Mining Incidents

Crusher #7 Metal/Non-Metal

JTL GROUP,INC. · Surface
Controlled by Knife River Corporation
Casper, Natrona County, WY  ·  Intermittent
MSHA Mine ID: 4801598

Crusher #7 has $17K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
15
Years on record
2005–2021
Latest incident
Nov 2021
Compliance record
MSHA citations since 2004
84
citations
20
significant & substantial
$17,432
proposed penalties
$17,432
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
47
inspections on record
684
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: 684 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 #7 has $17K in proposed MSHA penalties and $0 outstanding across 1 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.
$17K
proposed penalties
$17K
current assessed
$17K
paid to date
$0
outstanding
83 assessments are final orders; 1 contested dockets.
As of the most recent assessment on 2026-01-20.
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 3,120 0 0 0.0
2025 Q3 5,287 0 0 0.0
2025 Q2 6,480 0 0 0.0
2025 Q1 3,257 0 0 0.0
2024 Q4 5,363 2 0 372.9
2024 Q3 4,462 0 0 0.0
2024 Q2 4,586 2 2 436.1
2024 Q1 4,054 0 0 0.0
Show 83 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 3,862 0 0 0.0
2023 Q3 6,184 2 0 323.4
2023 Q2 3,873 0 0 0.0
2023 Q1 3,990 2 0 501.3
2022 Q4 133 0 0 0.0
2022 Q3 3,593 9 5 2504.9
2022 Q2 4,587 0 0 0.0
2022 Q1 4,877 1 0 205.0
2021 Q4 4,428 0 0 0.0
2021 Q3 3,009 0 0 0.0
2021 Q2 6,221 1 0 160.7
2021 Q1 3,535 0 0 0.0
2020 Q4 3,880 11 3 2835.1
2020 Q3 3,287 1 0 304.2
2020 Q2 3,045 8 3 2627.3
2020 Q1 860 0 0 0.0
2019 Q4 4,624 0 0 0.0
2019 Q3 2,993 1 0 334.1
2019 Q2 1,534 0 0 0.0
2019 Q1 0 0 0
2018 Q4 1,554 0 0 0.0
2018 Q3 1,680 0 0 0.0
2018 Q2 1,997 0 0 0.0
2018 Q1 40 0 0 0.0
2017 Q4 0 0 0
2017 Q3 1,895 0 0 0.0
2017 Q2 712 1 0 1404.5
2016 Q4 16 0 0 0.0
2016 Q3 181 0 0 0.0
2015 Q2 0 0 0
2014 Q4 2,746 0 0 0.0
2014 Q3 8,469 0 0 0.0
2014 Q2 5,899 0 0 0.0
2014 Q1 0 0 0
2013 Q4 2,499 0 0 0.0
2013 Q3 2,678 0 0 0.0
2013 Q2 2,613 1 0 382.7
2013 Q1 1,981 0 0 0.0
2012 Q4 4,007 0 0 0.0
2012 Q3 4,285 0 0 0.0
2012 Q2 2,251 1 0 444.2
2012 Q1 1,464 0 0 0.0
2011 Q4 1,017 0 0 0.0
2011 Q3 2,764 3 0 1085.4
2011 Q2 3,243 0 0 0.0
2011 Q1 2,073 4 1 1929.6
2010 Q4 2,953 2 0 677.3
2010 Q3 2,628 0 0 0.0
2010 Q2 3,368 0 0 0.0
2010 Q1 3,236 2 1 618.0
2009 Q4 2,258 0 0 0.0
2009 Q3 5,069 2 2 394.6
2009 Q2 4,264 4 2 938.1
2009 Q1 3,223 0 0 0.0
2008 Q4 2,233 2 0 895.7
2008 Q3 3,535 0 0 0.0
2008 Q2 2,943 0 0 0.0
2008 Q1 2,173 6 0 2761.2
2007 Q4 3,967 0 0 0.0
2007 Q3 3,939 0 0 0.0
2007 Q2 3,320 0 0 0.0
2007 Q1 3,775 0 0 0.0
2006 Q4 3,302 3 0 908.5
2006 Q3 3,898 0 0 0.0
2006 Q2 5,658 0 0 0.0
2006 Q1 4,529 7 0 1545.6
2005 Q4 4,131 0 0 0.0
2005 Q3 4,031 0 0 0.0
2005 Q2 2,525 0 0 0.0
2005 Q1 1,978 1 0 505.6
2004 Q4 3,771 0 0 0.0
2004 Q3 3,700 0 0 0.0
2004 Q2 4,219 0 0 0.0
2004 Q1 3,867 4 1 1034.4
2003 Q4 2,754 0 0 0.0
2003 Q3 5,645 0 0 0.0
2003 Q2 6,312 0 0 0.0
2003 Q1 2,824 0 0 0.0
2002 Q4 1,745 0 0 0.0
2002 Q3 4,968 0 0 0.0
2002 Q2 2,708 0 0 0.0
2002 Q1 2,040 0 0 0.0
2001 Q4 3,125 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

15 on file

2021 · 2 incidents

November 22, 2021 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
JTL GROUP,INC. · Caught in, under or between a moving and a stationary object

EMPLOYEE INSPECTING BLOW BARS ON IMPACT,ELBOW STRUCK THE BREAKER PLATES AND ROTOR COTINUED TO ROLL. THIS CAUSED BREAK IN RIGHT WRIST.

March 30, 2021 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
JTL GROUP,INC. · Fall from machine

Placing cat walk on fuel tank to avoid falls while checking fuel levels. Cat walk slipped falling to ground before secured. Employee fell to ground with cat walk.

2020 · 1 incident

January 15, 2020 WY · Metal/Non-Metal electrician, lineman HANDLING OF MATERIALS
McMurry Ready Mix · Struck by... (Not Elsewhere Classified)

While helping Mechanic change out a bushing on dozer, bushing came out, pinching and cutting left index finger. Three stitches and glue was required.

2019 · 1 incident

December 2, 2019 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
McMurry Ready Mix · Fall to the walkway or working surface

Miner slipped on ice and fell walking to office at end of workday.

2014 · 1 incident

July 9, 2014 WY · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
McMurry Ready Mix · Fall to the walkway or working surface

He fainted during a safety meeting and fell over on his face. He just came back from six days off, he said he was cutting wood on his days off and had not been getting enough sleep.

2012 · 1 incident

September 18, 2012 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer OTHER
McMurry Ready Mix · Bodily reaction, (Not Elsewhere Classified)

Miner did not report to work 9/19/2012. Called supervisor from hospital saying he broke/sprained ankle on 9/18/2012 while changing screens. Did not report injury day of occurrence. Sprained ankle was confirmed. Miner missed work on 9/19/2012. Returned to work on 9/20/2012. Suspicious as to being a work related injury.

2011 · 1 incident

September 6, 2011 WY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
McMurry Ready Mix · Caught in, under or between (Not Elsewhere Classified)

Injured miner had finger pinched by a chain. Appeared to be a minor cut/abrasion at the time of injury. Injury not healing as of 09/11/2011 so miner went to hospital ER.

2010 · 2 incidents

February 1, 2010 WY · Metal/Non-Metal quality control technician, laboratory technician, laboratory assistant SLIP OR FALL OF PERSON
McMurry Ready Mix · Fall down stairs

Miner slipped desending steps of lab trailer and fell on her back resulting in fractured ribs.

January 22, 2010 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
McMurry Ready Mix · Fall to the walkway or working surface

Miner slipped/fell on uneven ground. Fractured bone in hand used to brace the fall.

2009 · 1 incident

March 10, 2009 WY · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
McMurry Ready Mix · Fall from ladders

Miner caught the tread of his boot in a rung of an access ladder on an impact crusher while desending straining his lower back. 7000-1 not submitted. Have already been cited for this violation per Bill Coates, Green River, WY MSHA office on 06/22/2009.

2007 · 1 incident

September 5, 2007 WY · Metal/Non-Metal greaser, grease man, oiler, lube man, dragline oiler SLIP OR FALL OF PERSON
McMurry Ready Mix · Fall from ladders

Miner slipped off of 3rd step (from bottom) of ladder while ascending. Fell on left shoulder. Dislocated left shoulder. Ladder was not in disrepair or slippery.

2006 · 1 incident

August 14, 2006 WY · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
McMurry Ready Mix · Absorption of radiations, caustics, toxic and noxious substances

While fueling Cat D9L dozer, the quick connect fuel valve on the dozer did not close when the service truck fueling hose was removed. Diesel sprayed on the employee and got in his right ear. The diesel chemically burned the employee's right ear canal. No permanent damge resulted.

2005 · 3 incidents

September 19, 2005 WY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
McMurry Ready Mix · Over-exertion in lifting objects

Employee lifted too much weight at one time causing a hernia in right groin. Employee notified his supervisor on 10/1/05 of the injury and that he would be going to the doctor. Paperwork not received in company safety office until 10/10/05. Steve Pilling at Green River, WY MSHA office notified of incident circumstances on 10/11/05.

August 2, 2005 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech OTHER
McMurry Ready Mix · Caught in, under or between a moving and a stationary object

While refueling equipment, employee had his hand in driver's door door jam of the fuel truck. The wind blew the door shut crushing his right hand. This accident was discovered on 10/11/05 as being not reported to MSHA in the required time limit during a self-audit for the 3rd quarter Form 7000-2. Green River, WY MSHA office was notified on 10/11/05.

March 8, 2005 WY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
McMurry Ready Mix · Over-exertion (Not Elsewhere Classified)

Miner was replacing shocks on a pickup when he felt a pain in his chest. Miner was not lifting heavy objects, did not strike an object with his body, nor did he make an awkward movement. Pain did intesify with left arm motion.

For insurers, brokers, and safety consultants

The full compliance file on Crusher #7

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.