Walthall County, Mississippi
The dominant drainage class is Well drained and the dominant hydrologic group is B (moderate infiltration). 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 Walthall County, Mississippi.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Ora loam, 2 to 5 percent slopes, moderately eroded | 49K | Moderately well drained | C | Very limited | Very limited |
| Ruston fine sandy loam, 2 to 5 percent slopes, moderately eroded | 26K | Well drained | B | Not limited | Somewhat limited |
| Smithdale fine sandy loam, 17 to 40 percent slopes | 23K | Well drained | B | Very limited | Very limited |
| Smithdale fine sandy loam, 12 to 17 percent slopes, moderately eroded | 18K | Well drained | B | Very limited | Very limited |
| Smithdale fine sandy loam, 8 to 12 percent slopes, moderately eroded | 17K | Well drained | B | Somewhat limited | Very limited |
| Mantachie soils | 15K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Ora loam, 5 to 8 percent slopes, eroded | 13K | Moderately well drained | C | Somewhat limited | Very limited |
| Ruston fine sandy loam, 5 to 8 percent slopes, eroded | 13K | Well drained | B | Not limited | Somewhat limited |
| Ochlockonee-iuka soils, (jena-kirkville) | 9K | Well drained | B | Very limited | Very limited |
| Wehadkee silt loam (kinston) | 8K | Poorly drained | B/D | Very limited | Very limited |
| Ruston fine sandy loam, 2 to 5 percent slopes | 8K | Well drained | B | Not limited | Somewhat limited |
| Ora loam, 2 to 5 percent slopes | 6K | Moderately well drained | C | Somewhat limited | Very limited |
| Savannah silt loam, 2 to 5 percent slopes, eroded | 5K | Moderately well drained | C/D | Very limited | Very limited |
| Smithdale fine sandy loam, 17 to 40 percent slopes, moderately eroded | 4K | Well drained | B | Very limited | Very limited |
| Ruston fine sandy loam, 8 to 17 percent slopes, severely eroded | 3K | Well drained | B | Somewhat limited | Very limited |
| Stough fine sandy loam, 0 to 3 percent slopes | 3K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Providence silt loam, 2 to 5 percent slopes, eroded | 3K | Moderately well drained | C/D | Very limited | Very limited |
| Falaya silt loam (gillsburg) | 3K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Guin gravelly fine sandy loam, 17 to 40 percent slopes (saffell) | 2K | Well drained | B | Very limited | Very limited |
| Providence silt loam, 5 to 8 percent slopes, eroded | 2K | Moderately well drained | C/D | Very limited | Very limited |
What This Means
Building & Foundations
About 62% 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 79% 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.