Gibson County, Tennessee
The dominant drainage class is Moderately 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 Gibson County, Tennessee.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Collins silt loam, 0 to 2 percent slopes, occasionally flooded, brief duration | 38K | Moderately well drained | B | Very limited | Very limited |
| Loring silt loam, 5 to 8 percent slopes, severely eroded | 34K | Moderately well drained | D | Very limited | Very limited |
| Lexington, Smithdale and Providence soils, 12 to 30 percent slopes, severely eroded | 32K | Well drained | B | Very limited | Very limited |
| Falaya silt loam, frequently flooded | 31K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Routon silt loam, 0 to 2 percent slopes | 26K | Poorly drained | C/D | Very limited | Very limited |
| Providence silt loam, 8 to 15 percent slopes, severely eroded | 23K | Moderately well drained | C/D | Very limited | Very limited |
| Providence silt loam, 5 to 8 percent slopes, severely eroded | 21K | Moderately well drained | C/D | Very limited | Very limited |
| Grenada silt loam, 2 to 5 percent slopes, severely eroded | 19K | Moderately well drained | D | Very limited | Very limited |
| Loring silt loam, 2 to 5 percent slopes, moderately eroded | 17K | Moderately well drained | C/D | Very limited | Very limited |
| Rosebloom, Waverly silt loams and frequently flooded soils | 17K | Poorly drained | B/D | Very limited | Very limited |
| Providence silt loam, 2 to 5 percent slopes, severely eroded | 16K | Moderately well drained | C/D | Very limited | Very limited |
| Feliciana silt loam, 2 to 5 percent slopes, moderately eroded, northern phase | 14K | Well drained | B | Not limited | Somewhat limited |
| Arkabutla silt loam, 0 to 2 percent slopes, frequently flooded, very long duration | 13K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Lexington silt loam, 2 to 5 percent slopes, moderately eroded | 12K | Well drained | B | Not limited | Very limited |
| Grenada silt loam, 2 to 5 percent slopes, moderately eroded | 12K | Moderately well drained | C | Very limited | Very limited |
| Providence silt loam, 2 to 5 percent slopes, eroded | 10K | Moderately well drained | C/D | Very limited | Very limited |
| Loring silt loam, 8 to 12 percent slopes, severely eroded | 10K | Moderately well drained | D | Very limited | Very limited |
| Calloway silt loam, 1 to 3 percent slopes, eroded | 8K | Somewhat poorly drained | D | Very limited | Very limited |
| Loring silt loam, 2 to 5 percent slopes, severely eroded | 8K | Moderately well drained | C/D | Very limited | Very limited |
| Rosebloom silt loam, ponded | 7K | Poorly drained | B/D | Very limited | Very limited |
What This Means
Building & Foundations
About 92% 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. 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
Drainage is generally favorable for gardening. Adding compost and mulch will improve fertility and water retention. Test your soil's pH before planting — most vegetables prefer 6.0-7.0.