← Martin Marietta Materials Southwest LLC

Martin Marietta Materials Southwest LLC 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 F015BCF
    Beckmann Quarry · 4101335

    19.0 on-site hours reported

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

    violationRecord 9994599
    Perryville Aggregates Plant #2 · 1601417

    30 CFR 50.30(a) · $151.00 proposed penalty

  3. Records of training.

    violationRecord 9994598
    Perryville Aggregates Plant #2 · 1601417

    30 CFR 46.9(a) · $151.00 proposed penalty

  4. Insulation and fittings for power wires and cables.

    violationRecord 5006419
    Medina Rock & Rail · 4105170

    30 CFR 56.12008 · $267.00 proposed penalty

  5. Other

    accidentRecord 220252030028
    Medina Rock & Rail · 4105170

    Injuries due to natural causes

    Accident narrative

    The Medical Technician with Professional Health Services was onsite, working in their mobile unit, conducting medical surveillance when they suffered a personal medical episode. The Technician was transported to the hospital via ambulance. The Technician was diagnosed with a vitamin deficiency and was released without restrictions.

  6. Regular Safety and Health Inspection

    inspectionRecord F030A51
    Medina Rock & Rail · 4105170

    33.3 on-site hours reported

  7. Inspection and cover plates.

    violationRecord 5006622
    NORTH BRIDGEPORT QUARRY · 4103360

    30 CFR 56.12032 · $151.00 proposed penalty

  8. Parking procedures for unattended equipment.

    violationRecord 5002570
    NORTH BRIDGEPORT QUARRY · 4103360

    30 CFR 56.14207 · $151.00 proposed penalty

  9. Requirement for container labels.

    violationRecord 5002569
    NORTH BRIDGEPORT QUARRY · 4103360

    30 CFR 47.41(a) · $151.00 proposed penalty

  10. Safety defects; examination, correction and records.

    violationRecord 5002568
    NORTH BRIDGEPORT QUARRY · 4103360

    30 CFR 56.14100(c) · $151.00 proposed penalty

  11. Regular Safety and Health Inspection

    inspectionRecord F017260
    NORTH BRIDGEPORT QUARRY · 4103360

    24.0 on-site hours reported

  12. Regular Safety and Health Inspection

    inspectionRecord F030A4E
    Black Spur Quarry · 4104159

    17.0 on-site hours reported

  13. Verbal Hazard Complaint Inspections

    inspectionRecord F02611E
    Garfield Sand & Gravel · 4103909

    2.3 on-site hours reported

  14. Regular Safety and Health Inspection

    inspectionRecord F01BD7B
    TIN TOP SAND AND GRAVEL PLANT · 4102852

    11.5 on-site hours reported

  15. Safe access.

    violationRecord 5005613
    TIN TOP SAND AND GRAVEL PLANT · 4102852

    30 CFR 56.11001 · $151.00 proposed penalty

  16. Horns and backup alarms.

    violationRecord 5005612
    TIN TOP SAND AND GRAVEL PLANT · 4102852

    30 CFR 56.14132(b)(1)(i) · $151.00 proposed penalty

  17. Electrical conductors.

    violationRecord 5005611
    TIN TOP SAND AND GRAVEL PLANT · 4102852

    30 CFR 56.12004 · $151.00 proposed penalty

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

    violationRecord 5005610
    TIN TOP SAND AND GRAVEL PLANT · 4102852

    30 CFR 50.30(a) · $151.00 proposed penalty

  19. Safety defects; examination, correction and records.

    violationRecord 5005609
    TIN TOP SAND AND GRAVEL PLANT · 4102852

    30 CFR 56.14100(b) · $151.00 proposed penalty

  20. Regular Safety and Health Inspection

    inspectionRecord F030A4A
    211 QUARRY · 4103829

    6.0 on-site hours reported

  21. Regular Safety and Health Inspection

    inspectionRecord F01877D
    Hunter Stone · 4105230

    11.8 on-site hours reported

  22. Regular Safety and Health Inspection

    inspectionRecord F030A49
    Poteet Sand Plant · 4101342

    6.0 on-site hours reported

  23. Regular Safety and Health Inspection

    inspectionRecord F012629
    Martin Marietta Merkel Plant · 4103848

    10.0 on-site hours reported

  24. Securing gas cylinders.

    violationRecord 5003420
    Martin Marietta Merkel Plant · 4103848

    30 CFR 56.16005 · $151.00 proposed penalty

  25. Electrical conductors.

    violationRecord 5003419
    Martin Marietta Merkel Plant · 4103848

    30 CFR 56.12004 · $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.