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CASTLE VALLEY PREP PLANT Coal

CANYON FUEL COMPANY LLC · Facility

Controlled by Wolverine Fuels LLC

Wellington, Carbon County, UT · Active

MSHA Mine ID: 4202455

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Email me when a new MSHA incident is filed at CASTLE VALLEY PREP PLANT.

Fatalities: 0
Total incidents: 1
Years on record: 2022
Latest incident: Apr 2022

Compliance record

MSHA citations since 2010

citations

significant & substantial

$3,726

proposed penalties

$3,726

paid to date

Source: MSHA violations data, updated weekly.

Quarterly safety rates

Citations per million employee-hours, as reported to MSHA

Quarter	Hours worked	Citations	S&S	Per 1M hrs
2025 Q4	2,234	0	0	0.0
2025 Q3	2,382	0	0	0.0
2025 Q2	3,205	0	0	0.0
2024 Q4	3,020	0	0	0.0
2024 Q3	3,182	0	0	0.0
2024 Q2	3,457	0	0	0.0
2024 Q1	4,889	0	0	0.0
2023 Q4	4,256	0	0	0.0

Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.

No fatalities recorded at this mine.

Reportable incidents

1 on file

2022 · 1 incident

April 7, 2022 UT · Coal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS

Canyon Fuel Company LLC · Struck by falling object

A plugged chute switch shut the plant feed belt off. An individual reported to the chute. EE saw 6" - 18" rock plugging the grizzly in the chute. EE attempted to dislodge one of the rocks with hand. Another rock dislodged dropping onto EE's hand smashing the right hand, little finger between the two rocks. The outside edge of EE's little finger was lacerated requiring stitches.