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Map Unit Des cription—Larimer County Area, Colorado; and Weld County, Colorado, Southern <br />Part <br />136—Water <br />Map Unit Composition <br />Water.' 95 percent <br />Minor components: 5 percent <br />Estimates are based on observations, descriptions, and transects of the <br />mapunit. <br />Description of Water <br />Setting <br />Landform: Lakes, rivers <br />Minor Components <br />Aquents <br />Percent of map unit: 5 percent <br />Landform: Marshes <br />Down-slope shape: Linear <br />Across -slope shape: Concave <br />Hydric soil rating: Yes <br />Weld County, Colorado, Southern Part <br />3—Aquolls and Aquents, gravelly substratum <br />Map Unit Setting <br />National map unit symbol: 3627 <br />Elevation: 4,000 to 7,200 feet <br />Mean annual precipitation. 12 to 18 inches <br />Mean annual air temperature: 45 to 55 degrees F <br />Frost -free period: 80 to 155 days <br />Farmland classification: Prime farmland if drained and either protected <br />from flooding or not frequently flooded during the growing season <br />Map Unit Composition <br />Aquolls and similar soils: 55 percent <br />Aquents, gravelly substratum, and similar soils: 30 percent <br />Minor components: 15 percent <br />Estimates are based on observations, descriptions, and transects of the <br />mapunit. <br />Description of Aquolls <br />Setting <br />Landform: Flood plains, swales, streams <br />Down-slope shape: Linear <br />Across -slope shape: Linear <br />Parent material: Recent alluvium <br />USDA Natural Resources Web Soil Survey 11/9/2016 <br />�� Conservation Service National Cooperative Soil Survey Page 11 of 22 <br />