30 112TH ST SE 2020-05-06 - Laserfiche WebLink

• Schaffer SFR • Mean annual precipitation: 30 to 60 inches • Mean annual air temperature: 48 to 52 degrees F • • Frost-free period: 150 to 180 days • Farmland classification: Prime farmland if drained Map Unit Composition • Mckenna and similar soils: 85 percent • Minor components: 11 percent • Estimates are based on observations, descriptions, and transects of the mapunit. • Description of Mckenna Setting • Landform: Depressions, drainageways • Parent material: Basal till Typical profile • • Hi - 0 to 8 inches: gravelly silt loam • H2 8 to 33 inches: gravelly silt loam • H3 - 33 to 60 inches: very gravelly sandy loam Properties and qualities • Slope: 0 to 8 percent • • Depth to restrictive feature: 20 to 40 inches to densic material • Natural drainage class: Poorly drained • Capacity of the most limiting layer to transmit water(Ksat): Very low to moderately high (0.00 to 0.20 in/hr) • Depth to water table: About 0 inches • Frequency of flooding: None • • Frequency of ponding: Frequent • Available water storage in profile: Low (about 4.9 inches) Interpretive groups • Land capability classification (irrigated): None specified • Land capability classification (nonirrigated): 5w • • Hydrologic Soil Group: D • Other vegetative classification: Wet Soils (G002XN102WA) • Hydric soil rating: Yes Minor Components Alderwood • • Percent of map unit: 5 percent • Hydric soil rating: No Norma • Percent of map unit: 3 percent • Landform: Depressions • Hydric soil rating: Yes • Terric medisaprists • Percent of map unit: 3 percent • Landform: Depressions • Hydric soil rating: Yes • • WESTERN ENGINEERS,INC. 21 PROJECT: 17-1666-A