# Relationship history for MSHA mine 3608863

Current hierarchy: **Vogel Disposal Service Inc → Seneca Landfill, Inc. → Seneca Mine**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Seneca Landfill Inc → Seneca Mine; 2000-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Vogel Disposal Service Inc → Seneca Mine; 2000-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vogel Disposal Service Inc → Seneca Landfill Inc; 2000-07-01 to current/open; source msha-controller-operator-history