# Relationship history for MSHA mine 3609601

Current hierarchy: **Jose D Enriquez → Jose Danilo Enriquez Quarry → Hanjaras Quarry**

- 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:** James R. Hanjaras → Hanjaras Quarry; 2008-03-25 to 2011-04-25; source msha-controller-operator-history
- **controller_controls_mine:** James R  Hanjaras → Hanjaras Quarry; 2008-03-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James R  Hanjaras → James R. Hanjaras; 2008-03-25 to 2011-04-25; source msha-controller-operator-history
- **operator_operates_mine:** Mendoza Stone → Hanjaras Quarry; 2011-04-26 to 2015-05-27; source msha-controller-operator-history
- **controller_controls_mine:** Carlos R  Mendoza → Hanjaras Quarry; 2011-04-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carlos R  Mendoza → Mendoza Stone; 2011-04-26 to 2015-05-27; source msha-controller-operator-history
- **operator_operates_mine:** Jose Danilo Enriquez Quarry → Hanjaras Quarry; 2015-05-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jose D Enriquez → Hanjaras Quarry; 2015-05-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jose D Enriquez → Jose Danilo Enriquez Quarry; 2015-05-28 to current/open; source msha-controller-operator-history