IDENTIFIERS

  • Current Taxon Name (Soil Name): TRELOAR
  • OSD
  • Series Extent
  • User Site ID: 2007MO189006
  • User Pedon ID: 2007MO189006
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0718906
  • NCSS Pedon Lab Data NASIS Record ID - 26176
  • Print Date: 11/21/2024

    • 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: 38.8189722
  • Std. Longitude: -90.1580556
  • Datum: WGS84
  • PLSS Details: 7,327 feet East and 1,454 feet North from the South West corner of Survey 1958,
  • Country: US—United States
  • State: Missouri
  • County: MO189—St. Louis
  • MLRA: 115—Central Mississippi Valley Wooded Slopes
  • Non-MLRA Soil Survey Area: MO189—St. Louis County and St. Louis City, Missouri
  • 7.5 Minute USGS Quad: 38090-G2—Columbia Bottom, Missouri

    • PEDON

  • Describers Name: Grant Butler, John Horton, Dennis Meinert
  • Current Taxonomic Class: Sandy over loamy, mixed, superactive, calcareous, mesic Oxyaquic Eutrudepts
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Missouri Pedon
  • Pedon #: 6
  • Correlated Information:
  • Soil Name - TRELOAR
  • PSC - 25 to 102 cm.
  • Classificaton Date - 2/1/2012
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - udic
  • Moisture Subclass - oxyaquic
  • Sampled As Information:
  • Soil Name - Treloar
  • Classificaton Date - 4/9/2007
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: sandy alluvium derived from mixed over loamy alluvium derived from mixed
  • Landscape: river valley
  • Landform: flood-plain step
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Runoff: low
  • Drainage Class: moderately well
  • Flooding: occasional flooding for long periods
  • Ponding: none ponding
  • Geology: Holocene Stage formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 4/9/2007 (actual site observation date)
  • Air Photo ID: 38090g2ne
  • Surface Water Kind: flooded
  • Surface Water Depth: 15
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - row crop
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion gully
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    cambic horizon

    strongly contrasting particle size class

    aquic conditions

    0—23

    41—208

    41—

    71—

    —23—

    —167—

    —1—

    —1—
    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

    1

    —

    —

    128

    —

    0

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 23 centimeters (0.0 to 9.1 inches); 60 percent brown (10YR 4/3) broken face and 40 percent very dark grayish brown (10YR 3/2) broken face loamy fine sand; weak very fine subangular blocky structure; very friable; 3.0 very fine roots throughout and 3.0 fine roots throughout; 3.0 very fine interstitial and 3.0 very fine tubular pores; 1 percent medium faint irregular noncoherent cemented dark yellowish brown (10YR 4/6), moist, iron depletions with clear boundaries in matrix; fragments; very slight effervescence, by hcl, 1n; abrupt smooth boundary. Lab sample # MU007691; observed in push tube
    C—23 to 41 centimeters (9.1 to 16.1 inches); brown (10YR 4/3) interior fine sand; single grain; loose; 10.0 very fine interstitial pores; fragments; very slight effervescence, by hcl, 1n; abrupt smooth boundary. Lab sample # MU007692; observed in push tube
    2Ab—41 to 71 centimeters (16.1 to 28.0 inches); dark grayish brown (10YR 4/2) broken face silt loam; moderate very fine and fine subangular blocky structure; friable; 3.0 very fine tubular and 0.5 fine tubular pores; 1 percent medium faint irregular noncoherent cemented dark yellowish brown (10YR 4/6), moist, iron depletions with clear boundaries in matrix; fragments; very slight effervescence, by hcl, 1n; abrupt smooth boundary.; observed in push tube
    2Bwb—71 to 114 centimeters (28.0 to 44.9 inches); 50 percent dark grayish brown (10YR 4/2) broken face and 50 percent brown (10YR 4/3) broken face silt loam; weak medium subangular blocky structure; friable; 3.0 very fine tubular and 0.5 fine tubular pores; 1 percent medium faint irregular noncoherent cemented brown (7.5YR 4/4), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented dark gray (10YR 4/1), moist, iron depletions with clear boundaries in matrix; fragments; very slight effervescence, by hcl, 1n; gradual smooth boundary. Lab sample # MU007694; observed in push tube
    2Bkgb—114 to 130 centimeters (44.9 to 51.2 inches); grayish brown (2.5Y 5/2) broken face silty clay; moderate very fine and fine angular blocky structure; firm; 0.5 fine tubular pores; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix; 4 percent light gray (10YR 7/2), moist, carbonate masses throughout; fragments; strong effervescence, by hcl, 1n; clear smooth boundary.; observed in push tube
    2Bgb1—130 to 155 centimeters (51.2 to 61.0 inches); dark gray (2.5Y 4/1) broken face silty clay; moderate very fine and fine subangular blocky structure; firm; 0.5 fine tubular pores; 2 percent black (10YR 2/1), moist, organic stains on all faces of peds; 1 percent medium faint irregular noncoherent cemented brown (7.5YR 5/4), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented dark gray (10YR 4/1), moist, iron depletions with clear boundaries in matrix; fragments; slight effervescence, by hcl, 1n; gradual smooth boundary. Lab sample # MU007696; observed in push tube
    2Bgb2—155 to 178 centimeters (61.0 to 70.1 inches); dark grayish brown (2.5Y 4/2) broken face silt loam; moderate very fine and fine subangular blocky structure; firm; 3.0 very fine tubular and 3.0 fine tubular pores; 1 percent medium faint irregular noncoherent cemented brown (7.5YR 4/4), moist, iron depletions with clear boundaries in matrix; fragments; slight effervescence, by hcl, 1n; gradual smooth boundary. Lab sample # MU007697; observed in push tube
    2Bgb3—178 to 208 centimeters (70.1 to 81.9 inches); dark grayish brown (10YR 4/2) broken face silty clay; moderate fine subangular blocky structure; firm; 3.0 very fine tubular and 0.5 fine tubular pores; 2 percent black (10YR 2/1), moist, organic stains on all faces of peds; 1 percent medium faint irregular noncoherent cemented brown (7.5YR 4/4), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/4), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented dark gray (2.5Y 4/1), moist, iron depletions with clear boundaries in matrix; fragments; very slight effervescence, by hcl, 1n. Lab sample # MU007698; observed in push tube