# Relationship history for MSHA mine 4202098

Current hierarchy: **Jay  Harwood → Pacific West LLC → Portable Finlay 798 Trommel Screen**

- 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:** Pacific West LLC → Portable Finlay 798 Trommel Screen; 1994-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Val  Staker Et Al → Portable Finlay 798 Trommel Screen; 1994-05-01 to 2013-12-22; source msha-controller-operator-history
- **controller_controls_operator:** Val  Staker Et Al → Pacific West LLC; 1994-05-01 to 2013-12-22; source msha-controller-operator-history
- **controller_controls_operator:** Jay  Harwood Et Al → Pacific West LLC; 1994-05-01 to 2013-12-22; source msha-controller-operator-history
- **controller_controls_mine:** Jay  Harwood et al → Portable Finlay 798 Trommel Screen; 2013-12-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jay  Harwood et al → Pacific West LLC; 2013-12-23 to current/open; source msha-controller-operator-history