# Relationship history for MSHA mine 1103210

Current hierarchy: **Boral Limited → Boral CM Holdings, LLC → Jordan Grove CCW Fill Site**

- 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:** Headwaters Resources Inc → Jordan Grove CCW Fill Site; 2008-12-19 to 2017-05-06; source msha-controller-operator-history
- **controller_controls_mine:** Kirk A  Benson et al → Jordan Grove CCW Fill Site; 2008-12-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kirk A  Benson et al → Headwaters Resources Inc; 2008-12-19 to 2017-05-06; source msha-controller-operator-history
- **operator_operates_mine:** Boral CM Holdings, LLC → Jordan Grove CCW Fill Site; 2017-05-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Boral Limited → Jordan Grove CCW Fill Site; 2017-05-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Boral Limited → Boral CM Holdings, LLC; 2017-05-07 to current/open; source msha-controller-operator-history