IDENTIFIERS

  • Current Taxon Name (Soil Name): Uniontown
  • OSD
  • Series Extent
  • User Site ID: 03KY145003
  • User Pedon ID: 03KY145002
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - UK
  • Lab Pedon # - 04KY-145-001
  • NCSS Pedon Lab Data NASIS Record ID - 46354
  • Print Date: 4/25/2025

    • 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: 37.1135056
  • Std. Longitude: -88.7034167
  • Datum: WGS84
  • Location Description: McCracken County, KY; 0.7 mile west of JCT of Interstate 24 and KY Hwy 1420 in a cultivated field
  • Map Unit: UoA—Uniontown silt loam, 0 to 2 percent slopes, frequently flooded
  • Country: US—United States
  • State: Kentucky
  • County: KY145—McCracken
  • MLRA: 134—Southern Mississippi Valley Loess
  • Regional Office: 16obsolete—Little Rock, AR
  • MLRA Soil Survey Area: SE-MIL—Milan, Tennessee
  • Non-MLRA Soil Survey Area: KY602—Ballard and McCracken Counties, Kentucky
  • 7.5 Minute USGS Quad: 37088-A6—Paducah West, Kentucky

    • PEDON

  • Describers Name: Jerry McIntosh
  • Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Oxyaquic Hapludalfs
  • Current Taxon Kind: series
  • Pedon Type: TUD pedon
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Uniontown
  • PSC - 33 to 84 cm.
  • Classificaton Date - 12/14/2010
  • Soil Taxonomic Edition - ninth edition
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Dubbs
  • Classificaton Date - 10/31/2003
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: fine-silty alluvium
  • Landscape: river valley
  • Landform: Ohio River stream terrace
  • Geomorphic Component Terraces: tread
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Drainage Class: moderately well
  • Flooding: frequent flooding for brief periods begining in dec
  • Ponding: none ponding
  • Geology: Alluvium member.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/31/2003 (actual site observation date)
  • 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
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    0—33

    33—203

    —33—

    —66—
    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

    —

    —

    98.7

    —

    1250

    —

    200

    14.3

    —

    —

    —

    —

    —

    —

    —

    KY6110

    Paducah

    coop
    Ap—0 to 23 centimeters (0.0 to 9.1 inches); brown (10YR 4/3) silt loam; moderate medium granular structure; friable; 7.0 fine roots; fragments; moderately acid, pH 6.0, pH meter; abrupt smooth boundary.; moist when described; observed in push tube
    AB—23 to 33 centimeters (9.1 to 13.0 inches); dark yellowish brown (10YR 4/4) silty clay loam; moderate fine and medium subangular blocky structure; friable; 7.0 fine roots; 30 percent faint brown (10YR 4/3), moist, organic stains on vertical faces of peds; fragments; strongly acid, pH 5.2, pH meter; clear smooth boundary.; moist when described; observed in push tube. discontinuous - phpvsfiid 499684; discontinuous - phpvsfiid 499684
    Bt1—33 to 81 centimeters (13.0 to 31.9 inches); yellowish brown (10YR 5/6) silty clay loam; 1 percent pale brown (10YR 6/3) fine faint and 10 percent yellowish brown (10YR 5/6) medium faint mottles; moderate medium subangular blocky structure; firm; 0.5 fine roots; 5 percent brown (10YR 5/3), moist, clay films and 30 percent faint brown (10YR 4/3), moist, organic stains on vertical faces of peds; 1 percent fine prominent N 2.5/1 (N 2.5/1), moist, iron-manganese masses throughout; fragments; very strongly acid, pH 4.9, pH meter; clear smooth boundary.; moist when described; observed in push tube. discontinuous - phpvsfiid 499686; patchy - phpvsfiid 499676; discontinuous - phpvsfiid 499686; patchy - phpvsfiid 499676
    Bt2—81 to 96 centimeters (31.9 to 37.8 inches); yellowish brown (10YR 5/6) silty clay loam; 1 percent pale brown (10YR 6/3) fine distinct mottles; moderate medium subangular blocky structure; firm; 0.5 fine roots; 5 percent distinct brown (10YR 5/3), moist, clay films on vertical faces of peds and 7 percent distinct light yellowish brown (2.5Y 6/3), moist, silt coats on vertical faces of peds; 1 percent medium distinct light brownish gray (10YR 6/2), moist, iron depletions throughout and 5 percent fine prominent N 2.5/1 (N 2.5/1), moist, iron-manganese masses throughout; fragments; very strongly acid, pH 4.7, pH meter; gradual smooth boundary.; moist when described; observed in push tube. discontinuous - phpvsfiid 499687; continuous - phpvsfiid 499677; discontinuous - phpvsfiid 499687; continuous - phpvsfiid 499677
    Bt3—96 to 124 centimeters (37.8 to 48.8 inches); yellowish brown (10YR 5/6) silty clay loam; 1 percent pale brown (10YR 6/3) fine distinct mottles; moderate medium subangular blocky structure; firm; 0.1 fine roots; 5 percent distinct brown (10YR 5/3), moist, clay films on vertical faces of peds and 12 percent distinct light yellowish brown (2.5Y 6/3), moist, silt coats on vertical faces of peds; 2 percent fine prominent strong brown (7.5YR 4/6), moist, and brown (7.5YR 4/3), moist, iron-manganese masses throughout and 5 percent fine prominent N 2.5/1 (N 2.5/1), moist, iron-manganese nodules throughout and 5 percent medium distinct light brownish gray (10YR 6/2), moist, iron depletions throughout; fragments; very strongly acid, pH 4.8, pH meter; gradual smooth boundary.; moist when described; observed in push tube. discontinuous - phpvsfiid 499688; continuous - phpvsfiid 499689; discontinuous - phpvsfiid 499688; continuous - phpvsfiid 499689
    Bt4—124 to 203 centimeters (48.8 to 79.9 inches); 55 percent strong brown (7.5YR 4/6) and 45 percent light brownish gray (10YR 6/2) silty clay loam; 1 percent pale brown (10YR 6/3) fine distinct mottles; moderate medium prismatic parts to moderate medium subangular blocky structure; firm; 5 percent distinct light yellowish brown (2.5Y 6/3), moist, silt coats on vertical faces of peds and 5 percent distinct grayish brown (10YR 5/2), moist, clay films on vertical faces of peds; 5 percent fine prominent N 2.5/1 (N 2.5/1), moist, iron-manganese nodules throughout and 10 percent medium prominent strong brown (7.5YR 5/6), moist, iron-manganese masses throughout; fragments; very strongly acid, pH 4.8, pH meter.; moist when described; observed in push tube. continuous - phpvsfiid 499691; discontinuous - phpvsfiid 499690; continuous - phpvsfiid 499691; discontinuous - phpvsfiid 499690