# Relationship history for MSHA mine 4202671

Current hierarchy: **Jesse  McCourt → Waste and Water Logistics, LLC → WWL Portable**

- 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:** Waste and Water Logistics, LLC → WWL Portable; 2017-05-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jesse  McCourt → WWL Portable; 2017-05-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jesse  McCourt → Waste and Water Logistics, LLC; 2017-05-25 to current/open; source msha-controller-operator-history