Soil series profile
Old camp soil series
Old camp is a well drained soil with a very stony loam surface, mapped on 348,031 acres in 16 counties across 3 states. Hydrologic group D.
- Drainage class
- Well drained 100% of mapped acres
- Hydrologic group
- D 100% of mapped acres
- Typical topsoil pH
- 7.2 neutral · range 7.0–7.2
- Mapped area
- 348k acres in 16 counties, 3 states
Typical Old camp profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–2 in (H1) | Very stony loam | 7.2 | 15% | 44% | 1.5% |
| 2–14 in (H2) | Extremely stony clay loam | 7.8 | 31% | 35% | 0.75% |
| 14–24 in (R) | Bedrock | Not reported | Not reported | Not reported | Not reported |
What this means
What Old camp soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Old camp soils is neutral: pH 7.2 (most land between 7.0 and 7.2), the range most vegetables, flowers and lawn grasses prefer.
Loamy topsoil (loam, silt loam and similar) covers 100% of mapped Old camp acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is very stony loam (38% of mapped Old camp acres).
100% of mapped Old camp acres is moderately well to excessively drained, which suits most garden plants.
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.
For a septic system
For conventional septic absorption fields, NRCS rates 100% of the acres in mapped Old camp 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 Old camp soil is found
Mapped acres
Old camp is mapped in Nevada, Oregon and California.
| County | Acres | Share of county land |
|---|---|---|
| Churchill County, NV | 126,956 | 4.6% |
| Washoe County, NV | 100,202 | 2.5% |
| Pershing County, NV | 25,808 | 0.6% |
| Lander County, NV | 25,082 | 0.7% |
| Nye County, NV | 16,808 | 0.2% |
| Lake County, OR | 15,244 | 0.4% |
| Lyon County, NV | 15,223 | 1.2% |
| Modoc County, CA | 8,091 | 0.7% |
| Mineral County, NV | 5,025 | 0.2% |
| Storey County, NV | 4,563 | 2.7% |
| Humboldt County, NV | 2,429 | 0.0% |
| Carson City, NV | 798 | 0.9% |
| Lassen County, CA | 749 | 0.0% |
| Douglas County, NV | 539 | 0.1% |
| Elko County, NV | 511 | 0.0% |
| Sierra County, CA | 3 | 0.0% |
Septic absorption fields
NRCS rating, share of Old camp 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 Old camp 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 10–40% (median 33%).
- 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 | 0.0% |
| C: slow infiltration | 0.0% |
| D: very slow infiltration (clayey, shallow or wet) | 100.0% |
| 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 Old camp (component kind "Series") in SSURGO: 348,031 acres.
- Method
- Shares are by mapped acres of Old camp components. The profile comes from the single largest Old camp component. Full methodology.