# Relationship history for MSHA mine 3002296

Current hierarchy: **Daniel R Gernatt Jr → Gernatt Asphalt Products Inc → CHAFFEE**

- 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:** United Sand & Gravel Inc → CHAFFEE; 1978-03-09 to 1980-07-07; source msha-controller-operator-history
- **controller_controls_mine:** John  Rakiecki → CHAFFEE; 1978-03-09 to 1980-07-07; source msha-controller-operator-history
- **controller_controls_operator:** John  Rakiecki → United Sand & Gravel Inc; 1978-03-09 to 1980-07-07; source msha-controller-operator-history
- **controller_controls_mine:** Dan  Gernatt Sr et al → CHAFFEE; 1979-11-01 to 2014-05-04; source msha-controller-operator-history
- **operator_operates_mine:** Gernatt Asphalt Products Inc → CHAFFEE; 1980-07-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dan  Gernatt Sr et al → Gernatt Asphalt Products Inc; 1980-07-08 to 2014-05-04; source msha-controller-operator-history
- **controller_controls_mine:** Daniel R Gernatt Jr et al → CHAFFEE; 2014-05-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Daniel R Gernatt Jr et al → Gernatt Asphalt Products Inc; 2014-05-05 to current/open; source msha-controller-operator-history