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Mammoth Coal safety activity

MSHA violations, accident reports and inspections across the current mine portfolio.

2025-01-01 – 2026-10-31Database snapshot · 2026-10-31

Safety activity

  1. Roof control plan.

    violationRecord 5096845
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.220(a)(1) · Significant and substantial (S&S) · $5,144.00 proposed penalty

  2. Accumulation of combustible materials.

    violationRecord 5096844
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.400 · $288.00 proposed penalty

  3. Mine ventilation plan; submission and approval.

    violationRecord 5096843
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.370(a)(1) · Significant and substantial (S&S) · $2,936.00 proposed penalty

  4. Main mine fan operation.

    violationRecord 5090968
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.311(f) · $4,383.00 proposed penalty

  5. Accumulation of combustible materials.

    violationRecord 5090967
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.400 · $642.00 proposed penalty

  6. Special Emphasis Programs

    inspectionRecord 6322949
    Mammoth Coal Processing Pl & Riv Tipple · 4603317

    1.5 on-site hours reported

  7. Spot Inspections

    inspectionRecord F001994
    ROAD FORK #52 MINE · 4609522

    103(i) · 4.5 on-site hours reported

  8. Methane monitors.

    violationRecord 5091127
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.342(a)(4) · $336.00 proposed penalty

  9. Permissible electric face equipment; maintenance.

    violationRecord 5096842
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.503 · $226.00 proposed penalty

  10. Accumulation of combustible materials.

    violationRecord 5096841
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.400 · $288.00 proposed penalty

  11. Electric equipment; examination, testing and maintenance.

    violationRecord 5096840
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.512 · $883.00 proposed penalty

  12. Mine ventilation plan; submission and approval.

    violationRecord 5096839
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.370(a)(1) · $818.00 proposed penalty

  13. Protection from falls of roof, face and ribs.

    violationRecord 5096838
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.202(a) · Significant and substantial (S&S) · $4,749.00 proposed penalty

  14. Power wires and cables; insulation and protection.

    violationRecord 5096837
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.517 · Significant and substantial (S&S) · $4,047.00 proposed penalty

  15. Protection from falls of roof, face and ribs.

    violationRecord 5090962
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.202(a) · Significant and substantial (S&S) · $3,184.00 proposed penalty

  16. Methane monitors.

    violationRecord 5090961
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.342(a)(4) · $1,219.00 proposed penalty

  17. Loading and haulage equipment; installations.

    violationRecord 5096836
    ROAD FORK #52 MINE · 4609522

    30 CFR 77.1605(d) · $226.00 proposed penalty

  18. Handtools (nonpowered)

    accidentRecord 220251950019
    ROAD FORK #52 MINE · 4609522

    Days away from work only

    Accident narrative

    Employee stated they were pulling draw rock with a slate bar, when a piece of draw rock measuring 40"long X 27"wide X 3" thick caught a pie pan flipping the rock over onto their right foot.

  19. Hoisting

    accidentRecord 220251900006
    ROAD FORK #52 MINE · 4609522

    Accident only

    Accident narrative

    Escape hoist malfunctioned for more than 30 minutes, no injuries, no mine emergency has occurred. Paul's Fan Repair, replaced the cable and repaired the hoist.

  20. Condition and examination of firefighting equipment.

    violationRecord 5096835
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.1100-3 · $398.00 proposed penalty

  21. Protection from falls of roof, face and ribs.

    violationRecord 5096834
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.202(a) · Significant and substantial (S&S) · $4,749.00 proposed penalty

  22. Escapeways; bituminous and lignite mines.

    violationRecord 5090960
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.380(d)(1) · Significant and substantial (S&S) · $9,757.00 proposed penalty

  23. Roof control plan.

    violationRecord 5090959
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.220(a)(1) · $697.00 proposed penalty

  24. Mining methods.

    violationRecord 5090958
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.203(e)(1) · $336.00 proposed penalty

  25. Spot Inspections

    inspectionRecord F009F54
    ROAD FORK #52 MINE · 4609522

    103(i) · 4.0 on-site hours reported

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.