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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. Loading and haulage equipment; inspection and maintenance.

    violationRecord 5092633
    ROAD FORK #52 MINE · 4609522

    30 CFR 77.1606(c) · $398.00 proposed penalty

  2. Escapeway maps.

    violationRecord 5098265
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.1505(b) · $151.00 proposed penalty

  3. Escapeways; bituminous and lignite mines.

    violationRecord 5098264
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.380(d)(4) · $177.00 proposed penalty

  4. Mining machines, cap lamps; requirements.

    violationRecord 5098263
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.1719-4(b) · $177.00 proposed penalty

  5. Electric equipment; examination, testing and maintenance.

    violationRecord 5098262
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.512 · $336.00 proposed penalty

  6. Other safeguards.

    violationRecord 5096950
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.1403

  7. Spot Inspections

    inspectionRecord F017F3B
    ROAD FORK #52 MINE · 4609522

    103(i) · 5.3 on-site hours reported

  8. Roof control plan.

    violationRecord 5091164
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.220(a)(1) · $1,320.00 proposed penalty

  9. Roof control plan.

    violationRecord 5098261
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.220(a)(1) · $2,936.00 proposed penalty

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

    violationRecord 5098260
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.202(a) · Significant and substantial (S&S) · $18,504.00 proposed penalty

  11. Identification of circuit breakers.

    violationRecord 5098259
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.904 · $1,320.00 proposed penalty

  12. Hazard training.

    violationRecord 5096949
    ROAD FORK #52 MINE · 4609522

    30 CFR 48.11(e) · Significant and substantial (S&S) · $23,525.00 proposed penalty

  13. Electric equipment; examination, testing and maintenance.

    violationRecord 5096948
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.512 · $1,126.00 proposed penalty

  14. Condition and examination of firefighting equipment.

    violationRecord 5096947
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.1100-3 · $226.00 proposed penalty

  15. Mine ventilation plan; submission and approval.

    violationRecord 5096946
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.370(a)(1) · Significant and substantial (S&S) · $3,736.00 proposed penalty

  16. Condition and examination of firefighting equipment.

    violationRecord 5096945
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.1100-3 · $226.00 proposed penalty

  17. Mine ventilation plan; submission and approval.

    violationRecord 5096944
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.370(a)(1) · $755.00 proposed penalty

  18. Availability of approved self-rescue devices; instruction in use and location.

    violationRecord 5096943
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.1714(b) · $2,133.00 proposed penalty

  19. Multi-gas detectors.

    violationRecord 5096942
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.1714-7(a) · Significant and substantial (S&S) · $2,133.00 proposed penalty

  20. Powered haulage

    accidentRecord 220253170315
    ROAD FORK #52 MINE · 4609522

    Days away from work only

    Accident narrative

    Employee was asleep while riding on #7 diesel mantrip, when the operator moved over to the right to allow clearance for a pick-up truck to pass. Employee's foot was caught between a jersey barrier and canopy post.

  21. Spot Inspections

    inspectionRecord F017F3A
    ROAD FORK #52 MINE · 4609522

    103(i) · 8.0 on-site hours reported

  22. Electric equipment; examination, testing and maintenance.

    violationRecord 5098427
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.512 · $336.00 proposed penalty

  23. Cable fittings; suitability.

    violationRecord 5098426
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.515 · $432.00 proposed penalty

  24. Verbal Hazard Complaint Inspections

    inspectionRecord F00E4C0
    ROAD FORK #52 MINE · 4609522

    3.0 on-site hours reported

  25. Accumulation of combustible materials.

    violationRecord 5098258
    ROAD FORK #52 MINE · 4609522

    30 CFR 75.400 · $818.00 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.