Lampasas County, Texas

Survey Area TX281 Texas

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 UnitAcresDrainageHydro GroupDwellingsSeptic
Brackett gravelly clay loam, 3 to 8 percent slopes 153K Well drainedDVery limitedVery limited
Lampasas gravelly clay, 1 to 5 percent slopes 39K Well drainedDVery limitedVery limited
Krum silty clay, cool, 1 to 5 percent slopes 27K Well drainedCVery limitedVery limited
Brackett-Rock outcrop complex, 10 to 30 percent slopes 26K Well drainedDVery limitedVery limited
Sunev loam, rarely flooded 17K Well drainedBVery limitedSomewhat limited
Real gravelly clay loam, 1 to 8 percent slopes 17K Well drainedDVery limitedVery limited
Nuff silty clay, 1 to 3 percent slopes 15K Well drainedCVery limitedVery limited
Real-Rock outcrop complex, 8 to 40 percent slopes 12K Well drainedDVery limitedVery limited
Roughcreek-Rock outcrop complex, 1 to 8 percent slopes 12K Well drainedDVery limitedVery limited
Nuff very stony silty clay loam, 2 to 6 percent slopes 11K Well drainedCVery limitedVery limited
Eckrant-Rock outcrop complex, 1 to 8 percent slopes, extremely stony 10K Well drainedDVery limitedVery limited
Cho gravelly loam, 1 to 3 percent slopes 10K Well drainedDVery limitedVery limited
Rumley silty clay loam, 1 to 3 percent slopes 9K Well drainedBSomewhat limitedSomewhat limited
Oakalla silty clay loam, 0 to 1 percent slopes, rarely flooded 8K Well drainedBVery limitedSomewhat limited
Topsey clay loam, 1 to 5 percent slopes 8K Well drainedCSomewhat limitedVery limited
Eckrant-Rock outcrop complex, 5 to 30 percent slopes, very stony 7K Well drainedDVery limitedVery limited
Oglesby silty clay, 0 to 3 percent slopes 7K Well drainedDVery limitedVery limited
Nocken fine sandy loam, 5 to 15 percent slopes, very stony 7K Well drainedCSomewhat limitedVery limited
Tarpley-Rock outcrop complex, 1 to 8 percent slopes, stony 6K Well drainedDVery limitedVery limited
Luckenbach clay loam, moist, 1 to 3 percent slopes 5K Well drainedCSomewhat limitedVery 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.

Mollisols
Fertile grassland soils with thick, dark topsoil. Among the best for agriculture, building, and gardening.
Inceptisols
Young but developing soils found in mountains and river terraces. Variable properties — check drainage and bedrock depth.
Alfisols
Moderately weathered forest soils with clay-enriched subsoil. Productive for agriculture, generally good for building and septic.

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.

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