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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. Roof control plan.

    violationRecord 5060587

    30 CFR 75.220(a)(1) · $245.00 proposed penalty

  2. Short circuit protection of trailing cables.

    violationRecord 5060586

    30 CFR 75.601 · Significant and substantial (S&S) · $1,431.00 proposed penalty

  3. Spot Inspections

    inspectionRecord F025C0C

    103(i) · 4.5 on-site hours reported

  4. Fire suppression systems for diesel-powered equipment and fuel transportation units.

    violationRecord 5060585

    30 CFR 75.1911(a)(1) · $959.00 proposed penalty

  5. Permissible electric face equipment; maintenance.

    violationRecord 5060584

    30 CFR 75.503 · Significant and substantial (S&S) · $1,818.00 proposed penalty

  6. Power wires and cables; insulation and protection.

    violationRecord 5060583

    30 CFR 75.517 · Significant and substantial (S&S) · $1,431.00 proposed penalty

  7. Drill dust control at underground areas of underground mines.

    violationRecord 5060582

    30 CFR 72.630(b) · Significant and substantial (S&S) · $2,133.00 proposed penalty

  8. Mine ventilation plan; submission and approval.

    violationRecord 5061414

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

  9. Power wires and cables; insulation and protection.

    violationRecord 5060581

    30 CFR 75.517 · Significant and substantial (S&S) · $1,431.00 proposed penalty

  10. Roof control plan.

    violationRecord 5060580

    30 CFR 75.220(a)(1) · $549.00 proposed penalty

  11. Emergency tethers.

    violationRecord 5060579

    30 CFR 75.1714-6 · Significant and substantial (S&S) · $1,431.00 proposed penalty

  12. Criteria—Self-propelled personnel carriers.

    violationRecord 5060578

    30 CFR 75.1403-6(b)(1) · $288.00 proposed penalty

  13. Other safeguards.

    violationRecord 5060577

    30 CFR 75.1403 · $336.00 proposed penalty

  14. Roof control plan.

    violationRecord 5060576

    30 CFR 75.220(a)(1) · $549.00 proposed penalty

  15. Maintenance of diesel-powered equipment.

    violationRecord 5060575

    30 CFR 75.1914(a) · $288.00 proposed penalty

  16. Accumulation of combustible materials.

    violationRecord 5060574

    30 CFR 75.400 · $592.00 proposed penalty

  17. Ventilation controls.

    violationRecord 5061413

    30 CFR 75.333(h) · $313.00 proposed penalty

  18. Maintenance of belt conveyors and belt conveyor entries.

    violationRecord 5061412

    30 CFR 75.1731(b) · $288.00 proposed penalty

  19. Spot Inspections

    inspectionRecord F014BFD

    103(i) · 11.8 on-site hours reported

  20. Roof control plan.

    violationRecord 5060573

    30 CFR 75.220(a)(1) · Significant and substantial (S&S) · $2,712.00 proposed penalty

  21. Mine ventilation plan; submission and approval.

    violationRecord 5060572

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

  22. Nonpermissible diesel-powered equipment; design and performance requirements.

    violationRecord 5060571

    30 CFR 75.1909(j)(2) · Significant and substantial (S&S) · $1,431.00 proposed penalty

  23. Maintenance of diesel-powered equipment.

    violationRecord 5060570

    30 CFR 75.1914(f) · $288.00 proposed penalty

  24. Maintenance of diesel-powered equipment.

    violationRecord 5060569

    30 CFR 75.1914(a) · $288.00 proposed penalty

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

    violationRecord 5060568

    30 CFR 75.1910(f) · $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.

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.