Allendale County, South Carolina
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 Allendale County, South Carolina.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Blanton sand, 0 to 6 percent slopes | 27K | Moderately well drained | A | Somewhat limited | Somewhat limited |
| Norfolk loamy sand, 0 to 2 percent slopes | 18K | Well drained | B | Somewhat limited | Somewhat limited |
| Rains loamy fine sand | 18K | Poorly drained | B/D | Very limited | Very limited |
| Bonneau fine sand, 0 to 2 percent slopes | 17K | Well drained | B | Somewhat limited | Very limited |
| Tawcaw-Chastain complex, frequently flooded | 16K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Emporia loamy sand, 2 to 6 percent slopes | 16K | Well drained | C | Somewhat limited | Very limited |
| Uchee sand, 2 to 6 percent slopes | 15K | Well drained | B | Somewhat limited | Very limited |
| Bonneau fine sand, 2 to 6 percent slopes | 15K | Well drained | B | Somewhat limited | Very limited |
| Ogeechee loamy sand | 10K | Poorly drained | B/D | Very limited | Very limited |
| Pickney loamy sand, frequently flooded | 9K | Very poorly drained | A/D | Very limited | Very limited |
| Pelham loamy sand, 0 to 2 percent slopes | 8K | Poorly drained | B/D | Very limited | Very limited |
| Ocilla fine sand, 0 to 2 percent slopes | 8K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Goldsboro sandy loam, 0 to 2 percent slopes | 7K | Moderately well drained | C | Very limited | Very limited |
| Pantego loam | 6K | Very poorly drained | B/D | Very limited | Very limited |
| Lakeland sand, 0 to 8 percent slopes | 6K | Excessively drained | A | Not limited | Very limited |
| Noboco loamy sand, 0 to 2 percent slopes | 5K | Well drained | C | Somewhat limited | Very limited |
| Cowarts loamy sand, 6 to 10 percent slopes | 5K | Well drained | C | Somewhat limited | Very limited |
| Norfolk loamy sand, 2 to 6 percent slopes | 4K | Well drained | B | Somewhat limited | Somewhat limited |
| Blanton sand, 6 to 10 percent slopes | 4K | Moderately well drained | A | Somewhat limited | Somewhat limited |
| Cowarts loamy sand, 2 to 6 percent slopes | 4K | Well drained | B | Not limited | Very limited |
What This Means
Building & Foundations
About 37% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
Septic Systems
About 75% 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.