MOBILE CRUSHER #3 FRONTERA MATERIALS has $179K in proposed MSHA penalties and $0 outstanding across 4 contested dockets, plus health sampling and the full incident record.
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Fatalities
2
Total incidents
5
Years on record
2003–2024
Latest incident
Jul 2024
Compliance record
MSHA citations since 2001
203
citations
67
significant & substantial
$178,711
proposed penalties
$146,315
paid to date
82% of proposed penalties paid to date, a $32,396 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
75
inspections on record
1,418
inspection hours
14.3
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.
203 citations across 1,418 inspection hours.
Source: MSHA inspections data, updated weekly.
MOBILE CRUSHER #3 FRONTERA MATERIALS has $179K in proposed MSHA penalties and $0 outstanding across 4 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.
$179K
proposed penalties
$146K
current assessed
$146K
paid to date
$0
outstanding
192 assessments are final orders; 4 contested dockets.
As of the most recent assessment on 2026-01-13.
Source: MSHA assessed-violations and conference/litigation data, 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
An over the road truck driver was crushed while trying to unload gravel. Driver was parked in a jackknife position while trying to unload some of the gravel in EE's bed. While attempting to dump, EE's lift cylinder snapped and the trucks trailer fell on top of the driver's side killing the driver. 911 was called immediately and MSHA was called after.
Miner left haul truck running without setting the parking brake and/or chocking the wheels. The haul truck rolled forward and pinned the miner between the haul truck and miner's personal vehicle. Miner did not survive miner's injury.
Reportable incidents
3 on file (excluding fatalities above)
2024 · 1 incident
July 18, 2024TX · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techMACHINERY
EE made contact with an exposed fan blade on a generator motor as EE was diagnosing the engine for repairs. Guarding had been removed prior to the day of incident.
2011 · 1 incident
May 6, 2011TX · Metal/Non-Metalrotary bucket excavator operatorMACHINERY
EE WAS STANDING GUARD OUTSIDE CRUSHER WHILE WELDER WAS INSIDE DOING REPAIRS, WHEN WELDER SAW HIM HOLDING ON TO THE HANDRAILS AND THEN SAW HIM COLLAPSE ON THE GROUND. CPR WAS ADMINISTERED BUT HAD NO RESPONSE.
For insurers, brokers, and safety consultants
The full compliance file on MOBILE CRUSHER #3 FRONTERA MATERIALS
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.