Soil series profile
Eulonia soil series
Eulonia is a moderately well drained soil with a fine sandy loam surface, mapped on 202,899 acres in 20 counties across 4 states. Hydrologic group C/D.
- Drainage class
- Moderately well drained 100% of mapped acres
- Hydrologic group
- C/D 76% of mapped acres
- Typical topsoil pH
- 5.5 strongly acidic · range 4.7–5.5
- Mapped area
- 203k acres in 20 counties, 4 states
Typical Eulonia profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–7 in (A) | Fine sandy loam | 5.5 | 13% | 70% | 1.25% |
| 7–55 in (Bt) | Clay | 5.5 | 40% | 30% | 0.25% |
| 55–79 in (BC) | Sandy clay loam | 5.3 | 25% | 57% | 0.25% |

What this means
What Eulonia soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Eulonia soils is strongly acidic: pH 5.5 (most land between 4.7 and 5.5). Most vegetables and lawn grasses do best around 6.0 to 7.0, so lime is often needed; blueberries, azaleas and rhododendrons like it as it is.
Sandy topsoil covers 79% of mapped Eulonia acres. It drains fast and warms early in spring, but dries out and loses nutrients quickly: mulch, compost and steady watering help. The most common surface texture is fine sandy loam (62% of mapped Eulonia acres).
100% of mapped Eulonia acres is moderately well to excessively drained, which suits most garden plants.
For lawns and yards
On >99% 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.
A seasonal high water table comes within 18 inches of the surface on 80% of mapped acres, often in spring. Basements, sump pumps and lawns in low spots feel it first.
For a septic system
For conventional septic absorption fields, NRCS rates 100% of the acres in mapped Eulonia soils very limited, 0% somewhat limited and 0% not limited.
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.
Only a licensed site evaluation or perc test at the actual lot decides whether a system is allowed and which design.
Where Eulonia soil is found
Mapped acres
Eulonia is mapped in South Carolina, Georgia, Virginia and Florida.
| County | Acres | Share of county land |
|---|---|---|
| Berkeley County, SC | 78,684 | 11.5% |
| Georgetown County, SC | 32,478 | 6.2% |
| Horry County, SC | 29,435 | 4.1% |
| Jasper County, SC | 11,964 | 2.9% |
| Screven County, GA | 9,456 | 2.7% |
| Hampton County, SC | 8,278 | 2.3% |
| Sussex County, VA | 7,352 | 2.9% |
| McIntosh County, GA | 4,415 | 1.7% |
| Allendale County, SC | 3,246 | 0.9% |
| King William County, VA | 2,943 | 2.0% |
| Dorchester County, SC | 2,850 | 0.8% |
| Charleston County, SC | 2,354 | 0.4% |
| Liberty County, GA | 2,227 | 0.7% |
| Chatham County, GA | 1,682 | 0.6% |
| Beaufort County, SC | 1,556 | 0.4% |
| Bryan County, GA | 1,378 | 0.5% |
| Effingham County, GA | 1,368 | 0.5% |
| Long County, GA | 958 | 0.4% |
| Charlton County, GA | 140 | 0.0% |
| Gulf County, FL | 135 | 0.0% |
Septic absorption fields
NRCS rating, share of Eulonia acres
Show as a table
| Category | Share of acres |
|---|---|
| Not limited | 0.0% |
| Somewhat limited | 0.0% |
| Very limited | 100.0% |
Drainage, water table and flooding
Share of Eulonia acres
- Depth to seasonal high water table
- About 1.5 feet (18 in) (median where reported); within 18 inches on 80% of acres.
- Flooding
- Not mapped as flooding on most acres.
- Slope
- Typically 1–4% (median 1%).
- Topsoil organic matter
- Median 1.2%.
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 | 100.0% |
| Somewhat poorly drained | 0.0% |
| Poorly drained | 0.0% |
| Very poorly drained | 0.0% |
Hydrologic soil group
Show as a table
| Category | Share of acres |
|---|---|
| A: fast infiltration (mostly sandy or gravelly) | 0.3% |
| B: moderate infiltration | 0.5% |
| C: slow infiltration | 23.4% |
| D: very slow infiltration (clayey, shallow or wet) | 0.0% |
| 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 | 75.7% |
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 Eulonia (component kind "Series") in SSURGO: 202,899 acres.
- Method
- Shares are by mapped acres of Eulonia components. The profile comes from the single largest Eulonia component. Full methodology.