Darke County, Ohio
The dominant drainage class is Somewhat poorly drained and the dominant hydrologic group is C/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 Darke County, Ohio.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Brookston silty clay loam, fine texture, 0 to 2 percent slopes | 56K | Poorly drained | C/D | Very limited | Very limited |
| Crosby silt loam, Southern Ohio Till Plain, 0 to 2 percent slopes | 55K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Crosby silt loam, Southern Ohio Till Plain, 2 to 6 percent slopes | 43K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Miamian silt loam, 2 to 6 percent slopes | 40K | Well drained | C | Very limited | Very limited |
| Pewamo silty clay loam, 0 to 1 percent slopes | 31K | Very poorly drained | C/D | Very limited | Very limited |
| Blount silt loam, end moraine, 2 to 4 percent slopes | 28K | Somewhat poorly drained | D | Very limited | Very limited |
| Blount silt loam, ground moraine, 2 to 4 percent slopes | 28K | Somewhat poorly drained | D | Very limited | Very limited |
| Celina silt loam, 2 to 6 percent slopes | 16K | Moderately well drained | C/D | Very limited | Very limited |
| Blount silt loam, ground moraine, 0 to 2 percent slopes | 10K | Somewhat poorly drained | D | Very limited | Very limited |
| Miamian silt loam, 6 to 12 percent slopes, eroded | 9K | Well drained | C | Somewhat limited | Very limited |
| Patton silty clay loam, Southern Ohio Till Plain, 0 to 2 percent slopes | 6K | Poorly drained | B/D | Very limited | Very limited |
| Glynwood silt loam, end moraine, 2 to 6 percent slopes | 5K | Moderately well drained | D | Very limited | Very limited |
| Blount silt loam, end moraine, 0 to 2 percent slopes | 5K | Somewhat poorly drained | D | Very limited | Very limited |
| Eldean-Miamian complex, 6 to 12 percent slopes, eroded | 4K | Well drained | B | Somewhat limited | Very limited |
| Eldean loam, 2 to 6 percent slopes | 4K | Well drained | B | Not limited | Very limited |
| Westland silty clay loam, Southern Ohio Till Plain, 0 to 2 percent slopes | 3K | Poorly drained | B/D | Very limited | Very limited |
| Glynwood silt loam, end moraine, 2 to 6 percent slopes, eroded | 3K | Moderately well drained | D | Very limited | Very limited |
| Glynwood silt loam, ground moraine, 2 to 6 percent slopes | 3K | Moderately well drained | D | Very limited | Very limited |
| Eel silt loam, occasionally flooded | 3K | Moderately well drained | C | Very limited | Very limited |
| Glynwood clay loam, 6 to 12 percent slopes, eroded | 3K | Moderately well drained | D | Very limited | Very limited |
What This Means
Building & Foundations
About 95% of soils are rated "very limited" for dwellings with basements. Specific challenges include poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 100% 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.