# Relationship history for MSHA mine 3609691

Current hierarchy: **Michael  Rich; Scott  Haines → Pottsville Materials, LLC → Pottsville Quarry**

- 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:** Pottsville Materials, LLC → Pottsville Quarry; 2008-12-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John R  Kibblehouse et al → Pottsville Quarry; 2008-12-16 to 2023-01-24; source msha-controller-operator-history
- **controller_controls_operator:** John R  Kibblehouse et al → Pottsville Materials, LLC; 2008-12-16 to 2023-01-24; source msha-controller-operator-history
- **controller_controls_operator:** John B  Haines IV et al → Pottsville Materials, LLC; 2008-12-16 to 2023-01-24; source msha-controller-operator-history
- **controller_controls_mine:** Michael  Rich et al → Pottsville Quarry; 2023-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Rich et al → Pottsville Materials, LLC; 2023-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott  Haines et al → Pottsville Materials, LLC; 2023-01-25 to current/open; source msha-controller-operator-history