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Hi-Grade Materials operator

Controlled by Robar Enterprises Inc
MSHA operator ID: L08509
Fatalities
3
Total incidents
74
Mines on record
5
Years on record
1984–2026
Compliance record
MSHA citations since 2000
643
citations
213
significant & substantial
$579,456
proposed penalties
$422,409
paid to date
73% of proposed penalties paid to date, a $157,047 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
268
inspections on record
4,919
inspection hours
13.1
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.
643 citations across 4,919 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.
$579K
proposed penalties
$422K
current assessed
$422K
paid to date
$0
outstanding
635 assessments are final orders; 23 contested dockets.
As of the most recent assessment on 2026-05-13.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.

Top causes

Incident timeline

2026
1
2025
2
2024
1 (1f)
2023
1
2021
1
2020
3 (1f)
2017
1
2016
3
2014
1
2013
1
2012
1
2011
1
2010
5
2007
2
2005
1
2002
4
2001
4
2000
1
1998
3
1997
1
1996
2
1994
1
1992
8 (1f)
1991
3
1990
4
1989
2
1988
5
1987
5
1986
3
1985
2
1984
1

Mines on record

Fatalities under this operator

3 recorded
June 14, 2024 CA · Metal/Non-Metal fireman - locomotive, railroad clam operator, timekeeper, yard engine operator Fatality · FIRE
Hi-Grade Materials Co · Struck by... (Not Elsewhere Classified)

988 Loader caught fire, was unable to be extinguished by site personnel, 911 was called. Two fire crews arrived on site, one fireman approached the loader by the rear tire. The plant manager was yelling at them to get away from the tire. It exploded killing the fireman by the tire.

August 18, 2020 CA · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker Fatality · FALLING/SLIDING/ROLLING MATERIALS
Hi-Grade Materials Co. · Struck by rolling or sliding object

Employee clearing crusher, rock came down chute and entrapped employee in crusher.

August 11, 1992 CA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver Fatality · POWERED HAULAGE
Hi-Grade Materials Co · Caught in, under or between a moving and a stationary object

10242 CONTRACTING HAUL TRUCK DRIVER EXITED HIS OWN TRUCK NEAR THE OFFICE/TRUCK SCALE. UPON EXITING THE TRUCK, THE DRIVER DID NOT SET THE BRAKES OR THE BRAKES FAILED. THE TRUCK STARTED TO ROLL 15403HE DRIVER ATTEMPTED TO ENTER THE MOVING TRUCK. HE WAS UNSUCCESSFUL IN STOPPING HIS TRUCK AND THE DRIVER WAS RUN OVER BY HIS VEHICLE.

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