Columbia County, New York
The dominant drainage class is Somewhat excessively 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 Columbia County, New York.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Nassau channery silt loam, hilly, very rocky | 39K | Somewhat excessively drained | D | Very limited | Very limited |
| Nassau channery silt loam, rolling, very rocky | 37K | Somewhat excessively drained | D | Very limited | Very limited |
| Macomber-Taconic association, steep, very rocky | 22K | Well drained | C | Very limited | Very limited |
| Stockbridge silt loam, 8 to 15 percent slopes | 14K | Well drained | C | Somewhat limited | Very limited |
| Nassau channery silt loam, steep, very rocky | 14K | Somewhat excessively drained | D | Very limited | Very limited |
| Stockbridge silt loam, 15 to 25 percent slopes | 11K | Well drained | C | Very limited | Very limited |
| Taconic-Macomber association, very steep, very rocky | 11K | Somewhat excessively drained | D | Very limited | Very limited |
| Water | 10K | Not rated | Not rated | ||
| Macomber-Taconic association, strongly sloping, rocky | 9K | Well drained | C | Very limited | Very limited |
| Lanesboro-Monarda association, strongly sloping, very stony | 7K | Well drained | C | Very limited | Very limited |
| Blasdell channery loam, rolling | 7K | Well drained | A | Somewhat limited | Very limited |
| Lanesboro channery silt loam, steep, stony | 7K | Well drained | C | Very limited | Very limited |
| Manlius channery silt loam, 8 to 15 percent slopes | 7K | Somewhat excessively drained | C | Very limited | Very limited |
| Blasdell channery loam, 3 to 8 percent slopes | 7K | Well drained | A | Not limited | Very limited |
| Knickerbocker fine sandy loam, 0 to 3 percent slopes | 7K | Somewhat excessively drained | A | Not limited | Very limited |
| Fluvaquents-Udifluvents complex, frequently flooded | 7K | Poorly drained | A/D | Very limited | Very limited |
| Blasdell channery loam, 0 to 3 percent slopes | 7K | Well drained | A | Not limited | Very limited |
| Limerick silt loam | 6K | Poorly drained | B/D | Very limited | Very limited |
| Manlius channery silt loam, 3 to 8 percent slopes | 6K | Well drained | C | Very limited | Very limited |
| Pittstown silt loam, 8 to 15 percent slopes | 6K | Moderately well drained | C | Very limited | Very limited |
What This Means
Building & Foundations
About 78% 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, sandy or gravelly soils with low bearing capacity. A geotechnical assessment is recommended before building.
Septic Systems
About 95% of soils are rated "very limited" for septic absorption fields. The well-drained soils may actually drain too fast for standard leach fields, allowing effluent to reach groundwater. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.
Gardening & Agriculture
Soils tend to drain very quickly, meaning nutrients and water don't stick around long. Raised beds with amended soil, drip irrigation, and heavy mulching will give the best results. Compost is your best friend here — it improves water retention dramatically.