ACTIVE / OPERATOR PORTFOLIO

Blue Mountain Minerals

Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.

MSHA OPERATOR IDL13595

MINE PORTFOLIO

1 of 1 mines and facilities

2025-01-01 – 2026-10-13. Active records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
BLUE MOUNTAIN MINERALS0404716 · Active6/8 quarters reportedTuolumne, CASurface · MSHA: Crushed, Broken Limestone NEC0213,785795130.0

LOCATION

Mine location

1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-13Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

79

9 significant & substantial (S&S)

  1. 2025 Q122
  2. 2025 Q242
  3. 2025 Q30
  4. 2025 Q41
  5. 2026 Q111
  6. 2026 Q20
  7. 2026 Q33
  8. 2026 Q4 *0

Accident records

5

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q22
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q12
  6. 2026 Q21
  7. 2026 Q30
  8. 2026 Q4 *0

Proposed penalties · USD

81,127.00

79 of 79 violations with amounts

  1. 2025 Q13,646
  2. 2025 Q267,669
  3. 2025 Q3—
  4. 2025 Q4151
  5. 2026 Q17,614
  6. 2026 Q2—
  7. 2026 Q32,047
  8. 2026 Q4 *—

On-site inspection hours

130.00

8 inspections · 8 with hours

  1. 2025 Q125.00
  2. 2025 Q247.50
  3. 2025 Q3—
  4. 2025 Q45.00
  5. 2026 Q129.25
  6. 2026 Q2—
  7. 2026 Q323.25
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q12223,646.0000225.0
2025-Q242667,669.0020247.5
2025-Q300—000—
2025-Q410151.000015.0
2026-Q11117,614.0020229.3
2026-Q200—100—
2026-Q3302,047.0000123.3
2026-Q4 *00—000—

Most cited CFR sections

All violations issued in the selected period. Counts combine subsections.

Safety activity

  1. violation5106669
    BLUE MOUNTAIN MINERALS · 0404716

    56.20003(a) · $1,431.00 proposed

  2. violation5106667
    BLUE MOUNTAIN MINERALS · 0404716

    56.14132(a) · $151.00 proposed

  3. violation5106666
    BLUE MOUNTAIN MINERALS · 0404716

    56.4101 · $465.00 proposed

  4. inspectionF03EAE3
    BLUE MOUNTAIN MINERALS · 0404716

    Regular Safety and Health Inspection · 23.3 on-site hours

  5. accident220261110039
    BLUE MOUNTAIN MINERALS · 0404716

    STEPPING OR KNEELING ON OBJECT · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    A Mine Engineer was walking on a road in the pit and stepped on a loose rock that moved under foot causing a strain making it uncomfortable to walk.

  6. inspection6966909
    BLUE MOUNTAIN MINERALS · 0404716

    Compliance Follow-up Inspection · 1.3 on-site hours

  7. violation9890793
    BLUE MOUNTAIN MINERALS · 0404716

    56.17001 · $465.00 proposed

  8. violation9890792
    BLUE MOUNTAIN MINERALS · 0404716

    48.27(a) · $1,153.00 proposed

  9. violation9890791
    BLUE MOUNTAIN MINERALS · 0404716

    56.20003(b) · $313.00 proposed

  10. violation9890789
    BLUE MOUNTAIN MINERALS · 0404716

    56.14100(b) · $313.00 proposed

  11. violation9890788
    BLUE MOUNTAIN MINERALS · 0404716

    56.14207 · $313.00 proposed

  12. violation9890787
    BLUE MOUNTAIN MINERALS · 0404716

    56.14132(a) · $465.00 proposed

  13. violation9890786
    BLUE MOUNTAIN MINERALS · 0404716

    56.14132(b)(1)(i) · $465.00 proposed

  14. violation9890785
    BLUE MOUNTAIN MINERALS · 0404716

    56.14207 · $313.00 proposed

  15. violation9890784
    BLUE MOUNTAIN MINERALS · 0404716

    56.14101(a)(2) · $465.00 proposed

  16. violation9890783
    BLUE MOUNTAIN MINERALS · 0404716

    56.14101(a)(2) · S&S · $2,312.00 proposed

  17. violation9890782
    BLUE MOUNTAIN MINERALS · 0404716

    56.9300(a) · $1,037.00 proposed

  18. inspectionF037D73
    BLUE MOUNTAIN MINERALS · 0404716

    Regular Safety and Health Inspection · 28.0 on-site hours

  19. accident220260160004
    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.

  20. accident220260130025
    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.

  21. violation9680852
    BLUE MOUNTAIN MINERALS · 0404716

    56.14100(b) · $151.00 proposed

  22. inspectionF029BA3
    BLUE MOUNTAIN MINERALS · 0404716

    103 (g) Written Notification Hazard Complaint Inspectio · 5.0 on-site hours

  23. accident220251770004
    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.

  24. accident220251770030
    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.

  25. inspectionF011135
    BLUE MOUNTAIN MINERALS · 0404716

    Compliance Follow-up Inspection · 1.8 on-site hours

Safety sources and definitions

MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-13.

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.