Sumter County, South Carolina
The dominant drainage class is Well drained and the dominant hydrologic group is B/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 Sumter County, South Carolina.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Norfolk-Noboco complex, 0 to 2 percent slopes | 39K | Well drained | B | Somewhat limited | Somewhat limited |
| Lynchburg-Rains complex, 0 to 2 percent slopes | 36K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Rains-Coxville-Lynchburg complex, 0 to 2 percent slopes | 36K | Poorly drained | B/D | Very limited | Very limited |
| Wagram-Norfolk-Lucknow complex, 0 to 4 percent slopes | 27K | Well drained | B | Somewhat limited | Somewhat limited |
| Goldsboro-Noboco complex, 0 to 2 percent slopes | 26K | Moderately well drained | B/D | Very limited | Very limited |
| Tawcaw-Duckbottom-Mullers complex, 0 to 2 percent slopes, frequently flooded | 24K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Johnston mucky sandy loam, 0 to 2 percent slopes, frequently flooded | 23K | Very poorly drained | A/D | Very limited | Very limited |
| Alaga loamy coarse sand, 0 to 6 percent slopes | 22K | Somewhat excessively drained | A | Not limited | Very limited |
| Rains sandy loam, 0 to 2 percent slopes | 17K | Poorly drained | B/D | Very limited | Very limited |
| Tawcaw-Shellbluff-Mullers complex, 0 to 2 percent slopes, frequently flooded | 16K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Water | 14K | Not rated | Not rated | ||
| Scapo-Mouzon complex, 0 to 2 percent slopes, frequently flooded | 14K | Very poorly drained | C/D | Very limited | Very limited |
| Noboco-Norfolk complex, 0 to 2 percent slopes | 11K | Well drained | C | Somewhat limited | Very limited |
| Autryville-Norfolk complex, 0 to 4 percent slopes | 11K | Well drained | A | Somewhat limited | Somewhat limited |
| Orangeburg loamy sand, 0 to 2 percent slopes | 11K | Well drained | B | Not limited | Somewhat limited |
| Springhill-Lucy-Nankin complex, 6 to 15 percent slopes | 9K | Well drained | B | Somewhat limited | Very limited |
| Vaucluse-Ailey complex, 6 to 15 percent slopes | 8K | Well drained | A | Somewhat limited | Very limited |
| Norfolk-Noboco complex, 2 to 6 percent slopes | 7K | Well drained | B | Somewhat limited | Somewhat limited |
| Smithboro-Persanti complex, 0 to 2 percent slopes | 6K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Troup-Lucy-Nankin complex, 10 to 15 percent slopes | 5K | Well drained | A | Somewhat limited | Somewhat limited |
What This Means
Building & Foundations
About 54% of soils are rated "very limited" for dwellings with basements. Specific challenges include poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 68% 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.