# Relationship history for MSHA mine 0202852

Current hierarchy: **Lynn  Janis; Ron  Barnes → Enviroverde Llc → ENVIROVERDE MOHAVE PIT**

- 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:** Enviroverde Llc → ENVIROVERDE MOHAVE PIT; 1999-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lynn  Janis  et al → ENVIROVERDE MOHAVE PIT; 1999-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lynn  Janis  et al → Enviroverde Llc; 1999-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ron  Barnes  et al → Enviroverde Llc; 1999-11-01 to current/open; source msha-controller-operator-history