No 4 Mine safety activity
MSHA violations, accident reports and inspections.
Safety activity
Methane monitors.
30 CFR 75.342(a)(4) · Significant and substantial (S&S) · $1,679.00 proposed penalty
Roof Control Technical Investigation
52.0 on-site hours reported
Regular Safety and Health Inspection
660.8 on-site hours reported
Spot Inspections
103(i) · 5.0 on-site hours reported
Mine ventilation plan; submission and approval.
30 CFR 75.370(a)(1) · $288.00 proposed penalty
Atmospheric monitoring systems.
30 CFR 75.351(k) · $288.00 proposed penalty
Slip or fall of person
Days away from work only
Accident narrative
Employee was hanging blowing curtain in the #1 Entry on #4 Section when they stepped into an uneven area (rut) with some loose rock and twisted right knee and felt a pop causing a tibial plateau fracture in right knee.
Spot Inspections
103(i) · 9.3 on-site hours reported
Self-rescue devices; inspection, testing, maintenance, repair, and recordkeeping.
30 CFR 75.1714-3(a) · $432.00 proposed penalty
Other safeguards.
30 CFR 75.1403 · $336.00 proposed penalty
Maintenance of diesel-powered equipment.
30 CFR 75.1914(a) · $288.00 proposed penalty
Power wires and cables; insulation and protection.
30 CFR 75.517 · Significant and substantial (S&S) · $1,550.00 proposed penalty
Power wires and cables; insulation and protection.
30 CFR 75.517 · Significant and substantial (S&S) · $1,550.00 proposed penalty
Mine ventilation plan; submission and approval.
30 CFR 75.370(a)(1) · $151.00 proposed penalty
Protection from falls of roof, face and ribs.
30 CFR 75.202(a) · $549.00 proposed penalty
Roof control plan.
30 CFR 75.220(a)(1) · Significant and substantial (S&S) · $2,712.00 proposed penalty
Ventilation controls.
30 CFR 75.333(h) · $549.00 proposed penalty
Slip or fall of person
Days away from work only
Accident narrative
Employee was walking outby on 4 West #1 Belt checking for splices around XC #112 when they tripped over a rock in the walkway going over the old overcast and fell into the walk side of the belt structure and top side roller and caught their right arm between the belt and the roller causing a fracture/abrasion to their right lower arm and a contusion to the right elbow.
Fall of roof or back
Accident only
Accident narrative
Intersection #112 in the #5 entry of the 4 West N-Panel seal line, was an old fault area that had a mixture of 4' resin bolts and 8' cable bolts with mesh in some areas along with some straps. It fell out just above the anchorage point of the resin pins with some of the cable bolts still hanging showing they were still secured in good roof.
Spot Inspections
103(i) · 8.3 on-site hours reported
Maintenance of incombustible content of rock dust.
30 CFR 75.403 · $432.00 proposed penalty
Maintenance of incombustible content of rock dust.
30 CFR 75.403 · $432.00 proposed penalty
Maintenance of incombustible content of rock dust.
30 CFR 75.403 · $432.00 proposed penalty
Multi-gas detectors.
30 CFR 75.1714-7(a) · $313.00 proposed penalty
Nonpermissible diesel-powered equipment; electrical system design and performance requirements.
30 CFR 75.1910(l) · $245.00 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.