ACNR Holdings, Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Non-Injury Accident Investigation
MARSHALL COUNTY MINE · 46014375.0 on-site hours reported
Ventilation controls.
Harrison County Mine · 460131830 CFR 75.333(h) · $151.00 proposed penalty
Mechanical equipment guards.
Harrison County Mine · 460131830 CFR 75.1722(b) · Significant and substantial (S&S) · $959.00 proposed penalty
Accumulation of combustible materials.
Harrison County Mine · 460131830 CFR 75.400 · $398.00 proposed penalty
Hazardous conditions and violations of mandatory health or safety standards; posting, correcting, and recording.
Harrison County Mine · 460131830 CFR 75.363(a) · $193.00 proposed penalty
Accumulation of combustible materials.
Harrison County Mine · 460131830 CFR 75.400 · $398.00 proposed penalty
Maintenance of incombustible content of rock dust.
Harrison County Mine · 460131830 CFR 75.403 · $151.00 proposed penalty
Accumulation of combustible materials.
OHIO COUNTY MINE · 460143630 CFR 75.400 · $504.00 proposed penalty
Roof control plan.
OHIO COUNTY MINE · 460143630 CFR 75.220(a)(1) · $267.00 proposed penalty
Permissible electric face equipment; maintenance.
OHIO COUNTY MINE · 460143630 CFR 75.503 · $267.00 proposed penalty
Criteria—Belt conveyors.
MARSHALL COUNTY MINE · 460143730 CFR 75.1403-5(g) · $165.00 proposed penalty
Accumulation of combustible materials.
MARSHALL COUNTY MINE · 460143730 CFR 75.400 · Significant and substantial (S&S) · $4,047.00 proposed penalty
Protection from falls of roof, face and ribs.
MARSHALL COUNTY MINE · 460143730 CFR 75.202(a) · $226.00 proposed penalty
Operation of diesel-powered equipment.
MARSHALL COUNTY MINE · 460143730 CFR 75.1916(b) · Significant and substantial (S&S) · $697.00 proposed penalty
Criteria—Self-propelled personnel carriers.
MARSHALL COUNTY MINE · 460143730 CFR 75.1403-6(b)(3) · Significant and substantial (S&S) · $883.00 proposed penalty
Accumulation of combustible materials.
MARSHALL COUNTY MINE · 460143730 CFR 75.400 · $366.00 proposed penalty
Other safeguards.
MARSHALL COUNTY MINE · 460143730 CFR 75.1403 · $504.00 proposed penalty
Warning devices.
MARSHALL COUNTY MINE · 460143730 CFR 75.208 · $151.00 proposed penalty
Ventilation controls.
MARSHALL COUNTY MINE · 460143730 CFR 75.333(h) · $209.00 proposed penalty
Accumulation of combustible materials.
MARSHALL COUNTY MINE · 460143730 CFR 75.400 · $366.00 proposed penalty
Machinery
MARSHALL COUNTY MINE · 4601437Days away from work only
Accident narrative
Employee was running shearer when a rock came off the drum and struck EE's hand. Mining systems was not a factor, compliance with rules and regulations was not a factor. PPE was a factor.
Fall of roof or back
MARSHALL COUNTY MINE · 4601437Accident only
Accident narrative
An unplanned roof fall occurred on 5/4/26 at 8:22 am. The fall measured 16'by 40'long. The fall occurred in #6 entry 83 cross cut in 5 North. The area was posted on all sides and dangered off.
Spot Inspections
Marion County Mine · 4601433103(i) · 8.0 on-site hours reported
Mining methods.
OHIO COUNTY MINE · 460143630 CFR 75.203(b) · $245.00 proposed penalty
Air quality.
MARSHALL COUNTY MINE · 460143730 CFR 75.321(a)(1) · $755.00 proposed penalty
Sources and definitions
MSHA Violations (issue date), Accidents (accident date) and Inspections (begin date).
Violation titles use current CFR headings to identify the cited rule; they are not the inspector’s account of what happened.
Status is from the current MSHA Mines snapshot, not the selected reporting period. Closed records can retain their last reported controller/operator.
Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.
Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.
S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.
Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.
Portfolio totals use current mine membership, including events before the current owner or operator's tenure.