Soil Survey of McHenry County, Illinois Part I - Soil Data Mart

30 Soil Survey of
• soils that contain sandy and gravelly deposits at a
depth of less than 60 inches
• soils that have slopes of less than 2 percent
Dissimilar soils:
• the somewhat poorly drained Millbrook soils in the
lower positions on the landform
• the poorly drained Pella soils in drainageways
• the loamy Fox soils in positions on the landform
similar to those of the Camden soil
Management
For general and detailed information about
managing this map unit, see the following sections in
Part II of this publication:
• “Agronomy” section
• “Forestland” section
• “Wildlife Habitat” section
• “Engineering” section
• “Soil Properties” section
Caprell Series
Drainage class: Well drained
Permeability: Moderate
Landform: Moraines and till plains
Parent material: Thin mantle of silty material and the
underlying loamy till
Slope range: 2 to 20 percent
Taxonomic classification: Fine-loamy, mixed, mesic
Typic Hapludalfs
Typical Pedon for MLRA 95B
Typical pedon of Caprell silt loam, 4 to 6 percent
slopes, eroded, 2,593 feet south and 2,382 feet east
of the northwest corner of sec. 8, T. 46 N., R. 5 E.
Ap—0 to 6 inches; brown (10YR 4/3) silt loam, pale
brown (10YR 6/3) dry; weak medium subangular
blocky structure parting to weak fine granular;
friable; common very fine roots; common distinct
dark brown (10YR 3/3) organic coatings on faces
of peds and in pores; few distinct light gray (10YR
7/2 dry) clay depletions on faces of peds; slightly
acid; abrupt smooth boundary.
E—6 to 10 inches; 90 percent brown (10YR 4/3) and
10 percent dark yellowish brown (10YR 4/4) silt
loam, pale brown (10YR 6/3) dry; weak medium
subangular blocky structure parting to moderate
thin platy; friable; common very fine roots;
common distinct dark brown (10YR 3/3) organic
coatings on faces of peds and in pores; few
distinct light gray (10YR 7/2 dry) clay depletions
on faces of peds and in pores; moderately acid;
abrupt smooth boundary.
Bt1—10 to 16 inches; dark yellowish brown (10YR
4/4) silty clay loam; moderate fine and medium
subangular blocky structure; friable; common very
fine roots; few distinct brown (10YR 4/3) clay films
and dark brown (10YR 3/3) organo-clay films on
faces of peds; few distinct very dark grayish
brown (10YR 3/2) organic coatings in root
channels and in pores; slightly acid; clear wavy
boundary.
2Bt2—16 to 22 inches; brown (7.5YR 4/4) clay loam;
moderate fine and medium subangular blocky
structure; friable; common very fine roots; few
distinct brown (7.5YR 4/3) clay films on faces of
peds; few distinct dark brown (7.5YR 3/2) organoclay
films on faces of peds and in pores; 2 percent
gravel; slightly acid; clear smooth boundary.
2Bt3—22 to 33 inches; brown (7.5YR 4/4) clay loam;
weak medium prismatic structure parting to
moderate medium subangular blocky; friable;
common very fine roots; few distinct brown (7.5YR
4/3) clay films on faces of peds; few distinct dark
brown (7.5YR 3/2) organo-clay films on faces of
peds and in pores; 4 percent gravel; neutral; clear
smooth boundary.
2Bt4—33 to 38 inches; brown (7.5YR 4/4) loam; weak
medium prismatic structure parting to moderate
medium subangular blocky; friable; few very fine
roots; few distinct brown (7.5YR 4/3) clay films on
faces of peds; few distinct dark brown (7.5YR 3/2)
organo-clay films on faces of peds and in pores; 6
percent gravel; slightly effervescent; slightly
alkaline; clear smooth boundary.
2Bt5—38 to 47 inches; 55 percent dark yellowish
brown (10YR 4/4) and 45 percent yellowish brown
(10YR 5/4) loam; weak medium prismatic
structure parting to weak medium and coarse
subangular blocky; friable; few very fine roots; few
distinct brown (10YR 4/3) clay films and very dark
grayish brown (10YR 3/2) organo-clay films on
faces of peds and in pores; 8 percent gravel;
strongly effervescent; slightly alkaline; gradual
smooth boundary.
2C—47 to 60 inches; yellowish brown (10YR 5/4)
loam; massive; friable; few very fine roots; few
distinct very dark grayish brown (10YR 3/2) linings
in root channels and in pores; few fine distinct
strong brown (7.5YR 5/6) masses of iron
accumulation in the matrix; 10 percent gravel;
violently effervescent; moderately alkaline.
MLRA Series Range in Characteristics
Thickness of silty material: Less than 20 inches