# Relationship history for MSHA mine 1800825

Current hierarchy: **William  Peterson → Stormwater Management Solutions, LLC. → McConchie / Smokey Rock**

- 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:** Stormwater Management Solutions, LLC. → McConchie / Smokey Rock; 2026-03-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** William  Peterson → McConchie / Smokey Rock; 2026-03-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William  Peterson → Stormwater Management Solutions, LLC.; 2026-03-25 to current/open; source msha-controller-operator-history