# Relationship history for MSHA mine 3002505

Current hierarchy: **Richard J  Riccelli → Syracuse Sand & Gravel Llc → HASTINGS MAIN 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:** Louis H Chauvin Inc → HASTINGS MAIN PIT; 1980-04-01 to 1997-05-20; source msha-controller-operator-history
- **controller_controls_mine:** Louis H  Chauvin → HASTINGS MAIN PIT; 1980-04-01 to 1997-05-20; source msha-controller-operator-history
- **controller_controls_operator:** Louis H  Chauvin → Louis H Chauvin Inc; 1980-04-01 to 1997-05-20; source msha-controller-operator-history
- **operator_operates_mine:** Syracuse Sand & Gravel Llc → HASTINGS MAIN PIT; 1997-05-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Richard  Riccelli et al → HASTINGS MAIN PIT; 1997-05-21 to 2015-01-14; source msha-controller-operator-history
- **controller_controls_operator:** Richard  Riccelli et al → Syracuse Sand & Gravel Llc; 1997-05-21 to 2015-01-14; source msha-controller-operator-history
- **controller_controls_operator:** Joseph  Riccelli et al → Syracuse Sand & Gravel Llc; 1997-05-21 to 2015-01-14; source msha-controller-operator-history
- **controller_controls_mine:** Richard J  Riccelli → HASTINGS MAIN PIT; 2015-01-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard J  Riccelli → Syracuse Sand & Gravel Llc; 2015-01-15 to current/open; source msha-controller-operator-history