IDENTIFIERS

  • Current Taxon Name (Soil Name): Keomah
  • OSD
  • Series Extent
  • User Site ID: 1958IL113001
  • User Pedon ID: 1958IL113001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - IL SCL
  • Lab Pedon # - 58IL113001
  • NCSS Pedon Lab Data NASIS Record ID - 20474
  • Print Date: 12/17/2024

    • 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: 40.5501121
  • Std. Longitude: -89.2090906
  • Datum: WGS84
  • Township: 24N
  • Range: 1W
  • Section: 10
  • Location Description: 429 FT E of culvert & 50 FT S of center of gravel road in pasture
  • State: Illinois
  • County: IL113—McLean
  • MLRA: 115—Central Mississippi Valley Wooded Slopes
  • Non-MLRA Soil Survey Area: IL113—McLean County, Illinois

    • PEDON

  • Describers Name: HLW, JDA, HRS
  • Current Taxonomic Class: Fine, smectitic, mesic Aeric Endoaqualfs
  • Pedon Record Orgin: PedonPC
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Keomah
  • PSC - 36 to 86 cm.
  • Classificaton Date - 2/22/2010
  • Moisture Class - aquic
  • Moisture Subclass - aeric
  • Sampled As Information:
  • Soil Name - Keomah
  • Classificaton Date - 7/1/1958
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/1/1958 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - tree cover
  • Site Obs. Cover Kind 2 - hardwoods
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • 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

    1.8

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    A1—0 to 10 centimeters (0.0 to 3.9 inches); very dark gray (10YR 3/1) silt loam; weak fine granular structure; friable; 3.0 fine roots; fragments; moderately acid, pH 5.8; abrupt smooth boundary. Lab sample # IL18190
    E1—10 to 20 centimeters (3.9 to 7.9 inches); grayish brown (10YR 5/2) silt loam; weak fine granular structure; friable; 3.0 fine roots; 1 percent worm casts; fragments; strongly acid, pH 5.2; abrupt smooth boundary. Lab sample # IL18191
    E2—20 to 28 centimeters (7.9 to 11.0 inches); brown (10YR 5/3) silt loam; moderate fine granular structure; friable; 3.0 fine roots; 1 percent worm casts; fragments; very strongly acid, pH 4.9; clear smooth boundary. Lab sample # IL18192
    BE—28 to 36 centimeters (11.0 to 14.2 inches); pale brown (10YR 6/3) silty clay loam; moderate very fine subangular blocky structure; friable; 0.6 fine roots; light gray (10YR 7/1), moist, silt coats on all faces of peds; 1 percent worm casts; fragments; very strongly acid, pH 4.7; clear smooth boundary. Lab sample # IL18193. patchy - phpvsfiid 1287562; patchy - phpvsfiid 1287562
    Bt1—36 to 51 centimeters (14.2 to 20.1 inches); brown (10YR 5/3) silty clay loam; 25 percent yellowish brown (10YR 5/4) fine faint and 25 percent light brownish gray (10YR 6/2) fine faint and 25 percent gray (10YR 6/1) fine faint mottles; moderate medium subangular blocky structure; firm; 0.6 fine roots; dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; 1 percent fine very dark gray (10YR 3/1), moist, and reddish brown (5YR 4/3), moist, iron-manganese concretions and 1 percent fine reddish brown (5YR 4/3) masses of oxidized iron and 8 percent fine gray (10YR 6/1) iron depletions and 8 percent fine light brownish gray (10YR 6/2) iron depletions and 8 percent fine yellowish brown (10YR 5/4) masses of oxidized iron; 1 percent worm casts; fragments; extremely acid, pH 4.4; clear smooth boundary. Lab sample # IL18194. continuous - phpvsfiid 1287561; continuous - phpvsfiid 1287561
    Bt2—51 to 71 centimeters (20.1 to 28.0 inches); grayish brown (10YR 5/2) and brown (10YR 5/3) and yellowish brown (10YR 5/4) and light brownish gray (10YR 6/2) and pale brown (10YR 6/3) silty clay loam; weak fine prismatic, and moderate medium subangular blocky structure; firm; 0.6 fine roots; dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; 1 percent fine iron-manganese concretions; 1 percent worm casts; fragments; extremely acid, pH 4.4; clear smooth boundary. Lab sample # IL18195. continuous - phpvsfiid 1287563; continuous - phpvsfiid 1287563
    Bt3—71 to 84 centimeters (28.0 to 33.1 inches); light brownish gray (2.5Y 6/2) and yellowish brown (10YR 5/4) silty clay loam; 10 percent grayish brown (10YR 5/2) fine distinct and 10 percent dark grayish brown (10YR 4/2) fine distinct and 10 percent yellowish brown (10YR 5/8) fine distinct mottles; weak medium prismatic structure; firm; 0.1 roots; dark grayish brown (10YR 4/2), moist, clay films on all faces of peds and very dark gray (10YR 3/1), moist, organoargillans on surfaces along root channels and very dark gray (10YR 3/1), moist, organoargillans on all faces of peds; 10 percent fine yellowish brown (10YR 5/4) and yellowish brown (10YR 5/8) masses of oxidized iron and 20 percent fine dark grayish brown (10YR 4/2) and grayish brown (10YR 5/2) iron depletions and 25 percent fine very dark gray (10YR 3/1), moist, iron-manganese concretions; fragments; very strongly acid, pH 4.8; gradual smooth boundary. Lab sample # IL18196. discontinuous - phpvsfiid 1287565; patchy - phpvsfiid 1287567; discontinuous - phpvsfiid 1287565; patchy - phpvsfiid 1287567
    Bt4—84 to 104 centimeters (33.1 to 40.9 inches); yellowish brown (10YR 5/4) silty clay loam; 25 percent grayish brown (10YR 5/2) medium distinct and 25 percent yellowish brown (10YR 5/6) medium distinct mottles; weak very coarse prismatic structure; firm; black (10YR 2/1), moist, organic stains on all faces of peds; 25 percent fine very dark grayish brown (10YR 3/2), moist, iron-manganese concretions and 25 percent fine grayish brown (10YR 5/2) iron depletions and 25 percent fine yellowish brown (10YR 5/6) masses of oxidized iron; fragments; neutral, pH 6.7; clear smooth boundary. Lab sample # IL18197. discontinuous - phpvsfiid 1287568; discontinuous - phpvsfiid 1287568
    C1—104 to 122 centimeters (40.9 to 48.0 inches); light brownish gray (10YR 6/2) and yellowish brown (10YR 5/6) silt loam; massive; friable; 10 percent black (10YR 2/1), moist, organoargillans on surfaces along root channels; 25 percent very pale brown (10YR 8/2), moist, carbonate concretions throughout; fragments; slight effervescence; slightly alkaline, pH 7.8; gradual smooth boundary. Lab sample # IL18198
    C2—122 to 178 centimeters (48.0 to 70.1 inches); light olive brown (2.5Y 5/4) and yellowish brown (10YR 5/6) and gray (10YR 6/1) silt loam; massive; friable; 10 percent very pale brown (10YR 8/2), moist, carbonate concretions throughout; fragments; strong effervescence; moderately alkaline, pH 8.1. Lab sample # IL18199