Caldwell Parish, Louisiana
The dominant drainage class is Moderately 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 Caldwell Parish, Louisiana.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Savannah-Sacul association, gently sloping | 48K | Moderately well drained | C/D | Very limited | Very limited |
| Sacul fine sandy loam, 3 to 12 percent slopes | 48K | Moderately well drained | D | Very limited | Very limited |
| Perry clay, 0 to 1 percent slopes, occasionally flooded, Arkansas River | 41K | Poorly drained | D | Very limited | Very limited |
| Guyton and Ouachita silt loams, frequently flooded | 34K | Poorly drained | C/D | Very limited | Very limited |
| Frizzell-Guyton-Providence association, 0 to 2 percent slopes | 30K | Somewhat poorly drained | C | Somewhat limited | Very limited |
| Olla-Cadeville association, steep | 19K | Well drained | B | Very limited | Very limited |
| Falkner silt loam, 0 to 2 percent slopes | 15K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Hebert silt loam, 0 to 1 percent slopes | 15K | Somewhat poorly drained | C | Very limited | Very limited |
| Alligator clay, frequently flooded | 12K | Poorly drained | D | Very limited | Very limited |
| Bayoudan clay, 8 to 40 percent slopes | 10K | Moderately well drained | D | Very limited | Very limited |
| Water | 9K | D | Not rated | Not rated | |
| Perry silty clay loam | 8K | Poorly drained | D | Very limited | Very limited |
| Perry-Hebert complex, gently undulating | 7K | Poorly drained | D | Very limited | Very limited |
| Rilla silt loam, 1 to 3 percent slopes | 7K | Well drained | B | Somewhat limited | Somewhat limited |
| Hebert silt loam, gently undulating, occasionally flooded | 5K | Somewhat poorly drained | C | Very limited | Very limited |
| Providence silt loam, 1 to 5 percent slopes | 4K | Moderately well drained | C/D | Very limited | Very limited |
| Sterlington silt loam | 3K | Well drained | B | Not limited | Somewhat limited |
| Ruston fine sandy loam, 3 to 8 percent slopes | 3K | Well drained | B | Not limited | Somewhat limited |
| Hebert silty clay loam, 0 to 1 percent slopes | 3K | Somewhat poorly drained | C | Very limited | Very limited |
| Bayoudan clay, 3 to 8 percent slopes | 3K | Moderately well drained | D | Very limited | Very limited |
What This Means
Building & Foundations
About 84% 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 93% 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.