Greer 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 Greer County, Oklahoma.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Grandmore and Grandfield loamy sands, 0 to 3 percent slopes | 24K | Moderately well drained | B | Somewhat limited | Very limited |
| Hollister silty clay loam, 0 to 1 percent slopes, moist | 21K | Well drained | D | Very limited | Very limited |
| Knoco soils and Rock outcrop, 12 to 40 percent slopes | 21K | Well drained | D | Very limited | Very limited |
| Westill clay loam, 1 to 3 percent slopes | 17K | Well drained | D | Very limited | Very limited |
| Vernon-Knoco complex, cool, 1 to 12 percent slopes | 13K | Well drained | D | Somewhat limited | Very limited |
| Cottonwood-Vinson-Rock outcrop complex, 1 to 8 percent slopes | 13K | Well drained | D | Very limited | Very limited |
| Knoco-Badland complex, dry, 1 to 12 percent slopes | 13K | Well drained | D | Very limited | Very limited |
| Spur clay loam, 0 to 1 percent slopes, occasionally flooded | 12K | Well drained | B | Very limited | Very limited |
| Hardeman-Southside-Arnett complex, 3 to 20 percent slopes | 11K | Well drained | A | Somewhat limited | Very limited |
| Springer and Devol loamy sands, 0 to 3 percent slopes | 11K | Well drained | A | Not limited | Very limited |
| Roark loam, 0 to 1 percent slopes | 10K | Well drained | C | Somewhat limited | Very limited |
| Beckman silty clay, 0 to 1 percent slopes, occasionally flooded | 9K | Moderately well drained | D | Very limited | Very limited |
| Tipton loam, 0 to 1 percent slopes | 8K | Well drained | B | Somewhat limited | Somewhat limited |
| Burford-Spikebox complex, 3 to 12 percent slopes | 8K | Well drained | C | Somewhat limited | Very limited |
| Madge fine sandy loam, 1 to 3 percent slopes | 7K | Well drained | B | Not limited | Very limited |
| Knoco, Rock outcrop, and Cottonwood soils, 2 to 20 percent slopes | 7K | Well drained | D | Very limited | Very limited |
| Eda sand, 3 to 8 percent slopes | 7K | Somewhat excessively drained | A | Not limited | Very limited |
| La Casa silty clay loam, 1 to 3 percent slopes | 7K | Well drained | C | Somewhat limited | Very limited |
| Grandfield loamy sand, 0 to 3 percent slopes | 7K | Well drained | B | Not limited | Very limited |
| Westola fine sandy loam, 0 to 1 percent slopes, occasionally flooded | 6K | Well drained | A | Very limited | Very limited |
What This Means
Building & Foundations
About 51% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 96% 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.