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

122 Soil Survey of
Composition
Rush and similar soils: 85 percent
Dissimilar soils: 15 percent
Similar soils:
• soils that have a seasonal high water table at a
depth of less than 6 feet
• soils that have a darker subsurface layer
• soils that contain sandy and gravelly deposits at a
depth of less than 40 inches or more than 60 inches
• soils that contain more sand in the upper and
middle parts of the subsoil
Dissimilar soils:
• the poorly drained Dunham soils in depressions and
drainageways
• the somewhat poorly drained Grundelein and
Millstream soils in the lower positions on the landform
• the loamy Fox soils in the higher positions on the
landform
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
791C2—Rush silt loam, 4 to 6 percent
slopes, eroded
Setting
Landform: Outwash plains, stream terraces, and
kames
Position on the landform: Backslopes and shoulders
Slope range: 4 to 6 percent
A typical soil series description with range in
characteristics is included, in alphabetical order, in this
section. Additional information specific to this map
unit, such as horizon depth and textures, is available
in the “Soil Properties” section in Part II of this
publication.
Composition
Rush and similar soils: 85 percent
Dissimilar soils: 15 percent
Similar soils:
• soils that have a darker subsurface layer
• soils that contain sandy and gravelly deposits at a
depth of less than 40 inches or more than 60 inches
• soils that contain more sand in the upper and
middle parts of the subsoil
• soils that have slopes of less than 4 percent or
more than 6 percent
Dissimilar soils:
• the poorly drained Dunham soils in drainageways
and depressions
• the somewhat poorly drained Grundelein and
Millstream soils in the lower positions on the landform
• the loamy Fox soils in positions on the landform
similar to those of the Rush 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
Selmass Series
Drainage class: Poorly drained
Permeability: Moderate in the upper part and rapid in
the lower part
Landform: Outwash plains and stream terraces
Parent material: Loamy outwash
Slope range: 0 to 2 percent
Taxonomic classification: Fine-loamy, mixed, mesic
Typic Endoaquolls
Typical Pedon for MLRA 95B
Typical pedon of Selmass loam, 0 to 2 percent slopes,
50 feet north and 600 feet east of the southwest
corner of sec. 23, T. 44 N., R. 6 E.
Ap—0 to 4 inches; black (N 2.5/0) loam, dark gray
(10YR 4/1) dry; weak medium subangular blocky
structure parting to weak medium granular; friable;
common very fine roots; neutral; abrupt smooth
boundary.
A—4 to 11 inches; black (10YR 2/1) loam, dark gray
(10YR 4/1) dry; weak fine and medium subangular
blocky structure; friable; common very fine roots;
common distinct black (N 2.5/0) organic coatings
on faces of peds and in pores; neutral; clear
smooth boundary.
AB—11 to 15 inches; 65 percent black (10YR 2/1) and