IDENTIFIERS

  • Current Taxon Name (Soil Name): unnamed
  • OSD
  • Series Extent
  • User Site ID: S1972CA013005
  • User Pedon ID: S1972CA013005
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 72C0006
  • NCSS Pedon Lab Data NASIS Record ID - 43940
  • Print Date: 4/28/2024

    • LOCATION

  • Township: 1S
  • Range: 2W
  • Section: 8
  • PLSS Details: SW 1/4 SW 1/4 NE 1/4
  • Map Unit: LhF—Los Osos clay loam, 30 to 50 percent slopes
  • State: California
  • County: CA013—Contra Costa
  • Non-MLRA Soil Survey Area: CA013—Contra Costa County, California

    • PEDON

  • Describers Name: LEW & GMK
  • Current Taxonomic Class: Fine-loamy, mixed, thermic Typic Argixerolls
  • Pedon Record Orgin: NASIS
  • Pedon #: 5
  • Correlated Information:
  • Soil Name - unnamed
  • Classificaton Date - 7/24/2007
  • Sampled As Information:
  • Soil Name - Los Osos
  • 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
  • Slope Shape Down: convex
  • 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

    30

    —

    —

    244

    —

    0

    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 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; gradual wavy boundary. Lab sample # 72C00039
    A12—13 to 33 centimeters (5.1 to 13.0 inches);, dark brown (10YR 3/3), moist; clay loam; moderate fine and medium subangular blocky structure; hard, friable, moderately sticky, moderately plastic; 21.0 very fine roots and 0.5 fine roots; 0.5 very fine tubular pores; fragments; neutral, pH 7.0; gradual wavy boundary. Lab sample # 72C00040
    A13—33 to 51 centimeters (13.0 to 20.1 inches);, 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; neutral, pH 7.0; gradual wavy boundary. Lab sample # 72C00041
    B2—51 to 74 centimeters (20.1 to 29.1 inches);, dark yellowish brown (10YR 3/4) and brownish yellow (10YR 6/6) and brownish yellow (10YR 6/8), moist; clay loam; weak fine and medium subangular blocky structure; hard, friable, moderately sticky, moderately plastic; 3.0 very fine roots; 0.5 very fine tubular pores; 1 percent thin clay films on surfaces along pores and 1 percent thin clay films on all faces of peds; fragments; neutral, pH 7.0; abrupt smooth boundary. Lab sample # 72C00042
    C1—74 to 137 centimeters (29.1 to 53.9 inches); bedrock; 0.5 very fine roots; fragments; gradual wavy boundary. Lab sample # 72C00043
    C2—137 to 165 centimeters (53.9 to 65.0 inches); bedrock; fragments. Lab sample # 72C00044