Union County, North Carolina
The dominant drainage class is Well 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 Union County, North Carolina.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Cid channery silt loam, 1 to 5 percent slopes | 70K | Moderately well drained | D | Very limited | Very limited |
| Badin channery silt loam, 2 to 8 percent slopes | 54K | Well drained | C | Somewhat limited | Very limited |
| Tarrus gravelly silty clay loam, 2 to 8 percent slopes, moderately eroded | 49K | Well drained | B | Not limited | Somewhat limited |
| Goldston-Badin complex, 2 to 8 percent slopes | 31K | Well drained | D | Very limited | Very limited |
| Badin channery silty clay loam, 2 to 8 percent slopes, moderately eroded | 30K | Well drained | C | Somewhat limited | Very limited |
| Chewacla silt loam, 0 to 2 percent slopes, frequently flooded | 21K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Tarrus gravelly silt loam, 2 to 8 percent slopes | 20K | Well drained | B | Not limited | Somewhat limited |
| Cecil gravelly sandy clay loam, 2 to 8 percent slopes, moderately eroded | 14K | Well drained | B | Not limited | Somewhat limited |
| Goldston-Badin complex, 8 to 15 percent slopes | 13K | Well drained | D | Very limited | Very limited |
| Goldston very channery silt loam, 4 to 15 percent slopes | 10K | Well drained | D | Very limited | Very limited |
| Secrest-Cid complex, 0 to 3 percent slopes | 10K | Moderately well drained | C | Very limited | Very limited |
| Badin channery silt loam, 8 to 15 percent slopes | 9K | Well drained | C | Somewhat limited | Very limited |
| Badin-Urban land complex, 2 to 8 percent slopes | 8K | Well drained | C | Somewhat limited | Very limited |
| Tarrus gravelly silty clay loam, 8 to 15 percent slopes, moderately eroded | 7K | Well drained | B | Somewhat limited | Somewhat limited |
| Badin channery silty clay loam, 8 to 15 percent slopes, moderately eroded | 6K | Well drained | C | Somewhat limited | Very limited |
| Misenheimer-Cid complex, 0 to 3 percent slopes | 5K | Moderately well drained | C/D | Very limited | Very limited |
| Georgeville silty clay loam, 2 to 8 percent slopes, moderately eroded | 5K | Well drained | B | Not limited | Somewhat limited |
| Goldston very channery silt loam, 15 to 45 percent slopes | 5K | Well drained | D | Very limited | Very limited |
| Cecil gravelly sandy clay loam, 8 to 15 percent slopes, moderately eroded | 5K | Well drained | B | Somewhat limited | Somewhat limited |
| Wynott gravelly loam, 2 to 8 percent slopes | 4K | Well drained | D | Very limited | Very limited |
What This Means
Building & Foundations
About 45% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
Septic Systems
About 73% 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
Well-drained soils on sloped terrain — good for most plants but watch for erosion. Terracing, contour planting, and mulching help retain moisture and topsoil. Drip irrigation is more effective than sprinklers on slopes.