Oregon County, Missouri
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 Oregon County, Missouri.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Scholten-Poynor complex, 8 to 15 percent slopes | 44K | Moderately well drained | D | Very limited | Very limited |
| Scholten-Bendavis-Poynor complex, 8 to 15 percent slopes | 31K | Moderately well drained | D | Very limited | Very limited |
| Scholten-Poynor complex, 3 to 8 percent slopes | 27K | Moderately well drained | D | Very limited | Very limited |
| Alred very gravelly silt loam, 8 to 15 percent slopes | 26K | Well drained | C | Somewhat limited | Somewhat limited |
| Alred-Gatewood complex, 15 to 35 percent slopes, stony | 25K | Well drained | C | Very limited | Very limited |
| Fanchon-Tonti complex, 3 to 8 percent slopes | 25K | Well drained | B | Not limited | Somewhat limited |
| Clarksville-Bendavis complex, 15 to 35 percent slopes, stony | 24K | Somewhat excessively drained | A | Very limited | Very limited |
| Alred-Gatewood complex, 8 to 15 percent slopes | 24K | Well drained | D | Somewhat limited | Very limited |
| Clarksville very gravelly silt loam, 15 to 35 percent slopes, stony | 17K | Somewhat excessively drained | B | Very limited | Very limited |
| Tonti-Taterhill complex, 3 to 8 percent slopes | 15K | Moderately well drained | D | Very limited | Very limited |
| Alred very gravelly silt loam, 1 to 8 percent slopes | 13K | Well drained | C | Somewhat limited | Somewhat limited |
| Macedonia silt loam, 3 to 8 percent slopes | 11K | Well drained | D | Somewhat limited | Very limited |
| Alred extremely gravelly silt loam, 15 to 35 percent slopes | 11K | Well drained | C | Very limited | Very limited |
| Clarksville very gravelly silt loam, 3 to 8 percent slopes | 10K | Somewhat excessively drained | B | Not limited | Somewhat limited |
| Coulstone very gravelly sandy loam, 15 to 35 percent slopes, stony | 10K | Somewhat excessively drained | A | Very limited | Very limited |
| Captina silt loam, 3 to 8 percent slopes | 10K | Moderately well drained | C/D | Very limited | Very limited |
| Poynor-Scholten complex, 15 to 35 percent slopes | 9K | Well drained | B | Very limited | Very limited |
| Tilk very gravelly loam, 1 to 3 percent slopes, rarely flooded | 8K | Well drained | A | Very limited | Very limited |
| Clarksville very gravelly silt loam, 8 to 15 percent slopes | 8K | Somewhat excessively drained | A | Somewhat limited | Very limited |
| Alred-Ocie-Bendavis complex, 15 to 35 percent slopes, stony | 8K | Moderately well drained | C | Very limited | Very limited |
What This Means
Building & Foundations
About 67% of soils are rated "very limited" for dwellings with basements. Specific challenges include steep slopes, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 79% 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.