Mining Incidents

Dupont PitMetal/Nonmetal

Controlled by Taiheiyo Cement Corp
Dupont, Pierce County, WA · Active
MSHA Mine ID: 4503334
Fatalities
1
Total incidents
54
Years on record
2000–2025
Latest incident
Nov 2025

Fatalities at this mine

1 recorded
Struck by rolling or sliding object

CONCRETE BLOCK WALL FELL ON VICTIM. ACCIDENT WAS FATAL.

Reportable incidents

53 on file (excluding fatalities above)

2025 · 2 incidents

Over-exertion in pulling or pushing objects

EE was using a cat telehandler to move urethane sheets from the shop to chem ad, load shifted and EE stopped and was attempting to readjust the load when they heard a small pop in their right shoulder.

Struck against a moving object

EE stated EE has a sore back from running loader

2024 · 1 incident

(Not Elsewhere Classified)

Recordable Hearing Loss in left ear

2023 · 1 incident

Struck by... (Not Elsewhere Classified)

Employee was performing a king pin installation, had a shim get stuck and when they pulled on shim to remove, the shim broke and cut their left index finger which required 3 stitches.

2022 · 3 incidents

Struck by falling object

EE was pushing a barrel on a roller cart when one of the wheels got caught on a rock/debris on the shop floor. This caused the barrel to begin to tip. EE reached out and caught it and in doing so deeply lacerated the tip of a finger on right hand on the underside of the barrel lip. EE needed five stitches and returned to duty the next day.

Over-exertion in pulling or pushing objects

Employee 1 was working with employee 2 pulling wire through new conduit. The two employees took turns between pulling and feeding wire. Employee 1 eventually wrapped the mule tape around a piece of conduit to gain better leverage. After the work had been completed employee 1 told employee 2 that employee 1 believed employee 1 had tweaked back.

(Not Elsewhere Classified)

Personal medical emergency - stroke

2020 · 1 incident

Caught in, under or between a moving and a stationary object

While removing gear box from shaft ee's thumb was pinched between lifting chain and gear box. EE sought medical treatment the following day (Saturday). Was released to full duty on Monday.

2019 · 1 incident

Over-exertion in lifting objects

While maneuvering an electrical component employee felt discomfort in EE's back, continued to work the remainder of the shift. Diagnosed with back strain on 1/4 restricted from work until 1/16.

2018 · 1 incident

Over-exertion in wielding or throwing objects

Miner was using a 30 ton ram and a 16 lb hammer to replace pins on a D10 undercarriage. While swinging the hammer to loosen the pins, ee felt some pain in back. EE reported this to employer, but didn't want medical care. Unbeknownst to the operator, employee sought chiropractic care. On 2/20/18 employee asked the operator to provide medical care and filed a claim.

2017 · 1 incident

Fall onto or against objects

Employee tripped over a box while preparing a package for shipment and fell into a cabinet receiving contusions to right forearm, elbow, and shoulder region. Initial treatment was diagnostic in nature only, returned to full duty. Employee received physical therapy for shoulder contusion on 12/14/2017. Injury became reportable on 12/14/2017.

2016 · 1 incident

Struck against stationary object

An employee was installing a tensioner pulley on a D10N motor. The employee grabbed the tensioner pulley without realizing how sharp the outer edge of the pulley was. The employee was wearing latex gloves at the time of the incident.

2015 · 1 incident

Struck by... (Not Elsewhere Classified)

EE struck right thumb with 4# hammer while installing a pin in a bucket shroud resulting in a crushing/laceration injury to the thumb requiring 3 stitches. no restricted duty

2014 · 1 incident

(Not Elsewhere Classified)

Recordable Hearing Loss Left Ear

2011 · 2 incidents

Struck against stationary object

Employee was using a 4"" grinder with flapper wheel attached in a kneeling position. Upon completing his task effected employee released the trigger and started to stand up when the back of his right hand came in contact with the still rotating flapper wheel causing a laceration to the back of his hand requiring 4 stitches.

Struck by... (Not Elsewhere Classified)

Effected employee was handing a return roller guard up to a co-worker; the guard slipped out of the co-worker's hand and fell striking the effected employee on the hard hat and shoulder. The force of impact caused the employee to bite down breaking 1 front tooth and chipping the other front tooth, he also sprained his neck and bruised his right shoulder.

2010 · 1 incident

Caught in, under or between (Not Elsewhere Classified)

Employee was replacing on a brake can; while caging the spring the can slipped and the employee's right thumb was pinched/cut requiring 9 stitches.

2009 · 2 incidents

Fall to the walkway or working surface

Employee slipped on dock catwalk, fell and sprained left knee. It was raining at the time and that section of catwalk was slippery due to the weather conditions and some algea growth.

Struck against a moving object

Affected employee was operating a dozer during his shift. He complained of back pain but indicated that no particular incident had occurred causing this pain but thought it was from operating the dozer. The employee was taken for medical observation where it was determined that he had a strain to the lower back. He was placed on modified duty.

2008 · 2 incidents

Struck by... (Not Elsewhere Classified)

While working on a conveyor belt repair the employee was using a utility knife, the knife slipped and the employee received a cut to his hand. The cut required 5 stitches.

Struck by... (Not Elsewhere Classified)

foreign object in eye, employee used eye wash to flush his eye, thought he had rinsed it out. The next morning eye was irritated so he was sent to the clinic where they removed a steel sliver from the employee's left eye.

2007 · 1 incident

Caught in, under or between (Not Elsewhere Classified)

Employee was positioning a jackstand under a trailer. While his right hand slipped allowing the head of the jackstand to fall and pinch his left index finger. Employee received 5 stitches and returned to work his following shift.

2006 · 1 incident

Struck by... (Not Elsewhere Classified)

Struck left thumb with hammer. Three stitches on thumb.

2004 · 3 incidents

Struck by... (Not Elsewhere Classified)

Employee was changing tickets in printer when a customer's truck bumped the printer enclosure bruising arm. Note: this injury was limited to one doctors visit and was first aid only until 1-31-05, She still had a sore arm so she is going to physical therapy, this is why this injury is being reported at this time.

Struck by... (Not Elsewhere Classified)

Employee was cutting conveyor belt with razor knife when the knife slipped and cut his leg above the left knee

Struck against stationary object

Employee was looking in hopper while doing maintenance, when he reached up for a hand hold he cut his left index finger on a sharp edge.

2003 · 6 incidents

Caught in, under or between (Not Elsewhere Classified)

EE WAS ENGAGED IN CHANGING A BOTTOM ROLL ON A D9R, WHILE MOVING THE ROLLER THE FOAM PROTECTIVE COVER SLIPPED OFF THE SHAFT. THE ROLL BENT HIS LEFT RING FINGER.

Fall to the walkway or working surface

EE TRIPPED AND FELL BACKWARD EE TRIPPED ON A MATERIAL SAMPLE.

Over-exertion in lifting objects

WHEN LIFTING FEED PLATE FOR CRUSHER EMPLOYEE FELT PAIN IN BACK.

Struck by... (Not Elsewhere Classified)

WHILE REMOVING ROCKS FROM GRIZZLEY FEEDER A PIECE OF ROCK STRUCK EMPLOYEE IN FOREHEAD BETWEEN HARD HAT AND SAFETY GLASSES.

Struck by... (Not Elsewhere Classified)

EE WAS REPAIRING A SCREEN SPRAYBAR, NOTICED AN IRRITATION IN LEFT EYE. THOUGHT HE WAS FLASH BURNED IRRITATION DID NOT GO AWAY. WENT TO HOSPITAL ON 4-9-03 TO HAVE PARTICLE REMOVED.

Over-exertion (Not Elsewhere Classified)

EE WAS WORKING ON A GEAR BOX DRIVE FOR A WATER CLAIRIFIER. THE EE REMOVED A SECTION OF DECKING TO ALLOW ACCESS FOR OIL DRAIN BUCKET. EE STEPPEDINTO OPENING AND SPRAINED HIS RIGHT KNEE

2002 · 6 incidents

Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS OPENING A CHAIN BINDER AND WAS STRUCK IN THE CHIN, OPENING A CUT APP 1/2"" LONG ON THE LOWER CHIN SURFACE.

Over-exertion (Not Elsewhere Classified)

EE NOTICED SORE LEFT WRIST ON OR ABOUT DEC 10TH HE THOUGHT IT WAS DUE TO THE WORK ACTIVITY ON DEC 8TH EE WENT TO DR ON 12-17-02. DR GAVE EE AN RX FOR ANTI-INFLAMATORY AND RELEASED THE FULL DUT Y.

Fall onto or against objects

EMPLOYEE WAS REPAIRING SCREEN DECK, FOOT CAUGHT IN DECK HIT RIB CAGE ON CROSS BEAM BEFORE HE CAUGHT HIMSELF.

Over-exertion (Not Elsewhere Classified)

LONG TERM CONDITION- POSSIBLE FROM WORKING ON KNEES.

Struck by... (Not Elsewhere Classified)

EE WAS WORKING ON A LARGE PUMP REPAIRING LINING. LINER SLIPPED OUT OF HOUSING HITTING LEG, CAUSING FRACTURE.

Over-exertion in lifting objects

PICKING UP A LARGE BATTERY

2001 · 5 incidents

Fall to the walkway or working surface

MUSCLE BEHIND LEFT KNEE FIRST BEGAN HURTING ON 8-11-01. THEN ON 8-14-01 WHILE WALKING ON UNEVEN GROUND, LEFT LEG WENT OUT FROM UNDERNEATH HIM AND HE FELL.

Struck by falling object

EE WAS LYING ON HIS BACK LOOSENING BOLTS ON THE TANDEM AXLES OF A TRUCK. DUST/METAL PARTICLES FELL INTO HIS EYE.

Struck by falling object

WHILE REMOVING BOLT FROM HOPPER WITH RIGHT HAND LEFT HAND WAS UNDER HOPPER. WHEN BOLT WAS REMOVED HOPPER FELL CUTTING FINGERS ON LEFT HAND.

Caught in, under or between (Not Elsewhere Classified)

WHILE CLEARING OVERSIZE ROCK FROM SCALPING BURRS ROCK ROLLED ON HAND.

Caught in, under or between a moving and a stationary object

WHILE EXITING CAT D-400 HAUL TRUCK EE S RIGHT MIDDLE FINGER WAS SMASHED IN DOOR JAM.

2000 · 10 incidents

Struck against a moving object

INJURED WRIST OPENING A STUCK WINDOW.

Struck against a moving object

OPERATING D10 DOZER

Struck by... (Not Elsewhere Classified)

EMPLOYEE SLIPPED WHILE CUTTING BELT WITH A KNIFE.

Over-exertion (Not Elsewhere Classified)

EE PACKING LIGHT FIXTURE, STEPPED FROM ELECTRICAL VAN AND SPRAINED RT ANKLE ON UNEVEN CONCRETE.

Inhalation of radiations, caustics, toxic and noxious substances

FUMES FROM RECENT PAINTING GAVE EE AN ILL FEELING.

Over-exertion (Not Elsewhere Classified)

PULLED MUSVLE CLIMBING UP STAIRS TO CAB OF BULLDOZER, FELT MORE PAIN AS HE MOVED AROUND IN SEAT.

Struck by... (Not Elsewhere Classified)

EE WAS USING WRENCH, WRENCH SLIPPED LIFTING HIM IN THE KNEE.

Over-exertion (Not Elsewhere Classified)

EE PULLED MUSCLE IN LEG. PLEASE SEE ATTACHED LETTER.

Over-exertion (Not Elsewhere Classified)

SLIP ON STAIRS, TWISTING ANKLE. CONTRIBUTING FACTOR IS A INJURY TO ANKLE IN 1998.

Struck by flying object

WAS USING AN ELECTRIC GRINDER TO GRIND A SCREEN SHAFT. HE GOT A PIECE OF METAL IN HIS EYE.