ACTIVE / OPERATOR PORTFOLIO

Freeport-McMoRan Sierrita Ops.

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

MSHA OPERATOR IDL17248

MINE PORTFOLIO

1 of 1 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
Freeport-McMoRan Sierrita Ops.0200144 · Active6/8 quarters reportedPima, AZSurface · MSHA: Copper Ore NEC04,067,21015560707.0

LOCATION

Mine location

1 of 1 mine 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

155

31 significant & substantial (S&S)

  1. 2025 Q10
  2. 2025 Q238
  3. 2025 Q31
  4. 2025 Q43
  5. 2026 Q169
  6. 2026 Q20
  7. 2026 Q344
  8. 2026 Q4 *0

Accident records

60

0 records classified as fatality

  1. 2025 Q15
  2. 2025 Q213
  3. 2025 Q311
  4. 2025 Q46
  5. 2026 Q15
  6. 2026 Q212
  7. 2026 Q38
  8. 2026 Q4 *0

Proposed penalties · USD

169,000.00

150 of 155 violations with amounts

  1. 2025 Q1—
  2. 2025 Q284,998
  3. 2025 Q3193
  4. 2025 Q41,120
  5. 2026 Q158,051
  6. 2026 Q2—
  7. 2026 Q324,638
  8. 2026 Q4 *—

On-site inspection hours

707.00

23 inspections · 23 with hours

  1. 2025 Q17.00
  2. 2025 Q2192.00
  3. 2025 Q34.50
  4. 2025 Q43.00
  5. 2026 Q1277.50
  6. 2026 Q215.50
  7. 2026 Q3207.50
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q100—5017.0
2025-Q238884,998.001305192.0
2025-Q310193.0011024.5
2025-Q4311,120.006023.0
2026-Q1691958,051.00503277.5
2026-Q200—120315.5
2026-Q344324,638.00807207.5
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5046503
    Freeport-McMoRan Sierrita Ops. · 0200144

    56.14100(b) · $165.00 proposed

  2. violation5046502
    Freeport-McMoRan Sierrita Ops. · 0200144

    56.4104(b) · $366.00 proposed

  3. violation5045761
    Freeport-McMoRan Sierrita Ops. · 0200144

    56.12004 · $165.00 proposed

  4. violation5045760
    Freeport-McMoRan Sierrita Ops. · 0200144

    56.12004 · $151.00 proposed

  5. inspectionF011E0B
    Freeport-McMoRan Sierrita Ops. · 0200144

    Regular Safety and Health Inspection · 183.3 on-site hours

  6. violation5046501
    Freeport-McMoRan Sierrita Ops. · 0200144

    56.4201(a)(2) · $165.00 proposed

  7. violation5045759
    Freeport-McMoRan Sierrita Ops. · 0200144

    56.12028 · $755.00 proposed

  8. violation5045758
    Freeport-McMoRan Sierrita Ops. · 0200144

    56.14100(b) · $366.00 proposed

  9. violation5045757
    Freeport-McMoRan Sierrita Ops. · 0200144

    56.12019 · $366.00 proposed

  10. accident220261820030
    Freeport-McMoRan Sierrita Ops. · 0200144

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Hand of employee was caught between truck bed and davit arm assembly when loading equipment into bed.

  11. accident220261750007
    Freeport-McMoRan Sierrita Ops. · 0200144

    SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee tripped while walking between the motor and handrail to assist a coworker and fell onto the grating, resulting in a pinky finger injury.

  12. accident220261690003
    Freeport-McMoRan Sierrita Ops. · 0200144

    SLIP OR FALL OF PERSON · DYS AWY FRM WRK & RESTRCTD ACT

    Accident narrative

    Employee was backing up pulling vacuum pipe out of sump and EE's foot got caught on vacuum breaker causing EE to loose EE's balance. EE rotated and landed on EE's right knee as EE was trying to catch self.

  13. accident220261770001
    Freeport-McMoRan Sierrita Ops. · 0200144

    SLIP OR FALL OF PERSON · ALL OTHER CASES (INCL 1ST AID)

    Accident narrative

    Individual attempted to dismount forklift via side steps, overstepped the last step causing to fall backwards. Individual attempted to stop impact from fall by extending arm. Left wrist was sprained in the process. Individual was seen by onsite medical team and refused further treatment, as EE didn't feel it was necessary.

  14. inspectionF004811
    Freeport-McMoRan Sierrita Ops. · 0200144

    Impoundment Spot Inspection · 4.0 on-site hours

  15. accident220261550006
    Freeport-McMoRan Sierrita Ops. · 0200144

    HANDTOOLS (NONPOWERED) · DAYS AWAY FROM WORK ONLY

    Accident narrative

    While removing a bed pin, stored energy in the component caused it to suddenly dislodge and shift the bed. The uncontrolled movement allowed the brass bar to slip and drop, pinning the employee's hand against the tire. Resulted in a hand injury from impact/pinch force.

  16. accident220261550003
    Freeport-McMoRan Sierrita Ops. · 0200144

    POWERED HAULAGE · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Loose material during loading allowed a rock to roll from the bucket and strike Cat 75, causing a rough load event. The impact broke the rear window. The operator later developed back pain and required clinic evaluation by ERT.

  17. inspectionF0370E0
    Freeport-McMoRan Sierrita Ops. · 0200144

    103 (g) Written Notification Hazard Complaint Inspectio · 6.5 on-site hours

  18. accident220261470011
    Freeport-McMoRan Sierrita Ops. · 0200144

    SLIP OR FALL OF PERSON · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    The employee met with supervisors in a parking lot on the east side of the building. After the conversation, EE turned to walk back to the office and tripped over a wheel chock (angle iron) because EE did not fully clear it. EE fell onto EE's right knee and elbow. EE was wearing steel-toe boots, and no other PPE was involved.

  19. inspectionF0370DD
    Freeport-McMoRan Sierrita Ops. · 0200144

    103 (g) Written Notification Hazard Complaint Inspectio · 5.0 on-site hours

  20. accident220261340011
    Freeport-McMoRan Sierrita Ops. · 0200144

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee felt a groin strain while cleaning but delayed reporting it until the end of the shift when the pain persisted.

  21. accident220261210011
    Freeport-McMoRan Sierrita Ops. · 0200144

    STRIKING OR BUMPING · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    Employee inspecting a hose stood up in a confined space and struck their hard hat on a frame causing their jaw to snap shut and chip a tooth with a minor gum laceration.

  22. accident220261180012
    Freeport-McMoRan Sierrita Ops. · 0200144

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee used Brakleen to remove hydraulic oil from their hands; after doing so they took a smoke break causing burns to their hands.

  23. accident220261180006
    Freeport-McMoRan Sierrita Ops. · 0200144

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    The operator was dismounting equipment using a ladder when they experienced pain and noted swelling in the knee.

  24. accident220260970036
    Freeport-McMoRan Sierrita Ops. · 0200144

    HANDLING OF MATERIALS · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    While cleaning a flowmeter for install, employee cut right finger on the sensor requiring stitches.

  25. accident220260910030
    Freeport-McMoRan Sierrita Ops. · 0200144

    HANDLING OF MATERIALS · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    While employee was removed tires from a connex for delivery, they noticed overlap of tires with an adjacent stack. As additional force was used to move the overlapped tire, the adjacent stack became unstable causing some tires to fall and strike the employee which resulted in the employee falling and straining their back.

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.