An employee was working on a winch rope on a 650 scoop that was loaded with a shield, this shield was hit by another 650 scoop, causing the employee to be caught between the scoop EE was working on and the shield tip.
ACNR Holdings, Inc: 3 recorded fatalities controller
Watch this controller
Email me when a new MSHA incident is filed at any mine ACNR Holdings, Inc controls.
Armstrong Energy, Inc. discloses mines under this controller in its SEC Dodd-Frank Section 1503 (EX-95) mine-safety filings.
ⓘ
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.ⓘ
A Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.ⓘ
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.ⓘ
This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.| Year | total case rate | days-away | fatal |
|---|---|---|---|
| 2026 | 11.10 | 9.60 | 0.062 |
| 2025 | 9.89 | 8.67 | 0.000 |
| 2024 | 8.87 | 7.73 | 0.000 |
| 2023 | 7.30 | 6.42 | 0.000 |
| 2022 | 7.57 | 6.62 | 0.000 |
| 2021 | 7.29 | 6.47 | 0.025 |
| 2020 | 8.51 | 7.60 | 0.000 |
ⓘ
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.Respirable coal dust
ⓘ
Respirable coal dust and silica figures cover coal facilities. Dust compliance is measured against the current 1.5 mg/m3 standard; samples predating the 2014 standard are included, so compliance rates are a coarse historical signal.
Last sampled: 2026-08-20
ⓘ
Respirable coal dust and silica figures cover coal facilities. Dust compliance is measured against the current 1.5 mg/m3 standard; samples predating the 2014 standard are included, so compliance rates are a coarse historical signal.ⓘ
The excessive concentration value (ECV) is MSHA's own per-sample enforcement threshold, which builds in measurement uncertainty; a sample over its ECV can trigger a citation. The count covers only samples MSHA assigned an ECV.- CONTINUOUS MINER OPERATOR6,322
- SHUTTLE CAR OPERATOR (STANDARD SIDE)3,425
- ROOF BOLTER (MOUNTED) (RETURN SIDE)2,897
Silica (quartz)
Last sampled: 2026-08-14- CONTINUOUS MINER OPERATOR383
- SHUTTLE CAR OPERATOR (STANDARD SIDE)214
- ROOF BOLTER (TWIN HEAD) (RETURN SIDE)165
Noise
ⓘ
The share counts noise samples whose measured dose exceeded the 90 dBA permissible exposure limit. It describes the sampled workplace, not what reached the miner's ear: hearing conservation programs and the hearing protection worn during the shift are recorded separately and are not reflected here.
Last sampled: 2026-08-11
ⓘ
The share counts noise samples whose measured dose exceeded the 90 dBA permissible exposure limit. It describes the sampled workplace, not what reached the miner's ear: hearing conservation programs and the hearing protection worn during the shift are recorded separately and are not reflected here.- CONTINUOUS MINER OPERATOR185
- SHUTTLE CAR OPERATOR (STANDARD SIDE)143
- ROOF BOLTER (TWIN HEAD) (RETURN SIDE)100
ⓘ
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.- Settled 2,210 · 91%
- Stood as issued 20 · 1%
- Still open 209 · 9%
ⓘ
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.ⓘ
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.| Docket | Decision | Judge | Year | Proposed / upheld |
|---|---|---|---|---|
| SE 2025-0006 | Settlement | Simonton | 2025 | $203K → $118K |
| SE 2023-0164 | Settlement | Young | 2023 | $99K → $27K |
| SE 2024-0177 | Settlement | Young | 2025 | $97K → $55K |
| SE 2023-0106 | Settlement | McCarthy | 2023 | $89K → $25K |
| SE 2023-0111 | Settlement | Lewis | 2023 | $86K → $13K |
| WEVA 2023-0225 | Settlement | Paez | 2023 | $86K → $40K |
Top causes
- SLIP OR FALL OF PERSON 1 fatality · 321 non-fatal
- POWERED HAULAGE 1 fatality · 120 non-fatal
- FALL OF FACE/RIB/PILLAR/SIDE/HIGHWALL 1 fatality · 27 non-fatal
- HANDLING OF MATERIALS 679 non-fatal
- FALL OF ROOF OR BACK 357 non-fatal
- MACHINERY 218 non-fatal
Incident timeline
Operators under this controller
- Marshall County Coal Resources, Inc. 493
- Marion County Coal Resources, Inc. 183
- Ohio County Coal Resources, Inc. 143
- Harrison County Coal Resources, Inc. 120
- Crimson Oak Grove Resources LLC 43
- Muhlenberg County Coal Resources, Inc. 14
- Washington County Land Resources, Inc. 2
- Emery County Coal Resources, Inc. 1
- Ohio Valley Coal Resources, Inc. 1
Mines on record
Fatalities under this controller
3 recordedEmployee fell from 28 feet. On top of 400 conveyor belt on 5th floor of preparation plant. Fell to 4th floor.
An EE was fatally injured when coal and rock material fell from the mine rib while rib bolting, and pinned the injured against the continuous mining machine. The rock and coal material measured approximately 6.3'x3.2'x2.0'. The miner was trained in the task being performed.
Where ACNR Holdings, Inc stands on silica, penalties, and injury rate
MSHA's standard limits respirable silica to 50 micrograms per cubic metre, but MSHA publishes dust and quartz as separate files and never the silica figure itself. We derive it per sample, score it against the limit, and set the operator's injury rate against a benchmark built from the full MSHA operator record. With the 26-year penalty trail, contest posture, and fatality history. Delivered as a PDF with the underlying data as CSV.
The federal record itself stays free on this site. What costs money, and why.