Data / Mines / California / Mt Pass Mine & Mill
Mt Pass Mine & Mill: 196 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Mt Pass Mine & Mill is an active rare earths ore surface mine in San Bernardino County, California, operated by MP Mine Operations, LLC. with 790 employees on MSHA's record (mine ID 0402542). Since January 1, 2022 MSHA inspectors issued 196 citations and orders there with $164,580 in proposed penalties, and 64 accident reports were filed there, with 64 injury or illness cases.
The request: Watch Mt Pass Mine & Mill (MSHA mine ID 0402542) in San Bernardino County, California: each new citation and each accident report. $10 of work on sign-up, no card.
SpecStream is the live web data engine for teams and agents. It reads the mine, citation, inspection and accident files that MSHA publishes, and this page is that reading. Ask for the mines of a commodity, state or operator with the operator's headquarters, website and size added from the web, and new mines, new citations and new accident reports arrive in your sheet, CRM, Slack or agent as MSHA posts them.
- MSHA mine ID
- 0402542
- Status
- Active since December 13, 2017
- Main commodity
- Rare earths ore
- Mine type
- Surface
- County
- San Bernardino County, California
- Nearest town
- Primm
- Operator
- MP Mine Operations, LLC.
- Parent company
- MP Materials Corporation
- Employees
- 790
- MSHA field office
- Henderson NV Field Office
- Citations and orders since January 1, 2022
- 196
- Significant and substantial
- 31 (15.8%)
- Closure orders
- 6
- High negligence or reckless
- 17
- Proposed penalties
- $164,580
- Amount paid so far
- $135,661
- Inspections
- 66
- Inspector hours on site
- 878
- Citations per inspection
- 2.97 (all mines 2.30)
- Accident reports
- 64
- Injury and illness cases
- 64
- Fatalities
- 0
- Latest MSHA record
- September 11, 2026
- Citations issued to contractors here
- 57 ($21,552 proposed)
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2022 | 12 | 1 | $2,167 | 3 |
| 2023 | 55 | 8 | $21,324 | 13 |
| 2024 | 27 | 1 | $7,899 | 13 |
| 2025 | 44 | 9 | $43,530 | 15 |
| 2026 | 58 | 12 | $89,660 | 20 |
Standards cited most at Mt Pass Mine & Mill
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 14 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 14 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 13 |
| 30 CFR 56.12002 | Surface metal and nonmetal mines | 11 |
| 30 CFR 56.4201 | Surface metal and nonmetal mines | 10 |
| 30 CFR 47.41 | Hazard communication | 9 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 7 |
| 30 CFR 56.12032 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.12068 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 4 |
Injury and illness cases at Mt Pass Mine & Mill
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Permanent disability | 1 |
| Days away from work or restricted activity | 47 |
| No lost time, or an occupational illness | 16 |
What the accident reports at Mt Pass Mine & Mill describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Slip or fall of person | 25 |
| Handling of materials | 16 |
| Machinery | 6 |
| Handtools (nonpowered) | 5 |
| Other | 5 |
| Powered haulage | 3 |
| All other occupational illnesses | 1 |
| Stepping or kneeling on object | 1 |
| Exploding vessels under pressure | 1 |
| Disorders (repeated trauma) | 1 |
Equipment named in accident reports at Mt Pass Mine & Mill
| Equipment | Reports |
|---|---|
| Hand tools (powered) | 5 |
| Hand tools (not powered) | 4 |
| Trucks | 2 |
| Milling machinery | 1 |
| Crane | 1 |
| Mancar | 1 |
| Hoist | 1 |
Other open mines in San Bernardino County, California
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Black Mountain Quarry | Cemex Construction Materials Pacific, LLC | San Bernardino County, CA | Cement | 133 | 244 |
| Cushenbury Plant | Mitsubishi Cement Corp | San Bernardino County, CA | Cement | 160 | 179 |
| Victorville Cement Plant | Cemex Construction Materials Pacific, LLC | San Bernardino County, CA | Cement | 126 | 148 |
| Oro Grande Quarry | CalPortland Company | San Bernardino County, CA | Cement | 137 | 146 |
| Lucerne Valley Plant and Quarry | Specialty Minerals Inc | San Bernardino County, CA | Crushed, broken limestone | 86 | 107 |
| Omya California | Omya Inc | San Bernardino County, CA | Crushed, broken limestone | 62 | 46 |
| Robert E Hove Pit | Hi-Grade Materials | San Bernardino County, CA | Construction sand and gravel | 10 | 41 |
| Upland Pit and Mill | Holliday Rock Company Inc | San Bernardino County, CA | Construction sand and gravel | 55 | 30 |
| Protech Minerals, LLC | Protech Minerals, LLC | San Bernardino County, CA | Clay, ceramic, refractory mnls. | 6 | 30 |
| Oro Grande Pit | Agcon Inc. | San Bernardino County, CA | Construction sand and gravel | 4 | 30 |
| Lynx Cat Quarry | Lynx Cat Mountain Quarry Operations, LLC | San Bernardino County, CA | Sand, industrial | 16 | 27 |
| Silver Lake Mine | James Gang Enterprises Inc. | San Bernardino County, CA | Iron ore | 6 | 23 |
| Lytle Creek Pit | Cemex Construction Materials Pacific, LLC | San Bernardino County, CA | Construction sand and gravel | 44 | 22 |
| Campus Plant | Holliday Rock Company Inc | San Bernardino County, CA | Construction sand and gravel | 15 | 22 |
| Valley Salt | West Coast Aggregate Supply | San Bernardino County, CA | Salt | 5 | 21 |
US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.