IDENTIFIERS

  • Current Taxon Name (Soil Name): ATWELL
  • OSD
  • Series Extent
  • User Site ID: S1962-CA-12-028x
  • User Pedon ID: 62-CA-12-028x
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - UCDAVIS
  • Lab Pedon # - UCD6212028
  • NCSS Pedon Lab Data NASIS Record ID - 42005
  • Print Date: 2/16/2025

    • LOCATION

  • Location In Web Soil Survey
  • AOI is roughly a square mile and pedon is marked in the center.
  • Location in SoilWeb
  • Location in Google Maps
  • Std. Latitude: 40.7623596
  • Std. Longitude: -124.0209808
  • Datum: WGS84
  • Township: 4N
  • Range: 1E
  • Section: 1
  • PLSS Details: NW/4
  • State: California
  • County: CA023—Humboldt
  • MLRA: 4B—Coastal Redwood Belt
  • Non-MLRA Soil Survey Area: CA605—Humboldt and Del Norte Area, California
  • 7.5 Minute USGS Quad: 40124-G1—Arcata South, California

    • PEDON

  • Describers Name: JAD, JEM, RCH
  • Current Taxonomic Class: Fine, vermiculitic, isomesic Aquic Tropudalfs
  • Pedon Record Orgin: NASIS
  • Sampled As Information:
  • Soil Name - ATWELL
  • Taxonomic Class - Fine, vermiculitic, isomesic Aquic Tropudalfs
  • Classificaton Date - 1/28/2009
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: RES
  • Drainage Class: somewhat poorly
  • Bedrock: sandstone, unspecified
  • Geology: Sandstone Over Blue Clay formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 1/28/2009 (entry creation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - rangeland, grassland
  • 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

    40

    —

    —

    305

    —

    338

    1524

    —

    —

    11.1

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    —

    —

    —

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    O1—0 to 5 centimeters (0.0 to 2.0 inches); fragments. Lab sample # UCD04141
    O2—5 to 8 centimeters (2.0 to 3.1 inches); fragments. Lab sample # UCD04142
    A11—8 to 21 centimeters (3.1 to 8.3 inches); brown (10YR 4/3), pale brown (10YR 6/3), dry; gravelly loam; medium subangular blocky structure; friable; 15 percent by volume indurated 2-35-75 millimeter unspecified fragments; strongly acid, pH 5.5; clear smooth boundary. Lab sample # UCD04143
    A12—21 to 44 centimeters (8.3 to 17.3 inches); dark yellowish brown (10YR 4/4), very pale brown (10YR 7/3), dry; loam; medium subangular blocky structure; friable; fragments; very strongly acid, pH 5.0; gradual smooth boundary. Lab sample # UCD04144
    A3—44 to 61 centimeters (17.3 to 24.0 inches); yellowish brown (10YR 5/4), light gray (10YR 7/2), dry; loam; medium subangular blocky structure; friable; fragments; very strongly acid, pH 4.9; gradual smooth boundary. Lab sample # UCD04145
    B1—61 to 79 centimeters (24.0 to 31.1 inches); brown (7.5YR 4/4), strong brown (7.5YR 5/6), dry; gravelly clay loam; 3 percent strong brown (7.5YR 5/6) fine prominent mottles; medium subangular blocky structure; friable; 15 percent by volume indurated 2-35-75 millimeter unspecified fragments; very strongly acid, pH 4.9; abrupt smooth boundary. Lab sample # UCD04146
    B21t—79 to 105 centimeters (31.1 to 41.3 inches); yellowish red (5YR 4/6), yellowish red (5YR 5/6), dry; gravelly clay; medium subangular blocky structure; very friable; 15 percent by volume indurated 2-35-75 millimeter unspecified fragments; moderately acid, pH 5.6; diffuse irregular boundary. Lab sample # UCD04147
    B22t—105 to 110 centimeters (41.3 to 43.3 inches); yellowish red (5YR 4/6), yellowish red (5YR 5/6), dry; gravelly clay; 3 percent very dark gray (N 3/0) and 3 percent gray (N 5/0) mottles; medium subangular blocky structure; very friable; 15 percent by volume indurated 2-35-75 millimeter unspecified fragments; moderately alkaline, pH 7.9. Lab sample # UCD04148