# Relationship history for MSHA mine 4503767

Current hierarchy: **Jerad  Bender → Deschutes Aggregate and Recycling, Inc. → Waldrick Road Pit**

- 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:** Deschutes Aggregate and Recycling, Inc. → Waldrick Road Pit; 2017-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Nathan  Waunch → Waldrick Road Pit; 2017-03-01 to 2022-10-31; source msha-controller-operator-history
- **controller_controls_operator:** Nathan  Waunch → Deschutes Aggregate and Recycling, Inc.; 2017-03-01 to 2022-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Jerad  Bender → Waldrick Road Pit; 2022-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerad  Bender → Deschutes Aggregate and Recycling, Inc.; 2022-11-01 to current/open; source msha-controller-operator-history