Calcasieu Parish, Louisiana
The most common soil here is Mowata, on about 11% of the land: a silt loam, smooth, like flour. Edgerly and Guyton come next.
About 2% of the land drains well, and 88% stays wet for long stretches; groundwater comes within two feet of the surface under 79% of it.
USDA rates 92% of the land very limited for a standard septic drain field, and 90% very limited for homes with basements. That means extra cost or special design, not that it can't be done.
Worth knowing: 18% of the land floods occasionally or more.
Soils change over short distances, so look up an address below for the soil at that exact spot and the reasons behind each rating.
The soils you're most likely standing on
The biggest named soils in Calcasieu Parish, Louisiana, each drawn five feet deep from its official USDA description, in its recorded colors.
Dots mark gravel; white flecks mark lime. Shares are by acres across the survey area, and each mapped patch usually mixes several of these soils.
The biggest mapped areas
The dominant drainage class is Poorly drained and the dominant hydrologic group is D (very slow infiltration, high runoff). The most common soil order is Alfisols — moderately leached forest soils with a clay-enriched subsoil. 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 Calcasieu Parish, Louisiana. Search your address to find the exact soil composition, drainage, and series details at your specific location.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Mowata-Vidrine complex, 0 to 1 percent slopes, rarely flooded | 124K | Poorly drained | D | Very limited | Very limited |
| Kinder-Gist complex, 0 to 1 percent slopes | 72K | Poorly drained | C/D | Very limited | Very limited |
| Edgerly loam, 0 to 1 percent slopes, rarely flooded | 67K | Poorly drained | D | Very limited | Very limited |
| Crowley-Vidrine complex, 0 to 1 percent slopes | 44K | Somewhat poorly drained | D | Very limited | Very limited |
| Caddo-Messer complex, 0 to 1 percent slopes | 42K | Poorly drained | C/D | Very limited | Very limited |
| Prairieland silt loam, 0 to 1 percent slopes, rarely flooded | 40K | Poorly drained | C/D | Very limited | Very limited |
| Water | 36K | Not rated | Not rated | ||
| Guyton and Bienville soils frequently flooded | 30K | Poorly drained | C/D | Very limited | Very limited |
| Brimstone silt loam, 0 to 1 percent slopes, rarely flooded | 28K | Poorly drained | C/D | Very limited | Very limited |
| Guyton-Messer complex, 0 to 1 percent slopes, rarely flooded | 27K | Poorly drained | C/D | Very limited | Very limited |
| Guyton silt loam, 0 to 1 percent slopes, occasionally flooded | 23K | Poorly drained | C/D | Very limited | Very limited |
| Glenmora silt loam, 1 to 3 percent slopes | 21K | Moderately well drained | C | Very limited | Very limited |
| Acadia silt loam, 1 to 3 percent slopes | 13K | Somewhat poorly drained | D | Very limited | Very limited |
| Arat mucky silt loam | 13K | Very poorly drained | C/D | Very limited | Very limited |
| Midland silty clay loam, 0 to 1 percent slopes, rarely flooded | 12K | Poorly drained | D | Very limited | Very limited |
| Judice silty clay, 0 to 1 percent slopes, rarely flooded | 12K | Poorly drained | D | Very limited | Very limited |
| Bienville-Cahaba-Guyton complex, gently undulating | 11K | Somewhat excessively drained | A | Somewhat limited | Very limited |
| Basile and Brule, 0 to 3 percent slopes, frequently flooded | 9K | Poorly drained | C/D | Very limited | Very limited |
| Gentilly muck, 0 to 0.5 percent slopes, very frequently flooded | 9K | Very poorly drained | D | Very limited | Very limited |
| Barbary mucky clay, 0 to 1 percent slopes, frequently flooded | 8K | Very poorly drained | D | Very limited | Very limited |
Soil Orders in This Area
The USDA classifies every soil into one of 12 soil orders. Here are the dominant orders found in this survey area.
What This Means
Building & Foundations
About 90% 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 92% 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.