Shannon Mine No. 3 has $26K 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
4
Years on record
2021–2025
Latest incident
Aug 2025
Compliance record
MSHA citations since 2019
63
citations
19
significant & substantial
$26,372
proposed penalties
$26,372
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2018
43
inspections on record
1,148
inspection hours
5.5
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.
63 citations across 1,148 inspection hours.
Source: MSHA inspections data, updated weekly.
Shannon Mine No. 3 has $26K 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.
$26K
proposed penalties
$26K
current assessed
$26K
paid to date
$0
outstanding
63 assessments are final orders; 1 contested dockets.
As of the most recent assessment on 2025-12-10.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
MSHA sampling at Shannon Mine No. 3 shows respirable coal dust averaging 0.10 mg/m3 (99% compliant) across 310 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.
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
38,910
3
1
77.1
2025 Q3
42,545
2
0
47.0
2025 Q2
44,933
0
0
0.0
2025 Q1
44,398
3
2
67.6
2024 Q4
40,308
1
0
24.8
2024 Q3
38,093
0
0
0.0
2024 Q2
33,819
3
2
88.7
2024 Q1
39,212
7
3
178.5
Show 22 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2023 Q4
45,605
0
0
0.0
2023 Q3
37,764
4
0
105.9
2023 Q2
32,945
3
2
91.1
2023 Q1
35,454
0
0
0.0
2022 Q4
33,917
4
0
117.9
2022 Q3
25,791
0
0
0.0
2022 Q2
39,641
1
0
25.2
2022 Q1
34,507
1
0
29.0
2021 Q4
17,180
4
2
232.8
2021 Q3
28,026
0
0
0.0
2021 Q2
26,427
11
5
416.2
2021 Q1
13,464
5
0
371.4
2020 Q4
21,100
0
0
0.0
2020 Q3
16,110
2
1
124.1
2020 Q2
20,675
0
0
0.0
2020 Q1
13,714
3
1
218.8
2019 Q4
14,648
0
0
0.0
2019 Q3
15,260
0
0
0.0
2019 Q2
9,192
2
0
217.6
2019 Q1
11,696
4
0
342.0
2018 Q4
15,590
0
0
0.0
2018 Q3
14,285
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
4 on file
2025 · 1 incident
August 13, 2025AL · Coalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDTOOLS (NONPOWERED)
Maintenance Employee attempting to loosen bolt/nut on boom/carousel on pump truck when wrench slipped off and the back of the employee's left hand struck sharp edge of plate on top of carousel resulting in a laceration to the back of the left hand.
Employee was walking on drill pattern that was sloped, wet and muddy, when employee lost balance resulting in a sprain to right knee.
For insurers, brokers, and safety consultants
The full compliance file on Shannon Mine No. 3
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.