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Peabody Twentymile Mining LLC: 6,129 MSHA citations operator

Controlled by Peabody Energy Corporation
MSHA operator ID: P24354

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Fatalities
0
Total incidents
610
Mines on record
1
Years on record
1999–2026
Compliance record
MSHA citations since 2000
6,129
citations
787
significant & substantial
$5,212,104
proposed penalties
$4,042,605
paid to date
78% of proposed penalties paid to date, a $1,169,499 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
1,000
inspections on record
75,184
inspection hours
8.2
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.
6,129 citations across 75,184 inspection hours.
Source: MSHA inspections data, updated weekly.
Penalty disposition
ⓘ Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$5.2M
proposed penalties
$4.1M
current assessed
$4.0M
paid to date
$63K
outstanding
5,993 assessments are final orders; 173 contested dockets.
Of $2.8M in penalties contested before the Commission, $1.6M was upheld in final decisions.
As of the most recent assessment on 2026-06-22.
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.
13.0%
significant & substantial
6.6%
high negligence or reckless
13.0%
reasonably likely or greater
8.2%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 9.2% low, 84.2% moderate, 6.6% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Injury rate, 2025
ⓘ 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.
3.33
total case rate
2.67
days-away rate
0.000
fatality rate
About average. The US coal mining average was 3.19 and the all-US-mining average was 1.97 cases per 100 workers.
Year total case rate days-away fatal
2026 1.24 0.00 0.000
2025 3.33 2.67 0.000
2024 1.29 0.32 0.000
2023 3.09 1.93 0.000
2022 0.00 0.00 0.000
2021 0.00 0.00 0.000
2020 0.00 0.00 0.000
2019 1.49 1.49 0.000
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.
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: 2026-08-19
96%
within 1.5 mg/m3
7,782
samples
9.19
dust max (mg/m3)
17
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.
2,414 samples taken by MSHA inspectors, 5,368 by the operator.
Most-sampled occupations
  • CONTINUOUS MINER OPERATOR1,840
  • LONGWALL OPERATOR (TAILGATE SIDE)1,296
  • ROOF BOLTER (TWIN HEAD) (RETURN SIDE)972

Silica (quartz)

Last sampled: 2026-05-12
7.2
silica avg (%)
593
samples
38.2
silica max (%)
Most-sampled occupations
  • ROOF BOLTER (TWIN HEAD) (RETURN SIDE)162
  • LONGWALL OPERATOR (TAILGATE SIDE)137
  • CONTINUOUS MINER OPERATOR97
See US coal mines ranked by silica in their dust samples.

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: 2025-11-05
17%
over PEL
615
samples
Most-sampled occupations
  • ROOF BOLTER (TWIN HEAD) (RETURN SIDE)57
  • CONTINUOUS MINER OPERATOR52
  • ROOF BOLTER (TWIN HEAD) (INTAKE SIDE)45
See US mines ranked by noise samples over the legal limit.
Source: MSHA respirable dust, quartz, and noise sampling records, 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.
781 citations taken to the federal commission · 13% of citations on record
  • Settled 733 · 94%
  • Stood as issued 29 · 4%
  • Vacated or withdrawn 5 · 1%
  • Still open 14 · 2%
60%
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 314 decided S&S contests · industry: 79%
41%
Penalty reduction in decided contests
$2.7M proposed, $1.6M 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 2026-08-16. Vacated and withdrawn citations are removed from the file this view attributes through, so that outcome is slightly undercounted here.
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 operator contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
WEST 2009-81 Settlement Manning 2012 $228K → $123K
WEST 2009-333 Settlement Manning 2014 $183K → $119K
WEST 2009-1322 Prevail Manning 2011 $148K → $61K
WEST 2008-1576 Settlement Manning 2010 $141K → $42K
WEST 2020-0202 Settlement Miller 2020 $109K → $84K
WEST 2010-425 Settlement Manning 2010 $99K → $61K
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.

Top causes

Incident timeline

2026
1
2025
12
2024
4
2023
12
2019
4
2018
19
2017
10
2016
20
2015
15
2014
14
2013
14
2012
14
2011
25
2010
21
2009
63
2008
45
2007
49
2006
44
2005
17
2004
32
2003
41
2002
30
2001
57
2000
33
1999
14

Mines on record

For insurers, brokers, and safety consultants

Where Peabody Twentymile Mining LLC stands on silica, penalties, and injury rate

MSHA's standard limits respirable silica to 50 micrograms per cubic metre, but MSHA publishes dust and quartz as separate files and never the silica figure itself. We derive it per sample, score it against the limit, and set the operator's injury rate against a benchmark built from the full MSHA operator record. With the 26-year penalty trail, contest posture, and fatality history. Delivered as a PDF with the underlying data as CSV.

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