Darlington County, South Carolina
The dominant drainage class is Well drained and the dominant hydrologic group is C (slow infiltration, moderate 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 Darlington County, South Carolina.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Noboco loamy sand, 0 to 2 percent slopes | 44K | Well drained | C | Very limited | Very limited |
| Goldsboro sandy loam, 0 to 2 percent slopes | 37K | Moderately well drained | C | Very limited | Very limited |
| Rains sandy loam, 0 to 2 percent slopes | 31K | Poorly drained | B/D | Very limited | Very limited |
| Norfolk loamy sand, 0 to 2 percent slopes | 30K | Well drained | B | Somewhat limited | Somewhat limited |
| Coxville sandy loam, 0 to 2 percent slopes | 30K | Poorly drained | C/D | Very limited | Very limited |
| Johnston sandy loam, 0 to 2 percent slopes,frequently flooded | 21K | Very poorly drained | A/D | Very limited | Very limited |
| Bonneau sand, 0 to 6 percent slopes | 15K | Well drained | B | Somewhat limited | Very limited |
| Chastain-Chewacla complex, 0 to 2 percent slopes,frequently flooded | 14K | Poorly drained | C/D | Very limited | Very limited |
| Blanton sand, 0 to 6 percent slopes | 8K | Moderately well drained | A | Somewhat limited | Somewhat limited |
| Vaucluse loamy sand, 2 to 6 percent slopes | 7K | Well drained | C | Not limited | Very limited |
| Riverview silt loam, 0 to 2 percent slopes, frequently flooded | 7K | Well drained | C | Very limited | Very limited |
| Candor sand, 0 to 6 percent slopes | 7K | Somewhat excessively drained | A | Not limited | Somewhat limited |
| Noboco loamy sand, 2 to 6 percent slopes | 6K | Well drained | C | Very limited | Very limited |
| Emporia loamy sand, 2 to 6 percent slopes | 6K | Well drained | C | Somewhat limited | Very limited |
| Autryville sand, 0 to 4 percent slopes | 6K | Well drained | A | Somewhat limited | Somewhat limited |
| Wagram sand, 0 to 6 percent slopes | 5K | Well drained | B | Not limited | Somewhat limited |
| Troup sand, 0 to 6 percent slopes, Southern Coastal Plain | 5K | Somewhat excessively drained | A | Not limited | Somewhat limited |
| Chewacla clay loam, 0 to 2 percent slopes, frequently flooded | 5K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Ailey sand, moderately wet, 0 to 6 percent slopes | 5K | Well drained | B | Somewhat limited | Very limited |
| Alpin sand, 0 to 6 percent slopes, Carolina and Georgia Sandhills | 5K | Excessively drained | A | Not limited | Very limited |
What This Means
Building & Foundations
About 66% 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 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
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.