Data / Mines / California / Blue Mountain Minerals
Blue Mountain Minerals: 103 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Blue Mountain Minerals is an active crushed, broken limestone surface mine in Tuolumne County, California, operated by Blue Mountain Minerals with 54 employees on MSHA's record (mine ID 0404716). Since January 1, 2022 MSHA inspectors issued 103 citations and orders there with $88,589 in proposed penalties, and 15 accident reports were filed there, with 15 injury or illness cases.
The request: Watch Blue Mountain Minerals (MSHA mine ID 0404716) in Tuolumne County, California: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 0404716
- Status
- Active since October 6, 1991
- Main commodity
- Crushed, broken limestone
- Mine type
- Surface
- County
- Tuolumne County, California
- Nearest town
- Columbia
- Operator
- Blue Mountain Minerals
- Parent company
- Portola Minerals Company
- Employees
- 54
- MSHA field office
- Vacaville CA Field Office
- Citations and orders since January 1, 2022
- 103
- Significant and substantial
- 10 (9.7%)
- Closure orders
- 1
- High negligence or reckless
- 2
- Proposed penalties
- $88,589
- Amount paid so far
- $60,810
- Inspections
- 15
- Inspector hours on site
- 202
- Citations per inspection
- 6.87 (all mines 2.30)
- Accident reports
- 15
- Injury and illness cases
- 15
- Fatalities
- 0
- Latest MSHA record
- July 20, 2026
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 | 14 | 0 | $4,606 | 4 |
| 2023 | 10 | 1 | $2,856 | 4 |
| 2024 | 0 | 0 | $0 | 2 |
| 2025 | 65 | 8 | $71,466 | 2 |
| 2026 | 14 | 1 | $9,661 | 3 |
Standards cited most at Blue Mountain Minerals
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 56.20003 | Surface metal and nonmetal mines | 25 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 15 |
| 30 CFR 56.14112 | Surface metal and nonmetal mines | 9 |
| 30 CFR 56.16001 | Surface metal and nonmetal mines | 6 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.14101 | Surface metal and nonmetal mines | 5 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.11002 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.11027 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.3131 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.4203 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Blue Mountain Minerals
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 9 |
| No lost time, or an occupational illness | 6 |
What the accident reports at Blue Mountain Minerals describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 4 |
| Handtools (nonpowered) | 3 |
| Disorders (repeated trauma) | 2 |
| Machinery | 2 |
| Disorders (physical agents) | 1 |
| Slip or fall of person | 1 |
| Striking or bumping | 1 |
| Stepping or kneeling on object | 1 |
Equipment named in accident reports at Blue Mountain Minerals
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 3 |
| Welding machine | 1 |
| Shovel | 1 |
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.