← Mason City Plant

Mason City Plant safety activity

MSHA violations, accident reports and inspections.

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

Safety activity

  1. Compliance Follow-up Inspection

    inspectionRecord F04D3FF

    0.0 on-site hours reported

  2. Preparation and submission of MSHA Report Form 7000-1—Mine Accident, Injury, and Illness Report.

    violationRecord 5114792

    30 CFR 50.20(b)

  3. Exposure limits for airborne contaminants.

    violationRecord 5220769

    30 CFR 56.5001(a)/56.5005 · $1,219.00 proposed penalty

  4. Exposure limits for airborne contaminants.

    violationRecord 5220768

    30 CFR 56.5001(a)/56.5005 · $1,219.00 proposed penalty

  5. Housekeeping.

    violationRecord 9763369

    30 CFR 56.20003(a) · $2,133.00 proposed penalty

  6. Inspection.

    violationRecord 5220759

    30 CFR 56.4201(a)(1) · $1,219.00 proposed penalty

  7. Housekeeping.

    violationRecord 5220758

    30 CFR 56.20003(a) · Significant and substantial (S&S) · $2,133.00 proposed penalty

  8. Housekeeping.

    violationRecord 5220757

    30 CFR 56.20003(a) · Significant and substantial (S&S) · $2,133.00 proposed penalty

  9. Housekeeping.

    violationRecord 5220756

    30 CFR 56.20003(a) · Significant and substantial (S&S) · $2,133.00 proposed penalty

  10. Housekeeping.

    violationRecord 5220755

    30 CFR 56.20003(a) · Significant and substantial (S&S) · $2,133.00 proposed penalty

  11. Construction and maintenance of guards.

    violationRecord 5220754

    30 CFR 56.14112(b) · $313.00 proposed penalty

  12. Housekeeping.

    violationRecord 5220753

    30 CFR 56.20003(a) · Significant and substantial (S&S) · $15,768.00 proposed penalty

  13. Safety defects; examination, correction and records.

    violationRecord 9763367

    30 CFR 56.14100(b) · $432.00 proposed penalty

  14. Roll-over protective structures (ROPS) and seat belts.

    violationRecord 9763366

    30 CFR 56.14130(g) · $151.00 proposed penalty

  15. Machinery, equipment, and tools.

    violationRecord 9763365

    30 CFR 56.14205 · $151.00 proposed penalty

  16. Oxygen cylinder storage.

    violationRecord 5220752

    30 CFR 56.4601 · $432.00 proposed penalty

  17. Safety defects; examination, correction and records.

    violationRecord 5220751

    30 CFR 56.14100(b) · $193.00 proposed penalty

  18. Housekeeping.

    violationRecord 5220750

    30 CFR 56.20003(a) · $549.00 proposed penalty

  19. Inspection and cover plates.

    violationRecord 5220749

    30 CFR 56.12032 · $432.00 proposed penalty

  20. Construction and maintenance of guards.

    violationRecord 5220748

    30 CFR 56.14112(a)(1) · $288.00 proposed penalty

  21. Construction and maintenance of guards.

    violationRecord 5220747

    30 CFR 56.14112(a)(1) · Significant and substantial (S&S) · $959.00 proposed penalty

  22. Housekeeping.

    violationRecord 5220746

    30 CFR 56.20003(a) · Significant and substantial (S&S) · $20,047.00 proposed penalty

  23. Housekeeping.

    violationRecord 5220745

    30 CFR 56.20003(a) · Significant and substantial (S&S) · $20,047.00 proposed penalty

  24. Construction and maintenance of guards.

    violationRecord 5220744

    30 CFR 56.14112(a)(1) · $432.00 proposed penalty

  25. Housekeeping.

    violationRecord 5220743

    30 CFR 56.20003(a) · Significant and substantial (S&S) · $20,047.00 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.