Gasconade County, Missouri
The dominant drainage class is Moderately well drained and the dominant hydrologic group is C (slow infiltration, moderate 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 Gasconade County, Missouri.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Beemont gravelly silt loam, 15 to 35 percent slopes | 45K | Moderately well drained | C | Very limited | Very limited |
| Beemont gravelly silt loam, 3 to 15 percent slopes | 37K | Moderately well drained | C | Very limited | Very limited |
| Union silt loam, 3 to 8 percent slopes | 30K | Moderately well drained | C | Very limited | Very limited |
| Union silt loam, 3 to 8 percent slopes, eroded | 21K | Moderately well drained | D | Very limited | Very limited |
| Gatewood very gravelly silt loam, 15 to 35 percent slopes, stony | 18K | Moderately well drained | D | Very limited | Very limited |
| Gladden silt loam, 0 to 2 percent slopes, frequently flooded | 12K | Well drained | B | Very limited | Very limited |
| Wrengart silt loam, 8 to 15 percent slopes, eroded | 11K | Moderately well drained | C | Somewhat limited | Very limited |
| Coulstone very gravelly sandy loam, 15 to 35 percent slopes, stony | 11K | Somewhat excessively drained | A | Very limited | Very limited |
| Union silt loam, 8 to 15 percent slopes, eroded | 10K | Moderately well drained | C | Very limited | Very limited |
| Wrengart silt loam, 5 to 9 percent slopes | 10K | Moderately well drained | C | Somewhat limited | Very limited |
| Union silt loam, 1 to 3 percent slopes | 10K | Moderately well drained | D | Very limited | Very limited |
| Gatewood-Menfro complex, 20 to 35 percent slopes, bouldery | 9K | Moderately well drained | D | Very limited | Very limited |
| Moko-Rock outcrop complex, 15 to 50 percent slopes, very stony | 8K | Well drained | D | Very limited | Very limited |
| Jamesfin silt loam, 0 to 3 percent slopes, frequently flooded | 8K | Well drained | B | Very limited | Very limited |
| Wrengart-Gatewood complex, 14 to 35 percent slopes | 7K | Moderately well drained | D | Very limited | Very limited |
| Hartville silt loam, 1 to 3 percent slopes | 6K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Gladden silt loam, 1 to 3 percent slopes, frequently flooded | 6K | Well drained | B | Very limited | Very limited |
| Racoon silt loam, 0 to 3 percent slopes, rarely flooded | 6K | Poorly drained | C/D | Very limited | Very limited |
| Useful silt loam, 8 to 15 percent slopes, eroded | 5K | Moderately well drained | D | Somewhat limited | Very limited |
| Hartville silt loam, 3 to 8 percent slopes | 5K | Somewhat poorly drained | C/D | Very limited | Very limited |
What This Means
Building & Foundations
About 90% of soils are rated "very limited" for dwellings with basements. Specific challenges include 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
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.