Choteau-Conrad Area; Parts of Teton and Pondera Counties, Montana
The dominant drainage class is 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 Choteau-Conrad Area; Parts of Teton and Pondera Counties, Montana.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Scobey-Kevin clay loams, 0 to 4 percent slopes | 205K | Well drained | C | Somewhat limited | Very limited |
| Scobey-Kevin clay loams, 2 to 8 percent slopes | 148K | Well drained | C | Somewhat limited | Very limited |
| Rothiemay-Niart clay loams, 0 to 4 percent slopes | 40K | Well drained | C | Somewhat limited | Very limited |
| Niart-Crago gravelly loams, 0 to 4 percent slopes | 37K | Well drained | B | Not limited | Somewhat limited |
| Ethridge silty clay loam, 0 to 4 percent slopes | 36K | Well drained | C | Somewhat limited | Very limited |
| Niart gravelly loam, 0 to 4 percent slopes | 35K | Well drained | B | Not limited | Somewhat limited |
| Marias-Nunemaker complex, 0 to 4 percent slopes | 34K | Well drained | C | Very limited | Very limited |
| Delpoint-Cabbart-Rootel loams, 2 to 15 percent slopes | 30K | Well drained | C | Very limited | Very limited |
| Kevin-Hillon clay loams, 2 to 8 percent slopes | 27K | Well drained | C | Somewhat limited | Very limited |
| Ethridge clay loam, 0 to 4 percent slopes | 26K | Well drained | C | Somewhat limited | Very limited |
| Beanlake-Winspect cobbly loams, 2 to 15 percent slopes | 25K | Well drained | B | Somewhat limited | Very limited |
| Telstad-Joplin loams, 0 to 4 percent slopes | 23K | Well drained | C | Somewhat limited | Very limited |
| Windham gravelly loam, 0 to 4 percent slopes | 23K | Well drained | B | Not limited | Somewhat limited |
| Judith-Windham complex, 0 to 4 percent slopes | 22K | Well drained | B | Not limited | Very limited |
| Cabbart-Delpoint loams, 15 to 35 percent slopes | 22K | Well drained | D | Very limited | Very limited |
| Hillon-Kevin clay loams, 4 to 15 percent slopes | 22K | Well drained | C | Somewhat limited | Very limited |
| Delpoint-Rothiemay clay loams, 2 to 8 percent slopes | 21K | Well drained | C | Somewhat limited | Very limited |
| Water | 21K | Not rated | Not rated | ||
| Delpoint-Cabbart-Crago complex, 15 to 60 percent slopes | 20K | Well drained | C | Very limited | Very limited |
| Haploborolls-Argiborolls complex, 0 to 4 percent slopes, rarely flooded | 20K | Well drained | C | Somewhat limited | Very limited |
What This Means
Building & Foundations
Most soils are generally favorable for residential construction. Standard foundations are usually viable, though site-specific evaluation is always recommended.
Septic Systems
About 86% 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.