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Stonehenge Quarry LLC 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. Housekeeping.

    violationRecord 5171706
    Thunder Stone Quarry LLC · 2902537

    30 CFR 56.20003(a) · Significant and substantial (S&S) · $1,126.00 proposed penalty

  2. Construction and maintenance of guards.

    violationRecord 5171705
    Thunder Stone Quarry LLC · 2902537

    30 CFR 56.14112(a)(1) · $226.00 proposed penalty

  3. Barricades and warning signs.

    violationRecord 5171704
    Thunder Stone Quarry LLC · 2902537

    30 CFR 56.20011 · $226.00 proposed penalty

  4. Construction and maintenance of guards.

    violationRecord 5171703
    Thunder Stone Quarry LLC · 2902537

    30 CFR 56.14112(a)(1) · $226.00 proposed penalty

  5. Eye protection.

    violationRecord 5171702
    Thunder Stone Quarry LLC · 2902537

    30 CFR 56.15004 · Significant and substantial (S&S) · $1,126.00 proposed penalty

  6. Protection for openings around travelways.

    violationRecord 5171699
    Thunder Stone Quarry LLC · 2902537

    30 CFR 57.11012 · $336.00 proposed penalty

  7. Compliance Follow-up Inspection

    inspectionRecord F033C31
    Thunder Stone Quarry LLC · 2902537

    0.5 on-site hours reported

  8. New task training.

    violationRecord 5003199
    Thunder Stone Quarry LLC · 2902537

    30 CFR 46.7(a) · $252.00 proposed penalty

  9. Berms or guardrails.

    violationRecord 5003198
    Thunder Stone Quarry LLC · 2902537

    30 CFR 56.9300(a) · Significant and substantial (S&S) · $1,679.00 proposed penalty

  10. Safety defects; examination, correction and records.

    violationRecord 5003197
    Thunder Stone Quarry LLC · 2902537

    30 CFR 56.14100(a) · $336.00 proposed penalty

  11. Horns and backup alarms.

    violationRecord 5003196
    Thunder Stone Quarry LLC · 2902537

    30 CFR 56.14132(a) · $336.00 proposed penalty

  12. First-aid materials.

    violationRecord 5003195
    Thunder Stone Quarry LLC · 2902537

    30 CFR 56.15001 · $226.00 proposed penalty

  13. Regular Safety and Health Inspection

    inspectionRecord F013D21
    Thunder Stone Quarry LLC · 2902537

    13.0 on-site hours reported

  14. Compliance Follow-up Inspection

    inspectionRecord 6938197
    Thunder Stone Quarry LLC · 2902537

    1.5 on-site hours reported

  15. Regular Safety and Health Inspection

    inspectionRecord F019B76
    Thunder Stone Quarry LLC · 2902537

    7.5 on-site hours reported

  16. Safety defects; examination, correction and records.

    violationRecord 9994348
    Thunder Stone Quarry LLC · 2902537

    30 CFR 56.14100(b) · $226.00 proposed penalty

  17. Inspection.

    violationRecord 9994347
    Thunder Stone Quarry LLC · 2902537

    30 CFR 56.4201(a)(2) · $226.00 proposed penalty

  18. Moving machine parts.

    violationRecord 9994346
    Thunder Stone Quarry LLC · 2902537

    30 CFR 56.14107(a) · $336.00 proposed penalty

  19. Overhead drive belts.

    violationRecord 9994345
    Thunder Stone Quarry LLC · 2902537

    30 CFR 56.14108 · $226.00 proposed penalty

  20. Housekeeping.

    violationRecord 9994344
    Thunder Stone Quarry LLC · 2902537

    30 CFR 56.20003(a) · $226.00 proposed penalty

  21. Construction and maintenance of guards.

    violationRecord 9994343
    Thunder Stone Quarry LLC · 2902537

    30 CFR 56.14112(a)(1) · $336.00 proposed penalty

  22. Flying or falling materials.

    violationRecord 9994342
    Thunder Stone Quarry LLC · 2902537

    30 CFR 56.14110 · $226.00 proposed penalty

  23. Protection for openings around travelways.

    violationRecord 9994341
    Thunder Stone Quarry LLC · 2902537

    30 CFR 56.11012 · $755.00 proposed penalty

  24. Barricades and warning signs.

    violationRecord 9994340
    Thunder Stone Quarry LLC · 2902537

    30 CFR 56.20011 · $226.00 proposed penalty

  25. Housekeeping.

    violationRecord 9994339
    Thunder Stone Quarry LLC · 2902537

    30 CFR 56.20003(b) · Significant and substantial (S&S) · $1,126.00 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.