Soil series profile
Edgerly soil series
Edgerly is a poorly drained soil with a loam surface, mapped on 138,138 acres in 9 counties in LA. Hydrologic group D.
- Drainage class
- Poorly drained 100% of mapped acres
- Hydrologic group
- D 69% of mapped acres
- Typical topsoil pH
- 5.7 moderately acidic · range 5.7–5.7
- Mapped area
- 138k acres in 9 counties, 1 state
Typical Edgerly profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–7 in (Ap) | Loam | 5.7 | 14% | 44% | 2.5% |
| 7–31 in (Bt) | Loam | 5.9 | 22% | 36% | 0.8% |
| 31–80 in (Btg) | Clay loam | 6.1 | 29% | 40% | 0.2% |

What this means
What Edgerly soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Edgerly soils is moderately acidic: pH 5.7. Many vegetables grow well here, and some gardens benefit from a little lime. Test before adding any.
Loamy topsoil (loam, silt loam and similar) covers 69% of mapped Edgerly acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is loam (69% of mapped Edgerly acres).
100% of mapped Edgerly acres is somewhat poorly to very poorly drained, so soil stays soggy for long spells after rain and in wet seasons. Raised beds, plants that tolerate wet feet, and not working the soil while wet all help.
For lawns and yards
On 69% of mapped acres, rain soaks in slowly (hydrologic groups C and D, including dual groups that are D until drained). Expect runoff and puddles after heavy rain: core-aerate compacted lawns and keep ground sloping away from foundations.
For a septic system
For conventional septic absorption fields, NRCS rates 69% of the acres in mapped Edgerly soils very limited, 0% somewhat limited and 0% not limited (31% not rated, such as urban land, pits or water).
Where the soil is very limited (slow permeability, a high water table, flooding, shallow bedrock or steep slopes), alternative systems such as mound or sand-filter designs are common and cost more.
Flooding is mapped on 100% of the acres (0% occasional, 0% frequent).
Only a licensed site evaluation or perc test at the actual lot decides whether a system is allowed and which design.
Where Edgerly soil is found
Mapped acres
Edgerly is mapped in Louisiana.
| County | Acres | Share of county land |
|---|---|---|
| Calcasieu Parish, LA | 64,630 | 9.7% |
| Cameron Parish, LA | 28,550 | 3.5% |
| Jefferson Davis Parish, LA | 23,992 | 5.8% |
| Vermilion Parish, LA | 9,317 | 1.3% |
| Acadia Parish, LA | 5,976 | 1.4% |
| Allen Parish, LA | 3,214 | 0.7% |
| Evangeline Parish, LA | 2,161 | 0.5% |
| Lafayette Parish, LA | 165 | 0.1% |
| St. Landry Parish, LA | 134 | 0.0% |
Septic absorption fields
NRCS rating, share of Edgerly acres
Show as a table
| Category | Share of acres |
|---|---|
| Not limited | 0.0% |
| Somewhat limited | 0.0% |
| Very limited | 69.0% |
| Not rated | 31.0% |
Drainage, water table and flooding
Share of Edgerly acres
- Depth to seasonal high water table
- About 2.0 feet (24 in) (median where reported).
- Flooding
- Mapped as flooding on 100% of acres (0% occasional, 0% frequent).
- Slope
- Typically 0–0% (median 0%).
- Topsoil organic matter
- Median 2.5%.
Drainage class
Show as a table
| Category | Share of acres |
|---|---|
| Excessively drained | 0.0% |
| Somewhat excessively drained | 0.0% |
| Well drained | 0.0% |
| Moderately well drained | 0.0% |
| Somewhat poorly drained | 0.0% |
| Poorly drained | 100.0% |
| Very poorly drained | 0.0% |
Hydrologic soil group
Show as a table
| Category | Share of acres |
|---|---|
| A: fast infiltration (mostly sandy or gravelly) | 0.0% |
| B: moderate infiltration | 0.0% |
| C: slow infiltration | 0.0% |
| D: very slow infiltration (clayey, shallow or wet) | 69.0% |
| A/D: D as is, A if drained | 0.0% |
| B/D: D as is, B if drained | 0.0% |
| C/D: D as is, C if drained | 0.0% |
| Not rated | 31.0% |
Sources & data dates
- Source
- USDA NRCS Soil Survey Geographic Database (SSURGO), queried through Soil Data Access. Public domain.
- Data date
- SSURGO as published on November 3, 2026 (most recent survey area update October 26, 2026). NRCS refreshes SSURGO each October.
- Scope
- All map unit components named Edgerly (component kind "Series") in SSURGO: 138,138 acres.
- Method
- Shares are by mapped acres of Edgerly components. The profile comes from the single largest Edgerly component. Full methodology.