Cotton County, Oklahoma
The dominant drainage class is Well drained and the dominant hydrologic group is D (very slow infiltration, high runoff). This report summarizes the major soil map units across the survey area to help you understand what to expect when buying, building, or gardening in Cotton County, Oklahoma.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Tillman-Foard complex, 1 to 3 percent slopes | 60K | Well drained | C | Very limited | Very limited |
| Foard silt loam, 0 to 1 percent slopes | 52K | Well drained | D | Very limited | Not limited |
| Vernon-Knoco complex, 3 to 12 percent slopes | 47K | Well drained | D | Very limited | Very limited |
| Zaneis-Huska complex, 1 to 3 percent slopes | 29K | Well drained | B | Not limited | Somewhat limited |
| Port clay loam, 0 to 1 percent slopes, occasionally flooded | 26K | Well drained | B | Very limited | Very limited |
| Vernon clay, 3 to 5 percent slopes | 24K | Well drained | D | Very limited | Very limited |
| Zaneis-Grainola-Lucien complex, 5 to 20 percent slopes | 16K | Well drained | D | Very limited | Very limited |
| Foard-Hinkle complex, 1 to 3 percent slopes | 14K | Moderately well drained | D | Very limited | Very limited |
| Lincoln loamy fine sand, 0 to 1 percent slopes, frequently flooded | 14K | Somewhat excessively drained | A | Very limited | Very limited |
| Port-Oscar complex, 0 to 1 percent slopes, occasionally flooded | 13K | Well drained | B | Very limited | Very limited |
| Port loam, 0 to 1 percent slopes, occasionally flooded | 12K | Well drained | B | Very limited | Very limited |
| Miller clay, 0 to 1 percent slopes, occasionally flooded | 12K | Moderately well drained | D | Very limited | Very limited |
| Port loam, 0 to 1 percent slopes, frequently flooded | 12K | Well drained | B | Very limited | Very limited |
| Zaneis loam, 1 to 3 percent slopes | 11K | Well drained | B | Somewhat limited | Somewhat limited |
| Water | 10K | D | Not rated | Not rated | |
| Foard-Hinkle complex, 0 to 1 percent slopes | 6K | Well drained | D | Very limited | Not limited |
| Lawton loam, 1 to 3 percent slopes | 6K | Well drained | C | Somewhat limited | Very limited |
| Tillman silt loam, 1 to 3 percent slopes | 5K | Well drained | C | Very limited | Very limited |
| Minco very fine sandy loam, 0 to 1 percent slopes | 5K | Well drained | B | Not limited | Somewhat limited |
| Eda and Tivoli soils, 3 to 12 percent slopes | 5K | Somewhat excessively drained | A | Somewhat limited | Very limited |
What This Means
Building & Foundations
About 82% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 70% of soils are rated "very limited" for septic absorption fields. Despite good drainage overall, limitations may stem from shallow bedrock, steep slopes, or seasonal conditions. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.
Gardening & Agriculture
Drainage is generally favorable for gardening. Adding compost and mulch will improve fertility and water retention. Test your soil's pH before planting — most vegetables prefer 6.0-7.0.