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Sierra Ready Mix 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 F048723
    Sierra Ready Mix Quarry · 2602594

    0.0 on-site hours reported

  2. Parking procedures for unattended equipment.

    violationRecord 5108338
    Sierra Ready Mix Quarry · 2602594

    30 CFR 56.14207

  3. Housekeeping.

    violationRecord 5108337
    Sierra Ready Mix Quarry · 2602594

    30 CFR 56.20003(a) · Significant and substantial (S&S)

  4. Regular Safety and Health Inspection

    inspectionRecord F031E2A
    Sierra Ready Mix Quarry · 2602594

    11.3 on-site hours reported

  5. Horns and backup alarms.

    violationRecord 5108208
    Sierra Ready Mix Quarry · 2602594

    30 CFR 56.14132(b)(2) · $313.00 proposed penalty

  6. Housekeeping.

    violationRecord 5108206
    Sierra Ready Mix Quarry · 2602594

    30 CFR 56.20003(a) · Significant and substantial (S&S) · $1,550.00 proposed penalty

  7. Inspection and cover plates.

    violationRecord 5108205
    Sierra Ready Mix Quarry · 2602594

    30 CFR 56.12032 · $313.00 proposed penalty

  8. Regular Safety and Health Inspection

    inspectionRecord F01DAC9
    Sierra Ready Mix Quarry · 2602594

    10.0 on-site hours reported

  9. Inspection of compressed-air receivers and other unfired pressure vessels.

    violationRecord 5103343
    Sierra Ready Mix Quarry · 2602594

    30 CFR 56.13015(a) · $151.00 proposed penalty

  10. Guarding electrical connections and resistor grids.

    violationRecord 5103342
    Sierra Ready Mix Quarry · 2602594

    30 CFR 56.12023 · $151.00 proposed penalty

  11. Moving machine parts.

    violationRecord 5103341
    Sierra Ready Mix Quarry · 2602594

    30 CFR 56.14107(a) · $151.00 proposed penalty

  12. Safety defects; examination, correction and records.

    violationRecord 5103340
    Sierra Ready Mix Quarry · 2602594

    30 CFR 56.14100(c) · $151.00 proposed penalty

  13. New task training.

    violationRecord 5103339
    Sierra Ready Mix Quarry · 2602594

    30 CFR 46.7(a) · $168.00 proposed penalty

  14. Oxygen cylinder storage.

    violationRecord 5103338
    Sierra Ready Mix Quarry · 2602594

    30 CFR 56.4601 · $151.00 proposed penalty

  15. Legal identity report.

    violationRecord 5103337
    Sierra Ready Mix Quarry · 2602594

    30 CFR 41.20 · $151.00 proposed penalty

  16. Electrical conductors.

    violationRecord 9686882
    Sierra Ready Mix Quarry · 2602594

    30 CFR 56.12004 · $504.00 proposed penalty

  17. Insulation and fittings for power wires and cables.

    violationRecord 9686881
    Sierra Ready Mix Quarry · 2602594

    30 CFR 56.12008 · $226.00 proposed penalty

  18. Moving machine parts.

    violationRecord 9686880
    Sierra Ready Mix Quarry · 2602594

    30 CFR 56.14107(a) · $226.00 proposed penalty

  19. Regular Safety and Health Inspection

    inspectionRecord F0140FA
    Sierra Ready Mix Quarry · 2602594

    14.5 on-site hours reported

  20. Construction and maintenance of guards.

    violationRecord 9686820
    Sierra Ready Mix Quarry · 2602594

    30 CFR 56.14112(b) · $226.00 proposed penalty

  21. Safety procedures for towing.

    violationRecord 9686819
    Sierra Ready Mix Quarry · 2602594

    30 CFR 56.14209(b) · $151.00 proposed penalty

  22. Regular Safety and Health Inspection

    inspectionRecord F0140E2
    Sierra Ready Mix Quarry · 2602594

    16.5 on-site hours reported

  23. Safety defects; examination, correction and records.

    violationRecord 9686818
    Sierra Ready Mix Quarry · 2602594

    30 CFR 56.14100(a) · Significant and substantial (S&S) · $1,431.00 proposed penalty

  24. Parking procedures for unattended equipment.

    violationRecord 9686817
    Sierra Ready Mix Quarry · 2602594

    30 CFR 56.14207 · $151.00 proposed penalty

  25. Horns and backup alarms.

    violationRecord 9686816
    Sierra Ready Mix Quarry · 2602594

    30 CFR 56.14132(a) · Significant and substantial (S&S) · $1,431.00 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.