ACTIVE / OPERATOR PORTFOLIO

Iron Mountain Quarry LLC

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

MSHA OPERATOR IDL12791

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
Iron Mountain Quarry4503175 · Active6/8 quarters reportedSnohomish, WASurface · MSHA: Crushed, Broken Traprock079,48925175.8

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

25

3 significant & substantial (S&S)

  1. 2025 Q13
  2. 2025 Q23
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q14
  6. 2026 Q20
  7. 2026 Q315
  8. 2026 Q4 *0

Accident records

1

0 records classified as fatality

  1. 2025 Q11
  2. 2025 Q20
  3. 2025 Q30
  4. 2025 Q40
  5. 2026 Q10
  6. 2026 Q20
  7. 2026 Q30
  8. 2026 Q4 *0

Proposed penalties · USD

4,994.00

19 of 25 violations with amounts

  1. 2025 Q1453
  2. 2025 Q2453
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q1702
  6. 2026 Q2—
  7. 2026 Q33,386
  8. 2026 Q4 *—

On-site inspection hours

75.75

5 inspections · 5 with hours

  1. 2025 Q115.25
  2. 2025 Q211.00
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q116.50
  6. 2026 Q2—
  7. 2026 Q333.00
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q130453.0010115.3
2025-Q230453.0000111.0
2025-Q300—000—
2025-Q400—000—
2026-Q140702.0000216.5
2026-Q200—000—
2026-Q31533,386.0000133.0
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5107834
    Iron Mountain Quarry · 4503175

    56.20003(a) · $209.00 proposed

  2. violation5107833
    Iron Mountain Quarry · 4503175

    56.14100(b) · $177.00 proposed

  3. violation5107832
    Iron Mountain Quarry · 4503175

    56.14101(a)(2) · $151.00 proposed

  4. inspectionF04985B
    Iron Mountain Quarry · 4503175

    Regular Safety and Health Inspection · 33.0 on-site hours

  5. violation5107831
    Iron Mountain Quarry · 4503175

    56.14132(a) · $398.00 proposed

  6. violation5107830
    Iron Mountain Quarry · 4503175

    56.12004 · $151.00 proposed

  7. violation5107829
    Iron Mountain Quarry · 4503175

    56.11001 · S&S

  8. violation5107828
    Iron Mountain Quarry · 4503175

    56.20003(a) · $267.00 proposed

  9. violation5107827
    Iron Mountain Quarry · 4503175

    56.12028

  10. violation5107826
    Iron Mountain Quarry · 4503175

    56.20003(a)

  11. violation5107825
    Iron Mountain Quarry · 4503175

    56.14110 · S&S

  12. violation5107672
    Iron Mountain Quarry · 4503175

    56.14103(b)

  13. violation5107671
    Iron Mountain Quarry · 4503175

    56.14101(a)(3) · $883.00 proposed

  14. violation5107670
    Iron Mountain Quarry · 4503175

    56.14100(b)

  15. violation5107669
    Iron Mountain Quarry · 4503175

    56.4603(b) · $267.00 proposed

  16. violation5107668
    Iron Mountain Quarry · 4503175

    56.14112(a)(1) · S&S · $883.00 proposed

  17. inspectionF03D369
    Iron Mountain Quarry · 4503175

    Compliance Follow-up Inspection · 1.0 on-site hours

  18. violation5107320
    Iron Mountain Quarry · 4503175

    56.14132(a) · $193.00 proposed

  19. violation5107319
    Iron Mountain Quarry · 4503175

    56.14132(a) · $193.00 proposed

  20. inspectionF03D364
    Iron Mountain Quarry · 4503175

    Regular Safety and Health Inspection · 15.5 on-site hours

  21. violation5107318
    Iron Mountain Quarry · 4503175

    56.4402 · $151.00 proposed

  22. violation5107317
    Iron Mountain Quarry · 4503175

    56.20003(a) · $165.00 proposed

  23. violation9990687
    Iron Mountain Quarry · 4503175

    56.12008 · $151.00 proposed

  24. violation9990686
    Iron Mountain Quarry · 4503175

    56.14100(b) · $151.00 proposed

  25. violation9990685
    Iron Mountain Quarry · 4503175

    56.14207 · $151.00 proposed

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.