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BISON PIT safety activity

MSHA violations, accident reports and inspections.

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

Safety activity

  1. Exposure monitoring.

    violationRecord 5175543

    30 CFR 56.5002 · Significant and substantial (S&S)

  2. Exposure limits for airborne contaminants.

    violationRecord 5175542

    30 CFR 56.5001(a)/56.5005 · Significant and substantial (S&S)

  3. Handling of materials

    accidentRecord 220262660020

    Days restricted activity only

    Accident narrative

    Employee was replacing broken machine guard on cone shaker. Employee felt a "pop" in their neck and felt a sharp pain running down their back.

  4. Regular Safety and Health Inspection

    inspectionRecord F0510EB

    14.5 on-site hours reported

  5. Insulation and fittings for power wires and cables.

    violationRecord 5175533

    30 CFR 56.12008

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.