Mining Incidents

Crusher #3 Metal/Non-Metal

JTL GROUP,INC. · Surface
Controlled by Knife River Corporation
Guernsey, Platte County, WY  ·  Intermittent
MSHA Mine ID: 4801518

Crusher #3 has $33K in proposed MSHA penalties and $0 outstanding across 3 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
27
Years on record
2000–2025
Latest incident
Jul 2025
Compliance record
MSHA citations since 2001
103
citations
23
significant & substantial
$32,826
proposed penalties
$27,573
paid to date
84% of proposed penalties paid to date, a $5,253 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
47
inspections on record
738
inspection hours
n/a
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.
Rate withheld: 738 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Crusher #3 has $33K in proposed MSHA penalties and $0 outstanding across 3 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.
$33K
proposed penalties
$28K
current assessed
$28K
paid to date
$0
outstanding
77 assessments are final orders; 3 contested dockets.
As of the most recent assessment on 2025-03-05.
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 2,051 0 0 0.0
2025 Q3 6,123 0 0 0.0
2025 Q2 7,723 0 0 0.0
2025 Q1 3,584 6 2 1674.1
2024 Q4 3,759 0 0 0.0
2024 Q3 4,251 0 0 0.0
2024 Q2 4,140 0 0 0.0
2024 Q1 3,540 0 0 0.0
Show 80 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 3,348 0 0 0.0
2023 Q3 4,241 0 0 0.0
2023 Q2 3,934 0 0 0.0
2023 Q1 0 2 0
2022 Q4 4,609 0 0 0.0
2022 Q3 4,897 0 0 0.0
2022 Q2 5,211 0 0 0.0
2022 Q1 5,198 16 4 3078.1
2021 Q4 2,798 0 0 0.0
2021 Q3 3,809 18 3 4725.6
2021 Q2 2,280 0 0 0.0
2021 Q1 2,416 0 0 0.0
2020 Q4 1,326 0 0 0.0
2020 Q3 3,412 4 3 1172.3
2020 Q2 3,231 0 0 0.0
2020 Q1 3,800 2 1 526.3
2019 Q4 1,035 0 0 0.0
2019 Q3 3,147 2 0 635.5
2019 Q2 3,339 0 0 0.0
2019 Q1 4,275 6 0 1403.5
2018 Q4 3,689 0 0 0.0
2018 Q3 5,163 0 0 0.0
2018 Q2 5,093 0 0 0.0
2018 Q1 6,383 0 0 0.0
2017 Q4 5,066 0 0 0.0
2017 Q3 3,964 0 0 0.0
2017 Q2 4,723 5 0 1058.6
2017 Q1 4,792 4 2 834.7
2016 Q4 5,108 0 0 0.0
2016 Q3 5,475 0 0 0.0
2016 Q2 5,198 0 0 0.0
2016 Q1 5,274 2 0 379.2
2015 Q4 4,671 0 0 0.0
2015 Q3 6,563 0 0 0.0
2015 Q2 5,444 0 0 0.0
2015 Q1 5,503 0 0 0.0
2014 Q4 3,237 0 0 0.0
2013 Q4 0 0 0
2013 Q3 0 0 0
2013 Q2 602 0 0 0.0
2013 Q1 2,563 1 0 390.2
2012 Q4 3,937 0 0 0.0
2012 Q3 3,363 2 0 594.7
2012 Q2 3,437 0 0 0.0
2012 Q1 3,771 2 0 530.4
2011 Q4 3,216 0 0 0.0
2011 Q3 3,515 0 0 0.0
2011 Q2 4,171 0 0 0.0
2011 Q1 3,021 0 0 0.0
2010 Q4 3,010 1 1 332.2
2010 Q3 2,245 9 5 4008.9
2010 Q2 2,843 0 0 0.0
2010 Q1 2,762 0 0 0.0
2009 Q4 2,863 0 0 0.0
2009 Q3 2,794 0 0 0.0
2009 Q2 3,803 0 0 0.0
2009 Q1 3,605 0 0 0.0
2008 Q4 2,122 8 0 3770.0
2008 Q3 2,695 2 1 742.1
2008 Q2 2,559 0 0 0.0
2008 Q1 3,184 6 0 1884.4
2007 Q4 3,434 0 0 0.0
2007 Q3 2,535 3 0 1183.4
2007 Q2 1,098 0 0 0.0
2006 Q1 200 0 0 0.0
2005 Q4 688 0 0 0.0
2003 Q2 0 0 0
2003 Q1 0 0 0
2002 Q4 0 0 0
2002 Q3 0 0 0
2002 Q2 0 0 0
2002 Q1 1,306 0 0 0.0
2001 Q4 2,596 2 1 770.4
2001 Q3 0 0 0
2001 Q2 4,077 0 0 0.0
2001 Q1 720 0 0 0.0
2000 Q4 0 0 0
2000 Q3 1,024 0 0 0.0
2000 Q2 0 0 0
2000 Q1 3,186 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

27 on file

2025 · 1 incident

July 18, 2025 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
JTL GROUP,INC. · Caught in, under or between a moving and a stationary object

large rock got stuck in the jaw of the crusher. A TM attempted to use a chain to wedge between the rock and the jaw dies to break it up. As the rock and jaw pulled the chain down the TM tried to pull the chain up, resulting in smashing EE's hand between the chain and the railing causing laceration to left palm and a fracture to the 5th metacarpal

2024 · 3 incidents

November 6, 2024 WY · Metal/Non-Metal mechanic helper HANDLING OF MATERIALS
JTL GROUP,INC. · Over-exertion (Not Elsewhere Classified)

WHILE EXITING SKID STEER, EMPLOYEE FELT POP IN STOMACH.

August 26, 2024 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
JTL GROUP,INC. · Over-exertion in lifting objects

employee lifted the motor up to put it down where we could use the Crain to hoist it the rest of the way out. while lifting the motor employee felt something tear in the abdominal area. incident occurred 8/26/24 - it was reported 8/28/24 and found out EE was going to receive surgery 9/20/24 then surgery was moved up to 10/7/24

March 28, 2024 WY · Metal/Non-Metal mechanic helper HANDLING OF MATERIALS
JTL GROUP,INC. · Caught in, under or between a moving and a stationary object

Employee was moving a conveyor belt onto a stand, upon moving the belt EE's fingers were caught in between the conveyor belt and the screen guarding. the screen went through EE's glove and cause a laceration to the right index finger. resulting in three stitches. employee was released for work with no lost time.

2018 · 3 incidents

October 17, 2018 WY · Metal/Non-Metal miner, prospector, nec OTHER
McMurry Ready Mix Co. · Bodily reaction, (Not Elsewhere Classified)

Miner was coming down stairs of button house and felt pop in left knee area. Muscles around knee area are inflamed and weak.

January 8, 2018 WY · Metal/Non-Metal welder (non-shop) SLIP OR FALL OF PERSON
McMurry Ready Mix Co. · Fall onto or against objects

Miner tripped and fell, hitting back of head, causing laceration on back of head that required 7 staples

2016 · 6 incidents

November 28, 2016 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
McMurry Ready Mix Co. · Struck by... (Not Elsewhere Classified)

Muffler stack broke, striking and cutting right thumb. 5 stitches on right thumb.

August 17, 2016 WY · Metal/Non-Metal quality control technician, laboratory technician, laboratory assistant HANDLING OF MATERIALS
McMurry Ready Mix Co. · Over-exertion (Not Elsewhere Classified)

Sampling aggregate from flowing stream, was holding a 5 gallon bucket with both hands, sweeping the the bucket through the aggregate stream from side to side. Noticed pain in lower back. Pain gradually increased.

July 30, 2016 WY · Metal/Non-Metal greaser, grease man, oiler, lube man, dragline oiler HANDLING OF MATERIALS
McMurry Ready Mix Co. · Struck by flying object

Miner had a sliver of metal removed from right eye. At first EE thought it was an arc burn, but when it didn't get better EE went to eye doctor and had metal removed. No lost time.

May 12, 2016 WY · Metal/Non-Metal groundman, yardman MACHINERY
McMurry Ready Mix Co. · Flash burns (welding)

Employee was assisting welder, holding a piece of metal for welder to weld together and received arc burn to eyes.

March 18, 2016 WY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
McMurry Ready Mix Co. · Struck by... (Not Elsewhere Classified)

Employee was cutting a piece of pipe when another employee driving a skidster hit the other end of the pipe knocking the pipe into the knee of the employee cutting.

March 3, 2016 WY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
McMurry Ready Mix Co. · Struck by falling object

Employee carrying drill hammer to drill. Slipped from hands and broke leg.

2012 · 6 incidents

September 25, 2012 WY · Metal/Non-Metal ledgeman/hand, quarry man HANDLING OF MATERIALS
McMurry Ready Mix Co. · Struck against stationary object

Miner using a chain with a loader bucket tooth attached to the end to free a large rock that was stuck in the jaw crusher. Rock was lifted but when rock settled back down it pulled the chain downward. The end of the chain the miner was holding cut the miners right hand which required stitches.

July 5, 2012 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
McMurry Ready Mix Co. · Caught in, under or between a moving and a stationary object

Miner installing belly pan underneath Cat D-9 dozer. Chain being used to hold pan in position slipped pinching miner' s hand between pan and dozer undercarriage. Left little finger was fractured.

June 11, 2012 WY · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
McMurry Ready Mix Co. · Struck against a moving object

The articulated haul truck the miner was operating lost power traveling up a ramp. The truck rolled backward and was stopped by a topsoil pile. The abrupt stop jarred the miner's right arm causing a contusion. The contusion caused be a possible muscle tear or vessel tear.

May 30, 2012 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
McMurry Ready Mix Co. · Struck by... (Not Elsewhere Classified)

Miner was holding metal punch used to knock out a pin in a dozer swing frame. Hammer used to drive in the pin hit miner's hand. Laceration to miner's right middle finger. Required stitches.

May 21, 2012 WY · Metal/Non-Metal ledgeman/hand, quarry man POWERED HAULAGE
McMurry Ready Mix Co. · Struck by falling object

Miner was attaching bucket on skid steer loader. While bucket was raised, miner was hammering in pivot pins. His foot was below the raised bucket while hammering. The bucket slipped out of the attachment point and fell on his left foot. A contusion of the left foot occurred.

January 20, 2012 WY · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
McMurry Ready Mix Co. · Fall down stairs

Injury occurred 01/20/2012. Miner slipped going down button house stairs. Was in a hurry. Fractured right thumb. Miner did not inform supervisor. Miner obtained medical care on 01/28/2012. Safety Director notified on 02/01/2012. No lost time has resulted.

2011 · 2 incidents

December 8, 2011 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer STEPPING OR KNEELING ON OBJECT
McMurry Ready Mix Co. · Struck against stationary object

Miner was walking on a variety of ground surface conditions and on different equipment. At some point during his shift, the miner stepped on a rock, equipment surface or the like and broke a bone in his left foot.

February 7, 2011 WY · Metal/Non-Metal pumper SLIP OR FALL OF PERSON
McMurry Ready Mix Co. · Fall to the walkway or working surface

Miner slipped on ice while walking outside at gravel pit. Fell backward and landed on shoulders/back. Strain to neck and torso muscles.

2010 · 2 incidents

July 20, 2010 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
McMurry Ready Mix Co. · Over-exertion in lifting objects

Miner notified company Safety Director on 08/03/2010 of injury to his shoulder that occurred on 07/20/2010. Miner injured shoulder while lifting electrical cables during crusher set up. Has been working since injury date. Miner now feels he needs to see physician. Safety Director will investigate validity of injury claim.

March 24, 2010 WY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator OTHER
McMurry Ready Mix Co. · Struck by flying object

Miner performing maintenance on equipment. Dust/dirt blown into eye by wind. Miner was wearing eye protection. Dust/dirt embedded in eye.

2008 · 3 incidents

July 31, 2008 WY · Metal/Non-Metal pumper HANDTOOLS (NONPOWERED)
McMurry Ready Mix Co. · Struck against stationary object

Miner was shoveling under belt. Shovel contacted belt and whipped back across left knee. Bruised knee resulted. Miner submitted injury report to safety office on 8/15/2008. This 7000-1 is a resubmission of a report form submitted 8/15/2008.

June 18, 2008 WY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
McMurry Ready Mix Co. · Caught in, under or between two or more moving objects

Miner working next to a cable winch mechanism. The winch gear mechanism released causing the winch handle to spin. The rotating winch handle struck the miner on the left forearm causing swelling and bruising.

February 19, 2008 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
McMurry Ready Mix Co. · Over-exertion (Not Elsewhere Classified)

Miner was shoveling material out from underneath a belt. The miner twisted his left knee in the course of his shoveling motion. Injury did not appear serious at the time. The miner went to a doctor two day later due to swelling.

2000 · 1 incident

January 4, 2000 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Rissler & Mc Murry Company · Struck by... (Not Elsewhere Classified)

EE WORKING TO HELP SET UP JAW CRUSHER, POSITIONING LEGS WHEN LEG SWUNG FREE & SMASHED HIS HAND. RIGHT HAND LACERATION BETWEEN THUMB AND FIRST FINGER REQUIRING MINOR SURGERY TO REPLACE DEAD SK IN AND THERAPY.

For insurers, brokers, and safety consultants

The full compliance file on Crusher #3

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.