A miner died when a highwall collapsed on the excavator the miner was operating.
Onyx Sterling Pit Metal/Non-Metal
Onyx Sterling Pit has $331K in proposed MSHA penalties and $308K outstanding across 1 contested dockets, plus health sampling and the full incident record.
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Email me when a new MSHA incident is filed at Onyx Sterling Pit.
- Fatalities
- 1
- Total incidents
- 2
- Years on record
- 2024–2026
- Latest incident
- Apr 2026
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This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.Onyx Sterling Pit has $331K in proposed MSHA penalties and $308K outstanding across 1 contested dockets.
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Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.ⓘ
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2025 Q4 | 9,596 | 0 | 0 | 0.0 |
| 2025 Q3 | 8,483 | 0 | 0 | 0.0 |
| 2025 Q2 | 7,559 | 1 | 0 | 132.3 |
| 2025 Q1 | 8,023 | 5 | 5 | 623.2 |
| 2024 Q4 | 8,470 | 2 | 0 | 236.1 |
| 2024 Q3 | 9,467 | 17 | 8 | 1795.7 |
| 2024 Q2 | 9,200 | 3 | 1 | 326.1 |
| 2024 Q1 | 9,020 | 6 | 1 | 665.2 |
Show 19 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q4 | 6,242 | 0 | 0 | 0.0 |
| 2023 Q3 | 7,740 | 0 | 0 | 0.0 |
| 2023 Q2 | 7,060 | 5 | 0 | 708.2 |
| 2023 Q1 | 6,712 | 4 | 1 | 595.9 |
| 2022 Q4 | 5,968 | 0 | 0 | 0.0 |
| 2022 Q3 | 5,702 | 0 | 0 | 0.0 |
| 2022 Q2 | 5,704 | 2 | 0 | 350.6 |
| 2022 Q1 | 1,484 | 2 | 0 | 1347.7 |
| 2021 Q4 | 2,690 | 0 | 0 | 0.0 |
| 2021 Q3 | 2,516 | 0 | 0 | 0.0 |
| 2021 Q2 | 2,157 | 0 | 0 | 0.0 |
| 2021 Q1 | 1,942 | 9 | 4 | 4634.4 |
| 2020 Q4 | 4,455 | 0 | 0 | 0.0 |
| 2020 Q3 | 4,325 | 6 | 1 | 1387.3 |
| 2020 Q2 | 4,545 | 0 | 0 | 0.0 |
| 2020 Q1 | 4,465 | 0 | 0 | 0.0 |
| 2019 Q4 | 3,939 | 0 | 0 | 0.0 |
| 2019 Q3 | 4,506 | 0 | 0 | 0.0 |
| 2019 Q2 | 3,280 | 3 | 1 | 914.6 |
Fatalities at this mine
1 recordedReportable incidents
1 on file (excluding fatalities above)2026 · 1 incident
EE had a knee injury that was exacerbated as EE was walking through the garage after putting oil canisters away in a conex box behind the garage. EE felt a tweak in EE's left knee as EE stepped. On Wednesday 4/8/26 at approx 1PM, this injury was reported to have happened at work, and that it originated while shoveling one month prior near the scalper screen.
The full compliance file on Onyx Sterling Pit
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.