Pittsburg 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 Pittsburg County, Oklahoma.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Bengal-Clebit-Clearview complex, 5 to 30 percent slopes | 303K | Well drained | D | Very limited | Very limited |
| Talihina-Eram-Collinsville complex, 5 to 20 percent slopes | 77K | Moderately well drained | D | Very limited | Very limited |
| Bengal-Clebit-Rock outcrop complex, 30 to 60 percent slopes | 61K | Well drained | D | Very limited | Very limited |
| Rexor and Verdigris soils, 0 to 1 percent slopes, frequently flooded | 47K | Moderately well drained | B | Very limited | Very limited |
| Water | 44K | D | Not rated | Not rated | |
| Dennis-Pharoah-Eram complex, 3 to 5 percent slopes, severely eroded | 23K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Dennis loam, 3 to 5 percent slopes, eroded | 21K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Clebit-Clearview complex, 3 to 5 percent slopes | 20K | Well drained | D | Very limited | Very limited |
| Dennis loam, 1 to 3 percent slopes | 20K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Clearview fine sandy loam, 3 to 5 percent slopes, eroded | 18K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Clebit-Clearview complex, 3 to 8 percent slopes, severely eroded | 16K | Well drained | D | Very limited | Very limited |
| Parsons silt loam, 0 to 1 percent slopes | 16K | Somewhat poorly drained | D | Very limited | Very limited |
| Karma loamy fine sand, 3 to 8 percent slopes, severely eroded | 15K | Well drained | B | Not limited | Very limited |
| Cupco silt loam, 0 to 1 percent slopes, occasionally flooded | 13K | Very poorly drained | C/D | Very limited | Very limited |
| Bates-Coweta complex, 3 to 5 percent slopes | 11K | Well drained | C | Somewhat limited | Very limited |
| Larton loamy fine sand, 3 to 8 percent slopes | 11K | Well drained | A | Not limited | Very limited |
| Rexor silt loam, 0 to 1 percent slopes, occasionally flooded | 10K | Moderately well drained | B | Very limited | Very limited |
| Eram clay loam, 3 to 5 percent slopes | 9K | Moderately well drained | D | Very limited | Very limited |
| Endsaw-Hector-Clearview complex, 1 to 15 percent slopes, extremely stony | 9K | Moderately well drained | D | Very limited | Very limited |
| Parsons silt loam, 1 to 3 percent slopes | 8K | Somewhat poorly drained | D | Very limited | Very limited |
What This Means
Building & Foundations
About 89% 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 94% 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.