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

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

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

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50 <strong>Soil</strong> <strong>Survey</strong> <strong>of</strong><br />

Composition<br />

Elliott and similar soils: 85 percent<br />

Dissimilar soils: 15 percent<br />

Similar soils:<br />

• soils that have a seasonal high water table at a<br />

depth <strong>of</strong> more than 2.5 feet<br />

• soils that have no subsurface layers<br />

• soils that contain more sand in the upper part <strong>of</strong> the<br />

pr<strong>of</strong>ile<br />

Dissimilar soils:<br />

• the poorly drained Ashkum and very poorly drained<br />

Peotone soils in drainageways and depressions<br />

Management<br />

For general and detailed information about<br />

managing this map unit, see the following sections in<br />

<strong>Part</strong> II <strong>of</strong> this publication:<br />

• “Agronomy” section<br />

• “Wildlife Habitat” section<br />

• “Engineering” section<br />

• “<strong>Soil</strong> Properties” section<br />

146B—Elliott silt loam, 2 to 4 percent<br />

slopes<br />

Setting<br />

Landform: Moraines and till plains<br />

Position on the landform: Summits, backslopes, and<br />

footslopes<br />

Slope range: 2 to 4 percent<br />

A typical soil series description with range in<br />

characteristics is included, in alphabetical order, in this<br />

section. Additional information specific to this map<br />

unit, such as horizon depth and textures, is available<br />

in the “<strong>Soil</strong> Properties” section in <strong>Part</strong> II <strong>of</strong> this<br />

publication.<br />

Composition<br />

Elliott and similar soils: 85 percent<br />

Dissimilar soils: 15 percent<br />

Similar soils:<br />

• soils that have a seasonal high water table at a<br />

depth <strong>of</strong> more than 2.5 feet<br />

• soils that contain more sand in the upper part <strong>of</strong> the<br />

pr<strong>of</strong>ile<br />

• soils that have no subsurface layers<br />

• soils that are moderately eroded<br />

Dissimilar soils:<br />

• the poorly drained Ashkum and very poorly drained<br />

Peotone soils in drainageways and depressions<br />

Management<br />

For general and detailed information about<br />

managing this map unit, see the following sections in<br />

<strong>Part</strong> II <strong>of</strong> this publication:<br />

• “Agronomy” section<br />

• “Wildlife Habitat” section<br />

• “Engineering” section<br />

• “<strong>Soil</strong> Properties” section<br />

Fox Series<br />

Drainage class: Well drained<br />

Permeability: Moderate in the upper part and very<br />

rapid in the lower part<br />

Landform: Stream terraces, kames, outwash plains,<br />

and moraines<br />

Parent material: Loamy drift over sandy and gravelly<br />

deposits<br />

Slope range: 0 to 12 percent<br />

Taxonomic classification: Fine-loamy over sandy or<br />

sandy-skeletal, mixed, mesic Typic Hapludalfs<br />

Typical Pedon for MLRA 95B<br />

Typical pedon <strong>of</strong> Fox silt loam, 0 to 2 percent slopes,<br />

1,500 feet south and 1,600 feet east <strong>of</strong> the northwest<br />

corner <strong>of</strong> sec. 32, T. 7 N., R. 13 E.<br />

Ap—0 to 10 inches; dark grayish brown (10YR 4/2) silt<br />

loam, light brownish gray (10YR 6/2) dry; weak<br />

very fine subangular blocky structure; very friable;<br />

slightly acid; abrupt smooth boundary.<br />

Bt1—10 to 15 inches; dark yellowish brown (10YR<br />

4/4) silt loam; weak very fine subangular blocky<br />

structure; friable; few faint dark yellowish brown<br />

(10YR 4/4) clay films on faces <strong>of</strong> peds; slightly<br />

acid; clear wavy boundary.<br />

Bt2—15 to 21 inches; dark yellowish brown (10YR<br />

4/4) silty clay loam; moderate fine subangular<br />

blocky structure; firm; few faint dark brown (10YR<br />

3/3) clay films on faces <strong>of</strong> peds; moderately acid;<br />

clear wavy boundary.<br />

2Bt3—21 to 29 inches; brown (7.5YR 4/4) clay loam;<br />

moderate medium subangular blocky structure;<br />

firm; common prominent very dark grayish brown<br />

(10YR 3/2) clay films on faces <strong>of</strong> peds; slightly<br />

acid; clear wavy boundary.<br />

2Bt4—29 to 33 inches; brown (7.5YR 4/4) sandy clay<br />

loam; weak medium subangular blocky structure;<br />

firm; common distinct dark brown (7.5YR 3/2) clay<br />

films on faces <strong>of</strong> peds; about 5 percent gravel;<br />

slightly alkaline; clear wavy boundary.<br />

3C1—33 to 45 inches; yellowish brown (10YR 5/4),<br />

stratified gravelly sand and cobbly sand; single

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