Coffee County, Tennessee
The dominant drainage class is Well 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 Coffee County, Tennessee.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Dickson silt loam, 2 to 5 percent slopes | 45K | Moderately well drained | C/D | Very limited | Very limited |
| Mountview silt loam, eroded, gently sloping phase | 19K | Well drained | B | Somewhat limited | Somewhat limited |
| Hawthorne gravelly silt loam, 20 to 60 percent slopes | 18K | Somewhat excessively drained | B | Very limited | Very limited |
| Lawrence silt loam | 17K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Mountview silt loam, gently sloping phase | 11K | Well drained | B | Somewhat limited | Somewhat limited |
| Lobelville silt loam, local alluvium phase | 10K | Moderately well drained | B/D | Very limited | Very limited |
| Guthrie silt loam, 0 to 2 percent slopes, occasionally ponded | 9K | Poorly drained | C/D | Very limited | Very limited |
| Sango silt loam, 0 to 2 percent slopes | 8K | Moderately well drained | C/D | Very limited | Very limited |
| Dellrose cherty silt loam, moderately steep phase | 7K | Well drained | A | Very limited | Very limited |
| Sugargrove gravelly silt loam, 5 to 12 percent slopes | 7K | Well drained | B | Somewhat limited | Very limited |
| Rockland, moderately steep | 6K | Well drained | D | Very limited | Very limited |
| Mountview silt loam, eroded, gently sloping shallow phase | 5K | Well drained | B | Somewhat limited | Somewhat limited |
| Greendale silt loam | 5K | Well drained | A | Very limited | Very limited |
| Mountview silt loam, eroded, sloping shallow phase | 5K | Well drained | B | Somewhat limited | Somewhat limited |
| Hawthorne-Sugargrove complex, 5 to 20 percent slopes | 4K | Somewhat excessively drained | A | Somewhat limited | Very limited |
| Lobelville silt loam | 4K | Moderately well drained | B/D | Very limited | Very limited |
| Water | 4K | Not rated | Not rated | ||
| Lee silt loam | 3K | Poorly drained | B/D | Very limited | Very limited |
| Rockland, moderately steep, Nashville Basin | 3K | Well drained | D | Very limited | Very limited |
| Purdy loam | 3K | Poorly drained | C/D | Very limited | Very limited |
What This Means
Building & Foundations
About 71% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 77% 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.