Duck Valley Indian Reservation, Idaho and Nevada
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 Duck Valley Indian Reservation, Idaho and Nevada.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Wickahoney-Wagonbox complex, 2 to 8 percent slopes | 37K | Well drained | D | Very limited | Very limited |
| Hapgood-Littlemud-Dehana association | 23K | Well drained | C | Very limited | Very limited |
| Haploxeralfs-Durixeralfs-Rubble land complex, 20 to 50 percent slopes | 19K | Well drained | D | Very limited | Very limited |
| Deunah silt loam, 1 to 4 percent slopes, stony | 19K | Well drained | D | Very limited | Very limited |
| Cavanaugh-Sattley association, 15 to 40 percent slopes | 18K | Well drained | D | Very limited | Very limited |
| Rubble land-Deunah complex, 1 to 6 percent slopes | 14K | A | Not limited | Not limited | |
| Soonahbe-Thacker, dry complex, 1 to 4 percent slopes | 13K | Well drained | C | Somewhat limited | Very limited |
| Yatahoney-Blackleg complex, 4 to 20 percent slopes | 11K | Well drained | D | Very limited | Very limited |
| Bulake-Deunah complex, 2 to 25 percent slopes | 8K | Well drained | D | Very limited | Very limited |
| Cavanaugh-Obray association, 4 to 30 percent slopes | 7K | Well drained | D | Very limited | Very limited |
| Cotant-Tusel-Hackwood association | 6K | Well drained | D | Very limited | Very limited |
| Parkay-Wickahoney-Boulder Lake complex, 0 to 30 percent slopes | 6K | Well drained | C | Very limited | Very limited |
| Crooked Creek-Bear Lake complex, 0 to 2 percent slopes | 5K | Very poorly drained | C/D | Very limited | Very limited |
| Thacker-Soonahbe complex, 4 to 10 percent slopes | 5K | Well drained | D | Very limited | Very limited |
| Petan-Deunah-Hatpeak complex, 1 to 8 percent slopes | 4K | Well drained | D | Very limited | Very limited |
| Zola loam, 0 to 2 percent slopes | 4K | Moderately well drained | C | Very limited | Very limited |
| Soonahbe variant-Bulake complex, 2 to 15 percent slopes | 4K | Well drained | C | Very limited | Very limited |
| Burmah variant-Torney variant-Yatahoney complex, 0 to 2 percent slopes | 4K | Well drained | D | Very limited | Very limited |
| Moonstone-Earcree association, 20 to 45 percent slopes | 4K | Well drained | B | Very limited | Very limited |
| Wickahoney-Blackleg association, 2 to 30 percent slopes | 4K | Well drained | D | Very limited | Very limited |
What This Means
Building & Foundations
About 87% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 93% 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.