Lampasas 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 Lampasas County, Texas.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Brackett gravelly clay loam, 3 to 8 percent slopes | 153K | Well drained | D | Very limited | Very limited |
| Lampasas gravelly clay, 1 to 5 percent slopes | 39K | Well drained | D | Very limited | Very limited |
| Krum silty clay, cool, 1 to 5 percent slopes | 27K | Well drained | C | Very limited | Very limited |
| Brackett-Rock outcrop complex, 10 to 30 percent slopes | 26K | Well drained | D | Very limited | Very limited |
| Sunev loam, rarely flooded | 17K | Well drained | B | Very limited | Somewhat limited |
| Real gravelly clay loam, 1 to 8 percent slopes | 17K | Well drained | D | Very limited | Very limited |
| Nuff silty clay, 1 to 3 percent slopes | 15K | Well drained | C | Very limited | Very limited |
| Real-Rock outcrop complex, 8 to 40 percent slopes | 12K | Well drained | D | Very limited | Very limited |
| Roughcreek-Rock outcrop complex, 1 to 8 percent slopes | 12K | Well drained | D | Very limited | Very limited |
| Nuff very stony silty clay loam, 2 to 6 percent slopes | 11K | Well drained | C | Very limited | Very limited |
| Eckrant-Rock outcrop complex, 1 to 8 percent slopes, extremely stony | 10K | Well drained | D | Very limited | Very limited |
| Cho gravelly loam, 1 to 3 percent slopes | 10K | Well drained | D | Very limited | Very limited |
| Rumley silty clay loam, 1 to 3 percent slopes | 9K | Well drained | B | Somewhat limited | Somewhat limited |
| Oakalla silty clay loam, 0 to 1 percent slopes, rarely flooded | 8K | Well drained | B | Very limited | Somewhat limited |
| Topsey clay loam, 1 to 5 percent slopes | 8K | Well drained | C | Somewhat limited | Very limited |
| Eckrant-Rock outcrop complex, 5 to 30 percent slopes, very stony | 7K | Well drained | D | Very limited | Very limited |
| Oglesby silty clay, 0 to 3 percent slopes | 7K | Well drained | D | Very limited | Very limited |
| Nocken fine sandy loam, 5 to 15 percent slopes, very stony | 7K | Well drained | C | Somewhat limited | Very limited |
| Tarpley-Rock outcrop complex, 1 to 8 percent slopes, stony | 6K | Well drained | D | Very limited | Very limited |
| Luckenbach clay loam, moist, 1 to 3 percent slopes | 5K | Well drained | C | Somewhat limited | Very limited |
What This Means
Building & Foundations
About 93% 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
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.