ACTIVE / OPERATOR PORTFOLIO

Kennecott Utah Copper LLC

Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.

MSHA OPERATOR IDL11154

MINE PORTFOLIO

3 of 3 mines and facilities

2025-01-01 – 2026-10-18. Active records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
Bingham Canyon Mine4200149 · Active6/8 quarters reportedSalt Lake, UTSurface · MSHA: Copper Ore NEC03,389,047246461,136.0
Copperton Concentrator4201996 · Active6/8 quarters reportedSalt Lake, UTFacility · MSHA: Copper Ore NEC0928,6742145698.8
Kennecott Keystone Underground4201392 · Active6/8 quarters reportedSalt Lake, UTUnderground · MSHA: Copper Ore NEC0184,02010510514.3

LOCATION

Portfolio map

3 of 3 mines with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-18Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

565

77 significant & substantial (S&S)

  1. 2025 Q195
  2. 2025 Q249
  3. 2025 Q3116
  4. 2025 Q4151
  5. 2026 Q121
  6. 2026 Q2123
  7. 2026 Q310
  8. 2026 Q4 *0

Accident records

61

1 records classified as fatality

  1. 2025 Q112
  2. 2025 Q25
  3. 2025 Q318
  4. 2025 Q49
  5. 2026 Q17
  6. 2026 Q23
  7. 2026 Q37
  8. 2026 Q4 *0

Proposed penalties · USD

643,998.00

550 of 565 violations with amounts

  1. 2025 Q1104,932
  2. 2025 Q253,306
  3. 2025 Q3135,342
  4. 2025 Q4152,828
  5. 2026 Q122,590
  6. 2026 Q2174,849
  7. 2026 Q3151
  8. 2026 Q4 *—

On-site inspection hours

2,349.00

56 inspections · 56 with hours

  1. 2025 Q1559.75
  2. 2025 Q2182.00
  3. 2025 Q3427.75
  4. 2025 Q4392.00
  5. 2026 Q1163.75
  6. 2026 Q2526.00
  7. 2026 Q397.75
  8. 2026 Q4 *0.00
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q19512104,932.001208559.8
2025-Q249553,306.00508182.0
2025-Q311626135,342.0018013427.8
2025-Q415120152,828.00908392.0
2026-Q121222,590.00714163.8
2026-Q212311174,849.00308526.0
2026-Q3101151.0070597.8
2026-Q4 *00—0020.0

Most cited CFR sections

All violations issued in the selected period. Counts combine subsections.

Safety activity

  1. violation5055403
    Kennecott Keystone Underground · 4201392

    57.14100(c) · $151.00 proposed

  2. violation5055402
    Kennecott Keystone Underground · 4201392

    57.13021 · $151.00 proposed

  3. violation5055401
    Kennecott Keystone Underground · 4201392

    47.41(a) · $1,679.00 proposed

  4. violation5050900
    Kennecott Keystone Underground · 4201392

    57.12004 · $3,736.00 proposed

  5. violation5050899
    Kennecott Keystone Underground · 4201392

    57.13021 · $151.00 proposed

  6. violation5050898
    Kennecott Keystone Underground · 4201392

    57.12032 · $267.00 proposed

  7. accident220252320022
    Bingham Canyon Mine · 4200149

    POWERED HAULAGE · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    At 23:50, IP supervisor called to notify EMT of a minor medical. IP arrived and stated that on 8/5 at 06:30 while riding the shuttle up from Park at Lark, they felt pain and described the feeling like a bee sting in lower left abdomen between left hip and belly button which had been gradually worsening throughout the day. IP was referred to ER for further level of care.

  8. violation5050897
    Kennecott Keystone Underground · 4201392

    57.12013(b) · $3,736.00 proposed

  9. violation5050896
    Kennecott Keystone Underground · 4201392

    57.14107(a) · $1,679.00 proposed

  10. inspection6949595
    Kennecott Keystone Underground · 4201392

    Regular Safety and Health Inspection · 43.5 on-site hours

  11. inspectionF00B1CA
    Bingham Canyon Mine · 4200149

    Verbal Hazard Complaint Inspections · 1.0 on-site hours

  12. inspectionF00B1C9
    Kennecott Keystone Underground · 4201392

    Verbal Hazard Complaint Inspections · 1.0 on-site hours

  13. violation5053178
    Kennecott Keystone Underground · 4201392

    57.14100(b) · $288.00 proposed

  14. accident220252590003
    Bingham Canyon Mine · 4200149

    HANDLING OF MATERIALS · DYS AWY FRM WRK & RESTRCTD ACT

    Accident narrative

    IP took a break and when exiting truck, the wind pushed the door and pulled it out from their hand. IP described pain as sharp and achy. EMT referred IP to go to RMMC for further evaluation and left with supervisor. Worker has been able to perform all of their normal duties but was prescribed physical therapy on 09/12, escalating this to a medical treatment case injury.

  15. accident220252040007
    Bingham Canyon Mine · 4200149

    POWERED HAULAGE · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    After loading at the ES59, the HT471 operator noticed lower back discomfort. The operator attempted to continue operating to see if the pains would subside. After about a half hour, and the pains continued, the operator reported the pains to their supervisor. The operator was assessed by onsite ERT's, EMT then RMCC where they were released back to duty with restrictions.

  16. accident220252030008
    Copperton Concentrator · 4201996

    EXPLODING VESSELS UNDER PRESSURE · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    Miner attempted to puncture aerosol can on vice at which time the can exploded, lacerating EE's face and chipping a tooth requiring stitches and outpatient cosmetic dentistry

  17. accident220251990003
    Bingham Canyon Mine · 4200149

    DISORDERS (PHYSICAL AGENTS) · OCCUPATNAL ILLNESS NOT DEG 1-6

    Accident narrative

    Local temperatures reached 97 degrees F just prior to the illness. Employee became ill and was treated for heat exhaustion by on-site EMT's before being transported to a local hospital. It was determined that this employee was dehydrated/Heat Exhausted.

  18. accident220251990009
    Bingham Canyon Mine · 4200149

    POWERED HAULAGE · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    HT driver stated their haul truck was getting loaded around 9pm last night and they noted neck and back pain at the time of the load. EE continued driving and had 2 subsequent loads that worsened the pain in low back and neck. Employee stated they had a hard time breathing due to the muscle tightness.

  19. accident220251980008
    Copperton Concentrator · 4201996

    MACHINERY · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    While installing Tech screws into a panel, a metal shaving went in to employee's right eye. EE did not notice it until EE got in EE's car as was going home around 16:20. It felt itchy, and EE began rubbing it. EE didn't think much of it and EE thought EE would just flush it out when EE got home. The pain intensified, and EE called EE's supervisor to report it.

  20. inspection6944083
    Copperton Concentrator · 4201996

    Impoundment Spot Inspection · 10.5 on-site hours

  21. inspectionF00424B
    Copperton Concentrator · 4201996

    Compliance Follow-up Inspection · 0.0 on-site hours

  22. violation6941228
    Copperton Concentrator · 4201996

    56.12028

  23. accident220251970020
    Bingham Canyon Mine · 4200149

    OTHER · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    At 14:50, IP had been clearing brush and felt a sting on their neck. IP told ERT/EMT that they were feeling numbness and tingling in extremities. IP stated they threw up after the sting. IP vitals were elevated. EMT transferred IP into ERT ambulance and transported IP to meet with UFA at Notch gate at 15:35.

  24. accident220251950029
    Bingham Canyon Mine · 4200149

    SLIP OR FALL OF PERSON · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    At approximately 04:30 am, Craftsman was walking from change house to truck shop through haul truck access road walkway. As they approached eastern side, they stepped on a rock and was knocked off balance, but not falling. The felt a crack/pop in lower back. The pain increased later in the shift. Supervisor was notified at 10:30am and then taken to clinic for further evaluation.

  25. accident220251950006
    Bingham Canyon Mine · 4200149

    HANDLING OF MATERIALS · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    Employee was moving core boxes from an elevated platform to bench and felt a pop in their right knee with minor discomfort. Continued to work for the remainder of the shift but knee progressively got worse through the night. On 7/10 at 07:33, IP arrived with supervisor at first aid exam room. EMT performed assessment and vital signs were normal. Referred to RMMC.

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-18.

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.

CFR headings link to the current Title 30 index; they are not historical legal determinations.

SELECTED PORTFOLIO

1 linked controller.

Relationships reflect the selected mine status and current MSHA controller/operator fields.