No 4 Mine safety activity
MSHA violations, accident reports and inspections.
Safety activity
Preshift examination at fixed intervals.
30 CFR 75.360(g) · $245.00 proposed penalty
Protection from falls of roof, face and ribs.
30 CFR 75.202(a) · $465.00 proposed penalty
Escapeway maps.
30 CFR 75.1505(b) · $245.00 proposed penalty
Protection from falls of roof, face and ribs.
30 CFR 75.202(a) · Significant and substantial (S&S) · $2,312.00 proposed penalty
Spot Inspections
103(i) · 1.5 on-site hours reported
Emergency Response Plan; refuge alternatives.
30 CFR 75.1507(a)(9) · $366.00 proposed penalty
Ventilation controls.
30 CFR 75.333(c)(3) · $245.00 proposed penalty
Maintenance of belt conveyors and belt conveyor entries.
30 CFR 75.1731(a) · $245.00 proposed penalty
Accumulation of combustible materials.
30 CFR 75.400 · $432.00 proposed penalty
Grounding metallic frames, casings, and other enclosures of electric equipment.
30 CFR 75.701 · $245.00 proposed penalty
Short circuit protection of trailing cables.
30 CFR 75.601 · $366.00 proposed penalty
Power centers.
30 CFR 75.825(d) · $245.00 proposed penalty
Verbal Hazard Complaint Inspections
3.0 on-site hours reported
Roof Control Technical Investigation
42.5 on-site hours reported
Preshift examination at fixed intervals.
30 CFR 75.360(b) · $2,712.00 proposed penalty
Mine ventilation plan; submission and approval.
30 CFR 75.370(a)(1) · $2,936.00 proposed penalty
Spot Inspections
103(i) · 5.5 on-site hours reported
Regular Safety and Health Inspection
680.3 on-site hours reported
Spot Inspections
103(i) · 4.0 on-site hours reported
Spot Inspections
103(i) · 5.3 on-site hours reported
Spot Inspections
103(i) · 4.8 on-site hours reported
Nonpermissible diesel-powered equipment; design and performance requirements.
30 CFR 75.1909(a)(3)(x) · $226.00 proposed penalty
Power wires and cables; insulation and protection.
30 CFR 75.517 · Significant and substantial (S&S) · $1,126.00 proposed penalty
Protection from falls of roof, face and ribs.
30 CFR 75.202(a) · $432.00 proposed penalty
Roof control plan.
30 CFR 75.220(a)(1) · Significant and substantial (S&S) · $2,133.00 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.