Jefferson and Lincoln Counties, Arkansas
The dominant drainage class is Somewhat poorly 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 Jefferson and Lincoln Counties, Arkansas.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Perry clay, 0 to 1 percent slopes | 143K | Poorly drained | D | Very limited | Very limited |
| Rilla silt loam, 0 to 1 percent slopes | 77K | Well drained | B | Somewhat limited | Somewhat limited |
| Pheba silt loam, 0 to 2 percent slopes | 61K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Portland clay, 0 to 1 percent slopes | 48K | Somewhat poorly drained | D | Very limited | Very limited |
| Portland clay, 0 to 1 percent slopes, occasionally flooded | 44K | Somewhat poorly drained | D | Very limited | Very limited |
| Hebert silt loam, 0 to 1 percent slopes | 36K | Somewhat poorly drained | C | Very limited | Very limited |
| Savannah fine sandy loam, 3 to 8 percent slopes | 36K | Moderately well drained | C | Very limited | Very limited |
| Ouachita silt loam, 0 to 1 percent slopes, frequently flooded | 32K | Well drained | C | Very limited | Very limited |
| Savannah fine sandy loam, 1 to 3 percent slopes | 32K | Moderately well drained | C | Very limited | Very limited |
| Water | 31K | D | Not rated | Not rated | |
| McGehee silt loam, 0 to 1 percent slopes | 31K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Desha clay, 0 to 1 percent slopes | 28K | Somewhat poorly drained | D | Very limited | Very limited |
| Sacul fine sandy loam, 3 to 8 percent slopes | 25K | Moderately well drained | D | Somewhat limited | Very limited |
| Rilla silt loam, 1 to 3 percent slopes | 25K | Well drained | B | Somewhat limited | Somewhat limited |
| Perry clay, 0 to 1 percent slopes, occasionally flooded, Arkansas River | 21K | Poorly drained | D | Very limited | Very limited |
| Amy silt loam, 0 to 1 percent slopes | 18K | Poorly drained | C/D | Very limited | Very limited |
| Smithdale fine sandy loam, 3 to 8 percent slopes | 17K | Well drained | B | Not limited | Very limited |
| Sawyer silt loam, 3 to 8 percent slopes | 16K | Moderately well drained | C | Very limited | Very limited |
| Roxana silt loam, 0 to 1 percent slopes | 16K | Well drained | B | Somewhat limited | Somewhat limited |
| Crevasse soils, frequently flooded | 15K | Excessively drained | A | Very limited | Very limited |
What This Means
Building & Foundations
About 74% 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 80% 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.