IDENTIFIERS

  • Current Taxon Name (Soil Name): Grundy
  • OSD
  • Series Extent
  • User Site ID: S1984IA135022
  • User Pedon ID: 84IA1350022
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 85P0312
  • NCSS Pedon Lab Data NASIS Record ID - 56028
  • Print Date: 3/2/2025

    • 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: 41.0166664
  • Std. Longitude: -92.7833328
  • Datum: WGS84
  • Township: 72N
  • Range: 17W
  • Section: 23
  • PLSS Details: 805 feet north and 1520 feet west of the center
  • State: Iowa
  • County: IA135—Monroe
  • MLRA: 109—Iowa and Missouri Heavy Till Plain
  • Regional Office: NC—North Central
  • MLRA Soil Survey Area: NC-GAL—Gallatin, Missouri
  • Non-MLRA Soil Survey Area: IA135—Monroe County, Iowa

    • PEDON

  • Describers Name: J. Lucassen
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 2
  • Sampled As Information:
  • Soil Name - Grundy
  • Taxonomic Class - Fine, montmorillonitic Aquic Argiudolls
  • PSC - 38 to 89 cm.
  • Classificaton Date - 11/1/1984
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Erosion Class - 2
  • 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—23

    38—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

    4

    —

    —

    —

    —

    45

    —

    —

    —

    —

    —

    —

    —

    —

    —

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    1Ap—0 to 23 centimeters (0.0 to 9.1 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 6.4, hellige-truog; abrupt smooth boundary. Lab sample # 85P01500; moist when described;. A few streaks of 10YR 4/2.; few fine roots
    1BA—23 to 38 centimeters (9.1 to 15.0 inches); dark grayish brown (10YR 4/2) interior silty clay loam; 1 percent yellowish brown (10YR 5/6) fine distinct mottles; moderate fine and medium subangular blocky structure; friable; 0.5 fine roots; 37 percent , moist, clay films on faces of peds and 55 percent very dark gray (10YR 3/1), moist, organic stains on faces of peds; fragments; moderately acid, pH 5.8, hellige-truog; clear smooth boundary. Lab sample # 85P01501; moist when described;. many organic coats surface features on faces of peds; common clay films surface features on faces of peds; few fine roots; few fine distinct 10YR56 mottles; continuous - phpvsfiid 230647; continuous - phpvsfiid 230647
    1Bt1—38 to 51 centimeters (15.0 to 20.1 inches); dark grayish brown (10YR 4/2) interior silty clay; 11 percent yellowish brown (10YR 5/6) fine distinct and 11 percent yellowish brown (10YR 5/8) fine distinct mottles; moderate medium subangular blocky structure; firm; 0.5 fine roots; 55 percent , moist, clay films on faces of peds; fragments; moderately acid, pH 5.6, hellige-truog; gradual smooth boundary. Lab sample # 85P01502; moist when described;. many clay films surface features on faces of peds; few fine roots; common fine distinct 10YR56 mottles; common fine distinct 10YR58 mottles; continuous - phpvsfiid 230648; continuous - phpvsfiid 230648
    1Bt2—51 to 66 centimeters (20.1 to 26.0 inches); dark grayish brown (10YR 4/2) interior silty clay; 11 percent yellowish brown (10YR 5/6) fine and medium distinct and 11 percent yellowish brown (10YR 5/8) fine and medium distinct mottles; moderate medium subangular blocky structure; firm; 0.5 fine roots; 55 percent , moist, clay films on faces of peds; fragments; strongly acid, pH 5.4, hellige-truog; gradual smooth boundary. Lab sample # 85P01503; moist when described;. many clay films surface features on faces of peds; few fine roots; common fine and medium distinct 10YR56 mottles; common fine and medium distinct 10YR58 mottles; continuous - phpvsfiid 230649; continuous - phpvsfiid 230649
    1Bt3—66 to 84 centimeters (26.0 to 33.1 inches); dark grayish brown (2.5Y 4/2) 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; 0.5 fine roots; 55 percent , moist, clay films on faces of peds; fragments; moderately acid, pH 5.8, hellige-truog; gradual smooth boundary. Lab sample # 85P01504; moist when described;. 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; continuous - phpvsfiid 230650; continuous - phpvsfiid 230650
    1Bt4—84 to 99 centimeters (33.1 to 39.0 inches); olive gray (5Y 5/2) interior silty clay loam; 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; 0.5 fine roots; 37 percent , moist, clay films on faces of peds; 11 percent fine and medium iron-manganese masses; fragments; slightly acid, pH 6.4, hellige-truog; gradual smooth boundary.; moist when described;. Not sampled.; common fine and medium soft masses of iron-manganese concentrations; common clay films surface features on faces of peds; few fine roots; common medium prominent 10YR58 mottles; common medium prominent 7.5YR58 mottles; continuous - phpvsfiid 230651; continuous - phpvsfiid 230651
    1Bt5—99 to 122 centimeters (39.0 to 48.0 inches); olive gray (5Y 5/2) interior silty clay loam; 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; 0.5 fine roots; 37 percent , moist, clay films on faces of peds; 11 percent fine and medium iron-manganese masses; fragments; neutral, pH 6.6, hellige-truog; gradual smooth boundary.; moist when described;. Not sampled.; common fine and medium soft masses of iron-manganese concentrations; common 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; continuous - phpvsfiid 230652; continuous - phpvsfiid 230652
    1Bt6—122 to 152 centimeters (48.0 to 59.8 inches); olive gray (5Y 5/2) interior and yellowish brown (10YR 5/8) silty clay loam; weak medium subangular blocky structure; firm; 11 percent fine and medium iron-manganese masses; fragments; neutral, pH 6.6, hellige-truog.; moist when described;. Not sampled.; common fine and medium soft masses of iron-manganese concentrations