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Lucerne Valley Pit Metal/Non-Metal

Hi-Grade Materials Co · Surface

Controlled by Robar Enterprises Inc

Lucerne Valley, San Bernardino County, CA · Active

MSHA Mine ID: 0403178

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Fatalities: 0
Total incidents: 3
Years on record: 2001–2017
Latest incident: Mar 2017

Compliance record

MSHA citations since 2000

202

citations

significant & substantial

$214,811

proposed penalties

$122,494

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	4,662	0	0	0.0
2025 Q2	4,483	1	1	223.1
2025 Q1	3,372	0	0	0.0
2024 Q4	4,703	4	2	850.5
2024 Q3	4,683	0	0	0.0
2024 Q1	3,306	0	0	0.0
2023 Q4	600	1	0	1666.7
2023 Q3	3,147	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

3 on file

2017 · 1 incident

March 21, 2017 CA · Metal/Non-Metal welder (shop) ENTRAPMENT

Hi-Grade Materials Co · Caught in, under or between collapsing material or buildings

While attempting to change skirting on conveyor, employee entered the dozer trap to remove bolts, equipment operator pushed material into the hopper and buried employee with material.

2002 · 1 incident

August 2, 2002 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator MACHINERY

Hi-Grade Materials Co · Flash burns (welding)

EMPLOYEE WAS WELDING AND THE WELDING ARC BOUNCED OFF THE TRUCK BEHIND HIM AND HIT THE INSIDE OF HIS WELDING HELMET.

2001 · 1 incident

August 16, 2001 CA · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE

Hi-Grade Materials Co · Struck against a moving object

EE WAS DRIVING A LOADER AND THE BOUNCING AROUND CAUSED TWIST OF LEFT TESTICLE.