# Relationship history for MSHA mine 3002647

Current hierarchy: **D A Collins Construction Company Inc → JOINTA LIME COMPANY → COY RD QUARRY**

- 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

- **controller_controls_mine:** Peckham Industries Inc → COY RD QUARRY; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** W J Bokus Industries Inc → COY RD QUARRY; 1984-02-01 to 2001-03-18; source msha-controller-operator-history
- **controller_controls_mine:** W J  Bokus → COY RD QUARRY; 1984-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** W J  Bokus → W J Bokus Industries Inc; 1984-02-01 to 2001-03-18; source msha-controller-operator-history
- **controller_controls_mine:** D A Collins Construction Company Inc → COY RD QUARRY; 1991-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Peckham Materials Corp → COY RD QUARRY; 2001-03-19 to 2019-07-02; source msha-controller-operator-history
- **controller_controls_operator:** Peckham Industries Inc → Peckham Materials Corp; 2001-03-19 to 2019-07-02; source msha-controller-operator-history
- **operator_operates_mine:** JOINTA LIME COMPANY → COY RD QUARRY; 2019-07-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** D A Collins Construction Company Inc → JOINTA LIME COMPANY; 2019-07-03 to current/open; source msha-controller-operator-history