ACTIVE / OPERATOR PORTFOLIO

Omya, Inc

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

MSHA OPERATOR ID0097485

MINE PORTFOLIO

3 of 3 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
Omya Alabama Plant0102985 · Active6/8 quarters reportedTalladega, ALFacility · MSHA: Crushed, Broken Marble0263,811172146.0
Omya Arizona0202614 · Active6/8 quarters reportedPinal, AZSurface · MSHA: Crushed, Broken Marble088,7447230.0
Omya California0400167 · Active6/8 quarters reportedSan Bernardino, CASurface · MSHA: Crushed, Broken Limestone NEC0175,371245127.8

LOCATION

Portfolio map

3 of 3 mines 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

48

8 significant & substantial (S&S)

  1. 2025 Q12
  2. 2025 Q25
  3. 2025 Q314
  4. 2025 Q418
  5. 2026 Q13
  6. 2026 Q26
  7. 2026 Q30
  8. 2026 Q4 *0

Accident records

9

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q20
  3. 2025 Q33
  4. 2025 Q40
  5. 2026 Q11
  6. 2026 Q24
  7. 2026 Q31
  8. 2026 Q4 *0

Proposed penalties · USD

14,218.00

48 of 48 violations with amounts

  1. 2025 Q1302
  2. 2025 Q21,153
  3. 2025 Q37,284
  4. 2025 Q43,426
  5. 2026 Q1453
  6. 2026 Q21,600
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

303.75

18 inspections · 18 with hours

  1. 2025 Q135.25
  2. 2025 Q236.00
  3. 2025 Q365.25
  4. 2025 Q496.50
  5. 2026 Q16.75
  6. 2026 Q231.50
  7. 2026 Q332.50
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q120302.0000235.3
2025-Q2511,153.0000136.0
2025-Q31437,284.0030565.3
2025-Q41823,426.0000296.5
2026-Q130453.001026.8
2026-Q2621,600.0040331.5
2026-Q300—10332.5
2026-Q4 *00—000—

Most cited CFR sections

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

Safety activity

  1. violation5063466
    Omya Alabama Plant · 0102985

    56.11002 · $151.00 proposed

  2. violation5063465
    Omya Alabama Plant · 0102985

    56.12004 · $151.00 proposed

  3. violation5063464
    Omya Alabama Plant · 0102985

    56.11003 · $151.00 proposed

  4. violation5063463
    Omya Alabama Plant · 0102985

    46.9(b)(2) · $151.00 proposed

  5. violation5063462
    Omya Alabama Plant · 0102985

    46.9(c)(1)(iii) · $151.00 proposed

  6. violation5063461
    Omya Alabama Plant · 0102985

    56.14100(c) · $4,383.00 proposed

  7. violation5063460
    Omya Alabama Plant · 0102985

    56.9104 · $267.00 proposed

  8. accident220252300014
    Omya California · 0400167

    STRIKING OR BUMPING · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    Third party temporary laborer hit their hard hat on the frame of a conveyor in the central crushing area. The impact resulted in a neck strain. this was not reported until the 12th, at which time the laborers company (ICR) sent them to their industrial clinic

  9. inspectionF00CC84
    Omya Arizona · 0202614

    103 (g) Written Notification Hazard Complaint Inspectio · 4.0 on-site hours

  10. violation5058497
    Omya Arizona · 0202614

    56.14205 · S&S · $504.00 proposed

  11. violation5058496
    Omya Arizona · 0202614

    56.12004 · $151.00 proposed

  12. violation5058495
    Omya Arizona · 0202614

    56.14112(b) · S&S · $504.00 proposed

  13. accident220251980010
    Omya California · 0400167

    HANDLING OF MATERIALS · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    Employee was removing a guard to begin maintenance on the ball mill when EE felt EE's knee pop. Atter evaluation initial diagnosis is a knee sprain

  14. inspectionF00CC80
    Omya Arizona · 0202614

    Regular Safety and Health Inspection · 8.0 on-site hours

  15. violation5050198
    Omya Arizona · 0202614

    56.14100(c) · $151.00 proposed

  16. violation9827782
    Omya Alabama Plant · 0102985

    56.9300(a) · S&S · $549.00 proposed

  17. violation9827781
    Omya Alabama Plant · 0102985

    56.14112(b) · $151.00 proposed

  18. violation9827780
    Omya Alabama Plant · 0102985

    56.4101 · $151.00 proposed

  19. inspectionF0190E0
    Omya Alabama Plant · 0102985

    Regular Safety and Health Inspection · 36.0 on-site hours

  20. violation9827779
    Omya Alabama Plant · 0102985

    56.20003(a) · $151.00 proposed

  21. violation9827778
    Omya Alabama Plant · 0102985

    56.14100(b) · $151.00 proposed

  22. violation9892152
    Omya California · 0400167

    56.12028 · $151.00 proposed

  23. violation9892890
    Omya California · 0400167

    56.20003(a) · $151.00 proposed

  24. inspectionF00881F
    Omya California · 0400167

    Regular Safety and Health Inspection · 33.0 on-site hours

  25. inspection6858836
    Omya Arizona · 0202614

    103 (g) Written Notification Hazard Complaint Inspectio · 2.3 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.