IDENTIFIERS

  • Current Taxon Name (Soil Name): Harco
  • OSD
  • Series Extent
  • User Site ID: 1989IL113012
  • User Pedon ID: 1989IL113012
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - IL SCL
  • Lab Pedon # - 89IL113012
  • NCSS Pedon Lab Data NASIS Record ID - 22187
  • Print Date: 4/3/2025

    • 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: 40.5236861
  • Std. Longitude: -89.0420639
  • Datum: WGS84
  • Township: 24N
  • Range: 1E
  • Section: 24
  • PLSS Details: 2550 feet north and 289 feet west of the southeast corner
  • State: Illinois
  • County: IL113—McLean
  • MLRA: 108—Illinois and Iowa Deep Loess and Drift
  • Non-MLRA Soil Survey Area: IL113—McLean County, Illinois

    • PEDON

  • Describers Name: K.H.
  • Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Aquic Argiudolls
  • Pedon Type: map unit inclusion
  • Pedon Record Orgin: PedonPC
  • Pedon #: 12
  • Correlated Information:
  • Soil Name - Harco
  • PSC - 43 to 93 cm.
  • Classificaton Date - 10/2/2008
  • Moisture Class - udic
  • Moisture Subclass - aquic
  • Sampled As Information:
  • Soil Name - Harco
  • Classificaton Date - 9/1/1988
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: Wisconsinan pedisediment
  • Landscape: upland
  • Landform: ridge
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/1/1988 (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

    mollic epipedon

    argillic horizon

    0—43

    43—81

    —-

    —-
    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

    0

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 23 centimeters (0.0 to 9.1 inches); black (10YR 2/1), dark gray (10YR 4/1), dry; silt loam; weak fine granular parts to weak fine subangular blocky structure; friable; 0.6 fine roots between peds; fragments; neutral, pH 6.7, hellige-truog; gradual smooth boundary. Lab sample # IL34517
    A1—23 to 43 centimeters (9.1 to 16.9 inches); very dark grayish brown (10YR 3/2), gray (10YR 5/1), dry; silty clay loam; weak fine subangular blocky structure; friable; 0.6 fine roots between peds; fragments; neutral, pH 6.8, hellige-truog; clear smooth boundary. Lab sample # IL34518
    Bt—43 to 66 centimeters (16.9 to 26.0 inches); light olive brown (2.5Y 5/4) silty clay loam; 10 percent weak red (2.5YR 4/2) medium faint mottles; moderate medium prismatic parts to moderate fine angular blocky structure; firm; 0.6 fine roots between peds; faint very dark gray (10YR 3/1), moist, clay films on all faces of peds; 10 percent medium distinct iron-manganese masses in matrix; fragments; neutral, pH 6.8, hellige-truog; gradual smooth boundary. Lab sample # IL34519. discontinuous - phpvsfiid 428033; discontinuous - phpvsfiid 428033
    Bt2—66 to 81 centimeters (26.0 to 31.9 inches); light olive brown (2.5Y 5/4) silty clay loam; 25 percent weak red (2.5YR 4/2) medium faint mottles; moderate medium prismatic structure; firm; 0.6 fine roots between peds; faint very dark gray (10YR 3/1), moist, clay films on all faces of peds; 10 percent medium distinct iron-manganese masses in matrix; fragments; neutral, pH 7.3, hellige-truog; abrupt smooth boundary. Lab sample # IL34520. discontinuous - phpvsfiid 428034; discontinuous - phpvsfiid 428034
    BC—81 to 109 centimeters (31.9 to 42.9 inches); grayish brown (2.5Y 5/2) silt loam; red (2.5YR 5/6) medium faint and 25 percent pale red (2.5YR 6/2) medium faint mottles; weak coarse subangular blocky structure; friable; 25 percent medium prominent iron-manganese masses in matrix; fragments; slightly alkaline, pH 7.8, hellige-truog; gradual smooth boundary. Lab sample # IL34521
    C—109 to 152 centimeters (42.9 to 59.8 inches); light yellowish brown (2.5Y 6/4) silt loam; 25 percent pale red (2.5YR 7/2) medium faint mottles; structureless massive; friable; 25 percent medium prominent iron-manganese masses in matrix; fragments; slightly alkaline, pH 7.8, hellige-truog. Lab sample # IL34522