Miami County, Indiana
The dominant drainage class is Somewhat poorly drained and the dominant hydrologic group is D (very slow infiltration, high runoff). 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 Miami County, Indiana.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Blount silt loam, ground moraine, 0 to 2 percent slopes | 45K | Somewhat poorly drained | D | Very limited | Very limited |
| Pewamo silty clay loam, 0 to 1 percent slopes | 33K | Very poorly drained | C/D | Very limited | Very limited |
| Glynwood silt loam, ground moraine, 2 to 6 percent slopes | 18K | Moderately well drained | D | Very limited | Very limited |
| Shoals silt loam, 0 to 2 percent slopes, occasionally flooded | 9K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Glynwood silt loam, 2 to 6 percent slopes | 9K | Moderately well drained | D | Very limited | Very limited |
| Morley silty clay loam, 6 to 12 percent slopes, severely eroded | 9K | Moderately well drained | C | Very limited | Very limited |
| Fincastle silt loam, Tipton Till Plain, 0 to 2 percent slopes | 9K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Treaty silt loam, 0 to 2 percent slopes | 7K | Poorly drained | B/D | Very limited | Very limited |
| Wawasee sandy loam, 2 to 6 percent slopes | 7K | Well drained | B | Not limited | Somewhat limited |
| Blount loam, interlobate moraines, 0 to 2 percent slopes | 7K | Somewhat poorly drained | D | Very limited | Very limited |
| Gessie silt loam, 0 to 2 percent slopes, occasionally flooded | 7K | Well drained | B | Very limited | Very limited |
| Crosier loam, 0 to 2 percent slopes | 5K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Oshtemo sandy loam, 0 to 4 percent slopes | 5K | Well drained | A | Not limited | Very limited |
| Brookston loam | 5K | Poorly drained | B/D | Very limited | Very limited |
| Hennepin silt loam, 25 to 50 percent slopes | 4K | Well drained | C | Very limited | Very limited |
| Rensselaer loam, 0 to 1 percent slopes | 4K | Poorly drained | B/D | Very limited | Very limited |
| Glynwood clay loam, 6 to 12 percent slopes, severely eroded | 4K | Moderately well drained | D | Very limited | Very limited |
| Fox silt loam, till plain, 0 to 2 percent slopes | 4K | Well drained | B | Not limited | Very limited |
| Houghton muck, drained | 4K | Very poorly drained | A/D | Very limited | Very limited |
| Metea loamy fine sand, 2 to 6 percent slopes | 3K | Well drained | C | Not limited | Very limited |
What This Means
Building & Foundations
About 90% 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 96% 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.