IDENTIFIERS

  • Current Taxon Name (Soil Name): Darmstadt
  • OSD
  • Series Extent
  • User Site ID: 90IL189080
  • User Pedon ID: 90IL189080
  • User Site Association ID: SAS_1 - Clinton & Washington Cty(1990)NSSL PROJECT CP91IL04
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 91P0164
  • NCSS Pedon Lab Data NASIS Record ID - 63211
  • Print Date: 4/29/2025

    • 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: 38.3727778
  • Std. Longitude: -89.4216667
  • Datum: WGS84
  • Township: 2S
  • Range: 3W
  • Section: 10
  • PLSS Details: 1440 feet E and 1130 feet S of the NW corner
  • Location Description: 11/13/2008-DRW-This pedon was copied from the NSSL pedon description (s90IL189080) taken in 1990. It is part of the SSL - Project CP91IL041 - CLINTON AND WASHINGTON COUNTY PROJECT. This pedon description was linked to Site Association "SAS - Clinton & Washington Cty (SAS) NSSL PROJECT CP91IL041". To load all the pedons in the site association use the following MLRA 11 Query: "Pedons by Site Association by Site Assoc. ID (waw)". When the prompt comes up just select: Site/Pedon/Site Association Site. Click on apply and in the Nasis Query Parameter type: *SAS*1* , click on apply and all of the pedons in this project will be loaded. This pedon was the 1st of 4 pit descriptions taken on a NE/SW oriented landscape transect on a sodium affected landscape. Soil samples were taken and sent to the NSSL in Lincoln, NE. This pedon was georeferenced using the distances measured from the NW section corner of section 10. These distances were plotted on the Nashville NE Quarter Quad using ArcMap. The plotted point was noted in UTM's using NAD 83, Zone 16. The UTM's were then converted to Latitude/Longitude. (The original Latitude/Longitude do not appear to be as accurate. According to Matt McCauley, who was involved with the project, the Latitude/Longitude were not noted at the time of the description, but were added by someone at a later date.)
  • Map Unit: 882A—Oconee-Darmstadt-Coulterville silt loams, 0 to 2 percent slopes
  • Country: US—United States
  • State: Illinois
  • County: IL189—Washington
  • MLRA: 114—Southern Illinois and Indiana Thin Loess and Till Plain
  • Non-MLRA Soil Survey Area: IL189—Washington County, Illinois
  • 7.5 Minute USGS Quad: 38089-C4—Nashville, Illinois

    • PEDON

  • Current Taxonomic Class: Fine-silty, mixed, superactive, mesic Aquic Natrudalfs
  • Current Taxon Kind: series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 80
  • Correlated Information:
  • Soil Name - Darmstadt
  • Classificaton Date - 1/6/2009
  • Moisture Class - aquic
  • Sampled As Information:
  • Soil Name - Darmstadt
  • Classificaton Date - 7/1/1990
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Slope Shape Down: linear
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/1/1990 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion
    • 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

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    139.5

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    Ap—0 to 20 centimeters (0.0 to 7.9 inches); brown (10YR 5/3) crushed silt loam; 11 percent sand; 84 percent silt; 5 percent clay; moderate medium granular structure; friable; 0.5 medium roots and 2.5 fine roots; fragments; slightly acid, pH 6.4, pH meter; abrupt smooth boundary. Lab sample # 91P00941. ORIGINAL NOTES: few medium roots; common fine roots; Field pH: 7.2 using Hellige-Truog indicator.
    Btn1—20 to 28 centimeters (7.9 to 11.0 inches); dark yellowish brown (10YR 4/4) silty clay; 4 percent sand; 82 percent silt; 15 percent clay; strong fine prismatic, and strong fine angular blocky structure; firm; 0.5 medium roots and 2.5 fine roots; 15 percent faint brown (10YR 4/3), moist, clay films on faces of peds; 1 percent distinct grayish brown (10YR 5/2), moist, iron depletions; fragments; neutral, pH 6.7, pH meter; abrupt smooth boundary. Lab sample # 91P00942. Field pH: 7.2 using Hellige-Truog indicator.; ORIGINAL NOTES: few clay films surface features on faces of peds; few medium roots; common fine roots; few fine distinct 10YR52 mottles)
    Btn2—28 to 38 centimeters (11.0 to 15.0 inches); light yellowish brown (10YR 6/4) silty clay loam; 3 percent sand; 71 percent silt; 26 percent clay; moderate medium prismatic, and moderate medium angular blocky structure; firm; 0.5 fine roots; 37 percent distinct grayish brown (10YR 5/2), moist, clay films on faces of peds; 1 percent fine prominent light brownish gray (2.5Y 6/2), moist, masses of reduced iron and 1 percent medium prominent yellowish brown (10YR 5/8), moist, masses of oxidized iron; fragments; slightly alkaline, pH 7.4, pH meter; clear smooth boundary. Lab sample # 91P00943. ORIGINAL NOTES: common clay films surface features on faces of peds; few fine roots; few fine prominent 2.5Y62 mottles; few medium prominent 5YR58 mottles; Field pH: 7.4 using Hellige-Truog indicator.
    Btng1—38 to 53 centimeters (15.0 to 20.9 inches); grayish brown (10YR 5/2) silty clay loam; 3 percent sand; 67 percent silt; 30 percent clay; weak medium prismatic, and moderate medium subangular blocky structure; firm; 0.5 fine roots; 15 percent distinct brown (10YR 4/3), moist, clay films on faces of peds and 15 percent distinct brown (10YR 4/3), moist, clay films on faces of peds and 37 percent distinct white (10YR 8/1), moist, skeletans over cutans on faces of peds; 1 percent fine prominent strong brown (7.5YR 5/6), moist, masses of oxidized iron; fragments; moderately alkaline, pH 8.0, pH meter; gradual smooth boundary. Lab sample # 91P00944. Field pH: 8.0 using Hellige-Truog indicator.; ORIGINAL NOTES: few clay films surface features on faces of peds; common skeletans over cutans surface features on faces of peds; few clay films surface features on faces of peds; few fine roots; few fine prominent 7.5YR56 mottles
    Btng2—53 to 71 centimeters (20.9 to 28.0 inches); light brownish gray (2.5Y 6/2) silty clay loam; 4 percent sand; 68 percent silt; 28 percent clay; weak coarse prismatic, and weak medium subangular blocky, and weak coarse subangular blocky structure; firm; 0.5 fine roots; 15 percent distinct white (10YR 8/1), moist, skeletans over cutans on faces of peds and 37 percent distinct grayish brown (2.5Y 5/2), moist, clay films on faces of peds; 1 percent fine prominent strong brown (7.5YR 5/6), moist, masses of oxidized iron; fragments; strongly alkaline, pH 8.6, pH meter; gradual wavy boundary. Lab sample # 91P00945. ORIGINAL NOTES: few skeletans over cutans surface features on faces of peds; common clay films surface features on faces of peds; few fine roots; few fine prominent 7.5YR56 mottles; Field pH: 8.2 using Hellige-Truog indicator.
    Btng3—71 to 109 centimeters (28.0 to 42.9 inches); light brownish gray (2.5Y 6/2) silt loam; 6 percent sand; 76 percent silt; 18 percent clay; weak coarse prismatic structure; friable; 0.5 very fine roots; 15 percent distinct grayish brown (2.5Y 5/2), moist, clay films on faces of peds; medium prominent dark yellowish brown (10YR 4/6), moist, masses of oxidized iron and 1 percent coarse prominent strong brown (7.5YR 5/6), moist, masses of oxidized iron and 11 percent fine prominent dark yellowish brown (10YR 4/6), moist, masses of oxidized iron; fragments; strongly alkaline, pH 9.0, pH meter; gradual wavy boundary. Lab sample # 91P00946. Field pH 8.2 using Hellige-Truog indicator.; ORIGINAL NOTES: few clay films surface features on faces of peds; few very fine roots; few coarse prominent 7.5YR56 mottles; common fine and medium prominent 10YR46 mottles
    Btng4—109 to 145 centimeters (42.9 to 57.1 inches); light brownish gray (2.5Y 6/2) silt loam; 4 percent sand; 84 percent silt; 13 percent clay; weak very coarse prismatic structure; friable; medium prominent strong brown (7.5YR 5/8), moist, masses of oxidized iron and 1 percent fine faint grayish brown (2.5Y 5/2), moist, masses of reduced iron and 11 percent fine prominent strong brown (7.5YR 5/8), moist, masses of oxidized iron; fragments; strongly alkaline, pH 8.8, pH meter; clear wavy boundary. Lab sample # 91P00947. ORIGINAL NOTES: few distinct 2.5Y52 mottles; common fine and medium 7.5YR58 mottles; Field pH: 8.0 using Hellige-Truog indicator.
    2BCng—145 to 165 centimeters (57.1 to 65.0 inches); light brownish gray (10YR 6/2) silt loam; 22 percent sand; 62 percent silt; 16 percent clay; weak very coarse prismatic structure; friable; 11 percent coarse prominent strong brown (7.5YR 5/6), moist, masses of oxidized iron; fragments; moderately alkaline, pH 8.1, pH meter; gradual wavy boundary. Lab sample # 91P00948. Field pH: 7.6 using Hellige-Truog indicator.; ORIGINAL NOTES: common coarse 7.5YR56 mottles.
    2Cng—165 to 180 centimeters (65.0 to 70.9 inches); pinkish gray (7.5YR 6/2) loam; 23 percent sand; 62 percent silt; 16 percent clay; weak very coarse prismatic structure; friable; 30 percent medium yellowish brown (10YR 5/6), moist, masses of oxidized iron; fragments; moderately alkaline, pH 7.9, pH meter. Lab sample # 91P00949. ORIGINAL NOTES: many medium distinct 10YR56 mottles; Field pH: 7.6 using Hellige-Truog indicator.