Webster Parish, Louisiana
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 Webster Parish, Louisiana.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Guyton-Ouachita silt loams, 0 to 1 percent slopes, frequently flooded | 70K | Poorly drained | C/D | Very limited | Very limited |
| Kolin silt loam, 1 to 3 percent slopes | 51K | Somewhat poorly drained | C | Very limited | Very limited |
| Malbis fine sandy loam, 1 to 3 percent slopes | 31K | Moderately well drained | C | Somewhat limited | Very limited |
| Gore silt loam, 5 to 12 percent slopes | 27K | Moderately well drained | D | Very limited | Very limited |
| Darley gravelly loamy fine sand, 5 to 12 percent slopes | 20K | Well drained | C | Somewhat limited | Very limited |
| Sacul fine sandy loam, 5 to 12 percent slopes | 18K | Moderately well drained | D | Very limited | Very limited |
| Gore silt loam, 1 to 5 percent slopes, moist | 17K | Moderately well drained | D | Very limited | Very limited |
| Darley gravelly loamy fine sand, 1 to 5 percent slopes | 15K | Well drained | C | Not limited | Very limited |
| Sacul fine sandy loam, 1 to 5 percent slopes | 15K | Moderately well drained | D | Somewhat limited | Very limited |
| Wrightsville silt loam, 0 to 1 percent slopes, rarely flooded | 15K | Poorly drained | D | Very limited | Very limited |
| Malbis fine sandy loam, 3 to 8 percent slopes | 15K | Moderately well drained | C | Somewhat limited | Very limited |
| Smithdale fine sandy loam, 5 to 12 percent slopes | 14K | Well drained | B | Somewhat limited | Very limited |
| Ruston fine sandy loam, 1 to 3 percent slopes | 13K | Well drained | C | Not limited | Very limited |
| Water | 12K | D | Not rated | Not rated | |
| Gurdon silt loam, 1 to 3 percent slopes | 7K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Pits | 6K | D | Not rated | Not rated | |
| McLaurin loamy fine sand, 3 to 8 percent slopes | 6K | Well drained | B | Not limited | Somewhat limited |
| McLaurin loamy fine sand, 1 to 3 percent slopes | 6K | Well drained | B | Not limited | Somewhat limited |
| Mahan fine sandy loam, 1 to 5 percent slopes | 5K | Well drained | B | Not limited | Very limited |
| Iuka-Dela complex, 0 to 1 percent slopes, frequently flooded | 5K | Moderately well drained | C | Very limited | Very limited |
What This Means
Building & Foundations
About 56% 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 91% 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.