# Relationship history for MSHA mine 0801394

Current hierarchy: **James  Gallagher; Richard  Forvour → Precision Rock & Dredge → Malabar Rd Borrow Pit**

- 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:** Precision Rock & Dredge → Malabar Rd Borrow Pit; 2012-10-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Richard  Forvour et al → Malabar Rd Borrow Pit; 2012-10-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard  Forvour et al → Precision Rock & Dredge; 2012-10-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James  Gallagher et al → Precision Rock & Dredge; 2012-10-24 to current/open; source msha-controller-operator-history