Marion County, South Carolina
The dominant drainage class is Somewhat poorly drained and the dominant hydrologic group is C/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 Marion County, South Carolina.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Cantey loam | 41K | Poorly drained | C/D | Very limited | Very limited |
| Tawcaw-Chastain association, frequently flooded | 39K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Lakeland sand, 0 to 6 percent slopes | 31K | Excessively drained | A | Not limited | Very limited |
| Smithboro silt loam | 20K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Coxville fine sandy loam | 18K | Poorly drained | C/D | Very limited | Very limited |
| Rutlege loamy sand | 16K | Very poorly drained | A/D | Very limited | Very limited |
| Dothan loamy fine sand, 0 to 2 percent slopes | 15K | Well drained | C | Somewhat limited | Very limited |
| Johnston association, frequently flooded | 15K | Very poorly drained | A/D | Very limited | Very limited |
| Water | 12K | Not rated | Not rated | ||
| Persanti fine sandy loam, 0 to 2 percent slopes | 10K | Moderately well drained | D | Somewhat limited | Very limited |
| Fuquay sand, 0 to 6 percent slopes | 10K | Well drained | B | Somewhat limited | Very limited |
| Pantego loam | 10K | Very poorly drained | B/D | Very limited | Very limited |
| Byars loam | 8K | Very poorly drained | C/D | Very limited | Very limited |
| Goldsboro loamy fine sand, 0 to 2 percent slopes | 7K | Moderately well drained | C | Very limited | Very limited |
| Ponzer soils | 6K | Very poorly drained | B/D | Very limited | Very limited |
| Centenary sand | 5K | Somewhat excessively drained | A | Somewhat limited | Very limited |
| Blanton sand, 0 to 6 percent slopes | 5K | Moderately well drained | A | Somewhat limited | Very limited |
| Foreston loamy sand | 4K | Moderately well drained | B | Very limited | Very limited |
| Paxville loam | 4K | Very poorly drained | B/D | Very limited | Very limited |
| Dunbar loamy sand | 4K | Somewhat poorly drained | C/D | Very limited | Very limited |
What This Means
Building & Foundations
About 68% 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 95% 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.