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

54 Soil Survey of
Texture—clay loam, loam, or sandy clay loam
Content of gravel—2 to 10 percent
2C horizon:
Hue—7.5YR or 10YR
Value—4 to 6
Chroma—3 to 6
Texture—loam or sandy loam
Content of gravel—3 to 15 percent
625A—Geryune silt loam, 0 to 2 percent
slopes
Setting
Landform: Moraines and till plains
Position on the landform: Summits
Slope range: 0 to 2 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
Geryune and similar soils: 90 percent
Dissimilar soils: 10 percent
Similar soils:
• soils that have slopes of more than 2 percent
• soils that have no subsurface layer
• soils that have a seasonal high water table at a
depth of less than 2 feet or more than 3.5 feet
• soils that contain more sand in the upper one-half of
the profile
Dissimilar soils:
• the poorly drained Pella soils in drainageways
Management
For general and detailed information about
managing this map unit, see the following sections in
Part II of this publication:
• “Agronomy” section
• “Wildlife Habitat” section
• “Engineering” section
• “Soil Properties” section
625B—Geryune silt loam, 2 to 5 percent
slopes
Setting
Landform: Moraines and till plains
Position on the landform: Summits, shoulders, and
backslopes
Slope range: 2 to 5 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
Geryune and similar soils: 90 percent
Dissimilar soils: 10 percent
Similar soils:
• soils that have slopes of less than 2 percent
• soils that have no subsurface layer
• soils that have a seasonal high water table at a
depth of less than 2 feet or more than 3.5 feet
• soils that contain more sand in the upper one-half of
the subsoil
Dissimilar soils:
• the poorly drained Pella soils in drainageways
Management
For general and detailed information about
managing this map unit, see the following sections in
Part II of this publication:
• “Agronomy” section
• “Wildlife Habitat” section
• “Engineering” section
• “Soil Properties” section
Griswold Series
Drainage class: Well drained
Permeability: Moderate
Landform: Moraines and till plains
Parent material: Loamy till
Slope range: 2 to 12 percent
Taxonomic classification: Fine-loamy, mixed, mesic
Typic Argiudolls
Taxadjunct features: Griswold loam, 6 to 12 percent
slopes, eroded, has a mollic epipedon that is less
than 10 inches thick or that makes up less than
one-third of the solum thickness. This soil is
classified as a fine-loamy, mixed, mesic Mollic
Hapludalf.
Typical Pedon for MLRA 95B
Typical pedon of Griswold loam, 4 to 6 percent slopes,
eroded, 1,000 feet north and 1,850 feet west of the
southeast corner of sec. 33, T. 46 N., R. 8 E.
Ap—0 to 10 inches; 95 percent very dark grayish