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 – 2026-10-13. 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 – 2026-10-13Applies 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. accident220262740004
    Omya California · 0400167

    HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY

    Accident narrative

    During removal of the turbocharger assembly, the technician's right hand contacted a sharp surface on the exhaust manifold inlet, resulting in a laceration. Work stopped and the technician received prompt evaluation and then was taken to see Medical staff.

  2. inspectionF04B5C4
    Omya Arizona · 0202614

    Spot Inspection · 1.5 on-site hours

  3. inspectionF014D7A
    Omya Arizona · 0202614

    Regular Safety and Health Inspection · 4.0 on-site hours

  4. inspectionF041089
    Omya Alabama Plant · 0102985

    Regular Safety and Health Inspection · 27.0 on-site hours

  5. accident220261770023
    Omya Alabama Plant · 0102985

    HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT

    Accident narrative

    Employee was removing a hatch door on machinery when it came loose and dropped and pinched left pinky finger between the hatch and a beam below it.

  6. inspectionF0370E9
    Omya Arizona · 0202614

    103 (g) Written Notification Hazard Complaint Inspectio · 1.8 on-site hours

  7. violation5166912
    Omya California · 0400167

    56.20003(a) · S&S · $398.00 proposed

  8. violation5166911
    Omya California · 0400167

    56.16001 · $151.00 proposed

  9. accident220261460020
    Omya Arizona · 0202614

    SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Employee was on a safe rack when the flooring gave way. Employee did not fall all the way through and fall protection was in use. During the process of catching self the employee bruised the left arm and left leg.

  10. violation5166910
    Omya California · 0400167

    56.14207 · $245.00 proposed

  11. violation5166909
    Omya California · 0400167

    56.14107(a) · $151.00 proposed

  12. violation5166908
    Omya California · 0400167

    56.12004 · $151.00 proposed

  13. violation5166907
    Omya California · 0400167

    56.12008 · S&S · $504.00 proposed

  14. inspectionF01316C
    Omya California · 0400167

    Regular Safety and Health Inspection · 28.0 on-site hours

  15. accident220261100013
    Omya California · 0400167

    OTHER · DAYS AWAY FROM WORK ONLY

    Accident narrative

    Loader operator was dismounting. placed right leg on the ground and went to turn to the right. Right foot did not move resulting in the force going to the right knee. Doctors initial ruling is a sprain

  16. accident220261100011
    Omya California · 0400167

    HANDLING OF MATERIALS · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    operator was working on the journal in the Rm when EE's hand became pinched causing a small Skin Avulsion

  17. inspectionF00480D
    Omya Arizona · 0202614

    Verbal Hazard Complaint Inspections · 1.8 on-site hours

  18. inspection6858854
    Omya Arizona · 0202614

    Compliance Follow-up Inspection · 0.5 on-site hours

  19. violation5059571
    Omya Arizona · 0202614

    56.12028 · $151.00 proposed

  20. violation5059570
    Omya Arizona · 0202614

    56.4201(a)(2) · $151.00 proposed

  21. violation5059569
    Omya Arizona · 0202614

    56.14132(a) · $151.00 proposed

  22. inspection6858853
    Omya Arizona · 0202614

    Regular Safety and Health Inspection · 6.3 on-site hours

  23. accident220260300005
    Omya Arizona · 0202614

    SLIP OR FALL OF PERSON · DAYS RESTRICTED ACTIVITY ONLY

    Accident narrative

    Employee fell from a chair roughly 56" inches from the ground. On impact, majority of body wait landed on the the left elbow causing a sprain.

  24. violation5165116
    Omya California · 0400167

    56.20003(a) · S&S · $398.00 proposed

  25. violation5165115
    Omya California · 0400167

    50.30(a) · $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.