IDENTIFIERS

  • Current Taxon Name (Soil Name): Okaw
  • OSD
  • Series Extent
  • User Site ID: S1990IL189040
  • User Pedon ID: 90IL189040
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 90P0537
  • NCSS Pedon Lab Data NASIS Record ID - 62470
  • Print Date: 9/24/2024

    • 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: 38.4524994
  • Std. Longitude: -89.5836105
  • Datum: WGS84
  • Township: 1S
  • Range: 4W
  • Section: 7
  • PLSS Details: 2600 feet E and 2360 feet N of SW corner
  • Location Description: Washington County, Illinois.
  • State: Illinois
  • County: IL189—Washington

    • PEDON

  • Current Taxonomic Class: Fine, smectitic, mesic Chromic Vertic Albaqualfs
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 40
  • Correlated Information:
  • Soil Name - Okaw
  • Classificaton Date - 6/15/2007
  • Moisture Class - aquic
  • Sampled As Information:
  • Soil Name - Hurst
  • Taxonomic Class - Fine, montmorillonitic, mesic Hemic Ochraqualf
  • Taxon Kind - series
  • Classificaton Date - 8/1/1990
  • Moisture Class - aquic
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

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

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/1/1990 (actual site observation date)
  • Surface Cover Properties:
  • 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

    2

    —

    —

    124

    —

    270

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 18 centimeters (0.0 to 7.1 inches); dark grayish brown (10YR 4/2), light brownish gray (10YR 6/2), dry; silt loam; moderate very fine and fine granular structure; friable; fragments; neutral, pH 7.2, hellige-truog; abrupt smooth boundary. Lab sample # 90P03064
    Bt1—18 to 36 centimeters (7.1 to 14.2 inches); dark grayish brown (10YR 4/2) silty clay loam; moderate fine and medium subangular blocky structure; friable; fragments; moderately acid, pH 5.9, hellige-truog; clear smooth boundary. Lab sample # 90P03065
    Bt2—36 to 51 centimeters (14.2 to 20.1 inches); dark grayish brown (10YR 4/2) silty clay; 1 percent light gray (10YR 7/2) distinct and 11 percent dark yellowish brown (10YR 4/4) fine faint and 30 percent brown (10YR 5/3) faint mottles; weak medium prismatic, and moderate medium and coarse subangular blocky structure; very firm; fragments; strongly acid, pH 5.2, hellige-truog; clear smooth boundary. Lab sample # 90P03066. few distinct 10YR72 mottles; common fine faint 10YR44 mottles; many faint 10YR53 mottles
    Bt3—51 to 79 centimeters (20.1 to 31.1 inches); brown (10YR 5/3) silty clay loam; 11 percent yellowish brown (10YR 5/6) fine distinct and 30 percent dark gray (10YR 4/1) faint and 30 percent grayish brown (10YR 5/2) faint mottles; weak medium prismatic, and moderate coarse subangular blocky structure; firm; fragments; moderately acid, pH 6.0, hellige-truog; clear smooth boundary. Lab sample # 90P03067. common fine distinct 10YR56 mottles; many faint 10YR41 mottles; many faint 10YR52 mottles
    Btg1—79 to 104 centimeters (31.1 to 40.9 inches); grayish brown (2.5Y 5/2) silty clay loam; 1 percent dark grayish brown (10YR 4/2) distinct and 1 percent grayish brown (10YR 5/2) distinct and 11 percent yellowish brown (10YR 5/6) fine and medium prominent mottles; weak medium prismatic, and moderate coarse subangular blocky structure; friable; fragments; neutral, pH 6.8, hellige-truog; clear smooth boundary. Lab sample # 90P03068. few distinct 10YR42 mottles; few distinct 10YR52 mottles; common fine and medium prominent 10YR56 mottles
    Btg2—104 to 124 centimeters (40.9 to 48.8 inches); light yellowish brown (2.5Y 6/3) silty clay loam; 1 percent dark grayish brown (10YR 4/2) distinct and 11 percent grayish brown (10YR 5/2) fine and medium prominent and 11 percent strong brown (7.5YR 5/6) fine prominent mottles; weak medium prismatic structure; friable; fragments; neutral, pH 7.0, hellige-truog; clear smooth boundary. Lab sample # 90P03069. few distinct 10YR42 mottles; common fine and medium prominent 10YR52 mottles; common fine prominent 7.5YR56 mottles
    Btg3—124 to 180 centimeters (48.8 to 70.9 inches); light brownish gray (2.5Y 6/2) silty clay loam; 1 percent yellowish brown (10YR 5/6) fine prominent and 30 percent light olive brown (2.5Y 5/4) distinct and 30 percent olive gray (5Y 5/2) distinct mottles; moderate medium and coarse angular blocky structure; firm; fragments; slightly alkaline, pH 7.6, hellige-truog. Lab sample # 90P03070. few fine prominent 10YR56 mottles; many distinct 2.5Y54 mottles; many distinct 5Y52 mottles