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<br />MAPPING UNIT DESCRIPTION <br />Delta-Montrose Survey Area <br />Mapping Unit: Mesa Gravelly Clay Loam <br />Position: Old high terraces and alluvial fans. <br />Drainage: Well drained, unless influenced by foreign water sources. <br />Slope: 2 to 5 percent <br />Mob <br />Soil Profile: Texture Thickness Permeability <br />Gravelly Clay Loam 0-8" I.0-1.5"/hr. moderate <br />Clay Loam 8-30" 2.0-4.0"/hr. moderately rapid <br />Underlying material is very Gravelly clay Loam to 60" or more. <br />Available water capacity for the 30" rooting depth is 4.8". <br />Erosion Hazard: Moderate from wind and water. <br />Capability Unit: VIe-I Non-irrigated, IIIe-1 Irrigated. <br />Range site: Stony salt desert <br />Other Features: <br />Tillage is difficult because of gravel and cobblestone. <br />Soil reaction 7.4-7.8 pH mildly alkaline <br />Low salinity 2.0-4.0 Mmfios/cm <br />Low dispersion <br />Low shrink-swell potential <br />Suitability for: <br />Topsoil <br />Sand <br />Gravel <br />Roadfill <br />Dikes, diversion <br />Embankments <br />Reservoir Area <br />Irrigation <br />Degree of limitation for: <br />Filter fields <br />Homesites <br />Poor <br />Fair <br />Good if washed and screened. <br />Good <br />Good stability, slow permeability if compacted. <br />Good Stability, slow permeability if compacted. <br />Poor, subject to moderate or high seepage: <br />Well suited, erodible on slopes of more than 5 percent. <br />Slight, normally well drained <br />Slight <br />