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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. Machinery and equipment; operation and maintenance.

    violationRecord 5134623
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.1725(c) · Significant and substantial (S&S)

  2. Permissible electric face equipment; maintenance.

    violationRecord 5134622
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.503

  3. Machinery

    accidentRecord 220262470028
    ROAD FORK #52 MINE · 4609522

    Days away from work only

    Accident narrative

    Employee was cleaning out the bottom of the drill pot with their left index finger, when their elbow hit the rotation lever causing the rotation to engage, fouling their finger inside the drill pot.

  4. Permanent splicing of trailing cables.

    violationRecord 5134621
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.604(b) · Significant and substantial (S&S)

  5. Accumulation of combustible materials.

    violationRecord 5134620
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.400

  6. Methane monitors.

    violationRecord 5134619
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.342(a)(4)

  7. Inspection of fire suppression devices.

    violationRecord 5134618
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.1107-16(b)

  8. Electric equipment; examination, testing and maintenance.

    violationRecord 5134617
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.512

  9. Clamping of trailing cables to equipment.

    violationRecord 5134616
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.605

  10. Roof control plan.

    violationRecord 5134615
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.220(a)(1) · Significant and substantial (S&S)

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

    violationRecord 5133896
    ROAD FORK #52 MINE · 4609522

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

  12. 103 (g) Written Notification Hazard Complaint Inspectio

    inspectionRecord F0307C0
    ROAD FORK #52 MINE · 4609522

    6.0 on-site hours reported

  13. Spot Inspections

    inspectionRecord F03604A
    ROAD FORK #52 MINE · 4609522

    103(i) · 4.5 on-site hours reported

  14. Temporary notations, revisions, and supplements.

    violationRecord 5094514
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.1202 · $151.00 proposed penalty

  15. Permissible electric face equipment; maintenance.

    violationRecord 5134614
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.503 · $592.00 proposed penalty

  16. Permanent splicing of trailing cables.

    violationRecord 5134613
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.604(b) · Significant and substantial (S&S) · $8,315.00 proposed penalty

  17. Electric equipment; examination, testing and maintenance.

    violationRecord 5134612
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.512 · $959.00 proposed penalty

  18. Violation — cited standard not reported

    violationRecord 5096688
    ROAD FORK #52 MINE · 4609522

    Significant and substantial (S&S) · $6,194.00 proposed penalty

  19. Loading and haulage equipment; operation.

    violationRecord 5134611
    ROAD FORK #52 MINE · 4609522

    30 CFR 77.1607(cc) · $226.00 proposed penalty

  20. Travelways at surface installations.

    violationRecord 5134610
    ROAD FORK #52 MINE · 4609522

    30 CFR 77.205(b) · $151.00 proposed penalty

  21. Preshift examination at fixed intervals.

    violationRecord 5134609
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.360(g) · $1,037.00 proposed penalty

  22. Spot Inspections

    inspectionRecord F036049
    ROAD FORK #52 MINE · 4609522

    103(i) · 5.5 on-site hours reported

  23. Mobile equipment; automatic warning devices.

    violationRecord 5026768
    Mammoth Coal Processing Pl & Riv Tipple · 4603317

    30 CFR 77.410(a)(1) · $151.00 proposed penalty

  24. Loading and haulage equipment; inspection and maintenance.

    violationRecord 5026767
    Mammoth Coal Processing Pl & Riv Tipple · 4603317

    30 CFR 77.1606(c) · $151.00 proposed penalty

  25. Roof control plan.

    violationRecord 5094513
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.220(a)(1) · $2,312.00 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.