Laserfiche WebLink
Weld County, Colorado, Southern Part <br />1—Altvan loam, 0 to 1 percent slopes <br />Map Unit Setting <br />National map unit symbol: 361j <br />Elevation: 4,500 to 4,900 feet <br />Mean annual precipitation: 14 to 16 inches <br />Mean annual air temperature: 46 to 48 degrees F <br />Frost-free period: 130 to 150 days <br />Farmland classification: Not prime farmland <br />Map Unit Composition <br />Altvan and similar soils:90 percent <br />Minor components:10 percent <br />Estimates are based on observations, descriptions, and transects of the mapunit. <br />Description of Altvan <br />Setting <br />Landform:Terraces <br />Down-slope shape:Linear <br />Across-slope shape:Linear <br />Parent material:Old alluvium <br />Typical profile <br />H1 - 0 to 10 inches: loam <br />H2 - 10 to 25 inches: clay loam <br />H3 - 25 to 60 inches: gravelly sand <br />Properties and qualities <br />Slope:0 to 1 percent <br />Depth to restrictive feature:More than 80 inches <br />Drainage class:Well drained <br />Runoff class: Low <br />Capacity of the most limiting layer to transmit water (Ksat):Moderately high to high <br />(0.20 to 2.00 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:5 percent <br />Available water supply, 0 to 60 inches: Low (about 5.7 inches) <br />Interpretive groups <br />Land capability classification (irrigated): 3s <br />Land capability classification (nonirrigated): 4e <br />Hydrologic Soil Group: B <br />Ecological site: R067BY002CO - Loamy Plains <br />Hydric soil rating: No <br />Minor Components <br />Cascajo <br />Percent of map unit:9 percent <br />Hydric soil rating: No <br />Custom Soil Resource Report <br />13