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 – 2026-10-18. 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 – 2026-10-18Applies 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. violation9990831
    BLUE MOUNTAIN MINERALS · 0404716

    56.14107(a) · S&S · $313.00 proposed

  2. violation9990830
    BLUE MOUNTAIN MINERALS · 0404716

    56.14112(a)(1) · $151.00 proposed

  3. violation9990829
    BLUE MOUNTAIN MINERALS · 0404716

    56.14107(a) · $151.00 proposed

  4. violation9990828
    BLUE MOUNTAIN MINERALS · 0404716

    56.4203 · $151.00 proposed

  5. violation9990827
    BLUE MOUNTAIN MINERALS · 0404716

    56.14101(a)(2) · $151.00 proposed

  6. violation9990826
    BLUE MOUNTAIN MINERALS · 0404716

    56.14107(a) · $151.00 proposed

  7. violation9990825
    BLUE MOUNTAIN MINERALS · 0404716

    56.14107(a) · $151.00 proposed

  8. violation9990824
    BLUE MOUNTAIN MINERALS · 0404716

    56.20003(a) · $151.00 proposed

  9. violation9990823
    BLUE MOUNTAIN MINERALS · 0404716

    56.14107(a) · S&S · $313.00 proposed

  10. violation9990822
    BLUE MOUNTAIN MINERALS · 0404716

    56.14107(a) · $151.00 proposed

  11. violation9990821
    BLUE MOUNTAIN MINERALS · 0404716

    56.20003(a) · $151.00 proposed

  12. violation9990820
    BLUE MOUNTAIN MINERALS · 0404716

    56.20003(a) · $151.00 proposed

  13. violation9990819
    BLUE MOUNTAIN MINERALS · 0404716

    56.14101(a)(2) · $151.00 proposed

  14. violation9990818
    BLUE MOUNTAIN MINERALS · 0404716

    56.14207 · $151.00 proposed

  15. violation9990817
    BLUE MOUNTAIN MINERALS · 0404716

    56.14207 · $151.00 proposed

  16. violation9990816
    BLUE MOUNTAIN MINERALS · 0404716

    56.14207 · $151.00 proposed

  17. inspection6963083
    BLUE MOUNTAIN MINERALS · 0404716

    Regular Safety and Health Inspection · 24.5 on-site hours

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.