# Relationship history for MSHA mine 3003590

Current hierarchy: **Wendy S  Coon; Arvine  Coon Jr → A-W Coon & Sons Contracting → Blue Stores Sand & Gravel 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: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** A-W Coon & Sons Contracting → Blue Stores Sand & Gravel LLC; 2007-05-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Arvine  Coon Jr  et al → Blue Stores Sand & Gravel LLC; 2007-05-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Arvine  Coon Jr  et al → A-W Coon & Sons Contracting; 2007-05-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wendy S  Coon  et al → A-W Coon & Sons Contracting; 2007-05-07 to current/open; source msha-controller-operator-history