Custer 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 Custer County, Oklahoma.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Quinlan-Woodward complex, 5 to 12 percent slopes | 135K | Well drained | D | Very limited | Very limited |
| St. Paul silt loam, 1 to 3 percent slopes | 56K | Well drained | C | Somewhat limited | Very limited |
| Carey and Woodward soils, 3 to 5 percent slopes | 46K | Well drained | B | Not limited | Very limited |
| Carey silt loam, 1 to 3 percent slopes | 44K | Well drained | B | Not limited | Somewhat limited |
| Woodward silt loam, 5 to 8 percent slopes | 36K | Well drained | C | Somewhat limited | Very limited |
| Woodward-Quinlan complex, 3 to 5 percent slopes | 32K | Well drained | C | Somewhat limited | Very limited |
| Clairemont silt loam, 0 to 1 percent slopes, occasionally flooded, cool | 28K | Well drained | B | Very limited | Very limited |
| St. Paul and Carey soils, 3 to 5 percent slopes | 27K | Well drained | C | Somewhat limited | Very limited |
| Cordell-Rock outcrop complex, 1 to 20 percent slopes | 26K | Somewhat excessively drained | D | Very limited | Very limited |
| Dale silt loam, 0 to 1 percent slopes, rarely flooded | 24K | Well drained | B | Very limited | Somewhat limited |
| Quinlan and Woodward soils, 3 to 8 percent slopes, severely eroded | 17K | Well drained | D | Very limited | Very limited |
| Pond Creek silt loam, 0 to 1 percent slopes | 16K | Well drained | B | Somewhat limited | Somewhat limited |
| Lucien-Rock outcrop complex, 5 to 20 percent slopes | 15K | Well drained | D | Very limited | Very limited |
| Pond Creek fine sandy loam, 1 to 3 percent slopes | 11K | Well drained | C | Somewhat limited | Very limited |
| St. Paul silt loam, 0 to 1 percent slopes | 9K | Well drained | C | Somewhat limited | Very limited |
| Water | 9K | D | Not rated | Not rated | |
| Lovedale fine sandy loam, 1 to 3 percent slopes | 8K | Well drained | B | Not limited | Very limited |
| Pond Creek silt loam, 1 to 3 percent slopes | 8K | Well drained | B | Somewhat limited | Somewhat limited |
| Grant loam, 3 to 5 percent slopes | 8K | Well drained | B | Not limited | Somewhat limited |
| Woodward-Clairemont complex, 0 to 12 percent slopes | 8K | Well drained | C | Somewhat limited | Very limited |
What This Means
Building & Foundations
About 43% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
Septic Systems
About 80% 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.