No 4 Mine safety activity
MSHA violations, accident reports and inspections.
Safety activity
Machinery and equipment; operation and maintenance.
30 CFR 75.1725(a) · Significant and substantial (S&S) · $1,431.00 proposed penalty
Machinery and equipment; operation and maintenance.
30 CFR 75.1725(a) · Significant and substantial (S&S) · $1,431.00 proposed penalty
Machinery and equipment; operation and maintenance.
30 CFR 75.1725(a) · $288.00 proposed penalty
Protection from falls of roof, face and ribs.
30 CFR 75.202(a) · Significant and substantial (S&S) · $2,503.00 proposed penalty
Protection from falls of roof, face and ribs.
30 CFR 75.202(a) · $504.00 proposed penalty
Escapeways; bituminous and lignite mines.
30 CFR 75.380(d)(1) · Significant and substantial (S&S) · $2,936.00 proposed penalty
Accumulation of combustible materials.
30 CFR 75.400 · $465.00 proposed penalty
Methane monitors.
30 CFR 75.342(a)(4) · $245.00 proposed penalty
Electric equipment; examination, testing and maintenance.
30 CFR 75.512 · Significant and substantial (S&S) · $4,047.00 proposed penalty
Permissible electric face equipment; maintenance.
30 CFR 75.503 · Significant and substantial (S&S) · $5,144.00 proposed penalty
Roof control plan.
30 CFR 75.220(a)(1) · Significant and substantial (S&S) · $2,312.00 proposed penalty
Spot Inspections
103(i) · 9.3 on-site hours reported
Accumulation of combustible materials.
30 CFR 75.400 · $465.00 proposed penalty
Mine ventilation plan; submission and approval.
30 CFR 75.370(a)(1) · $313.00 proposed penalty
Roof control plan.
30 CFR 75.220(a)(1) · $465.00 proposed penalty
Condition and examination of firefighting equipment.
30 CFR 75.1100-3 · $267.00 proposed penalty
Spot Inspections
103(i) · 6.0 on-site hours reported
Loading and haulage equipment; inspection and maintenance.
30 CFR 77.1606(c) · Significant and substantial (S&S) · $1,219.00 proposed penalty
Identification of circuit breakers.
30 CFR 75.904 · $245.00 proposed penalty
Short circuit protection of trailing cables.
30 CFR 75.601 · $245.00 proposed penalty
Maintenance of belt conveyors and belt conveyor entries.
30 CFR 75.1731(a) · $267.00 proposed penalty
Roof control plan.
30 CFR 75.220(a)(1) · $465.00 proposed penalty
Maintenance of belt conveyors and belt conveyor entries.
30 CFR 75.1731(b) · $245.00 proposed penalty
Accumulation of combustible materials.
30 CFR 75.400 · $465.00 proposed penalty
Maintenance of incombustible content of rock dust.
30 CFR 75.403 · $288.00 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.