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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. Power wires and cables; insulation and protection.

    violationRecord 9786649
    MC#1 Mine · 1103189

    30 CFR 75.517 · Significant and substantial (S&S) · $3,184.00 proposed penalty

  2. Maintenance of belt conveyors and belt conveyor entries.

    violationRecord 9786648
    MC#1 Mine · 1103189

    30 CFR 75.1731(a) · $193.00 proposed penalty

  3. Power wires and cables; insulation and protection.

    violationRecord 9783959
    MC#1 Mine · 1103189

    30 CFR 75.517 · Significant and substantial (S&S) · $3,184.00 proposed penalty

  4. Transportation of liquefied and nonliquefied compressed gas cylinders; requirements.

    violationRecord 9786813
    MC#1 Mine · 1103189

    30 CFR 75.1106-2(a)(1) · $193.00 proposed penalty

  5. Spot Inspections

    inspectionRecord F009D07
    MC#1 Mine · 1103189

    103(i) · 6.0 on-site hours reported

  6. Methane monitors.

    violationRecord 9783184
    MC#1 Mine · 1103189

    30 CFR 75.342(a)(4) · Significant and substantial (S&S) · $592.00 proposed penalty

  7. Preshift examination at fixed intervals.

    violationRecord 9786812
    MC#1 Mine · 1103189

    30 CFR 75.360(g) · $177.00 proposed penalty

  8. Mine ventilation plan; submission and approval.

    violationRecord 9786090
    MC#1 Mine · 1103189

    30 CFR 75.370(a)(1) · $1,219.00 proposed penalty

  9. Roof control plan.

    violationRecord 9786089
    MC#1 Mine · 1103189

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

  10. Fall of roof or back

    accidentRecord 220250790006
    MC#1 Mine · 1103189

    Accident only

    Accident narrative

    A non-injury accident occurred when a roof fall occurred on the travel way of B-slope run-a-round.

  11. Non-Injury Accident Investigation

    inspectionRecord 7006840
    MC#1 Mine · 1103189

    10.8 on-site hours reported

  12. Violation — cited standard not reported

    violationRecord 9786088
    MC#1 Mine · 1103189

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

    violationRecord 9786647
    MC#1 Mine · 1103189

    30 CFR 75.1101-10 · Significant and substantial (S&S) · $959.00 proposed penalty

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

    violationRecord 9786646
    MC#1 Mine · 1103189

    30 CFR 75.1101-10 · Significant and substantial (S&S) · $959.00 proposed penalty

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

    violationRecord 9786645
    MC#1 Mine · 1103189

    30 CFR 75.1101-10 · $193.00 proposed penalty

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

    violationRecord 9786644
    MC#1 Mine · 1103189

    30 CFR 75.1101-10 · $151.00 proposed penalty

  17. Fall of face/rib/pillar/side/highwall

    accidentRecord 220250830018
    MC#1 Mine · 1103189

    Days away from work only

    Accident narrative

    I. E. stated that they were standing next to the rib and a o=piece rolled out striking employee in the left ankle. Employee went to hospital x-ray showed nothing broke they followed op with Ortho. doctor that took them off work due to muscle injury. Employee was issued crutches

  18. Maintenance of belt conveyors and belt conveyor entries.

    violationRecord 9786811
    MC#1 Mine · 1103189

    30 CFR 75.1731(a) · $193.00 proposed penalty

  19. Low- and medium-voltage circuits serving three-phase alternating current equipment; circuit breakers.

    violationRecord 9786157
    MC#1 Mine · 1103189

    30 CFR 75.900 · Significant and substantial (S&S) · $3,184.00 proposed penalty

  20. Low- and medium-voltage circuits serving three-phase alternating current equipment; circuit breakers.

    violationRecord 9786156
    MC#1 Mine · 1103189

    30 CFR 75.900 · Significant and substantial (S&S) · $3,184.00 proposed penalty

  21. Spot Inspections

    inspectionRecord 7031386
    MC#1 Mine · 1103189

    103(i) · 5.5 on-site hours reported

  22. Transportation of liquefied and nonliquefied compressed gas cylinders; requirements.

    violationRecord 9786810
    MC#1 Mine · 1103189

    30 CFR 75.1106-2(a)(1) · $193.00 proposed penalty

  23. Transport of diesel fuel.

    violationRecord 9786809
    MC#1 Mine · 1103189

    30 CFR 75.1906(c) · $193.00 proposed penalty

  24. Mine ventilation plan; submission and approval.

    violationRecord 9549745
    MC#1 Mine · 1103189

    30 CFR 75.370(a)(1) · Significant and substantial (S&S) · $1,818.00 proposed penalty

  25. Air quality.

    violationRecord 9786642
    MC#1 Mine · 1103189

    30 CFR 75.321(a)(1) · $642.00 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.