IDENTIFIERS

  • Current Taxon Name (Soil Name): Grundy
  • OSD
  • Series Extent
  • User Site ID: S1984IA1590031
  • User Pedon ID: 84IA1590031
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 85P0520
  • NCSS Pedon Lab Data NASIS Record ID - 56786
  • 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: 40.8250008
  • Std. Longitude: -94.0638885
  • Datum: WGS84
  • Township: 70N
  • Range: 28W
  • Section: 35
  • PLSS Details: 1360 feet E and 1445 feet S of NW corner
  • Location Description: ISU Shelby-Grundy farm.
  • State: Iowa
  • County: IA159—Ringgold

    • PEDON

  • Describers Name: MW & LB
  • 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 #: 3
  • Correlated Information:
  • Soil Name - Grundy
  • PSC - 33 to 83 cm.
  • Classificaton Date - 7/11/2007
  • Moisture Class - udic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Grundy
  • Taxonomic Class - Fine, montmorillonitic, mesic Aquic Argiudoll
  • Taxon Kind - series
  • Classificaton Date - 11/1/1984
  • Moisture Class - udic
  • Moisture SUBClass - aquic
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: upland
  • Landform: upland slope
  • Hill Slope Profile: summit
  • Slope Shape Down: convex
  • 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—33

    33—124

    —-

    —-
    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

    —

    —

    —

    —

    135

    —

    —

    —

    —

    —

    —

    —

    —

    —

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    1Ap—0 to 10 centimeters (0.0 to 3.9 inches); black (10YR 2/1) interior silty clay loam; weak fine subangular blocky structure; friable; 0.5 fine roots; fragments; neutral, pH 7.2, hellige-truog; clear smooth boundary. Lab sample # 85P02595. few fine roots
    1Ap—10 to 20 centimeters (3.9 to 7.9 inches); black (10YR 2/1) interior silty clay loam; weak fine subangular blocky structure; friable; 0.5 fine roots; fragments; neutral, pH 7.2, hellige-truog; clear smooth boundary. Lab sample # 85P02596. few fine roots
    1A—20 to 33 centimeters (7.9 to 13.0 inches); very dark gray (10YR 3/1) interior and very dark grayish brown (10YR 3/2) and very dark gray (10YR 3/1) crushed silty clay loam; weak medium subangular blocky, and weak fine subangular blocky structure; friable; 0.5 fine roots; black (10YR 2/1), moist, organic stains on faces of peds; fragments; neutral, pH 6.8, hellige-truog; clear smooth boundary. Lab sample # 85P02597. few fine roots
    1Bt1—33 to 48 centimeters (13.0 to 18.9 inches); dark grayish brown (10YR 4/2) interior silty clay loam; 11 percent brown (10YR 4/3) fine faint mottles; weak medium subangular blocky, and moderate very fine and fine subangular blocky structure; friable; 0.5 fine roots; dark gray (10YR 4/1), moist, clay films on faces of peds and very dark gray (10YR 3/1), moist, organic stains on faces of peds; fragments; neutral, pH 6.8, hellige-truog; clear smooth boundary. Lab sample # 85P02598. few fine roots; common fine faint 10YR43 mottles; discontinuous - phpvsfiid 218854; continuous - phpvsfiid 218853; discontinuous - phpvsfiid 218854; continuous - phpvsfiid 218853
    1Bt2—48 to 58 centimeters (18.9 to 22.8 inches); grayish brown (2.5Y 5/2) interior silty clay; 11 percent yellowish brown (10YR 5/8) medium distinct mottles; weak medium subangular blocky, and moderate fine subangular blocky structure; firm; 0.5 very fine roots; dark gray (10YR 4/1), moist, clay films on faces of peds; fragments; neutral, pH 6.8, hellige-truog. Lab sample # 85P02599. few very fine roots; common medium distinct 10YR58 mottles; continuous - phpvsfiid 218855; continuous - phpvsfiid 218855
    1Bt2—58 to 69 centimeters (22.8 to 27.2 inches); grayish brown (2.5Y 5/2) interior silty clay; 11 percent yellowish brown (10YR 5/8) medium distinct mottles; weak medium subangular blocky, and moderate fine subangular blocky structure; firm; 0.5 very fine roots; dark gray (10YR 4/1), moist, clay films on faces of peds; fragments; neutral, pH 6.8, hellige-truog; gradual smooth boundary. Lab sample # 85P02600. few very fine roots; common medium distinct 10YR58 mottles; continuous - phpvsfiid 218856; continuous - phpvsfiid 218856
    1Bt3—69 to 79 centimeters (27.2 to 31.1 inches); light brownish gray (2.5Y 6/2) interior silty clay; 1 percent strong brown (7.5YR 5/8) medium distinct and 11 percent yellowish brown (10YR 5/8) medium distinct mottles; weak fine prismatic, and moderate fine and medium subangular blocky structure; firm; 0.5 very fine roots; grayish brown (2.5Y 5/2), moist, clay films on faces of peds and very dark gray (10YR 3/1), moist, organic stains on faces of peds; 11 percent fine dark concretions; fragments; neutral, pH 6.8, hellige-truog. Lab sample # 85P02601. common fine dark concretions concentrations; few very fine roots; common medium distinct 10YR58 mottles; few medium distinct 7.5YR58 mottles; continuous - phpvsfiid 218857; patchy - phpvsfiid 218858; continuous - phpvsfiid 218857; patchy - phpvsfiid 218858
    1Bt3—79 to 89 centimeters (31.1 to 35.0 inches); light brownish gray (2.5Y 6/2) interior silty clay; 1 percent strong brown (7.5YR 5/8) medium distinct and 11 percent yellowish brown (10YR 5/8) medium distinct mottles; weak fine prismatic, and moderate fine subangular blocky structure; firm; 0.5 very fine roots; grayish brown (2.5Y 5/2), moist, clay films on faces of peds and very dark gray (10YR 3/1), moist, organic stains on faces of peds; 1 percent fine dark concretions; fragments; neutral, pH 6.8, hellige-truog; gradual smooth boundary. Lab sample # 85P02602. few fine dark concretions concentrations; few very fine roots; common medium distinct 10YR58 mottles; few medium distinct 7.5YR58 mottles; continuous - phpvsfiid 218859; patchy - phpvsfiid 218860; continuous - phpvsfiid 218859; patchy - phpvsfiid 218860
    1Bt4—89 to 107 centimeters (35.0 to 42.1 inches); light brownish gray (2.5Y 6/2) interior silty clay loam; 11 percent strong brown (7.5YR 5/6) medium distinct and 11 percent strong brown (7.5YR 4/6) medium distinct mottles; weak fine prismatic, and moderate fine and medium subangular blocky structure; firm; 0.5 very fine roots; grayish brown (2.5Y 5/2), moist, clay films on faces of peds; 11 percent medium dark concretions; fragments; neutral, pH 6.8, hellige-truog; gradual smooth boundary. Not sampled.; common medium dark concretions concentrations; few very fine roots; common medium distinct 7.5YR56 mottles; common medium distinct 7.5YR46 mottles; discontinuous - phpvsfiid 218861; discontinuous - phpvsfiid 218861
    1Bt5—107 to 124 centimeters (42.1 to 48.8 inches); light brownish gray (2.5Y 6/2) interior silty clay loam; 1 percent strong brown (7.5YR 5/6) medium distinct and 11 percent strong brown (7.5YR 4/6) medium distinct mottles; weak medium prismatic, and moderate medium subangular blocky structure; firm; 0.5 very fine roots; grayish brown (2.5Y 5/2), moist, clay films on faces of peds; 11 percent fine dark concretions; fragments; neutral, pH 6.8, hellige-truog; gradual smooth boundary. Not sampled.; common fine dark concretions concentrations; few very fine roots; common medium distinct 7.5YR46 mottles; few medium distinct 7.5YR56 mottles; discontinuous - phpvsfiid 218862; discontinuous - phpvsfiid 218862
    1BC—124 to 152 centimeters (48.8 to 59.8 inches); light brownish gray (2.5Y 6/2) interior silty clay loam; 11 percent strong brown (7.5YR 4/6) medium distinct mottles; weak medium prismatic structure; firm; grayish brown (2.5Y 5/2), moist, clay films on faces of peds; 1 percent fine dark concretions and 11 percent coarse iron concretions; fragments; neutral, pH 6.8, hellige-truog. Not sampled.; few fine dark concretions concentrations; common coarse iron concretions concentrations; common medium distinct 7.5YR46 mottles; discontinuous - phpvsfiid 218863; discontinuous - phpvsfiid 218863