IDENTIFIERS
Current Taxon Name (Soil Name):
COULTERVILLE
OSD
Series Extent
User Site ID:
S1990IL189038
User Pedon ID:
S1990IL189038
Vegetation Plot ID:
S1990IL189038
Lab Information:
Certified Lab Pedon Description -
no
Lab Source ID -
SSL
Lab Pedon # -
91P0294
NCSS Pedon Lab Data NASIS Record ID -
63341
Print Date:
12/4/2024
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:
38.4680557
Std. Longitude:
-89.3249969
Datum:
WGS84
Township:
1S
Range:
2W
Section:
4
PLSS Details:
680 feet E and 1700 feet N of the SW corner
State:
Illinois
County:
IL189—Washington
MLRA:
113—Central Claypan Areas
Non-MLRA Soil Survey Area:
IL189—Washington County, Illinois
PEDON
Describers Name:
WMM, MRG, & KDB
Current Taxonomic Class:
Fine, montmorillonitic, mesic Udollic Ochraqualfs
Pedon Record Orgin:
Converted from PDP 3.x
Pedon #:
38
Correlated Information:
Soil Name -
COULTERVILLE
PSC -
30 to 80 cm.
Classificaton Date -
12/9/2004
Moisture Class -
aquic
Sampled As Information:
Soil Name -
Darmstadt
Taxonomic Class -
Fine-silty, mixed, mesic Albic Natraqualf
Taxon Kind -
series
Classificaton Date -
9/28/1990
Moisture Class -
aquic
Dynamic Soil Properties:
Erosion Class -
1
Pedoderm Loose Cover Indicator -
no
Hydric:
no
SITE
Parent Material:
loess over till
Landform:
upland slope
Drainage Class:
somewhat poorly
Surface Fragments:
Benchmark Soil?:
no
VEGETATION
SITE OBSERVATION
Observation Date:
9/28/1990 (actual site observation date)
Surface Cover Properties:
Pedoderm Loose Cover Indicator -
no
Drained? -
no
Bedded Soil? -
no
Forest Plantation? -
no
Vegetation Plot Plants
Plant Symbol
Scientific Name
National Vernacular Name
Plant Type Group
Canopy Cover %
Vegetation Stata Level
MESA
Medicago sativa
alfalfa
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—
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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
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—
—
139
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Ap—0 to 20 centimeters (0.0 to 7.9 inches); dark grayish brown (10YR 4/2) silt loam; 17 percent clay; moderate medium granular structure; friable; 3.0 very fine roots and 0.5 coarse roots; 10 percent iron-manganese nodules; fragments; neutral, pH 6.8; abrupt smooth boundary. Lab sample # 91P01781; moist when described;
E—20 to 30 centimeters (7.9 to 11.8 inches); grayish brown (10YR 5/2) silt loam; 17 percent clay; moderate medium platy structure; friable; 3.0 very fine roots and 0.5 coarse roots; 10 percent iron-manganese nodules; fragments; neutral, pH 7.0; abrupt smooth boundary. Lab sample # 91P01782; moist when described;
Bt1—30 to 43 centimeters (11.8 to 16.9 inches); brown (10YR 4/3) silty clay loam; 34 percent clay; 1 percent yellowish brown (10YR 5/6) medium distinct mottles; moderate medium angular blocky structure; firm; 3.0 very fine roots; 10 percent distinct light gray (10YR 7/2), moist, sand coats on all faces of peds and 75 percent distinct dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; 10 percent iron-manganese nodules; fragments; moderately acid, pH 6.0; clear smooth boundary. Lab sample # 91P01783; moist when described;
Bt2—43 to 58 centimeters (16.9 to 22.8 inches); brown (10YR 5/3) silty clay loam; 32 percent clay; 3 percent yellowish brown (10YR 5/6) medium distinct mottles; moderate medium subangular blocky, and moderate medium prismatic structure; firm; 3.0 very fine roots; 10 percent distinct light gray (10YR 7/2), moist, sand coats on all faces of peds and 75 percent distinct dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; 10 percent iron-manganese nodules; fragments; neutral, pH 7.2; clear smooth boundary. Lab sample # 91P01784; moist when described;
Btg1—58 to 79 centimeters (22.8 to 31.1 inches); grayish brown (2.5Y 5/2) silty clay loam; 28 percent clay; 3 percent yellowish brown (10YR 5/8) medium prominent mottles; moderate medium prismatic structure; friable; 3.0 very fine roots; 30 percent distinct grayish brown (10YR 5/2), moist, clay films on all faces of peds and 30 percent distinct light gray (10YR 7/2), moist, sand coats on all faces of peds; 10 percent iron-manganese nodules; fragments; moderately alkaline, pH 8.2; gradual smooth boundary. Lab sample # 91P01785; moist when described;
Btg2—79 to 102 centimeters (31.1 to 40.2 inches); grayish brown (2.5Y 5/2) silty clay loam; 28 percent clay; 1 percent strong brown (7.5YR 4/6) medium distinct and 3 percent yellowish brown (10YR 5/8) medium prominent mottles; moderate medium prismatic structure; friable; 0.5 very fine roots; 10 percent distinct light gray (10YR 7/2), moist, sand coats on all faces of peds and 30 percent distinct dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; 10 percent iron-manganese nodules; fragments; moderately alkaline, pH 8.4; clear smooth boundary. Lab sample # 91P01786; moist when described;
2Btg3—102 to 127 centimeters (40.2 to 50.0 inches); light brownish gray (2.5Y 6/2) silt loam; 25 percent clay; 1 percent strong brown (7.5YR 4/6) medium prominent and 3 percent yellowish brown (10YR 5/8) medium prominent mottles; weak medium prismatic structure; friable; 0.5 very fine roots; 10 percent distinct grayish brown (10YR 5/2), moist, clay films on all faces of peds; 10 percent iron-manganese nodules; fragments; moderately alkaline, pH 8.0; gradual smooth boundary. Lab sample # 91P01787; moist when described;
2Btg4—127 to 152 centimeters (50.0 to 59.8 inches); light brownish gray (2.5Y 6/2) silt loam; 22 percent clay; 1 percent dark yellowish brown (10YR 4/6) medium prominent and 3 percent yellowish brown (10YR 5/8) medium prominent mottles; weak medium prismatic structure; friable; 0.5 very fine roots; 10 percent distinct grayish brown (10YR 5/2), moist, clay films on all faces of peds; 10 percent iron-manganese nodules; fragments; slightly alkaline, pH 7.8. Lab sample # 91P01788; moist when described;