# Relationship history for MSHA mine 3003139

Current hierarchy: **Town of Thurman-NY → Town Of Thurman Highway Dept. → Town of Thurman Landfill**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Town Of Thurman Highway Dept. → Town of Thurman Landfill; 1995-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Town of Thurman-NY → Town of Thurman Landfill; 1995-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Town of Thurman-NY → Town Of Thurman Highway Dept.; 1995-04-01 to current/open; source msha-controller-operator-history