IDENTIFIERS

  • Current Taxon Name (Soil Name): Swanwick
  • OSD
  • Series Extent
  • User Site ID: S2010IL157004
  • User Pedon ID: S2010IL157004
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 11N0119
  • NCSS Pedon Lab Data NASIS Record ID - 40120
  • Print Date: 12/8/2025

    • 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: 38.1569778
  • Std. Longitude: -89.7368222
  • Datum: WGS84
  • Township: 4S
  • Range: 6W
  • Section: 26
  • Map Unit: 824C—Swanwick silt loam, 5 to 10 percent slopes
  • 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-B6—Tilden, Illinois

    • PEDON

  • Describers Name: Erik Gerhard, Dwayne Williams, Sam Indorante
  • Pedon Purpose: research site
  • Pedon Record Orgin: NASIS
  • Pedon #: 4
  • Sampled As Information:
  • Soil Name - Swanwick
  • PSC - 25 to 100 cm.
  • Classificaton Date - 9/24/2010
  • Soil Taxonomic Edition - tenth edition
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Anthropogenic Feature: reclaimed land on surface mine
  • Geomorphic Component Hills: interfluve
  • Slope Position: upper third
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/24/2010 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

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    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

    —

    —

    139.6

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    30

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    —

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    Ap1—0 to 27 centimeters (0.0 to 10.6 inches); dark yellowish brown (10YR 4/4) crushed and brown (10YR 4/3) crushed silt loam; 3 percent sand; 76 percent silt; 21 percent clay; weak fine platy, and moderate medium subangular blocky structure; friable; 6.0 very fine roots throughout and 6.0 fine roots throughout; 3 percent prominent yellowish brown (10YR 5/6), moist, masses of oxidized iron with clear boundaries throughout; fragments; moderately acid, pH 6.0, hellige-truog; abrupt smooth boundary. Lab sample # 11N00567; observed in pit, small
    Ap2—27 to 36 centimeters (10.6 to 14.2 inches); dark brown (10YR 3/3) crushed silt loam; 3 percent sand; 78 percent silt; 19 percent clay; moderate very fine platy, and moderate fine platy structure; friable; 6.0 very fine roots throughout; 5 percent prominent strong brown (7.5YR 5/8), moist, masses of oxidized iron with clear boundaries throughout and 5 percent prominent black (N 2/0), moist, manganese coatings; fragments; moderately acid, pH 6.0, hellige-truog; abrupt smooth boundary. Lab sample # 11N00568; observed in pit, small
    Bw1—36 to 101 centimeters (14.2 to 39.8 inches); brown (10YR 5/3) broken face and yellowish brown (10YR 5/4) broken face and 20 percent light gray (2.5Y 7/1) broken face silty clay loam; 3 percent sand; 69 percent silt; 28 percent clay; strong medium platy, and strong fine angular blocky, and strong medium subangular blocky structure; firm; 1.0 very fine roots between peds; fragments; strongly acid, pH 5.5, hellige-truog; clear smooth boundary. Lab sample # 11N00569; observed in pit, small
    Bw2—101 to 134 centimeters (39.8 to 52.8 inches); 35 percent brown (7.5YR 4/4) broken face and 35 percent brown (7.5YR 5/4) broken face loam; 21 percent clay; massive; friable; 5 percent by volume flat angular 2-15-75 millimeter mixed fragments; slightly acid, pH 6.5, hellige-truog; abrupt smooth boundary. Lab sample # 11N00570; observed in pit, small. Gobb
    C—134 to 203 centimeters (52.8 to 79.9 inches); light olive brown (2.5Y 5/3) broken face gravelly clay loam; 48 percent clay; massive; firm; 5 percent by volume nonflat subrounded 5-10-75 millimeter mixed fragments and 10 percent by volume nonflat subrounded 76-80-250 millimeter mixed fragments; moderately alkaline, pH 8.0, hellige-truog. Lab sample # 11N00571. Gobb