Mining Incidents

ADDCAR System 18 HWM Serial No 23018 Coal

Rock Springs, WY, Sweetwater County, WY  ·  Abandoned
MSHA Mine ID: 4801645

ADDCAR System 18 HWM Serial No 23018 has $14K 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
8
Years on record
2005–2025
Latest incident
May 2025
Compliance record
MSHA citations since 2004
62
citations
4
significant & substantial
$14,108
proposed penalties
$11,218
paid to date
80% of proposed penalties paid to date, a $2,890 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2004
68
inspections on record
1,512
inspection hours
4.1
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.
62 citations across 1,512 inspection hours.
Source: MSHA inspections data, updated weekly.

ADDCAR System 18 HWM Serial No 23018 has $14K 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.
$14K
proposed penalties
$11K
current assessed
$11K
paid to date
$0
outstanding
62 assessments are final orders; 3 contested dockets.
As of the most recent assessment on 2025-11-06.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.

MSHA sampling at ADDCAR System 18 HWM Serial No 23018 shows respirable coal dust averaging 0.52 mg/m3 (94% compliant) across 125 samples.

Health sampling
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.
Respirable coal dust
Respirable coal dust and silica figures cover coal facilities. Dust compliance is measured against the current 1.5 mg/m3 standard; samples predating the 2014 standard are included, so compliance rates are a coarse historical signal.
0.52
dust avg (mg/m3)
3.25
dust max (mg/m3)
94%
within 1.5 mg/m3
125
samples
Most recent sample: 2025-11-11.
Silica (quartz)
3.7
silica avg (%)
6.3
silica max (%)
9
samples
Most recent sample: 2014-08-26.
Noise
7%
over PEL
68
samples
Most recent sample: 2025-11-06.
Source: MSHA respirable dust, quartz, and noise sampling records, 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 6,567 1 0 152.3
2025 Q3 10,497 0 0 0.0
2025 Q2 10,388 2 0 192.5
2025 Q1 12,474 0 0 0.0
2024 Q4 5,444 3 0 551.1
2024 Q3 0 0 0
2024 Q2 776 0 0 0.0
2024 Q1 0 0 0
Show 80 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 1,371 0 0 0.0
2023 Q3 72 0 0 0.0
2023 Q2 1,093 0 0 0.0
2023 Q1 506 0 0 0.0
2022 Q4 6,619 0 0 0.0
2022 Q3 6,121 1 0 163.4
2022 Q2 1,737 0 0 0.0
2022 Q1 90 0 0 0.0
2021 Q4 1,074 0 0 0.0
2021 Q3 1,670 0 0 0.0
2021 Q2 1,596 0 0 0.0
2021 Q1 3,872 0 0 0.0
2020 Q4 3,175 0 0 0.0
2020 Q3 7,712 0 0 0.0
2020 Q2 6,125 0 0 0.0
2020 Q1 5,610 0 0 0.0
2019 Q4 13,241 0 0 0.0
2019 Q3 12,798 0 0 0.0
2019 Q2 3,114 0 0 0.0
2019 Q1 0 0 0
2018 Q4 0 0 0
2018 Q3 0 0 0
2018 Q2 0 0 0
2018 Q1 1,849 0 0 0.0
2017 Q4 786 0 0 0.0
2017 Q3 0 0 0
2017 Q2 240 0 0 0.0
2017 Q1 262 0 0 0.0
2016 Q4 948 0 0 0.0
2016 Q3 4,242 0 0 0.0
2016 Q2 136 0 0 0.0
2016 Q1 1,419 0 0 0.0
2015 Q4 2,904 0 0 0.0
2015 Q3 16,719 0 0 0.0
2015 Q2 17,760 0 0 0.0
2015 Q1 18,147 0 0 0.0
2014 Q4 15,270 1 0 65.5
2014 Q3 18,034 2 0 110.9
2014 Q2 18,279 0 0 0.0
2014 Q1 17,829 1 0 56.1
2013 Q4 12,565 0 0 0.0
2013 Q3 9,281 0 0 0.0
2013 Q2 11,431 1 0 87.5
2013 Q1 2,410 0 0 0.0
2012 Q4 0 0 0
2012 Q3 0 0 0
2012 Q2 0 0 0
2012 Q1 0 0 0
2011 Q4 0 0 0
2011 Q3 4,065 0 0 0.0
2011 Q2 20,800 2 0 96.2
2011 Q1 11,425 0 0 0.0
2010 Q4 9,656 0 0 0.0
2010 Q3 8,147 0 0 0.0
2010 Q2 7,845 0 0 0.0
2010 Q1 8,703 0 0 0.0
2009 Q4 14,119 0 0 0.0
2009 Q3 20,355 0 0 0.0
2009 Q2 18,665 7 1 375.0
2009 Q1 13,981 4 0 286.1
2008 Q4 13,665 0 0 0.0
2008 Q3 16,563 0 0 0.0
2008 Q2 17,584 8 2 455.0
2008 Q1 16,623 0 0 0.0
2007 Q4 16,706 0 0 0.0
2007 Q3 21,911 9 0 410.8
2007 Q2 24,701 0 0 0.0
2007 Q1 21,033 0 0 0.0
2006 Q4 18,742 0 0 0.0
2006 Q3 18,917 0 0 0.0
2006 Q2 17,592 0 0 0.0
2006 Q1 18,747 7 0 373.4
2005 Q4 21,318 0 0 0.0
2005 Q3 19,035 0 0 0.0
2005 Q2 19,517 1 0 51.2
2005 Q1 19,476 5 1 256.7
2004 Q4 18,889 0 0 0.0
2004 Q3 16,164 3 0 185.6
2004 Q2 14,093 0 0 0.0
2004 Q1 5,613 4 0 712.6
No fatalities recorded at this mine.

Reportable incidents

8 on file

2025 · 1 incident

2015 · 1 incident

July 1, 2015 WY · Coal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
ADDCAR Systems, LLC · Struck against stationary object

While attempting to free an air hose coupling from the spooling eye of the reel with a pair of pliers, the hose unexpectedly continued through the spooling device; pulling the employee's hand along with the hose before the pliers could be released. A finger of the left hand likely hit the spooling device or the air hose and caused the tip of the finger to be over-extended.

2014 · 2 incidents

December 14, 2014 WY · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
ADDCAR Systems, LLC · Fall to the walkway or working surface

After the employee exited a pickup truck, his footing was lost on snowy ground causing him to fall; striking his head on the ground.

January 19, 2014 WY · Coal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
ADDCAR Systems, LLC · Caught in, under or between (Not Elsewhere Classified)

Employee was removing a rock from a conveyor car when the rock slipped out of his right and two fingers on his left hand were pinched between the rock and the frame of the conveyor car.

2010 · 2 incidents

November 6, 2010 WY · Coal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
ADDCAR Systems, LLC · Struck by flying object

Employee was attempting to connect two sequence plugs together when the plugs silpped apart. When this occurred one of the plugs struck him on the right front tooth,chipping that tooth.

September 1, 2010 WY · Coal electrician, lineman SLIP OR FALL OF PERSON
ADDCAR Systems, LLC · Fall onto or against objects

EE was helping pull the trailing cable of the continuous miner off of the cable reel in an effort to locate the reason that the circuit breaker was knocking. While doing this his foot became entangled in that trailing cable causing him to fall; and his head hit the ground. As the result the side shields on his safety glasses caused a laceration that required 7 sutures to close.

2008 · 1 incident

February 10, 2008 WY · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
ADDCAR Systems, LLC · Struck against stationary object

EE was making a belt splice on a conveyor car and needed a hammer while doing this task. As he attempted to get off of the car he slipped on some snow that was present there and in an attempt to catch his balance, his left hand struck the car's frame, resulting into a hairline fracture to a bone in that hand.

2005 · 1 incident

July 21, 2005 WY · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech EXPLODING VESSELS UNDER PRESSURE
ADDCAR Systems, LLC · Absorption of radiations, caustics, toxic and noxious substances

Employees were looking for an oil leak on in the miner pan jack area. In the process of troubleshooting the leak a hydraulic hose blew, spraying employee in the face. He was approximately 10' away and was wearing his safety glasses. He was taken to the hospital to have his eyes washed out and checked. Employee was given prescription eye drops.

For insurers, brokers, and safety consultants

The full compliance file on ADDCAR System 18 HWM Serial No 23018

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.