Mining Incidents

Enumclaw Pit & Plant Metal/Non-Metal

Controlled by Heidelberg Materials AG
Mapel Valley, King County, WA  ·  Active
MSHA Mine ID: 4500609

Enumclaw Pit & Plant has $82K in proposed MSHA penalties and $2K outstanding across 10 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
25
Years on record
1991–2022
Latest incident
May 2022
Compliance record
MSHA citations since 2000
293
citations
67
significant & substantial
$82,443
proposed penalties
$71,585
paid to date
87% of proposed penalties paid to date, a $10,858 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
90
inspections on record
1,617
inspection hours
18.1
citations per 100 inspection hours
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
293 citations across 1,617 inspection hours.
Source: MSHA inspections data, updated weekly.

Enumclaw Pit & Plant has $82K in proposed MSHA penalties and $2K outstanding across 10 contested dockets.

Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$82K
proposed penalties
$74K
current assessed
$72K
paid to date
$2K
outstanding
290 assessments are final orders; 10 contested dockets.
As of the most recent assessment on 2026-05-05.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Quarterly safety rates
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 4,746 0 0 0.0
2025 Q3 4,715 5 0 1060.4
2025 Q2 5,896 0 0 0.0
2025 Q1 6,655 9 2 1352.4
2024 Q4 7,102 0 0 0.0
2024 Q3 7,549 0 0 0.0
2024 Q2 7,635 0 0 0.0
2024 Q1 7,167 6 0 837.2
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 6,810 0 0 0.0
2023 Q3 7,209 1 0 138.7
2023 Q2 7,550 6 0 794.7
2023 Q1 8,684 0 0 0.0
2022 Q4 7,555 0 0 0.0
2022 Q3 8,395 5 0 595.6
2022 Q2 8,684 0 0 0.0
2022 Q1 9,418 1 0 106.2
2021 Q4 8,991 0 0 0.0
2021 Q3 9,135 7 1 766.3
2021 Q2 8,360 0 0 0.0
2021 Q1 8,534 0 0 0.0
2020 Q4 7,622 8 5 1049.6
2020 Q3 8,951 0 0 0.0
2020 Q2 5,954 6 0 1007.7
2020 Q1 7,955 0 0 0.0
2019 Q4 7,574 0 0 0.0
2019 Q3 8,009 3 0 374.6
2019 Q2 8,844 5 3 565.4
2019 Q1 7,494 1 0 133.4
2018 Q4 8,651 1 1 115.6
2018 Q3 9,144 0 0 0.0
2018 Q2 9,506 0 0 0.0
2018 Q1 8,788 1 0 113.8
2017 Q4 8,413 4 1 475.5
2017 Q3 8,753 0 0 0.0
2017 Q2 9,420 12 4 1273.9
2017 Q1 8,913 0 0 0.0
2016 Q4 11,164 0 0 0.0
2016 Q3 9,088 5 2 550.2
2016 Q2 8,768 0 0 0.0
2016 Q1 8,142 6 2 736.9
2015 Q4 8,221 3 0 364.9
2015 Q3 7,777 1 0 128.6
2015 Q2 6,950 4 1 575.5
2015 Q1 7,464 0 0 0.0
2014 Q4 8,186 2 0 244.3
2014 Q3 9,801 8 2 816.2
2014 Q2 11,252 0 0 0.0
2014 Q1 10,719 6 1 559.8
2013 Q4 7,797 2 2 256.5
2013 Q3 9,325 0 0 0.0
2013 Q2 7,579 0 0 0.0
2013 Q1 7,463 3 0 402.0
2012 Q4 6,538 0 0 0.0
2012 Q3 6,740 7 2 1038.6
2012 Q2 3,494 0 0 0.0
2012 Q1 3,611 2 0 553.9
2011 Q4 6,911 0 0 0.0
2011 Q3 6,182 2 0 323.5
2011 Q2 5,224 0 0 0.0
2011 Q1 4,512 6 2 1329.8
2010 Q4 4,688 0 0 0.0
2010 Q3 4,826 0 0 0.0
2010 Q2 3,615 5 3 1383.1
2010 Q1 3,722 2 2 537.3
2009 Q4 5,667 0 0 0.0
2009 Q3 5,990 4 2 667.8
2009 Q2 4,276 0 0 0.0
2009 Q1 5,031 7 1 1391.4
2008 Q4 5,031 0 0 0.0
2008 Q3 6,995 1 0 143.0
2008 Q2 6,744 0 0 0.0
2008 Q1 8,463 5 0 590.8
2007 Q4 10,598 0 0 0.0
2007 Q3 11,304 0 0 0.0
2007 Q2 8,334 4 1 480.0
2007 Q1 8,502 0 0 0.0
2006 Q4 8,056 2 0 248.3
2006 Q3 10,552 0 0 0.0
2006 Q2 7,298 4 1 548.1
2006 Q1 6,696 0 0 0.0
2005 Q4 8,068 2 0 247.9
2005 Q3 8,346 2 0 239.6
2005 Q2 7,374 0 0 0.0
2005 Q1 7,054 4 2 567.1
2004 Q4 6,964 6 1 861.6
2004 Q3 6,017 0 0 0.0
2004 Q2 6,866 10 1 1456.5
2004 Q1 7,112 8 3 1124.9
2003 Q4 8,230 0 0 0.0
2003 Q3 7,283 4 0 549.2
2003 Q2 7,307 0 0 0.0
2003 Q1 4,582 0 0 0.0
2002 Q4 3,641 0 0 0.0
2002 Q3 4,025 2 0 496.9
2002 Q2 4,368 0 0 0.0
2002 Q1 6,079 6 0 987.0
2001 Q4 5,594 0 0 0.0
2001 Q3 6,765 2 0 295.6
2001 Q2 6,340 0 0 0.0
2001 Q1 5,499 0 0 0.0
2000 Q4 7,095 0 0 0.0
2000 Q3 6,010 0 0 0.0
2000 Q2 6,339 0 0 0.0
2000 Q1 6,336 69 19 10890.2
No fatalities recorded at this mine.

Reportable incidents

25 on file

2022 · 1 incident

May 24, 2022 WA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
Corliss Resources LLC · Caught in, under or between a moving and a stationary object

Driving a haul truck, pinched right thumb in door frame.

2021 · 1 incident

March 12, 2021 WA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Corliss Resources LLC · Caught in, under or between a moving and a stationary object

Wrench hit finger between wrench and truck frame.

2020 · 1 incident

January 8, 2020 WA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Corliss Resources LLC · Over-exertion in pulling or pushing objects

EE had been suffering from cough, on 1-8-20 EE was jacking up a truck when EE felt a pop in back and ribs.

2018 · 1 incident

May 4, 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... (Not Elsewhere Classified)

While installing drive shaft into loader, drive shaft slipped and smashed middle finger on right hand.

2016 · 1 incident

February 12, 2016 WA · Metal/Non-Metal utility man, shift tech, service/dump truck operator HANDLING OF MATERIALS
Corliss Resources LLC · Struck by... (Not Elsewhere Classified)

Placing punch plate in place, plate slipped and smashed left ring finger between screen and boot. 6 stitches were received at Enumclaw ER. IE was immediately released to return to work.

2015 · 2 incidents

April 16, 2015 WA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Corliss Resources LLC · Struck by... (Not Elsewhere Classified)

Had just completed using electrical testing rod. Stood up. Went to put on hard hat with rod still in hand. Rod went under safety glasses and poked eye.

March 20, 2015 WA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Corliss Resources LLC · Flash burns (welding)

Employee was welding using Arc welder. When finished he removed his hood. He then stood up. As he was standing up he bumped the rod causing it to turn on. While it was on he received a flash burn to his eyes. Employee did not go to the doctor until 3/21/2015

2013 · 1 incident

June 27, 2013 WA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Corliss Resources LLC · Struck by... (Not Elsewhere Classified)

Two employees were removing a screen when the injured employees crow bar slipped and hit him in the hip.

2012 · 1 incident

May 15, 2012 WA · Metal/Non-Metal ledgeman/hand, quarry man HANDTOOLS (NONPOWERED)
Corliss Resources LLC · Caught in, under or between a moving and a stationary object

Employee pinched his finger between a cone and the wedge he was using to secure the cone still while he was turning the bolts on the cone. EMPLOYEE DID NOT REPORT THE INCIDENT UNTIL THE NEXT DAY. HE DID NOT SEEK OR RECEIVE MEDICAL TREATMENT UNTIL 5/24/2012. I FOUND OUT ABOUT THE MEDICAL TREATMENT WHEN THE DOCTOR CALLED ME DIRECTLY ON 5/25/2012.

2011 · 2 incidents

October 26, 2011 WA · Metal/Non-Metal welder (shop) HANDLING OF MATERIALS
Corliss Resources LLC · Struck by... (Not Elsewhere Classified)

A snap ring was coming off of a radial stacker tire. The employee was trying to repair/reset the snap ring when it popped off the tire, hitting the employee in the right ring finger. The employee needed stitches for the laceration on his finger

August 11, 2011 WA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Corliss Resources LLC · Over-exertion in lifting objects

Strained his lower back when lifting a piece of a machine. Employee did not report this accident officially or visit to doctor. We were made aware of his trip to the doc on 9/2/11 when we received workers comp information from L&I. Employment was termed for unrelated issues on 8/17/11, employee saw doc for first time on 8/20/11. No return to work due to layoff, not injury.

2010 · 2 incidents

July 14, 2010 WA · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Corliss Resources LLC · Caught in, under or between (Not Elsewhere Classified)

Employee was hitting a part with a rubber mallet. He was holding the part with his left hand. He hammered down catching his left little finger, smashing it.

March 17, 2010 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 (Not Elsewhere Classified)

working in shop, removing spacer on piece of equipment being worked on, top rail slipped, upper piece slipped smashing third and fourth finger on left hand

2009 · 1 incident

January 15, 2009 WA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator ELECTRICAL
Corliss Resources LLC · Flash burns (electric)

Employee was working in a fuse box and did not properly shut off the power to the fuse box first. Caused an arc that caused flash burns to employees hands.

2008 · 3 incidents

June 18, 2008 WA · Metal/Non-Metal welder (shop) POWERED HAULAGE
Corliss Resources LLC · Fall onto or against objects

Employee was using a torch to cut a conveyor frame. When he cut away one portion of the conveyor frame the other portion where he was tied off to began to collapse and slide down a hill. As he tried to jump free, his safety harness pulled him into a conveyor cross member, striking his back and right side. He was taken to the local hospital by ambulance.

March 3, 2008 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 from machine

Employee was getting out of a truck, jumped to ground, acute lumbar sprain.

February 13, 2008 WA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Corliss Resources LLC · Struck against a moving object

Employee was driving a loader and ran over pot holes that jolted him. Jolt caused lumbar strain.

2007 · 2 incidents

May 2, 2007 WA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDTOOLS (NONPOWERED)
Corliss Resources LLC · Caught in, under or between (Not Elsewhere Classified)

Employee was unloading concrete blocks out of the back of a truck when his left thumb got squeezed between the chains used to lift the ecology blocks. Pressure caused a cut in his thumb.

February 19, 2007 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)

One employee was lifting a steel plate with a forklift; injured employee was standing on the ground spotting and giving direction. Forklift got caught on the steel plate underneath the one being lifted. The steel plate being lifted slipped off of the forks and hit the injured employee in the chest and on the chin. Caused bruising to the ribs and slight fracture of the collarbone.

2005 · 2 incidents

September 14, 2005 WA · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor HANDTOOLS (NONPOWERED)
Corliss Resources LLC · Struck by... (Not Elsewhere Classified)

INDIVIDUAL WAS CUTTING A BELT WITH A UTILITY KNIFE.HE WAS CUTTING WITH A MOTION TOWARD HIS BODY WHEN THE KNIFE RELEASED FROM THE BELT. HE STRUCK HIS LEG WITH THE BLADE.

July 20, 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 · Over-exertion (Not Elsewhere Classified)

Employee was climbing down from a conveyor when he stepped down he twisted his knee.

2004 · 2 incidents

October 8, 2004 WA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Corliss Resources LLC · Struck by flying object

A ROCK LAUNCHED FROM #1 CONE AND HIT EMPLOYEE ON THE LEFT ARM (ELBOW).

March 23, 2004 WA · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Corliss Resources LLC · Struck by... (Not Elsewhere Classified)

WAS RUNNING A 4" GRINDER AND SOMETHING GOT UNDER HIS SAFETY GLASSES.

1995 · 1 incident

June 14, 1995 WA · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Tim Corliss & Son Inc · Fall to the walkway or working surface

FELL WHILE CARRYING PIPE

1991 · 1 incident

March 4, 1991 WA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator STEPPING OR KNEELING ON OBJECT
Tim Corliss & Son Inc · Struck against stationary object

OPERATING LOADER, WHILE GETTING OFF STEPPED ON ROCK TWISTING RIGHT KNEE.

For insurers, brokers, and safety consultants

The full compliance file on Enumclaw Pit & Plant

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.