Vermilion Parish, Louisiana
The dominant drainage class is Very 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 Vermilion Parish, Louisiana.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Water, large | 135K | Not rated | Not rated | ||
| Allemands mucky peat, 0 to 0.5 percent slopes, tidal | 99K | Very poorly drained | A/D | Very limited | Very limited |
| Patoutville silt loam, 0 to 1 percent slopes | 57K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Kaplan silt loam, 0 to 1 percent slopes | 49K | Somewhat poorly drained | D | Very limited | Very limited |
| Crowley silt loam, 0 to 1 percent slopes | 49K | Somewhat poorly drained | D | Very limited | Very limited |
| Gueydan muck | 44K | Poorly drained | D | Very limited | Very limited |
| Bancker muck, 0 to 0.2 percent slopes, very frequently flooded | 43K | Very poorly drained | D | Very limited | Very limited |
| Midland silty clay loam, 0 to 1 percent slopes, rarely flooded | 37K | Poorly drained | D | Very limited | Very limited |
| Mowata silt loam, 0 to 1 percent slopes, rarely flooded | 36K | Poorly drained | D | Very limited | Very limited |
| Clovelly muck, 0 to 0.2 percent slopes, very frequently flooded | 34K | Very poorly drained | C/D | Very limited | Very limited |
| Larose mucky clay, 0 to 0.2 percent slopes, tidal | 29K | Very poorly drained | C/D | Very limited | Very limited |
| Jeanerette silt loam | 27K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Judice silty clay, 0 to 1 percent slopes, rarely flooded | 26K | Poorly drained | D | Very limited | Very limited |
| Scatlake mucky clay, 0 to 0.2 percent slopes, tidal | 24K | Very poorly drained | D | Very limited | Very limited |
| Lafitte muck, 0 to 0.2 percent slopes, very frequently flooded | 20K | Very poorly drained | A/D | Very limited | Very limited |
| Frost silt loam | 19K | Poorly drained | C/D | Very limited | Very limited |
| Crowley-Patoutville silt loams | 15K | Somewhat poorly drained | D | Very limited | Very limited |
| Creole muck | 14K | Very poorly drained | D | Very limited | Very limited |
| Coteau-Patoutville-Frost silt loams, gently undulating | 9K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Coteau silt loam, 1 to 3 percent slopes | 8K | Somewhat poorly drained | C | Very limited | Very limited |
What This Means
Building & Foundations
About 82% 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 82% 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.