Sevier County Area, Tennessee
The dominant drainage class is Well 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 Sevier County Area, Tennessee.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Cataska-Sylco complex, 25 to 80 percent slopes | 39K | Excessively drained | D | Very limited | Very limited |
| Nonaburg channery silt loam, 25 to 60 percent slopes, severely eroded, rocky | 34K | Well drained | D | Very limited | Very limited |
| Unicoi-Rock outcrop complex, 30 to 80 percent slopes | 19K | Somewhat excessively drained | D | Very limited | Very limited |
| Nonaburg channery silt loam, 12 to 25 percent slopes, severely eroded, rocky | 17K | Well drained | D | Very limited | Very limited |
| Junaluska-Cataska complex, 12 to 25 percent slopes | 16K | Well drained | C | Very limited | Very limited |
| Steadman silt loam, 0 to 3 percent slopes, occasionally flooded | 16K | Moderately well drained | C | Very limited | Very limited |
| Cataska channery silt loam, 25 to 80 percent slopes | 11K | Excessively drained | D | Very limited | Very limited |
| Dewey silt loam, 6 to 15 percent slopes, eroded | 9K | Well drained | B | Somewhat limited | Somewhat limited |
| Dewey silt loam, 15 to 25 percent slopes, eroded | 9K | Well drained | B | Very limited | Very limited |
| Unicoi-Ditney-Rock outcrop complex, 30 to 80 percent slopes | 8K | Somewhat excessively drained | D | Very limited | Very limited |
| Whitesburg silt loam, occasionally flooded | 8K | Moderately well drained | C | Very limited | Very limited |
| Townley silt loam, 5 to 12 percent slopes, eroded | 4K | Well drained | D | Somewhat limited | Very limited |
| Waynesboro loam, 6 to 15 percent slopes, eroded | 3K | Well drained | B | Somewhat limited | Somewhat limited |
| Decatur silt loam, 5 to 12 percent slopes, eroded | 3K | Well drained | B | Somewhat limited | Somewhat limited |
| Talbott-Rock outcrop complex, 10 to 25 percent slopes, eroded | 3K | Well drained | C | Very limited | Very limited |
| Cataska channery silt loam, 12 to 25 percent slopes | 3K | Excessively drained | D | Very limited | Very limited |
| Braddock loam, 5 to 12 percent slopes, eroded | 3K | Well drained | A | Somewhat limited | Very limited |
| Pope sandy loam, occasionally flooded | 3K | Well drained | A | Very limited | Very limited |
| Sequatchie loam, rarely flooded | 2K | Well drained | B | Very limited | Very limited |
| Talbott-Rock outcrop complex, 25 to 60 percent slopes, eroded | 2K | Well drained | C | Very limited | Very limited |
What This Means
Building & Foundations
About 89% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 92% of soils are rated "very limited" for septic absorption fields. Despite good drainage overall, limitations may stem from shallow bedrock, steep slopes, or seasonal conditions. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.
Gardening & Agriculture
Well-drained soils on sloped terrain — good for most plants but watch for erosion. Terracing, contour planting, and mulching help retain moisture and topsoil. Drip irrigation is more effective than sprinklers on slopes.