Canyon Area, Idaho
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 Canyon Area, Idaho.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Greenleaf-Owyhee silt loams, 0 to 1 percent slopes | 15K | Well drained | C | Not limited | Very limited |
| Power-Purdam silt loams, 0 to 1 percent slopes | 14K | Well drained | C | Not limited | Somewhat limited |
| Water | 14K | Not rated | Not rated | ||
| Elijah-Vickery silt loams, 3 to 7 percent slopes | 11K | Well drained | C | Somewhat limited | Very limited |
| Power silt loam, 0 to 1 percent slopes | 11K | Well drained | C | Not limited | Somewhat limited |
| Elijah-Chilcott silt loams, 1 to 3 percent slopes | 10K | Well drained | C | Somewhat limited | Very limited |
| Scism silt loam, 0 to 1 percent slopes | 8K | Well drained | C | Somewhat limited | Very limited |
| Baldock loam, 0 to 1 percent slopes | 8K | Somewhat poorly drained | C | Very limited | Very limited |
| Garbutt silt loam, 0 to 1 percent slopes | 8K | Well drained | B | Not limited | Somewhat limited |
| Nyssaton silt loam, 0 to 1 percent slopes | 8K | Well drained | C | Not limited | Very limited |
| Turbyfill fine sandy loam, 1 to 3 percent slopes | 8K | Well drained | A | Not limited | Not limited |
| Scism silt loam, 1 to 3 percent slopes | 7K | Well drained | C | Somewhat limited | Very limited |
| Nyssaton silt loam, 1 to 3 percent slopes | 7K | Well drained | C | Not limited | Very limited |
| Feltham loamy fine sand, 0 to 3 percent slopes | 7K | Somewhat excessively drained | A | Not limited | Not limited |
| Greenleaf-Owyhee silt loams, 1 to 3 percent slopes | 7K | Well drained | C | Not limited | Very limited |
| Cencove fine sandy loam, 1 to 3 percent slopes | 7K | Well drained | A | Not limited | Not limited |
| Moulton fine sandy loam, 0 to 1 percent slopes | 7K | Poorly drained | B | Very limited | Very limited |
| Minidoka-Scism silt loams, 3 to 7 percent slopes | 6K | Well drained | C | Somewhat limited | Very limited |
| Minidoka silt loam, 1 to 3 percent slopes | 6K | Well drained | C | Somewhat limited | Very limited |
| Power silt loam, 1 to 3 percent slopes | 6K | Well drained | C | Not limited | Somewhat 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 57% 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.