Soil series profile
Huevi soil series
Huevi is a well drained soil with a very gravelly sandy loam surface, mapped on 233,381 acres in 2 counties across 2 states. Hydrologic group A.
- Drainage class
- Well drained 100% of mapped acres
- Hydrologic group
- A 99% of mapped acres
- Typical topsoil pH
- 8.2 moderately alkaline · range 7.8–8.5
- Mapped area
- 233k acres in 2 counties, 2 states
Typical Huevi profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–2 in (A) | Very gravelly sandy loam | 7.8 | 13% | 67% | 0.5% |
| 2–20 in (Bk) | Extremely gravelly sandy loam | 8.0 | 13% | 67% | 0.5% |
| 20–49 in (2Bkq1) | Extremely gravelly sandy loam | 8.2 | 13% | 67% | 0.5% |
| 49–60 in (2Bkq2) | Extremely gravelly loamy sand | 8.2 | 6% | 78% | 0.5% |
What this means
What Huevi soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Huevi soils is moderately alkaline: pH 8.2 (most land between 7.8 and 8.5). 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 >99% of mapped Huevi acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is extremely gravelly sandy loam (37% of mapped Huevi acres).
100% of mapped Huevi acres is moderately well to excessively drained, which suits most garden plants.
For lawns and yards
99% of mapped acres is in hydrologic group A, where water soaks in fast. Lawns there dry out quickly; deeper, less frequent watering and organic matter help.
For a septic system
For conventional septic absorption fields, NRCS rates 71% of the acres in mapped Huevi soils very limited, 21% somewhat limited and 9% 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 Huevi soil is found
Mapped acres
Huevi is mapped in Arizona and Nevada.
| County | Acres | Share of county land |
|---|---|---|
| Mohave County, AZ | 129,016 | 1.5% |
| Clark County, NV | 104,365 | 2.2% |
Septic absorption fields
NRCS rating, share of Huevi acres
Show as a table
| Category | Share of acres |
|---|---|
| Not limited | 8.7% |
| Somewhat limited | 20.8% |
| Very limited | 70.6% |
Drainage, water table and flooding
Share of Huevi 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 9–25% (median 15%).
- Topsoil organic matter
- Median 0.5%.
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) | 98.7% |
| B: moderate infiltration | 1.3% |
| 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 Huevi (component kind "Series") in SSURGO: 233,381 acres.
- Method
- Shares are by mapped acres of Huevi components. The profile comes from the single largest Huevi component. Full methodology.