# Relationship history for MSHA mine 2003573

Current hierarchy: **Gerald  Arnsman; Susan  Arnsman → Arnsman Septic Service Inc. → Plant 1**

- 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:** Arnsman Septic Service Inc. → Plant 1; 2019-01-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gerald  Arnsman et al → Plant 1; 2019-01-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gerald  Arnsman et al → Arnsman Septic Service Inc.; 2019-01-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Susan  Arnsman et al → Arnsman Septic Service Inc.; 2019-01-03 to current/open; source msha-controller-operator-history