# Relationship history for MSHA mine 4300585

Current hierarchy: **Alan J  Bourbeau; Kimberly A  Borbeau → BOURBEAU AGGREGATE LLC → BOURBEAU AGGREGATE LLC**

- 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:** Northeast Aggregate Corporation → BOURBEAU AGGREGATE LLC; 2002-09-23 to 2020-02-13; source msha-controller-operator-history
- **controller_controls_mine:** Ivan  Charbonneau → BOURBEAU AGGREGATE LLC; 2002-09-23 to 2013-08-28; source msha-controller-operator-history
- **controller_controls_operator:** Ivan  Charbonneau → Northeast Aggregate Corporation; 2002-09-23 to 2013-08-28; source msha-controller-operator-history
- **controller_controls_mine:** Marie  Charbonneau → BOURBEAU AGGREGATE LLC; 2013-08-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Marie  Charbonneau → Northeast Aggregate Corporation; 2013-08-29 to 2020-02-13; source msha-controller-operator-history
- **operator_operates_mine:** Bourbeau Aggregate LLC → BOURBEAU AGGREGATE LLC; 2020-02-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Alan J  Bourbeau et al → BOURBEAU AGGREGATE LLC; 2020-02-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alan J  Bourbeau et al → Bourbeau Aggregate LLC; 2020-02-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kimberly A  Borbeau et al → Bourbeau Aggregate LLC; 2020-02-14 to current/open; source msha-controller-operator-history