No 4 Mine safety activity
MSHA violations, accident reports and inspections.
Safety activity
Preshift examination at fixed intervals.
30 CFR 75.360(b)(11)(iv) · Significant and substantial (S&S) · $1,679.00 proposed penalty
Machinery and equipment; operation and maintenance.
30 CFR 75.1725(a) · Significant and substantial (S&S) · $3,184.00 proposed penalty
Permissible electric face equipment; maintenance.
30 CFR 75.503 · $432.00 proposed penalty
Roof control plan.
30 CFR 75.220(a)(1) · $432.00 proposed penalty
Electric equipment; examination, testing and maintenance.
30 CFR 75.512 · $883.00 proposed penalty
Maintenance of belt conveyors and belt conveyor entries.
30 CFR 75.1731(a) · Significant and substantial (S&S) · $1,219.00 proposed penalty
Accumulation of combustible materials.
30 CFR 75.400 · Significant and substantial (S&S) · $2,312.00 proposed penalty
Ventilation controls.
30 CFR 75.333(h) · $226.00 proposed penalty
Spot Inspections
103(i) · 5.5 on-site hours reported
Initial measurement.
30 CFR 75.1432 · $1,550.00 proposed penalty
Initial measurement.
30 CFR 75.1432 · $1,320.00 proposed penalty
Loading and haulage equipment; operation.
30 CFR 77.1607(i) · Significant and substantial (S&S) · $1,126.00 proposed penalty
Roof control plan.
30 CFR 75.220(a)(1) · $398.00 proposed penalty
Warning devices.
30 CFR 75.208 · $226.00 proposed penalty
Protection from falls of roof, face and ribs.
30 CFR 75.202(a) · $432.00 proposed penalty
Storage of liquefied and nonliquefied compressed gas cylinders; requirements.
30 CFR 75.1106-3(a)(2) · $226.00 proposed penalty
Protection from falls of roof, face and ribs.
30 CFR 75.202(a) · $432.00 proposed penalty
Mechanical equipment guards.
30 CFR 75.1722(b) · Significant and substantial (S&S) · $1,679.00 proposed penalty
Health Technical Investigation
21.0 on-site hours reported
Spot Inspections
103(i) · 7.0 on-site hours reported
Protection from falls of roof, face and ribs.
30 CFR 75.202(a) · $432.00 proposed penalty
Impoundment Spot Inspection
11.0 on-site hours reported
Permissible electric face equipment; maintenance.
30 CFR 75.503 · $288.00 proposed penalty
Machinery and equipment; operation and maintenance.
30 CFR 75.1725(a) · Significant and substantial (S&S) · $1,818.00 proposed penalty
Permanent splicing of trailing cables.
30 CFR 75.604(b) · $755.00 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.