Defiance County, Ohio
The dominant drainage class is Very 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 Defiance County, Ohio.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Latty silty clay, till substratum, 0 to 1 percent slopes | 37K | Very poorly drained | D | Very limited | Very limited |
| Paulding clay, 0 to 1 percent slopes | 32K | Very poorly drained | D | Very limited | Very limited |
| Hoytville silty clay loam, 0 to 1 percent slopes | 25K | Very poorly drained | C/D | Very limited | Very limited |
| Roselms silty clay, 0 to 3 percent slopes | 23K | Somewhat poorly drained | D | Very limited | Very limited |
| Blount loam, 0 to 4 percent slopes | 11K | Somewhat poorly drained | D | Very limited | Very limited |
| Hoytville clay loam, 0 to 1 percent slopes | 10K | Very poorly drained | C/D | Very limited | Very limited |
| Fulton silty clay loam, 0 to 3 percent slopes | 9K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Lenawee silty clay loam, 0 to 1 percent slopes | 8K | Poorly drained | D | Very limited | Very limited |
| Haskins loam, 0 to 3 percent slopes | 8K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Glynwood loam, 2 to 6 percent slopes | 8K | Moderately well drained | D | Very limited | Very limited |
| Hoytville clay, 0 to 1 percent slopes | 7K | Very poorly drained | C/D | Very limited | Very limited |
| Mermill loam | 7K | Very poorly drained | C/D | Very limited | Very limited |
| Nappanee loam, 0 to 3 percent slopes | 5K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Fulton loam, 0 to 3 percent slopes | 4K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Toledo silty clay loam | 4K | Very poorly drained | C/D | Very limited | Very limited |
| Pewamo silty clay loam, 0 to 1 percent slopes | 4K | Very poorly drained | C/D | Very limited | Very limited |
| Roselms loam, 0 to 3 percent slopes | 4K | Somewhat poorly drained | D | Very limited | Very limited |
| Nappanee silty clay loam, 0 to 3 percent slopes | 4K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Shoals silt loam, frequently flooded | 4K | Somewhat poorly drained | C | Very limited | Very limited |
| Kibbie loam, 0 to 3 percent slopes | 3K | Somewhat poorly drained | B/D | Very limited | Very limited |
What This Means
Building & Foundations
About 100% 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.