Mining Incidents

Omya ArizonaMetal/Nonmetal

Omya Inc · Surface
Controlled by Omya Industries Inc
Superior, Pinal County, AZ · Active
MSHA Mine ID: 0202614
Fatalities
0
Total incidents
28
Years on record
2000–2026
Latest incident
Jan 2026
No fatalities recorded at this mine.

Reportable incidents

28 on file

2026 · 1 incident

Fall to the walkway or working surface

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.

2023 · 1 incident

Contact with electrical current

Maintenance supervisor was disconnecting an electric forklift battery power connection. Employee came in contact with battery frame and received shock on the right wrist. Electric shock ran through their upper body to left hand. Employee was transported to the ER for evaluation and was released.

2021 · 1 incident

Fall onto or against objects

Miner stacked pallets 20 high for use in packaging supersacks. When they reached for the top one a foot got caught under the pallet stack and when they went to step back was unable to. They fell back on to the roller conveyor and sustained a back contusion and sprain of ligaments of thoracic spine.

2019 · 2 incidents

Contact with heat

Employee worked for about 30 mins packaging product in super sacks then started to clean for 60 minutes. EE felt light headed & went to get a drink of water. Went back to work. EE felt light headed still so EE stood in front of a fan. EE was then helped to the break room. EE felt overheated. The temperature outside was high of 100. EE had hiked the previous day. EE was dehydrated.

Bodily reaction, (Not Elsewhere Classified)

During a bulk truck loading and packaging Temporary worker was kneeling on the top of the truck closing the truck hatch after finishing bulk load out. When the employee stood up EE felt a sharp pain in the right knee. Kneeling to close hatches and add seals is a normal practice. The temp worker was driven to the hospital and it was determined that EE had a right knee strain.

2016 · 1 incident

Struck by falling object

Employee was lifting a pallet to place it under a loading spout when ee lost grip causing the pallet to fall onto the left foot above the steel protector resulting in a bruise.

2014 · 1 incident

Struck by... (Not Elsewhere Classified)

Employee was pulling a vacuum hose when it got stuck between crossbeams. He yanked the hose which ""slingshotted"" towards him striking and chipping his front tooth.

2012 · 1 incident

Bodily reaction, (Not Elsewhere Classified)

Employee was sweeping the packaging/warehouse floor when he bent down to pick up an empty bay he felt a sharp pain in his back.

2007 · 1 incident

Fall from machine

Employee was on top of a bulk truck trailer trying to align a loading spout with the trailer opening, when he tripped and fell through the space between the bottom rail of the gangway and the trailer, landing on the ground.

2006 · 3 incidents

Over-exertion in lifting objects

Employee was lifting slipsheets when he felt sharp pain in his lower back.

Struck against stationary object

Employee was removing 300.20.04 screw conveyor when he stepped on the edge of a section of floor grading that had been removed and placed on the floor.

Fall from machine

The employee was stepping down from the forklift, lost his footing, and injured his left hand and wrist falling to the ground. Employee is on restricted work duty.

2005 · 2 incidents

Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS STEPPING DOWN FROM THE DFA ROBOT PALLET DISCHARGE CONVEYOR AND TWISTED HIS LEFT ANKLE. THIS WAS AN UNAUTHORIZED WALKING ROUTE AND HE WILL BE RETRAINED. HE IS ON RESTRICTED WORK ACTIVITY

Absorption of radiations, caustics, toxic and noxious substances

EE WAS PERFORMING LAB TESTS. AFTER DIGESTION OF THE BONE MEAL SAMPLES, EE WAS RINSING THE LID OF THE VESSEL USING A 2:1 NITRIC ACID SOLUTION WITH A SQUIRT BOTTLE. THE BONE MEAL AND NITRIC ACID SPLASHED UP, CAUSING SEVERAL SMALL ACID BURN SPOTS ON HER FACE. THE BURNS WERE CLASSIFIED AS SECOND DEGREE BURNS.

2004 · 3 incidents

Struck against stationary object

Employee was attempting to lube throttle linkages with a can of WD40, when retracting his hand he came in contact with a fan blade. He cut his left palm area and the tip of his left thumb, requiring 17 stitches.

Struck by... (Not Elsewhere Classified)

EE WAS UNLOADING DRUMS FROM A PICKUP TO BE USED TO CATCH OIL BEING DRAINED FROM THE ROLLER MILL.AS HE SET THE DRUM DOWN, & TURNED IT, HE RECEIVED A 2CM LONG LACERATON TO HIS RIGHT THUMB

Over-exertion (Not Elsewhere Classified)

EE WAS SHOVELING CALCIUM CARBONATE INTO A HOPPER AND HE FELT A SHARP PAIN IN HIS LOWER BACK. EE WAS PLACED ON RESTRICTED WORK ACTIVITY.

2003 · 3 incidents

Over-exertion (Not Elsewhere Classified)

EE ALLEGES HE INJURED HIS BACK AT WORK WHILE WORKING ON A ROTARY ASSEMBLY. HE DID NOT REPORT THIS TO THE COMPANY UNTIL 12/16/03 AFTER HE WENT TO HIS OWN PHYSICIAN. CLAIM IS BEING QUESTIONED SINCE HE DID NOT REPORT UNTIL ONE WEEK LATER AND AFTER HE WENT HUNTING ON HIS OWN TIME. SEE ATTACHED NOTE. HE IS ON MODIFIED WORK.

Fall to the walkway or working surface

THE EE WAS USING CAUTION TAPE TO TAP OFF THE NORTH #1 BULK LOADOUT SCALE BECAUSE THE LOADOUT SPOUT WOULD NOT RETRACT. AS THE EE STEPPED OFF OF THE SCALE, HE STEPPED ON THE SCALE FOOTING CAUSIN G HIS FOOT TO ROLL SIDEWAYS AND HE FELL TO THE UGROUND. EE FRACTURED HIS FIBULA BUT BOTH THE INITIAL PHYSICIAN AND THE ORTHOPEDIC SPECALIST RETURNED HIM TO MODIFIED WORK. HE DID NOT LOSE ANY

Struck by... (Not Elsewhere Classified)

EMPLOYEE CLOCKED IN AND WAS CLEANING HIS POCKET KNIFE. HE ALLEGES HIS HAND SLIPPED AND HE LACERATED HIS RIGHT INDEX FINGER, WHICH REQUIRED 10 STITCHES. CLEANING HIS OWN PERSONAL POCKET KNIFE I S NOT ONE OF HIS ASSIGNED WORK DUTIES.

2002 · 3 incidents

Caught in, under or between (Not Elsewhere Classified)

EE WAS UNFOLDING A LADDER AND PINCHED HIS THUMB BETWEEN TOP STEP AND RAIL.

Struck by falling object

TWO EMPLOYEES WERE PLACING A WALK GRATE. ONE DROPPED HIS END SO THE OTHER EMPLOYEE'S END SLIPPED FROM HIS HAND AND ONTO HIS RIGHT INSTEP. INJURY WAS A CONTUSION.

Over-exertion (Not Elsewhere Classified)

EE WAS WALKING DOWN THE WEST STEPS TO THE BULK LOADOUT AREA AND TRIPPED. HE TWISTED HIS LEFT KNEE. EE WAS SEEN BY A PHYSICIAN AND PLACED ON MODIFIED WORK.

2001 · 4 incidents

Rubbed or abraded

EE'S LEFT KNEE BEGAN TO SWELL IN THE MIDDLE OF HIS SHIFT. HE ALLEGES IT WAS CAUSED BY KNEELING WHILE WORKING ON THE CRUSHER SYSTEM. IT IS QUESTIONABLE AS TO WHETHER OR NOT IT IS WORK RELATED B ECAUSE OF THE DIAGNOSIS.

Fall onto or against objects

THE EE WAS INSTALLING A MAGNET HOUSING. HE HAD THE MAGNET LAYING ON THE FLOOR WHERE HE WAS WORKING. HE STEPPED BACK ONTO THE MAGNET AND TWISTED HIS LEFT ANKLE.

Struck by falling object

EE WAS TAKING INFORMATION FROM A CLASSIFIER MOTOR TAG PLATE WHEN DUST PARTICLES FELL FROM ABOVE.SOME OF THIS MATERIAL GOT INTO HIS LEFT EYE. A SMALL PIECE OF METAL BECAME INBEDDED IN HIS EYE.

Struck by falling object

EE WAS WALKING INTO THE SPARE PART WAREHOUSE WHEN A METAL DOOR THAT WAS PROPPED UP FELL ON HER CAUSING HER TO FALL TO THE GROUND. EE WAS NOT SEEN BY A DOCTOR UNTIL 2 DAYS LATER.

2000 · 1 incident

Fall to the walkway or working surface

AFTER COMPLETING JANITORIAL DUTIES, CONTRACTOR WHITE GLOVE PRO CLEANING SVCS EE LOCKED THE DOORTO THE ADMIN BLD. SHE TURNED QUICKLY, STUBBED HER TOE & FELL TO THE GROUND ON HER RIGHT SIDE. FI RST AID WAS GIVEN UNTIL AMBULANCE ARRIVED. SHE WAS TRANSPORTED TO HOSPITAL FOR TESTS; SHE SUSTAINED 2 FRACTURED RIBS & FRACTURED STERNUM. TREATMENT CONSISTED OF MEDICATION ONLY.