Madison 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 Madison County, Ohio.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Kokomo silty clay loam, 0 to 2 percent slopes | 103K | Very poorly drained | C/D | Very limited | Very limited |
| Crosby-Lewisburg silt loams, 2 to 6 percent slopes | 78K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Crosby-Lewisburg silt loams, 0 to 2 percent slopes | 44K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Lewisburg-Celina silt loams, 2 to 6 percent slopes | 20K | Moderately well drained | C | Somewhat limited | Very limited |
| Miamian silt loam, 6 to 12 percent slopes, eroded | 7K | Well drained | C | Somewhat limited | Very limited |
| Sloan silty clay loam, frequently flooded | 7K | Very poorly drained | B/D | Very limited | Very limited |
| Westland silty clay loam, Southern Ohio Till Plain, 0 to 2 percent slopes | 5K | Poorly drained | B/D | Very limited | Very limited |
| Eldean silt loam, 2 to 6 percent slopes | 4K | Well drained | B | Not limited | Very limited |
| Crosby silt loam, Southern Ohio Till Plain, 0 to 2 percent slopes | 4K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Westland silty clay loam, silty substratum | 4K | Very poorly drained | C/D | Very limited | Very limited |
| Miamian silt loam, 2 to 6 percent slopes | 3K | Well drained | C | Very limited | Very limited |
| Miamian silt loam, 12 to 18 percent slopes, eroded | 3K | Well drained | C | Very limited | Very limited |
| Medway silt loam, occasionally flooded | 3K | Moderately well drained | B/D | Very limited | Very limited |
| Miamian-Eldean silt loams, 2 to 6 percent slopes | 2K | Well drained | C | Not limited | Very limited |
| Odell-Lewisburg complex, 0 to 2 percent slopes | 2K | Somewhat poorly drained | C | Very limited | Very limited |
| Patton silty clay loam, Southern Ohio Till Plain, 0 to 2 percent slopes | 1K | Poorly drained | B/D | Very limited | Very limited |
| Ross silt loam, 0 to 2 percent slopes, occasionally flooded | 987 | Well drained | B | Very limited | Very limited |
| Water | 957 | Not rated | Not rated | ||
| Kendallville silt loam, 2 to 6 percent slopes | 948 | Well drained | C | Not limited | Very limited |
| Miamian silt loam, 18 to 25 percent slopes, eroded | 872 | Well drained | C | Very limited | Very limited |
What This Means
Building & Foundations
About 88% 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 99% 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.