Blaine County 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 Blaine County Area, Idaho.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Friedman-Elksel-Winridge complex, 30 to 60 percent slopes | 54K | Well drained | C | Very limited | Very limited |
| Povey-Vitale association, 30 to 60 percent slopes | 36K | Well drained | B | Very limited | Very limited |
| Vitale-Povey association, 30 to 60 percent slopes | 34K | Well drained | C | Very limited | Very limited |
| Elksel-Friedman-Starhope complex, 30 to 60 percent slopes | 30K | Well drained | C | Very limited | Very limited |
| Elksel-Starhope-Rock outcrop complex, 30 to 60 percent slopes | 23K | Well drained | D | Very limited | Very limited |
| Vitale-Blackspar complex, 30 to 60 percent slopes | 19K | Well drained | C | Very limited | Very limited |
| Ketchum-Povey complex, 30 to 60 percent slopes | 19K | Well drained | B | Very limited | Very limited |
| Gooding-Gooding, eroded-Hamrub complex, 2 to 12 percent slopes | 19K | Well drained | D | Very limited | Very limited |
| Vitale-Milligan complex, 30 to 60 percent slopes | 18K | Well drained | C | Very limited | Very limited |
| Starhope-Peevywell-Smelter loams, 4 to 30 percent | 18K | Well drained | C | Very limited | Very limited |
| Moonstone-Earcree association, 30 to 60 percent slopes | 18K | Well drained | B | Very limited | Very limited |
| McCarey-Justesen-Rock outcrop complex, 2 to 15 percent slopes | 16K | Well drained | C | Very limited | Very limited |
| Elksel-Peevywell-Furshur complex, 30 to 60 percent slopes | 13K | Well drained | D | Very limited | Very limited |
| Balaam-Adamson-Riverwash complex, 0 to 2 percent slopes | 11K | Somewhat excessively drained | A | Very limited | Very limited |
| Muldoon-Peevywell loams, 2 to 15 percent slopes | 11K | Well drained | C | Somewhat limited | Very limited |
| Earcree-Moonstone association, 30 to 60 percent slopes | 11K | Well drained | A | Very limited | Very limited |
| Drage gravelly loam, cool, 2 to 15 percent slopes | 10K | Well drained | C | Somewhat limited | Very limited |
| Mulshoe-Gaib-Winu complex, 30 to 60 percent slopes | 9K | Well drained | C | Very limited | Very limited |
| Povey-Dollarhide complex, 30 to 60 percent slopes | 9K | Well drained | B | Very limited | Very limited |
| Mulshoe, very stony surface-Gaib, very stony surface-Rock outcrop complex, 4 to 30 percent slopes | 8K | Well drained | C | Very limited | Very limited |
What This Means
Building & Foundations
About 94% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, 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.