IDENTIFIERS

  • Current Taxon Name (Soil Name): Toomes
  • OSD
  • Series Extent
  • User Site ID: S1955-CA-52-109
  • User Pedon ID: 55-CA-52-109
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - UCDAVIS
  • Lab Pedon # - UCD5552109
  • NCSS Pedon Lab Data NASIS Record ID - 41283
  • Print Date: 2/17/2025

    • 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: 40.2783610
  • Std. Longitude: -122.1200680
  • Datum: WGS84
  • Township: 28N
  • Range: 2W
  • Section: 17
  • PLSS Details: 2000 ft north and 1000 ft east of SW corner of section
  • Location Description: west of Tuscan Buttes along California State Highway 36.
  • Map Unit: TgD—Toomes very rocky loam, 10 to 30 percent slopes
  • Country: US—United States
  • State: California
  • County: CA103—Tehama
  • MLRA: 18—Sierra Nevada Foothills
  • Regional Office: SW—Southwest
  • MLRA Soil Survey Area: SW-CHI—Chico, California
  • Non-MLRA Soil Survey Area: CA645—Tehama County, California
  • 7.5 Minute USGS Quad: 40122-C1—Dales, California

    • PEDON

  • Describers Name: KDG, OCO
  • Current Taxonomic Class: Loamy, mixed, superactive, thermic Lithic Haploxerepts
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Toomes (flagged as OSD)
  • PSC - 0 to 30 cm.
  • Classificaton Date - 11/9/2018
  • Classifier - Andrew Paolucci
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - xeric
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - TOOMES
  • Taxonomic Class - Loamy, mixed, thermic Lithic Ruptic-Xerorthentic Xerochrepts
  • Classificaton Date - 2/23/2009
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: residuum weathered from tuff breccia
  • Landscape: foothills
  • Landform: hill
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Bedrock: tuff breccia at 30cm
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 2/23/2009 (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
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, lithic

    —

    30 - 200

    - 170 -

    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    cambic horizon

    lithic contact

    0—18

    18—30

    30—200

    —18—

    —12—

    —170—
    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

    —

    —

    274

    —

    270

    584

    —

    —

    16.7

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A1—0 to 5 centimeters (0.0 to 2.0 inches); brown (7.5YR 5/4), dark reddish brown (5YR 3/4), moist; gravelly loam; weak fine platy structure; slightly hard, friable; 21.0 fine roots throughout; 21.0 fine irregular pores; 15 percent by volume indurated 2-35-75 millimeter unspecified fragments; moderately acid, pH 5.9; abrupt smooth boundary. Lab sample # UCD03495
    A2—5 to 18 centimeters (2.0 to 7.1 inches); brown (7.5YR 4/4), dark reddish brown (5YR 3/4), moist; loam; moderate medium subangular blocky structure; slightly hard, friable; 3.0 fine roots throughout; 3.0 fine irregular pores; fragments; moderately acid, pH 6.0; clear irregular boundary. Lab sample # UCD03496
    Bw—18 to 30 centimeters (7.1 to 11.8 inches); reddish brown (5YR 4/4), dark reddish brown (5YR 3/4), moist; loam; moderate medium subangular blocky structure; slightly hard, friable; 3.0 fine roots throughout; 3.0 fine irregular pores; fragments; moderately acid, pH 6.0; abrupt irregular boundary. Lab sample # UCD03497
    R—30 to 30 centimeters (11.8 to 11.8 inches); fragments. Lab sample # UCD03498