HomeSoil seriesGasil

Gasil soil series

Gasil soils cover 324,234 mapped acres, mostly in Texas and Oklahoma. USDA rates shrink-swell a limit for houses without basements on 0% of that land, and a shallow water table a limit for basements on 0%.

It is the leading soil series by area in 21 of the counties and cities on this site, including Johnston County, OK.

SSURGO survey versions to August 5, 2026 · series description revised 2017-01

0%

of its land: shrink-swell limits houses without basements

0%

of its land: a shallow water table limits basements

1.5%

median highest linear extensibility (6% and up is high)

25%

median highest clay content in the top 150 cm

USDA's description

The Gasil series consists of very deep, well drained, moderately permeable soils formed in deeply weathered loamy residuum derived from sandstones. These soils are on nearly level to strongly sloping uplands. Slopes range from 0 to 12 percent. Mean annual precipitation is about 940 mm (37 in) and the mean annual air temperature is about 17.8 degrees C (64 degrees F).

Source: USDA NRCS series description (OSD) for Gasil, revised 2017-01. Read it.

Engineering properties

Mapped area (SSURGO)324,234 acres
Shrink-swell limits houses without basements0.0%
Shallow water table limits basements0.0%
Very limited for septic absorption fields0.0%
Most common drainage classWell drained
Most common hydrologic soil groupB
Taxonomic classFine-loamy, siliceous, semiactive, thermic Ultic Paleustalfs
Type locationCooke County, Texas

Where Gasil is mapped

StateMapped acres
Texas252,436
Oklahoma71,798

Places where Gasil leads

Counties and cities where Gasil covers more mapped land than any other series.

Other places where Gasil is a main soil

Counties and cities where Gasil is among the six soil series covering the most mapped land, but not the first. Share of the place's mapped land.

Counties

Texas and Ohio cities

Sources

Shares and properties: USDA NRCS SSURGO via Soil Data Access, weighted by each component's share of its map units. Description: the USDA NRCS series description. How we count.