# Relationship history for MSHA mine 0203330

Current hierarchy: **John  White; Dwayne  Watson → White Water Mining LLC → Portable Wash Plant #1**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** White Water Mining LLC → Portable Wash Plant #1; 2014-03-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John  White et al → Portable Wash Plant #1; 2014-03-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  White et al → White Water Mining LLC; 2014-03-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dwayne  Watson et al → White Water Mining LLC; 2014-03-27 to current/open; source msha-controller-operator-history