San Saba 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 San Saba County, Texas.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Roughcreek very stony clay loam, gently rolling | 185K | Well drained | D | Very limited | Very limited |
| Nocken-Callahan-Throck association, hilly | 100K | Well drained | C | Very limited | Very limited |
| Rumple gravelly clay loam, 1 to 8 percent slopes | 99K | Well drained | D | Very limited | Very limited |
| Eckrant-Rock outcrop complex, 5 to 30 percent slopes, very stony | 25K | Well drained | D | Very limited | Very limited |
| Sagerton clay loam, warm, 1 to 3 percent slopes | 22K | Well drained | C | Somewhat limited | Very limited |
| Winters fine sandy loam, 1 to 3 percent slopes | 20K | Well drained | C | Somewhat limited | Very limited |
| Eckrant stony clay, 1 to 8 percent slopes | 18K | Well drained | D | Very limited | Very limited |
| Bonti fine sandy loam, 1 to 5 percent slopes, moderately eroded | 18K | Well drained | C | Somewhat limited | Very limited |
| Frio silty clay loam, 0 to 2 percent slopes, occasionally flooded | 17K | Well drained | C | Very limited | Very limited |
| Leeray clay, 1 to 3 percent slopes | 16K | Well drained | D | Very limited | Very limited |
| Yates very flaggy fine sandy loam, 1 to 8 percent slopes, extremely stony | 14K | Well drained | D | Very limited | Very limited |
| Bonti fine sandy loam, 1 to 3 percent slopes | 12K | Well drained | C | Somewhat limited | Very limited |
| Sagerton clay loam, warm, 0 to 1 percent slopes | 12K | Well drained | C | Somewhat limited | Very limited |
| Cho loam, 0 to 8 percent slopes | 10K | Well drained | D | Very limited | Very limited |
| Speck-Cho complex, 1 to 5 percent slopes | 9K | Well drained | D | Very limited | Very limited |
| Bonti fine sandy loam, 3 to 5 percent slopes | 9K | Well drained | C | Somewhat limited | Very limited |
| Nuvalde clay loam, 1 to 3 percent slopes | 9K | Well drained | C | Somewhat limited | Very limited |
| Hye fine sandy loam, 1 to 5 percent slopes | 8K | Well drained | C | Very limited | Very limited |
| Pebblepoint-Rumple association, hilly | 8K | Well drained | C | Very limited | Very limited |
| Smithwick clay, hilly | 8K | Well drained | D | Very limited | Very limited |
What This Means
Building & Foundations
About 83% 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 100% 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.