← Martin Marietta Kansas City, LLC

Martin Marietta Kansas City, LLC safety activity

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

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

Safety activity

  1. Correction of hazardous conditions.

    violationRecord 5043934
    Randolph Deep Mine · 2302308

    30 CFR 57.3200 · $288.00 proposed penalty

  2. Correction of hazardous conditions.

    violationRecord 5043933
    Randolph Deep Mine · 2302308

    30 CFR 57.3200 · $288.00 proposed penalty

  3. Safety defects; examination, correction and records.

    violationRecord 5043932
    Randolph Deep Mine · 2302308

    30 CFR 57.14100(b) · $151.00 proposed penalty

  4. Identification of power switches.

    violationRecord 5043931
    Randolph Deep Mine · 2302308

    30 CFR 57.12018 · $151.00 proposed penalty

  5. Regular Safety and Health Inspection

    inspectionRecord F03A2B4
    Randolph Deep Mine · 2302308

    26.5 on-site hours reported

  6. Regular Safety and Health Inspection

    inspectionRecord F017B53
    Sunflower Quarry · 1401556

    9.0 on-site hours reported

  7. Correction of hazardous conditions.

    violationRecord 5043904
    Randolph Deep Mine · 2302308

    30 CFR 57.3200 · $165.00 proposed penalty

  8. Protective equipment and clothing for hazards and irritants.

    violationRecord 5043903
    Randolph Deep Mine · 2302308

    30 CFR 57.15006 · $165.00 proposed penalty

  9. Housekeeping.

    violationRecord 5220258
    Randolph Deep Mine · 2302308

    30 CFR 57.20003(a) · $151.00 proposed penalty

  10. Construction and maintenance of guards.

    violationRecord 5220257
    Randolph Deep Mine · 2302308

    30 CFR 57.14112(b) · $151.00 proposed penalty

  11. Construction and maintenance of guards.

    violationRecord 5220256
    Randolph Deep Mine · 2302308

    30 CFR 57.14112(b) · $151.00 proposed penalty

  12. Correction of hazardous conditions.

    violationRecord 5043902
    Randolph Deep Mine · 2302308

    30 CFR 57.3200 · $366.00 proposed penalty

  13. Damaged or deteriorated explosive material.

    violationRecord 5043901
    Randolph Deep Mine · 2302308

    30 CFR 57.6900 · $151.00 proposed penalty

  14. Regular Safety and Health Inspection

    inspectionRecord F03A29E
    Randolph Deep Mine · 2302308

    46.3 on-site hours reported

  15. Spot Inspection

    inspectionRecord F03A29A
    Randolph Deep Mine · 2302308

    2.3 on-site hours reported

  16. Barricades and warning signs.

    violationRecord 5040582
    Randolph Deep Mine · 2302308

    30 CFR 57.20011 · Significant and substantial (S&S) · $642.00 proposed penalty

  17. Warning signs.

    violationRecord 5040571
    Randolph Deep Mine · 2302308

    30 CFR 57.4101 · $151.00 proposed penalty

  18. Operators' stations.

    violationRecord 5043032
    Randolph Deep Mine · 2302308

    30 CFR 57.14103(b) · $151.00 proposed penalty

  19. Insulation and fittings for power wires and cables.

    violationRecord 5043031
    Randolph Deep Mine · 2302308

    30 CFR 57.12008 · $151.00 proposed penalty

  20. Escape and evacuation plans.

    violationRecord 5043030
    Randolph Deep Mine · 2302308

    30 CFR 57.11053(a) · $151.00 proposed penalty

  21. Electrical conductors.

    violationRecord 5040570
    Randolph Deep Mine · 2302308

    30 CFR 57.12004 · $151.00 proposed penalty

  22. Inspection and cover plates.

    violationRecord 5040569
    Randolph Deep Mine · 2302308

    30 CFR 57.12032 · $151.00 proposed penalty

  23. Regular Safety and Health Inspection

    inspectionRecord F01D686
    Randolph Deep Mine · 2302308

    34.8 on-site hours reported

  24. Inspection.

    violationRecord 5043839
    Randolph Deep Mine · 2302308

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

  25. Correction of hazardous conditions.

    violationRecord 5040560
    Randolph Deep Mine · 2302308

    30 CFR 57.3200 · Significant and substantial (S&S) · $2,133.00 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.