LEER MINE safety activity
MSHA violations, accident reports and inspections.
Safety activity
Drill dust control at underground areas of underground mines.
30 CFR 72.630(b) · $151.00 proposed penalty
Spot Inspections
103(i) · 10.0 on-site hours reported
Regular Safety and Health Inspection
264.8 on-site hours reported
Spot Inspections
103(i) · 6.8 on-site hours reported
Accumulation of combustible materials.
30 CFR 75.400 · $336.00 proposed penalty
Maintenance of belt conveyors and belt conveyor entries.
30 CFR 75.1731(a) · $151.00 proposed penalty
Explosives, handling and use.
30 CFR 77.1303(d) · $151.00 proposed penalty
Machinery and equipment; operation and maintenance.
30 CFR 75.1725(a) · $151.00 proposed penalty
Drill dust control at underground areas of underground mines.
30 CFR 72.630(b) · $151.00 proposed penalty
Accumulation of combustible materials.
30 CFR 75.400 · Significant and substantial (S&S) · $1,679.00 proposed penalty
Criteria—Belt conveyors.
30 CFR 75.1403-5(g) · Significant and substantial (S&S) · $959.00 proposed penalty
Spot Inspections
103(i) · 8.3 on-site hours reported
Spot Inspections
103(i) · 6.3 on-site hours reported
Methane monitors.
30 CFR 75.342(a)(4) · $151.00 proposed penalty
Mine ventilation plan; submission and approval.
30 CFR 75.370(a)(1) · $193.00 proposed penalty
Other safeguards.
30 CFR 75.1403 · $151.00 proposed penalty
Mine ventilation plan; submission and approval.
30 CFR 75.370(a)(1) · $151.00 proposed penalty
Fire suppression systems for diesel-powered equipment and fuel transportation units.
30 CFR 75.1911(h) · $151.00 proposed penalty
Accumulation of combustible materials.
30 CFR 75.400 · $151.00 proposed penalty
Maintenance of belt conveyors and belt conveyor entries.
30 CFR 75.1731(a) · $245.00 proposed penalty
Atmospheric monitoring systems.
30 CFR 75.351(e)(1)(iv) · $642.00 proposed penalty
Other safeguards.
30 CFR 75.1403 · $151.00 proposed penalty
Other safeguards.
30 CFR 75.1403 · $151.00 proposed penalty
Drill dust control at underground areas of underground mines.
30 CFR 72.630(b) · $151.00 proposed penalty
Mine ventilation plan; submission and approval.
30 CFR 75.370(a)(1) · $151.00 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.