Wolverine Fuels LLC safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Protection from falls of roof, face and ribs.
SUFCO · 420008930 CFR 75.202(a) · Significant and substantial (S&S)
Permissible electric face equipment; maintenance.
Fossil Rock Mine · 420121130 CFR 75.503
Maintenance of incombustible content of rock dust.
SUFCO · 420008930 CFR 75.403
Permissible electric face equipment; maintenance.
Fossil Rock Mine · 420121130 CFR 75.503
Protection from falls of roof, face and ribs.
Emery Valley Mine · 420007930 CFR 75.202(a)
Maintenance of incombustible content of rock dust.
Fossil Rock Mine · 420121130 CFR 75.403
Maintenance of incombustible content of rock dust.
Fossil Rock Mine · 420121130 CFR 75.403
Maintenance of incombustible content of rock dust.
Fossil Rock Mine · 420121130 CFR 75.403
Maintenance of incombustible content of rock dust.
SKYLINE MINE #3 · 420156630 CFR 75.403
Maintenance of incombustible content of rock dust.
SKYLINE MINE #3 · 420156630 CFR 75.403
Spot Inspections
Fossil Rock Mine · 4201211103(i) · 8.0 on-site hours reported
Permissible electric face equipment.
Emery Valley Mine · 420007930 CFR 75.501-2(a)(2)
Electric equipment; examination, testing and maintenance.
SUFCO · 420008930 CFR 75.512
Accumulation of combustible materials.
SUFCO · 420008930 CFR 75.400
Machinery and equipment; operation and maintenance.
Fossil Rock Mine · 420121130 CFR 75.1725(a)
Loading and haulage equipment; operation.
Fossil Rock Mine · 420121130 CFR 77.1607(n)
Mine ventilation plan; submission and approval.
SKYLINE MINE #3 · 420156630 CFR 75.370(a)(1)
Maintenance of incombustible content of rock dust.
SKYLINE MINE #3 · 420156630 CFR 75.403
Maintenance of incombustible content of rock dust.
SKYLINE MINE #3 · 420156630 CFR 75.403
Verbal Hazard Complaint Inspections
SKYLINE MINE #3 · 42015660.0 on-site hours reported
Permissible electric face equipment; maintenance.
Fossil Rock Mine · 420121130 CFR 75.503
Methane monitors.
Emery Valley Mine · 420007930 CFR 75.342(a)(4)
Cable fittings; suitability.
Emery Valley Mine · 420007930 CFR 75.515
Machinery and equipment; operation and maintenance.
Fossil Rock Mine · 420121130 CFR 75.1725(a)
Roof control plan.
SKYLINE MINE #3 · 420156630 CFR 75.220(a)(1)
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.
Status is from the current MSHA Mines snapshot, not the selected reporting period. Closed records can retain their last reported controller/operator.
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.