Oneida 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 Oneida County Area, Idaho.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Ridgecrest-Hymas association, 30 to 60 percent slopes | 39K | Well drained | C | Very limited | Very limited |
| Ridgecrest-Hondoho complex, 30 to 60 percent slopes | 30K | Well drained | C | Very limited | Very limited |
| Hondoho-Ridgecrest-Hades association, 12 to 50 percent slopes | 25K | Well drained | C | Very limited | Very limited |
| Hondoho-Hymas-Pavohroo association, 30 to 60 percent slopes | 23K | Well drained | B | Very limited | Very limited |
| Ireland-Calpac association, 30 to 60 percent slopes | 23K | Well drained | C | Very limited | Very limited |
| Arbone silt loam, 12 to 20 percent slopes | 20K | Well drained | B | Very limited | Very limited |
| Arbone-Hondoho-Cedarhill complex, 12 to 30 percent slopes | 18K | Well drained | B | Very limited | Very limited |
| Mellor-Freedom complex, 0 to 2 percent slopes | 17K | Well drained | C | Somewhat limited | Not limited |
| Ririe-Rexburg complex, 4 to 12 percent slopes | 16K | Well drained | B | Not limited | Somewhat limited |
| Arbone-Hondoho-Cedarhill complex, 4 to 12 percent slopes | 16K | Well drained | B | Not limited | Somewhat limited |
| Bayhook silt loam, 0 to 2 percent slopes | 15K | Well drained | C | Not limited | Very limited |
| Hutchley-Araveton-McCarey complex, 4 to 40 percent slopes | 14K | Well drained | D | Very limited | Very limited |
| Povey-Pavohroo association, 30 to 60 percent slopes | 13K | Well drained | B | Very limited | Very limited |
| Hymas-Calpac-Ireland association, 30 to 70 percent slopes | 11K | Well drained | D | Very limited | Very limited |
| Ridgecrest-Hondoho-Lizdale association, 30 to 60 percent slopes | 10K | Well drained | B | Very limited | Very limited |
| Copenhagen-Lonigan-Manila association, 12 to 50 percent slopes | 10K | Well drained | C | Very limited | Very limited |
| Hymas-Povey-Pavohroo association, 30 to 70 percent slopes | 10K | Well drained | D | Very limited | Very limited |
| Ridgecrest-Hondoho-Hymas association, 30 to 60 percent slopes | 9K | Well drained | C | Very limited | Very limited |
| Arbone silt loam, 4 to 12 percent slopes | 9K | Well drained | B | Not limited | Somewhat limited |
| Samaria-Pollynot complex, 4 to 12 percent slopes | 9K | Well drained | B | Not limited | Very limited |
What This Means
Building & Foundations
About 75% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes. A geotechnical assessment is recommended before building.
Septic Systems
About 82% 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.