Washington County, Nebraska — Mines
4 mines | 386 violations
| Mine | Type | Status | Violations | Penalties |
|---|---|---|---|---|
| Fort Calhoun Underground Mine | Underground | Active | 212 | $140K |
| Fort Calhoun Stone East Quarry | Surface | Abandoned | 173 | $51K |
| Rinker Materials Ft Calhoun West Quarry | Surface | Abandoned | 1 | $55 |