Soil series profile
Eckrant soil series
Eckrant is a well drained soil with a very cobbly silty clay surface, mapped on 1,906,593 acres in 29 counties in TX. Hydrologic group D.
- Drainage class
- Well drained 100% of mapped acres
- Hydrologic group
- D 96% of mapped acres
- Typical topsoil pH
- 7.5 slightly alkaline · range 7.3–7.5
- Mapped area
- 1.9M acres in 29 counties, 1 state
Typical Eckrant profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–9 in (H1) | Very cobbly silty clay | 7.5 | 40% | 8% | 6.5% |
| 9–80 in (H2) | Bedrock | Not reported | Not reported | Not reported | Not reported |

What this means
What Eckrant soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Eckrant soils is slightly alkaline: pH 7.5 (most land between 7.3 and 7.5). 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).
Clayey topsoil covers 95% of mapped Eckrant acres. Clay holds water and nutrients but drains slowly and compacts if worked wet: add compost, avoid tilling soggy soil and consider raised beds. The most common surface texture is very cobbly silty clay (45% of mapped Eckrant acres).
100% of mapped Eckrant acres is moderately well to excessively drained, which suits most garden plants.
For lawns and yards
On 96% 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 95% of the acres in mapped Eckrant soils very limited, 0% somewhat limited and 0% not limited (5% not rated, such as urban land, pits or water).
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 Eckrant soil is found
Mapped acres
Eckrant is mapped in Texas.
| County | Acres | Share of county land |
|---|---|---|
| Edwards County, TX | 516,714 | 38.1% |
| Real County, TX | 187,819 | 41.9% |
| Kerr County, TX | 150,130 | 21.3% |
| Bandera County, TX | 133,486 | 26.4% |
| Bexar County, TX | 117,096 | 14.7% |
| Williamson County, TX | 105,697 | 14.7% |
| Bosque County, TX | 85,642 | 13.6% |
| Kendall County, TX | 78,691 | 18.6% |
| Travis County, TX | 70,780 | 11.1% |
| Medina County, TX | 69,611 | 8.2% |
| Coryell County, TX | 57,486 | 8.5% |
| Burnet County, TX | 52,186 | 8.2% |
| Uvalde County, TX | 43,703 | 4.4% |
| Bell County, TX | 35,795 | 5.3% |
| San Saba County, TX | 35,305 | 4.9% |
| Somervell County, TX | 29,304 | 24.6% |
| Hays County, TX | 28,714 | 8.0% |
| Hood County, TX | 22,200 | 8.2% |
| Hamilton County, TX | 19,603 | 3.7% |
| Blanco County, TX | 16,974 | 3.7% |
| Comal County, TX | 16,653 | 3.9% |
| Lampasas County, TX | 11,437 | 2.5% |
| Llano County, TX | 10,139 | 1.7% |
| McLennan County, TX | 5,641 | 0.8% |
| Kimble County, TX | 3,024 | 0.4% |
| Montague County, TX | 1,283 | 0.2% |
| Mills County, TX | 656 | 0.1% |
| McCulloch County, TX | 544 | 0.1% |
| Brown County, TX | 281 | 0.0% |
Septic absorption fields
NRCS rating, share of Eckrant acres
Show as a table
| Category | Share of acres |
|---|---|
| Not limited | 0.0% |
| Somewhat limited | 0.0% |
| Very limited | 95.4% |
| Not rated | 4.6% |
Drainage, water table and flooding
Share of Eckrant 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 3–25% (median 11%).
- Topsoil organic matter
- Median 6.5%.
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) | 95.5% |
| 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% |
| Not rated | 4.5% |
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 Eckrant (component kind "Series") in SSURGO: 1,906,593 acres.
- Method
- Shares are by mapped acres of Eckrant components. The profile comes from the single largest Eckrant component. Full methodology.