Okfuskee 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 Okfuskee County, Oklahoma.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Stephenville-Darnell-Gullied land complex, 3 to 8 percent slopes | 28K | Well drained | C | Somewhat limited | Very limited |
| Darnell-Stephenville complex, 3 to 12 percent slopes | 23K | Excessively drained | D | Very limited | Very limited |
| Niotaze-Bigheart-Rock outcrop complex, 3 to 15 percent slopes, very stony | 18K | Somewhat poorly drained | D | Very limited | Very limited |
| Eram-Coweta complex, 8 to 20 percent slopes | 18K | Moderately well drained | D | Very limited | Very limited |
| Endsaw-Hector complex, 12 to 30 percent slopes | 18K | Moderately well drained | D | Very limited | Very limited |
| Okemah-Pharoah-Parsons complex, 0 to 1 percent slopes | 15K | Somewhat poorly drained | D | Very limited | Very limited |
| Dennis, Eram and Pharoah soils, 1 to 8 percent slopes, severely eroded | 13K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Endsaw-Hector complex, 5 to 12 percent slopes | 12K | Moderately well drained | D | Very limited | Very limited |
| Coweta-Bates complex, 3 to 5 percent slopes | 12K | Well drained | D | Very limited | Very limited |
| Hector-Clearview complex, 3 to 5 percent slopes, very rocky | 11K | Well drained | D | Very limited | Very limited |
| Madill and Tullahassee soils, 0 to 1 percent slopes, frequently flooded | 11K | Well drained | B | Very limited | Very limited |
| Bartlesville-Bigheart complex, 1 to 5 percent slopes, very rocky | 10K | Moderately well drained | C | Very limited | Very limited |
| Yahola fine sandy loam, 0 to 1 percent slopes, occasionally flooded | 9K | Well drained | A | Very limited | Very limited |
| Verdigris silt loam, 0 to 1 percent slopes, frequently flooded | 9K | Well drained | B | Very limited | Very limited |
| Verdigris silt loam, 0 to 1 percent slopes, occasionally flooded | 9K | Well drained | B | Very limited | Very limited |
| Eram clay loam, 5 to 12 percent slopes | 9K | Moderately well drained | D | Very limited | Very limited |
| Pulaski and Tribbey soils, 0 to 1 percent slopes, frequently flooded | 8K | Well drained | B | Very limited | Very limited |
| Dennis silt loam, 3 to 5 percent slopes, eroded | 7K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Darnell-Stephenville complex, 3 to 5 percent slopes | 7K | Excessively drained | D | Very limited | Very limited |
| Eram silt loam, 3 to 5 percent slopes | 7K | Moderately well drained | D | Very limited | Very limited |
What This Means
Building & Foundations
About 88% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 100% 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
Well-drained soils on sloped terrain — good for most plants but watch for erosion. Terracing, contour planting, and mulching help retain moisture and topsoil. Drip irrigation is more effective than sprinklers on slopes.