Rock County, Nebraska
The dominant drainage class is Excessively drained and the dominant hydrologic group is A (high infiltration, low 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 Rock County, Nebraska.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Valentine fine sand, rolling, 9 to 24 percent slopes, moist | 148K | Excessively drained | A | Somewhat limited | Very limited |
| Valentine-Els complex, moist, 0 to 9 percent slopes | 82K | Excessively drained | A | Not limited | Very limited |
| Els-Ipage complex, 0 to 3 percent slopes | 62K | Somewhat poorly drained | A | Very limited | Very limited |
| Valentine fine sand, 3 to 9 percent slopes, moist | 43K | Excessively drained | A | Not limited | Very limited |
| Els-Tryon complex, 0 to 3 percent slopes | 42K | Somewhat poorly drained | A | Very limited | Very limited |
| Valentine loamy fine sand, 3 to 9 percent slopes, moist | 39K | Excessively drained | A | Not limited | Very limited |
| Loup fine sandy loam, 0 to 1 percent slopes | 25K | Poorly drained | A/D | Very limited | Very limited |
| Valentine fine sand, rolling and hilly, 9 to 60 percent slopes , moist | 25K | Excessively drained | A | Somewhat limited | Very limited |
| Pivot loamy sand, 0 to 3 percent slopes | 19K | Somewhat excessively drained | A | Not limited | Very limited |
| Elsmere loamy fine sand, 0 to 3 percent slopes | 16K | Somewhat poorly drained | A | Very limited | Very limited |
| Tryon loamy fine sand, 0 to 3 percent slopes | 11K | Poorly drained | A/D | Very limited | Very limited |
| Els loamy sand, 0 to 3 percent slopes | 11K | Somewhat poorly drained | A | Very limited | Very limited |
| Pivot-Valentine complex, 0 to 9 percent slopes | 9K | Somewhat excessively drained | A | Not limited | Very limited |
| Simeon-Valentine sands, 11 to 60 percent slopes, eroded | 8K | Excessively drained | A | Very limited | Very limited |
| Els-Ipage-Tryon loamy sands, 0 to 6 percent slopes | 7K | Somewhat poorly drained | A | Very limited | Very limited |
| Valentine loamy fine sand, 0 to 3 percent slopes, moist | 6K | Excessively drained | A | Not limited | Very limited |
| Dunday loamy fine sand, 0 to 3 percent slopes, moist | 6K | Somewhat excessively drained | A | Not limited | Very limited |
| Labu-Sansarc silty clays, 9 to 35 percent slopes | 6K | Well drained | D | Very limited | Very limited |
| Boelus loamy sand, 0 to 3 percent slopes | 6K | Well drained | B | Somewhat limited | Somewhat limited |
| Simeon loamy sand, 0 to 3 percent slopes | 5K | Excessively drained | A | Not limited | Very limited |
What This Means
Building & Foundations
About 32% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
Septic Systems
About 99% 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.