# Relationship history for MSHA mine 2003241

Current hierarchy: **Doug  Meekhof; Ray  Denhof → Lakeside Aggregate LLC → JD 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:** Allegan County Sand & Gravel Inc → JD Pit; 2002-04-08 to 2016-08-04; source msha-controller-operator-history
- **controller_controls_mine:** John  Van Dyke → JD Pit; 2002-04-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Van Dyke → Allegan County Sand & Gravel Inc; 2002-04-08 to 2016-08-04; source msha-controller-operator-history
- **controller_controls_mine:** Doug  Meekhof et al → JD Pit; 2008-09-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ross  Veltema et al → JD Pit; 2014-04-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Top Grade Site Management, LLC → JD Pit; 2016-08-05 to 2016-10-18; source msha-controller-operator-history
- **controller_controls_operator:** Ross  Veltema et al → Top Grade Site Management, LLC; 2016-08-05 to 2016-10-18; source msha-controller-operator-history
- **controller_controls_operator:** Thomas  Brink et al → Top Grade Site Management, LLC; 2016-08-05 to 2016-10-18; source msha-controller-operator-history
- **operator_operates_mine:** Allegan County Sand & Gravel Inc. → JD Pit; 2016-10-19 to 2019-09-30; source msha-controller-operator-history
- **controller_controls_operator:** John  Van Dyke → Allegan County Sand & Gravel Inc.; 2016-10-19 to 2019-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Lakeside Aggregate LLC → JD Pit; 2019-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Doug  Meekhof et al → Lakeside Aggregate LLC; 2019-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ray  Denhof et al → Lakeside Aggregate LLC; 2019-10-01 to current/open; source msha-controller-operator-history