← CalMat Co.

CalMat Co. 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. Regular Safety and Health Inspection

    inspectionRecord F036E04
    Napa Quarry · 0400023

    3.8 on-site hours reported

  2. Impoundment Spot Inspection

    inspectionRecord F005BF0
    Pleasanton Plant · 0401924

    3.5 on-site hours reported

  3. Impoundment Spot Inspection

    inspectionRecord F0177EA
    San Emidio Plant · 0401800

    0.8 on-site hours reported

  4. Regular Safety and Health Inspection

    inspectionRecord F03DE59
    PENA BLANCA · 2901771

    9.3 on-site hours reported

  5. Regular Safety and Health Inspection

    inspectionRecord F04B5C3
    SUN CITY PLANT · 0200632

    12.3 on-site hours reported

  6. Spot Inspection

    inspectionRecord 6858965
    West Plant · 0202166

    1.3 on-site hours reported

  7. Regular Safety and Health Inspection

    inspectionRecord F020C35
    San Bernardino Plant · 0401984

    25.0 on-site hours reported

  8. Regular Safety and Health Inspection

    inspectionRecord F04736B
    West Plant · 0202166

    7.8 on-site hours reported

  9. Regular Safety and Health Inspection

    inspectionRecord F04A75F
    RELIANCE PLANT · 0403200

    11.0 on-site hours reported

  10. Spot Inspection

    inspectionRecord F047361
    MARANA PLANT · 0202919

    0.5 on-site hours reported

  11. Handling of materials

    accidentRecord 220262520012
    Napa Quarry · 0400023

    Days away from work only

    Accident narrative

    While performing a preventative maintenance inspection on a dozer, employee scraped EE's right shin against the equipment while descending resulting in a laceration to EE's right shin that required medical treatment, including eight stitches.

  12. Regular Safety and Health Inspection

    inspectionRecord F0408E7
    Queen Creek Stone · 0203342

    10.3 on-site hours reported

  13. Regular Safety and Health Inspection

    inspectionRecord F035D52
    MARANA PLANT · 0202919

    5.5 on-site hours reported

  14. Restricted clearance.

    violationRecord 5221260
    MARANA PLANT · 0202919

    30 CFR 56.11008 · Significant and substantial (S&S) · $336.00 proposed penalty

  15. Horns and backup alarms.

    violationRecord 5221259
    MARANA PLANT · 0202919

    30 CFR 56.14132(a) · $151.00 proposed penalty

  16. Safety defects; examination, correction and records.

    violationRecord 5221258
    MARANA PLANT · 0202919

    30 CFR 56.14100(b) · $151.00 proposed penalty

  17. General requirements.

    violationRecord 5221257
    MARANA PLANT · 0202919

    30 CFR 56.4200(b)(2) · $151.00 proposed penalty

  18. Regular Safety and Health Inspection

    inspectionRecord F030FAB
    Corona Plant · 0405095

    15.5 on-site hours reported

  19. Impoundment Spot Inspection

    inspectionRecord F0177E2
    San Emidio Plant · 0401800

    2.0 on-site hours reported

  20. 103 (g) Written Notification Hazard Complaint Inspectio

    inspectionRecord F03EAEE
    Napa Quarry · 0400023

    1.5 on-site hours reported

  21. Regular Safety and Health Inspection

    inspectionRecord F02C18A
    Durbin Plant · 0401734

    10.0 on-site hours reported

  22. Potable water.

    violationRecord 5165311
    Durbin Plant · 0401734

    30 CFR 56.20002(a) · Significant and substantial (S&S) · $245.00 proposed penalty

  23. Regular Safety and Health Inspection

    inspectionRecord F03EAED
    Napa Quarry · 0400023

    4.0 on-site hours reported

  24. Regular Safety and Health Inspection

    inspectionRecord F025523
    West Broadway · 0202261

    13.0 on-site hours reported

  25. Slip or fall of person

    accidentRecord 220262230013
    PENA BLANCA · 2901771

    Days away from work only

    Accident narrative

    Employee slipped down a fixed staircase leading to the crusher control booth and rolled onto the wood floor injuring EE's left shoulder, elbow and scrapes to the back of EE's legs. This resulted in restricted duties.

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.