Coal production
0reported short tons
ALL STATUSES / CONTROLLER PORTFOLIO
Rio Tinto Group
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA CONTROLLER IDM01812
MINE PORTFOLIO
22 of 22 mines and facilities
2025-01-01 – 2026-10-18. All statuses 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 |
|---|---|---|---|---|---|---|
| Bingham Canyon Mine4200149 · Active6/8 quarters reported | Salt Lake, UTSurface · MSHA: Copper Ore NEC | 0 | 3,389,047 | 246 | 46 | 1,136.0 |
| Boron Operations0400743 · Active6/8 quarters reported | Kern, CASurface · MSHA: Boron Minerals | 0 | 2,253,991 | 140 | 14 | 626.3 |
| Copperton Concentrator4201996 · Active6/8 quarters reported | Salt Lake, UTFacility · MSHA: Copper Ore NEC | 0 | 928,674 | 214 | 5 | 698.8 |
| Kennecott Keystone Underground4201392 · Active6/8 quarters reported | Salt Lake, UTUnderground · MSHA: Copper Ore NEC | 0 | 184,020 | 105 | 10 | 514.3 |
| Owens Lake Mine0402834 · Intermittent6/8 quarters reported | Inyo, CASurface · MSHA: Trona | 0 | 14,298 | 0 | 0 | 11.0 |
| BORON OPERATIONS UNDERGROUND MIN0405366 · Abandoned | Kern, CAUnderground · MSHA: Boron Minerals | — | — | 0 | 0 | — |
| Boron Refinery0403886 · Abandoned | Kern, CAFacility · MSHA: Boron Minerals | — | — | 0 | 0 | — |
| California Clay Pit0405170 · Abandoned | Inyo, CASurface · MSHA: Common Clays NEC | — | — | 0 | 0 | — |
| Excelsior Mine4502531 · Abandoned | Whatcom, WAUnderground · MSHA: Silver Ore | — | — | 0 | 0 | — |
| FLAMBEAU MINE4702920 · Abandoned | Rusk, WISurface · MSHA: Copper Ore NEC | — | — | 0 | 0 | — |
| GERSTLEY MINE0404953 · Abandoned | Inyo, CAUnderground · MSHA: Boron Minerals | — | — | 0 | 0 | — |
| GERSTLEY MINE0405300 · Abandoned | Inyo, CAFacility · MSHA: Boron Minerals | — | — | 0 | 0 | — |
| Humboldt Mill2003420 · Abandoned | Marquette, MISurface · MSHA: Iron Ore | — | — | 0 | 0 | — |
| Kennecott Barneys Canyon Mining4202040 · Abandoned | Salt Lake, UTSurface · MSHA: Gold Ore | — | — | 0 | 0 | — |
| Ledyard Plant0600018 · Abandoned | New London, CTSurface · MSHA: Crushed, Broken Sandstone | — | — | 0 | 0 | — |
| Oceanside Plant0402304 · Abandoned | San Diego, CASurface · MSHA: Crushed, Broken Sandstone | — | — | 0 | 0 | — |
| Quartz Hill Project5001230 · Abandoned | Aleutians East, AKSurface · MSHA: Molybdenum Ore | — | — | 0 | 0 | — |
| REDHILL MINE0404395 · Abandoned | Calaveras, CASurface · MSHA: Talc | — | — | 0 | 0 | — |
| RIDGEWAY MINE3800626 · Abandoned | Fairfield, SCSurface · MSHA: Gold Ore | — | — | 0 | 0 | — |
| Three Rivers Plant4102418 · Abandoned | Live Oak, TXSurface · MSHA: Construction Sand and Gravel | — | — | 0 | 0 | — |
| TOYON MILL0404490 · Abandoned | Calaveras, CAFacility · MSHA: Talc | — | — | 0 | 0 | — |
| Utah Concentrator North4200717 · Abandoned | Salt Lake, UTFacility · MSHA: Copper Ore NEC | — | — | 0 | 0 | — |
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
8 of 22 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Bingham Canyon Mine40.56056, -112.09111Open map ↗
- Boron Operations35.02222, -117.70333Open map ↗
- Copperton Concentrator40.55028, -112.15583Open map ↗
- Kennecott Keystone Underground40.56472, -112.10028Open map ↗
- Owens Lake Mine36.61056, -118.06556Open map ↗
- Humboldt Mill46.46811, -87.73489Open map ↗
- Kennecott Barneys Canyon Mining40.49917, -112.08639Open map ↗
- Utah Concentrator North40.70297, -112.09670Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. All 22 mines listed under this controller were checked; 5 have reports in the available quarters. Totals use current ownership.
Hours worked
6,770,030reported 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 | 1,267,115 | 0.00 | 2,349 | 5/5 mines reporting |
| 2025 Q2 | 0 | 1,030,261 | 0.00 | 2,097 | 5/5 mines reporting |
| 2025 Q3 | 0 | 1,085,434 | 0.00 | 2,083 | 5/5 mines reporting |
| 2025 Q4 | 0 | 1,093,133 | 0.00 | 2,053 | 5/5 mines reporting |
| 2026 Q1 | 0 | 1,146,397 | 0.00 | 2,185 | 5/5 mines reporting |
| 2026 Q2 | 0 | 1,147,690 | 0.00 | 2,198 | 5/5 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
705111 significant & substantial (S&S)
Accident records
751 records classified as fatality
Proposed penalties · USD
806,088.00665 of 705 violations with amounts
On-site inspection hours
2,986.2586 inspections · 86 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 | 97 | 12 | 105,309.00 | 13 | 0 | 11 | 594.8 |
| 2025-Q2 | 78 | 13 | 69,361.00 | 9 | 0 | 13 | 315.3 |
| 2025-Q3 | 118 | 27 | 224,568.00 | 21 | 0 | 17 | 463.3 |
| 2025-Q4 | 194 | 26 | 178,676.00 | 13 | 0 | 10 | 523.5 |
| 2026-Q1 | 21 | 2 | 22,590.00 | 8 | 1 | 7 | 172.0 |
| 2026-Q2 | 127 | 13 | 181,674.00 | 3 | 0 | 11 | 552.5 |
| 2026-Q3 | 45 | 13 | 23,910.00 | 8 | 0 | 13 | 274.5 |
| 2026-Q4 * | 25 | 5 | — | 0 | 0 | 4 | 90.5 |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- Bingham Canyon Mine · 4200149
Verbal Hazard Complaint Inspections · 1.0 on-site hours
- Kennecott Keystone Underground · 4201392
Verbal Hazard Complaint Inspections · 1.0 on-site hours
- Kennecott Keystone Underground · 4201392
57.14100(b) · $288.00 proposed
- 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.
- 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.
- 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
- 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.
- 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.
- 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.
- Copperton Concentrator · 4201996
Impoundment Spot Inspection · 10.5 on-site hours
- Copperton Concentrator · 4201996
Compliance Follow-up Inspection · 0.0 on-site hours
- Copperton Concentrator · 4201996
56.12028
- 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.
- 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.
- 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.
- Bingham Canyon Mine · 4200149
103 (g) Written Notification Hazard Complaint Inspectio · 2.3 on-site hours
- Copperton Concentrator · 4201996
41.12 · $151.00 proposed
- Kennecott Keystone Underground · 4201392
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
At the end of day shift, an Electrician was relocating equipment by manually carrying it from a parked scissor deck to a nearby light vehicle. As the Electrician was walking, they lost their footing and fell, contacting the bottom lip on the equipment being handled, causing a laceration.
- Copperton Concentrator · 4201996
56.12028 · $374.00 proposed
- Copperton Concentrator · 4201996
50.30(a) · $151.00 proposed
- Copperton Concentrator · 4201996
OTHER · INJURIES DUE TO NATURAL CAUSES
Accident narrative
The death was caused by a heart attack, as confirmed on the death certificate. This was a personal medical event unrelated to work. No workplace factors contributed, and no controls could have prevented a condition not linked to occupational exposure.
- Copperton Concentrator · 4201996
Non-Chargeable Accident Investigation · 0.0 on-site hours
- Copperton Concentrator · 4201996
56.14112(a)(1) · S&S · $504.00 proposed
- Copperton Concentrator · 4201996
56.14107(a) · $151.00 proposed
- Copperton Concentrator · 4201996
56.12023 · $336.00 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
11 linked operators.
Relationships reflect the selected mine status and current MSHA controller/operator fields.