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Mark T Thorson 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. Construction and maintenance of guards.

    violationRecord 5115037
    Plant-6 · 2103145

    30 CFR 56.14112(a)(1) · $151.00 proposed penalty

  2. Electrical conductors.

    violationRecord 5115036
    Plant-6 · 2103145

    30 CFR 56.12004 · $151.00 proposed penalty

  3. New miner training.

    violationRecord 5115035
    Plant-6 · 2103145

    30 CFR 46.5(a) · Significant and substantial (S&S) · $407.00 proposed penalty

  4. Special Emphasis Programs

    inspectionRecord F01502F
    Plant 11 · 2102550

    0.5 on-site hours reported

  5. Special Emphasis Programs

    inspectionRecord F015030
    PLANT 14 · 2103286

    0.3 on-site hours reported

  6. Regular Safety and Health Inspection

    inspectionRecord F01C1C8
    Underwood Wash Plant · 2100857

    2.3 on-site hours reported

  7. Regular Safety and Health Inspection

    inspectionRecord F016D40
    Plant 4 · 2102641

    5.0 on-site hours reported

  8. Construction and maintenance of ladders.

    violationRecord 9696144
    PLANT 14 · 2103286

    30 CFR 56.11003 · Significant and substantial (S&S) · $151.00 proposed penalty

  9. Regular Safety and Health Inspection

    inspectionRecord 6907991
    PLANT 14 · 2103286

    15.0 on-site hours reported

  10. Compliance Follow-up Inspection

    inspectionRecord F017D07
    Plant 2 · 2103660

    1.0 on-site hours reported

  11. Regular Safety and Health Inspection

    inspectionRecord F017D05
    Plant 2 · 2103660

    4.8 on-site hours reported

  12. Examination of working places.

    violationRecord 9697807
    Plant 2 · 2103660

    30 CFR 56.18002(b) · $151.00 proposed penalty

  13. Berms or guardrails.

    violationRecord 9697806
    Plant 2 · 2103660

    30 CFR 56.9300(b) · Significant and substantial (S&S) · $151.00 proposed penalty

  14. Safety defects; examination, correction and records.

    violationRecord 9697805
    Plant 2 · 2103660

    30 CFR 56.14100(b) · $151.00 proposed penalty

  15. Construction and maintenance of guards.

    violationRecord 9697804
    Plant 2 · 2103660

    30 CFR 56.14112(b) · $151.00 proposed penalty

  16. Electrical conductors.

    violationRecord 9697803
    Plant 2 · 2103660

    30 CFR 56.12004 · Significant and substantial (S&S) · $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.