Pulaski County, Arkansas
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 Pulaski County, Arkansas.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Carnasaw-Mountainburg association, steep | 64K | Well drained | C | Very limited | Very limited |
| Perry clay, 0 to 1 percent slopes, rarely flooded | 33K | Poorly drained | D | Very limited | Very limited |
| Linker-Mountainburg association, 12 to 25 percent slopes, rocky | 29K | Well drained | D | Very limited | Very limited |
| Water | 27K | D | Not rated | Not rated | |
| Carnasaw-Mountainburg association, undulating | 26K | Well drained | C | Very limited | Very limited |
| Leadvale silt loam, 1 to 3 percent slopes | 24K | Moderately well drained | C/D | Very limited | Very limited |
| Norwood silty clay loam | 20K | Well drained | B | Very limited | Somewhat limited |
| Linker gravelly fine sandy loam, 3 to 8 percent slopes | 20K | Well drained | C | Very limited | Very limited |
| Keo silt loam, 0 to 1 percent slopes, rarely flooded | 19K | Well drained | B | Very limited | Very limited |
| Rilla silt loam, 0 to 1 percent slopes | 17K | Well drained | B | Somewhat limited | Somewhat limited |
| Guthrie-Leadvale complex, 0 to 3 percent slopes | 16K | Poorly drained | D | Very limited | Very limited |
| Leadvale silt loam, 3 to 8 percent slopes | 14K | Moderately well drained | C/D | Very limited | Very limited |
| Urban land | 14K | D | Not rated | Not rated | |
| Amy silt loam, 0 to 1 percent slopes, frequently flooded | 12K | Poorly drained | C/D | Very limited | Very limited |
| Carnasaw-Urban land complex, 3 to 8 percent slopes | 12K | Well drained | C | Very limited | Very limited |
| Leadvale-Urban land complex, 1 to 3 percent slopes | 11K | Moderately well drained | D | Very limited | Very limited |
| Moreland silty clay | 11K | Somewhat poorly drained | D | Very limited | Very limited |
| Bruno fine sandy loam | 9K | Excessively drained | A | Very limited | Very limited |
| Smithdale-Urban land complex, 3 to 8 percent slopes | 9K | Well drained | B | Not limited | Very limited |
| Wrightsville silt loam, 0 to 1 percent slopes | 8K | Poorly drained | D | Very limited | Very limited |
What This Means
Building & Foundations
About 83% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 80% 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.