Royalton, Breathitt County,
KY
·
Temporarily Idled
MSHA Mine ID: 1519925
Diablo #4 has $6K in proposed MSHA penalties and $0 outstanding across 4 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
1
Years on record
2024
Latest incident
Oct 2024
Compliance record
MSHA citations since 2022
26
citations
12
significant & substantial
$5,786
proposed penalties
$5,314
paid to date
92% of proposed penalties paid to date, a $472 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2022
16
inspections on record
960
inspection hours
n/a
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.
Rate withheld: 960 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Diablo #4 has $6K in proposed MSHA penalties and $0 outstanding across 4 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.
$6K
proposed penalties
$5K
current assessed
$5K
paid to date
$0
outstanding
25 assessments are final orders; 4 contested dockets.
As of the most recent assessment on 2024-11-25.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
MSHA sampling at Diablo #4 shows respirable coal dust averaging 0.21 mg/m3 (99% compliant) across 85 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
0
0
0
2025 Q3
68
0
0
0.0
2025 Q2
2,203
0
0
0.0
2025 Q1
12,551
0
0
0.0
2024 Q4
18,757
5
2
266.6
2024 Q3
19,770
4
2
202.3
2024 Q2
20,781
4
2
192.5
2024 Q1
20,274
0
0
0.0
Show 6 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2023 Q4
17,241
4
2
232.0
2023 Q3
16,075
0
0
0.0
2023 Q2
21,006
3
2
142.8
2023 Q1
20,156
0
0
0.0
2022 Q4
18,163
5
2
275.3
2022 Q3
1,625
1
0
615.4
No fatalities recorded at this mine.
Reportable incidents
1 on file
2024 · 1 incident
October 24, 2024KY · Coalbulldozer operator, universal operator, heavy equipment operator, operating engineerSLIP OR FALL OF PERSON
Employee was running a drill when EE began feeling weak. EE feel into the controls of the drill while standing. EE drove self to the local Hazard ARH Hospital and was then transferred to UK in Lexington, KY.
For insurers, brokers, and safety consultants
The full compliance file on Diablo #4
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.