Sullivan County, Indiana
The dominant drainage class is Somewhat poorly drained and the dominant hydrologic group is B/D (varies with drainage). 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 Sullivan County, Indiana.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Reesville silt loam, 0 to 2 percent slopes | 40K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Strip mines | 32K | Well drained | Very limited | Very limited | |
| Iva silt loam, 0 to 2 percent slopes | 14K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Stendal silt loam | 12K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Iona silt loam, 2 to 6 percent slopes, eroded | 11K | Moderately well drained | C | Somewhat limited | Very limited |
| Ava silt loam, 2 to 6 percent slopes, eroded | 10K | Moderately well drained | C | Very limited | Very limited |
| Wakeland silt loam, 0 to 2 percent slopes, frequently flooded | 9K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Water | 9K | Not rated | Not rated | ||
| Cincinnati silt loam, Wabash Lowland, 6 to 12 percent slopes, severely eroded | 9K | Well drained | D | Very limited | Very limited |
| Reesville silt loam, 2 to 5 percent slopes, eroded | 8K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Genesee silt loam | 7K | Well drained | B | Very limited | Very limited |
| Ragsdale silt loam | 7K | Poorly drained | B/D | Very limited | Very limited |
| Ayrshire fine sandy loam, 0 to 2 percent slopes | 5K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Alford silt loam, 5 to 10 percent slopes, severely eroded | 5K | Well drained | B | Not limited | Somewhat limited |
| Hickory silt loam, 18 to 35 percent slopes, severely eroded | 5K | Well drained | B | Very limited | Very limited |
| Eel silt loam | 5K | Moderately well drained | C | Very limited | Very limited |
| Cincinnati silt loam, 12 to 18 percent slopes, severely eroded | 5K | Well drained | D | Very limited | Very limited |
| Princeton fine sandy loam, 2 to 6 percent slopes, eroded | 4K | Well drained | B | Not limited | Very limited |
| Cuba silt loam | 4K | Well drained | B | Very limited | Very limited |
| Lyles loam | 4K | Poorly drained | B/D | Very limited | Very limited |
What This Means
Building & Foundations
About 85% of soils are rated "very limited" for dwellings with basements. Specific challenges include steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 93% of soils are rated "very limited" for septic absorption fields. Poorly drained soils can't absorb septic effluent effectively. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.
Gardening & Agriculture
Many soils hold water for extended periods. Raised beds are highly recommended to improve drainage for vegetables. Well-adapted native plants and water-loving species will do best in natural conditions.