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Thornton safety activity

MSHA violations, accident reports and inspections.

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

Safety activity

  1. Regular Safety and Health Inspection

    inspectionRecord F03BA9E

    0.0 on-site hours reported

  2. Horns and backup alarms.

    violationRecord 5212601

    30 CFR 56.14132(a)

  3. Moving machine parts.

    violationRecord 5210300

    30 CFR 56.14107(a)

  4. Regular Safety and Health Inspection

    inspectionRecord F02D443

    4.5 on-site hours reported

  5. Operators stations.

    violationRecord 5058401

    30 CFR 56.14103(b) · $151.00 proposed penalty

  6. Electrical conductors.

    violationRecord 5058400

    30 CFR 56.12004 · $151.00 proposed penalty

  7. Moving machine parts.

    violationRecord 5058399

    30 CFR 56.14107(a) · $151.00 proposed penalty

  8. Identification of power switches.

    violationRecord 5058398

    30 CFR 56.12018 · $151.00 proposed penalty

  9. Compliance Follow-up Inspection

    inspectionRecord F0146F4

    1.0 on-site hours reported

  10. Safety defects; examination, correction and records.

    violationRecord 5052961

    30 CFR 56.14100(c) · $151.00 proposed penalty

  11. Safety defects; examination, correction and records.

    violationRecord 5052960

    30 CFR 56.14100(c) · $151.00 proposed penalty

  12. Requirement for container labels.

    violationRecord 5052959

    30 CFR 47.41(a) · $151.00 proposed penalty

  13. Regular Safety and Health Inspection

    inspectionRecord F0146F0

    3.0 on-site hours reported

  14. General requirements.

    violationRecord 5052958

    30 CFR 56.4200(b)(2) · $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.

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.