← Black Hills Bentonite-A Limited Liability Co

Black Hills Bentonite-A Limited Liability 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. Equipment defects.

    violationRecord 5034184
    WORLAND PLANT · 4800987

    30 CFR 56.7002 · $151.00 proposed penalty

  2. Regular Safety and Health Inspection

    inspectionRecord F0065D4
    TENSLEEP MINE · 4800954

    7.5 on-site hours reported

  3. Inspection.

    violationRecord 5034183
    TENSLEEP MINE · 4800954

    30 CFR 56.4201(a)(1) · $151.00 proposed penalty

  4. Regular Safety and Health Inspection

    inspectionRecord F00F367
    HT Plant · 4801539

    9.3 on-site hours reported

  5. Identification of power switches.

    violationRecord 9732814
    HT Plant · 4801539

    30 CFR 56.12018 · $267.00 proposed penalty

  6. Stationary grinding machines.

    violationRecord 9732813
    Mills Plant · 4800617

    30 CFR 56.14115(b) · $151.00 proposed penalty

  7. Securing gas cylinders.

    violationRecord 9732812
    Mills Plant · 4800617

    30 CFR 56.16005 · $288.00 proposed penalty

  8. Regular Safety and Health Inspection

    inspectionRecord F00F366
    Mills Plant · 4800617

    8.3 on-site hours reported

  9. Regular Safety and Health Inspection

    inspectionRecord F007893
    Casper Plant · 4800243

    12.0 on-site hours reported

  10. Regular Safety and Health Inspection

    inspectionRecord 6472616
    TENSLEEP MINE · 4800954

    7.5 on-site hours reported

  11. Horns and backup alarms.

    violationRecord 9732516
    TENSLEEP MINE · 4800954

    30 CFR 56.14132(b)(1)(i) · $267.00 proposed penalty

  12. Parking procedures for unattended equipment.

    violationRecord 9732515
    TENSLEEP MINE · 4800954

    30 CFR 56.14207 · $267.00 proposed penalty

  13. Construction and maintenance of guards.

    violationRecord 5030827
    HT Plant · 4801539

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

  14. Regular Safety and Health Inspection

    inspectionRecord F022E53
    HT Plant · 4801539

    7.0 on-site hours reported

  15. Insulation and fittings for power wires and cables.

    violationRecord 5030826
    Mills Plant · 4800617

    30 CFR 56.12008 · $288.00 proposed penalty

  16. Moving machine parts.

    violationRecord 5030825
    Mills Plant · 4800617

    30 CFR 56.14107(a) · $1,320.00 proposed penalty

  17. Moving machine parts.

    violationRecord 5030824
    Mills Plant · 4800617

    30 CFR 56.14107(a) · $883.00 proposed penalty

  18. Construction and maintenance of guards.

    violationRecord 5030823
    Casper Plant · 4800243

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

  19. Regular Safety and Health Inspection

    inspectionRecord 6469900
    Casper Plant · 4800243

    11.0 on-site hours reported

  20. Regular Safety and Health Inspection

    inspectionRecord F022E52
    Mills Plant · 4800617

    15.5 on-site hours reported

  21. Spot Inspection

    inspectionRecord 6472568
    WORLAND PLANT · 4800987

    1.0 on-site hours reported

  22. Slip or fall of person

    accidentRecord 220251340012
    Mills Plant · 4800617

    Days away from work only

    Accident narrative

    EE was barring mud out a rail-car when EE slipped and hit the big toe area of EE's right foot on one of the interior ribs of the rail-car. EE broke EE's big toe and bruised the top of EE's foot.

  23. Regular Safety and Health Inspection

    inspectionRecord F01255D
    WORLAND PLANT · 4800987

    6.5 on-site hours reported

  24. Construction and maintenance of guards.

    violationRecord 5051513
    WORLAND PLANT · 4800987

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

  25. 103 (g) Written Notification Hazard Complaint Inspectio

    inspectionRecord F01255C
    WORLAND PLANT · 4800987

    11.0 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.