# Relationship history for MSHA mine 4104745

Current hierarchy: **Jim  Parker; Zack  Parker → JP Environmental Recycling LLC → St Jo 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

- **operator_operates_mine:** JP Environmental Recycling LLC → St Jo Pit; 2008-08-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Zack  Parker et al → St Jo Pit; 2008-08-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Zack  Parker et al → JP Environmental Recycling LLC; 2008-08-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim  Parker et al → JP Environmental Recycling LLC; 2008-08-28 to current/open; source msha-controller-operator-history