IDENTIFIERS

  • Current Taxon Name (Soil Name): Grundy
  • OSD
  • Series Extent
  • User Site ID: S1986IA087063
  • User Pedon ID: 86IA0870063
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 87P0341
  • NCSS Pedon Lab Data NASIS Record ID - 59636
  • Print Date: 12/11/2024

    • 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: 40.8263893
  • Std. Longitude: -91.5813904
  • Datum: WGS84
  • Township: 70N
  • Range: 6W
  • Section: 32
  • PLSS Details: 713 feet S and 549 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. A. Lucassen
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 6
  • Sampled As Information:
  • Soil Name - Grundy
  • Taxonomic Class - Fine, montmorillonitic Aquic Argiudolls
  • Classificaton Date - 8/1/1986
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • 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: 8/1/1986 (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
    • 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

    3

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    270

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    1Ap—0 to 20 centimeters (0.0 to 7.9 inches); very dark gray (10YR 3/1) interior silty clay loam; weak fine subangular blocky, and weak fine granular structure; friable; 0.5 fine roots; fragments; slightly acid, pH 6.2, hellige-truog; abrupt smooth boundary. Lab sample # 87P01721. Some streaks and pokcets of (2.5Y 4/2).; few fine roots
    1BA—20 to 30 centimeters (7.9 to 11.8 inches); dark grayish brown (2.5Y 4/2) interior silty clay; 30 percent brown (10YR 4/3) fine prominent and 30 percent dark yellowish brown (10YR 4/4) fine prominent mottles; moderate fine subangular blocky structure; friable; 0.5 fine roots; very dark gray (10YR 3/1), moist, organic stains on faces of peds and 37 percent distinct , moist, clay films; fragments; neutral, pH 7.0, hellige-truog; clear smooth boundary. Lab sample # 87P01722. common clay films surface features; few fine roots; many fine prominent 10YR43 mottles; many fine prominent 10YR44 mottles
    1Bt1—30 to 46 centimeters (11.8 to 18.1 inches); grayish brown (2.5Y 5/2) interior silty clay; 1 percent yellowish brown (10YR 5/4) fine prominent and 1 percent yellowish brown (10YR 5/8) fine prominent and 1 percent strong brown (7.5YR 4/6) fine prominent mottles; moderate fine subangular blocky structure; firm; 0.5 fine roots; 37 percent distinct , moist, clay films; 1 percent fine iron-manganese concretions; fragments; gradual smooth boundary. Lab sample # 87P01723. few fine iron-manganese concretions concentrations; common clay films surface features; few fine roots; few fine prominent 10YR54 mottles; few fine prominent 10YR58 mottles; few fine prominent 7.5YR46 mottles
    1Bt2—46 to 64 centimeters (18.1 to 25.2 inches); grayish brown (2.5Y 5/2) interior silty clay; 11 percent yellowish brown (10YR 5/4) fine prominent and 11 percent yellowish brown (10YR 5/6) fine prominent and 11 percent yellowish brown (10YR 5/8) fine prominent mottles; moderate medium subangular blocky structure; firm; 0.5 fine roots; 15 percent , moist, organic stains in root channels and/or pores and 37 percent distinct , moist, clay films; 1 percent fine iron-manganese concretions; fragments; gradual smooth boundary. Lab sample # 87P01724. few fine iron-manganese concretions concentrations; common clay films surface features; few organic coats surface features in root channels and/or pores; few fine roots; common fine prominent 10YR54 mottles; common fine prominent 10YR56 mottles; common fine prominent 10YR58 mottles
    1Bt3—64 to 79 centimeters (25.2 to 31.1 inches); grayish brown (2.5Y 5/2) interior silty clay; 11 percent yellowish brown (10YR 5/6) fine prominent and 11 percent yellowish brown (10YR 5/8) fine prominent and 11 percent dark brown (7.5YR 3/4) fine prominent mottles; moderate medium subangular blocky structure; firm; 0.5 fine roots; 15 percent , moist, organic stains in root channels and/or pores and 37 percent distinct , moist, clay films; 1 percent fine iron-manganese concretions; fragments; gradual smooth boundary. Lab sample # 87P01725. few fine iron-manganese concretions concentrations; common clay films surface features; few organic coats surface features in root channels and/or pores; few fine roots; common fine prominent 10YR56 mottles; common fine prominent 10YR58 mottles; common fine prominent 7.5YR34 mottles
    1Bt4—79 to 94 centimeters (31.1 to 37.0 inches); grayish brown (10YR 5/2) interior silty clay loam; 11 percent yellowish brown (10YR 5/4) fine distinct and 30 percent strong brown (7.5YR 5/6) medium prominent and 30 percent strong brown (7.5YR 5/8) medium prominent mottles; moderate medium subangular blocky structure; firm; 0.5 fine roots; 37 percent distinct , moist, clay films; 1 percent fine iron-manganese concretions; fragments; gradual smooth boundary. Lab sample # 87P01726. few fine iron-manganese concretions concentrations; common clay films surface features; few fine roots; many medium prominent 7.5YR56 mottles; many medium prominent 7.5YR58 mottles; common fine distinct 10YR54 mottles
    1Bt3—94 to 112 centimeters (37.0 to 44.1 inches); gray (10YR 6/1) interior silty clay loam; 11 percent strong brown (7.5YR 5/8) medium prominent and 11 percent strong brown (7.5YR 5/6) medium prominent mottles; moderate medium subangular blocky structure; firm; 37 percent distinct , moist, clay films; 1 percent fine iron-manganese concretions; fragments; clear smooth boundary. few fine iron-manganese concretions concentrations; common clay films surface features; common medium prominent 7.5YR58 mottles; common medium prominent 7.5YR56 mottles
    2C—112 to 152 centimeters (44.1 to 59.8 inches); dark gray (N 4/0) interior clay; 1 percent brown (7.5YR 4/4) fine prominent mottles; massive; extremely firm*; fragments. few fine prominent 7.5YR44 mottles