Soil series profile
Barkerville soil series
Barkerville is a well drained soil with a cobbly sandy loam surface, mapped on 444,350 acres in 3 counties in AZ. Hydrologic group B.
- Drainage class
- Well drained 100% of mapped acres
- Hydrologic group
- B 94% of mapped acres
- Typical topsoil pH
- 7.0 neutral · range 7.0–7.0
- Mapped area
- 444k acres in 3 counties, 1 state
Typical Barkerville profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–10 in (H1) | Cobbly sandy loam | 7.0 | 13% | 68% | 1.5% |
| 10–25 in (H2) | Very gravelly loamy sand | 7.0 | 8% | 84% | 1.5% |
| 25–30 in (H3) | Weathered bedrock | Not reported | Not reported | Not reported | Not reported |
What this means
What Barkerville soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Barkerville soils is neutral: pH 7.0, the range most vegetables, flowers and lawn grasses prefer.
Loamy topsoil (loam, silt loam and similar) covers 100% of mapped Barkerville acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is cobbly sandy loam (93% of mapped Barkerville acres).
100% of mapped Barkerville 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 100% of the acres in mapped Barkerville 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 Barkerville soil is found
Mapped acres
Barkerville is mapped in Arizona.
| County | Acres | Share of county land |
|---|---|---|
| Yavapai County, AZ | 401,704 | 9.7% |
| Gila County, AZ | 13,629 | 1.0% |
| Navajo County, AZ | 357 | 0.0% |
Septic absorption fields
NRCS rating, share of Barkerville 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 Barkerville 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 40–40% (median 40%).
- 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 | 93.5% |
| C: slow infiltration | 0.0% |
| D: very slow infiltration (clayey, shallow or wet) | 6.5% |
| 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 Barkerville (component kind "Series") in SSURGO: 444,350 acres.
- Method
- Shares are by mapped acres of Barkerville components. The profile comes from the single largest Barkerville component. Full methodology.