IDENTIFIERS
Current Taxon Name (Soil Name):
Millbrook
OSD
Series Extent
User Site ID:
1970IL037001
User Pedon ID:
1970IL037001
Lab Information:
Certified Lab Pedon Description -
no
Lab Source ID -
IL SCL
Lab Pedon # -
70IL037001
NCSS Pedon Lab Data NASIS Record ID -
20694
Print Date:
2/17/2025
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:
42.1372451
Std. Longitude:
-88.6005828
Datum:
WGS84
Township:
42N
Range:
5E
Section:
12
PLSS Details:
40 feet east of 1/4 mile line,150 feet south of center of east-west road
State:
Illinois
County:
IL037—DeKalb
MLRA:
95—Eastern Wisconsin, Northern Illinois, and Upper Michigan Drift Plain
Non-MLRA Soil Survey Area:
IL037—DeKalb County, Illinois
7.5 Minute USGS Quad:
42088-B5—Marengo South, Illinois
PEDON
Describers Name:
KH, GW, BR
Current Taxonomic Class:
Fine-silty, mixed, superactive, mesic Udollic Endoaqualfs
Current Taxon Kind:
series
Pedon Purpose:
full pedon description
Pedon Record Orgin:
PedonPC
Pedon #:
1
Correlated Information:
Soil Name -
Millbrook
PSC -
30 to 80 cm.
Classificaton Date -
7/10/2009
Moisture Class -
aquic
Sampled As Information:
Soil Name -
Millbrook
Classificaton Date -
10/1/1970
Dynamic Soil Properties:
Erosion Class -
1
Pedoderm Loose Cover Indicator -
no
Hydric:
no
SITE
Parent Material:
loess over outwash
Drainage Class:
somewhat poorly
Surface Fragments:
Benchmark Soil?:
no
VEGETATION
SITE OBSERVATION
Observation Date:
10/1/1970 (actual site observation date)
Air Photo ID:
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
Yield Study ID -
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
—
—
253
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Ap—0 to 20 centimeters (0.0 to 7.9 inches); black (10YR 2/1) silt loam; moderate fine granular structure; friable; 6.0 roots; fragments; abrupt smooth boundary. Lab sample # IL22279
A2—20 to 30 centimeters (7.9 to 11.8 inches); brown (10YR 4/3) and dark grayish brown (10YR 4/2) silt loam; weak fine platy, and moderate fine granular structure; friable; 6.0 roots; fragments; clear smooth boundary. Lab sample # IL22280
B21t—30 to 46 centimeters (11.8 to 18.1 inches); brown (10YR 4/3) silty clay loam; 1 percent yellowish brown (10YR 5/6) fine distinct mottles; moderate fine subangular blocky structure; friable; 6.0 roots; dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; fragments; clear smooth boundary. Lab sample # IL22281. patchy - phpvsfiid 464577; patchy - phpvsfiid 464577
B22t—46 to 66 centimeters (18.1 to 26.0 inches); variegated dark grayish brown (10YR 4/2) and brown (10YR 4/3) silty clay loam; 10 percent yellowish brown (10YR 5/6) fine prominent mottles; weak fine prismatic, and moderate fine subangular blocky structure; 6.0 roots; grayish brown (2.5Y 5/2), moist, clay films on all faces of peds and 10 percent very dark brown (10YR 2/2), moist, organoargillans on surfaces along root channels; 1 percent very dark grayish brown (10YR 3/2), moist, iron-manganese concretions; fragments; clear smooth boundary. Lab sample # IL22282. discontinuous - phpvsfiid 464579; discontinuous - phpvsfiid 464579
I-IIB23t—66 to 86 centimeters (26.0 to 33.9 inches); variegated dark grayish brown (10YR 4/2) and yellowish brown (10YR 5/6) and yellowish brown (10YR 5/8) silty clay loam, gravel; weak medium prismatic, and moderate medium subangular blocky structure; 0.6 roots; grayish brown (2.5Y 5/2), moist, clay films on all faces of peds; 1 percent very dark brown (10YR 2/2), moist, iron-manganese concretions; fragments; clear smooth boundary. Lab sample # IL22283. discontinuous - phpvsfiid 464580; discontinuous - phpvsfiid 464580
IIB3—86 to 104 centimeters (33.9 to 40.9 inches); dark grayish brown (10YR 4/2) sandy loam; 1 percent yellowish brown (10YR 5/6) fine distinct mottles; weak coarse subangular blocky structure; 0.6 roots; grayish brown (10YR 5/2), moist, clay films on all faces of peds; fragments; clear smooth boundary. Lab sample # IL22284. discontinuous - phpvsfiid 464581; discontinuous - phpvsfiid 464581
IIC—104 to 142 centimeters (40.9 to 55.9 inches); variegated gray (5Y 6/1) and light brownish gray (2.5Y 6/2) and yellowish brown (10YR 5/6) silt loam, gravel, loam, gravel; massive; 25 percent very dark brown (10YR 2/2), moist, iron-manganese concretions; fragments; slight effervescence; slightly alkaline, pH 7.6. Lab sample # IL22286, IL22287, IL22285, IL22288. Horizon split for sampling: IL22285 104 to 114 cm, IL22286 114 to 127 cm, IL22287 127 to 137 cm, IL22288 137 to 142 cm.