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M-Class Mining 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. Spot Inspections

    inspectionRecord F00AFB7
    MC#1 Mine · 1103189

    103(i) · 15.8 on-site hours reported

  2. Accumulation of combustible materials.

    violationRecord 5016187
    MC#1 Mine · 1103189

    30 CFR 75.400 · $465.00 proposed penalty

  3. Protective clothing; requirements.

    violationRecord 5016185
    MC#1 Mine · 1103189

    30 CFR 75.1720(a) · Significant and substantial (S&S)

  4. Other safeguards.

    violationRecord 5016184
    MC#1 Mine · 1103189

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

  5. Hoisting

    accidentRecord 220261810017
    MC#1 Mine · 1103189

    No dys awy frm wrk,no rstr act

    Accident narrative

    I.E. stated they were riding cage down and a foreign object flew in their eye behind their glasses.

  6. Spot Inspections

    inspectionRecord F00C52B
    MC#1 Mine · 1103189

    103(i) · 7.5 on-site hours reported

  7. Machinery

    accidentRecord 220262470031
    MC#1 Mine · 1103189

    Days away from work only

    Accident narrative

    I.E. stated they were helping work on a roof bolter, when power was set up and the pump motor started the cable reel was on and the cable swept their feet out from under them causing them to land on their right shoulder. Employee has worked since and went off for surgery on their right shoulder on 9/1/2026.

  8. Accumulation of combustible materials.

    violationRecord 5016607
    MC#1 Mine · 1103189

    30 CFR 75.400 · $432.00 proposed penalty

  9. Spot Inspections

    inspectionRecord F00C52A
    MC#1 Mine · 1103189

    103(i) · 7.0 on-site hours reported

  10. Accumulation of combustible materials.

    violationRecord 5016423
    MC#1 Mine · 1103189

    30 CFR 75.400 · $313.00 proposed penalty

  11. Spot Inspections

    inspectionRecord F00C529
    MC#1 Mine · 1103189

    103(i) · 0.8 on-site hours reported

  12. Inundation

    accidentRecord 220261660024
    MC#1 Mine · 1103189

    Accident only

    Accident narrative

    Longwall panel 12.2 had a gas inundation from behind the shields in the gob @ midface. When MSHA and mine reps. arrived on face the gas had already bled off.

  13. Non-Injury Accident Investigation

    inspectionRecord F00C528
    MC#1 Mine · 1103189

    25.3 on-site hours reported

  14. Violation — cited standard not reported

    violationRecord 9789715
    MC#1 Mine · 1103189

  15. Installation of electric equipment and conductors; permissibility.

    violationRecord 5016605
    MC#1 Mine · 1103189

    30 CFR 75.1002(a) · Significant and substantial (S&S) · $959.00 proposed penalty

  16. Roof control plan.

    violationRecord 5016422
    MC#1 Mine · 1103189

    30 CFR 75.220(a)(1) · $193.00 proposed penalty

  17. Testing, examination and maintenance.

    violationRecord 5011129
    MC#1 Mine · 1103189

    30 CFR 75.821(c) · $642.00 proposed penalty

  18. Stationary grinding machines; protective devices.

    violationRecord 5011128
    MC#1 Mine · 1103189

    30 CFR 75.1723(c) · Significant and substantial (S&S) · $1,431.00 proposed penalty

  19. Multi-gas detectors.

    violationRecord 5011127
    MC#1 Mine · 1103189

    30 CFR 75.1714-7(a) · $193.00 proposed penalty

  20. Accumulation of combustible materials.

    violationRecord 9548773
    MC#1 Mine · 1103189

    30 CFR 75.400 · $313.00 proposed penalty

  21. Other safeguards.

    violationRecord 9548772
    MC#1 Mine · 1103189

    30 CFR 75.1403 · $209.00 proposed penalty

  22. Spot Inspections

    inspectionRecord F01F3C9
    MC#1 Mine · 1103189

    103(i) · 7.0 on-site hours reported

  23. Methane monitors.

    violationRecord 5016604
    MC#1 Mine · 1103189

    30 CFR 75.342(c)(1) · Significant and substantial (S&S) · $465.00 proposed penalty

  24. Spot Inspections

    inspectionRecord F00AFB6
    MC#1 Mine · 1103189

    103(i) · 7.5 on-site hours reported

  25. Air quality.

    violationRecord 5016179
    MC#1 Mine · 1103189

    30 CFR 75.321(a)(2) · $193.00 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.