# Relationship history for MSHA mine 2602279

Current hierarchy: **Jay  Smith → Las Vegas Paving Corp → Apex Landfill**

- 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:** Apex Aggregates → Apex Landfill; 1995-06-01 to 1997-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Environmental Technologies Of Nv Inc → Apex Landfill; 1995-06-01 to 1997-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Environmental Technologies Of Nv Inc → Apex Aggregates; 1995-06-01 to 1997-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Republic Environmental Technologies Of Nv Inc → Apex Landfill; 1997-09-01 to 1998-09-10; source msha-controller-operator-history
- **controller_controls_mine:** Republic Industries Inc → Apex Landfill; 1997-09-01 to 1998-09-10; source msha-controller-operator-history
- **controller_controls_operator:** Republic Industries Inc → Republic Environmental Technologies Of Nv Inc; 1997-09-01 to 1998-09-10; source msha-controller-operator-history
- **operator_operates_mine:** Las Vegas Paving Corp → Apex Landfill; 1998-09-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Robert L  Mendenhall → Apex Landfill; 1998-09-11 to 2018-06-02; source msha-controller-operator-history
- **controller_controls_operator:** Robert L  Mendenhall → Las Vegas Paving Corp; 1998-09-11 to 2018-06-02; source msha-controller-operator-history
- **controller_controls_mine:** Jay  Smith et al → Apex Landfill; 2018-06-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jay  Smith et al → Las Vegas Paving Corp; 2018-06-03 to current/open; source msha-controller-operator-history