# Relationship history for MSHA mine 3003299

Current hierarchy: **Richard J  Riccelli → Syracuse Sand & Gravel LLC → AMBOY 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

- **controller_controls_mine:** Joseph  Riccelli et al → AMBOY PIT; 1997-05-21 to 2015-01-14; source msha-controller-operator-history
- **operator_operates_mine:** Syracuse Sand & Gravel LLC → AMBOY PIT; 1999-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joseph  Riccelli et al → Syracuse Sand & Gravel LLC; 1999-09-01 to 2015-01-14; source msha-controller-operator-history
- **controller_controls_operator:** Richard  Riccelli et al → Syracuse Sand & Gravel LLC; 1999-09-01 to 2015-01-14; source msha-controller-operator-history
- **controller_controls_mine:** Richard J  Riccelli → AMBOY 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