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.
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 1,156 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.
Of $6K in penalties contested before the Commission, $6K was upheld in final decisions.
As of the most recent assessment on 2025-12-10.
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.
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.
2citations taken to the federal commission · 3% of citations on record
Stood as issued
2 · 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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 2 decided S&S contests · industry: 79%
0%
Penalty reduction in decided contests
$6K proposed, $6K 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 2022-02-01.
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.
MSHA sampling at Shannon Mine No. 3 shows 99% of 310 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: 2025-12-26
99%
within 1.5 mg/m3
310
samples
1.95
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.
141 samples taken by MSHA inspectors, 169 by the operator.
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.
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.
Shannon Mine No. 3 recorded 0.00 reportable injury cases per 100 full-time workers in 2025.
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.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below average. The US coal mining average was 3.19 and the all-US-mining average was 1.97 cases per 100 workers.
In Alabama, coal mining averaged 3.32 cases per 100 workers that year.
Year
total case rate
days-away
fatal
2025
0.00
0.00
0.000
2024
0.00
0.00
0.000
2023
1.32
1.32
0.000
2022
0.00
0.00
0.000
2021 *
0.00
0.00
0.000
2020 *
0.00
0.00
0.000
2019 *
0.00
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.
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
30
30,527
2025
65
269,502
2024
66
234,625
2023
65
242,513
2022
50
228,008
2021
45
261,572
2020
31
148,410
2019
24
174,831
2018
24
71,465
Source: MSHA quarterly employment and production, updated weekly.
Shannon Mine No. 3 sits in Jefferson County, Alabama, 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.
Jefferson County, Alabama · Population 669,744
0.3%
Mining share of county employment
$64,589
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
16,068
0
0
0.0
2026 Q1
22,324
0
0
0.0
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
Show 24 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
33,819
3
2
88.7
2024 Q1
39,212
7
3
178.5
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
2
0
59.0
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.