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Map Unit Description: Platner loam, 0 to 3 percent slopes -- -Weld County, Colorado, Northern <br />Part <br />Weld County, Colorado, Northern Part <br />54— Platner loam, 0 to 3 percent slopes <br />Map Unit Setting <br />Elevation: 4,500 to 5,900 feet <br />Mean annual precipitation: 17 to 19 inches <br />Mean annual air temperature: 46 to 52 degrees F <br />Frost -free period: 140 to 165 days <br />Map Unit Composition <br />Platner and similar soils: 80 percent <br />Minor components: 20 percent <br />Description of Platner <br />Setting <br />Landform: Plains, stream terraces <br />Down -slope shape: Linear <br />Across -slope shape: Linear <br />Parent material: Calcareous loamy alluvium <br />Properties and qualities <br />Slope: 0 to 3 percent <br />Depth to restrictive feature: More than 80 inches <br />Drainage class: Well drained <br />Capacity of the most limiting layer to transmit water <br />(Ksat): Moderately low to moderately high (0.06 to 0.20 in /hr) <br />Depth to water table: More than 80 inches <br />Frequency of flooding: None <br />Frequency of ponding: None <br />Calcium carbonate, maximum content: 10 percent <br />Maximum salinity. Nonsaline (0.0 to 2.0 mmhos /cm) <br />Available water capacity. Moderate (about 8.9 inches) <br />Interpretive groups <br />Farmland classification: Prime farmland if irrigated <br />Land capability classification (irrigated): 2e <br />Land capability (nonirrigated): 3e <br />Hydrologic Soil Group: C <br />Ecological site: Loamy Plains (R067BY002CO) <br />Typical profile <br />0 to 4 inches: Loam <br />4 to 24 inches: Clay <br />24 to 60 inches: Sandy loam <br />Minor Components <br />Ascalon <br />Percent of map unit. 8 percent <br />USDA Natural Resources Web Soil Survey 11/20/2013 <br />Conservation Service National Cooperative Soil Survey Page 1 of 2 <br />