# Relationship history for MSHA mine 4003415

Current hierarchy: **Martin Marietta Materials Inc → Martin Marietta Southeast Agg Operations, LLC → Stones River 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Stones River Quarry, LLC. → Stones River Quarry; 2012-01-12 to 2021-12-30; source msha-controller-operator-history
- **controller_controls_mine:** Brad K Ward et al → Stones River Quarry; 2012-01-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brad K Ward et al → Stones River Quarry, LLC.; 2012-01-12 to 2021-12-30; source msha-controller-operator-history
- **controller_controls_operator:** Anna C Ward et al → Stones River Quarry, LLC.; 2012-01-12 to 2021-12-30; source msha-controller-operator-history
- **controller_controls_mine:** Blue Water Industries Holdings LLC → Stones River Quarry; 2017-12-29 to 2024-04-28; source msha-controller-operator-history
- **operator_operates_mine:** Blue Water Industries → Stones River Quarry; 2021-12-31 to 2025-05-12; source msha-controller-operator-history
- **controller_controls_operator:** Blue Water Industries Holdings LLC → Blue Water Industries; 2021-12-31 to 2024-04-28; source msha-controller-operator-history
- **controller_controls_mine:** Martin Marietta Materials Inc → Stones River Quarry; 2024-04-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Martin Marietta Materials Inc → Blue Water Industries; 2024-04-29 to 2025-05-12; source msha-controller-operator-history
- **controller_controls_mine:** Martin Marietta Materials Inc → Stones River Quarry; 2024-12-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Martin Marietta Southeast Agg Operations, LLC → Stones River Quarry; 2025-05-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Martin Marietta Materials Inc → Martin Marietta Southeast Agg Operations, LLC; 2025-05-13 to current/open; source msha-controller-operator-history