IDENTIFIERS

  • Current Taxon Name (Soil Name): Downs
  • OSD
  • Series Extent
  • User Site ID: 1988IL169028
  • User Pedon ID: S1988IL169028
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - IL SCL
  • Lab Pedon # - 88IL169028
  • NCSS Pedon Lab Data NASIS Record ID - 22139
  • Print Date: 12/6/2025

    • 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: 40.1038222
  • Std. Longitude: -90.5844500
  • Datum: WGS84
  • Township: 2N
  • Range: 2W
  • Section: 36
  • PLSS Details: 495 feet east and 561 feet north of the southwest corner
  • State: Illinois
  • County: IL169—Schuyler
  • MLRA: 115—Central Mississippi Valley Wooded Slopes
  • Non-MLRA Soil Survey Area: IL169—Schuyler County, Illinois

    • PEDON

  • Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Mollic Hapludalfs
  • Pedon Type: map unit inclusion
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: PedonPC
  • Pedon #: 28
  • Correlated Information:
  • Soil Name - Downs
  • PSC - 23 to 73 cm.
  • Classificaton Date - 10/2/2008
  • Moisture Class - udic
  • Sampled As Information:
  • Soil Name - Downs
  • Classificaton Date - 1/1/1988
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: Peoria loess
  • Landscape: upland
  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 1/1/1988 (actual site observation date)
  • Air Photo ID:
  • Surface Cover Properties:
  • 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—23

    23—94

    —-

    —-

    —-
    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

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 23 centimeters (0.0 to 9.1 inches); very dark grayish brown (10YR 3/2), brown (10YR 5/3), dry; silt loam; moderate fine granular structure; friable; 5.0 fine roots between peds; fragments; neutral, pH 7.0, unspecified; abrupt smooth boundary. Lab sample # IL34131
    Bt1—23 to 46 centimeters (9.1 to 18.1 inches); dark yellowish brown (10YR 4/4) silty clay loam; moderate fine subangular blocky structure; friable; 5.0 fine roots between peds; distinct dark brown (10YR 3/3), moist, clay films on all faces of peds; 1 percent fine prominent iron-manganese concretions in matrix; fragments; neutral, pH 7.0, unspecified; clear smooth boundary. Lab sample # IL34132. continuous - phpvsfiid 1498475; continuous - phpvsfiid 1498475
    Bt2—46 to 61 centimeters (18.1 to 24.0 inches); yellowish brown (10YR 5/4) silty clay loam; moderate medium subangular blocky structure; friable; 0.6 very fine roots between peds; distinct brown (10YR 4/3), moist, clay films on all faces of peds; 10 percent fine prominent iron-manganese concretions in matrix and 10 percent medium distinct yellowish brown (10YR 5/8), moist, masses of oxidized iron throughout; fragments; neutral, pH 7.0, unspecified; clear smooth boundary. Lab sample # IL34133. continuous - phpvsfiid 1498476; continuous - phpvsfiid 1498476
    Bt3—61 to 81 centimeters (24.0 to 31.9 inches); yellowish brown (10YR 5/4) silty clay loam; moderate medium subangular blocky structure; friable; 0.6 very fine roots between peds; distinct brown (10YR 4/3), moist, clay films on all faces of peds; 1 percent medium prominent light brownish gray (2.5Y 6/2), moist, iron depletions throughout and 10 percent fine prominent iron-manganese concretions in matrix and 10 percent medium distinct brownish yellow (10YR 6/6), moist, masses of oxidized iron throughout and 10 percent medium distinct yellowish brown (10YR 5/8), moist, masses of oxidized iron throughout; fragments; moderately acid, pH 5.8, unspecified; clear smooth boundary. Lab sample # IL34134. continuous - phpvsfiid 1498477; continuous - phpvsfiid 1498477
    Bt4—81 to 94 centimeters (31.9 to 37.0 inches); yellowish brown (10YR 5/4) silty clay loam; moderate medium subangular blocky structure; friable; 0.6 very fine roots between peds; prominent brown (10YR 4/3), moist, clay films on all faces of peds; 10 percent medium prominent light brownish gray (2.5Y 6/2), moist, iron depletions throughout and 10 percent medium distinct brownish yellow (10YR 6/6), moist, masses of oxidized iron throughout and 10 percent medium distinct yellowish brown (10YR 5/8), moist, masses of oxidized iron throughout and 25 percent fine prominent iron-manganese concretions in matrix; fragments; moderately acid, pH 5.8, unspecified; clear smooth boundary. Lab sample # IL34135. patchy - phpvsfiid 1498478; patchy - phpvsfiid 1498478
    BC—94 to 122 centimeters (37.0 to 48.0 inches); yellowish brown (10YR 5/4) silt loam; weak medium subangular blocky structure; friable; 0.6 very fine roots between peds; prominent brown (10YR 4/3), moist, clay films on all faces of peds; 10 percent medium distinct yellowish brown (10YR 5/8) masses of oxidized iron in matrix and 10 percent medium distinct light brownish gray (2.5Y 6/2), moist, iron depletions in matrix and 25 percent fine prominent iron-manganese concretions in matrix; fragments; strongly acid, pH 5.3, unspecified; clear smooth boundary. Lab sample # IL34136. patchy - phpvsfiid 1498474; patchy - phpvsfiid 1498474
    C1—122 to 140 centimeters (48.0 to 55.1 inches); yellowish brown (10YR 5/4) silt loam; 10 percent light brownish gray (2.5Y 6/2) medium distinct mottles; structureless massive; friable; 0.6 fine roots between peds; prominent dark brown (10YR 3/3), moist, organoargillans on surfaces along pores; 10 percent coarse distinct brownish yellow (10YR 6/6) masses of oxidized iron in matrix and 10 percent medium distinct light brownish gray (2.5Y 6/2), moist, iron depletions in matrix and 25 percent fine prominent iron-manganese concretions in matrix; fragments; moderately acid, pH 5.8, unspecified; clear smooth boundary. Lab sample # IL34137. patchy - phpvsfiid 1498473; patchy - phpvsfiid 1498473
    C2—140 to 152 centimeters (55.1 to 59.8 inches); light yellowish brown (10YR 6/4) silt loam; 10 percent light brownish gray (2.5Y 6/2) medium distinct and 10 percent brownish yellow (10YR 6/8) coarse distinct mottles; structureless massive; friable; 0.6 fine roots between peds; prominent dark brown (10YR 3/3), moist, organoargillans on surfaces along pores; 10 percent coarse distinct brownish yellow (10YR 6/8) masses of oxidized iron in matrix and 10 percent medium distinct light brownish gray (2.5Y 6/2), moist, iron depletions in matrix and 25 percent fine prominent iron-manganese concretions in matrix; fragments; moderately acid, pH 5.8, unspecified. patchy - phpvsfiid 1498479; patchy - phpvsfiid 1498479