Map Unit Composition
Map units consist of 1 or more soil types, commonly referred to as "components".
Component Name Geomorphic Position Area Fraction Component Type Horizon Data
Soil Type 1 Herrick ground moraines / Summit 45% Major Soil Type YES
Soil Type 2 Biddle ground moraines / Summit 30% Major Soil Type YES
Soil Type 3 Piasa ground moraines / Summit 25% Major Soil Type YES

Note: links to horizon data marked with an * are approximate.


Map Unit Data What is a Map Unit?
Cartographic information about this map unit.
Map Unit Name: Herrick-Biddle-Piasa silt loams, 0 to 2 percent slopes
Map Unit Type: Complex
Map Unit Symbol: 894A
Map Unit Area: 49518 acres total in survey area
Raw Map Unit Data
Raw Component Data (All Components)

Map Unit Aggregated Data
Generalized soils information within this map unit.
Farmland Class: Farmland of statewide importance
Available Water Storage (0-100cm): 16.59 cm
Max Flood Freq: None
Drainage Class (Dominant Condition): Somewhat poorly drained
Drainage Class (Wettest Component): Poorly drained
Hydric Conditions: 25
[Annual] Min. Water Table Depth: 15 cm
[April-June] Min. Water Table Depth: 15 cm
Min Bedrock Depth: n/a
Raw Aggregated Map Unit Data

Associated Point Data
Links to any NSSL point data within this map unit.
1. Cowden (S1960IL135003) [Lab Data] | [Pedon Description]
2. Piasa (59IL-135-001) [Lab Data] | [Pedon Description]
3. Herrick (59IL-135-002) [Lab Data] | [Pedon Description]
4. Cowden (60IL-135-003) [Lab Data] | [Pedon Description]
5. Cowden (60IL-135-004) [Lab Data] | [Pedon Description]
6. Cowden (1960IL135005) [Lab Data] | [Pedon Description]
7. Piasa (1960IL135006) [Lab Data] | [Pedon Description]
8. Herrick (1960IL135007) [Lab Data] | [Pedon Description]
9. Piasa (1961IL135004) [Lab Data] | [Pedon Description]