← Martin Marietta Southern California Aggregates,LLC

Martin Marietta Southern California Aggregates,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. Moving machine parts.

    violationRecord 5166993
    Maitri Sand and Gravel · 0404157

    30 CFR 56.14107(a) · Significant and substantial (S&S)

  2. Regular Safety and Health Inspection

    inspectionRecord F02B387
    Maitri Sand and Gravel · 0404157

    20.3 on-site hours reported

  3. Construction and maintenance of guards.

    violationRecord 5166992
    Maitri Sand and Gravel · 0404157

    30 CFR 56.14112(b)

  4. Brakes.

    violationRecord 5166991
    Maitri Sand and Gravel · 0404157

    30 CFR 56.14101(a)(2) · $151.00 proposed penalty

  5. Handling of materials

    accidentRecord 220262370026
    Irwindale Aggregates · 0401838

    No dys awy frm wrk,no rstr act

    Accident narrative

    During a maintenance task employees were tasked to replace 12' section of drip rail flashing material when a gust of wind displaced it impacting employees chin.

  6. Inspection.

    violationRecord 5166718
    Irwindale Aggregates · 0401838

    30 CFR 56.4201(a)(2) · $151.00 proposed penalty

  7. Electrical conductors.

    violationRecord 5166717
    Irwindale Aggregates · 0401838

    30 CFR 56.12004 · $151.00 proposed penalty

  8. Regular Safety and Health Inspection

    inspectionRecord F030FA9
    Irwindale Aggregates · 0401838

    12.5 on-site hours reported

  9. Verbal Hazard Complaint Inspections

    inspectionRecord F02C183
    EAGLE VALLEY AGGREGATES · 0404758

    3.5 on-site hours reported

  10. Regular Safety and Health Inspection

    inspectionRecord F016499
    EAGLE VALLEY AGGREGATES · 0404758

    12.5 on-site hours reported

  11. Construction and maintenance of guards.

    violationRecord 5166053
    EAGLE VALLEY AGGREGATES · 0404758

    30 CFR 56.14112(a)(1) · $151.00 proposed penalty

  12. Impoundment Spot Inspection

    inspectionRecord F039E1D
    Maitri Sand and Gravel · 0404157

    0.8 on-site hours reported

  13. Regular Safety and Health Inspection

    inspectionRecord F01647D
    EAGLE VALLEY AGGREGATES · 0404758

    11.0 on-site hours reported

  14. 103 (g) Written Notification Hazard Complaint Inspectio

    inspectionRecord F013159
    Maitri Sand and Gravel · 0404157

    3.0 on-site hours reported

  15. Construction and maintenance of guards.

    violationRecord 5165086
    Maitri Sand and Gravel · 0404157

    30 CFR 56.14112(b) · $151.00 proposed penalty

  16. Examination of working places.

    violationRecord 5165085
    Maitri Sand and Gravel · 0404157

    30 CFR 56.18002(b) · $151.00 proposed penalty

  17. Regular Safety and Health Inspection

    inspectionRecord F013154
    Maitri Sand and Gravel · 0404157

    10.5 on-site hours reported

  18. Slip or fall of person

    accidentRecord 220253170454
    Irwindale Aggregates · 0401838

    Dys awy frm wrk & restrctd act

    Accident narrative

    Employee fell while descending from 988k loader

  19. Regular Safety and Health Inspection

    inspectionRecord F01D83D
    Irwindale Aggregates · 0401838

    30.0 on-site hours reported

  20. Verbal Hazard Complaint Inspections

    inspectionRecord F01314D
    EAGLE VALLEY AGGREGATES · 0404758

    6.5 on-site hours reported

  21. Verbal Hazard Complaint Inspections

    inspectionRecord F01646D
    Maitri Sand and Gravel · 0404157

    7.5 on-site hours reported

  22. Regular Safety and Health Inspection

    inspectionRecord F016FC0
    Irwindale Aggregates · 0401838

    13.0 on-site hours reported

  23. Moving machine parts.

    violationRecord 5166413
    Irwindale Aggregates · 0401838

    30 CFR 56.14107(a) · $151.00 proposed penalty

  24. Impoundment Spot Inspection

    inspectionRecord F0156CE
    Maitri Sand and Gravel · 0404157

    2.0 on-site hours reported

  25. 103 (g) Written Notification Hazard Complaint Inspectio

    inspectionRecord F0156C0
    EAGLE VALLEY AGGREGATES · 0404758

    3.0 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.

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.