IDENTIFIERS

  • Current Taxon Name (Soil Name): Okaw
  • OSD
  • Series Extent
  • User Site ID: 1979IL145015
  • User Pedon ID: 1979IL145015
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - IL SCL
  • Lab Pedon # - 79IL145015
  • NCSS Pedon Lab Data NASIS Record ID - 21157
  • Print Date: 12/11/2024

    • 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: 37.9590211
  • Std. Longitude: -89.4218254
  • Datum: WGS84
  • Township: 6S
  • Range: 3W
  • Section: 34
  • PLSS Details: 400 feet W & 140 feet S of center
  • State: Illinois
  • County: IL145—Perry
  • MLRA: 114—Southern Illinois and Indiana Thin Loess and Till Plain
  • Non-MLRA Soil Survey Area: IL145—Perry County, Illinois
  • 7.5 Minute USGS Quad: 37089-H4—Ava, Illinois

    • PEDON

  • Current Taxonomic Class: Fine, smectitic, mesic Chromic Vertic Albaqualfs
  • Current Taxon Kind: series
  • Pedon Type: map unit inclusion
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: PedonPC
  • Pedon #: 15
  • Correlated Information:
  • Soil Name - Okaw
  • PSC - 51 to 101 cm.
  • Classificaton Date - 1/4/2010
  • Moisture Class - aquic
  • Sampled As Information:
  • Soil Name - Okaw
  • Classificaton Date - 8/1/1979
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: Peoria loess over clayey lacustrine sediments
  • Landscape: lake plain
  • Landform: lake terrace
  • Runoff: low
  • Drainage Class: poorly
  • Ponding: rare ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/1/1979 (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 -
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—51

    51—127

    —-

    —-
    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

    —

    —

    121

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 15 centimeters (0.0 to 5.9 inches); dark grayish brown (10YR 4/2) silt loam; 1 percent strong brown (7.5YR 5/6) fine distinct mottles; weak fine granular structure; friable; 0.6 very fine roots between peds; 10 percent fine prominent black (10YR 2/1), moist, iron-manganese concretions in matrix; fragments; slightly acid, pH 6.3; clear smooth boundary. Lab sample # IL26690; observed in push tube
    A21—15 to 36 centimeters (5.9 to 14.2 inches); grayish brown (10YR 5/2) silt loam; 1 percent yellowish brown (10YR 5/4) fine faint mottles; weak fine subangular blocky structure; friable; 0.6 very fine roots between peds; 10 percent fine prominent black (10YR 2/1), moist, iron-manganese concretions in matrix; fragments; very strongly acid, pH 4.7; clear smooth boundary. Lab sample # IL26691; observed in push tube
    A22—36 to 51 centimeters (14.2 to 20.1 inches); light brownish gray (10YR 6/2) silt loam; 1 percent yellowish red (5YR 5/8) fine prominent and 1 percent yellowish brown (10YR 5/6) fine prominent mottles; moderate thick platy structure; friable; 0.6 very fine roots between peds; 10 percent fine prominent black (10YR 2/1), moist, iron-manganese concretions in matrix; fragments; very strongly acid, pH 4.7; abrupt smooth boundary. Lab sample # IL26692; observed in push tube
    IIB21tg—51 to 81 centimeters (20.1 to 31.9 inches); grayish brown (2.5Y 5/2) silty clay; 1 percent yellowish brown (10YR 5/6) fine distinct and 1 percent strong brown (7.5YR 5/8) fine distinct mottles; weak medium prismatic parts to moderate medium subangular blocky structure; firm; 0.6 very fine roots between peds; prominent white (10YR 8/1), dry, silt coats on all faces of peds and 10 percent distinct grayish brown (10YR 5/2), moist, clay films on all faces of peds; 10 percent fine prominent black (10YR 2/1), moist, iron-manganese concretions in matrix; fragments; very strongly acid, pH 4.7; clear smooth boundary. Lab sample # IL26693; observed in push tube. patchy - phpvsfiid 481388; discontinuous - phpvsfiid 481389; patchy - phpvsfiid 481388; discontinuous - phpvsfiid 481389
    IIB22tg—81 to 104 centimeters (31.9 to 40.9 inches); light brownish gray (2.5Y 6/2) silty clay; 10 percent yellowish brown (10YR 5/8) fine prominent mottles; weak coarse prismatic structure; firm; 0.6 very fine roots between peds; 10 percent distinct gray (10YR 5/1), moist, clay films on all faces of peds; 10 percent fine prominent black (10YR 2/1), moist, iron-manganese concretions in matrix; fragments; very strongly acid, pH 4.7; clear smooth boundary. Lab sample # IL26694; observed in push tube. patchy - phpvsfiid 481390; patchy - phpvsfiid 481390
    IIB3tg—104 to 127 centimeters (40.9 to 50.0 inches); light brownish gray (2.5Y 6/2) silty clay; 10 percent yellowish red (5YR 5/8) medium distinct and 10 percent strong brown (7.5YR 5/6) medium distinct mottles; weak coarse prismatic structure; firm; 0.6 very fine roots between peds; 10 percent prominent dark yellowish brown (10YR 4/4), moist, clay films on all faces of peds; 25 percent medium prominent black (10YR 2/1), moist, iron-manganese concretions in matrix; fragments; very strongly acid, pH 4.7; gradual smooth boundary. Lab sample # IL26695; observed in push tube. patchy - phpvsfiid 481391; patchy - phpvsfiid 481391
    IIC1—127 to 142 centimeters (50.0 to 55.9 inches); light brownish gray (2.5Y 6/2) silty clay loam; 10 percent yellowish red (5YR 5/8) medium distinct and 10 percent strong brown (7.5YR 5/8) medium distinct mottles; structureless massive; firm; 0.6 very fine roots between peds; 25 percent coarse prominent black (10YR 2/1), moist, iron-manganese concretions in matrix; fragments; very strongly acid, pH 4.7; clear smooth boundary. Lab sample # IL26696; observed in push tube
    IIC2—142 to 168 centimeters (55.9 to 66.1 inches); light brownish gray (2.5Y 6/2) silt loam; 10 percent brownish yellow (10YR 6/8) medium distinct and 10 percent yellowish red (5YR 5/8) medium distinct mottles; structureless massive; firm; fragments; strongly acid, pH 5.3; clear smooth boundary. Lab sample # IL26697; observed in push tube
    IIC3—168 to 188 centimeters (66.1 to 74.0 inches); light brownish gray (2.5Y 6/2) silty clay loam; 10 percent yellowish brown (10YR 5/6) medium prominent mottles; structureless massive; firm; fragments; neutral, pH 7.0.; observed in push tube