IDENTIFIERS

  • Current Taxon Name (Soil Name): COULTERVILLE
  • OSD
  • Series Extent
  • User Site ID: S1990IL189041
  • User Pedon ID: S1990IL189041
  • Vegetation Plot ID: S1990IL189041
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 91P0296
  • NCSS Pedon Lab Data NASIS Record ID - 63343
  • Print Date: 12/4/2024

    • 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: 38.4680557
  • Std. Longitude: -89.3249969
  • Datum: WGS84
  • Township: 1S
  • Range: 2W
  • Section: 4
  • PLSS Details: 920 feet E and 1700 feet N of the SW corner
  • State: Illinois
  • County: IL189—Washington
  • MLRA: 113—Central Claypan Areas
  • Non-MLRA Soil Survey Area: IL189—Washington County, Illinois

    • PEDON

  • Describers Name: KDB, MRG, WMM
  • Current Taxonomic Class: Fine-silty, mixed, mesic Aeric Ochraqualfs
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 41
  • Correlated Information:
  • Soil Name - COULTERVILLE
  • PSC - 30 to 80 cm.
  • Classificaton Date - 12/9/2004
  • Moisture Class - aquic
  • Sampled As Information:
  • Soil Name - Coulterville
  • Taxonomic Class - Fine-silty, mixed, mesic Aeric Ochraqualf
  • Taxon Kind - series
  • Classificaton Date - 10/2/1990
  • Moisture Class - aquic
  • Moisture SUBClass - aeric
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess over till
  • Landform: upland slope
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/2/1990 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    MESA

    Medicago sativa

    alfalfa

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    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

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    139

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    Ap—0 to 20 centimeters (0.0 to 7.9 inches); very dark grayish brown (10YR 3/2), 10YR 6/7 (10YR 6/7), dry; silt loam; 17 percent clay; moderate fine granular structure; friable; 3.0 very fine roots and 3.0 fine roots; 10 percent iron-manganese nodules; fragments; slightly acid, pH 6.4; abrupt smooth boundary. Lab sample # 91P01797; dry when described;
    E—20 to 30 centimeters (7.9 to 11.8 inches); dark grayish brown (10YR 4/2) silt loam; 18 percent clay; 3 percent yellowish brown (10YR 5/6) medium distinct mottles; moderate fine platy structure; friable; 3.0 very fine roots and 3.0 fine roots; 30 percent distinct light gray (10YR 7/2), moist, silt coats; 10 percent iron-manganese nodules; fragments; neutral, pH 6.6; abrupt smooth boundary. Lab sample # 91P01798; moist when described;
    Bt1—30 to 43 centimeters (11.8 to 16.9 inches); yellowish brown (10YR 5/4) silty clay loam; 34 percent clay; 3 percent yellowish brown (10YR 5/6) medium distinct mottles; moderate medium subangular blocky structure; firm; 3.0 very fine roots and 0.5 medium roots and 3.0 fine roots; 10 percent distinct very dark gray (10YR 3/1), moist, organic stains and 75 percent distinct dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; 10 percent iron-manganese nodules; fragments; neutral, pH 6.6; abrupt smooth boundary. Lab sample # 91P01799; moist when described;
    Bt2—43 to 56 centimeters (16.9 to 22.0 inches); brown (10YR 5/3) silty clay loam; 37 percent clay; 3 percent yellowish brown (10YR 5/6) medium distinct mottles; moderate medium subangular blocky structure; firm; 0.5 very fine roots and 0.5 medium roots and 0.5 fine roots; 75 percent distinct dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; 10 percent iron-manganese nodules; fragments; neutral, pH 6.8; abrupt smooth boundary. Lab sample # 91P01800; moist when described;
    Bt3—56 to 64 centimeters (22.0 to 25.2 inches); brown (10YR 5/3) silty clay loam; 36 percent clay; 3 percent yellowish brown (10YR 5/6) medium distinct mottles; moderate medium subangular blocky structure; firm; 0.5 very fine roots and 0.5 medium roots and 0.5 fine roots; 30 percent distinct dark grayish brown (10YR 4/2), moist, clay films on all faces of peds and 75 percent distinct very pale brown (10YR 7/3), moist, silt coats; 10 percent iron-manganese nodules; fragments; neutral, pH 7.2; gradual smooth boundary. Lab sample # 91P01801; moist when described;
    Bt4—64 to 74 centimeters (25.2 to 29.1 inches); brown (10YR 5/3) silty clay loam; 35 percent clay; 1 percent yellowish brown (10YR 5/6) fine distinct and 3 percent strong brown (7.5YR 5/6) medium prominent mottles; moderate medium subangular blocky, and moderate medium prismatic structure; firm; 0.5 very fine roots and 0.5 medium roots and 0.5 fine roots; 30 percent distinct grayish brown (10YR 5/2), moist, clay films on all faces of peds; 10 percent iron-manganese nodules; fragments; slightly alkaline, pH 7.5; gradual smooth boundary. Lab sample # 91P01802; moist when described;
    Bt5—74 to 86 centimeters (29.1 to 33.9 inches); brown (10YR 5/3) silty clay loam; 32 percent clay; 1 percent yellowish brown (10YR 5/6) fine distinct and 3 percent strong brown (7.5YR 5/6) medium prominent mottles; moderate medium subangular blocky, and moderate medium prismatic structure; firm; 0.5 very fine roots and 0.5 medium roots and 0.5 fine roots; 30 percent distinct grayish brown (10YR 5/2), moist, clay films on all faces of peds; 10 percent iron-manganese nodules; fragments; slight effervescence; moderately alkaline, pH 8.2; clear smooth boundary. Lab sample # 91P01803; moist when described;
    Btg1—86 to 107 centimeters (33.9 to 42.1 inches); grayish brown (2.5Y 5/2) silt loam; 25 percent clay; 3 percent strong brown (7.5YR 5/6) medium prominent and 3 percent yellowish brown (10YR 5/6) fine prominent mottles; moderate medium subangular blocky, and moderate medium prismatic structure; friable; 0.5 medium roots and 0.5 fine roots; 30 percent distinct grayish brown (10YR 5/2), moist, clay films on all faces of peds; 10 percent iron-manganese nodules; fragments; slight effervescence; moderately alkaline, pH 8.0; gradual smooth boundary. Lab sample # 91P01804; moist when described;
    Btg2—107 to 132 centimeters (42.1 to 52.0 inches); light brownish gray (2.5Y 6/2) silt loam; 22 percent clay; 1 percent brownish yellow (10YR 6/6) fine distinct and 3 percent yellowish brown (10YR 5/6) medium distinct mottles; weak medium prismatic structure; friable; 0.5 fine roots; 30 percent distinct grayish brown (2.5Y 5/2), moist, clay films on all faces of peds; 10 percent iron-manganese nodules; fragments; slightly alkaline, pH 7.8; clear smooth boundary. Lab sample # 91P01805; moist when described;
    Btg3—132 to 152 centimeters (52.0 to 59.8 inches); grayish brown (2.5Y 5/2) silt loam; 23 percent clay; 1 percent brownish yellow (10YR 6/6) fine prominent and 3 percent strong brown (7.5YR 5/6) medium prominent mottles; weak medium prismatic structure; friable; 0.5 fine roots; 30 percent distinct dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; 10 percent iron-manganese nodules; fragments; slightly alkaline, pH 7.8. Lab sample # 91P01806; moist when described;