Lincoln County, Washington
The dominant drainage class is Well drained and the dominant hydrologic group is B (moderate infiltration). 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 Lincoln County, Washington.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Roloff-Bakeoven-Rock outcrop complex, 0 to 15 percent slopes | 157K | Well drained | C | Very limited | Very limited |
| Bagdad silt loam, 7 to 25 percent slopes | 156K | Well drained | B | Very limited | Very limited |
| Anders-Bakeoven-Rock outcrop complex, 0 to 15 percent slopes | 147K | Well drained | C | Very limited | Very limited |
| Renslow silt loam, 0 to 5 percent slopes | 81K | Well drained | B | Not limited | Somewhat limited |
| Bagdad silt loam, 0 to 7 percent slopes | 70K | Well drained | B | Not limited | Somewhat limited |
| Broadax silt loam, 7 to 25 percent slopes | 70K | Well drained | B | Very limited | Very limited |
| Renslow silt loam, 5 to 25 percent slopes | 68K | Well drained | B | Very limited | Very limited |
| Badge-Bakeoven-Rock outcrop complex, very steep | 54K | Well drained | B | Very limited | Very limited |
| Ritzville silt loam, 0 to 5 percent slopes | 53K | Well drained | B | Not limited | Somewhat limited |
| Hanning silt loam, 7 to 25 percent slopes | 43K | Well drained | B | Very limited | Very limited |
| Benco cobbly silt loam, 0 to 7 percent slopes | 37K | Well drained | A | Not limited | Very limited |
| Stratford gravelly silt loam, 0 to 15 percent slopes | 31K | Well drained | B | Not limited | Very limited |
| Strat very cobbly silt loam, 3 to 25 percent slopes | 30K | Well drained | B | Somewhat limited | Very limited |
| Willis silt loam, 5 to 25 percent slopes | 30K | Well drained | C | Very limited | Very limited |
| Tucannon-Rock outcrop complex, 0 to 15 percent slopes | 30K | Well drained | C | Very limited | Very limited |
| Benge silt loam, 0 to 15 percent slopes | 23K | Well drained | B | Not limited | Very limited |
| Ritzville silt loam, 5 to 25 percent slopes | 21K | Well drained | B | Very limited | Very limited |
| Bagdad-Endicott silt loams, 7 to 25 percent slopes | 21K | Well drained | B | Very limited | Very limited |
| Anders silt loam, 0 to 5 percent slopes | 19K | Well drained | C | Very limited | Very limited |
| Endicott silt loam, 5 to 25 percent slopes | 17K | Well drained | C | Very limited | Very limited |
What This Means
Building & Foundations
About 71% of soils are rated "very limited" for dwellings with basements. Specific challenges include 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.