Windmillgap Surface Mine Coal
Onyx Energy, LLC
· Surface
Controlled by
Mohegan Energy Trustees LLC
Maybeury,
Mcdowell County,
WV
·
NonProducing
MSHA Mine ID: 4609478
Windmillgap Surface Mine has $7K in proposed MSHA penalties and $560 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Compliance record
MSHA citations since 2014
26
citations
2
significant & substantial
$7,191
proposed penalties
$6,631
paid to date
92% of proposed penalties paid to date, a $560 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2014
29
inspections on record
496
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: 496 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Windmillgap Surface Mine has $7K in proposed MSHA penalties and $560 outstanding across 0 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.$7K
proposed penalties
$7K
current assessed
$7K
paid to date
$560
outstanding
26 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-09-08.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also
the operator's enforcement record
MSHA sampling at Windmillgap Surface Mine shows respirable coal dust averaging 0.17 mg/m3 (100% compliant) across 77 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.0.17
dust avg (mg/m3)
0.67
dust max (mg/m3)
100%
within 1.5 mg/m3
77
samples
Most recent sample: 2024-04-23.
Silica (quartz)
15.8
silica avg (%)
27.9
silica max (%)
13
samples
Most recent sample: 2021-08-30.
Noise
0%
over PEL
23
samples
Most recent sample: 2023-10-10.
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 | 0 | 0 | 0 | |
| 2025 Q3 | 0 | 1 | 0 | |
| 2025 Q2 | 0 | 0 | 0 | |
| 2025 Q1 | 0 | 0 | 0 | |
| 2024 Q4 | 0 | 0 | 0 | |
| 2024 Q3 | 6,574 | 0 | 0 | 0.0 |
| 2024 Q2 | 6,775 | 0 | 0 | 0.0 |
| 2024 Q1 | 6,180 | 0 | 0 | 0.0 |
Show 42 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q4 | 4,911 | 1 | 0 | 203.6 |
| 2023 Q3 | 4,877 | 0 | 0 | 0.0 |
| 2023 Q2 | 4,121 | 0 | 0 | 0.0 |
| 2023 Q1 | 4,727 | 0 | 0 | 0.0 |
| 2022 Q4 | 4,244 | 0 | 0 | 0.0 |
| 2022 Q3 | 3,813 | 0 | 0 | 0.0 |
| 2022 Q2 | 3,838 | 1 | 0 | 260.6 |
| 2022 Q1 | 3,923 | 0 | 0 | 0.0 |
| 2021 Q4 | 4,264 | 1 | 0 | 234.5 |
| 2021 Q3 | 7,435 | 0 | 0 | 0.0 |
| 2021 Q2 | 5,976 | 0 | 0 | 0.0 |
| 2021 Q1 | 7,051 | 1 | 0 | 141.8 |
| 2020 Q4 | 2,510 | 0 | 0 | 0.0 |
| 2020 Q3 | 4,226 | 0 | 0 | 0.0 |
| 2020 Q2 | 21,013 | 8 | 0 | 380.7 |
| 2020 Q1 | 19,651 | 0 | 0 | 0.0 |
| 2019 Q4 | 20,931 | 2 | 0 | 95.6 |
| 2019 Q3 | 18,482 | 2 | 0 | 108.2 |
| 2019 Q2 | 19,203 | 3 | 0 | 156.2 |
| 2019 Q1 | 22,277 | 3 | 0 | 134.7 |
| 2018 Q4 | 21,230 | 0 | 0 | 0.0 |
| 2018 Q3 | 13,065 | 0 | 0 | 0.0 |
| 2018 Q2 | 586 | 0 | 0 | 0.0 |
| 2018 Q1 | 0 | 0 | 0 | |
| 2017 Q4 | 0 | 0 | 0 | |
| 2017 Q3 | 0 | 0 | 0 | |
| 2017 Q2 | 0 | 0 | 0 | |
| 2017 Q1 | 0 | 0 | 0 | |
| 2016 Q4 | 0 | 0 | 0 | |
| 2016 Q3 | 0 | 0 | 0 | |
| 2016 Q2 | 0 | 0 | 0 | |
| 2016 Q1 | 0 | 0 | 0 | |
| 2015 Q4 | 0 | 0 | 0 | |
| 2015 Q3 | 0 | 0 | 0 | |
| 2015 Q2 | 0 | 0 | 0 | |
| 2015 Q1 | 0 | 0 | 0 | |
| 2014 Q4 | 0 | 0 | 0 | |
| 2014 Q3 | 0 | 3 | 2 | |
| 2014 Q2 | 0 | 0 | 0 | |
| 2014 Q1 | 0 | 0 | 0 | |
| 2013 Q4 | 0 | 0 | 0 | |
| 2013 Q3 | 0 | 0 | 0 |
No reportable incidents on file.
MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.
For insurers, brokers, and safety consultants
The full compliance file on Windmillgap Surface Mine
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.