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Thompson Materials safety activity

MSHA violations, accident reports and inspections across the current mine portfolio.

2025-01-01 – 2026-10-28Database snapshot · 2026-10-28

Safety activity

  1. Regular Safety and Health Inspection

    inspectionRecord F04668B
    Mertzon Quarry · 4105713

    1.3 on-site hours reported

  2. Regular Safety and Health Inspection

    inspectionRecord F014F0B
    Portable #3 · 4105485

    10.0 on-site hours reported

  3. Circuit overload protection.

    violationRecord 5088834
    Portable #3 · 4105485

    30 CFR 56.12001 · $151.00 proposed penalty

  4. Extinguisher recharging or replacement.

    violationRecord 5088833
    Portable #3 · 4105485

    30 CFR 56.4203 · $151.00 proposed penalty

  5. Safety can use.

    violationRecord 5088832
    Portable #3 · 4105485

    30 CFR 56.4402 · $151.00 proposed penalty

  6. Regular Safety and Health Inspection

    inspectionRecord F014F0A
    MORELAND PIT · 4105680

    15.5 on-site hours reported

  7. Safety can use.

    violationRecord 5088831
    MORELAND PIT · 4105680

    30 CFR 56.4402 · $151.00 proposed penalty

  8. Inspection and cover plates.

    violationRecord 5088830
    MORELAND PIT · 4105680

    30 CFR 56.12032 · $151.00 proposed penalty

  9. Moving machine parts.

    violationRecord 5088829
    MORELAND PIT · 4105680

    30 CFR 56.14107(a) · $193.00 proposed penalty

  10. Insulation and fittings for power wires and cables.

    violationRecord 5088828
    MORELAND PIT · 4105680

    30 CFR 56.12008 · $151.00 proposed penalty

  11. Spot Inspection

    inspectionRecord F043C8A
    Mertzon Quarry · 4105713

    4.0 on-site hours reported

  12. Regular Safety and Health Inspection

    inspectionRecord F0294D2
    Aubrye Pit · 4105603

    4.0 on-site hours reported

  13. Regular Safety and Health Inspection

    inspectionRecord F0294CF
    Guns Up · 4105689

    7.0 on-site hours reported

  14. Regular Safety and Health Inspection

    inspectionRecord F03102E
    Mertzon Quarry · 4105713

    4.0 on-site hours reported

  15. Regular Safety and Health Inspection

    inspectionRecord F0374F6
    Aubrye Pit · 4105603

    3.8 on-site hours reported

  16. Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.

    violationRecord 5003996
    Aubrye Pit · 4105603

    30 CFR 50.30(a) · $151.00 proposed penalty

  17. Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.

    violationRecord 5003995
    Aubrye Pit · 4105603

    30 CFR 50.30(a) · $151.00 proposed penalty

  18. Notification of commencement of operations and closing of mines.

    violationRecord 5003994
    Aubrye Pit · 4105603

    30 CFR 56.1000 · $151.00 proposed penalty

  19. Regular Safety and Health Inspection

    inspectionRecord F02C157
    Portable #3 · 4105485

    1.8 on-site hours reported

  20. Regular Safety and Health Inspection

    inspectionRecord F02C156
    MORELAND PIT · 4105680

    14.0 on-site hours reported

  21. Construction and maintenance of guards.

    violationRecord 5173045
    MORELAND PIT · 4105680

    30 CFR 56.14112(a) · $151.00 proposed penalty

  22. Construction and maintenance of guards.

    violationRecord 5173044
    MORELAND PIT · 4105680

    30 CFR 56.14112(a)(2) · $151.00 proposed penalty

  23. Housekeeping.

    violationRecord 5173043
    MORELAND PIT · 4105680

    30 CFR 56.20003(a) · Significant and substantial (S&S) · $151.00 proposed penalty

  24. Moving machine parts.

    violationRecord 5173042
    MORELAND PIT · 4105680

    30 CFR 56.14107(a) · $151.00 proposed penalty

  25. Regular Safety and Health Inspection

    inspectionRecord F020C17
    Guns Up · 4105689

    4.3 on-site hours reported

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.