Rio Tinto Group safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Housekeeping.
Copperton Concentrator · 420199630 CFR 56.20003(a) · $336.00 proposed penalty
Insulation and fittings for power wires and cables.
Copperton Concentrator · 420199630 CFR 56.12008 · $165.00 proposed penalty
Horns and backup alarms.
Copperton Concentrator · 420199630 CFR 56.14132(a) · Significant and substantial (S&S) · $818.00 proposed penalty
Oxygen cylinder storage.
Copperton Concentrator · 420199630 CFR 56.4601 · $151.00 proposed penalty
Safety defects; examination, correction and records.
Copperton Concentrator · 420199630 CFR 56.14100(c) · $151.00 proposed penalty
Safety defects; examination, correction and records.
Copperton Concentrator · 420199630 CFR 56.14100(c) · $151.00 proposed penalty
Electrical conductors.
Copperton Concentrator · 420199630 CFR 56.12004 · $432.00 proposed penalty
Safety defects; examination, correction and records.
Copperton Concentrator · 420199630 CFR 56.14100(c) · $151.00 proposed penalty
Safety defects; examination, correction and records.
Copperton Concentrator · 420199630 CFR 56.14100(c) · $151.00 proposed penalty
Safety defects; examination, correction and records.
Copperton Concentrator · 420199630 CFR 56.14100(c) · $193.00 proposed penalty
Handtools (nonpowered)
Boron Operations · 0400743Dys awy frm wrk & restrctd act
Accident narrative
While using an Iron Worker to punch out a metal plate. The Iron Worker dye broke and struck the employee in the chest.
Handtools (nonpowered)
Bingham Canyon Mine · 4200149No dys awy frm wrk,no rstr act
Accident narrative
Craft A was turning a half inch ratchet while Craft B was holding the torque multiplier using an extended handle and wrench. Craft B's hand slipped, and the craft's middle finger was pinched between the wrench and the wall of the tank.
103 (g) Written Notification Hazard Complaint Inspectio
Kennecott Keystone Underground · 42013926.0 on-site hours reported
Safety defects; examination, correction and records.
Kennecott Keystone Underground · 420139230 CFR 57.14100(b) · Significant and substantial (S&S) · $1,126.00 proposed penalty
Safety defects; examination, correction and records.
Kennecott Keystone Underground · 420139230 CFR 57.14100(b) · Significant and substantial (S&S) · $432.00 proposed penalty
Distribution boxes.
Copperton Concentrator · 420199630 CFR 56.12006 · $432.00 proposed penalty
Slip or fall of person
Bingham Canyon Mine · 4200149Dys awy frm wrk & restrctd act
Accident narrative
IP stated that they were at the mine sampling and due to the wet conditions, they lost their balance and fell down. The IP continued working throughout the shift and then advised another employee later in the day that their ankle was sore and went home. Seen at clinic on 10/16/2025.
Requirement for container labels.
Copperton Concentrator · 420199630 CFR 47.41(a) · $151.00 proposed penalty
Berms or guardrails.
Copperton Concentrator · 420199630 CFR 56.9300(a) · $1,320.00 proposed penalty
Safe access.
Copperton Concentrator · 420199630 CFR 56.11001 · $267.00 proposed penalty
Disorders (repeated trauma)
Boron Operations · 0400743Occupatnal illness not deg 1-6
Accident narrative
Hearing loss
Distribution boxes.
Copperton Concentrator · 420199630 CFR 56.12006 · $549.00 proposed penalty
Safety defects; examination, correction and records.
Copperton Concentrator · 420199630 CFR 56.14100(c) · $165.00 proposed penalty
Horns and backup alarms.
Copperton Concentrator · 420199630 CFR 56.14132(b)(1) · $165.00 proposed penalty
Moving machine parts.
Copperton Concentrator · 420199630 CFR 56.14107(a) · $336.00 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.