Calloway and Marshall Counties, Kentucky

Survey Area KY610 Kentucky

The dominant drainage class is Moderately 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 Calloway and Marshall Counties, Kentucky.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Grenada silt loam, 2 to 6 percent slopes, eroded 48K Moderately well drainedCVery limitedVery limited
Water 41K Not ratedNot rated
Purchase-Lax-Brandon complex, 6 to 12 percent slopes, severely eroded 32K Moderately well drainedDSomewhat limitedVery limited
Brandon silt loam, 12 to 20 percent slopes, eroded 30K Well drainedBVery limitedVery limited
Grenada silt loam, 4 to 6 percent slopes, severely eroded 23K Moderately well drainedDVery limitedVery limited
Brandon-Purchase-Lax complex, 12 to 20 percent slopes, severely eroded 22K Moderately well drainedDVery limitedVery limited
Lax-Loring-Feliciana complex, 2 to 12 percent slopes, eroded 21K Moderately well drainedDVery limitedVery limited
Grenada silt loam, 0 to 2 percent slopes 19K Moderately well drainedC/DVery limitedVery limited
Calloway-Kurk complex, 0 to 2 percent slopes 15K Somewhat poorly drainedC/DVery limitedVery limited
Collins-Iuka complex, 0 to 2 percent slopes, occasionally flooded 15K Moderately well drainedBVery limitedVery limited
Falaya silt loam, 0 to 2 percent slopes, frequently flooded 15K Somewhat poorly drainedB/DVery limitedVery limited
Brandon-Saffell-Smithdale complex, 20 to 35 percent slopes, eroded 12K Well drainedBVery limitedVery limited
Calloway silt loam, 2 to 6 percent slopes 11K Somewhat poorly drainedC/DVery limitedVery limited
Loring silt loam, 2 to 6 percent slopes, eroded 11K Moderately well drainedC/DVery limitedVery limited
Saffell-Smithdale-Brandon complex, 20 to 60 percent slopes 10K Well drainedBVery limitedVery limited
Brandon silt loam, 6 to 12 percent slopes, eroded 9K Well drainedBSomewhat limitedVery limited
Rosebloom and Bibb soils, 0 to 2 percent slopes, frequently flooded 9K Poorly drainedB/DVery limitedVery limited
Enville-Falaya complex, 0 to 2 percent slopes, occasionally flooded 8K Somewhat poorly drainedB/DVery limitedVery limited
Purchase-Lax-Brandon complex, 6 to 12 percent slopes, eroded 8K Moderately well drainedDSomewhat limitedVery limited
Collins-Iuka complex, 0 to 2 percent slopes, frequently flooded 8K Moderately well drainedCVery limitedVery limited

What This Means

Building & Foundations

About 75% of soils are rated "very limited" for dwellings with basements. Specific challenges include steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 88% 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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