IDENTIFIERS

  • Current Taxon Name (Soil Name): LEVASY
  • OSD
  • Series Extent
  • User Site ID: 2006MO183057
  • User Pedon ID: 2006MO183057
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0618357
  • NCSS Pedon Lab Data NASIS Record ID - 26255
  • 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: 38.8386944
  • Std. Longitude: -90.1293333
  • Datum: WGS84
  • Township: T47N
  • Range: R8E
  • Section: 5
  • PLSS Details: 3 feet West and 703 feet North from the South East corner
  • Country: US—United States
  • State: Missouri
  • County: MO183—St. Charles
  • MLRA: 115—Central Mississippi Valley Wooded Slopes
  • Non-MLRA Soil Survey Area: MO183—St. Charles County, Missouri
  • 7.5 Minute USGS Quad: 38090-G2—Columbia Bottom, Missouri

    • PEDON

  • Describers Name: Keith Knelle, John Horton
  • Current Taxonomic Class: Clayey over loamy, smectitic, mesic Cumulic Vertic Epiaquolls
  • Current Taxon Kind: series
  • Pedon Type: map unit inclusion
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Missouri Pedon
  • Pedon #: 57
  • Correlated Information:
  • Soil Name - LEVASY
  • PSC - 25 to 102 cm.
  • Classificaton Date - 2/1/2012
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - aquic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - WALDRON
  • Classificaton Date - 9/6/2006
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: Holocene Stage clayey alluvium derived from mixed over Holocene Stage silty alluvium derived from mixed
  • Landscape: river valley
  • Landform: flood-plain step
  • Geomorphic Component Terraces: tread
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: linear
  • Runoff: very low
  • Drainage Class: somewhat poorly
  • Flooding: occasional flooding for brief periods
  • Ponding: none ponding
  • Geology: Holocene Stage formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/6/2006 (actual site observation date)
  • Air Photo ID: 38090g2ne
  • Surface Water Kind: flooded
  • Surface Water Depth: 15
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - other grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion gully
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    abrupt textural change

    —

    76 -

    - 1 -

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

    mollic epipedon

    cambic horizon

    aquic conditions

    abrupt textural change

    0—76

    15—76

    15—208

    76—

    —76—

    —61—

    —193—

    —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

    0.5

    —

    —

    125

    —

    240

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 15 centimeters (0.0 to 5.9 inches); very dark gray (10YR 3/1) interior silty clay; moderate fine subangular blocky structure; firm; 3.0 very fine roots throughout and 3.0 fine roots throughout; 3.0 fine interstitial pores; fragments; clear smooth boundary. Lab sample # MU008232; observed in push tube
    A—15 to 53 centimeters (5.9 to 20.9 inches); very dark gray (10YR 3/1) interior silty clay; moderate fine subangular blocky, and moderate fine prismatic structure; very firm; 3.0 very fine roots throughout and 3.0 fine roots throughout; 3.0 fine tubular pores; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix; fragments; abrupt smooth boundary.; observed in push tube
    Bg—53 to 76 centimeters (20.9 to 29.9 inches); 80 percent very dark gray (10YR 3/1) interior and 20 percent dark grayish brown (10YR 4/2) interior and very dark grayish brown (10YR 3/2) rubbed silty clay; moderate fine subangular blocky structure; very friable; 3.0 very fine roots throughout and 3.0 fine roots throughout; 3.0 fine tubular pores; 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 4/6), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary.; observed in push tube
    Cg1—76 to 112 centimeters (29.9 to 44.1 inches); 70 percent dark grayish brown (10YR 4/2) interior and 30 percent dark gray (10YR 4/1) interior stratified silt loam; massive; friable; 0.5 very fine roots throughout and 0.5 fine roots throughout; 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 and 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented gray (2.5Y 5/1), moist, iron depletions with clear boundaries in matrix; fragments; slight effervescence, by hcl, 1n; gradual smooth boundary.; observed in push tube
    Cg2—112 to 163 centimeters (44.1 to 64.2 inches); 50 percent dark grayish brown (10YR 4/2) interior and 50 percent dark gray (10YR 4/1) interior stratified silt loam; massive; firm; 0.5 very fine roots throughout; 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 gray (2.5Y 5/1), moist, iron depletions with clear boundaries in matrix; fragments; slight effervescence, by hcl, 1n; clear smooth boundary.; observed in push tube
    Cg3—163 to 208 centimeters (64.2 to 81.9 inches); 60 percent dark grayish brown (2.5Y 4/2) interior and 40 percent dark gray (2.5Y 4/1) interior stratified silt loam; massive; very friable; 0.5 very fine roots throughout; 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 gray (10YR 5/1), moist, iron depletions with clear boundaries in matrix; fragments; slight effervescence, by hcl, 1n.; observed in push tube