1994-10-19_PERMIT FILE - M1994093

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• SOILS DESCRIPTION ADAMS COUNTY, COLORADO • LOAMY ALLUVIAL LAND , MODERATELY WET (Lw) is in many drainageways throughout the county. It is predominantly in the broader drainageways that have a high water table and that formerly had poor drainage. The areas are broad in the larger and more gently sloping drainageways , especially in the South Platte River bottom. All are • subject to damage , in varying degrees , by flooding from adjacent slopes and main stream channels. Included in mapping are small areas of Nunn loam, Satanta loam, Wet alluvial land , and Loamy alluvial land , gravelly substratum. The soils are moderately deep , ranging from 20 to 36 inches in depth, over unconsolidated sand and gravel . They are dark-colored loam • to clay loam in texture and generally are stratified. They are normally noncalcareous , but. they are moderately influenced by soluble salts in places. Thin lenses of sand , silt , or fine gravel may be in any of the layers. The soils of this land type absorb water at a moderate to slow rate , and the available water capacity is high. Artificial drainage • is generally needed to grow crops. Natural fertility is high , but under the intensive management used on these soils , artificial supplements are needed. Most of this land type is irrigated. In these areas , crops such as sugar beets , corn , small grains , and vegetables can be grown. Alfalfa and irrigated pasture are well adapted. Western wheatgrass , • saltgrass , blue gramma , and switchgrass are grown in some areas. Capability Unit IIIw-1 , irrigated; not placed in a range site; tree planting suitability group 5. • • • • SOIL SURVEY OF ADAMS COUNTY, COLORADO; USDA, Soil Conservation Service in cooperation with Colorado Agricultural Experiment Station , October 1974 . •