# Relationship history for MSHA mine 3004006

Current hierarchy: **Patrick  Remillard; Seana  Remillard → PERU SAND & GRAVEL LLC → WILMINGTON SAND & GRAVEL**

- 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

- **controller_controls_mine:** Seana  Remillard et al → WILMINGTON SAND & GRAVEL; 2014-06-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Peru Sand & Gravel LLC → WILMINGTON SAND & GRAVEL; 2017-11-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Seana  Remillard et al → Peru Sand & Gravel LLC; 2017-11-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patrick  Remillard et al → Peru Sand & Gravel LLC; 2017-11-17 to current/open; source msha-controller-operator-history