HomeSoil seriesKamay
Kamay soil series
Kamay soils cover 212,648 mapped acres, almost all of them in Texas. USDA rates shrink-swell a limit for houses without basements on 89% of that land, and a shallow water table a limit for basements on 0%.
It is the leading soil series by area in 8 of the counties and cities on this site, including Wichita County, TX; Archer County, TX.
SSURGO survey versions to August 5, 2026
of its land: shrink-swell limits houses without basements
of its land: a shallow water table limits basements
median highest linear extensibility (6% and up is high)
median highest clay content in the top 150 cm
USDA's description
The Kamay series consists of very deep, well drained, slowly permeable soils that formed in clayey redbeds. These soils are on nearly level to very gently sloping uplands. Slopes range from 0 to 3 percent.
Source: USDA NRCS series description (OSD) for Kamay. Read it.
Engineering properties
| Mapped area (SSURGO) | 212,648 acres |
| Shrink-swell limits houses without basements | 89.5% |
| Shallow water table limits basements | 0.0% |
| Very limited for septic absorption fields | 100.0% |
| Most common drainage class | Well drained |
| Most common hydrologic soil group | D |
| Taxonomic class | Fine, smectitic, thermic Typic Paleustalfs |
| Type location | Wichita County, Texas |
Where Kamay is mapped
| State | Mapped acres |
|---|---|
| Texas | 212,648 |
Places where Kamay leads
Counties and cities where Kamay covers more mapped land than any other series.
| Place | Share of mapped land |
|---|---|
| Petrolia, TX | 66% |
| Jolly, TX | 65% |
| Holliday, TX | 43% |
| Windthorst, TX | 38% |
| Henrietta, TX | 23% |
| Wichita County, TX | 16% |
| Wichita Falls, TX | 15% |
| Archer County, TX | 11% |
Other places where Kamay is a main soil
Counties and cities where Kamay 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.