Yakima Training Center, Parts of Kittitas and Yakima Counties, Washington
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 Yakima Training Center, Parts of Kittitas and Yakima Counties, Washington.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Benwy silt loam, 5 to 10 percent slopes | 10K | Well drained | B | Not limited | Somewhat limited |
| Vantage-Clerf complex, 15 to 30 percent slopes | 10K | Well drained | D | Very limited | Very limited |
| Zen-Marlic-Laric complex, 3 to 15 percent slopes | 10K | Well drained | D | Very limited | Very limited |
| Argabak very cobbly loam, 3 to 15 percent slopes | 7K | Well drained | D | Very limited | Very limited |
| Vantage-Clerf complex, 3 to 15 percent slopes | 7K | Well drained | D | Very limited | Very limited |
| Vantage very cobbly loam, thin, 3 to 15 percent slopes | 7K | Well drained | D | Very limited | Very limited |
| Selah silt loam, 2 to 5 percent slopes | 7K | Well drained | C | Somewhat limited | Very limited |
| Argabak-Horseflat complex, 3 to 15 percent slopes | 6K | Well drained | D | Very limited | Very limited |
| Benwy silt loam, 10 to 15 percent slopes | 6K | Well drained | B | Somewhat limited | Somewhat limited |
| Grinrod-Horseflat complex, 15 to 30 percent slopes | 6K | Well drained | C | Very limited | Very limited |
| Ralock-Palerf complex, 15 to 30 percent slopes | 5K | Well drained | C | Very limited | Very limited |
| Marlic-Zen-Laric complex, 3 to 15 percent slopes | 5K | Well drained | D | Very limited | Very limited |
| Brehm-Gorskel-Gorst complex, 10 to 15 percent slopes | 5K | Well drained | D | Very limited | Very limited |
| Selah silt loam, 5 to 10 percent slopes | 5K | Well drained | C | Somewhat limited | Very limited |
| Water | 5K | Not rated | Not rated | ||
| Vantage-Clerf complex, 30 to 45 percent slopes | 4K | Well drained | D | Very limited | Very limited |
| Argabak-Vantage complex, 3 to 15 percent slopes | 4K | Well drained | D | Very limited | Very limited |
| Vantage very cobbly loam, 3 to 15 percent slopes | 3K | Well drained | D | Very limited | Very limited |
| Laric-Zen complex, 3 to 15 percent slopes | 3K | Well drained | D | Very limited | Very limited |
| Zen-Benwy-Laric complex, 3 to 15 percent slopes | 3K | Well drained | C | Very limited | Very limited |
What This Means
Building & Foundations
About 72% 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.