ACTIVE / OPERATOR PORTFOLIO

OMA Construction Inc dba Mountain Loop Mine

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

MSHA OPERATOR ID0182833

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
Mountain Loop Mine4503484 · Active6/8 quarters reportedSnohomish, WASurface · MSHA: Construction Sand and Gravel017,34731056.5

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

31

6 significant & substantial (S&S)

  1. 2025 Q15
  2. 2025 Q20
  3. 2025 Q32
  4. 2025 Q40
  5. 2026 Q114
  6. 2026 Q20
  7. 2026 Q310
  8. 2026 Q4 *0

Accident records

0

0 records classified as fatality

  1. 2025 Q10
  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

8,347.00

31 of 31 violations with amounts

  1. 2025 Q11,036
  2. 2025 Q2—
  3. 2025 Q3302
  4. 2025 Q4—
  5. 2026 Q12,131
  6. 2026 Q2—
  7. 2026 Q34,878
  8. 2026 Q4 *—

On-site inspection hours

56.50

7 inspections · 7 with hours

  1. 2025 Q19.00
  2. 2025 Q213.00
  3. 2025 Q3—
  4. 2025 Q4—
  5. 2026 Q117.50
  6. 2026 Q2—
  7. 2026 Q317.00
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q1511,036.000029.0
2025-Q200—00113.0
2025-Q320302.00000—
2025-Q400—000—
2026-Q11432,131.0000217.5
2026-Q200—000—
2026-Q31024,878.0000217.0
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. inspectionF049856
    Mountain Loop Mine · 4503484

    Compliance Follow-up Inspection · 0.5 on-site hours

  2. violation5107821
    Mountain Loop Mine · 4503484

    62.120 · $267.00 proposed

  3. violation5107820
    Mountain Loop Mine · 4503484

    56.14132(a) · S&S · $2,936.00 proposed

  4. violation5107819
    Mountain Loop Mine · 4503484

    56.12030 · S&S · $398.00 proposed

  5. violation5107818
    Mountain Loop Mine · 4503484

    56.14100(b) · $177.00 proposed

  6. violation5107817
    Mountain Loop Mine · 4503484

    56.14100(b) · $151.00 proposed

  7. violation5107816
    Mountain Loop Mine · 4503484

    56.14100(b) · $177.00 proposed

  8. violation5107815
    Mountain Loop Mine · 4503484

    56.14100(b) · $177.00 proposed

  9. violation5107814
    Mountain Loop Mine · 4503484

    56.12004 · $151.00 proposed

  10. violation5107813
    Mountain Loop Mine · 4503484

    56.20003(a) · $177.00 proposed

  11. violation5107812
    Mountain Loop Mine · 4503484

    56.14107(a) · $267.00 proposed

  12. inspectionF03D390
    Mountain Loop Mine · 4503484

    Regular Safety and Health Inspection · 16.5 on-site hours

  13. inspectionF03D36D
    Mountain Loop Mine · 4503484

    Spot Inspection · 1.8 on-site hours

  14. violation5107315
    Mountain Loop Mine · 4503484

    47.51(b) · $151.00 proposed

  15. violation5107314
    Mountain Loop Mine · 4503484

    56.18002(a) · S&S · $151.00 proposed

  16. violation5107313
    Mountain Loop Mine · 4503484

    46.8(a)(2) · $168.00 proposed

  17. violation5107305
    Mountain Loop Mine · 4503484

    50.30(a) · $151.00 proposed

  18. inspectionF03D362
    Mountain Loop Mine · 4503484

    Regular Safety and Health Inspection · 15.8 on-site hours

  19. violation9505842
    Mountain Loop Mine · 4503484

    56.20003(a) · S&S · $151.00 proposed

  20. violation5107312
    Mountain Loop Mine · 4503484

    47.41(a) · $151.00 proposed

  21. violation5107311
    Mountain Loop Mine · 4503484

    56.14132(a) · $151.00 proposed

  22. violation5107310
    Mountain Loop Mine · 4503484

    56.14205 · $151.00 proposed

  23. violation5107309
    Mountain Loop Mine · 4503484

    56.12008 · $151.00 proposed

  24. violation5107308
    Mountain Loop Mine · 4503484

    56.14107(a) · $151.00 proposed

  25. violation5107307
    Mountain Loop Mine · 4503484

    56.11012 · $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.