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Wolverine Fuels LLC 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. Maintenance of belt conveyors and belt conveyor entries.

    violationRecord 5035558
    Emery Valley Mine · 4200079

    30 CFR 75.1731(a) · $245.00 proposed penalty

  2. Mine ventilation plan; submission and approval.

    violationRecord 5036967
    Fossil Rock Mine · 4201211

    30 CFR 75.370(a)(1) · Significant and substantial (S&S) · $2,312.00 proposed penalty

  3. Refuge alternatives.

    violationRecord 5036966
    Fossil Rock Mine · 4201211

    30 CFR 75.1506(g) · Significant and substantial (S&S) · $8,315.00 proposed penalty

  4. Ventilation controls.

    violationRecord 5030882
    SKYLINE MINE #3 · 4201566

    30 CFR 75.333(h) · $366.00 proposed penalty

  5. Maintenance of incombustible content of rock dust.

    violationRecord 5030881
    SKYLINE MINE #3 · 4201566

    30 CFR 75.403 · $226.00 proposed penalty

  6. Maintenance of incombustible content of rock dust.

    violationRecord 5030880
    SKYLINE MINE #3 · 4201566

    30 CFR 75.403 · $226.00 proposed penalty

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

    violationRecord 5035557
    SKYLINE MINE #3 · 4201566

    30 CFR 75.1909(d) · $226.00 proposed penalty

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

    violationRecord 5035556
    SKYLINE MINE #3 · 4201566

    30 CFR 75.1909(d) · $226.00 proposed penalty

  9. Compliance Follow-up Inspection

    inspectionRecord F010BA3
    Emery Valley Mine · 4200079

    41.5 on-site hours reported

  10. Escapeway maps.

    violationRecord 5036965
    Fossil Rock Mine · 4201211

    30 CFR 75.1505(b) · $288.00 proposed penalty

  11. Escapeway maps.

    violationRecord 5036964
    Fossil Rock Mine · 4201211

    30 CFR 75.1505(b) · $288.00 proposed penalty

  12. Ventilation controls.

    violationRecord 5036963
    Fossil Rock Mine · 4201211

    30 CFR 75.333(h) · $288.00 proposed penalty

  13. Condition and examination of firefighting equipment.

    violationRecord 5036962
    Fossil Rock Mine · 4201211

    30 CFR 75.1100-3 · $288.00 proposed penalty

  14. Compliance Follow-up Inspection

    inspectionRecord F00E3DA
    Fossil Rock Mine · 4201211

    58.3 on-site hours reported

  15. Installation of water sprinkler systems; requirements.

    violationRecord 5037156
    SKYLINE MINE #3 · 4201566

    30 CFR 75.1101-7(b) · $226.00 proposed penalty

  16. Ventilation controls.

    violationRecord 5037155
    SKYLINE MINE #3 · 4201566

    30 CFR 75.333(h) · $366.00 proposed penalty

  17. Starting aids.

    violationRecord 5035555
    SKYLINE MINE #3 · 4201566

    30 CFR 75.1913(b) · $226.00 proposed penalty

  18. Accumulation of combustible materials.

    violationRecord 5030879
    SKYLINE MINE #3 · 4201566

    30 CFR 75.400 · $465.00 proposed penalty

  19. Ventilation controls.

    violationRecord 5030878
    SKYLINE MINE #3 · 4201566

    30 CFR 75.333(h) · $366.00 proposed penalty

  20. Ventilation controls.

    violationRecord 5037154
    SKYLINE MINE #3 · 4201566

    30 CFR 75.333(h) · $366.00 proposed penalty

  21. Water sprinkler systems; fire warning devices at belt drives.

    violationRecord 5037153
    SKYLINE MINE #3 · 4201566

    30 CFR 75.1101-10 · $226.00 proposed penalty

  22. Ventilation controls.

    violationRecord 5037152
    SKYLINE MINE #3 · 4201566

    30 CFR 75.333(h) · $366.00 proposed penalty

  23. Preshift examination at fixed intervals.

    violationRecord 5037151
    SKYLINE MINE #3 · 4201566

    30 CFR 75.360(g) · $245.00 proposed penalty

  24. Accumulation of combustible materials.

    violationRecord 5030877
    SKYLINE MINE #3 · 4201566

    30 CFR 75.400 · $465.00 proposed penalty

  25. Ventilation controls.

    violationRecord 5030876
    SKYLINE MINE #3 · 4201566

    30 CFR 75.333(h) · $366.00 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.