# Relationship history for MSHA mine 2602870

Current hierarchy: **James M  Bradley → Pahrump Valley Aggregates, LLC → Adkisson 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:** Kenzevich Excavating, LLC → Adkisson Pit; 2021-02-04 to 2026-08-16; source msha-controller-operator-history
- **controller_controls_mine:** Donald L  Kenzevich → Adkisson Pit; 2021-02-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donald L  Kenzevich → Kenzevich Excavating, LLC; 2021-02-04 to 2026-08-16; source msha-controller-operator-history
- **operator_operates_mine:** Pahrump Valley Aggregates, LLC → Adkisson Pit; 2026-08-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James M  Bradley → Adkisson Pit; 2026-08-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James M  Bradley → Pahrump Valley Aggregates, LLC; 2026-08-17 to current/open; source msha-controller-operator-history