# Relationship history for MSHA mine 4703312

Current hierarchy: **Daniel  Lepke; Ruth  Lepke → Lepke Trucking & Excavating LLC → 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Lepke Trucking & Excavating LLC → Plant #1; 2002-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ruth  Lepke et al → Plant #1; 2002-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ruth  Lepke et al → Lepke Trucking & Excavating LLC; 2002-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Daniel  Lepke et al → Lepke Trucking & Excavating LLC; 2002-04-01 to current/open; source msha-controller-operator-history