Coal County, Oklahoma
The dominant drainage class is Moderately well drained and the dominant hydrologic group is C/D (varies with drainage). 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 Coal County, Oklahoma.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Homa-Hector complex, 12 to 20 percent slopes | 69K | Moderately well drained | C/D | Very limited | Very limited |
| Steedman-Coweta complex, 2 to 20 percent slopes | 25K | Moderately well drained | D | Very limited | Very limited |
| Dela and Wynona soils, 0 to 1 percent slopes, frequently flooded | 25K | Moderately well drained | A | Very limited | Very limited |
| Homa-Clearview complex, 3 to 5 percent slopes | 21K | Moderately well drained | C/D | Very limited | Very limited |
| Dennis loam, 3 to 5 percent slopes, eroded | 16K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Wynona silt loam, 0 to 1 percent slopes, occasionally flooded | 15K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Steedman clay loam, 3 to 5 percent slopes | 14K | Moderately well drained | D | Very limited | Very limited |
| Dennis loam, 1 to 3 percent slopes | 12K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Clearview fine sandy loam, 3 to 5 percent slopes | 11K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Parsons silt loam, 1 to 3 percent slopes | 10K | Somewhat poorly drained | D | Very limited | Very limited |
| Bates and Dennis soils, 3 to 5 percent slopes, severely eroded | 9K | Somewhat poorly drained | C | Very limited | Very limited |
| Wynona silty clay loam, 0 to 1 percent slopes, occasionally flooded | 8K | Somewhat poorly drained | C | Very limited | Very limited |
| Shidler-Rock outcrop complex, 5 to 30 percent slopes | 7K | Well drained | D | Very limited | Very limited |
| Bosville loam, 3 to 5 percent slopes | 7K | Moderately well drained | D | Very limited | Very limited |
| Bates-Coweta complex, 1 to 5 percent slopes | 7K | Well drained | D | Somewhat limited | Very limited |
| Clearview fine sandy loam, 3 to 5 percent slopes, eroded | 6K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Pharoah silt loam, 0 to 1 percent slopes | 5K | Somewhat poorly drained | D | Very limited | Very limited |
| Durant loam, 1 to 3 percent slopes | 5K | Moderately well drained | D | Very limited | Very limited |
| Dennis loam, 3 to 5 percent slopes | 5K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Bates fine sandy loam, 3 to 5 percent slopes, eroded | 5K | Well drained | C | Somewhat limited | Very limited |
What This Means
Building & Foundations
About 95% 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
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.