IDENTIFIERS

  • Current Taxon Name (Soil Name): Keomah
  • OSD
  • Series Extent
  • User Site ID: S2003IA183002
  • User Pedon ID: S2003IA183002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 04N0285
  • NCSS Pedon Lab Data NASIS Record ID - 16950
  • Print Date: 5/19/2024

    • 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: 41.3163071
  • Std. Longitude: -91.8953018
  • Datum: WGS84
  • Township: 75N
  • Range: 9W
  • Section: 9
  • PLSS Details: 2590 feet south and 2000 feet west of the northeast corner
  • Country: US—United States
  • State: Iowa
  • County: IA183—Washington
  • MLRA: 108—Illinois and Iowa Deep Loess and Drift
  • Regional Office: NC—North Central
  • MLRA Soil Survey Area: NC-WAV—Waverly, Iowa
  • Non-MLRA Soil Survey Area: IA183—Washington County, Iowa

    • PEDON

  • Describers Name: Sam Steckly
  • Current Taxonomic Class: Fine, smectitic, mesic Aeric Endoaqualfs
  • Current Taxon Kind: series
  • Pedon Type: OSD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Windows Pedon
  • Pedon #: 2
  • Correlated Information:
  • Soil Name - Keomah
  • PSC - 46 to 96 cm.
  • Classificaton Date - 7/15/2005
  • Sampled As Information:
  • Soil Name - Keomah
  • Classificaton Date - 12/3/2003
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: loess silty
  • Drainage Class: somewhat poorly
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 12/3/2003 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - crop cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • 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

    —

    —

    —

    —

    864

    —

    —

    11

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    —

    —

    —

    —

    —

    —

    —

    —

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    Ap—0 to 20 centimeters (0.0 to 7.9 inches); dark grayish brown (10YR 4/2), gray (10YR 6/1), dry; silt loam; weak fine granular structure; friable; dark gray (10YR 4/1), moist, coats on faces of peds; fragments; moderately acid, pH 5.8; abrupt smooth boundary. Lab sample # 04N01327, 04N01328; observed in pit, large or quarry. Horizon subdivided for sampling at 12 cm.
    E—20 to 38 centimeters (7.9 to 15.0 inches); brown (10YR 5/3) silt loam; weak thin platy structure; friable; 2 percent dark gray (10YR 4/1), moist, on horizontal faces of peds; 2 percent fine distinct brown (7.5YR 4/4), moist, oxide masses; fragments; moderately acid, pH 5.8; clear smooth boundary. Lab sample # 04N01329; observed in pit, large or quarry
    BE—38 to 46 centimeters (15.0 to 18.1 inches); brown (10YR 5/3) silty clay loam; moderate fine subangular blocky, and strong very fine subangular blocky structure; friable; light brownish gray (10YR 6/2), dry, silt coats and 2 percent dark grayish brown (10YR 4/2), moist, and dark yellowish brown (10YR 4/4), moist, clay films on faces of peds; 2 percent fine distinct dark gray (10YR 4/1), moist, iron depletions; 2 percent fine black (10YR 2/1), moist, iron-manganese concretions; fragments; strongly acid, pH 5.3; gradual smooth boundary. Lab sample # 04N01330; observed in pit, large or quarry
    Bt1—46 to 63 centimeters (18.1 to 24.8 inches); brown (10YR 5/3) silty clay; moderate fine subangular blocky structure; firm; light brownish gray (10YR 6/2), dry, silt coats and 30 percent dark grayish brown (10YR 4/2), moist, clay films on faces of peds; 12 percent fine distinct strong brown (7.5YR 5/6), moist, iron-manganese masses; 2 percent fine iron-manganese concretions; fragments; strongly acid, pH 5.3; gradual smooth boundary. Lab sample # 04N01331; observed in pit, large or quarry
    Bt2—63 to 91 centimeters (24.8 to 35.8 inches); grayish brown (10YR 5/2) and brown (10YR 5/3) silty clay; moderate fine and medium subangular blocky structure; firm; dark grayish brown (10YR 4/2), moist, clay films and 2 percent silt coats on faces of peds; 2 percent fine distinct strong brown (7.5YR 5/6), moist, masses of oxidized iron; fragments; strongly acid, pH 5.3; gradual smooth boundary. Lab sample # 04N01332; observed in pit, large or quarry. continuous - phpvsfiid 289024; continuous - phpvsfiid 289024
    Bt3—91 to 112 centimeters (35.8 to 44.1 inches); grayish brown (2.5Y 5/2) silty clay loam; weak medium prismatic parts to moderate medium angular blocky structure; firm; dark grayish brown (2.5Y 4/2), moist, on faces of peds and clay films; 25 percent fine and medium distinct yellowish brown (10YR 5/8), moist, and strong brown (7.5YR 5/6), moist, iron-manganese masses; fragments; strongly acid, pH 5.3; gradual smooth boundary. Lab sample # 04N01333; observed in pit, large or quarry. discontinuous - phpvsfiid 289027; discontinuous - phpvsfiid 289027
    Bt4—112 to 132 centimeters (44.1 to 52.0 inches); grayish brown (2.5Y 5/2) silty clay loam; weak medium prismatic parts to weak fine and medium subangular blocky structure; friable; clay films on faces of peds and in pores; 25 percent medium distinct strong brown (7.5YR 5/6), moist, and yellowish brown (10YR 5/8), moist, masses of dark accumulation; 2 percent fine iron-manganese concretions; fragments; strongly acid, pH 5.3; gradual wavy boundary. Lab sample # 04N01334; observed in pit, large or quarry. discontinuous - phpvsfiid 289028; discontinuous - phpvsfiid 289028
    BC—132 to 160 centimeters (52.0 to 63.0 inches); grayish brown (2.5Y 5/2) silty clay loam; weak medium prismatic structure; friable; 25 percent medium distinct strong brown (7.5YR 5/6), moist, and yellowish brown (10YR 5/8), moist, masses of dark accumulation; 2 percent fine black (10YR 2/1), moist, iron-manganese concretions; fragments; slightly acid, pH 6.3; gradual smooth boundary. Lab sample # 04N01335; observed in pit, large or quarry
    C—160 to 203 centimeters (63.0 to 79.9 inches); grayish brown (2.5Y 5/2) silt loam; massive; friable; 25 percent medium distinct red (7.5R 5/6), moist, and yellowish brown (10YR 5/8), moist, masses of dark accumulation; 2 percent fine black (10YR 2/1), moist, iron-manganese concretions; fragments. Lab sample # 04N01336; observed in pit, large or quarry