HsF—Hawthorne-Sulphura

HsF—Hawthorne-Sulphura association, 20 to 60 percent slopes

Map Unit Setting

  • National map unit symbol: 2v5c6

  • Elevation: 360 to 930 feet

  • Mean annual precipitation: 48 to 55 inches

  • Mean annual air temperature: 57 to 61 degrees F

  • Frost-free period: 185 to 205 days

  • Farmland classification: Not prime farmland

Map Unit Composition

  • Hawthorne and similar soils: 53 percent

  • Sulphura and similar soils: 32 percent

  • Estimates are based on observations, descriptions, and transects of the mapunit.

Description of Hawthorne

Setting

  • Landform: Hillslopes

  • Landform position (two-dimensional): Backslope

  • Landform position (three-dimensional): Side slope

  • Down-slope shape: Linear

  • Across-slope shape: Linear

  • Parent material: Gravelly residuum weathered from limestone and siltstone

Typical profile

  • A - 0 to 6 inches: gravelly silt loam

  • Bw - 6 to 33 inches: very gravelly silt loam

  • Cr - 33 to 43 inches: bedrock

Properties and qualities

  • Slope: 20 to 60 percent

  • Depth to restrictive feature: 20 to 39 inches to paralithic bedrock

  • Natural drainage class: Somewhat excessively 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: More than 80 inches

  • Frequency of flooding: None

  • Frequency of ponding: None

  • Salinity, maximum in profile: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm)

  • Available water storage in profile: Low (about 3.1 inches)

Interpretive groups

  • Land capability classification (irrigated): None specified

  • Land capability classification (nonirrigated): 7s

  • Hydrologic Soil Group: B

  • Hydric soil rating: No

Description of Sulphura

Setting

  • Landform: Hillslopes

  • Landform position (two-dimensional): Backslope

  • Landform position (three-dimensional): Side slope

  • Down-slope shape: Linear

  • Across-slope shape: Linear

  • Parent material: Channery residuum weathered from limestone and shale

Typical profile

  • A - 0 to 10 inches: gravelly silt loam

  • Bw - 10 to 22 inches: very channery silt loam

  • R - 22 to 32 inches: bedrock

Properties and qualities

  • Slope: 20 to 60 percent

  • Depth to restrictive feature: 20 to 39 inches to lithic bedrock

  • Natural drainage class: Somewhat excessively drained

  • Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately low (0.00 to 0.06 in/hr)

  • Depth to water table: More than 80 inches

  • Frequency of flooding: None

  • Frequency of ponding: None

  • Salinity, maximum in profile: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm)

  • Available water storage in profile: Very low (about 2.8 inches)

Interpretive groups

  • Land capability classification (irrigated): None specified

  • Land capability classification (nonirrigated): 7s

  • Hydrologic Soil Group: C

  • Hydric soil rating: No

 

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