Mining Incidents

Liberty Mine: 107 MSHA citations Coal

Alcoa Fuels Inc. · Surface
Controlled by Alcoa Corporation
Boonville, Warrick County, IN  ·  Active
MSHA Mine ID: 1202428

Liberty Mine has $45K in proposed MSHA penalties and $5K outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
19
Years on record
2014–2023
Latest incident
Aug 2023
Compliance record
MSHA citations since 2013
107
citations
31
significant & substantial
$45,023
proposed penalties
$38,992
paid to date
87% of proposed penalties paid to date, a $6,031 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2010
78
inspections on record
2,518
inspection hours
4.2
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.
107 citations across 2,518 inspection hours.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
A Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.
1
Section 107(a) orders
Most recent order: 2016-04-27.
On record since 2016.
Source: MSHA imminent-danger order records, updated weekly.

Liberty Mine has $45K in proposed MSHA penalties and $5K 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.
$45K
proposed penalties
$44K
current assessed
$39K
paid to date
$5K
outstanding
73 assessments are final orders; 1 contested dockets.
Of $5K in penalties contested before the Commission, $4K was upheld in final decisions.
As of the most recent assessment on 2026-07-06.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
30.1%
significant & substantial
4.9%
high negligence or reckless
30.1%
reasonably likely or greater
23.3%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 25.2% low, 69.9% moderate, 4.9% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
When citations were contested
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
1 citations taken to the federal commission · 1% of citations on record
  • Settled 1 · 100%
100%
S&S designation survived the contest
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 1 decided S&S contests · industry: 79%
22%
Penalty reduction in decided contests
$5K proposed, $4K after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2015-04-15.
Contested penalties
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
LAKE 2015-0417 Settlement Harner 2016 $5K → $4K
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.

MSHA sampling at Liberty Mine shows 100% of 275 respirable coal dust samples met the 1.5 mg/m3 standard.

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.

Last sampled: 2026-07-22
100%
within 1.5 mg/m3
275
samples
3.36
dust max (mg/m3)
1
over MSHA ECV
The excessive concentration value (ECV) is MSHA's own per-sample enforcement threshold, which builds in measurement uncertainty; a sample over its ECV can trigger a citation. The count covers only samples MSHA assigned an ECV.
140 samples taken by MSHA inspectors, 135 by the operator.
Most-sampled occupations
  • BULLDOZER OPERATOR151
  • HIGHWALL DRILL OPERATOR74
  • REFUSE TRUCK DRIVER/BACKFILL TRUCK DRIVE14

Silica (quartz)

Last sampled: 2026-07-29
6.4
silica avg (%)
30
samples
21.0
silica max (%)
Most-sampled occupations
  • HIGHWALL DRILL OPERATOR17
  • BULLDOZER OPERATOR13

Noise
The share counts noise samples whose measured dose exceeded the 90 dBA permissible exposure limit. It describes the sampled workplace, not what reached the miner's ear: hearing conservation programs and the hearing protection worn during the shift are recorded separately and are not reflected here.

Last sampled: 2026-07-22
2%
over PEL
62
samples
Most-sampled occupations
  • BULLDOZER OPERATOR25
  • HIGHWALL DRILL OPERATOR10
  • REFUSE TRUCK DRIVER/BACKFILL TRUCK DRIVE6
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly.
Health sampling trend
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 by year
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.
Year within 1.5 mg/m3 samples
2026 100% 22
2024 100% 17
2023 100% 25
2022 100% 6
2021 100% 3
2020 100% 4
2019 100% 12
2018 100% 37
2017 98% 44
2016 100% 45
2015 100% 40
2014 100% 15
2013 100% 5
Silica (quartz) by year
Year silica avg (%) samples
2026 1.0 3
2024 6.3 3
2023 11.3 2
2018 10.4 4
2017 7.1 2
2016 4.8 5
2015 6.2 11
Noise by year
Year over PEL samples
2026 0% 12
2024 0% 8
2023 0% 4
2022 0% 1
2021 0% 1
2020 0% 2
2019 0% 5
2017 0% 5
2016 0% 10
2015 0% 5
2014 0% 5
2013 25% 4
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly.

Liberty Mine recorded 0.00 reportable injury cases per 100 full-time workers in 2024.

Injury rate, 2024
This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below average. The US coal mining average was 3.16 and the all-US-mining average was 2.08 cases per 100 workers.
In Indiana, coal mining averaged 3.82 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year total case rate days-away fatal
2024 * 0.00 0.00 0.000
2023 0.00 0.00 0.000
2019 * 2.99 2.99 0.000
2018 2.30 1.53 0.000
2017 2.26 0.75 0.000
2016 2.40 0.00 0.000
2015 0.93 0.00 0.000
2014 1.83 0.00 0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Ownership history
  1. Vigo Coal Operating Company Inc 2009 to 2018
  2. Vigo Coal Operating Company LLC 2018 to 2022
  3. Alcoa Fuels Inc. 2022 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Coal production is reported quarterly and lags the current period; the most recent quarters may be incomplete.
Year Employees Coal produced (tons)
2026 70 270,825
2025 2
2024 21 485,144
2023 40 684,511
2022 6
2021 1
2020 0
2019 26 180,081
2018 86 961,481
2017 92 1,402,572
2016 95 1,141,643
2015 80 1,115,259
2014 81 1,221,067
2013 60 586,627
2012 25
Source: MSHA quarterly employment and production, updated weekly.

Liberty Mine sits in Warrick County, Indiana, where the Census mining category is 0.3% of county employment.

Local economic context
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Warrick County, Indiana · Population 64,650
0.3%
Mining share of county employment
$95,027
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
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
2026 Q2 46,502 6 0 129.0
2026 Q1 37,220 2 0 53.7
2025 Q3 500 0 0 0.0
2025 Q2 450 0 0 0.0
2025 Q1 400 0 0 0.0
2024 Q4 368 0 0 0.0
2024 Q3 3,395 0 0 0.0
2024 Q2 22,129 0 0 0.0
Show 44 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q1 31,981 0 0 0.0
2023 Q4 29,599 0 0 0.0
2023 Q3 30,274 4 4 132.1
2023 Q2 24,278 0 0 0.0
2023 Q1 21,139 1 0 47.3
2022 Q4 9,443 0 0 0.0
2022 Q3 1,335 0 0 0.0
2022 Q2 687 0 0 0.0
2022 Q1 546 3 0 5494.5
2021 Q4 613 0 0 0.0
2021 Q3 578 0 0 0.0
2021 Q2 0 0 0
2020 Q4 0 0 0
2020 Q3 0 1 0
2020 Q2 0 0 0
2019 Q4 1,880 0 0 0.0
2019 Q3 2,067 0 0 0.0
2019 Q2 10,247 1 0 97.6
2019 Q1 52,753 0 0 0.0
2018 Q4 56,744 1 1 17.6
2018 Q3 62,743 1 0 15.9
2018 Q2 71,206 1 0 14.0
2018 Q1 70,161 2 1 28.5
2017 Q4 62,554 3 2 48.0
2017 Q3 72,858 0 0 0.0
2017 Q2 70,676 2 0 28.3
2017 Q1 58,954 1 1 17.0
2016 Q4 54,924 2 1 36.4
2016 Q3 64,550 1 1 15.5
2016 Q2 67,588 0 0 0.0
2016 Q1 63,417 0 0 0.0
2015 Q4 55,385 3 1 54.2
2015 Q3 54,369 1 0 18.4
2015 Q2 51,036 0 0 0.0
2015 Q1 54,069 2 1 37.0
2014 Q4 53,673 0 0 0.0
2014 Q3 54,873 4 1 72.9
2014 Q2 55,961 0 0 0.0
2014 Q1 54,420 16 3 294.0
2013 Q4 49,056 0 0 0.0
2013 Q3 42,020 10 3 238.0
2013 Q2 40,226 1 1 24.9
2013 Q1 12,195 0 0 0.0
2012 Q4 5,155 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

19 on file

2023 · 1 incident

August 9, 2023 IN · Coal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver MACHINERY
Alcoa Fuels Inc. · Struck against a moving object

2600 excavator was loading shot rock into haul truck and a rock came off the bucket and jarred the truck. The operator complained about their back hurting.

2019 · 1 incident

January 7, 2019 IN · Coal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Vigo Coal Operating Company LLC · Over-exertion in pulling or pushing objects

IE claims that when closing the door on a storage container, EE felt a pain in arm. After follow up for persistent pain on 1/30/2019, IE was placed on restricted duty until an orthopedic surgeon could decide if a steroid injection is necessary to control inflammation of shoulder joint. This injury is still under investigation.

2018 · 6 incidents

December 11, 2018 IN · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Vigo Coal Operating Company LLC · Struck by flying object

IEs were in the process of inflating a tire to examine it to determine where a slow leak was emanating from. As the tire was being inflated, a lock ring became dislodged. This resulted in a rapid deflation of the tire. The second lock ring came loose as well and struck both employees.

December 11, 2018 IN · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Vigo Coal Operating Company LLC · Struck by flying object

IEs were in the process of inflating a tire to examine it to determine where a slow leak was emanating from. As the tire was being inflated, a lock ring became dislodged. This resulted in a rapid deflation of the tire. The second lock ring came loose as well and struck both employees.

June 25, 2018 IN · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech DISORDERS (PHYSICAL AGENTS)
Vigo Coal Operating Company LLC · Contact with heat

Fueler was found laying on the ground by the night shift end dump drivers prior to the start of their shift. EE was aware of EE's surroundings, The foreman was contacted and a ambulance was dispatched immediately. EMS observed that all vitals were normal. Transferred to Deaconess Gateway Hospital EE was examined and given fluids and released to work with no restrictions.

June 18, 2018 IN · Coal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Vigo Coal Operating Company LLC · Struck against a moving object

Mowing hillside and equipment overturned.

May 8, 2018 IN · Coal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Vigo Coal Operating Company LLC · Over-exertion (Not Elsewhere Classified)

Employee was dismounting from dozer and slipped on the wet ground and heard a popping noise in right knee. EE continued to work with no restrictions. Surgery was scheduled for a torn meniscus which was repaired on 09/21/18.

January 3, 2018 IN · Coal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator POWERED HAULAGE
Vigo Coal Operating Company Inc · Caught in, under or between running or meshing objects

While troubleshooting a bad roller, employee was attempting to move away from belt structure when employee's coat got caught by the belt. That pulled employee's arm to the roller resulting in a laceration to left arm.

2017 · 3 incidents

November 18, 2017 IN · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech POWERED HAULAGE
Vigo Coal Operating Company Inc · Caught in, under or between a moving and a stationary object

IE was attempting to remove mud from the transmission housing of a pickup truck. IE violated Co policy by not chocking the wheels, not locking/tagging, and not de-energizing the truck prior to maintenance. Resulted in truck moving while IE was still on ground with the tire of the truck contacting ee resulting in a broken clavicle and a laceration to ear

September 19, 2017 IN · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Vigo Coal Operating Company Inc · Struck by... (Not Elsewhere Classified)

IE was using a pry bar while repairing a radiator. As IE was tightening a bracket, the pry bar slipped free, striking IE in the upper lip, resulting in a laceration. IE was treated, and 4 sutures were applied.

January 12, 2017 IN · Coal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Vigo Coal Operating Company Inc · Caught in, under or between running or meshing objects

IE was attempting to open heater valves on dozer with engine running. In process IE's thumb contacted the alternator belt, resulting in a fracture of bone in left thumb, as well as laceration that required sutures to close.

2016 · 4 incidents

July 31, 2016 IN · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Vigo Coal Operating Company Inc · Struck against stationary object

Conditions contributing to this injury are: high heat and humidity, steel on steel rigging and failure to adequately rig the chain to the track pad.

July 16, 2016 IN · Coal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Vigo Coal Operating Company Inc · Fall to lower level, (Not Elsewhere Classified)

While walking to close a valve, the injured employee stepped into an opening that had been created when a drain panel had been removed. Injured employee fell 7 feet to concrete floor below. IE has been ordered to take physical therapy to repair damaged muscle.

March 21, 2016 IN · Coal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Vigo Coal Operating Company Inc · Struck by... (Not Elsewhere Classified)

EE was using a 24" pipe wrench. EE was in the kneeling position pulling the wrench toward EE when the wrench slipped off the nut causing the handle to strike EE slightly above the forehead. EE received 5 staples in the scalp.

March 11, 2016 IN · Coal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Vigo Coal Operating Company Inc · Over-exertion in lifting objects

EE stated reached above the hose crimping machine and lifted the die to place in the machine. At this time EE felt pain in left shoulder. The die is estimated at 25lbs. The resulting diagnosis was a partial tear of the rotator cuff.

2015 · 1 incident

December 11, 2015 IN · Coal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Vigo Coal Operating Company Inc · Over-exertion (Not Elsewhere Classified)

Stated he was not sure what he did. States he did pick up a piece of metal that he realized he couldn't pick up by himself. He got another employee to help him & had no problem until an hour later when he started to hurt. X-rays negative. Diagnosed as an illness - tenosynovitis.

2014 · 3 incidents

April 28, 2014 IN · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Vigo Coal Operating Company Inc · Caught in, under or between a moving and a stationary object

EE was removing the hoist cylinder yoke from the radiator guard of the D9 dozer. He rigged the yoke with 3/8" chain and was using the 20 ton hoist to ease the yoke out. He positioned his R hand on the yoke to stabilize it. The yoke cleared the radiator and shifted slightly. Chain tightened and pinched little/ring finger of R hand. Sutures were placed in both fingers.

April 2, 2014 IN · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech DISORDERS (REPEATED TRAUMA)
Vigo Coal Operating Company Inc · Over-exertion (Not Elsewhere Classified)

Employee alleges he developed Carpal Tunnel Syndrome while performing his work as a mechanic at Liberty Mine. The diagnosis was confirmed on April 2, 2014 and surgery was performed April 10, 2014. Both wrist areas are affected. There are two procedures, right wrist surgery on April 10, 2014 and left two weeks later. This will be reported to MSHA and 7000-1 counted as illness.

March 11, 2014 IN · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Vigo Coal Operating Company Inc · Over-exertion (Not Elsewhere Classified)

While repairing a machine employee was holding a drive line in one hand while starting the bolts with the other felt a pop in left shoulder