Lampasas County, Texas
The most common soil here is Brackett, on about 39% of the land: a paragravelly clay loam, firm and a little sticky. Lampasas and Krum come next.
About 99% of the land drains well.
USDA rates 90% of the land very limited for a standard septic drain field, and 89% very limited for homes with basements. That means extra cost or special design, not that it can't be done.
Worth knowing: bedrock lies within 40 inches under 72% of it.
Soils change over short distances, so look up an address below for the soil at that exact spot and the reasons behind each rating.
The soils you're most likely standing on
The biggest named soils in Lampasas County, Texas, each drawn five feet deep from its official USDA description, in its recorded colors.
Dots mark gravel; white flecks mark lime. Shares are by acres across the survey area, and each mapped patch usually mixes several of these soils.
The biggest mapped areas
The dominant drainage class is Well drained and the dominant hydrologic group is D (very slow infiltration, high runoff). The most common soil order is Mollisols — grassland soils with a thick, dark, fertile topsoil rich in organic matter. 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. Search your address to find the exact soil composition, drainage, and series details at your specific location.
| 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 |
Soil Orders in This Area
The USDA classifies every soil into one of 12 soil orders. Here are the dominant orders found in this survey area.
What This Means
Building & Foundations
About 89% 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 90% 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.