IDENTIFIERS

  • Current Taxon Name (Soil Name): Okaw
  • OSD
  • Series Extent
  • User Site ID: 1977IL157012
  • User Pedon ID: 1977IL157012
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - IL SCL
  • Lab Pedon # - 77IL157012
  • NCSS Pedon Lab Data NASIS Record ID - 20889
  • Print Date: 5/20/2024

    • 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: 38.1274848
  • Std. Longitude: -89.9188470
  • Datum: WGS84
  • Township: 5S
  • Range: 7W
  • Section: 6
  • PLSS Details: 400 feet north and 1060 feet west of center
  • State: Illinois
  • County: IL157—Randolph
  • MLRA: 114—Southern Illinois and Indiana Thin Loess and Till Plain
  • Non-MLRA Soil Survey Area: IL157—Randolph County, Illinois
  • 7.5 Minute USGS Quad: 38089-B8—Red Bud, Illinois

    • PEDON

  • Describers Name: MEL, CCM
  • Current Taxonomic Class: Fine, smectitic, mesic Chromic Vertic Albaqualfs
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: PedonPC
  • Pedon #: 12
  • Correlated Information:
  • Soil Name - Okaw
  • PSC - 33 to 83 cm.
  • Classificaton Date - 7/10/2009
  • Moisture Class - aquic
  • Sampled As Information:
  • Soil Name - Okaw
  • Classificaton Date - 8/1/1977
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

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

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/1/1977 (actual site observation date)
  • Air Photo ID:
  • 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
  • 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

    1

    —

    —

    122

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A1—0 to 10 centimeters (0.0 to 3.9 inches); dark grayish brown (10YR 4/2) silt loam; weak medium granular structure; friable; fragments; moderately acid, pH 5.8; abrupt smooth boundary. Lab sample # IL25211
    A2—10 to 33 centimeters (3.9 to 13.0 inches); 80 percent grayish brown (10YR 5/2) and 20 percent light gray (10YR 7/2) silt loam; weak medium platy, and massive; friable; fragments; very strongly acid, pH 4.8; clear smooth boundary. Lab sample # IL25212
    B21t—33 to 41 centimeters (13.0 to 16.1 inches); dark gray (10YR 4/1) silty clay loam; 10 percent brown (10YR 5/3) medium distinct mottles; moderate medium angular blocky structure; firm; very dark gray (10YR 3/1), moist, clay films on all faces of peds; fragments; very strongly acid, pH 5.0; clear smooth boundary. Lab sample # IL25213. patchy - phpvsfiid 465269; patchy - phpvsfiid 465269
    B22t—41 to 51 centimeters (16.1 to 20.1 inches); dark gray (10YR 4/1) and very dark gray (10YR 3/1) silty clay; 15 percent brown (10YR 5/3) medium distinct and 15 percent yellowish brown (10YR 5/6) medium distinct mottles; weak medium prismatic structure; very firm; very dark gray (10YR 3/1), moist, clay films on all faces of peds; fragments; strongly acid, pH 5.2; clear smooth boundary. Lab sample # IL25214. patchy - phpvsfiid 465270; patchy - phpvsfiid 465270
    B23t—51 to 74 centimeters (20.1 to 29.1 inches); dark grayish brown (10YR 4/2) and dark gray (10YR 4/1) silty clay; 10 percent brown (10YR 5/3) fine faint mottles; weak medium prismatic structure; very firm; dark gray (10YR 4/1), moist, clay films on all faces of peds; fragments; strongly acid, pH 5.2; abrupt smooth boundary. Lab sample # IL25215. continuous - phpvsfiid 465271; continuous - phpvsfiid 465271
    B24t—74 to 94 centimeters (29.1 to 37.0 inches); grayish brown (10YR 5/2) silty clay; weak coarse prismatic structure; very firm; dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; 10 percent fine iron-manganese concretions; fragments; strongly acid, pH 5.5; clear smooth boundary. Lab sample # IL25216. continuous - phpvsfiid 465272; continuous - phpvsfiid 465272
    B3t—94 to 117 centimeters (37.0 to 46.1 inches); grayish brown (10YR 5/2) silty clay loam; 10 percent yellowish brown (10YR 5/6) medium distinct mottles; weak medium prismatic structure; very firm; grayish brown (10YR 5/2), moist, clay films on all faces of peds; 10 percent fine iron-manganese concretions; fragments; neutral, pH 6.6; clear smooth boundary. Lab sample # IL25217. continuous - phpvsfiid 465273; continuous - phpvsfiid 465273
    C1—117 to 157 centimeters (46.1 to 61.8 inches); grayish brown (10YR 5/2) and pale brown (10YR 6/3) silty clay loam; 10 percent strong brown (7.5YR 5/6) medium distinct mottles; moderate medium angular blocky structure; firm; strong brown (7.5YR 5/6), moist, clay films on all faces of peds; 10 percent fine iron-manganese concretions; fragments; neutral, pH 7.2. Lab sample # IL25218. patchy - phpvsfiid 465274; patchy - phpvsfiid 465274