Soil series profile
Mouzon soil series
Mouzon is a poorly drained soil with a fine sandy loam surface, mapped on 125,892 acres in 7 counties across 2 states. Hydrologic group C/D.
- Drainage class
- Poorly drained 100% of mapped acres
- Hydrologic group
- C/D 100% of mapped acres
- Typical topsoil pH
- 5.5 strongly acidic · range 4.7–5.5
- Mapped area
- 126k acres in 7 counties, 2 states
Typical Mouzon profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–5 in (A) | Fine sandy loam | 5.5 | 16% | 70% | 2.25% |
| 5–8 in (Eg) | Fine sandy loam | 5.5 | 16% | 70% | 0.2% |
| 8–61 in (Btg) | Sandy clay loam | 6.8 | 27% | 56% | 0.2% |
| 61–68 in (BCg) | Sandy loam | 7.3 | 18% | 62% | 0.2% |
| 68–80 in (Cg) | Sandy loam | 7.3 | 13% | 70% | 0.2% |

What this means
What Mouzon soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Mouzon 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.
Loamy topsoil (loam, silt loam and similar) covers 94% of mapped Mouzon acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is fine sandy loam (63% of mapped Mouzon acres).
100% of mapped Mouzon 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 100% 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 100% 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 Mouzon 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.
Flooding is mapped on 94% of the acres (36% occasional, 55% frequent).
Only a licensed site evaluation or perc test at the actual lot decides whether a system is allowed and which design.
Where Mouzon soil is found
Mapped acres
Mouzon is mapped in South Carolina and Florida.
| County | Acres | Share of county land |
|---|---|---|
| Dorchester County, SC | 45,218 | 12.6% |
| Orangeburg County, SC | 28,708 | 4.2% |
| Williamsburg County, SC | 25,515 | 4.4% |
| Charleston County, SC | 13,487 | 2.3% |
| Lafayette County, FL | 7,166 | 2.1% |
| Sumter County, SC | 5,061 | 1.2% |
| Lee County, SC | 737 | 0.3% |
Septic absorption fields
NRCS rating, share of Mouzon 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 Mouzon acres
- Depth to seasonal high water table
- About 0 inches (median where reported); within 18 inches on 100% of acres.
- Flooding
- Mapped as flooding on 94% of acres (36% occasional, 55% frequent).
- Slope
- Typically 1–1% (median 1%).
- Topsoil organic matter
- Median 2.2%.
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 | 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) | 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 | 100.0% |
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 Mouzon (component kind "Series") in SSURGO: 125,892 acres.
- Method
- Shares are by mapped acres of Mouzon components. The profile comes from the single largest Mouzon component. Full methodology.