Mining Incidents

River Ridge P-1: 111 MSHA citations Coal

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

River Ridge P-1 has $23K in proposed MSHA penalties and $1K 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
$23,005
proposed penalties
$19,909
paid to date
87% of proposed penalties paid to date, a $3,096 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2021
33
inspections on record
1,846
inspection hours
6.0
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 1,846 inspection hours.
Source: MSHA inspections data, updated weekly.

River Ridge P-1 has $23K in proposed MSHA penalties and $1K 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.
$23K
proposed penalties
$21K
current assessed
$20K
paid to date
$1K
outstanding
109 assessments are final orders; 3 contested dockets.
Of $7K in penalties contested before the Commission, $5K was upheld in final decisions.
As of the most recent assessment on 2026-06-02.
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.
9.1%
significant & substantial
0.0%
high negligence or reckless
9.1%
reasonably likely or greater
10.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.9% none, 58.2% low, 40.9% moderate, 0.0% high, 0.0% reckless.
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.
12 citations taken to the federal commission · 11% of citations on record
  • Settled 12 · 100%
80%
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 5 decided S&S contests · industry: 79%
25%
Penalty reduction in decided contests
$7K proposed, $5K 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 2025-08-28.
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.
Docket Decision Judge Year Proposed / upheld
KENT 2025-0015 Settlement Young 2025 $5K → $4K
KENT 2025-0136 Settlement Paez 2026 $2K → $633
KENT 2024-0033 Settlement Simonton 2024 $295 → $159
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.

MSHA sampling at River Ridge P-1 shows 100% of 177 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: 2026-08-04
100%
within 1.5 mg/m3
177
samples
0.91
dust max (mg/m3)
0
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.
84 samples taken by MSHA inspectors, 93 by the operator.
Most-sampled occupations
  • BULLDOZER OPERATOR82
  • HIGHWALL DRILL OPERATOR46
  • HIGHLIFT OPERATOR/FRONT END LOADER21

Silica (quartz)

Last sampled: 2026-06-22
13.0
silica avg (%)
26
samples
31.7
silica max (%)
Most-sampled occupations
  • BULLDOZER OPERATOR12
  • HIGHWALL DRILL OPERATOR11
  • HIGHLIFT OPERATOR/FRONT END LOADER3

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: 2026-06-09
0%
over PEL
70
samples
Most-sampled occupations
  • BULLDOZER OPERATOR27
  • REFUSE TRUCK DRIVER/BACKFILL TRUCK DRIVE14
  • HIGHWALL DRILL OPERATOR12
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly.
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.
Year within 1.5 mg/m3 samples
2026 100% 36
2025 100% 55
2024 100% 37
2023 100% 20
2022 100% 18
2021 100% 11
Silica (quartz) by year
Year silica avg (%) samples
2026 17.4 6
2025 8.9 8
2024 14.5 6
2023 17.0 2
2022 10.9 3
2021 5.5 1
Noise by year
Year over PEL samples
2026 0% 13
2025 0% 18
2024 0% 14
2023 0% 10
2022 0% 10
2021 0% 5
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly.

River Ridge P-1 recorded 2.40 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.
2.40
total case rate
2.40
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 Kentucky, coal mining averaged 4.08 cases per 100 workers that year.
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
2025 * 2.40 2.40 0.000
2024 * 0.00 0.00 0.000
2023 * 2.60 2.60 0.000
2022 * 3.04 3.04 0.000
2021 * 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.
Ownership history
  1. 4TH GEN FUELS, LLC. 2021 to present
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 28 240,330
2025 29 324,103
2024 29 310,570
2023 26 363,504
2022 22 357,719
2021 14 161,836
Source: MSHA quarterly employment and production, updated weekly.

River Ridge P-1 sits in Letcher County, Kentucky, where the Census mining category is 3.5% 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.
Letcher County, Kentucky · Population 21,146
3.5%
Mining share of county employment
$40,501
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 20,201 1 1 49.5
2026 Q1 20,622 9 0 436.4
2025 Q4 20,176 0 0 0.0
2025 Q3 20,571 2 0 97.2
2025 Q2 21,537 5 0 232.2
2025 Q1 21,076 5 1 237.2
2024 Q4 20,075 0 0 0.0
2024 Q3 20,933 22 4 1051.0
Show 14 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 22,341 0 0 0.0
2024 Q1 19,490 11 0 564.4
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 8 0 399.8
2022 Q4 19,134 1 0 52.3
2022 Q3 17,555 9 1 512.7
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 9 0 785.9
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.