# Relationship history for MSHA mine 0202928

Current hierarchy: **Arcosa, Inc → Southwest Rock Products → Kingman 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: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **controller_controls_mine:** DAVID M  DAY → Kingman Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Chris  Reinesch et al → Kingman Pit; 1999-06-01 to 2005-12-18; source msha-controller-operator-history
- **operator_operates_mine:** Day and Sons LLC → Kingman Pit; 2001-03-01 to 2005-10-02; source msha-controller-operator-history
- **controller_controls_operator:** DAVID M  DAY → Day and Sons LLC; 2001-03-01 to 2005-10-02; source msha-controller-operator-history
- **operator_operates_mine:** White Mountain Rock Products, LLC → Kingman Pit; 2005-10-03 to 2013-10-09; source msha-controller-operator-history
- **controller_controls_mine:** Steve J  Hood et al → Kingman Pit; 2005-10-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve J  Hood et al → White Mountain Rock Products, LLC; 2005-10-03 to 2013-10-09; source msha-controller-operator-history
- **controller_controls_operator:** Chris J  Reinesch et al → White Mountain Rock Products, LLC; 2005-10-03 to 2013-10-09; source msha-controller-operator-history
- **controller_controls_mine:** Chris J  Reinesch et al → Kingman Pit; 2005-12-19 to 2021-08-03; source msha-controller-operator-history
- **operator_operates_mine:** Southwest Rock Products → Kingman Pit; 2013-10-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chris J  Reinesch et al → Southwest Rock Products; 2013-10-10 to 2021-08-03; source msha-controller-operator-history
- **controller_controls_operator:** Steve J  Hood et al → Southwest Rock Products; 2013-10-10 to 2021-08-03; source msha-controller-operator-history
- **controller_controls_operator:** Chris  Reinesch et al → Southwest Rock Products; 2013-10-10 to 2005-12-18; source msha-controller-operator-history
- **controller_controls_operator:** Rochelle  Reinesch et al → Southwest Rock Products; 2013-10-10 to 2005-12-18; source msha-controller-operator-history
- **controller_controls_mine:** Arcosa, Inc → Kingman Pit; 2021-08-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Arcosa, Inc → Southwest Rock Products; 2021-08-04 to current/open; source msha-controller-operator-history