# Relationship history for MSHA mine 3102191

Current hierarchy: **Ronnie G  Kirkpatrick Jr → Blue Water Sand & Gravel, Inc. → Blue Water Sand & Gravel, Inc.**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Mill Creek Mining Co., Inc. → Blue Water Sand & Gravel, Inc.; 2003-02-24 to 2006-10-01; source msha-controller-operator-history
- **controller_controls_mine:** Gary S  Johnson → Blue Water Sand & Gravel, Inc.; 2003-02-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary S  Johnson → Mill Creek Mining Co., Inc.; 2003-02-24 to 2006-10-01; source msha-controller-operator-history
- **controller_controls_mine:** Bert D  May → Blue Water Sand & Gravel, Inc.; 2004-11-15 to 2020-02-04; source msha-controller-operator-history
- **operator_operates_mine:** Mar Mac Aggregates, LLC → Blue Water Sand & Gravel, Inc.; 2006-10-02 to 2014-06-23; source msha-controller-operator-history
- **controller_controls_operator:** Bert D  May → Mar Mac Aggregates, LLC; 2006-10-02 to 2014-06-23; source msha-controller-operator-history
- **operator_operates_mine:** Blue Water Sand & Gravel, Inc. → Blue Water Sand & Gravel, Inc.; 2014-06-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Adrian Jack  Bailey → Blue Water Sand & Gravel, Inc.; 2014-06-24 to 2022-10-10; source msha-controller-operator-history
- **controller_controls_operator:** Adrian Jack  Bailey → Blue Water Sand & Gravel, Inc.; 2014-06-24 to 2022-10-10; source msha-controller-operator-history
- **controller_controls_mine:** Anthony  Broome et al → Blue Water Sand & Gravel, Inc.; 2020-02-05 to 2021-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Anthony  Broome et al → Mar Mac Aggregates, LLC; 2020-02-05 to 2014-06-23; source msha-controller-operator-history
- **controller_controls_operator:** Bert Deems  May et al → Mar Mac Aggregates, LLC; 2020-02-05 to 2014-06-23; source msha-controller-operator-history
- **controller_controls_operator:** Art  Cates et al → Mar Mac Aggregates, LLC; 2020-02-05 to 2014-06-23; source msha-controller-operator-history
- **controller_controls_mine:** Johnny  Barbee → Blue Water Sand & Gravel, Inc.; 2021-10-01 to 2025-02-13; source msha-controller-operator-history
- **controller_controls_operator:** Johnny  Barbee → Mar Mac Aggregates, LLC; 2021-10-01 to 2014-06-23; source msha-controller-operator-history
- **controller_controls_mine:** Ronnie G  Kirkpatrick Jr → Blue Water Sand & Gravel, Inc.; 2022-10-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ronnie G  Kirkpatrick Jr → Blue Water Sand & Gravel, Inc.; 2022-10-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Adan P Sanchez → Blue Water Sand & Gravel, Inc.; 2025-02-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Adan P Sanchez → Mar Mac Aggregates, LLC; 2025-02-14 to 2014-06-23; source msha-controller-operator-history