ACNR Holdings, Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Face ventilation control devices.
Marion County Mine · 460143330 CFR 75.330(b)(2) · $313.00 proposed penalty
Protection from falls of roof, face and ribs.
Marion County Mine · 460143330 CFR 75.202(a) · Significant and substantial (S&S) · $7,084.00 proposed penalty
Accumulation of combustible materials.
Marion County Mine · 460143330 CFR 75.400 · $288.00 proposed penalty
Protection from falls of roof, face and ribs.
Marion County Mine · 460143330 CFR 75.202(a) · $288.00 proposed penalty
Other safeguards.
Marion County Mine · 460143330 CFR 75.1403 · $642.00 proposed penalty
Other safeguards.
Marion County Mine · 460143330 CFR 75.1403 · $642.00 proposed penalty
Protection from falls of roof, face and ribs.
OHIO COUNTY MINE · 460143630 CFR 75.202(a) · $177.00 proposed penalty
Escapeways; bituminous and lignite mines.
MARSHALL COUNTY MINE · 460143730 CFR 75.380(d)(7)(vii) · $818.00 proposed penalty
Escapeways; bituminous and lignite mines.
MARSHALL COUNTY MINE · 460143730 CFR 75.380(d)(7)(vii) · $818.00 proposed penalty
Refuge alternatives.
MARSHALL COUNTY MINE · 460143730 CFR 75.1506(h)(2) · $245.00 proposed penalty
Ventilation controls.
MARSHALL COUNTY MINE · 460143730 CFR 75.333(c)(3) · $151.00 proposed penalty
Criteria—Belt conveyors.
MARSHALL COUNTY MINE · 460143730 CFR 75.1403-5(g) · $151.00 proposed penalty
Ventilation controls.
MARSHALL COUNTY MINE · 460143730 CFR 75.333(h) · $151.00 proposed penalty
Accumulation of combustible materials.
MARSHALL COUNTY MINE · 460143730 CFR 75.400 · $288.00 proposed penalty
Fall of roof or back
MARSHALL COUNTY MINE · 4601437Accident only
Accident narrative
An unplanned roof fall occurred at 9/15/2025 at 8:19am at 12-30 wall 4-5 xc. The roof fall measured 15' long by 16'wide 10'high. The fall was dangered off and will be cleaned up.
Spot Inspections
Harrison County Mine · 4601318103(i) · 7.0 on-site hours reported
Electrical Technical Investigation
Marion County Mine · 46014334.0 on-site hours reported
Non-Injury Accident Investigation
MARSHALL COUNTY MINE · 46014378.5 on-site hours reported
Accumulation of combustible materials.
Harrison County Mine · 460131830 CFR 75.400 · $592.00 proposed penalty
Use of nonpermissible explosives and nonpermissible shot-firing units; approval by Health and Safety District Manager.
Harrison County Mine · 460131830 CFR 77.1909-1 · $151.00 proposed penalty
Protection from falls of roof, face and ribs.
MARSHALL COUNTY MINE · 460143730 CFR 75.202(b) · Significant and substantial (S&S) · $7,267.00 proposed penalty
Violation — cited standard not reported
MARSHALL COUNTY MINE · 4601437Other safeguards.
MARSHALL COUNTY MINE · 460143730 CFR 75.1403 · $883.00 proposed penalty
Ventilation controls.
MARSHALL COUNTY MINE · 460143730 CFR 75.333(h) · $151.00 proposed penalty
Investigation.
MARSHALL COUNTY MINE · 460143730 CFR 50.11(b) · $151.00 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.