Mining Incidents

Bonanza Process Plant Metal/Non-Metal

Bonanza, Uintah County, UT  ·  Active
MSHA Mine ID: 4202702

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Fatalities
0
Total incidents
5
Years on record
2023–2025
Latest incident
Oct 2025
Compliance record
MSHA citations since 2020
37
citations
1
significant & substantial
$5,552
proposed penalties
$5,099
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 10,012 0 0 0.0
2025 Q3 10,492 0 0 0.0
2025 Q2 7,836 4 0 510.5
2025 Q1 7,153 2 0 279.6
2024 Q4 9,240 0 0 0.0
2024 Q3 11,161 6 1 537.6
2024 Q2 11,699 0 0 0.0
2024 Q1 12,068 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

5 on file

2025 · 3 incidents

October 1, 2025 UT · Metal/Non-Metal electrician, lineman HANDTOOLS (NONPOWERED)
American Gilsonite Company · Caught in, under or between (Not Elsewhere Classified)

A miner was turning a pipe with a pipe wrench in one hand, and their other hand on the top of the pipe where an elbow was located. The pipe turned faster than the miner expected, and the miners thumb got caught in the elbow, bending it back.

September 18, 2025 UT · Metal/Non-Metal washer operator, sizing operator HANDLING OF MATERIALS
American Gilsonite Company · Caught in, under or between a moving and a stationary object

A miner was conducting an inspection on an agitator. As the agitator turned, a bolt contacted the miner's finger, resulting in lacerations.

August 26, 2025 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
American Gilsonite Company · Struck by... (Not Elsewhere Classified)

A miner was stripping electrical wires with a utility knife. The knife came out of the insulation as the miner pulled it down and came into contact with EE's right wrist, cutting the arm.

2024 · 1 incident

March 27, 2024 UT · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver STRIKING OR BUMPING
American Gilsonite Company · Struck against stationary object

Employee was changing to go home. Took sock off, stood up and hit head on open locker door.

2023 · 1 incident

September 29, 2023 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
American Gilsonite Company · Caught in, under or between a moving and a stationary object

Heavy ring fell forward while being removed, employee tried to stop it and pinched a finger between two pieces of metal.