IDENTIFIERS

  • Current Taxon Name (Soil Name): Okaw
  • OSD
  • Series Extent
  • User Site ID: S1980IL133026
  • User Pedon ID: 80IL133026
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 83P0358
  • NCSS Pedon Lab Data NASIS Record ID - 52595
  • Print Date: 3/2/2025

    • 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: 38.2322235
  • Std. Longitude: -89.9205551
  • Datum: WGS84
  • Township: 3S
  • Range: 7W
  • Section: 31
  • PLSS Details: 366 meters E and 320 meters S of the NW corner
  • State: Illinois
  • County: IL133—Monroe
  • MLRA: 114—Southern Illinois and Indiana Thin Loess and Till Plain

    • PEDON

  • Describers Name: Higgins and Christ
  • Current Taxonomic Class: Fine, smectitic, mesic Typic Albaqualfs
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 26
  • Correlated Information:
  • Soil Name - Okaw
  • Classificaton Date - 7/11/2007
  • Moisture Class - aquic
  • Sampled As Information:
  • Soil Name - Okaw
  • Taxonomic Class - Fine, montmorillonitic, mesic Typic Albaqualf
  • Taxon Kind - series
  • Classificaton Date - 5/1/1980
  • Moisture Class - aquic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: intermontane basin
  • Landform: terrace—stream or lake
  • Drainage Class: poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 5/1/1980 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • 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

    —

    —

    40

    —

    90

    60

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    1Ap—0 to 25 centimeters (0.0 to 9.8 inches); brown (10YR 5/3) interior, light gray (10YR 7/2) interior, dry; silt loam; 1 percent yellowish brown (10YR 5/6) fine distinct mottles; moderate fine granular structure; friable; 2.5 fine roots throughout; 11 percent fine iron-manganese concretions; fragments; slightly acid, pH 6.3, lamotte-morgan; abrupt smooth boundary. Lab sample # 83P01636. common fine iron-manganese concretions concentrations; common fine roots throughout; few fine distinct 10YR56 mottles
    1E—25 to 43 centimeters (9.8 to 16.9 inches); light brownish gray (10YR 6/2) interior, light gray (10YR 7/2) interior, dry; silt loam; 1 percent yellowish brown (10YR 5/6) fine distinct mottles; moderate fine angular blocky structure; friable; 0.5 fine roots throughout; white (10YR 8/1) skeletans on faces of peds; 11 percent fine iron-manganese concretions; fragments; slightly acid, pH 6.3, lamotte-morgan; clear smooth boundary. Lab sample # 83P01637. common fine iron-manganese concretions concentrations; few fine roots throughout; few fine distinct 10YR56 mottles; continuous - phpvsfiid 215932; continuous - phpvsfiid 215932
    1Bg—43 to 51 centimeters (16.9 to 20.1 inches); weak red (2.5YR 5/2) interior silty clay loam; 1 percent strong brown (7.5YR 5/6) fine prominent and 1 percent dark grayish brown (10YR 4/2) fine prominent mottles; moderate fine angular blocky structure; friable; 0.5 very fine roots throughout; 37 percent white (10YR 8/1), moist, skeletans on faces of peds; 1 percent fine iron-manganese concretions; fragments; very strongly acid, pH 4.8, hellige-truog; gradual smooth boundary. Lab sample # 83P01638. few fine iron-manganese concretions concentrations; common skeletans (sand or silt) surface features on faces of peds; few very fine roots throughout; few fine prominent 7.5YR56 mottles; few fine prominent 10YR42 mottles
    2Btg1—51 to 66 centimeters (20.1 to 26.0 inches); grayish brown (2.5Y 5/2) interior silty clay; 11 percent strong brown (7.5YR 5/6) fine prominent mottles; moderate medium prismatic, and moderate medium angular blocky structure; firm; 0.5 very fine roots throughout; 55 percent dark grayish brown (10YR 4/2), moist, clay films on faces of peds; 1 percent fine iron-manganese concretions; fragments; very strongly acid, pH 4.8, lamotte-morgan; gradual smooth boundary. Lab sample # 83P01639. few fine iron-manganese concretions concentrations; many clay films surface features on faces of peds; few very fine roots throughout; common fine prominent 7.5YR56 mottles
    2Btg2—66 to 81 centimeters (26.0 to 31.9 inches); grayish brown (2.5Y 5/2) interior silty clay; 1 percent brown (7.5YR 4/4) fine prominent and 11 percent strong brown (7.5YR 5/6) fine prominent mottles; moderate medium prismatic, and moderate medium angular blocky structure; firm; 0.5 very fine roots throughout; 37 percent dark grayish brown (10YR 4/2), moist, clay films on faces of peds and 37 percent white (10YR 8/1), moist, skeletans on faces of peds; 1 percent fine iron-manganese concretions; fragments; very strongly acid, pH 4.8, lamotte-morgan; gradual smooth boundary. Lab sample # 83P01640. few fine iron-manganese concretions concentrations; common clay films surface features on faces of peds; common skeletans (sand or silt) surface features on faces of peds; few very fine roots throughout; common fine prominent 7.5YR56 mottles; few fine prominent 7.5YR44 mottles
    2Btg3—81 to 107 centimeters (31.9 to 42.1 inches); grayish brown (2.5Y 5/2) interior silty clay; 11 percent brown (7.5YR 4/4) fine prominent mottles; moderate medium prismatic, and moderate medium angular blocky structure; firm; 0.5 very fine roots throughout; 37 percent dark grayish brown (10YR 4/2), moist, clay films on faces of peds; 1 percent fine iron-manganese concretions; fragments; very strongly acid, pH 4.8, lamotte-morgan; gradual smooth boundary. Lab sample # 83P01641. few fine iron-manganese concretions concentrations; common clay films surface features on faces of peds; few very fine roots throughout; common fine prominent 7.5YR44 mottles
    2Btg4—107 to 130 centimeters (42.1 to 51.2 inches); grayish brown (2.5Y 5/2) interior silty clay; 11 percent brown (7.5YR 4/4) fine prominent mottles; moderate medium prismatic, and moderate medium angular blocky structure; firm; 0.5 very fine roots throughout; 15 percent white (10YR 8/1), moist, skeletans on faces of peds and 55 percent very dark grayish brown (2.5Y 3/2), moist, clay films on faces of peds; 1 percent fine iron-manganese concretions; fragments; strongly acid, pH 5.3, lamotte-morgan; gradual smooth boundary. Lab sample # 83P01642. few fine iron-manganese concretions concentrations; many clay films surface features on faces of peds; few skeletans (sand or silt) surface features on faces of peds; few very fine roots throughout; common fine prominent 7.5YR44 mottles
    2Btg5—130 to 152 centimeters (51.2 to 59.8 inches); grayish brown (2.5Y 5/2) interior silty clay; 1 percent brown (7.5YR 4/4) fine prominent mottles; moderate medium prismatic, and moderate medium angular blocky structure; firm; 0.5 very fine roots throughout; 37 percent dark olive gray (5Y 3/2), moist, clay films on faces of peds; 1 percent fine iron-manganese concretions; fragments; slightly acid, pH 6.3, lamotte-morgan. Lab sample # 83P01643. few fine iron-manganese concretions concentrations; common clay films surface features on faces of peds; few very fine roots throughout; few fine prominent 7.5YR44 mottles