Freeport-McMoRan Sierrita Ops.
Active
Surface
Metal
Operator: Freeport-McMoRan Sierrita Ops.
Controller: Freeport-McMoRan Inc
Location: Green Valley, Pima County, AZ
Employees: 1,074
2,475
Violations
468
S&S Violations
774
Accidents
$2.2M
Penalties
Recent Violations
View all 2,475 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 02/27/2026 | 47.41(a) | Non-S&S | ModNegligence | $0 |
| 02/27/2026 | 47.41(a) | Non-S&S | LowNegligence | $0 |
| 02/26/2026 | 56.12028 | Non-S&S | ModNegligence | $0 |
| 02/26/2026 | 56.12028 | Non-S&S | ModNegligence | $0 |
| 02/26/2026 | 56.12028 | Non-S&S | ModNegligence | $0 |
| 02/26/2026 | 56.12028 | Non-S&S | ModNegligence | $0 |
| 02/26/2026 | 56.12028 | Non-S&S | ModNegligence | $0 |
| 02/26/2026 | 50.30(a) | Non-S&S | ModNegligence | $0 |
| 02/26/2026 | 48.25(a) | S&S | HighNegligence | $0 |
| 02/24/2026 | 56.12008 | Non-S&S | ModNegligence | $0 |
| 02/24/2026 | 56.11001 | S&S | ModNegligence | $0 |
| 02/24/2026 | 56.11001 | Non-S&S | ModNegligence | $0 |
| 02/24/2026 | 56.4230(c) | Non-S&S | LowNegligence | $0 |
| 02/22/2026 | 56.12018 | Non-S&S | ModNegligence | $0 |
| 02/22/2026 | 56.4201(a)(1) | Non-S&S | ModNegligence | $0 |
| 02/21/2026 | 56.12018 | Non-S&S | ModNegligence | $0 |
| 02/21/2026 | 56.12018 | Non-S&S | ModNegligence | $0 |
| 02/21/2026 | 56.12018 | Non-S&S | ModNegligence | $0 |
| 02/21/2026 | 56.12018 | Non-S&S | ModNegligence | $0 |
| 02/21/2026 | 56.12018 | Non-S&S | ModNegligence | $0 |
Accidents & Injuries
View all 774 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 01/16/2026 | DISORDERS (REPEATED TRAUMA) | OCCUPATNAL ILLNESS NOT DEG 1-6 | 10d restricted |
| 01/02/2026 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 5d lost |
| 12/30/2025 | HANDTOOLS (NONPOWERED) | DAYS AWAY FROM WORK ONLY | 4d lost |
| 12/22/2025 | SLIP OR FALL OF PERSON | DAYS RESTRICTED ACTIVITY ONLY | 13d restricted |
| 11/10/2025 | MACHINERY | DAYS AWAY FROM WORK ONLY | 2d lost |
| 11/06/2025 | MACHINERY | DAYS AWAY FROM WORK ONLY | 4d lost |
| 10/06/2025 | OCCUPATIONAL SKIN DISEASES | OCCUPATNAL ILLNESS NOT DEG 1-6 | None |
| 10/03/2025 | HANDLING OF MATERIALS | PERM TOT OR PERM PRTL DISABLTY | 25d lost, 8d restricted |
| 09/30/2025 | HANDTOOLS (NONPOWERED) | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 09/28/2025 | HANDLING OF MATERIALS | DAYS AWAY FROM WORK ONLY | 10d lost |
Inspections
View all 217 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 02/11/2026 | 02/17/2026 | 11.00 | 1 |
| 01/25/2026 | 433.75 | 8 | |
| 12/30/2025 | 12/30/2025 | 8.00 | 1 |
| 10/31/2025 | 10/31/2025 | 1.75 | 1 |
| 08/14/2025 | 08/19/2025 | 7.00 | 1 |
| 08/07/2025 | 08/13/2025 | 6.50 | 1 |
| 06/20/2025 | 06/24/2025 | 16.25 | 1 |
| 05/01/2025 | 06/30/2025 | 17.50 | 1 |
| 04/30/2025 | 04/30/2025 | 10.50 | 1 |
| 04/21/2025 | 04/22/2025 | 9.75 | 1 |
Mine Details
MSHA Mine ID0200144
Mine TypeSurface
StatusActive
CommodityMetal
SIC DescriptionCopper Ore NEC
Employees1,074
Days/Week7.0
Hours/Shift12.0
Coordinates31.8758330, -111.1011110
Nearest TownGreen Valley
Related Mines
MISSION/SAN XAVIER/EISENHOWER
Tucson, Pima County, AZ
1,688 violations
Active
RILLITO PLANT
Rillito, Pima County, AZ
735 violations
Active
SILVER BELL MINING LLC
Tucson, Pima County, AZ
441 violations
Active
Santa Rita Plan
Sahuarita, Pima County, AZ
220 violations
Active
ORANGE GROVE
Orange Grove, Pima County, AZ
199 violations
Active
Silver Bell
Marana, Pima County, AZ
191 violations
Active
Swan Pit
Mesa, Pima County, AZ
174 violations
Active
Amrize Sand Crusher #2
Sahurita, Pima County, AZ
134 violations
Active
Frequently Asked Questions
How many MSHA violations does Freeport-McMoRan Sierrita Ops. have?
Freeport-McMoRan Sierrita Ops. has 2475 MSHA violations on record, of which 468 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $2.2M.
What type of mine is Freeport-McMoRan Sierrita Ops.?
Freeport-McMoRan Sierrita Ops. is a Surface mine producing Metal, located in Green Valley, Pima County, AZ. It currently has 1074 employees.
Has anyone been injured or killed at Freeport-McMoRan Sierrita Ops.?
According to MSHA records, Freeport-McMoRan Sierrita Ops. has 774 reported accident/injury records and 0 fatalities on file.
Who operates Freeport-McMoRan Sierrita Ops.?
Freeport-McMoRan Sierrita Ops. is operated by Freeport-McMoRan Sierrita Ops. and controlled by Freeport-McMoRan Inc. MSHA Mine ID: 0200144.