1999-01-27_PERMIT FILE - M1999005

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Official Series Description-ENBERG Series • Page 1 of 2 ' LOCATION GLENBERG CO+KS MT NE NM SD UT WY ' Established Series Rev. RJL/RHM/CJH 9/97 GLENBERG SERIES ' The Glenberg series consists of very deep,well drained soils that formed in stratified calcareous alluvium from mixed sources. Glenberg soils are on flood plains and low terraces and have slopes of ' 0 to 8 percent. Mean annual precipitation is about 12 inches and mean annual air temperature is about 52 degrees F. TAXONOMIC CLASS: Coarse-loamy, mixed, superactive, calcareous, mesic Ustic Torrifluvents TYPICAL PEDON: Glenberg sandy loam - grassland. (Colors are for dry soil unless otherwise ' noted) A-0 to 6 inches; light brownish gray(IOYR 6/2)sandy loam, dark grayish brown(IOYR 4/2)moist; ' moderate fine granular structure; soft, very friable; moderately alkaline(pH 8.0); gradual smooth boundary, (4 to 8 inches thick) ' C-6 to 60 inches; light brownish gray(10YR 6/2)sandy loam stratified with thin lenses of loam and loamy sand, dark grayish brown(10YR 4/2) moist; massive; slightly hard, very friable; weak and inconsistent accumulations of secondary calcium carbonate as small concretions; moderately alkaline(pH 8.2). TYPE LOCATION: Crowley County,Colorado; 200 feet south and 720 feet east of the Nl/4 corner of Sec. 17,T. 22 S., R. 58 W. RANGE IN CHARACTERISTICS: Mean annual soil temperature ranges from 47 to 53 degrees F, ' and mean summer soil temperature ranges from 65 to 74 degrees F. Typically, these soils are calcareous throughout, but they may be leached for a few inches in some pedons. Depth to bedrock or strongly contrasting substratums is more than 40 inches. The estimated organic carbon content of ' the surface horizon ranges from .5 to 1.5 percent and decreases irregularly with depth. The control section is predominantly sandy loam, with clay ranging from 5 to 18 percent, silt from 5 to 40 percent, and sand from 50 to 75 percent with more than 35 percent fine or coarser sand. Coarse ' fragments range from 0 to 15 percent but are commonly less than 5 percent. Some pedons may have up to 30 percent coarse fragments in any one horizon but the weighted average of the particle-size ' control section is less than 15 percent. Visible secondary calcium carbonate as soft concretions or thin seams occurs inconsistently at any depth. The A horizon has hue of 2.5Y or 10YR, value of 5 to 7 dry, 3 to 5 moist, and chroma of 2 to 4. It is ' fine sandy loam or sandy loam. It is neutral through moderately alkaline. It is soft or slightly hard. The C horizon has hue of 2.5Y or 1 OYR, value of 5 to 7 dry,4 or 5 moist,and chroma of 2 or 3. It is ' moderately alkaline or strongly alkaline. Calcium carbonate equivalent ranges from less than 1 to 3 percent but is variable from pedon to pedon and from stratum to stratum with a single pedon.