Mining Incidents

Westmoreland San Juan Mining LLC: 1 recorded fatality operator

MSHA operator ID: P15965

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Fatalities
1
Total incidents
806
Mines on record
4
Years on record
1984–2026
Compliance record
MSHA citations since 2000
2,985
citations
594
significant & substantial
$2,007,123
proposed penalties
$1,685,014
paid to date
84% of proposed penalties paid to date, a $322,110 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
1,945
inspections on record
61,133
inspection hours
4.9
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.
2,985 citations across 61,133 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.
$2.0M
proposed penalties
$1.7M
current assessed
$1.7M
paid to date
$0
outstanding
2,897 assessments are final orders; 126 contested dockets.
Of $1.1M in penalties contested before the Commission, $589K was upheld in final decisions.
As of the most recent assessment on 2025-10-22.
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.
20.4%
significant & substantial
4.8%
high negligence or reckless
20.3%
reasonably likely or greater
9.9%
permanently disabling or fatal if injury occurs
Negligence coding: 0.2% none, 9.6% low, 85.4% moderate, 4.8% 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.
6.43
total case rate
0.00
days-away rate
0.000
fatality rate
Above average. The US coal mining average was 3.19 and the all-US-mining average was 1.97 cases per 100 workers.
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
2026 * 7.68 0.00 0.000
2025 * 6.43 0.00 0.000
2024 1.96 1.96 0.000
2023 5.62 3.75 0.000
2022 3.88 1.66 0.000
2021 3.01 1.29 0.000
2020 2.20 0.88 0.000
2019 3.05 1.14 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.
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: 2026-05-29
95%
within 1.5 mg/m3
5,425
samples
7.13
dust max (mg/m3)
19
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.
2,095 samples taken by MSHA inspectors, 3,330 by the operator.
Most-sampled occupations
  • CONTINUOUS MINER OPERATOR1,202
  • LONGWALL OPERATOR (TAILGATE SIDE)823
  • ROOF BOLTER (TWIN HEAD) (RETURN SIDE)474

Silica (quartz)

Last sampled: 2024-04-22
3.4
silica avg (%)
222
samples
24.3
silica max (%)
Most-sampled occupations
  • LONGWALL OPERATOR (TAILGATE SIDE)58
  • CONTINUOUS MINER OPERATOR41
  • ROOF BOLTER (TWIN HEAD) (RETURN SIDE)23

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: 2025-10-22
7%
over PEL
631
samples
Most-sampled occupations
  • BULLDOZER OPERATOR69
  • MECHANIC63
  • COAL TRUCK DRIVER45
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.
300 citations taken to the federal commission · 10% of citations on record
  • Settled 274 · 91%
  • Stood as issued 21 · 7%
  • Vacated or withdrawn 5 · 2%
50%
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 177 decided S&S contests · industry: 79%
37%
Penalty reduction in decided contests
$856K proposed, $540K 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 2018-11-07. 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
CENT 2012-669 Settlement Lewis 2013 $100K → $71K
CENT 2010-1284 Dismissal Manning 2011 $76K → $13K
CENT 2011-529 Settlement Tureck 2013 $62K → $37K
CENT 2013-272 Settlement Lewis 2013 $61K → $38K
CENT 2012-488 Settlement Gill 2013 $59K → $40K
CENT 2013-315 Settlement Lewis 2013 $47K → $30K
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.

Top causes

Incident timeline

2026
2
2025
3
2024
1
2023
3
2022
10
2021
10
2020
6
2019
9
2018
8
2017
8
2016
22
2015
18
2014
30
2013
20
2012
23
2011
15
2010
13
2009
22
2008
37
2007
31 (1f)
2006
29
2005
37
2004
34
2003
49
2002
60
2001
28
2000
15
1999
23
1998
20
1997
13
1996
11
1995
13
1994
12
1993
8
1992
8
1991
20
1990
18
1989
22
1988
33
1987
34
1986
10
1985
11
1984
7

Mines on record

Fatalities under this operator

1 recorded
November 12, 2007 NM · Coal laborer, bull gang, parts runner, roustabout, roof trimmer/scaler Fatality · MACHINERY
Westmoreland San Juan Mining LLC · Struck by... (Not Elsewhere Classified)

Conveyor Belt broke free from feeder breaker and struck employee on his back, knocking him down.

For insurers, brokers, and safety consultants

Where Westmoreland San Juan 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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