Soil series profile

League soil series

League is a somewhat poorly drained soil with a clay surface, mapped on 232,939 acres in 6 counties in TX. Hydrologic group D.

#1505 by mapped area fine Oxyaquic Hapluderts (Vertisols)

Drainage class
Somewhat poorly drained
100% of mapped acres
Hydrologic group
D
92% of mapped acres
Typical topsoil pH
5.4
strongly acidic · range 5.4–5.8
Mapped area
233k
acres in 6 counties, 1 state

Typical League profile

Texture and pH by depth

Typical League soil profile by depth 0 in 20 in 40 in 60 in 0–6 in · Ap · pH 5.4 · 49% clay Clay 6–11 in · Bw · pH 5.6 · 47% clay Silty clay 11–36 in · Bss · pH 5.5 · 53% clay Clay 36–80 in · Bssg · pH 6.9 · 60% clay Clay
Depth to scale. More strongly shaded layers hold more clay. Horizon names are the soil survey's (A = topsoil, B = subsoil, C = parent material).
Show as a table
Typical League horizons (representative values)
Depth Texture pH Clay Sand Organic matter
0–6 in (Ap) Clay 5.4 49% 14% 2.1%
6–11 in (Bw) Silty clay 5.6 47% 8% 2.1%
11–36 in (Bss) Clay 5.5 53% 8% 1.2%
36–80 in (Bssg) Clay 6.9 60% 7% 0.4%

Representative values from the most extensive League map unit (League clay, 0 to 1 percent slopes, survey area TX623). Other map units of this series vary within the series range.

Hands holding dark garden soil
Stock photo for illustration, not a sample of this soil series. Credit on the Sources & method page.

What this means

What League soil means for gardens, lawns and septic systems

For gardens

Typical topsoil in League soils is strongly acidic: pH 5.4 (most land between 5.4 and 5.8). Most vegetables and lawn grasses do best around 6.0 to 7.0, so lime is often needed; blueberries, azaleas and rhododendrons like it as it is.

Clayey topsoil covers 92% of mapped League 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 clay (92% of mapped League acres).

100% of mapped League acres is somewhat poorly to very poorly drained, so soil stays soggy for long spells after rain and in wet seasons. Raised beds, plants that tolerate wet feet, and not working the soil while wet all help.

For lawns and yards

On 92% 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 92% of the acres in mapped League soils very limited, 0% somewhat limited and 0% not limited (8% 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.

Flooding is mapped on 20% of the acres (0% occasional, 0% frequent).

Only a licensed site evaluation or perc test at the actual lot decides whether a system is allowed and which design.

Generated from the mapped numbers above using fixed rules, not a site visit. See how these notes are written.

Where League soil is found

Mapped acres

League is mapped in Texas.

Counties with the most mapped League soil
County Acres Share of county land
Jefferson County, TX 81,261 13.5%
Chambers County, TX 78,970 20.5%
Liberty County, TX 35,565 4.7%
Harris County, TX 29,810 2.7%
Hardin County, TX 7,317 1.3%
Orange County, TX 17 0.0%

Septic absorption fields

NRCS rating, share of League acres

Not limited 0%
Somewhat limited 0%
Very limited 92%
Not rated 8%
Septic tank absorption field rating across mapped League acres. Scale 0 to 100% of mapped land.
Show as a table
Septic tank absorption field rating across mapped League acres.
CategoryShare of acres
Not limited0.0%
Somewhat limited0.0%
Very limited92.3%
Not rated7.7%

Drainage, water table and flooding

Share of League acres

Depth to seasonal high water table
About 2.9 feet (35 in) (median where reported).
Flooding
Mapped as flooding on 20% of acres (0% occasional, 0% frequent).
Slope
Typically 0–0% (median 0%).
Topsoil organic matter
Median 2.1%.

Drainage class

Excessively drained 0%
Somewhat excessively drained 0%
Well drained 0%
Moderately well drained 0%
Somewhat poorly drained 100%
Poorly drained 0%
Very poorly drained 0%
Drainage class across mapped League acres. Scale 0 to 100% of mapped land.
Show as a table
Drainage class across mapped League acres.
CategoryShare of acres
Excessively drained0.0%
Somewhat excessively drained0.0%
Well drained0.0%
Moderately well drained0.0%
Somewhat poorly drained100.0%
Poorly drained0.0%
Very poorly drained0.0%

Hydrologic soil group

A: fast infiltration (mostly sandy or gravelly) 0%
B: moderate infiltration 0%
C: slow infiltration 0%
D: very slow infiltration (clayey, shallow or wet) 92%
A/D: D as is, A if drained 0%
B/D: D as is, B if drained 0%
C/D: D as is, C if drained 0%
Not rated 8%
Hydrologic soil group across mapped League acres. Scale 0 to 100% of mapped land.
Show as a table
Hydrologic soil group across mapped League acres.
CategoryShare of acres
A: fast infiltration (mostly sandy or gravelly)0.0%
B: moderate infiltration0.0%
C: slow infiltration0.0%
D: very slow infiltration (clayey, shallow or wet)92.3%
A/D: D as is, A if drained0.0%
B/D: D as is, B if drained0.0%
C/D: D as is, C if drained0.0%
Not rated7.7%

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 League (component kind "Series") in SSURGO: 232,939 acres.
Method
Shares are by mapped acres of League components. The profile comes from the single largest League component. Full methodology.

Independent reference site. No government affiliation or endorsement.

Full narrative description: USDA Official Soil Series Description for League.