Coal production
0reported short tons
ACTIVE / OPERATOR PORTFOLIO
MP Mine Operations, LLC.
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA OPERATOR ID0154633
MINE PORTFOLIO
1 of 1 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 |
|---|---|---|---|---|---|---|
| Mt Pass Mine & Mill0402542 · Active6/8 quarters reported | San Bernardino, CASurface · MSHA: Rare Earths Ore | 0 | 2,427,742 | 122 | 35 | 349.0 |
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
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Mt Pass Mine & Mill35.47194, -115.57444Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. All 1 mines listed under this operator were checked; 1 have reports in the available quarters. Totals use current ownership.
Hours worked
2,427,742reported 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 | 568,060 | 0.00 | 1,260 | 1/1 mines reporting |
| 2025 Q2 | 0 | 352,638 | 0.00 | 648 | 1/1 mines reporting |
| 2025 Q3 | 0 | 332,875 | 0.00 | 659 | 1/1 mines reporting |
| 2025 Q4 | 0 | 438,735 | 0.00 | 718 | 1/1 mines reporting |
| 2026 Q1 | 0 | 326,099 | 0.00 | 727 | 1/1 mines reporting |
| 2026 Q2 | 0 | 409,335 | 0.00 | 737 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
12222 significant & substantial (S&S)
Accident records
350 records classified as fatality
Proposed penalties · USD
136,685.00121 of 122 violations with amounts
On-site inspection hours
349.0020 inspections · 20 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 | 20 | 3 | 12,304.00 | 5 | 0 | 1 | 64.8 |
| 2025-Q2 | 14 | 3 | 13,764.00 | 2 | 0 | 4 | 85.8 |
| 2025-Q3 | 15 | 3 | 18,217.00 | 2 | 0 | 3 | 6.8 |
| 2025-Q4 | 0 | 0 | — | 6 | 0 | 1 | 4.0 |
| 2026-Q1 | 31 | 6 | 59,229.00 | 8 | 0 | 2 | 75.0 |
| 2026-Q2 | 5 | 0 | 2,586.00 | 8 | 0 | 3 | 14.5 |
| 2026-Q3 | 37 | 7 | 30,585.00 | 4 | 0 | 6 | 98.3 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- Mt Pass Mine & Mill · 0402542
56.14207 · $151.00 proposed
- Mt Pass Mine & Mill · 0402542
56.4402 · $151.00 proposed
- Mt Pass Mine & Mill · 0402542
56.4502(c) · $549.00 proposed
- Mt Pass Mine & Mill · 0402542
HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY
Accident narrative
Working foreman moving an agitator fell backwards after stepping onto a pallet and struck their neck on a metal I beam
- Mt Pass Mine & Mill · 0402542
HANDTOOLS (NONPOWERED) · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
wrench slipped, left hand suffered laceration on thumb.
- Mt Pass Mine & Mill · 0402542
HANDTOOLS (NONPOWERED) · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
ratchet slip while tightening hand railing on haul truck. 3 stitches to left thumb.
- Mt Pass Mine & Mill · 0402542
SLIP OR FALL OF PERSON · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
WSP employee entered a porta-potty supplied by the Mine site that was not secured or staked. After entering the porta-potty it tipped over causing the employee to be trapped and sprain ankle.
- Mt Pass Mine & Mill · 0402542
MACHINERY · PERM TOT OR PERM PRTL DISABLTY
Accident narrative
Docking lift gate level pulled in right index finger of EE into roller. Amputation of right index finger at 2nd knuckle.
- Mt Pass Mine & Mill · 0402542
103 (g) Written Notification Hazard Complaint Inspectio · 4.0 on-site hours
- Mt Pass Mine & Mill · 0402542
SLIP OR FALL OF PERSON · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Employee was walking in 6-8" of mud on a slope; EE slipped in the mud and EE's knee hit some concrete.
- Mt Pass Mine & Mill · 0402542
SLIP OR FALL OF PERSON · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Broken rib resulting from slip and fall onto horizontal scaffolding bar. Thought it was just back pain and reported late.
- Mt Pass Mine & Mill · 0402542
Compliance Follow-up Inspection · 2.8 on-site hours
- Mt Pass Mine & Mill · 0402542
DISORDERS (REPEATED TRAUMA) · OCCUPATNAL ILLNESS NOT DEG 1-6
Accident narrative
Hearing shift. EE has loud hobbies and prior hearing problems but audiologist did not confirm not work related. EE works in various areas of the plant.
- Mt Pass Mine & Mill · 0402542
103 (g) Written Notification Hazard Complaint Inspectio · 1.5 on-site hours
- Mt Pass Mine & Mill · 0402542
Compliance Follow-up Inspection · 2.5 on-site hours
- Mt Pass Mine & Mill · 0402542
HANDLING OF MATERIALS · DYS AWY FRM WRK & RESTRCTD ACT
Accident narrative
Sprain on right shoulder occurred when pulling on a strap to a sling bag and strap broke.
- Mt Pass Mine & Mill · 0402542
56.12032 · S&S · $959.00 proposed
- Mt Pass Mine & Mill · 0402542
56.12028 · $642.00 proposed
- Mt Pass Mine & Mill · 0402542
56.14100(c) · S&S · $12,403.00 proposed
- Mt Pass Mine & Mill · 0402542
56.12008 · $755.00 proposed
- Mt Pass Mine & Mill · 0402542
46.7(a) · $374.00 proposed
- Mt Pass Mine & Mill · 0402542
56.14112(b) · $226.00 proposed
- Mt Pass Mine & Mill · 0402542
47.41(a) · $226.00 proposed
- Mt Pass Mine & Mill · 0402542
48.29(a) · $151.00 proposed
- Mt Pass Mine & Mill · 0402542
56.12002 · $226.00 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.