IDENTIFIERS

  • Current Taxon Name (Soil Name): Coulterville
  • OSD
  • Series Extent
  • User Site ID: 1979IL157059
  • User Pedon ID: 1979IL157059
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - IL SCL
  • Lab Pedon # - 79IL157059
  • NCSS Pedon Lab Data NASIS Record ID - 21160
  • Print Date: 12/4/2024

    • 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: 38.0452529
  • Std. Longitude: -89.6343156
  • Datum: WGS84
  • Township: 5S
  • Range: 5W
  • Section: 34
  • PLSS Details: 500 feet N & 1000 feet W of SE corner
  • 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-A6—Steeleville, Illinois

    • PEDON

  • Describers Name: CCM, RWS
  • Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Aeric Epiaqualfs
  • Current Taxon Kind: taxadjunct
  • Pedon Type: map unit inclusion
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: PedonPC
  • Pedon #: 59
  • Correlated Information:
  • Soil Name - Coulterville
  • PSC - 23 to 73 cm.
  • Classificaton Date - 1/4/2010
  • Moisture Class - aquic
  • Moisture Subclass - aeric
  • Sampled As Information:
  • Soil Name - Tamalco
  • Classificaton Date - 6/1/1979
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: Peoria loess
  • Landscape: till plain
  • Landform: divide, drainageway
  • Runoff: medium
  • Drainage Class: moderately well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 6/1/1979 (actual site observation date)
  • Air Photo ID:
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - hayland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Yield Study ID -
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    natric

    —

    48 - 175

    —
    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    natric horizon

    0—23

    23—66

    48—175

    —-

    —-

    —-
    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

    —

    —

    140

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 15 centimeters (0.0 to 5.9 inches); dark grayish brown (10YR 4/2) silt loam; friable; 5.0 roots between peds; fragments; neutral, pH 6.8, lamotte-morgan; abrupt smooth boundary. Lab sample # IL26730; observed in push tube
    A2—15 to 23 centimeters (5.9 to 9.1 inches); brown (10YR 5/3) silt loam; moderate medium platy structure; friable; 3.0 roots between peds; fragments; neutral, pH 6.8, lamotte-morgan; abrupt smooth boundary. Lab sample # IL26731; observed in push tube
    B21t—23 to 33 centimeters (9.1 to 13.0 inches); reddish brown (5YR 4/4) silty clay; strong fine prismatic parts to strong fine angular blocky structure; very firm; 3.0 roots between peds; distinct brown (7.5YR 4/4), moist, clay films on all faces of peds; 1 percent fine prominent iron-manganese concretions in matrix; fragments; moderately acid, pH 5.8, lamotte-morgan; clear smooth boundary. Lab sample # IL26732; observed in push tube. continuous - phpvsfiid 480602; continuous - phpvsfiid 480602
    B22t—33 to 41 centimeters (13.0 to 16.1 inches); brown (10YR 4/3) silty clay; moderate medium prismatic parts to weak medium angular blocky structure; very firm; 3.0 roots between peds; faint dark yellowish brown (10YR 4/4), moist, clay films on all faces of peds; fragments; moderately acid, pH 6.0, lamotte-morgan; clear smooth boundary. Lab sample # IL26733; observed in push tube. continuous - phpvsfiid 480603; continuous - phpvsfiid 480603
    B23t—41 to 48 centimeters (16.1 to 18.9 inches); brown (10YR 5/3) silty clay loam; 10 percent reddish brown (5YR 4/4) fine prominent and 10 percent reddish gray (5YR 5/2) fine distinct mottles; weak medium prismatic parts to weak coarse subangular blocky structure; firm; 3.0 roots between peds; distinct brown (10YR 4/3), moist, clay films on all faces of peds; 1 percent fine prominent iron-manganese concretions in matrix; fragments; neutral, pH 7.2, lamotte-morgan; clear smooth boundary. Lab sample # IL26734; observed in push tube. patchy - phpvsfiid 480605; patchy - phpvsfiid 480605
    B24t—48 to 66 centimeters (18.9 to 26.0 inches); brown (10YR 4/3) silty clay loam; 10 percent reddish brown (5YR 4/4) fine prominent and 10 percent grayish brown (10YR 5/2) medium distinct mottles; weak coarse prismatic parts to weak coarse subangular blocky structure; firm; 0.6 roots between peds; faint brown (10YR 4/3), moist, clay films on all faces of peds; 1 percent fine prominent iron-manganese concretions in matrix; fragments; slightly alkaline, pH 7.6, lamotte-morgan; clear smooth boundary. Lab sample # IL26735; observed in push tube. patchy - phpvsfiid 480604; patchy - phpvsfiid 480604
    B3—66 to 132 centimeters (26.0 to 52.0 inches); brown (10YR 5/3) silt loam; 25 percent reddish brown (5YR 4/4) medium prominent and 25 percent grayish brown (10YR 5/2) medium mottles; weak coarse prismatic structure; firm; fragments; moderately alkaline, pH 8.2, lamotte-morgan; gradual smooth boundary. Lab sample # IL26736, IL26737; observed in push tube. Horizon split for sampling: IL26736 66 to 99 cm, IL26737 99 to 132 cm.
    C1—132 to 175 centimeters (52.0 to 68.9 inches); grayish brown (10YR 5/2) silt loam; 25 percent brown (7.5YR 4/4) medium prominent and 25 percent brown (10YR 5/3) medium faint mottles; structureless massive; friable; fragments; slightly alkaline, pH 7.6, lamotte-morgan. Lab sample # IL26738; observed in push tube