Rolling Thunder Mine safety activity
MSHA violations, accident reports and inspections.
Safety activity
Electric equipment; examination, testing and maintenance.
30 CFR 75.512 · $267.00 proposed penalty
Machinery and equipment; operation and maintenance.
30 CFR 75.1725(a) · $151.00 proposed penalty
Permanent splicing of trailing cables.
30 CFR 75.604(b) · Significant and substantial (S&S) · $818.00 proposed penalty
Permissible electric face equipment; maintenance.
30 CFR 75.503 · $151.00 proposed penalty
Drill dust control at underground areas of underground mines.
30 CFR 72.630(b) · $177.00 proposed penalty
Regular Safety and Health Inspection
253.8 on-site hours reported
Automatic emergency-parking brakes.
30 CFR 75.523-3(c)(2) · $151.00 proposed penalty
Permissible electric face equipment; maintenance.
30 CFR 75.503 · $151.00 proposed penalty
Automatic emergency-parking brakes.
30 CFR 75.523-3(c)(2) · $151.00 proposed penalty
Mine ventilation plan; submission and approval.
30 CFR 75.370(a)(1) · $151.00 proposed penalty
Examination and maintenance of firefighting equipment.
30 CFR 77.1110 · $151.00 proposed penalty
Other safeguards.
30 CFR 75.1403
Refuge alternatives.
30 CFR 75.1506(j)(3) · $642.00 proposed penalty
Rock dusting.
30 CFR 75.402 · $165.00 proposed penalty
Maintenance of belt conveyors and belt conveyor entries.
30 CFR 75.1731(a) · $177.00 proposed penalty
Electric equipment; examination, testing and maintenance.
30 CFR 75.512 · $151.00 proposed penalty
Preshift examination at fixed intervals.
30 CFR 75.360(g) · $151.00 proposed penalty
Mine ventilation plan; submission and approval.
30 CFR 75.370(a)(1) · Significant and substantial (S&S) · $642.00 proposed penalty
Accumulation of combustible materials.
30 CFR 75.400 · $165.00 proposed penalty
Water sprinkler systems; fire warning devices at belt drives.
30 CFR 75.1101-10 · $151.00 proposed penalty
Verbal Hazard Complaint Inspections
8.0 on-site hours reported
Roof control plan.
30 CFR 75.220(a)(1) · $165.00 proposed penalty
Handling of materials
No dys awy frm wrk,no rstr act
Accident narrative
While loading roof bolts onto the operators tray, the head of a roof bolt cut the left palm on EE's hand through EE's glove.
Mine ventilation plan; submission and approval.
30 CFR 75.370(a)(1) · $151.00 proposed penalty
Machinery and equipment; operation and maintenance.
30 CFR 75.1725(a) · Significant and substantial (S&S) · $267.00 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.