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Cooper Stone 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. Compliance Follow-up Inspection

    inspectionRecord F0433FE
    Cooper West - Lueders · 4104926

    0.0 on-site hours reported

  2. Regular Safety and Health Inspection

    inspectionRecord F0433F9
    Cooper West - Lueders · 4104926

    8.5 on-site hours reported

  3. Site-specific hazard awareness training.

    violationRecord 5250005
    Cooper West - Lueders · 4104926

    30 CFR 46.11(a) · Significant and substantial (S&S) · $1,066.00 proposed penalty

  4. Testing grounding systems.

    violationRecord 5250004
    Cooper West - Lueders · 4104926

    30 CFR 56.12028 · $193.00 proposed penalty

  5. Berms or guardrails.

    violationRecord 5250003
    Cooper West - Lueders · 4104926

    30 CFR 56.9300(a) · Significant and substantial (S&S) · $959.00 proposed penalty

  6. Combustible waste.

    violationRecord 5250002
    Cooper West - Lueders · 4104926

    30 CFR 56.4104(b) · $193.00 proposed penalty

  7. Regular Safety and Health Inspection

    inspectionRecord F02AE3F
    Cooper Quarry-East · 4105051

    3.5 on-site hours reported

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

    violationRecord 5172532
    Cooper Quarry-East · 4105051

    30 CFR 50.30(a) · $151.00 proposed penalty

  9. Berms or guardrails.

    violationRecord 5172531
    Cooper Quarry-East · 4105051

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

  10. Regular Safety and Health Inspection

    inspectionRecord F03A7CF
    Cooper Quarry-East · 4105051

    6.5 on-site hours reported

  11. Electrical conductors.

    violationRecord 5009158
    Cooper Quarry-East · 4105051

    30 CFR 56.12004 · $151.00 proposed penalty

  12. Moving machine parts.

    violationRecord 5009157
    Cooper Quarry-East · 4105051

    30 CFR 56.14107(a) · $151.00 proposed penalty

  13. Verbal Hazard Complaint Inspections

    inspectionRecord F02666E
    Cooper Quarry-East · 4105051

    1.0 on-site hours reported

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

    violationRecord 9745142
    Cooper West - Lueders · 4104926

    30 CFR 50.30(a) · $151.00 proposed penalty

  15. Regular Safety and Health Inspection

    inspectionRecord F01E9A1
    Cooper West - Lueders · 4104926

    9.5 on-site hours reported

  16. New task training.

    violationRecord 9745141
    Cooper West - Lueders · 4104926

    30 CFR 46.7(a) · Significant and substantial (S&S) · $252.00 proposed penalty

  17. Safety defects; examination, correction and records.

    violationRecord 9745140
    Cooper West - Lueders · 4104926

    30 CFR 56.14100 · Significant and substantial (S&S) · $226.00 proposed penalty

  18. Unstable ground.

    violationRecord 9745139
    Cooper West - Lueders · 4104926

    30 CFR 56.9304(b) · Significant and substantial (S&S) · $504.00 proposed penalty

  19. Berms or guardrails.

    violationRecord 9745138
    Cooper West - Lueders · 4104926

    30 CFR 56.9300 · Significant and substantial (S&S) · $226.00 proposed penalty

  20. Spot Inspection

    inspectionRecord F018F46
    Cooper Quarry-East · 4105051

    10.5 on-site hours reported

  21. Regular Safety and Health Inspection

    inspectionRecord F019A94
    Cooper West - Lueders · 4104926

    3.8 on-site hours reported

  22. First-aid materials.

    violationRecord 5004100
    Cooper West - Lueders · 4104926

    30 CFR 56.15001 · $151.00 proposed penalty

  23. Warning signs.

    violationRecord 5004099
    Cooper West - Lueders · 4104926

    30 CFR 56.4101 · $151.00 proposed penalty

  24. Testing grounding systems.

    violationRecord 5004098
    Cooper West - Lueders · 4104926

    30 CFR 56.12028 · $151.00 proposed penalty

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

    violationRecord 9795698
    Cooper Quarry-East · 4105051

    30 CFR 50.30(a) · $151.00 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.