IDENTIFIERS

  • Current Taxon Name (Soil Name): Grundy
  • OSD
  • Series Extent
  • User Site ID: S1984IA087021
  • User Pedon ID: 84IA0870021
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 85P0412
  • NCSS Pedon Lab Data NASIS Record ID - 56128
  • Print Date: 4/27/2025

    • 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: 40.8663902
  • Std. Longitude: -91.6380539
  • Datum: WGS84
  • Township: 70N
  • Range: 7W
  • Section: 14
  • PLSS Details: 1950 feet S and 943 feet E of the NW corner
  • State: Iowa
  • County: IA087—Henry
  • MLRA: 109—Iowa and Missouri Heavy Till Plain
  • Regional Office: NC—North Central
  • MLRA Soil Survey Area: NC-WAV—Waverly, Iowa
  • Non-MLRA Soil Survey Area: IA087—Henry County, Iowa

    • PEDON

  • Describers Name: J. Lucassen
  • Current Taxonomic Class: Fine, smectitic, mesic Aquic Argiudolls
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - Grundy
  • PSC - 43 to 93 cm.
  • Classificaton Date - 7/11/2007
  • Moisture Class - udic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Grundy
  • Taxonomic Class - Fine, montmorillonitic, mesic Typic Argiaquoll
  • Taxon Kind - series
  • Classificaton Date - 11/1/1984
  • Moisture Class - aquic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess derived from mixed-calcareous
  • Landscape: upland
  • Landform: upland slope
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/1/1984 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • 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

    mollic epipedon

    argillic horizon

    0—43

    61—152

    —-

    —-
    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

    —

    —

    —

    —

    135

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    1Ap—0 to 20 centimeters (0.0 to 7.9 inches); black (10YR 2/1) interior silt loam; weak fine subangular blocky, and weak fine granular structure; friable; 0.5 fine roots; fragments; neutral, pH 7.0, hellige-truog; abrupt smooth boundary. Lab sample # 85P02015; moist when described;. few fine roots
    1A—20 to 43 centimeters (7.9 to 16.9 inches); very dark gray (10YR 3/1) interior silty clay loam; weak fine and medium subangular blocky structure; friable; 0.5 fine roots; fragments; moderately acid, pH 6.0, hellige-truog; clear smooth boundary. Lab sample # 85P02016; moist when described;. few fine roots
    1BA—43 to 61 centimeters (16.9 to 24.0 inches); dark gray (10YR 4/1) interior silty clay; 11 percent yellowish brown (10YR 5/4) medium distinct and 11 percent yellowish brown (10YR 5/6) medium distinct mottles; moderate medium subangular blocky structure; firm; 0.5 fine roots; 55 percent very dark gray (10YR 3/1), moist, organic stains on faces of peds and 55 percent , moist, clay films on faces of peds; fragments; moderately acid, pH 5.8, hellige-truog; clear smooth boundary. Lab sample # 85P02017; moist when described;. many organic coats surface features on faces of peds; many clay films surface features on faces of peds; few fine roots; common medium distinct 10YR54 mottles; common medium distinct 10YR56 mottles
    1Bt1—61 to 74 centimeters (24.0 to 29.1 inches); gray (10YR 5/1) interior silty clay; 11 percent dark yellowish brown (10YR 4/6) medium prominent and 11 percent yellowish brown (10YR 5/6) medium prominent and 11 percent yellowish brown (10YR 5/8) medium prominent mottles; moderate medium subangular blocky structure; very firm; 0.5 fine roots; 15 percent very dark gray (10YR 3/1), moist, organic stains in root channels and/or pores and 15 percent very dark gray (10YR 3/1), moist, organic stains on faces of peds and 55 percent , moist, clay films on faces of peds; 1 percent fine iron-manganese concretions; fragments; moderately acid, pH 6.0, hellige-truog; gradual smooth boundary. Lab sample # 85P02018; moist when described;. few fine iron-manganese concretions concentrations; many clay films surface features on faces of peds; few organic coats surface features in root channels and/or pores; few organic coats surface features on faces of peds; few fine roots; common medium prominent 10YR46 mottles; common medium prominent 10YR56 mottles; common medium prominent 10YR58 mottles
    1Bt2—74 to 89 centimeters (29.1 to 35.0 inches); gray (10YR 5/1) interior silty clay; 11 percent yellowish brown (10YR 5/6) medium prominent and 11 percent yellowish brown (10YR 5/8) medium prominent and 11 percent strong brown (7.5YR 5/8) medium prominent mottles; moderate medium subangular blocky structure; very firm; 0.5 fine roots; 15 percent very dark gray (10YR 3/1), moist, organic stains in root channels and/or pores and 15 percent very dark gray (10YR 3/1), moist, organic stains on faces of peds and 55 percent , moist, clay films on faces of peds; 1 percent fine iron-manganese concretions; fragments; slightly acid, pH 6.2, hellige-truog; gradual smooth boundary. Lab sample # 85P02019; moist when described;. few fine iron-manganese concretions concentrations; many clay films surface features on faces of peds; few organic coats surface features in root channels and/or pores; few organic coats surface features on faces of peds; few fine roots; common medium prominent 10YR56 mottles; common medium prominent 10YR58 mottles; common medium prominent 7.5YR58 mottles
    1Bt3—89 to 107 centimeters (35.0 to 42.1 inches); gray (10YR 5/1) interior silty clay; 11 percent yellowish brown (10YR 5/6) medium prominent and 11 percent yellowish brown (10YR 5/8) medium prominent and 11 percent strong brown (7.5YR 5/8) medium prominent mottles; moderate medium subangular blocky structure; very firm; 0.5 fine roots; 55 percent , moist, clay films on faces of peds; 1 percent fine iron-manganese concretions; fragments; slightly acid, pH 6.4, hellige-truog; gradual smooth boundary. Lab sample # 85P02020; moist when described;. few fine iron-manganese concretions concentrations; many clay films surface features on faces of peds; few fine roots; common medium prominent 10YR56 mottles; common medium prominent 10YR58 mottles; common medium prominent 7.5YR58 mottles
    1Bt4—107 to 117 centimeters (42.1 to 46.1 inches); light brownish gray (10YR 6/2) interior silty clay; 11 percent yellowish brown (10YR 5/6) medium prominent and 11 percent yellowish brown (10YR 5/8) medium prominent and 11 percent strong brown (7.5YR 5/8) medium prominent mottles; moderate medium subangular blocky structure; firm; 55 percent , moist, clay films on faces of peds; 1 percent fine iron-manganese concretions; fragments; slightly acid, pH 6.4, hellige-truog; gradual smooth boundary.; moist when described;. Not sampled.; few fine iron-manganese concretions concentrations; many clay films surface features on faces of peds; common medium prominent 10YR56 mottles; common medium prominent 10YR58 mottles; common medium prominent 7.5YR58 mottles
    1Bt5—117 to 152 centimeters (46.1 to 59.8 inches); light brownish gray (10YR 6/2) interior silty clay loam; 30 percent yellowish brown (10YR 5/6) medium and coarse distinct and 30 percent yellowish brown (10YR 5/8) medium and coarse distinct and 30 percent red (2.5YR 5/8) medium and coarse prominent mottles; weak medium subangular blocky structure; friable; 55 percent , moist, clay films on faces of peds; 1 percent fine iron-manganese concretions; fragments; slightly acid, pH 6.4, hellige-truog.; moist when described;. Not sampled.; few fine iron-manganese concretions concentrations; many clay films surface features on faces of peds; many medium and coarse distinct 10YR56 mottles; many medium and coarse distinct 10YR58 mottles; many medium and coarse prominent 2.5YR58 mottles