# Relationship history for MSHA mine 0401036

Current hierarchy: **Donald W  Van Pelt → Clearlake Lava Inc → CLEARLAKE LAVA**

- 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:** Red Lava Products Of California → CLEARLAKE LAVA; 1950-01-01 to 1979-02-25; source msha-controller-operator-history
- **controller_controls_mine:** Red Lava Products Of California → CLEARLAKE LAVA; 1950-01-01 to 1979-02-25; source msha-controller-operator-history
- **controller_controls_operator:** Red Lava Products Of California → Red Lava Products Of California; 1950-01-01 to 1979-02-25; source msha-controller-operator-history
- **operator_operates_mine:** Clearlake Lava → CLEARLAKE LAVA; 1979-02-26 to 1994-07-14; source msha-controller-operator-history
- **controller_controls_mine:** Bill  Van Pelt → CLEARLAKE LAVA; 1979-02-26 to 1994-07-14; source msha-controller-operator-history
- **controller_controls_operator:** Bill  Van Pelt → Clearlake Lava; 1979-02-26 to 1994-07-14; source msha-controller-operator-history
- **operator_operates_mine:** Clearlake Lava Inc → CLEARLAKE LAVA; 1994-07-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Donald  Van Pelt  et al → CLEARLAKE LAVA; 1994-07-15 to 2020-03-11; source msha-controller-operator-history
- **controller_controls_operator:** Donald  Van Pelt  et al → Clearlake Lava Inc; 1994-07-15 to 2020-03-11; source msha-controller-operator-history
- **controller_controls_operator:** Beverly  Van Pelt  et al → Clearlake Lava Inc; 1994-07-15 to 2020-03-11; source msha-controller-operator-history
- **controller_controls_mine:** Donald W  Van Pelt → CLEARLAKE LAVA; 2020-03-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donald W  Van Pelt → Clearlake Lava Inc; 2020-03-12 to current/open; source msha-controller-operator-history