# Relationship history for MSHA mine 2103224

Current hierarchy: **Eric Charles  DeCook → Farmers Topsoil, Inc. → Wash 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Braaten Sand & Gravel Inc → Wash Plant; 2000-03-01 to 2016-02-02; source msha-controller-operator-history
- **controller_controls_mine:** Robert  Braaten → Wash Plant; 2000-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Braaten → Braaten Sand & Gravel Inc; 2000-03-01 to 2016-02-02; source msha-controller-operator-history
- **controller_controls_mine:** Eric Charles  DeCook → Wash Plant; 2013-07-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Farmers Topsoil, Inc. → Wash Plant; 2016-02-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eric Charles  DeCook → Farmers Topsoil, Inc.; 2016-02-03 to current/open; source msha-controller-operator-history