Search

← Mammoth Coal

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. Criteria—Haulage; general.

    violationRecord 9838257
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.1403-10(i)

  2. Preshift examination at fixed intervals.

    violationRecord 9838256
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.360(a)(1) · $5,574.00 proposed penalty

  3. Hazardous conditions and violations of mandatory health or safety standards; posting, correcting, and recording.

    violationRecord 9838255
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.363(a) · $5,574.00 proposed penalty

  4. Roof control plan.

    violationRecord 9838254
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.220(a)(1) · $755.00 proposed penalty

  5. Roof control plan.

    violationRecord 9837854
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.220(a)(1) · $755.00 proposed penalty

  6. Mine ventilation plan; submission and approval.

    violationRecord 9837853
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.370(a)(1) · $697.00 proposed penalty

  7. Protective clothing; requirements.

    violationRecord 9839013
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.1720(a) · Significant and substantial (S&S) · $3,736.00 proposed penalty

  8. Communication facilities; working sections; installation and maintenance requirements; audible or visual alarms.

    violationRecord 9839805
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.1600-2 · $592.00 proposed penalty

  9. Protection of trailing cables.

    violationRecord 9839804
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.606 · $151.00 proposed penalty

  10. Ventilation controls.

    violationRecord 9839803
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.333(b)(3) · $165.00 proposed penalty

  11. Condition and examination of firefighting equipment.

    violationRecord 9838887
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.1100-3 · $193.00 proposed penalty

  12. Roof control plan.

    violationRecord 9838886
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.220(a)(1) · $2,503.00 proposed penalty

  13. Approval of other fire suppression devices.

    violationRecord 9838671
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.1107-13(g) · $151.00 proposed penalty

  14. Approval of other fire suppression devices.

    violationRecord 9838670
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.1107-13(g) · $151.00 proposed penalty

  15. Fall of roof or back

    accidentRecord 220250630002
    ROAD FORK #52 MINE · 4609522

    Days away from work only

    Accident narrative

    Employee stated EE was installing a rib bolt when a piece of drawl rock measuring 32" long X 1" wide X 2" thick fell sticking EE in the face.

  16. Permissible electric face equipment; maintenance.

    violationRecord 9839012
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.503 · $504.00 proposed penalty

  17. Spot Inspections

    inspectionRecord F009F3D
    ROAD FORK #52 MINE · 4609522

    103(i) · 6.3 on-site hours reported

  18. Mine ventilation plan; submission and approval.

    violationRecord 9837736
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.370(a)(1) · $504.00 proposed penalty

  19. Power wires and cables; insulation and protection.

    violationRecord 9838877
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.517 · Significant and substantial (S&S) · $4,383.00 proposed penalty

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

    violationRecord 9838251
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.202(a) · Significant and substantial (S&S) · $2,503.00 proposed penalty

  21. Non-Fatal Accident Investigation

    inspectionRecord 6321847
    ROAD FORK #52 MINE · 4609522

    8.5 on-site hours reported

  22. Preshift examination at fixed intervals.

    violationRecord 9837847
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.360(f) · $592.00 proposed penalty

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

    violationRecord 9837846
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.202(a) · $226.00 proposed penalty

  24. Handtools (nonpowered)

    accidentRecord 220250550028
    ROAD FORK #52 MINE · 4609522

    Days away from work only

    Accident narrative

    While working on the right miner conveyor chain EE was using a 2lbs hammer to strike one of the conveyor links when a piece of metal entered the right eye. EE was wearing safety glasses, however the glasses became repositioned on the face slightly exposing the eye. The metal was surgically removed from the right eye.

  25. Electric equipment; examination, testing and maintenance.

    violationRecord 9839008
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.512 · $288.00 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.