Iron-Washington Area, Utah, Parts of Iron, Kane, and Washington Counties
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 Iron-Washington Area, Utah, Parts of Iron, Kane, and Washington Counties.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Vennob-Bodacious-Rock outcrop association, 15 to 50 percent slopes | 59K | Well drained | D | Very limited | Very limited |
| Checkett-Rock outcrop complex, 8 to 25 percent slopes | 55K | Well drained | D | Very limited | Very limited |
| Sevy-Taylorsflat complex, 2 to 8 percent slopes | 44K | Well drained | C | Somewhat limited | Somewhat limited |
| Antelope Springs loam, 0 to 2 percent slopes | 40K | Well drained | D | Somewhat limited | Very limited |
| Taylorsflat loam, 2 to 5 percent slopes | 39K | Well drained | C | Not limited | Very limited |
| Chuska-Checkett gravelly loams, 8 to 25 percent slopes | 38K | Well drained | D | Very limited | Very limited |
| Hiko Peak gravelly sandy loam, 2 to 15 percent slopes | 37K | Well drained | B | Somewhat limited | Somewhat limited |
| Checkett-Rock outcrop complex, 5 to 40 percent slopes | 35K | Well drained | D | Very limited | Very limited |
| Escalante sandy loam, 0 to 5 percent slopes | 33K | Well drained | B | Not limited | Somewhat limited |
| Bullion-Antelope Springs complex, 0 to 2 percent slopes | 29K | Well drained | D | Very limited | Very limited |
| Syrett-Mudcree complex, 25 to 60 percent slopes | 24K | Well drained | C | Very limited | Very limited |
| Woodrow silty clay loam, saline, 0 to 2 percent slopes | 24K | Well drained | C | Somewhat limited | Very limited |
| Radec-Checkett association, 8 to 25 percent slopes | 23K | Well drained | D | Very limited | Very limited |
| Rob Roy extremely cobbly loam, 15 to 50 percent slopes | 23K | Well drained | C | Very limited | Very limited |
| Wales loam, 0 to 2 percent slopes | 21K | Well drained | C | Somewhat limited | Somewhat limited |
| Faim clay loam, 4 to 40 percent slopes | 21K | Well drained | C | Very limited | Very limited |
| Manselo-Antelope Springs silt loams, 0 to 2 percent slopes | 21K | Well drained | C | Somewhat limited | Very limited |
| Ocambee extremely cobbly loam, 25 to 40 percent slopes | 20K | Well drained | C | Very limited | Very limited |
| Garbo-Deerlodge complex, 2 to 8 percent slopes | 18K | Well drained | C | Not limited | Somewhat limited |
| Faim clay loam, 4 to 25 percent slopes | 18K | Well drained | C | Very limited | Very limited |
What This Means
Building & Foundations
About 55% 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 75% 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.