Employee was breaking a sideline this process involves striking the wedges swinging the hammer with a side-to-side motion. While doing this the employee missed the wedge and struck the wall causing the hammer to deflect and rotated the employee rapidly causing a strain to the lower lumbar.
Keystone Blue Quarry Metal/Non-Metal
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- Fatalities
- 0
- Total incidents
- 4
- Years on record
- 2003–2025
- Latest incident
- Sep 2025
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2025 Q4 | 4,512 | 0 | 0 | 0.0 |
| 2025 Q3 | 5,879 | 0 | 0 | 0.0 |
| 2025 Q1 | 3,755 | 0 | 0 | 0.0 |
| 2024 Q2 | 4,670 | 0 | 0 | 0.0 |
| 2024 Q1 | 1,982 | 0 | 0 | 0.0 |
| 2023 Q4 | 2,561 | 0 | 0 | 0.0 |
| 2023 Q3 | 3,038 | 0 | 0 | 0.0 |
| 2022 Q3 | 4,047 | 0 | 0 | 0.0 |
Reportable incidents
4 on file2025 · 2 incidents
Miner was adding a section of drill steel using a wrench to tighten the connection. The miner's left thumb was caught between the drill boom and the wrench causing a small avulsion to the left thumb.
2004 · 1 incident
EE came to work on 3/10/04 complaining with pain in his right knee. He told supervisor he twisted his knee on Monday 3/08/04. There were no witnesses & EE had not mentioned any problems prior to this date.
2003 · 1 incident
EMPLOYEE BACKED TRUCK UNDER PAN. HE GOT OUT OF THE TRUCK TO PLACE PAN ONTO TRUCK. THE PAN BUMPED THE BACK OF THE TRUCK AND A STONE FELL FROM THE PAN ONTO HIS LEFT LEG.