Grayson County, Kentucky
The dominant drainage class is Moderately well drained and the dominant hydrologic group is C (slow infiltration, moderate 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 Grayson County, Kentucky.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Zanesville silt loam, 2 to 6 percent slopes | 36K | Moderately well drained | C | Very limited | Very limited |
| Sadler silt loam, 2 to 6 percent slopes | 30K | Moderately well drained | C/D | Very limited | Very limited |
| Zanesville silt loam, 6 to 12 percent slopes | 22K | Moderately well drained | C | Very limited | Very limited |
| Weikert-Ramsey-Gilpin stony complex, 20 to 30 percent slopes | 20K | Somewhat excessively drained | D | Very limited | Very limited |
| Weikert-Ramsey-Gilpin stony complex, 30 to 50 percent slopes | 17K | Somewhat excessively drained | D | Very limited | Very limited |
| Wellston silt loam, 6 to 12 percent slopes | 17K | Well drained | B | Somewhat limited | Somewhat limited |
| Gilpin silty clay loam, 12 to 20 percent slopes, severely eroded (frondorf) | 15K | Well drained | C | Very limited | Very limited |
| Gilpin silt loam, 12 to 20 percent slopes (frondorf) | 14K | Well drained | C | Very limited | Very limited |
| Weikert channery silt loam, 12 to 30 percent slopes | 12K | Somewhat excessively drained | D | Very limited | Very limited |
| Wellston silty clay loam, 6 to 12 percent slopes, severely eroded | 9K | Well drained | B | Somewhat limited | Somewhat limited |
| Gilpin silt loam, 6 to 12 percent slopes (frondorf) | 9K | Well drained | C | Somewhat limited | Very limited |
| Sadler silt loam, 0 to 2 percent slopes | 7K | Moderately well drained | C/D | Very limited | Very limited |
| Stendal silt loam, 0 to 2 percent slopes, occasionally flooded | 6K | Somewhat poorly drained | B/D | Very limited | Very limited |
| Clifty gravelly silt loam, 0 to 2 percent slopes, occasionally flooded | 5K | Well drained | A | Very limited | Very limited |
| Shelocta gravelly silt loam, 6 to 12 percent slopes | 5K | Well drained | B | Somewhat limited | Very limited |
| Water | 5K | Not rated | Not rated | ||
| Caneyville very rocky silty clay, 8 to 25 percent slopes, severely eroded | 5K | Well drained | C | Very limited | Very limited |
| Weikert-Ramsey-Gilpin stony complex, 20 to 30 percent slopes, severely eroded | 5K | Somewhat excessively drained | D | Very limited | Very limited |
| Caneyville silty clay, 6 to 20 percent slopes, severely eroded | 5K | Well drained | C | Very limited | Very limited |
| Wellston silty clay loam, 12 to 20 percent slopes, severely eroded | 5K | Well drained | B | Very limited | Very limited |
What This Means
Building & Foundations
About 81% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 87% 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.