Irion County, Texas
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 Irion County, Texas.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Ector soils, moist, 1 to 8 percent slopes | 188K | Well drained | D | Very limited | Very limited |
| Angelo silty clay loam, 0 to 1 percent slopes | 65K | Well drained | C | Somewhat limited | Very limited |
| Angelo silty clay loam, 1 to 3 percent slopes | 63K | Well drained | C | Somewhat limited | Very limited |
| Noelke very cobbly silty clay loam, undulating | 46K | Well drained | D | Very limited | Very limited |
| Ector soils, moist, 3 to 30 percent slopes | 46K | Well drained | D | Very limited | Very limited |
| Cho gravelly loam, dry, 1 to 8 percent slopes | 43K | Well drained | D | Very limited | Very limited |
| Conger loam, 0 to 3 percent slopes | 41K | Well drained | D | Very limited | Very limited |
| Tarrant soils, dry, 1 to 8 percent slopes | 27K | Well drained | D | Very limited | Very limited |
| Rioconcho and Dev soils, 0 to 3 percent slopes, frequently flooded | 26K | Well drained | C | Very limited | Very limited |
| Nuvalde silty clay loam, dry, 1 to 3 percent slopes | 24K | Well drained | C | Somewhat limited | Very limited |
| Nuvalde silty clay loam, dry, 0 to 1 percent slopes | 22K | Well drained | C | Somewhat limited | Very limited |
| Mereta-Nuvalde complex, 1 to 3 percent slopes | 18K | Well drained | D | Very limited | Very limited |
| Rioconcho silty clay loam, 0 to 2 percent slopes, occasionally flooded | 17K | Well drained | C | Very limited | Very limited |
| Broome silt loam, 1 to 3 percent slopes | 15K | Well drained | B | Somewhat limited | Somewhat limited |
| Reagan silty clay loam, 1 to 3 percent slopes | 7K | Well drained | C | Not limited | Very limited |
| Mereta-Nuvalde complex, 0 to 1 percent slopes | 7K | Well drained | D | Very limited | Very limited |
| Reagan silty clay loam, moist, 0 to 1 percent slopes | 6K | Well drained | C | Not limited | Very limited |
| Blakeney and Spade fine sandy loams, undulating | 5K | Well drained | D | Very limited | Very limited |
| Broome silt loam, 0 to 1 percent slopes | 2K | Well drained | B | Somewhat limited | Somewhat limited |
| Broome silt loam, 3 to 5 percent slopes | 2K | Well drained | B | Somewhat limited | Somewhat limited |
What This Means
Building & Foundations
About 69% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 97% 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
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.