Nolan 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 Nolan County, Texas.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Oplin very gravelly clay loam, 1 to 8 percent slopes | 138K | Well drained | D | Very limited | Very limited |
| Pyron clay loam, 0 to 1 percent slopes | 48K | Well drained | C | Somewhat limited | Very limited |
| Dermott soils, 3 to 20 percent slopes | 29K | Well drained | D | Very limited | Very limited |
| Oplin-Rock outcrop association, hilly | 23K | Well drained | D | Very limited | Very limited |
| Shep loam, dry, 1 to 5 percent slopes | 22K | Well drained | B | Not limited | Somewhat limited |
| Lozier-Rock outcrop association, steep | 21K | Well drained | D | Very limited | Very limited |
| Volente-Gageby complex, 0 to 5 percent slopes | 18K | Well drained | C | Very limited | Very limited |
| Veal loam, 1 to 5 percent slopes | 16K | Well drained | B | Not limited | Somewhat limited |
| Kavett clay, 1 to 3 percent slopes | 16K | Well drained | D | Very limited | Very limited |
| Quinlan loam, 1 to 5 percent slopes | 14K | Well drained | D | Very limited | Very limited |
| Burson-Quinlan association, hilly | 14K | Well drained | D | Very limited | Very limited |
| Pyron clay loam, 1 to 3 percent slopes | 13K | Well drained | C | Somewhat limited | Very limited |
| Tarrant soils, dry, 1 to 8 percent slopes | 12K | Well drained | D | Very limited | Very limited |
| Sagerton clay loam, 1 to 3 percent slopes | 11K | Well drained | C | Somewhat limited | Very limited |
| Mereta clay loam, 1 to 3 percent slopes | 11K | Well drained | D | Very limited | Very limited |
| Sagerton clay loam, 0 to 1 percent slopes | 10K | Well drained | C | Somewhat limited | Very limited |
| Woodward loam, 1 to 3 percent slopes, warm | 10K | Well drained | C | Somewhat limited | Very limited |
| Roscoe clay, 0 to 1 percent slopes, rarely ponded | 10K | Moderately well drained | D | Very limited | Very limited |
| Woodward loam, 3 to 5 percent slopes, warm | 10K | Well drained | C | Somewhat limited | Very limited |
| Gageby clay loam, 0 to 1 percent slopes, occasionally flooded | 10K | Well drained | B | Very limited | Very limited |
What This Means
Building & Foundations
About 69% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 91% 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.