Mining Incidents

River Ridge P-1 Coal

4TH GEN FUELS, LLC. · Surface
Cumberland, Letcher County, KY  ·  Active
MSHA Mine ID: 1519895

River Ridge P-1 has $22K in proposed MSHA penalties and $721 outstanding across 3 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
3
Years on record
2022–2025
Latest incident
Feb 2025
Compliance record
MSHA citations since 2021
111
citations
10
significant & substantial
$22,308
proposed penalties
$19,909
paid to date
89% of proposed penalties paid to date, a $2,399 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2021
32
inspections on record
1,830
inspection hours
6.1
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.
111 citations across 1,830 inspection hours.
Source: MSHA inspections data, updated weekly.

River Ridge P-1 has $22K in proposed MSHA penalties and $721 outstanding across 3 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.
$22K
proposed penalties
$21K
current assessed
$20K
paid to date
$721
outstanding
109 assessments are final orders; 3 contested dockets.
As of the most recent assessment on 2026-03-25.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.

MSHA sampling at River Ridge P-1 shows respirable coal dust averaging 0.11 mg/m3 (100% compliant) across 172 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.
0.11
dust avg (mg/m3)
0.91
dust max (mg/m3)
100%
within 1.5 mg/m3
172
samples
Most recent sample: 2026-06-10.
Silica (quartz)
13.0
silica avg (%)
31.7
silica max (%)
26
samples
Most recent sample: 2026-06-22.
Noise
0%
over PEL
70
samples
Most recent sample: 2026-06-09.
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly.
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 20,176 0 0 0.0
2025 Q3 20,571 2 0 97.2
2025 Q2 21,537 12 0 557.2
2025 Q1 21,076 5 1 237.2
2024 Q4 20,075 0 0 0.0
2024 Q3 20,933 22 4 1051.0
2024 Q2 22,341 0 0 0.0
2024 Q1 19,490 12 0 615.7
Show 12 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 19,720 0 0 0.0
2023 Q3 18,754 8 1 426.6
2023 Q2 18,395 0 0 0.0
2023 Q1 20,012 12 1 599.6
2022 Q4 19,134 1 0 52.3
2022 Q3 17,555 13 2 740.5
2022 Q2 15,502 0 0 0.0
2022 Q1 13,592 0 0 0.0
2021 Q4 12,573 0 0 0.0
2021 Q3 11,452 10 0 873.2
2021 Q2 9,429 1 0 106.1
2021 Q1 1,280 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

3 on file

2025 · 1 incident

February 13, 2025 KY · Coal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
4TH GEN FUELS, LLC. · Struck against a moving object

OPERATOR WAS RUNNING A 930 LOADER AND WORKING ON THE HAUL ROAD A ROCK ROLLED OFF THE BERM AND THE OPERATOR RAN OVER THE ROCK CAUSING EE TO BE BOUNCED UP IN THE AIR AND CAUSING PAIN IN EE'S LOWER BACK AND RADIATING DOWN EE'S LEFT LEG

2023 · 1 incident

January 26, 2023 KY · Coal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
4TH GEN FUELS, LLC. · Fall from machine

Bottom step broke letting injured worker fall to the ground

2022 · 1 incident

February 10, 2022 KY · Coal outside foreman, leadman MACHINERY
4TH GEN FUELS, LLC. · Struck by falling object

Injured worker was removing a belly pan from a CAT 992D loader. The Pan fell approximately 3 feet and caught EE's right hand between the pan and an impact wrench.

For insurers, brokers, and safety consultants

The full compliance file on River Ridge P-1

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.