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Lemont Underground Limestone safety activity

MSHA violations, accident reports and inspections.

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

Safety activity

  1. Regular Safety and Health Inspection

    inspectionRecord F03A7A3

    19.8 on-site hours reported

  2. Inundation

    accidentRecord 220261950005

    Accident only

    Accident narrative

    Violent storms over the weekend knocked down a tree, which in turn knocked down a power line causing the power to go out at the plant and to the pumps. Heavy rains in excess of 6 inches caused flooding. The heavy rain washed out berms and excessive water running down the decline into the mine. MSHA was notified about the flooding.

  3. Combustible waste.

    violationRecord 5118626

    30 CFR 57.4104(b)(1) · $151.00 proposed penalty

  4. Regular Safety and Health Inspection

    inspectionRecord F029D51

    24.5 on-site hours reported

  5. Housekeeping.

    violationRecord 5118609

    30 CFR 57.20003(a) · $288.00 proposed penalty

  6. Protection of persons at switchgear.

    violationRecord 5118608

    30 CFR 57.12020 · $642.00 proposed penalty

  7. Regular Safety and Health Inspection

    inspectionRecord F029D32

    25.0 on-site hours reported

  8. Roll-over protective structures (ROPS) and seat belts for surface equipment.

    violationRecord 5118603

    30 CFR 57.14130(c) · $226.00 proposed penalty

  9. Regular Safety and Health Inspection

    inspectionRecord F029D2D

    25.5 on-site hours reported

  10. Warning signs.

    violationRecord 8736180

    30 CFR 57.4101 · $151.00 proposed penalty

  11. Regular Safety and Health Inspection

    inspectionRecord F00698E

    21.0 on-site hours reported

  12. Parking procedures for unattended equipment.

    violationRecord 8736179

    30 CFR 57.14207 · Significant and substantial (S&S) · $755.00 proposed penalty

  13. Inspection and cover plates.

    violationRecord 8736151

    30 CFR 57.12032 · $267.00 proposed penalty

  14. Regular Safety and Health Inspection

    inspectionRecord F00696E

    24.8 on-site hours reported

  15. Inspection.

    violationRecord 8736134

    30 CFR 57.4201(a)(2) · $151.00 proposed penalty

  16. Testing grounding systems.

    violationRecord 8736133

    30 CFR 57.12028 · $177.00 proposed penalty

  17. Berms or guardrails.

    violationRecord 8736132

    30 CFR 57.9300(b) · $177.00 proposed penalty

  18. Temporary, portable containers.

    violationRecord 8736131

    30 CFR 47.44(b) · $151.00 proposed penalty

  19. Regular Safety and Health Inspection

    inspectionRecord F00695F

    16.0 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.

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.