Henry County, Illinois
The dominant drainage class is Well drained and the dominant hydrologic group is B (moderate infiltration). This report summarizes the major soil map units across the survey area to help you understand what to expect when buying, building, or gardening in Henry County, Illinois.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Osco silt loam, 2 to 5 percent slopes | 42K | Well drained | B | Somewhat limited | Somewhat limited |
| Ipava silt loam, 0 to 2 percent slopes | 30K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Osco silt loam, 5 to 10 percent slopes, eroded | 25K | Well drained | B | Somewhat limited | Somewhat limited |
| Greenbush silt loam, 5 to 10 percent slopes, eroded | 23K | Well drained | B | Somewhat limited | Somewhat limited |
| Muscatune silt loam, 0 to 2 percent slopes | 20K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Radford silt loam, 0 to 2 percent slopes, frequently flooded | 19K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Sylvan silty clay loam, 10 to 18 percent slopes, severely eroded | 17K | Well drained | B | Somewhat limited | Somewhat limited |
| Greenbush silt loam, 2 to 5 percent slopes | 16K | Well drained | B | Somewhat limited | Somewhat limited |
| Elburn silt loam, 0 to 2 percent slopes | 15K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Sawmill silt loam, 0 to 2 percent slopes, frequently flooded, overwash | 14K | Poorly drained | B/D | Very limited | Very limited |
| Drummer silty clay loam, 0 to 2 percent slopes | 12K | Poorly drained | B/D | Very limited | Very limited |
| Fayette silt loam, glaciated, 5 to 10 percent slopes, eroded | 12K | Well drained | B | Somewhat limited | Somewhat limited |
| Plano silt loam, 2 to 5 percent slopes | 8K | Well drained | B | Somewhat limited | Very limited |
| Sawmill silty clay loam, 0 to 2 percent slopes, frequently flooded | 8K | Poorly drained | B/D | Very limited | Very limited |
| Harpster silty clay loam, 0 to 2 percent slopes | 7K | Poorly drained | B/D | Very limited | Very limited |
| Sylvan silt loam, 10 to 18 percent slopes, eroded | 7K | Well drained | B | Somewhat limited | Somewhat limited |
| Orion silt loam, 0 to 2 percent slopes, frequently flooded | 6K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Buckhart silt loam, 0 to 2 percent slopes | 6K | Moderately well drained | C | Somewhat limited | Very limited |
| Hickory clay loam, cool mesic, 10 to 18 percent slopes, severely eroded | 6K | Well drained | B | Somewhat limited | Somewhat limited |
| Ambraw loam, 0 to 2 percent slopes, occasionally flooded | 6K | Poorly drained | C/D | Very limited | Very limited |
What This Means
Building & Foundations
About 46% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
Septic Systems
About 50% of soils have significant septic limitations, while others are more suitable. A perc test is essential — conditions vary across the area.
Gardening & Agriculture
Drainage is generally favorable for gardening. Adding compost and mulch will improve fertility and water retention. Test your soil's pH before planting — most vegetables prefer 6.0-7.0.