IDENTIFIERS

  • Current Taxon Name (Soil Name): Corwin
  • OSD
  • Series Extent
  • User Site ID: 1987IL113022
  • User Pedon ID: 1987IL113022
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - IL SCL
  • Lab Pedon # - 87IL113022
  • NCSS Pedon Lab Data NASIS Record ID - 22072
  • Print Date: 1/30/2025

    • 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: 40.6947389
  • Std. Longitude: -88.9700528
  • Datum: WGS84
  • Township: 26N
  • Range: 2E
  • Section: 22
  • PLSS Details: 885 feet W & 150 feet N of the SE corner
  • State: Illinois
  • County: IL113—McLean
  • MLRA: 108—Illinois and Iowa Deep Loess and Drift
  • Non-MLRA Soil Survey Area: IL113—McLean County, Illinois
  • 7.5 Minute USGS Quad: 40088-F8—Gridley, Illinois

    • PEDON

  • Describers Name: CL
  • Current Taxonomic Class: Fine-loamy, mixed, active, mesic Typic Argiudolls
  • Current Taxon Kind: taxadjunct
  • Pedon Record Orgin: PedonPC
  • Pedon #: 22
  • Correlated Information:
  • Soil Name - Corwin
  • Classificaton Date - 1/4/2010
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Varna
  • Classificaton Date - 1/1/1987
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 1/1/1987 (actual site observation date)
  • Air Photo ID:
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Site Obs. Cover Kind 2 - row crop
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Yield Study ID -
    • 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

    —

    —

    220

    —

    270

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    Ap—0 to 18 centimeters (0.0 to 7.1 inches); very dark grayish brown (10YR 3/2) and dark brown (10YR 3/3), grayish brown (10YR 5/2), dry; silt loam; moderate fine granular structure; friable; fragments; neutral, pH 7.0, lamotte-morgan; clear smooth boundary. Lab sample # IL33642
    A—18 to 30 centimeters (7.1 to 11.8 inches); dark brown (10YR 3/3) and brown (10YR 4/3), brown (10YR 5/3), dry; silt loam; moderate fine subangular blocky parts to weak fine granular structure; friable; 25 percent faint very dark gray (10YR 3/1), moist, clay films on all faces of peds; fragments; neutral, pH 7.2, lamotte-morgan; clear smooth boundary. Lab sample # IL33643
    Bt1—30 to 41 centimeters (11.8 to 16.1 inches); yellowish brown (10YR 5/4) silt loam; moderate fine subangular blocky structure; friable; 25 percent distinct dark brown (10YR 3/3), moist, clay films on all faces of peds; fragments; neutral, pH 6.9, lamotte-morgan; clear smooth boundary. Lab sample # IL33644
    2Bt2—41 to 71 centimeters (16.1 to 28.0 inches); dark yellowish brown (10YR 4/4) loam, silt loam; 1 percent light yellowish brown (10YR 6/4) fine distinct mottles; weak medium subangular blocky structure; friable; 10 percent faint dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; 1 percent medium iron-manganese concretions; fragments; neutral, pH 7.2, lamotte-morgan; clear smooth boundary. Lab sample # IL33645
    2Bt3—71 to 89 centimeters (28.0 to 35.0 inches); olive (5Y 5/4) silty clay loam; 10 percent light olive gray (5Y 6/2) fine distinct and 10 percent light olive gray (5Y 6/2) medium distinct mottles; weak medium prismatic structure; friable; 50 percent distinct olive (5Y 4/4), moist, clay films on all faces of peds; 1 percent fine iron-manganese concretions and 1 percent medium iron-manganese concretions; 1 percent by volume rounded mixed fragments; slight effervescence; slightly alkaline, pH 7.6, lamotte-morgan; clear smooth boundary. Lab sample # IL33646
    2Bt4—89 to 102 centimeters (35.0 to 40.2 inches); light olive gray (5Y 6/2) silty clay loam; 10 percent olive yellow (5Y 6/8) fine distinct and 10 percent olive yellow (5Y 6/8) medium distinct mottles; weak coarse prismatic structure; firm; 25 percent distinct olive (5Y 5/4), moist, clay films on all faces of peds; 10 percent fine iron-manganese concretions and 10 percent medium iron-manganese concretions; 1 percent carbonate concretions; 1 percent by volume rounded mixed fragments; strong effervescence; slightly alkaline, pH 7.8, lamotte-morgan; clear smooth boundary. Lab sample # IL33647
    2C—102 to 152 centimeters (40.2 to 59.8 inches); pale olive (5Y 6/3) and light olive gray (5Y 6/2) silt loam; 10 percent olive yellow (5Y 6/8) fine distinct and 10 percent olive yellow (5Y 6/8) medium distinct mottles; massive; firm; 10 percent medium iron-manganese concretions; 1 percent by volume rounded mixed fragments; strong effervescence; moderately alkaline, pH 8.3, lamotte-morgan. Lab sample # IL33648