Crucible Deep Mine safety activity
MSHA violations, accident reports and inspections.
Safety activity
Methane monitors.
30 CFR 75.342(a)(4) · $151.00 proposed penalty
Automatic emergency-parking brakes.
30 CFR 75.523-3(c)(2) · $151.00 proposed penalty
Permanent splicing of trailing cables.
30 CFR 75.604(b) · Significant and substantial (S&S) · $2,133.00 proposed penalty
Roof control plan.
30 CFR 75.220(a)(1) · $549.00 proposed penalty
Electric equipment; examination, testing and maintenance.
30 CFR 75.512 · $151.00 proposed penalty
On-shift examination.
30 CFR 75.362(a)(2) · $177.00 proposed penalty
Mine map.
30 CFR 75.1200 · $151.00 proposed penalty
On-shift examination.
30 CFR 75.362(a)(2) · $151.00 proposed penalty
Power wires and cables; insulation and protection.
30 CFR 75.517 · $288.00 proposed penalty
Methane monitors.
30 CFR 75.342(a)(4) · $151.00 proposed penalty
Permanent splicing of trailing cables.
30 CFR 75.604(b) · Significant and substantial (S&S) · $2,712.00 proposed penalty
Electric equipment; examination, testing and maintenance.
30 CFR 75.512 · $288.00 proposed penalty
Availability of approved self-rescue devices; instruction in use and location.
30 CFR 75.1714(a) · $755.00 proposed penalty
Proximity detection systems.
30 CFR 75.1732(b)(1) · $336.00 proposed penalty
Mine ventilation plan; submission and approval.
30 CFR 75.370(a)(1) · Significant and substantial (S&S) · $1,679.00 proposed penalty
Condition and examination of firefighting equipment.
30 CFR 75.1100-3 · $151.00 proposed penalty
Short circuit protection; ratings and settings of circuit breakers.
30 CFR 75.601-1 · $151.00 proposed penalty
Permanent splicing of trailing cables.
30 CFR 75.604(b) · Significant and substantial (S&S) · $2,712.00 proposed penalty
Mechanical equipment guards.
30 CFR 75.1722(a) · $336.00 proposed penalty
Inspection of fire suppression devices.
30 CFR 75.1107-16(b) · $226.00 proposed penalty
Additional self-contained self-rescuers (SCSRs).
30 CFR 75.1714-4(b) · $151.00 proposed penalty
Electric equipment; examination, testing and maintenance.
30 CFR 75.512 · $193.00 proposed penalty
Power wires and cables; insulation and protection.
30 CFR 75.517 · Significant and substantial (S&S) · $1,679.00 proposed penalty
Roof control plan.
30 CFR 75.220(a)(1) · $193.00 proposed penalty
Accumulation of combustible materials.
30 CFR 75.400 · $226.00 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.