McIntosh 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 McIntosh County, Oklahoma.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Endsaw-Hector association, 12 to 20 percent slopes | 66K | Well drained | D | Very limited | Very limited |
| Water | 64K | D | Not rated | Not rated | |
| Linker-Hector complex, 3 to 5 percent slopes | 29K | Well drained | D | Very limited | Very limited |
| Taloka silt loam, 0 to 1 percent slopes | 24K | Somewhat poorly drained | D | Very limited | Very limited |
| Endsaw-Hector complex, 12 to 30 percent slopes, very rocky | 21K | Moderately well drained | D | Very limited | Very limited |
| Dennis-Verdigris complex, 0 to 8 percent slopes | 17K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Dennis silt loam, 1 to 3 percent slopes | 16K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Linker fine sandy loam, 3 to 5 percent slopes | 15K | Well drained | C | Very limited | Very limited |
| Taloka silt loam, 1 to 3 percent slopes | 15K | Somewhat poorly drained | D | Very limited | Very limited |
| Parsons silt loam, 0 to 1 percent slopes | 13K | Somewhat poorly drained | D | Very limited | Very limited |
| Verdigris silt loam, 0 to 1 percent slopes, frequently flooded | 13K | Well drained | B | Very limited | Very limited |
| Dennis silt loam, 3 to 5 percent slopes, eroded | 9K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Coweta-Talihina complex, 5 to 12 percent slopes | 8K | Well drained | D | Very limited | Very limited |
| Pharoah silt loam, 0 to 1 percent slopes | 8K | Somewhat poorly drained | D | Very limited | Very limited |
| Linker fine sandy loam, 1 to 3 percent slopes | 8K | Well drained | C | Very limited | Very limited |
| Bates loam, 1 to 3 percent slopes | 8K | Well drained | C | Somewhat limited | Very limited |
| Pharoah silt loam, 1 to 3 percent slopes, eroded | 7K | Somewhat poorly drained | D | Very limited | Very limited |
| Verdigris silt loam, 0 to 1 percent slopes, occasionally flooded | 7K | Well drained | B | Very limited | Very limited |
| Porum fine sandy loam, 3 to 5 percent slopes, eroded | 6K | Moderately well drained | D | Very limited | Very limited |
| Karma loamy fine sand, 3 to 8 percent slopes, gullied | 6K | Well drained | B | Not limited | Very limited |
What This Means
Building & Foundations
About 78% 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 82% 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.