Yakima Nation Irrigated Area, Washington, Part of Yakima County
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 Yakima Nation Irrigated Area, Washington, Part of Yakima County.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Naches loam, 0 to 2 percent slopes | 19K | Well drained | B | Not limited | Somewhat limited |
| Ashue loam, 0 to 2 percent slopes | 19K | Well drained | C | Not limited | Not limited |
| Umapine silt loam | 13K | Somewhat poorly drained | C | Very limited | Very limited |
| Toppenish silt loam, 0 to 2 percent slopes | 12K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Warden silt loam, 0 to 2 percent slopes | 12K | Well drained | B | Not limited | Somewhat limited |
| Esquatzel silt loam, 0 to 2 percent slopes | 11K | Well drained | B | Not limited | Somewhat limited |
| Warden silt loam, 2 to 5 percent slopes | 10K | Well drained | B | Not limited | Somewhat limited |
| Kittitas silt loam | 8K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Warden silt loam, 5 to 8 percent slopes | 7K | Well drained | B | Not limited | Somewhat limited |
| Toppenish silty clay loam | 7K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Shano silt loam, 5 to 8 percent slopes | 6K | Well drained | B | Not limited | Somewhat limited |
| Onyx silt loam, 0 to 2 percent slopes | 5K | Well drained | B | Very limited | Very limited |
| Track loam | 5K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Ahtanum silt loam, 0 to 2 percent slopes | 5K | Somewhat poorly drained | D | Very limited | Very limited |
| Shano silt loam, 2 to 5 percent slopes | 4K | Well drained | B | Not limited | Somewhat limited |
| White Swan silt loam, 2 to 5 percent slopes | 4K | Well drained | C | Not limited | Somewhat limited |
| Weirman fine sandy loam, 0 to 2 percent slopes | 4K | Somewhat excessively drained | A | Very limited | Very limited |
| Weirman sandy loam | 3K | Somewhat excessively drained | A | Very limited | Very limited |
| Logy cobbly silt loam | 3K | Well drained | B | Very limited | Very limited |
| Warden silt loam, 8 to 15 percent slopes | 3K | Well drained | B | Somewhat limited | Somewhat limited |
What This Means
Building & Foundations
About 40% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
Septic Systems
About 40% of soils have significant septic limitations, while others are more suitable. A perc test is essential — conditions vary across the area.
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.