Coal production
0reported short tons
ACTIVE / OPERATOR PORTFOLIO
Asarco LLC
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA OPERATOR IDL17191
MINE PORTFOLIO
4 of 4 mines and facilities
2025-01-01 – 2026-10-18. Active records; production reporting is not required.
Material, method and type filters apply to this table. The portfolio’s status applies to the entire page. GEM fields describe their own release, not the selected MSHA year.
| Mine | Location / type | Coal · short tons | Hours worked | Violations | Accident records | On-site inspection hours |
|---|---|---|---|---|---|---|
| Hayden Concentrator0200826 · Active6/8 quarters reported | Gila, AZSurface · MSHA: Copper Ore NEC | 0 | 328,583 | 64 | 2 | 206.8 |
| MISSION/SAN XAVIER/EISENHOWER0200135 · Active6/8 quarters reported | Pima, AZSurface · MSHA: Copper Ore NEC | 0 | 1,895,215 | 137 | 14 | 472.3 |
| RAY MINE0200150 · Active6/8 quarters reported | Gila, AZSurface · MSHA: Copper Ore NEC | 0 | 1,833,894 | 186 | 25 | 783.3 |
| SILVER BELL MINING LLC0200134 · Active6/8 quarters reported | Pima, AZSurface · MSHA: Copper Ore NEC | 0 | 634,661 | 14 | 8 | 137.3 |
Production and hours sum available quarterly reports. — means unavailable; zero safety records means none in the selected imported period. Ownership reflects the current MSHA record.
LOCATION
Portfolio map
4 of 4 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Hayden Concentrator33.00722, -110.78444Open map ↗
- MISSION/SAN XAVIER/EISENHOWER31.99833, -111.05250Open map ↗
- RAY MINE33.17667, -110.98833Open map ↗
- SILVER BELL MINING LLC32.39056, -111.21667Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. All 4 mines listed under this operator were checked; 4 have reports in the available quarters. Totals use current ownership.
Hours worked
4,692,353reported employee hours
Tons per hour
0.00production ÷ hours worked
Missing values appear as —. Totals use available reports. Tons per hour requires production and hours for the same quarters and a nonzero hours total. * Striped bars mark partial mine coverage or an incomplete quarter. See the table for coverage.
Quarterly data and reporting coverage
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | 0 | 757,645 | 0.00 | 1,460 | 4/4 mines reporting |
| 2025 Q2 | 0 | 799,701 | 0.00 | 1,518 | 4/4 mines reporting |
| 2025 Q3 | 0 | 827,080 | 0.00 | 1,489 | 4/4 mines reporting |
| 2025 Q4 | 0 | 752,756 | 0.00 | 1,482 | 4/4 mines reporting |
| 2026 Q1 | 0 | 762,298 | 0.00 | 1,480 | 4/4 mines reporting |
| 2026 Q2 | 0 | 792,873 | 0.00 | 1,510 | 4/4 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
40174 significant & substantial (S&S)
Accident records
490 records classified as fatality
Proposed penalties · USD
469,910.00382 of 401 violations with amounts
On-site inspection hours
1,599.5084 inspections · 84 with hours
Counts are published records, including contractor records. * The quarter was incomplete at the snapshot date; recent counts may rise as reports arrive. — means no reported amount or hours. Portfolio totals use current membership.
Quarterly safety data
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 1 | 0 | 267.00 | 6 | 0 | 7 | 16.5 |
| 2025-Q2 | 65 | 14 | 174,297.00 | 10 | 0 | 14 | 322.3 |
| 2025-Q3 | 7 | 1 | 4,739.00 | 9 | 0 | 13 | 72.0 |
| 2025-Q4 | 91 | 9 | 71,300.00 | 5 | 0 | 15 | 326.8 |
| 2026-Q1 | 58 | 16 | 96,628.00 | 3 | 0 | 11 | 208.8 |
| 2026-Q2 | 141 | 25 | 79,057.00 | 8 | 0 | 11 | 485.5 |
| 2026-Q3 | 38 | 9 | 43,622.00 | 8 | 0 | 11 | 165.8 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 2 | 2.0 |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- SILVER BELL MINING LLC · 0200134
56.11001 · $151.00 proposed
- MISSION/SAN XAVIER/EISENHOWER · 0200135
HANDTOOLS (NONPOWERED) · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Employee was aligning the top of the cyclones with a wrench when the wrench slipped out of position causing the cyclone top cover to cause a laceration to the R index finger.
- SILVER BELL MINING LLC · 0200134
Regular Safety and Health Inspection · 41.5 on-site hours
- RAY MINE · 0200150
SLIP OR FALL OF PERSON · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Employee was exiting off of machine, stepped down onto step and foot slipped and fell to ground, resulting in laceration to the left eyebrow, received 12 sutures.
- MISSION/SAN XAVIER/EISENHOWER · 0200135
Verbal Hazard Complaint Inspections · 2.8 on-site hours
- SILVER BELL MINING LLC · 0200134
SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY
Accident narrative
on 8/11/2026 the company was notified it was deemed as a work-related injury. Employee engaged in non-work-related activities by rushing down the stairs to give another employee a fork when EE slipped and fell resulting in a lumbar compression fraction
- RAY MINE · 0200150
103 (g) Written Notification Hazard Complaint Inspectio · 4.8 on-site hours
- RAY MINE · 0200150
Verbal Hazard Complaint Inspections · 3.0 on-site hours
- RAY MINE · 0200150
DISORDERS (REPEATED TRAUMA) · OCCUPATNAL ILLNESS NOT DEG 1-6
Accident narrative
Employee was diagnosed by a doctor with a standard threshold shift in hearing in the left ear. The hearing loss is consistent with noise induced loss.
- MISSION/SAN XAVIER/EISENHOWER · 0200135
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
The injured employee was working with another employee to move a valve from one pallet to another. The valve slipped from the grasp of the helper's hand and came down on the injured employees right hand causing a crushing injury to the middle finger tip.
- MISSION/SAN XAVIER/EISENHOWER · 0200135
HANDTOOLS (NONPOWERED) · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Employee swung a hammer at a rigging strap, EE missed the rigging strap, and the momentum of the swing caused EE to strike the chute liner with EE's left hand causing the hammer to hit EE's L index finger. Gloves were worn. Six sutures were required.
- SILVER BELL MINING LLC · 0200134
HANDTOOLS (NONPOWERED) · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
EE was assisting another employee that was working on a dozer when EE's left middle finger got in the way of the hammer and was struck causing EE to need 2 sutures.
- Hayden Concentrator · 0200826
Impoundment Spot Inspection · 3.5 on-site hours
- RAY MINE · 0200150
Verbal Hazard Complaint Inspections · 12.0 on-site hours
- MISSION/SAN XAVIER/EISENHOWER · 0200135
HANDTOOLS (NONPOWERED) · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Employee was assisting with 518 hoist rope change out. While pushing on prybar to push the rope employee strained EE's L arm.
- MISSION/SAN XAVIER/EISENHOWER · 0200135
Verbal Hazard Complaint Inspections · 8.5 on-site hours
- MISSION/SAN XAVIER/EISENHOWER · 0200135
56.11001 · $151.00 proposed
- MISSION/SAN XAVIER/EISENHOWER · 0200135
56.14100(b) · $151.00 proposed
- MISSION/SAN XAVIER/EISENHOWER · 0200135
56.12030 · $151.00 proposed
- MISSION/SAN XAVIER/EISENHOWER · 0200135
56.12030 · $151.00 proposed
- MISSION/SAN XAVIER/EISENHOWER · 0200135
56.14115(b) · $151.00 proposed
- MISSION/SAN XAVIER/EISENHOWER · 0200135
56.12032 · $193.00 proposed
- MISSION/SAN XAVIER/EISENHOWER · 0200135
56.12032 · S&S · $3,184.00 proposed
- MISSION/SAN XAVIER/EISENHOWER · 0200135
56.12008 · $366.00 proposed
- MISSION/SAN XAVIER/EISENHOWER · 0200135
56.12019 · $151.00 proposed
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.