IDENTIFIERS

  • Current Taxon Name (Soil Name): unnamed
  • OSD
  • Series Extent
  • User Site ID: S1972CA013004
  • User Pedon ID: S1972CA013004
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 72C0010
  • NCSS Pedon Lab Data NASIS Record ID - 43944
  • Print Date: 4/27/2024

    • LOCATION

  • Township: 1S
  • Range: 2W
  • Section: 8
  • PLSS Details: SW 1/4, SW 1/4 NE 1/4
  • Map Unit: MeF—Millsholm loam, 15 to 50 percent slopes, moist, MLRA 15
  • State: California
  • County: CA013—Contra Costa
  • Non-MLRA Soil Survey Area: CA013—Contra Costa County, California

    • PEDON

  • Describers Name: LEW & GK
  • Current Taxonomic Class: Fine-loamy, mixed, thermic Lithic Haploxerolls
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - unnamed
  • Classificaton Date - 5/27/2005
  • Sampled As Information:
  • Soil Name - Millsholm
  • Classificaton Date - 4/13/1972
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: interbedded sandstone and shale
  • Landform: upland slope
  • Runoff: medium
  • Drainage Class: well
  • Bedrock: sandstone and shale
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/13/1972 (actual site observation date)
  • Air Photo ID: BUU6V146
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Setting and Climate
    Slope Slope Length USLE Upslope Length Elev. Corr. Elev Aspect MAP REAP FFD MAAT MSAT MWAT MAST MSST MWST MFFP PE Index Climate Station ID Climate Station Name Climate Station Type
    % m degrees mm mm C mm

    5

    —

    —

    265

    —

    225

    508

    —

    —

    14.4

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A11—0 to 13 centimeters (0.0 to 5.1 inches); brown (10YR 5/3), dark brown (10YR 3/3), moist; clay loam; moderate medium subangular blocky structure; hard, friable, slightly sticky, moderately plastic; 21.0 very fine roots; 0.5 very fine tubular pores; fragments; slightly acid, pH 6.5; gradual smooth boundary. Lab sample # 72C00065
    A12—13 to 23 centimeters (5.1 to 9.1 inches);, dark brown (10YR 3/3), moist; clay loam; moderate fine and medium subangular blocky structure; hard, friable, slightly sticky, moderately plastic; 21.0 very fine roots; 0.5 very fine tubular pores; fragments; slightly acid, pH 6.5; gradual wavy boundary. Lab sample # 72C00066
    B2—23 to 44 centimeters (9.1 to 17.3 inches);, yellowish brown (10YR 5/6) and brown (10YR 4/3), moist; clay loam; weak fine and medium subangular blocky structure; hard, friable, moderately sticky, moderately plastic; 21.0 very fine roots; 0.5 very fine tubular pores; fragments; slightly acid, pH 6.5; abrupt wavy boundary. Lab sample # 72C00067
    C1—44 to 69 centimeters (17.3 to 27.2 inches); light yellowish brown (10YR 6/4), light yellowish brown (10YR 6/4) crushed, moist; bedrock; weak fine and medium subangular blocky structure; 0.5 very fine roots; fragments; neutral, pH 7.0; diffuse wavy boundary. Lab sample # 72C00068
    C2—69 to 117 centimeters (27.2 to 46.1 inches);, light yellowish brown (10YR 6/4) crushed, moist; bedrock; weak fine and medium subangular blocky structure; fragments; neutral, pH 7.0. Lab sample # 72C00069