Tallahatchie County, Mississippi
The dominant drainage class is 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 Tallahatchie County, Mississippi.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Alligator clay, 0 to 2 percent slopes | 65K | Poorly drained | D | Very limited | Very limited |
| Alligator clay, depressional | 41K | Poorly drained | D | Very limited | Very limited |
| Dundee silt loam, 0 to 2 percent slopes, rarely flooded | 35K | Somewhat poorly drained | C | Very limited | Very limited |
| Falaya silt loam | 24K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Collins silt loam | 22K | Moderately well drained | B | Very limited | Very limited |
| Memphis silt loam, 17 to 40 percent slopes | 21K | Well drained | B | Very limited | Very limited |
| Gullied land-Memphis complex, 8 to 40 percent slopes | 19K | Very limited | Very limited | ||
| Forestdale silty clay loam, 0 to 3 percent slopes | 18K | Poorly drained | D | Very limited | Very limited |
| Dubbs very fine sandy loam, 0 to 2 percent slopes | 17K | Well drained | B | Very limited | Very limited |
| Dundee and Tensas silt loams, 0 to 3 percent slopes | 15K | Somewhat poorly drained | C | Very limited | Very limited |
| Water | 13K | Not rated | Not rated | ||
| Memphis silt loam, 12 to 17 percent slopes, severely eroded | 11K | Well drained | B | Very limited | Very limited |
| Memphis silt loam, 5 to 12 percent slopes, severely eroded | 11K | Well drained | B | Somewhat limited | Somewhat limited |
| Memphis silt loam, 17 to 40 percent slopes, severely eroded | 10K | Well drained | B | Very limited | Very limited |
| Alligator silty clay loam, 0 to 2 percent slopes | 8K | Poorly drained | D | Very limited | Very limited |
| Waverly silt loam | 7K | Poorly drained | B/D | Very limited | Very limited |
| Dundee silty clay loam, 0 to 2 percent slopes, rarely flooded | 7K | Somewhat poorly drained | C | Very limited | Very limited |
| Falaya-Waverly association | 7K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Calhoun-Bonn complex | 6K | Poorly drained | C/D | Very limited | Very limited |
| Memphis silt loam, 5 to 8 percent slopes, eroded | 5K | Well drained | B | Not limited | Somewhat limited |
What This Means
Building & Foundations
About 91% 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 91% 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.