# Relationship history for MSHA mine 3003557

Current hierarchy: **Steven E  Fuller → Steven E. Fuller Excavating, Inc. → Erin Trommel Screen Plant**

- 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:** Steven E. Fuller Excavating, Inc. → Erin Trommel Screen Plant; 2006-07-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Steven E  Fuller → Erin Trommel Screen Plant; 2006-07-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steven E  Fuller → Steven E. Fuller Excavating, Inc.; 2006-07-26 to current/open; source msha-controller-operator-history