Soil series profile
Redona soil series
Redona is a well drained soil with a loam surface, mapped on 668,653 acres in 9 counties across 2 states. Hydrologic group B.
- Drainage class
- Well drained 100% of mapped acres
- Hydrologic group
- B 100% of mapped acres
- Typical topsoil pH
- 7.9 moderately alkaline · range 7.9–7.9
- Mapped area
- 669k acres in 9 counties, 2 states
Typical Redona profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–5 in (H1) | Loam | 7.9 | 18% | 43% | 1.5% |
| 5–60 in (H2) | Clay loam | 7.9 | 29% | 34% | 0.75% |
What this means
What Redona soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Redona soils is moderately alkaline: pH 7.9. Acid-loving plants such as blueberries and azaleas struggle without amended beds, and some trees and shrubs show iron chlorosis (yellow leaves with green veins).
Loamy topsoil (loam, silt loam and similar) covers 59% of mapped Redona acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is fine sandy loam (38% of mapped Redona acres).
100% of mapped Redona acres is moderately well to excessively drained, which suits most garden plants.
For lawns and yards
Most land is in hydrologic groups B and C, where rain soaks in at a moderate pace.
For a septic system
For conventional septic absorption fields, NRCS rates 0% of the acres in mapped Redona soils very limited, >99% somewhat limited and 0% not limited.
Only a licensed site evaluation or perc test at the actual lot decides whether a system is allowed and which design.
Where Redona soil is found
Mapped acres
Redona is mapped in New Mexico and Texas.
| County | Acres | Share of county land |
|---|---|---|
| San Miguel County, NM | 141,896 | 4.8% |
| Guadalupe County, NM | 133,556 | 6.9% |
| De Baca County, NM | 98,691 | 6.6% |
| Quay County, NM | 97,818 | 5.2% |
| Chaves County, NM | 97,348 | 2.5% |
| Jeff Davis County, TX | 65,572 | 4.5% |
| Roosevelt County, NM | 30,638 | 2.0% |
| Deaf Smith County, TX | 2,948 | 0.3% |
| Curry County, NM | 185 | 0.0% |
Septic absorption fields
NRCS rating, share of Redona acres
Show as a table
| Category | Share of acres |
|---|---|
| Not limited | 0.0% |
| Somewhat limited | 99.8% |
| Very limited | 0.0% |
| Not rated | 0.2% |
Drainage, water table and flooding
Share of Redona acres
- Depth to seasonal high water table
- None reported within about 6.5 feet (median where reported).
- Flooding
- Not mapped as flooding on most acres.
- Slope
- Typically 0–3% (median 2%).
- Topsoil organic matter
- Median 1.5%.
Drainage class
Show as a table
| Category | Share of acres |
|---|---|
| Excessively drained | 0.0% |
| Somewhat excessively drained | 0.0% |
| Well drained | 100.0% |
| Moderately well drained | 0.0% |
| 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) | 0.0% |
| B: moderate infiltration | 100.0% |
| 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 | 0.0% |
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 Redona (component kind "Series") in SSURGO: 668,653 acres.
- Method
- Shares are by mapped acres of Redona components. The profile comes from the single largest Redona component. Full methodology.