Mining Incidents

Thun Field Pit Metal/Non-Metal

Controlled by Heidelberg Materials AG
Puyallup, Pierce County, WA  ·  Active
MSHA Mine ID: 4501111

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Fatalities
0
Total incidents
16
Years on record
2000–2023
Latest incident
Oct 2023
Compliance record
MSHA citations since 2000
184
citations
39
significant & substantial
$48,030
proposed penalties
$37,771
paid to date
Source: MSHA violations data, updated weekly.
Quarterly safety rates
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 5,636 9 2 1596.9
2025 Q3 1,066 5 1 4690.4
2025 Q2 6,708 0 0 0.0
2025 Q1 1,148 2 0 1742.2
2024 Q4 5,733 0 0 0.0
2024 Q3 6,497 0 0 0.0
2024 Q2 7,138 11 4 1541.0
2024 Q1 6,011 0 0 0.0
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.

Reportable incidents

16 on file

2023 · 1 incident

October 30, 2023 WA · Metal/Non-Metal mine manager, mine foreman, mine owner HANDLING OF MATERIALS
Corliss Resources LLC · Fall to the walkway or working surface

Miner was closing a valve and their hand slipped as they were tightening the valve. Miner lost balance and they attempted to catch themselves as they fell. Miner injured their left elbow when they fell.

2018 · 2 incidents

November 30, 2018 WA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator POWERED HAULAGE
Corliss Resources LLC · Struck by... (Not Elsewhere Classified)

Mud and water dripped into employees face and eyes causing eye to become agitated.

February 6, 2018 WA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Corliss Resources LLC · Struck by falling object

Employee was removing heavy part (u joint) from under loader. Once removed, it slipped from employees hand and fell to the ground pinching their finger between the part and the floor.

2016 · 1 incident

October 25, 2016 WA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech STEPPING OR KNEELING ON OBJECT
Corliss Resources LLC · Struck against stationary object

Rolled ankle on rock on the ground while walking through pit.

2011 · 2 incidents

July 21, 2011 WA · Metal/Non-Metal miner, prospector, nec POWERED HAULAGE
Corliss Resources LLC · Struck against a moving object

No Miners involved. Early morning on 7/21/2011 private vehicle driving on private roads swerved off road, ran through 3 fences and into mine property. Vehicle hit berm at edge of pond. Both driver and passenger were taken from scene by ambulance. Before mine opened for the day. Was immediately reported to MSHA.

July 21, 2011 WA · Metal/Non-Metal miner, prospector, nec POWERED HAULAGE
Corliss Resources LLC · Struck against a moving object

No Miners involved. Early morning on 7/21/2011 private vehicle driving on private roads swerved off road, ran through 3 fences and into mine property. Vehicle hit berm at edge of pond. Both driver and passenger were taken from scene by ambulance. Before mine opened for the day. Was immediately reported to MSHA.

2010 · 1 incident

October 20, 2010 WA · Metal/Non-Metal outside foreman, leadman HANDLING OF MATERIALS
Corliss Resources LLC · Struck by flying object

While removing bearing on the head pulley of the feeder belt a piece of steel splintered off and lacerated employee's left forearm.

2009 · 1 incident

February 9, 2009 WA · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor SLIP OR FALL OF PERSON
Corliss Resources LLC · Fall onto or against objects

Employee was climbing up to get into a piece of equipment when he slipped down and hit his side on the equipment.

2007 · 1 incident

November 26, 2007 WA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Corliss Resources LLC · Caught in, under or between a moving and a stationary object

While employee was lowering a lift cylinder onto a loader, employee tried to line up the cylinder. His finger got caught/smashed between the cylinder and the loader. No property damage, could lose a portion on his right ring finger.

2006 · 1 incident

November 29, 2006 WA · Metal/Non-Metal welder (shop) HANDLING OF MATERIALS
Corliss Resources LLC · Struck by falling object

Employee dropped a 4 foot long piece of metal on top of left foot. Did not go to the doctor at the time. Went to doctor the next day, no treatment given. Continued to hurt, went back to doctor, off work from 12/3/06 to 12/6/06, back to work 12-6-06 went on light duty til 2/6/06, then off work til 2/26/07, then back full time

2005 · 2 incidents

June 6, 2005 WA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Corliss Resources LLC · Fall from machine

Employee was dismounting a forklift when he slipped & grabbed the roll bar. Wrenched his left shoulder. Initially it was just reported as an incident. Didn't seek medical attention until 6/27/05(from 2200602400092 2/5'd). Returned to work & then went off 7/18/05 with same injury - went for surgery. Returned 1/9/06

April 21, 2005 WA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Corliss Resources LLC · Fall to the walkway or working surface

EE WAS WALKING UNDER A CONVEYOR WHILE PAINTING IT. HE STEPPED ON SOME UNEVEN GROUND AND FELL, HURTING HIS ANKLE.

2001 · 2 incidents

June 24, 2001 WA · Metal/Non-Metal mine manager, mine foreman, mine owner HANDLING OF MATERIALS
Puyallup Sand & Gravel · Struck by... (Not Elsewhere Classified)

CARRYING MATERIAL WITH CO-WORKER. CO-WORKER SLIPPED, JERKING MATERIAL OUT OF HAND.

2000 · 2 incidents

June 22, 2000 WA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Puyallup Sand & Gravel · Struck by... (Not Elsewhere Classified)

HITTING STEEL WEDGE WITH SLEDGE HAMMER. PIECE BROKE OFF, HITTING EYE. WEARING GOGGLES AT TIME.