IDENTIFIERS

  • Current Taxon Name (Soil Name): Cohasset
  • OSD
  • Series Extent
  • User Site ID: S1982CA061314
  • User Pedon ID: 82CA061314
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 83P0260
  • NCSS Pedon Lab Data NASIS Record ID - 52502
  • Print Date: 4/3/2025

    • 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: 39.1040573
  • Std. Longitude: -120.7388000
  • Datum: WGS84
  • Township: 15N
  • Range: 11E
  • Section: 33
  • PLSS Details: Center of NE1/4
  • State: California
  • County: CA061—Placer
  • MLRA: 22A—Sierra Nevada and Tehachapi Mountains

    • PEDON

  • Current Taxonomic Class: Fine, mixed, mesic Xeric Haplohumults
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 314
  • Correlated Information:
  • Soil Name - Cohasset
  • Classificaton Date - 7/11/2007
  • Moisture Class - xeric
  • Sampled As Information:
  • Soil Name - Cohasset
  • Taxonomic Class - Fine-loamy, mixed, mesic Ultic Haploxeralf
  • Taxon Kind - series
  • Classificaton Date - 5/1/1982
  • Soil Taxonomic Edition - eighth edition
  • Moisture Class - xeric
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/1/1982 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—61

    61—267

    —-

    —-
    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

    —

    —

    1312

    —

    270

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    O—0 to 7 centimeters (0.0 to 2.8 inches); undecomposed organic matter; fragments. Weakly matted pine needles.
    O—7 to 14 centimeters (2.8 to 5.5 inches);, brown (7.5YR 4/4) interior, moist; loam; weak medium and coarse platy structure; firm, slightly sticky, slightly plastic; 0.1 very fine roots and 0.5 fine roots; fragments; moderately acid, pH 5.8, hellige-truog; abrupt wavy boundary. Lab sample # 83P01186. very few very fine roots; few fine roots
    A1—14 to 20 centimeters (5.5 to 7.9 inches);, dark reddish brown (5YR 3/3) interior, moist; loam; weak medium subangular blocky structure; friable, slightly sticky, slightly plastic; 2.5 very fine roots and 0.5 fine roots; fragments; slightly acid, pH 6.4, hellige-truog; clear smooth boundary. Lab sample # 83P01187. common very fine roots; few fine roots
    A2—20 to 38 centimeters (7.9 to 15.0 inches);, dark reddish brown (5YR 3/3) interior, moist; loam; weak very fine and fine subangular blocky, and weak medium subangular blocky structure; friable, slightly sticky, slightly plastic; 2.5 very fine roots and 0.5 fine and medium roots; fragments; neutral, pH 7.0, hellige-truog; gradual smooth boundary. Lab sample # 83P01188. common very fine roots; few fine and medium roots
    Bt1—38 to 86 centimeters (15.0 to 33.9 inches);, yellowish red (5YR 4/6) interior, moist; clay loam; 32 percent clay; moderate coarse subangular blocky, and weak fine subangular blocky structure; friable, moderately sticky, slightly plastic; 0.5 fine and medium roots and 0.5 coarse roots; 15 percent , moist, clay films on faces of peds; fragments; neutral, pH 6.6, hellige-truog; diffuse boundary. Lab sample # 83P01189. few clay films surface features on faces of peds; few fine and medium roots; few coarse roots
    Bt2—86 to 119 centimeters (33.9 to 46.9 inches);, 5YR 4/8 (5YR 4/8) interior, moist; clay loam; 32 percent clay; moderate fine and medium subangular blocky structure; firm, moderately sticky, moderately plastic; 0.5 fine roots; 15 percent , moist, clay films on faces of peds and 37 percent , moist, clay films on faces of peds; fragments; neutral, pH 6.8, hellige-truog; diffuse boundary. Lab sample # 83P01190. few clay films surface features on faces of peds; common clay films surface features on faces of peds; few fine roots
    C—119 to 169 centimeters (46.9 to 66.5 inches);, strong brown (7.5YR 4/6) interior, moist; silty clay loam; weak very fine and fine subangular blocky structure; friable, slightly sticky, slightly plastic; 0.1 fine roots; 15 percent , moist, clay films on faces of peds; fragments; neutral, pH 6.6, hellige-truog; abrupt irregular boundary. Lab sample # 83P01191. few clay films surface features on faces of peds; very few fine roots
    R—169 to 174 centimeters (66.5 to 68.5 inches); weathered bedrock; fragments. Andesitic lahar; soft weathered in upper 5 cm.