79% of proposed penalties paid to date, a $1,164,336 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
1,197
inspections on record
50,700
inspection hours
11.4
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.
5,799 citations across 50,700 inspection hours.
Source: MSHA inspections data, updated weekly.
Penalty disposition
ⓘDifferences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$5.6M
proposed penalties
$4.8M
current assessed
$4.5M
paid to date
$315K
outstanding
5,574 assessments are final orders; 178 contested dockets.
As of the most recent assessment on 2026-05-07.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
ASARCO LLC, a Delaware Limited Liability Company · Caught in, under or between a moving and a stationary object
Employee in flatbed service truck was parked on a waste dump at the Mission Mine. A 320 ton haul truck ran over flatbed service truck resulting in fatal accident.
June 20, 2010AZ · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techFatality · POWERED HAULAGE
Asarco LLC · Caught in, under or between a moving and a stationary object
The investigation is not complete, but as of now it appears a haul truck struck a pick-up truck. The cause of the accident is unknown at this time.
The investigation is not complete, but as of now it appears that the haul truck he was driving made contact with the safety berm and tipped on its side. The caue of the accident is unknown at this time.
August 15, 2008AZ · Metal/Non-Metalelectrician helperFatality · ELECTRICAL
Asarco LLC · Contact with electrical current
Employee (electrician apprentice) and a co-worker (journeyman electrician) were working on a light fixture of the SX upper tailings booster when he came in contact with energized wire.
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