Twin State Mining, Inc. safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Mine ventilation plan; submission and approval.
MINE NO. 44 · 460952330 CFR 75.370(a)(1) · $336.00 proposed penalty
Accumulation of combustible materials.
MINE NO. 44 · 460952330 CFR 75.400 · $245.00 proposed penalty
Accumulation of combustible materials.
MINE NO. 44 · 460952330 CFR 75.400 · $226.00 proposed penalty
Permissible electric face equipment; maintenance.
MINE NO. 44 · 460952330 CFR 75.503 · $3,184.00 proposed penalty
Rock dusting.
MINE NO. 44 · 460952330 CFR 75.402 · $3,184.00 proposed penalty
Machinery and equipment; operation and maintenance.
MINE NO. 44 · 460952330 CFR 77.404(a) · $151.00 proposed penalty
Regular Safety and Health Inspection
MINE NO. 44 · 4609523173.5 on-site hours reported
Self-rescue devices; inspection, testing, maintenance, repair, and recordkeeping.
MINE NO. 44 · 460952330 CFR 75.1714-3(a) · $366.00 proposed penalty
Main mine fan examinations and records.
MINE NO. 44 · 460952330 CFR 75.312(a) · $3,184.00 proposed penalty
Health Technical Investigation
MINE NO. 44 · 460952314.3 on-site hours reported
Mine ventilation plan; submission and approval.
MINE NO. 44 · 460952330 CFR 75.370(a)(1) · $755.00 proposed penalty
Drill dust control at underground areas of underground mines.
MINE NO. 44 · 460952330 CFR 72.630(b) · $398.00 proposed penalty
Health Technical Investigation
MINE NO. 44 · 46095238.5 on-site hours reported
Roof control plan.
MINE NO. 44 · 460952330 CFR 75.220(a)(1) · $549.00 proposed penalty
Mine ventilation plan; submission and approval.
MINE NO. 44 · 460952330 CFR 75.370(a)(1) · Significant and substantial (S&S) · $1,679.00 proposed penalty
Spot Inspection
MINE NO. 44 · 460952313.3 on-site hours reported
Mine ventilation plan; submission and approval.
MINE NO. 44 · 460952330 CFR 75.370(a)(1) · $177.00 proposed penalty
Roof control plan.
MINE NO. 44 · 460952330 CFR 75.220(a)(1) · $209.00 proposed penalty
Loading and haulage equipment; inspection and maintenance.
MINE NO. 44 · 460952330 CFR 77.1606(c) · $151.00 proposed penalty
Loading and haulage equipment; inspection and maintenance.
MINE NO. 44 · 460952330 CFR 77.1606(c) · $151.00 proposed penalty
Loading and haulage equipment; inspection and maintenance.
MINE NO. 44 · 460952330 CFR 77.1606(c) · $151.00 proposed penalty
Mobile equipment; automatic warning devices.
MINE NO. 44 · 460952330 CFR 77.410(b) · $151.00 proposed penalty
Accumulation of combustible materials.
MINE NO. 44 · 460952330 CFR 75.400 · $177.00 proposed penalty
Permissible electric face equipment; maintenance.
MINE NO. 44 · 460952330 CFR 75.503 · $151.00 proposed penalty
Permissible electric face equipment; maintenance.
MINE NO. 44 · 460952330 CFR 75.503 · $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.
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.