine sand, or fine sand <br /> Reaction: neutral or slightly alkaline <br /> Organic carbon: less than .6 percent <br /> C horizon: <br /> Hue: 7.5YR to 2.5Y <br /> Value: 5 to 7, 4 or 5 moist <br /> Chroma: 2 to 4 <br /> Reaction: neutral or slightly alkaline <br /> Texture: loamy fine sand, fine sand, sand or loamy sand. <br /> COMPETING SERIES: These are the Calladito, Curtis Siding, Dwyer, Karval, Mido, Orpha, Pensom, <br /> Pinavetes, Tullock and Wigton series. <br /> https://soilseries.sc.egov.usda.gov/OSD_Does/V/VALENT.html 1/3 <br />