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No 4 Mine safety activity

MSHA violations, accident reports and inspections.

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

Safety activity

  1. Other safeguards.

    violationRecord 5062762

    30 CFR 75.1403 · $267.00 proposed penalty

  2. Nonpermissible diesel-powered equipment; electrical system design and performance requirements.

    violationRecord 5062761

    30 CFR 75.1910(f) · $245.00 proposed penalty

  3. Accumulation of combustible materials.

    violationRecord 5062760

    30 CFR 75.400 · $465.00 proposed penalty

  4. Other safeguards.

    violationRecord 5062759

    30 CFR 75.1403 · Significant and substantial (S&S) · $1,320.00 proposed penalty

  5. Nonpermissible diesel-powered equipment; electrical system design and performance requirements.

    violationRecord 5062758

    30 CFR 75.1910(d) · $245.00 proposed penalty

  6. Maintenance of incombustible content of rock dust.

    violationRecord 5062757

    30 CFR 75.403 · $398.00 proposed penalty

  7. Maintenance of incombustible content of rock dust.

    violationRecord 5062756

    30 CFR 75.403 · $336.00 proposed penalty

  8. Maintenance of incombustible content of rock dust.

    violationRecord 5062755

    30 CFR 75.403 · $398.00 proposed penalty

  9. Maintenance of incombustible content of rock dust.

    violationRecord 5062754

    30 CFR 75.403 · $398.00 proposed penalty

  10. Spot Inspections

    inspectionRecord F01A746

    103(i) · 6.5 on-site hours reported

  11. Machinery and equipment; operation and maintenance.

    violationRecord 5063596

    30 CFR 77.404(a) · $366.00 proposed penalty

  12. Accumulations of combustible materials.

    violationRecord 5063595

    30 CFR 77.1104 · $245.00 proposed penalty

  13. Roof bolting.

    violationRecord 5062753

    30 CFR 75.204(c)(1) · $151.00 proposed penalty

  14. Other safeguards.

    violationRecord 5062752

    30 CFR 75.1403 · $267.00 proposed penalty

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

    violationRecord 5062751

    30 CFR 75.202(a) · $465.00 proposed penalty

  16. Spot Inspections

    inspectionRecord F01A745

    103(i) · 11.5 on-site hours reported

  17. Mine ventilation plan; submission and approval.

    violationRecord 5191425

    30 CFR 75.370(a)(1) · $313.00 proposed penalty

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

    violationRecord 5191424

    30 CFR 75.202(a) · $465.00 proposed penalty

  19. Mechanical equipment guards.

    violationRecord 5191423

    30 CFR 75.1722(b) · Significant and substantial (S&S) · $1,818.00 proposed penalty

  20. Accumulation of combustible materials.

    violationRecord 5191422

    30 CFR 75.400 · Significant and substantial (S&S) · $1,037.00 proposed penalty

  21. Spot Inspections

    inspectionRecord F01A744

    103(i) · 6.0 on-site hours reported

  22. Violation — cited standard not reported

    violationRecord 9709170

    Significant and substantial (S&S) · $1,723.00 proposed penalty

  23. Certifications and records of daily examinations.

    violationRecord 5190899

    30 CFR 77.1404 · $245.00 proposed penalty

  24. Protective clothing; requirements.

    violationRecord 5190898

    30 CFR 77.1710(i) · Significant and substantial (S&S) · $209.00 proposed penalty

  25. Spot Inspections

    inspectionRecord F01A743

    103(i) · 8.0 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.

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.