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Heidelberg Materials Midwest Agg, Inc. safety activity

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

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

Safety activity

  1. Regular Safety and Health Inspection

    inspectionRecord F0197BF
    Tyrone Mine & Mill · 1500043

    9.3 on-site hours reported

  2. Regular Safety and Health Inspection

    inspectionRecord F015CFC
    Mount Vernon Underground Mine #2 · 1519979

    7.5 on-site hours reported

  3. Regular Safety and Health Inspection

    inspectionRecord F0197C0
    PLUM RUN STONE · 3300054

    22.0 on-site hours reported

  4. Exposure limits for airborne contaminants.

    violationRecord 9287001
    Aggrock Quarry · 1202179

    30 CFR 56.5001(a)/56.5005 · Significant and substantial (S&S) · $432.00 proposed penalty

  5. Safety defects; examination, correction and records.

    violationRecord 5083582
    Tyrone Mine & Mill · 1500043

    30 CFR 57.14100(b) · Significant and substantial (S&S) · $151.00 proposed penalty

  6. Regular Safety and Health Inspection

    inspectionRecord F02502C
    Romeo Quarry · 1100070

    23.8 on-site hours reported

  7. Electrical conductors.

    violationRecord 5118329
    Romeo Quarry · 1100070

    30 CFR 56.12004 · $398.00 proposed penalty

  8. Electrical conductors.

    violationRecord 5118328
    Romeo Quarry · 1100070

    30 CFR 56.12004 · $398.00 proposed penalty

  9. Non-Chargeable Accident Investigation

    inspectionRecord F02502B
    Thornton Quarry · 1100066

    2.8 on-site hours reported

  10. Other

    accidentRecord 220260280020
    Thornton Quarry · 1100066

    Injuries involvng nonemployees

    Accident narrative

    Contact person was called by the Illinois Tollway on the afternoon of 1/27/26 about a missing person that was suicidal that may have jumped in the West Quarry off of the 80/94 tollway. Second contact was contacted around 4:00PM to come help search the West Quarry. At around 4:50PM the body of the trespasser was found and reported to authority's and the department of labor.

  11. Safety defects; examination, correction and records.

    violationRecord 5118146
    Federal Underground · 1102814

    30 CFR 57.14100(c) · $151.00 proposed penalty

  12. Safety defects; examination, correction and records.

    violationRecord 5118145
    Federal Underground · 1102814

    30 CFR 57.14100(c) · $336.00 proposed penalty

  13. Electrical conductors.

    violationRecord 5118144
    Federal Underground · 1102814

    30 CFR 57.12004 · $151.00 proposed penalty

  14. Moving machine parts.

    violationRecord 9778332
    AA Limestone · 1517923

    30 CFR 56.14107(a) · Significant and substantial (S&S) · $465.00 proposed penalty

  15. Combustible waste.

    violationRecord 5118143
    Federal Underground · 1102814

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

  16. Horns and backup alarms.

    violationRecord 9778331
    AA Limestone · 1517923

    30 CFR 56.14132(b)(2) · $151.00 proposed penalty

  17. Machinery

    accidentRecord 220260280018
    LAUREL QUARRY · 1512905

    Dys awy frm wrk & restrctd act

    Accident narrative

    Employee was standing near head pulley on C-5 and radioed the operator to start the belt. When started the torque arm holding the gear box assembly broke free allowing the assembly to spin forward. The assembly struck the employee in the left leg.

  18. Regular Safety and Health Inspection

    inspectionRecord F0336FD
    Federal Underground · 1102814

    15.5 on-site hours reported

  19. Spot Inspection

    inspectionRecord F00FDE3
    Aggrock Quarry · 1202179

    25.5 on-site hours reported

  20. Regular Safety and Health Inspection

    inspectionRecord F01A3B2
    AA Limestone · 1517923

    20.0 on-site hours reported

  21. Regular Safety and Health Inspection

    inspectionRecord F015CF7
    MT. VERNON MINE & MILL · 1500051

    37.8 on-site hours reported

  22. Regular Safety and Health Inspection

    inspectionRecord F02656C
    Monon Quarry · 1202261

    8.8 on-site hours reported

  23. Berms or guardrails.

    violationRecord 5010428
    Monon Quarry · 1202261

    30 CFR 56.9300(a) · $177.00 proposed penalty

  24. Correction of dangerous conditions.

    violationRecord 5010427
    Monon Quarry · 1202261

    30 CFR 56.12030 · $592.00 proposed penalty

  25. Safety defects; examination, correction and records.

    violationRecord 9776382
    LAUREL QUARRY · 1512905

    30 CFR 56.14100(b) · $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.