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BaS—Massadona silty clay loam, saline surface, 0 to 2 percent slopes <br /> Map Unit Setting <br /> National map unit symbol: k06p <br /> Elevation:4,490 to 4,920 feet <br /> Mean annual precipitation:6 to 9 inches <br /> Mean annual air temperature:50 to 55 degrees F <br /> Frost-free period: 140 to 180 days <br /> Farmland classification: Not prime farmland <br /> Map Unit Composition <br /> Massadona, saline surface, and similar soils: 70 percent <br /> Estimates are based on observations, descriptions, and transects of the mapunit. <br /> Description of Massadona, Saline Surface <br /> Setting <br /> Landform: Fan remnants <br /> Down-slope shape: Linear <br /> Across-slope shape: Linear <br /> Parent material: Cretaceous source alluvium derived from clayey shale <br /> Typical profile <br /> Apz-0 to 2 inches: silty clay loam <br /> Bwz-2 to 12 inches: silty clay <br /> Bkyz- 12 to 24 inches:silty clay <br /> BCkyz1 -24 to 48 inches:fine sandy loam <br /> BCkyz2-48 to 60 inches:silty clay loam <br /> Properties and qualities <br /> Slope: 0 to 2 percent <br /> Depth to restrictive feature: More than 80 inches <br /> Natural drainage class.Well drained <br /> Runoff class: Low <br /> Capacity of the most limiting layer to transmit water(Ksat): Moderately low to moderately high (0.07 to <br /> 0.21 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 in profile: 15 percent <br /> Gypsum, maximum in profile:2 percent <br /> Salinity, maximum in profile: Strongly saline (16.0 to 40.0 mmhos/cm) <br /> Available water storage in profile: Low(about 4.7 inches) <br /> Interpretive groups <br /> Land capability classification (irrigated). 7s <br /> Land capability classification (nonirrigated):7c <br /> Hydrologic Soil Group:C <br /> Ecological site. Desert Clay (Castlevalley saltbush) (R034BY103UT) <br /> Hydric soil rating:No <br /> 23 114 West 1-2 <br /> July 2020 <br />