Soil series profile

Deandale soil series

Deandale is a moderately well drained soil with a silt loam surface, mapped on 90,821 acres in 4 counties in TX. Hydrologic group D.

#3802 by mapped area fine Vertic Paleustolls (Mollisols)

Drainage class
Moderately well drained
100% of mapped acres
Hydrologic group
D
100% of mapped acres
Typical topsoil pH
7.3
neutral · range 7.3–7.3
Mapped area
91k
acres in 4 counties, 1 state

Typical Deandale profile

Texture and pH by depth

Typical Deandale soil profile by depth 0 in 20 in 40 in 60 in 0–8 in · H1 · pH 7.3 · 23% clay Silt loam 8–80 in · H2 · pH 7.5 · 40% 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 Deandale horizons (representative values)
Depth Texture pH Clay Sand Organic matter
0–8 in (H1) Silt loam 7.3 23% 22% 2%
8–80 in (H2) Clay 7.5 40% 30% 0.75%

Representative values from the most extensive Deandale map unit (Deandale silt loam, 0 to 1 percent slopes, survey area TX009). 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 Deandale soil means for gardens, lawns and septic systems

For gardens

Typical topsoil in Deandale soils is neutral: pH 7.3, the range most vegetables, flowers and lawn grasses prefer.

Loamy topsoil (loam, silt loam and similar) covers 100% of mapped Deandale acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is silt loam (79% of mapped Deandale acres).

100% of mapped Deandale 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 Deandale 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.

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

Where Deandale soil is found

Mapped acres

Deandale is mapped in Texas.

Counties with the most mapped Deandale soil
County Acres Share of county land
Archer County, TX 41,221 7.1%
Wichita County, TX 29,860 7.7%
Clay County, TX 15,966 2.3%
Young County, TX 3,775 0.6%

Septic absorption fields

NRCS rating, share of Deandale acres

Not limited 0%
Somewhat limited 0%
Very limited 100%
Septic tank absorption field rating across mapped Deandale acres. Scale 0 to 100% of mapped land.
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Septic tank absorption field rating across mapped Deandale acres.
CategoryShare of acres
Not limited0.0%
Somewhat limited0.0%
Very limited100.0%

Drainage, water table and flooding

Share of Deandale 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 0–2% (median 0%).
Topsoil organic matter
Median 2%.

Drainage class

Excessively drained 0%
Somewhat excessively drained 0%
Well drained 0%
Moderately well drained 100%
Somewhat poorly drained 0%
Poorly drained 0%
Very poorly drained 0%
Drainage class across mapped Deandale acres. Scale 0 to 100% of mapped land.
Show as a table
Drainage class across mapped Deandale acres.
CategoryShare of acres
Excessively drained0.0%
Somewhat excessively drained0.0%
Well drained0.0%
Moderately well drained100.0%
Somewhat poorly drained0.0%
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) 100%
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%
Hydrologic soil group across mapped Deandale acres. Scale 0 to 100% of mapped land.
Show as a table
Hydrologic soil group across mapped Deandale 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)100.0%
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%

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 Deandale (component kind "Series") in SSURGO: 90,821 acres.
Method
Shares are by mapped acres of Deandale components. The profile comes from the single largest Deandale component. Full methodology.

Independent reference site. No government affiliation or endorsement.

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