# Relationship history for MSHA mine 0405460

Current hierarchy: **Lafarge North America Inc.; Richard O DeAtley; Neal  DeAtley → West Coast Aggregates Inc → GREEN 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

- **controller_controls_mine:** Eucon Corporation → GREEN PIT; 1989-12-15 to 2008-10-05; source msha-controller-operator-history
- **operator_operates_mine:** West Coast Aggregates Inc → GREEN PIT; 2001-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eucon Corporation → West Coast Aggregates Inc; 2001-03-01 to 2008-10-05; source msha-controller-operator-history
- **controller_controls_mine:** Neal  DeAtley et al → GREEN PIT; 2008-10-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Neal  DeAtley et al → West Coast Aggregates Inc; 2008-10-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard O DeAtley et al → West Coast Aggregates Inc; 2008-10-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lafarge North America Inc. et al → West Coast Aggregates Inc; 2008-10-06 to current/open; source msha-controller-operator-history