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Mason City Plant safety activity

MSHA violations, accident reports and inspections.

2025-01-01 – 2026-10-31Database snapshot · 2026-10-31

Safety activity

  1. Spillage and leakage.

    violationRecord 9697652

    30 CFR 56.4102 · $1,320.00 proposed penalty

  2. Extinguisher recharging or replacement.

    violationRecord 9697651

    30 CFR 56.4203 · $267.00 proposed penalty

  3. Inspection.

    violationRecord 9697650

    30 CFR 56.4201(a)(1) · $267.00 proposed penalty

  4. Identification of power switches.

    violationRecord 9697649

    30 CFR 56.12018 · $1,126.00 proposed penalty

  5. Identification of power switches.

    violationRecord 9697648

    30 CFR 56.12018 · $3,736.00 proposed penalty

  6. Electrical conductors.

    violationRecord 9697647

    30 CFR 56.12004 · $1,968.00 proposed penalty

  7. Inspection and cover plates.

    violationRecord 9699936

    30 CFR 56.12032 · $592.00 proposed penalty

  8. Parking procedures for unattended equipment.

    violationRecord 9699935

    30 CFR 56.14207 · $151.00 proposed penalty

  9. Parking procedures for unattended equipment.

    violationRecord 9699934

    30 CFR 56.14207 · $592.00 proposed penalty

  10. Parking procedures for unattended equipment.

    violationRecord 9699933

    30 CFR 56.14207 · $592.00 proposed penalty

  11. Access to stationary electrical equipment or switchgear.

    violationRecord 9699932

    30 CFR 56.12019 · $592.00 proposed penalty

  12. Barricades and warning signs.

    violationRecord 9697646

    30 CFR 56.20011 · $592.00 proposed penalty

  13. Inspection.

    violationRecord 9697645

    30 CFR 56.4201(a)(1) · $592.00 proposed penalty

  14. Combustible waste.

    violationRecord 9697644

    30 CFR 56.4104(a) · $592.00 proposed penalty

  15. Housekeeping.

    violationRecord 9697643

    30 CFR 56.20003(a) · Significant and substantial (S&S) · $10,569.00 proposed penalty

  16. Protection for openings around travelways.

    violationRecord 9697642

    30 CFR 56.11012 · $267.00 proposed penalty

  17. Inspection.

    violationRecord 9697641

    30 CFR 56.4201(a)(1) · $267.00 proposed penalty

  18. Hand-held power tools.

    violationRecord 9699931

    30 CFR 56.14116(a) · $592.00 proposed penalty

  19. Access to stationary electrical equipment or switchgear.

    violationRecord 9699930

    30 CFR 56.12019 · $1,968.00 proposed penalty

  20. Moving machine parts.

    violationRecord 9699929

    30 CFR 56.14107(a) · $592.00 proposed penalty

  21. Oxygen cylinder storage.

    violationRecord 9699928

    30 CFR 56.4601 · $151.00 proposed penalty

  22. Spillage and leakage.

    violationRecord 9699927

    30 CFR 56.4102 · $592.00 proposed penalty

  23. Spillage and leakage.

    violationRecord 9699926

    30 CFR 56.4102 · $592.00 proposed penalty

  24. Spillage and leakage.

    violationRecord 9697640

    30 CFR 56.4102 · $1,320.00 proposed penalty

  25. Parking procedures for unattended equipment.

    violationRecord 9697639

    30 CFR 56.14207 · $267.00 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.

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.