Key Takeaway
Omya Arizona is a active surface mine producing Stone, located in Superior, Pinal County, AZ. It has 141 violations on record (23 S&S) and $65K in proposed penalties. Operated by Omya Inc.
Omya Arizona
Operator: Omya Inc
Controller: Omya Industries Inc
Location: Superior, Pinal County, AZ
Employees: 28
Recent Violations
View all 141 →| Date | Section | S&S | Negligence | Penalty |
|---|---|---|---|---|
| 02/12/2026 | 56.14132(a) | Non-S&S | ModNegligence | $0 |
| 02/12/2026 | 56.4201(a)(2) | Non-S&S | ModNegligence | $0 |
| 02/12/2026 | 56.12028 | Non-S&S | ModNegligence | $0 |
| 07/31/2025 | 56.14112(b) | S&S | ModNegligence | $504 |
| 07/31/2025 | 56.12004 | Non-S&S | ModNegligence | $151 |
| 07/31/2025 | 56.14205 | S&S | ModNegligence | $504 |
| 07/08/2025 | 56.14100(c) | Non-S&S | ModNegligence | $151 |
| 08/07/2024 | 56.20003(a) | Non-S&S | ModNegligence | $147 |
| 10/25/2023 | 50.30(a) | Non-S&S | ModNegligence | $143 |
| 10/25/2023 | 50.30(a) | Non-S&S | ModNegligence | $143 |
| 10/25/2023 | 50.30(a) | Non-S&S | ModNegligence | $143 |
| 10/25/2023 | 56.20003(a) | Non-S&S | ModNegligence | $143 |
| 10/25/2023 | 56.14112(a) | Non-S&S | ModNegligence | $143 |
| 10/25/2023 | 56.14103(a) | Non-S&S | ModNegligence | $143 |
| 06/26/2023 | 56.11012 | Non-S&S | ModNegligence | $155 |
| 06/26/2023 | 56.14132 | Non-S&S | ModNegligence | $143 |
| 06/08/2022 | 56.14213(a) | Non-S&S | ModNegligence | $133 |
| 03/22/2022 | 47.41(a) | Non-S&S | LowNegligence | $133 |
| 09/02/2021 | 56.14101(a)(3) | Non-S&S | ModNegligence | $125 |
| 12/01/2020 | 56.14130(h) | Non-S&S | ModNegligence | $125 |
Accidents & Injuries
View all 28 →| Date | Classification | Injury | Days Lost |
|---|---|---|---|
| 01/28/2026 | SLIP OR FALL OF PERSON | DAYS RESTRICTED ACTIVITY ONLY | 3d restricted |
| 10/06/2023 | ELECTRICAL | DAYS RESTRICTED ACTIVITY ONLY | 7d restricted |
| 06/04/2021 | SLIP OR FALL OF PERSON | DAYS RESTRICTED ACTIVITY ONLY | 4d restricted |
| 07/01/2019 | DISORDERS (PHYSICAL AGENTS) | OCCUPATNAL ILLNESS NOT DEG 1-6 | None |
| 06/18/2019 | OTHER | DAYS AWAY FROM WORK ONLY | 3d lost |
| 09/14/2016 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 7d restricted |
| 06/09/2014 | HANDLING OF MATERIALS | NO DYS AWY FRM WRK,NO RSTR ACT | None |
| 12/11/2012 | OTHER | DAYS RESTRICTED ACTIVITY ONLY | 9d restricted |
| 06/05/2007 | SLIP OR FALL OF PERSON | DAYS AWAY FROM WORK ONLY | 211d lost |
| 12/20/2006 | HANDLING OF MATERIALS | DAYS RESTRICTED ACTIVITY ONLY | 3d restricted |
Inspections
View all 75 →| Begin | End | Hours | Inspectors |
|---|---|---|---|
| 02/20/2026 | 02/20/2026 | 4.00 | 1 |
| 02/11/2026 | 02/13/2026 | 11.25 | 1 |
| 07/31/2025 | 08/05/2025 | 14.00 | 1 |
| 07/08/2025 | 07/10/2025 | 13.00 | 1 |
| 01/28/2025 | 01/29/2025 | 8.25 | 1 |
| 12/17/2024 | 12/18/2024 | 8.50 | 1 |
| 08/07/2024 | 08/12/2024 | 12.50 | 1 |
| 12/01/2023 | 12/01/2023 | 2.00 | 1 |
| 11/06/2023 | 11/06/2023 | 2.75 | 1 |
| 10/25/2023 | 10/26/2023 | 18.25 | 1 |
Mine Details
Related Mines
Frequently Asked Questions
How many MSHA violations does Omya Arizona have?
Omya Arizona has 141 MSHA violations on record, of which 23 are classified as Significant & Substantial (S&S). Total proposed penalties amount to $65K.
What type of mine is Omya Arizona?
Omya Arizona is a Surface mine producing Stone, located in Superior, Pinal County, AZ. It currently has 28 employees.
Has anyone been injured or killed at Omya Arizona?
According to MSHA records, Omya Arizona has 28 reported accident/injury records and 0 fatalities on file.
Who operates Omya Arizona?
Omya Arizona is operated by Omya Inc and controlled by Omya Industries Inc. MSHA Mine ID: 0202614.