Grant County, Arkansas
The dominant drainage class is Moderately 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 Grant County, Arkansas.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Stough fine sandy loam, 1 to 3 percent slopes | 49K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Warnock fine sandy loam, 1 to 7 percent slopes | 48K | Moderately well drained | C | Somewhat limited | Very limited |
| Guyton silt loam, 0 to 1 percent slopes, frequently flooded | 43K | Poorly drained | C/D | Very limited | Very limited |
| Smithton fine sandy loam, 0 to 2 percent slopes | 35K | Poorly drained | C/D | Very limited | Very limited |
| Sacul fine sandy loam, 1 to 8 percent slopes | 28K | Moderately well drained | C | Somewhat limited | Very limited |
| Ouachita silt loam, 0 to 2 percent slopes, frequently flooded | 21K | Well drained | C | Very limited | Very limited |
| Sawyer very fine sandy loam, 1 to 8 percent slopes | 21K | Moderately well drained | C | Very limited | Very limited |
| Sardis silt loam, 0 to 1 percent slopes, frequently flooded | 18K | Somewhat poorly drained | C | Very limited | Very limited |
| Amy silt loam, 0 to 2 percent slopes | 16K | Poorly drained | B/D | Very limited | Very limited |
| Pikeville fine sandy loam, 1 to 8 percent slopes | 16K | Well drained | B | Not limited | Very limited |
| Bibb fine sandy loam, 0 to 1 percent slopes, frequently flooded | 15K | Poorly drained | B/D | Very limited | Very limited |
| Una silty clay loam, 0 to 1 percent slopes, frequently flooded | 12K | Poorly drained | D | Very limited | Very limited |
| Sacul fine sandy loam, 8 to 15 percent slopes | 11K | Moderately well drained | D | Somewhat limited | Very limited |
| Sacul gravelly fine sandy loam, 1 to 8 percent slopes | 10K | Moderately well drained | C | Somewhat limited | Very limited |
| Sacul gravelly fine sandy loam, 15 to 35 percent slopes | 10K | Moderately well drained | C | Very limited | Very limited |
| Sacul fine sandy loam, 15 to 35 percent slopes | 9K | Moderately well drained | C | Very limited | Very limited |
| Rosalie loamy fine sand, 1 to 8 percent slopes | 9K | Well drained | A | Somewhat limited | Very limited |
| Adaton silt loam, 0 to 2 percent slopes | 8K | Poorly drained | C/D | Very limited | Very limited |
| Gurdon silt loam, 1 to 3 percent slopes | 5K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Sacul gravelly fine sandy loam, 8 to 15 percent slopes | 4K | Moderately well drained | C | Somewhat limited | Very limited |
What This Means
Building & Foundations
About 67% of soils are rated "very limited" for dwellings with basements. Specific challenges include steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 100% 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.