# Relationship history for MSHA mine 5001462

Current hierarchy: **Timothy A  Eddy → S & S General Contractors & Equipment Rental Inc → Sudnikovich Quarry**

- 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:** S & S General Contractors & Equipment Rental Inc → Sudnikovich Quarry; 1984-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John Roger  Sudnikovich → Sudnikovich Quarry; 1984-04-01 to 2008-08-17; source msha-controller-operator-history
- **controller_controls_operator:** John Roger  Sudnikovich → S & S General Contractors & Equipment Rental Inc; 1984-04-01 to 2008-08-17; source msha-controller-operator-history
- **controller_controls_mine:** Timothy A  Eddy → Sudnikovich Quarry; 2008-08-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy A  Eddy → S & S General Contractors & Equipment Rental Inc; 2008-08-18 to current/open; source msha-controller-operator-history