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← Twin State Mining, Inc.

Twin State Mining, Inc. 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. Air quality detectors and measurement devices.

    violationRecord 5091285
    MINE NO. 44 · 4609523

    30 CFR 75.320(a) · $592.00 proposed penalty

  2. Accumulation of combustible materials.

    violationRecord 5131327
    MINE NO. 44 · 4609523

    30 CFR 75.400 · $288.00 proposed penalty

  3. Mine ventilation plan; submission and approval.

    violationRecord 5131326
    MINE NO. 44 · 4609523

    30 CFR 75.370(a)(1) · Significant and substantial (S&S) · $5,574.00 proposed penalty

  4. Machinery and equipment; operation and maintenance.

    violationRecord 5091274
    MINE NO. 44 · 4609523

    30 CFR 75.1725(a) · Significant and substantial (S&S) · $549.00 proposed penalty

  5. Permissible electric face equipment; maintenance.

    violationRecord 5091273
    MINE NO. 44 · 4609523

    30 CFR 75.503 · $465.00 proposed penalty

  6. Cable fittings; suitability.

    violationRecord 5091272
    MINE NO. 44 · 4609523

    30 CFR 75.515 · Significant and substantial (S&S) · $4,047.00 proposed penalty

  7. Accumulation of combustible materials.

    violationRecord 5091271
    MINE NO. 44 · 4609523

    30 CFR 75.400 · $504.00 proposed penalty

  8. Mine ventilation plan; submission and approval.

    violationRecord 5091270
    MINE NO. 44 · 4609523

    30 CFR 75.370(a)(1) · $818.00 proposed penalty

  9. Machinery and equipment; operation and maintenance.

    violationRecord 5091269
    MINE NO. 44 · 4609523

    30 CFR 75.1725(a) · $177.00 proposed penalty

  10. Self-rescue devices; use and location requirements.

    violationRecord 5091268
    MINE NO. 44 · 4609523

    30 CFR 75.1714-2(d) · $366.00 proposed penalty

  11. Accumulation of combustible materials.

    violationRecord 5091267
    MINE NO. 44 · 4609523

    30 CFR 75.400 · $226.00 proposed penalty

  12. Accumulation of combustible materials.

    violationRecord 5091266
    MINE NO. 44 · 4609523

    30 CFR 75.400 · Significant and substantial (S&S) · $2,503.00 proposed penalty

  13. Accumulation of combustible materials.

    violationRecord 5091265
    MINE NO. 44 · 4609523

    30 CFR 75.400 · $883.00 proposed penalty

  14. Accumulation of combustible materials.

    violationRecord 5091264
    MINE NO. 44 · 4609523

    30 CFR 75.400 · $226.00 proposed penalty

  15. Accumulation of combustible materials.

    violationRecord 5091263
    MINE NO. 44 · 4609523

    30 CFR 75.400 · $504.00 proposed penalty

  16. Machinery and equipment; operation and maintenance.

    violationRecord 5091262
    MINE NO. 44 · 4609523

    30 CFR 75.1725(a) · Significant and substantial (S&S) · $1,219.00 proposed penalty

  17. Roof control plan.

    violationRecord 5091261
    MINE NO. 44 · 4609523

    30 CFR 75.220(a)(1) · $592.00 proposed penalty

  18. Inspection of fire suppression devices.

    violationRecord 5091260
    MINE NO. 44 · 4609523

    30 CFR 75.1107-16(b) · $818.00 proposed penalty

  19. Accumulation of combustible materials.

    violationRecord 5091238
    MINE NO. 44 · 4609523

    30 CFR 75.400 · $1,679.00 proposed penalty

  20. Electric equipment; examination, testing and maintenance.

    violationRecord 5091237
    MINE NO. 44 · 4609523

    30 CFR 75.512 · $245.00 proposed penalty

  21. Mine ventilation plan; submission and approval.

    violationRecord 5091236
    MINE NO. 44 · 4609523

    30 CFR 75.370(a)(1) · $151.00 proposed penalty

  22. Accumulation of combustible materials.

    violationRecord 5091235
    MINE NO. 44 · 4609523

    30 CFR 75.400 · $6,540.00 proposed penalty

  23. Escapeway maps.

    violationRecord 5091234
    MINE NO. 44 · 4609523

    30 CFR 75.1505(b) · $3,184.00 proposed penalty

  24. Criteria—Haulage; general.

    violationRecord 5091231
    MINE NO. 44 · 4609523

    30 CFR 75.1403-10(f)

  25. Rock dusting.

    violationRecord 5091233
    MINE NO. 44 · 4609523

    30 CFR 75.402 · $245.00 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.