Rich County, Utah
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 Rich County, Utah.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Water | 35K | D | Not rated | Not rated | |
| Solak gravelly loam, 10 to 50 percent slopes | 19K | Somewhat excessively drained | D | Very limited | Very limited |
| Kearl loam, 4 to 15 percent slopes | 18K | Well drained | B | Very limited | Very limited |
| Duckree gravelly silt loam, 15 to 40 percent slopes | 18K | Somewhat excessively drained | A | Very limited | Very limited |
| Pancheri silt loam, cool, 5 to 10 percent slopes | 17K | Well drained | A | Not limited | Not limited |
| Kearl-Richville, dry, complex, 4 to 15 percent slopes | 17K | Well drained | B | Very limited | Very limited |
| Woodpass loam, 2 to 8 percent slopes | 17K | Well drained | A | Not limited | Not limited |
| Bear Lake silt loam | 16K | Very poorly drained | C/D | Very limited | Very limited |
| Vanni loam, 10 to 30 percent slopes | 14K | Well drained | B | Very limited | Very limited |
| Cutoff gravelly loam, 25 to 60 percent slopes | 14K | Well drained | B | Very limited | Very limited |
| Cowco loam, 0 to 3 percent slopes | 13K | Well drained | C | Very limited | Very limited |
| Lariat fine sandy loam, 4 to 10 percent slopes | 13K | Well drained | B | Very limited | Very limited |
| Pancheri silt loam, cool, 1 to 5 percent slopes | 13K | Well drained | B | Not limited | Somewhat limited |
| Dagan gravelly loam, moist, 25 to 40 percent slopes | 13K | Well drained | B | Very limited | Very limited |
| Falula-Kearl complex, 4 to 25 percent slopes | 12K | Somewhat excessively drained | D | Very limited | Very limited |
| Solak-Ranruff-Rock outcrop complex, 30 to 60 percent slopes | 11K | Somewhat excessively drained | D | Very limited | Very limited |
| Bullnel loam, 15 to 30 percent slopes | 11K | Well drained | C | Very limited | Very limited |
| Zagg complex, 2 to 15 percent slopes | 11K | Well drained | C | Somewhat limited | Very limited |
| Lucky Star gravelly loam, 25 to 60 percent slopes | 11K | Well drained | B | Very limited | Very limited |
| Murphy-Richville, dry complex, 4 to 8 percent slopes | 11K | Well drained | C | Somewhat limited | Very limited |
What This Means
Building & Foundations
About 65% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 72% 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.