Coal production
0reported short tons
ACTIVE / CONTROLLER PORTFOLIO
Portola Minerals Company
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA CONTROLLER IDM10356
MINE PORTFOLIO
2 of 2 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 |
|---|---|---|---|---|---|---|
| BLUE MOUNTAIN MINERALS0404716 · Active6/8 quarters reported | Tuolumne, CASurface · MSHA: Crushed, Broken Limestone NEC | 0 | 213,785 | 79 | 5 | 130.0 |
| Blue Mountain Minerals PR LLC0400099 · Active6/8 quarters reported | San Luis Obispo, CASurface · MSHA: Crushed, Broken Limestone NEC | 0 | 42,846 | 5 | 1 | 35.5 |
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
2 of 2 mines with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- BLUE MOUNTAIN MINERALS38.06944, -120.42306Open map ↗
- Blue Mountain Minerals PR LLC35.66944, -120.99194Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-18. All 2 mines listed under this controller were checked; 2 have reports in the available quarters. Totals use current ownership.
Hours worked
256,631reported 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 | 43,519 | 0.00 | 85 | 2/2 mines reporting |
| 2025 Q2 | 0 | 44,826 | 0.00 | 87 | 2/2 mines reporting |
| 2025 Q3 | 0 | 44,233 | 0.00 | 86 | 2/2 mines reporting |
| 2025 Q4 | 0 | 42,152 | 0.00 | 83 | 2/2 mines reporting |
| 2026 Q1 | 0 | 41,924 | 0.00 | 81 | 2/2 mines reporting |
| 2026 Q2 | 0 | 39,977 | 0.00 | 81 | 2/2 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-18
Violations
8411 significant & substantial (S&S)
Accident records
60 records classified as fatality
Proposed penalties · USD
81,990.0084 of 84 violations with amounts
On-site inspection hours
165.5011 inspections · 11 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 | 22 | 2 | 3,646.00 | 0 | 0 | 2 | 25.0 |
| 2025-Q2 | 42 | 6 | 67,669.00 | 2 | 0 | 2 | 47.5 |
| 2025-Q3 | 1 | 0 | 151.00 | 0 | 0 | 1 | 17.3 |
| 2025-Q4 | 1 | 0 | 151.00 | 0 | 0 | 1 | 5.0 |
| 2026-Q1 | 12 | 2 | 7,859.00 | 3 | 0 | 3 | 39.5 |
| 2026-Q2 | 3 | 1 | 467.00 | 1 | 0 | 1 | 8.0 |
| 2026-Q3 | 3 | 0 | 2,047.00 | 0 | 0 | 1 | 23.3 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- BLUE MOUNTAIN MINERALS · 0404716
MACHINERY · DAYS AWAY FROM WORK ONLY
Accident narrative
Miner was welding the inside of a metal chute through a standing access point to the chute. There were bright reflections of light off the metal. Injury happened despite proper welding helmet/visor being worn.
- BLUE MOUNTAIN MINERALS · 0404716
DISORDERS (REPEATED TRAUMA) · OCCUPATNAL ILLNESS NOT DEG 1-6
Accident narrative
Annual Audiometric Test Hearing Standard Threshold Shift 4th quarter 7000.2 reported 01/12/2026 Due to this on audiometric test dated 12/08/2025 the retest was not confirmed until the next available appointment 01/06/2026. This will not be on 1st qt reporting 7000.2 for 2026. Employee works at multiple mine and construction sites.
- BLUE MOUNTAIN MINERALS · 0404716
56.14100(b) · $151.00 proposed
- BLUE MOUNTAIN MINERALS · 0404716
103 (g) Written Notification Hazard Complaint Inspectio · 5.0 on-site hours
- Blue Mountain Minerals PR LLC · 0400099
50.30(a) · $151.00 proposed
- Blue Mountain Minerals PR LLC · 0400099
Regular Safety and Health Inspection · 17.3 on-site hours
- BLUE MOUNTAIN MINERALS · 0404716
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Performing Conveyor Maintenance led to dust of work falling into the face of the miner. Some got behind the eye protection and was unfortunately rubbed in, causing imbedding of foreign material in the left eye.
- BLUE MOUNTAIN MINERALS · 0404716
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Replacing a return roller. Return roller, with a hole full of material was pulled from a sitting position by the miner. Twisting hard to move heavy object caused persistent soreness in lower left side/back. Miner did not report condition and medical visits until next scheduled shift after receiving a restricted work status 6/21/2025.
- BLUE MOUNTAIN MINERALS · 0404716
Compliance Follow-up Inspection · 1.8 on-site hours
- BLUE MOUNTAIN MINERALS · 0404716
56.11001 · $151.00 proposed
- BLUE MOUNTAIN MINERALS · 0404716
56.3200 · $366.00 proposed
- BLUE MOUNTAIN MINERALS · 0404716
56.20003(a) · $151.00 proposed
- BLUE MOUNTAIN MINERALS · 0404716
56.20003(a) · $151.00 proposed
- BLUE MOUNTAIN MINERALS · 0404716
56.4402 · $151.00 proposed
- BLUE MOUNTAIN MINERALS · 0404716
56.14110 · $151.00 proposed
- BLUE MOUNTAIN MINERALS · 0404716
56.11017 · $226.00 proposed
- BLUE MOUNTAIN MINERALS · 0404716
56.16001 · S&S · $336.00 proposed
- BLUE MOUNTAIN MINERALS · 0404716
56.14112(a)(1) · $226.00 proposed
- BLUE MOUNTAIN MINERALS · 0404716
56.11002 · $151.00 proposed
- BLUE MOUNTAIN MINERALS · 0404716
56.14107(a) · $1,037.00 proposed
- BLUE MOUNTAIN MINERALS · 0404716
56.11027 · $465.00 proposed
- BLUE MOUNTAIN MINERALS · 0404716
56.20003(a) · $151.00 proposed
- BLUE MOUNTAIN MINERALS · 0404716
56.20003(a) · $151.00 proposed
- BLUE MOUNTAIN MINERALS · 0404716
56.11027 · $465.00 proposed
- BLUE MOUNTAIN MINERALS · 0404716
56.20003(a) · $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
2 linked operators.
Relationships reflect the selected mine status and current MSHA controller/operator fields.